aly (r-410a) series.pmd

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Air Cooled Scroll Water Chillers ALY (R-410A) Series ALY010D thru ALY120D 10 TR thru 120 TR 35 kW thru 422 kW

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Page 1: ALY (R-410A) series.pmd

Air Cooled Scroll Water ChillersALY (R-410A) Series

ALY010D thru ALY120D10 TR thru 120 TR35 kW thru 422 kW

Page 2: ALY (R-410A) series.pmd

Company BusinessZamil Air Conditioners (ZAC), a sector business of Zamil Industrial, is the largest supplier of air conditioners in the Middle East. It manufacturesand markets a whole range of air conditioners from room air conditioners to packaged units to large capacity chillers for residential, commercialand industrial applications. Zamil Air Conditioners was founded in 1974 as one of the first air conditioning companies to be established in SaudiArabia and today is a leading international manufacturer of air conditioning systems & service solutions and is Number One in the Middle East.ZAC’s operations are structured into four companies supporting seven in-house brands and twelve products and service units as well as anumber of international brands under the OEM Sales. The seven in-house brands are Zamil Air Conditioners, Classic, Zamil, Cooline, CoolCare,Climatech and Geoclima.

The four companies are:1. Zamil Air Conditioners & Home Appliances Co. (L.L.C.), supporting Zamil, Classic, Cooline, GE and OEM brands for consumers.

2. Zamil Central Air Conditioners Co. (L.L.C.), supporting Zamil Air Conditioners, Cooline and Climatech for commercial and industrial customers.

3. Zamil Air Conditioning and Refrigeration Services Co. (L.L.C.), providing electromechanical engineering, construction and project managementservices, HVAC Operation & Maintenance, Retrofit Services, Spare Parts, Fire Protection, Controls, Electrical Services, Coils, Ducting and Coating.

4. Geoclima srl is an independent business supporting other three companies for their requirements of Chillers and Double Skin AHU’s.

The first three Companies- direct their business operations from the First and Second Industrial Cities in Dammam, Saudi Arabia and have aproduct design center in Austria.GEOCLIMA has its engineering and production departments located at Monfalcone, Italy.All the four companies, while operating independently, supplement each other’s activities in a way that makes synergy work at its best andachieves ZAC’s goals of maximizing customer value and satisfaction.

OEM Sales - Private LabelingZamil Air Conditioners produces branded air conditioners under OEM agreements for several leading international brands. Such relationships aretestimony to the excellence of ZAC’s engineering and production processes. Most of the units produced under the private labeling agreementsare for window and mini-split systems. However, ZAC is expanding its OEM offerings to include residential and light commercial units. Some ofthe OEM brands manufactured at Zamil Air Conditioners are: Supra, Sanyo and Blue Star.

Joint VentureMiddle East Air Conditioners - Joint Venture with General Electric.Zamil Air Conditioners partners with GE Appliances - Europe since 1997, in a joint venture called Middle East Air Conditioners (MEAC), formanufacturing and marketing of GE branded air conditioners.MEAC was awarded the license to manufacture Window, Mini Splits and Ducted Split types under the brand names GE, Hotpoint and RCA. Today,MEAC enjoys extensive coverage in Saudi Arabia, GCC and the African market. In an ever-changing market, MEAC continually strives to acquirenew technologies and stylish integrated design with optimum performance and reliability that bring greater value to customers.

Factories and ProductionZamil Air Conditioners has two prime manufacturing plants in Dammam, Saudi Arabia and a production facility in Italy operated by GEOCLIMA anda product design center in Austria. ZAC can produce up to 900,000 room air conditioners, 300,000 mini-split systems and 65,000 central air-conditioning systems per annum and supplies air conditioning products to over 55 countries across the world - the major markets being GCC,Middle East, North Africa, Europe and Asia.

Quality & Product CertificatesThe Quality systems and policies at Zamil Air Conditioners comply with the required ISO 9001:2008 certification.ZAC’s products are certified with:1. CE (Council of European Community).

2. UL (Underwriters Laboratory).

3. Eurovent (Certified Performance).

4. ISO 9001-2008 (International Organization for Standardization).

5. AHRI (Air-Conditioning, Heating and Refrigeration Institute).

Other awards include the prestigious Engineering Excellence Award of General Electric and the inaugural Prince Mohammed bin Fahd Al SaudAward for Factory Safety.

Our Products & Service UnitsIn addition to consumer products such as the Room Air Conditioners (RAC) and the Mini Splits, Zamil Air Conditioners manufactures a host ofresidential, commercial and industrial air conditioners. This broad product range extends from the concealed units up to 5 TR, the ducted splitsup to 30 TR, the packaged units up to 95 TR, the single and double skin air handling units up to 138,316 CFM, the water chillers up to 500 TR andthe centrifugal chillers up to 5,000 TR cooling capacity.

Our products and services include, in addition to Maintenance, Retrofit & Operations (MRO), complete integrate suite of solutions like:

• Zamil Projects: Providing EPC for electromechanical works for Industrial, Utility and Oil & Gas customers.

• Zamil Controls: Design, assembly, integration and commissioning of low current & low voltage systems.

• Zamil Fire Protection: Design, integration and commissioning of active fire protection systems.

• Zamil Electrical: Design, integration and commissioning of lv/mv (low voltage/middle voltage) systems.

• Coil & Coating: Coil replacement, anti-corrosion coating, water proofing & reflective coating and passive fire protection solutions.

• Zamil Ducting: Facilities designs and manufactures high quality duct systems and other HVAC industry related products, utilizing state of theart automated duct lines, Plasma Cutting, CNC Turret punch press and other specific machinery through two duct factories located in SaudiArabia western province (Yanbu) and Eastern province (Dammam).

Page 3: ALY (R-410A) series.pmd

INDEX

CONTINUING RESEARCH RESULTS IN STEADY IMPROVEMENTS.THEREFORE, THESE SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.

Contents Page

Model decoding ........................................................................................................................................ 2

Introduction ........................................................................................................................................... 3-5

Unit features, standard specifications & options .................................................................................... 6-9

Physical data ......................................................................................................................................10-11

Selection procedure ............................................................................................................................12-13

Performance data ................................................................................................................................ 14-17

Electrical data ......................................................................................................................................... 18

Water side pressure drop ........................................................................................................................ 19

Unit dimensions .................................................................................................................................20-24

Typical schematic wiring diagram .......................................................................................................25-28

Microprocessor controller ........................................................................................................................ 29

Application guidelines .........................................................................................................................30-34

Rigging instructions ................................................................................................................................. 35

Installation clearance .............................................................................................................................. 36

Mounting location .................................................................................................................................... 37

Load distribution ...................................................................................................................................... 38

1

Page 4: ALY (R-410A) series.pmd

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Page 5: ALY (R-410A) series.pmd

INTRODUCTIONZamil Air cooled scroll chillers (ALY series) are the heart of most central Air Conditioning systems for medium sizebuildings. They consist of one or more hermetic scroll compressors, air-cooled condenser coils with condenser fan(s) andmotor(s), insulated liquid cooler, expansion device, interconnecting refrigerant piping, oil & refrigerant charge, control panel,wiring and other auxiliaries.

ALY series, The new generation of air cooled packaged liquid chillers.

ALY series air cooled scroll chillers are available in capacity range 10 TR (35 kW) to 120 TR (422 kW) at AHRI conditions,in one single enclosure, utilizing refrigerant R-410A as working fluid with option of three different power supply ratings.

ALY series chillers have been designed and manufactured to meet the requirements of the Gulf’s severe climatic condi-tions and specifically for outdoor installation, on roofs or ground level. They are factory assembled, leak tested, evacuated,internally wired, fully charged with refrigerant. Each ALY chiller is fully factory tested before delivery and is ready forinstallation. All what required on site is to connect chilled water pipes and main power supply.

Scroll Compressor:The scroll compressor consists of two involutes or Archimedean spirals (Figure-1). One spiral is positioned inside the otherto form a series of recent-shaped pockets. During compression the upper spiral remains stationary and the lower one, beingeccentrically mounted on the drive shaft, describes an orbital rather than a simple rotary motion.

3

Page 6: ALY (R-410A) series.pmd

How a Scroll Compressor works:

Compression in the scroll is created by the interaction of an orbiting spiral and a stationaryspiral. A refrigerant enters the outer openings as one of the spirals orbits.

The open passages are sealed off as gas is drawn into the spiral.

As the spiral continues to orbit, the gas is compressed into two increasingly smaller pockets.

By the time the gas arrives at the center port, discharge pressure has been reached.

Actually, during operation, all six gas passages are in various stages of compression at alltimes, resulting in nearly continuous suction and discharge.

4

FIGURE- 1

Page 7: ALY (R-410A) series.pmd

Refrigerant enters the compressor at the suction connection and flows around the motor’s housing and enters at thebottom side through the openings.

Oil droplets separate from the refrigerant and fall into the oil sump.

All suction refrigerant passes through the electrical motor, ensuring full motor cooling.

After that the refrigerant enters the scroll elements.

COOLERSThe DX shell and tube cooler with removable ‘U’ shaped bundled tubes are made of internally grooved copper tubesexpanded into heavy steel tubular sheets. The cooler housing and baffles are constructed of steel and brass respectively.All coolers are fitted with vent, drain connection and water pipe connections as below:

1. Male pipe thread (MPT) connection for the models ALY010D - ALY060D.

2. Victaulic connection for the models ALY075D - ALY120D.

The coolers are insulated with heavy closed cellular foam insulation (3/4” thick).

5

WATER SIDE REFRIGERANT SIDE

DESIGN PRESSURE,(BAR/PSIG)

TEST PRESSURE,(BAR/PSIG)

DESIGN PRESSURE,(BAR/PSIG)

TEST PRESSURE,(BAR/PSIG)

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14/204ALY010D - ALY120D

ALY010D - ALY120D 10/147 11.3/165 29/426 41.5/610

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STD

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10/147 29/426 41.5/610

Tandem Compressor:Models ALY020D to ALY120D use tandem scroll compressors. Tandem scroll compressors make possible great flexibilityin system design for a wide range of applications. Since each compressor may be operated individually, this designprovides simple, capacity reduction & maximum power savings and greatly simplifies system control. In any well designedsystem, this kind of design offers a much greater factor of redundancy than a single compressor and provides emergencyprotection for the product. In addition to greater reliability, one great advantage of the multiple compressor design over otherlarge horsepower compressors is the fact that in the event of compressor damage, replacement of either compressor in thetandem can be easily done.

Page 8: ALY (R-410A) series.pmd

FEATURESThese ALY series, packaged air cooled water chillers are designed to provide engineering excellence in comfort air condi-tioning and industrial cooling with a superior combination of energy saving, performance, application flexibility, ease ofservice & maintenance and withstanding extremely high ambient temperatures. These chillers incorporate a wide range offeatures including:

* Microprocessor controller, which monitors analog and digital inputs to achieve precise control & protective functions ofthe air cooled water chiller units. The microprocessor controller is complete with all the hardware and software neces-sary to control the chiller unit and ensures its efficiency and reliability.

* Compact unit design and open base design provides easy access and service to the major components and accesso-ries.

* High Energy Efficiency Ratio (EER) hermetic scroll compressors.

* Single point power connection to minimize job site installation cost and time.

* Completely wired control panel with the advanced microprocessor controller that provides all the necessary operationsand safety controls.

* Made ready connection for remote ON/OFF switch and General Alarm output.

* Compressor connections are Direct On Line (DOL) for all models (see electrical data).

* Low noise condenser fans, direct drive with rolled form venturi design to eliminate airflow recycling & short circuiting.

* Condenser fans are die-cast aluminum aerodynamic design, top discharge & provided with protective grille mounted ontop panel within the unit casing.

* All condenser fan motors are totally enclosed air over type (TEAO) with class ''F'' winding insulation.

CAPACITY CONTROLThe Zamil air cooled scroll water chillers incorporate stepped load shedding as required by most energy managementsystems. Modulation of capacity in response to system load requirements is affected by the microprocessor controllerwhich monitors the leaving water temperature.

Capacity control is achieved by cycling compressors ON/OFF and sequential operation of compressors which providesoptimal part load capacities for chillers with multiple compressors.See the following table for the standard and optional capacity control for each unit.

STANDARD SPECIFICATIONS

% FULL LOAD CAPACITY CONTROL

STANDARD OPTIONAL MODEL NUMBER

ALY010D - ALY015D

ALY020D - ALY045D

ALY050D - ALY120D

100-OFF

100-50-OFF

100-75-50-25-OFF

100-HGBP-OFF

100-50-HGBP-OFF

100-75-50-25-HGBP-OFF

NOTES:1. HGBP = Hot gas bypass available on lead compressor for all models (optional).2. HGBP modulates to approximately 50% of compressor step capacity. Example: ALY050 with HGBP (25% x 0.5=12.5%

minimum capacity).

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Page 9: ALY (R-410A) series.pmd

CONDENSER COILSVertical & V-configurations condenser coils are corrugated fin and tube type, constructed of seamless 3/8" dia. & 0.017"(0.42 mm) thick copper tubes, mechanically bonded to aluminum fins for maximum heat transfer efficiency.

As a standard on aluminum fins, ZAC provides Coil Coating, which is a single component of aluminumimpregnated coating applied on the fins of heat exchanging coils. The product has been designed for Middle East climateconditions. A high chemical, abrasion and UV resistance has been proven in both laboratories and on field environment. Thecoating can be applied at the Zamil Air Conditioners factory as well as in the field for maintenance or rejuvenation purposes.

The fins have full self spacing collars which completely cover each tube. The staggered tube design improves the thermalefficiency. End plates support sheets are 14 gauge galvanized steel, formed to provide structural strength. Each coil ispressure tested in the factory at not less than 650 psi air pressure.

CABINETAll units are of heavy gauge (G-90) galvanized steel. Steel sheet panels are zinc coated and galvanized by hot dipprocess of lock-forming quality conforming to ASTM A 653 commercial weight G-90 followed by baked on electrostaticpolyester dry powder coat.

CONTROL PANELThe control panel design is equivalent to NEMA 4 (IP55) with hinged door for easy access ensuring dust and weather-proof construction. Internal power and control wiring is neatly routed, adequately anchored and all wires identified withcable markers as per NEC standards applicable to HVAC industry.The electrical controls used in the control panel are UL approved and are reliable in operation at high ambient conditionsfor a long period.

MICROPROCESSOR CONTROLLERA new compact electronic controller with a complete management for air cooled water chiller control capability. Thiscontroller manages the analog and digital inputs to achieve precise operation and safety function of the chiller unit.

A user friendly display interface allows to access the operating condition, control set point & alarm of the unit that areclearly visible on its display board.

The controller is equipped with a compressor rotation operation to allow the compressor running hours to be balanced(lead lag). The controller has feasibility to be connected to a supervisor network via RS485 serial line for RemoteMonitoring and Remote configuration of the unit parameters.

The controller consists of the following hardware:1. Control board - complete control of function and safety operation of the compressor(s) and fan(s).2. Aux. Board - Expansion Board for more I/O.3. Remote Monitoring System (optional) - Remote Monitoring & Configuration of the unit.4. User interface Board/Remote Terminal - Provided to access the operating condition, control set point and alarms of the

unit.

Access of the following status on the display:1. Water inlet / outlet Temperature2. Compressor Status3. Fan Status4. Alarms5. SI or English Unit6. Pump ON/OFF status (optional)

System Protection:1. Compressor Winding High Temperature / Overloading2. Low / High Pressure3. Evaporator freeze Protection4. Sensor Error5. Time delay - Anti recycle time for compressor6. No Water Flow or Trip Pump condition

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Page 10: ALY (R-410A) series.pmd

CONDENSER FANSCondenser fans are constructed of die cast aluminum blades/hubs with direct driven motors. All fans are statically anddynamically balanced to operate at minimum noise and vibration.

CONDENSER FAN MOTORCondenser fans, the impeller and motors are so constructed to form an integral unit. All fan motors shall be three phase withclass ''F'' winding insulation and ball bearings for high ambient application. These fan motors are of totally enclosed air over type(TEAO) with inherent thermal protection of automatic reset type & specially designed for outdoor applications.

STANDARD CONTROL & SAFETY DEVICESMICROPROCESSOR CONTROLLER: This controller monitors the analog and digital inputs to achieve precise control &safety functions of the unit.

COMPRESSOR MOTOR INTERNAL OVERLOAD: The internal overload protects the compressor and senses themotor winding temperature in case of overload.

STARTERS: The starter is operated by the control circuit and provides power to the compressor motors. These devicesare rated to handle safely both RLA and LRA of motors.

UNDER/OVER VOLTAGE AND PHASE PROTECTION: Protects against low/over incoming voltages as well as singlephasing, phase reversal and phase imbalance by de-energizing the control circuit. It is an automatic reset device, but itcan be set up for manual reset.

CRANKCASE HEATERS: Each compressor has crankcase heater. The compressor crankcase heater is always onwhen the compressors are de-energized. This protect the system against refrigerant migration, oil dilution and potentialcompressor failure.

HIGH PRESSURE SWITCH: This switch provides an additional safety protection in the case of excessive dischargepressure.

LOW PRESSURE CUT-OFF: This switch provides an additional safety protection in the case of unsafe low suction pres-sure.

CIRCUIT BREAKERS: Protects against compressor/condenser fans/pump branch circuit fault. When tripes, the breakeropens the power supply to the compressor/condenser fans/pump and control circuit through auxiliary contacts.

STANDARD ACCESSORIESUNIT ON-OFF SWITCH: ON-OFF switch is provided for manually switching the unit control circuit.

USER DISPLAY AND KEYPAD: Display the status of the unit, menu and setting adjustments, fault indications due totrips and reset trips and lockouts.

THERMAL EXPANSION VALVE: Thermal expansion valve is used to regulate the refrigerant flow to the water coolerand maintain a constant superheat used for ALY010D - ALY015D.

ELECTRONIC EXPANSION VALVE: Electronic expansion valve is used to regulate the refrigerant flow to the water coolerand maintain a constant superheat and load optimization for ALY020D - ALY120D.

REPLACEABLE FILTER DRIER: Refrigerant circuits are kept free of harmful moisture, sludge, acids and oil contaminatingparticles by the filter drier.

CONTROL CIRCUIT TRANSFORMER: A factory mounted and wired control circuit transformer is furnished eliminating theneed for running a separate 220 volt power supply to the unit control circuit.

SIGHT GLASS: A moisture indicating sight glass installed in the liquid line. An easy-to-read color indicator showsmoisture contents and provides a mean for checking the system refrigerant charge.

LIQUID LINE SOLENOID VALVE: Closes when the compressor is off to prevent any liquid refrigerant from accumulatingin the water cooler during the off cycle.

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Page 11: ALY (R-410A) series.pmd

OPTIONSHOT GAS BYPASS SYSTEM: Hot gas bypass is provided on the lead circuit to permit operation of the system down to50% of its unloaded capacity. Under low ambient condition, it controls temperature by eliminating the need to cycle thecompressor on and off, ensuring narrow temperature swing and lengthen the life span of the compressor.

WATER FLOW SWITCH: Paddle type field adjustable flow switch for water cooler circuits. Interlock into unit safety circuitsso that the unit will remain off until water flow is determine.

SUCTION AND DISCHARGE VALVES: To isolate the compressor in order to facilitate servicing or compressor replace-ment.

UNIT MOUNT SPRING ISOLATORS: These housed spring assemblies have a neoprene friction pad on the bottom toprevent vibration transmission.

LIQUID COOLERS: ASME code stamped liquid cooler.

PRESSURE GAUGES: Suction & discharge pressures gauges.

SAFETY VALVE: This valve protects the unit against high discharge pressure in the system due to malfunction of highpressure switches.

NON-FUSED MAIN DISCONNECT SWITCHES: To disconnect power supply of the unit for servicing and repair works. Thisas well equipped with door interlock device.

CONDENSER COIL GUARD: Protect the condenser coil from physical damage.

COMPRESSOR/COOLER GUARD: Protect the compressor from vandalism.

COOLER HEATER WRAPPED: Prevent freezing up of water on low ambient temperature.

COPPER FINS/TUBES CONDENSER COILS: For seashore salty corrosive environments.

BMS: BACNET, MODBUS, LON works and remote monitoring.

COATED COPPER FINS/TUBES CONDENSER COILS: For seashore or acid corrosive environments.

: A two component coating system that withstands the extreme climate conditions. The coating can beapplied to all metal parts of HVAC equipment; the piping, the compressors and grids might require a different pre- treatmentand layer build up. Please check ResisTec product information sheets, the heat exchangers can not be coated using thistype. The coating can be applied at the Zamil Air Conditioners factory as well as in the field for maintenance or rejuvenationpurposes.

9

Multi

Page 12: ALY (R-410A) series.pmd

UNIT SIZE ALY010D ALY015D ALY020D ALY025D ALY030D ALY035D ALY045D

COMPRESSOR

PART NUMBER 208/230V-3Ph-60Hz 800-696-67 800-696-76 800-696-67 (2) 800-696-73 (2) 800-696-76 (2) 800-696-79 (2) 800-696-85 (2)

380V-3Ph-60Hz 800-696-68 800-696-77 800-696-68 (2) 800-696-74 (2) 800-696-77 (2) 800-696-80 (2) 800-696-86 (2)

460V-3Ph-60Hz 800-696-69 800-696-78 800-696-69 (2) 800-696-75 (2) 800-696-78 (2) 800-696-81 (2) 800-696-87 (2)

NUMBER OF COMPRESSORS 1 1 2 2 2 2 2

NUMBER OF CIRCUITS 1 1 1 (TANDEM) 1 (TANDEM) 1 (TANDEM) 1 (TANDEM) 1 (TANDEM)

OIL CHARGE PER COMPRESSOR, Liters 3.25 3.25 3.25 3.25 3.25 4.67 6.8

% FULL LOAD CAPACITY CONTROL 100-0 100-0 100-50-0 100-50-0 100-50-0 100-50-0 100-50-0

MOTOR OVERLOAD PROTECTION (INTERNAL) ELECTRONIC

OIL LUBRICATION CENTRIFUGAL OIL PUMP

REFRIGERANT R-410A

EXPANSION VALVE DEVICE THERMOSTATIC ELECTRONIC

CONTROL VOLTAGE 220V-1Ph-60Hz

CONDENSERCONDENSER COIL Tube Dia.- Rows - Fins per inch 3/8–2–12 3/8–2–12 3/8–3–12 3/8–4–12 3/8–4–12 3/8–3–12 3/8–3–12

Total face area, Sq. ft. 27.8 44.4 44.4 44.4 53.3 88.9 106.7

AIRFLOW, CFM 13931 26998 25786 24694 25902 51572 53548

NUMBER OF FAN/FAN DIA.,mm 1/800 2/800 2/800 2/800 2/800 4/800 4/800

FAN MOTOR RPM @ 230/380/460-3-60 990/990/1030 990/990/1030 990/990/1030 990/990/1030 990/990/1030 990/990/1030 990/990/1030

COOLERPART NUMBER 800-897-83 800-897-84 800-897-85 800-897-88 800-897-89 800-897-90 800-897-91

SHELL DIAMETER, mm 140 140 140 168 168 168 194

LENGTH, mm 1265 1570 1770 1705 1805 2205 2029

TOTAL WATER HOLDING VOLUME, Liters 12 16 19 21 26 32 38

WATER IN/OUT PIPE DIA.mm 38 50 50 64 64 64 75

GENERALREFRIGERANT CHARGE PER COMP., kg (COMP. 1/2) 6 9 6 9 10 11 14

SOUND PRESSURE LEVEL, dBA (3m./5m./10m.) 67.2/63.6/58.4 70.2/66.6/61.4 70.2/66.6/61.4 70.7/67.2/61.9 71.9/68.4/63.1 76.3/72.8/67.5 78.8/75.3/70

SHIPPING/OPERATING WEIGHTS (Aluminum coil), kg 654/666 762/778 861/880 934/958 975/1001 1660/1692 1762/1830

SHIPPING/OPERATING WEIGHTS (Copper coil), kg 694/706 826/842 959/978 1075/1099 1144/1170 1855/1887 2028/2066

PHYSICAL DATA

NOTES: 1. All compressors operate at 3500 RPM @ 60Hz.2. Sound pressure level : ±2dBA.

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Page 13: ALY (R-410A) series.pmd

11

UNIT SIZE ALY050D ALY060D ALY075D ALY080D ALY090D ALY110D ALY120D

COMPRESSOR

PART NUMBER 208/230V-3Ph-60Hz 800-696-73 (4) 800-696-76 (4) 800-696-79 (4) 800-696-85 (4) 800-696-88 (4)

380V-3Ph-60Hz 800-696-74 (4) 800-696-77 (4) 800-696-80 (4) 800-696-86 (4) 800-696-89 (4)

460V-3Ph-60Hz 800-696-75 (4) 800-696-78 (4) 800-696-81 (4) 800-696-87 (4) 800-696-90 (4)

NUMBER OF COMPRESSORS 4 4 4 4 4 4 6

NUMBER OF CIRCUITS 2 (TANDEM) 2 (TANDEM) 2 (TANDEM) 2 (TANDEM) 2 (TANDEM) 2 (TANDEM) 3 (TANDEM)

OIL CHARGE PER COMPRESSOR, Liters 3.25 3.25 4.67 4.67/6.8 6.8 6.8/6.3 6.3

% FULL LOAD CAPACITY CONTROL 100-75-50-25-0 100-75-50-25-0 100-75-50-25-0 100-75-50-25-0 100-75-50-25-0 100-75-50-25-0100-75-50-25-0

MOTOR OVERLOAD PROTECTION (INTERNAL) ELECTRONIC

OIL LUBRICATION CENTRIFUGAL OIL PUMP

REFRIGERANT R-410A

EXPANSION VALVE DEVICE ELECTRONIC

CONTROL VOLTAGE 220V-1Ph-60Hz

CONDENSERCONDENSER COIL Tube Dia.- Rows - Fins per inch 3/8–4–12 3/8–4–12 3/8–3–12 3/8–3–12 3/8–3–12 3/8–4–12

Total face area, Sq. ft. 106.7 106.7 177.8 177.8 213.3 213.3 213.3

AIRFLOW, CFM 51804 51804 103144 103144 107096 103512 103608

NUMBER OF FAN/FAN DIA.,mm 4/800 4/800 8/800 8/800 8/800 8/800 8/800

FAN MOTOR RPM @ 230/380/460-3-60 990/990/1030 990/990/1030 990/990/1030 990/990/1030 990/990/1030 990/990/1030 990/990/1030

COOLERPART NUMBER 800-897-92 800-897-93 800-897-94 800-897-95 800-897-96 800-897-98 800-897-99

SHELL DIAMETER, mm 194 194 219 219 219 273 273

LENGTH, mm 2029 2229 2264 2464 2665 2217 2517

TOTAL WATER HOLDING VOLUME, Liters 38 42 47 57 67 72 97

WATER IN/OUT PIPE DIA.mm 75 75 100 100 100 125 125

GENERALREFRIGERANT CHARGE PER COMP., kg (COMP. 1/2) 7 9 12 12/14 14 14/18 18

SOUND PRESSURE LEVEL, dBA (3m./5m./10m.) 73.7/70.2/64.9 74.9/71.4/66.1 79.3/75.8/70.5 80.8/77.2/72 81.8/78.3/73 81.4/77.8/72.6 80.9/77.4/72.1

SHIPPING/OPERATING WEIGHTS (Aluminum coil), kg 1803/1841 1818/1860 3186/3238 3250/3307 3438/3660 3595/3678 3737/3834

SHIPPING/OPERATING WEIGHTS (Copper coil), kg 2145/2183 2160/2202 3576/3628 3642/3699 3910/4132 4171/4254 4416/4513

PHYSICAL DATA

800-696-79 (2) 800-696-85 (2)

800-696-80 (2) 800-696-86 (2)800-696-81 (2) 800-696-87 (2)

800-696-85 (2) 800-696-88 (2)

800-696-86 (2) 800-696-89 (2) 800-696-87 (2) 800-696-90 (2)

3/8–3–123/8–4–12

NOTES: 1. All compressors operate at 3500 RPM @ 60Hz.2. Sound pressure level : ±2dBA.

Page 14: ALY (R-410A) series.pmd

DESIGN REQUIREMENTSThe following design requirements must be known to select a package chiller.1. Required cooling capacity in tons2. Leaving chilled water temperature in 0F (LCWT)3. Chilled water flow rate in GPM4. Chilled water cooling range in 0F (water in temp. _ water out temp.)5. Design ambient temperature6. Minimum ambient temperature7. Altitude8. Electrical power supply

SAMPLE SELECTIONSelect an Air Cooled Packaged chiller for the following conditions:Required system capacity is 33 tons at 540F entering chilled waterand 440F leaving water. Design ambient temperature is 950F.Altitude is 2000 feet above sea level.Water cooler fouling factor is 0.00010. Power supply: 380V-3Ph-60Hz.

STEP-1: UNIT SELECTIONEntering the capacity performance data at given LCWT and ambient temperature.ALY035 chiller unit at sea level will produce 36.7 tons and 34.5 kW compressorpower input at 440F leaving chilled water temperature with 100F water temperaturedifference and 950F ambient temperature.

For the conditions required, the unit actual cooling capacity when corrected foraltitude (0.99) and fouling factor (1.0).Capacity = 36.7x0.99x1.0 = 36.3 Tons, which then exceeds the requirements.So the selection is correct.

STEP-2: CHILLED WATER FLOW (GPM):

Water GPM = Required capacity (Tons) x 24

= 33 x 24

= 79.2 GPM Cooling Range, ΔT 100F

SELECTION PROCEDURE (English units)

ELEVATION ABOVESEA LEVEL (FT.)

CAPACITYCORRECTION

FACTOR0

200040006000

1.000.990.980.97

TABLE - 1

TABLE - 2

Referring to pressure drop chart (page # 19), pressure drop at 79.2 GPM = 15.3 ft. of water for selected model.

STEP-3: ELECTRICALRefer to electrical data at 380V-3Ph-60Hz, the main power wire size for ALY035 is to be sized at a minimum circuitampacity (MCA) of 117 Amps and the main branch protection device is to be sized at a maximum over current protection(MOCP) of 175 Amps.

STEP-4: CHILLED WATER PUMP SELECTIONFor chilled water pump selection, add all pressure drop in the closed chilled water loop piping to the pressure drop calcu-lated in step 2.

STEP-5: LCWT CORRECTIONRefer to table-3: Add correction factor to design leaving chilled water temperature (LCWT) when chilled water tempera-ture range is above 100F and subtract correction from design leaving chilled water temperature (LCWT) when watertemperature range is below 100F.EXAMPLE:If LCWT rise is 12.50F, enter correction curve at 12.50F and read the correction factor of 0.2. The corrected LCWT is44+0.2 = 44.20F.

NOTE: 1. When the chilled water temperature rise is less than 80F, the high water flow rate will result to excessive pressuredrop. In such cases, contact factory for special selection of a cooler with wider baffle spacing.

2. Please refer to water pressure drop curves.

12

TABLE - 3CHILLED WATER TEMPERATURE RISE (0F)

CO

RR

ECTI

ON

FA

CTO

R (0 F)

0

-0.2

-0.45 10

+0.4

+0.2

+0.6

15 20

EVAPORATOR FOULINGFACTOR (HR-FT2-0F/BTU)

0.000100.000250.000500.000750.00100

CAPACITYCORRECTION

FACTOR1.0000.9920.9780.9650.951

POWERINPUT

FACTOR1.0000.9970.9900.9840.978

AHRISTANDARDS

ARI-550/590

Page 15: ALY (R-410A) series.pmd

SELECTION PROCEDURE (Metric units)

ELEVATION ABOVESEA LEVEL (Meter)

CAPACITYCORRECTION

FACTOR0

60012001800

1.000.990.980.97

TABLE - 1

Referring to pressure drop chart (page # 19), pressure drop 4.85 LPS = 43.8 kPa for selected model.

STEP-3: ELECTRICALRefer to electrical data at 380V-3Ph-60Hz, the main power wire size for ALY035 is to be sized at a minimum circuitampacity (MCA) of 117 Amps and the main branch protection device is to be sized at a maximum over current protection(MOCP) of 175 Amps.

STEP-4: CHILLED WATER PUMP SELECTIONFor chilled water pump selection, add all pressure drop in the closed chilled water loop piping to the pressure drop calcu-lated in step 2.

STEP-5: LCWT CORRECTIONRefer to table-3: Add correction factor to design leaving chilled water temperature (LCWT) when chilled water tempera-ture range is above 60C and subtract correction from design leaving chilled water temperature (LCWT) when watertemperature range is below 60C.EXAMPLE:If LCWT rise is 7.40C, enter correction curve at 7.40C and read the correction factor of 0.11. The corrected LCWT is60C+0.11 = 6.110C.

NOTE: 1. When the chilled water temperature rise is less than 4.40C, the high water flow rate will result to excessivepressure drop. In such cases, contact factory for special selection of a cooler with wider baffle spacing.

2. Please refer to water pressure drop curves.

TABLE - 2

DESIGN REQUIREMENTSThe following design requirements must be known to select a proper package chiller.1. Required cooling capacity in kilowatt (kW)2. Leaving chilled water temperature in 0C (LCWT)3. Chilled water flow rate in LPS4. Chilled water cooling range in 0C (water in temp. _ water out temp.)5. Design ambient temperature6. Minimum ambient temperature7. Altitude8. Electrical power supply

SAMPLE SELECTIONSelect an Air Cooled Packaged chiller for the following conditions:Required system capacity is 122 kW at 120C entering chilled waterand 60C leaving water. Design ambient temperature is 350C.Altitude is 600 meter above sea level.Water cooler fouling factor is 0.000018. Power supply: 380V-3Ph-60Hz.

STEP-1: UNIT SELECTIONEntering the capacity performance data at given LCWT and ambient temperature.ALY035 chiller unit at sea level will produce 127.3 kW and 34.3 kW compressorpower input at 60C leaving chilled water temperature with 60C water temperaturedifference and 350C ambient temperature.

For the conditions required, the unit actual cooling capacity when corrected foraltitude (0.99) and fouling factor (1.0).Capacity = 127.3x0.99x1.0 = 126 kW, which then exceeds the requirements.So the selection is correct.

STEP-2: CHILLED WATER FLOW (LPS):

Water LPS = Required capacity (kW) x 0.239

= 122 x 0.239

= 4.85 LPS Cooling Range, ΔT 60C

13

TABLE - 3CHILLED WATER TEMPERATURE RISE (0C)

CO

RR

ECTI

ON

FA

CTO

R (0 C

)

+0.33

+0.22

+0.11

-0.11

-0.2254 6 7 8

0

109

EVAPORATOR FOULINGFACTOR (M2-0C/W)

0.0000180.0000440.0000880.0001320.000176

CAPACITYCORRECTION

FACTOR1.0000.9920.9780.9650.951

POWERINPUT

FACTOR1.0000.9970.9900.9840.978

AHRISTANDARDS

ARI-550/590

Page 16: ALY (R-410A) series.pmd

42 0 F

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44 0 F

Page 17: ALY (R-410A) series.pmd

48 0 F

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796

.48

ALY

060

D57

.256

.410

.713

7.28

53.7

62.6

9.2

128.

8849

.969

.77.

711

9.76

45.9

77.4

6.5

110.

16A

LY 0

75D

75.2

69.4

10.7

180.

4870

.877

.19.

216

9.92

66.1

86.1

7.8

158.

6461

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614

6.88

ALY

080

D84

80.8

10.5

201.

678

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189.

3673

.699

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717

6.64

6811

1.3

6.5

163.

2A

LY 0

90D

93.1

90.6

10.6

223.

4487

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0.6

9.1

210.

2481

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196.

0875

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46.

518

1.44

ALY

110

D10

7.5

106.

410

.625

810

0.8

118.

19.

124

1.92

93.8

131.

17.

722

5.12

86.3

145.

56.

420

7.12

ALY

120

D12

1.3

121.

710

.629

1.12

113.

813

5.1

9.1

273.

1210

5.7

150

7.7

253.

6897

.116

6.5

6.4

233.

04A

LY 0

10D

10.2

9.5

10.7

24.4

89.

510

.79.

022

.88.

712

.17.

520

.88

7.9

13.6

6.1

18.9

6A

LY 0

15D

15.2

13.6

10.5

36.4

814

.215

.19

34.0

813

.216

.87.

731

.68

12.2

18.7

6.5

29.2

8A

LY 0

20D

20.4

18.3

11.1

48.9

619

20.6

9.3

45.6

17.6

23.3

7.8

42.2

416

26.3

6.4

38.4

ALY

025

D25

.624

.111

61.4

424

26.8

9.4

57.6

22.3

29.9

7.9

53.5

220

.533

.26.

649

.2A

LY 0

30D

29.7

28.5

1171

.28

27.7

31.6

9.4

66.4

825

.835

.18

61.9

223

.839

6.7

57.1

2A

LY 0

35D

39.3

35.2

1194

.32

3739

9.5

88.8

34.5

43.6

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82.8

3248

.76.

876

.8A

LY 0

45D

48.6

45.8

10.9

116.

6445

.650

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410

9.44

42.5

56.4

810

239

.262

.56.

794

.08

ALY

050

D51

.647

.211

.312

3.84

48.4

52.6

9.6

116.

1645

.158

.58.

210

8.24

41.5

65.2

6.8

99.6

ALY

060

D59

.157

1114

1.84

55.5

63.3

9.4

133.

251

.670

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912

3.84

47.6

786.

711

4.24

ALY

075

D78

.170

.211

187.

4473

.577

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517

6.4

68.7

878.

116

4.88

63.6

97.2

6.8

152.

64A

LY 0

80D

87.1

81.6

10.8

209.

0481

.990

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319

6.56

76.4

100.

87.

918

3.36

70.7

112.

26.

716

9.68

ALY

090

D96

.691

.510

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1.84

90.9

101.

69.

321

8.16

84.9

112.

88

203.

7678

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56.

718

8.88

ALY

110

D11

1.2

107.

510

.926

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104.

411

9.2

9.3

250.

5697

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7.9

233.

2889

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6.6

215.

04A

LY 1

20D

124.

812

2.8

10.9

299.

5211

713

6.2

9.3

280.

810

8.6

151.

27.

826

0.64

99.6

167.

76.

523

9.04

ALY

010

D10

.29.

510

.724

.48

9.5

10.7

9.0

22.8

8.7

12.1

7.5

20.8

87.

913

.66.

118

.96

ALY

015

D15

.813

.810

.837

.92

14.8

15.3

9.3

35.5

213

.817

833

.12

12.7

18.8

6.7

30.4

8A

LY 0

20D

20.8

18.4

11.2

49.9

219

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546

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17.9

23.4

7.9

42.9

616

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539

.12

ALY

025

D26

24.2

11.1

62.4

24.3

26.9

9.5

58.3

222

.529

.98

5420

.633

.26.

749

.44

ALY

030

D30

28.6

11.1

7228

31.7

9.5

67.2

2635

.28

62.4

23.8

396.

757

.12

ALY

035

D40

.135

.411

.296

.24

37.7

39.3

9.6

90.4

835

.143

.88.

284

.24

32.5

48.8

6.9

78A

LY 0

45D

49.9

46.2

11.1

119.

7646

.751

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511

2.08

43.5

56.7

8.1

104.

440

.162

.86.

896

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ALY

050

D52

.947

.611

.512

6.96

49.6

52.9

9.8

119.

0446

.258

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311

0.88

42.5

65.4

710

2A

LY 0

60D

60.6

57.5

11.2

145.

4456

.863

.79.

613

6.32

52.9

70.7

8.1

126.

9648

.778

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811

6.88

ALY

075

D81

.771

.111

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6.08

7779

9.8

184.

872

88.1

8.4

172.

866

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116

0.08

ALY

080

D90

.982

.711

.121

8.16

85.6

91.8

9.6

205.

4480

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2.1

8.2

192.

2474

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6.9

178.

08A

LY 0

90D

99.1

92.2

11.1

237.

8493

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2.3

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6887

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120

8.8

80.5

125.

66.

919

3.2

ALY

110

D11

3.7

108.

311

272.

8810

6.8

120.

19.

525

6.32

99.5

133.

28

238.

891

.814

7.7

6.8

220.

32A

LY 1

20D

126.

212

3.3

10.9

302.

8811

813

6.6

9.3

283.

210

9.4

151.

57.

926

2.56

100.

116

7.9

6.6

240.

24

LEAV

ING

CHIL

LED

WAT

ER T

EMP.

(LCW

T)

PER

FOR

MA

NC

E D

ATA

(Eng

lish

units

)

UN

ITSI

ZE

950 F

AM

BIE

NT

TEM

PER

ATU

RE

1050 F

AM

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NT

TEM

PER

ATU

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AM

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NT

TEM

PER

ATU

RE

1250 F

AM

BIE

NT

TEM

PER

ATU

RE

CAP.

(Ton

s)

LEG

END

:kW

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ompr

esso

r pow

er in

put

GPM

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allo

ns P

er M

inut

e

EER

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nerg

y E

ffici

ency

Rat

io

NO

TES:

1.P

acka

ged

chill

ers

are

rate

d w

ith A

HR

I sta

ndar

d 55

0/59

0.2.

Per

form

ance

dat

a ar

e ba

sed

on 1

00 F w

ater

rang

e in

eva

pora

tor.

3.R

atin

gs a

re b

ased

on

0.00

010

(hr-

ft2 -0 F

/Btu

) fou

ling

fact

or fo

r eva

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tor.

4.D

irect

inte

rpol

atio

n is

per

mis

sibl

e. D

o no

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rapo

late

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kW p

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t is

for c

ompr

esso

r onl

y.6.

EE

R f

or e

ntire

uni

t. R

efer

to e

lect

rical

dat

a fo

r fa

n kW

.

CO

MP.

kWEE

RW

ATER

FLO

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PM)

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(GPM

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ATER

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PM)

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(GPM

)

15

50 0 F

Page 18: ALY (R-410A) series.pmd

ALY

010

D31

9.2

2.8

1.24

29.2

10.3

2.4

1.16

26.7

11.8

1.9

1.06

23.9

13.5

1.6

0.95

ALY

015

D47

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81.

945

14.6

2.4

1.79

41.5

16.4

2.1

1.65

37.6

18.4

1.7

1.5

ALY

020

D59

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82.

3755

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42.

2351

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92.

0546

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61.

85A

LY 0

25D

74.9

22.8

2.8

2.98

7125

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42.

8365

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2.62

60.1

32.4

1.7

2.39

ALY

030

D85

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2.8

3.42

81.2

29.7

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3.23

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33.5

22.

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7A

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133

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84.

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54.

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41.8

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95.3

47.5

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3.8

ALY

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7.4

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95.

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48.4

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15.

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4.69

ALY

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6.2

45.2

36.

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49.9

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5.9

137.

256

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15.

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5.6

63.9

1.8

5A

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179

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2.9

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169.

260

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56.

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67.6

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D29

1.6

87.9

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11.6

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72.

110

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712

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D34

3.6

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52.

913

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92.

512

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301.

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7.9

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ALY

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D38

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230

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31.

712

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ALY

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D32

9.3

2.9

1.28

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10.4

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1.20

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21.

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5159

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1.6

1.95

ALY

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D79

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3.18

75.3

25.6

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12.

7763

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72.

54A

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92.5

27.5

33.

6887

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63.

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2.1

3.19

72.8

38.3

1.7

2.9

ALY

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2.4

33.9

2.9

4.88

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737

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64.

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7.3

42.2

2.2

4.27

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1.9

44.4

2.9

6.05

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55.

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2.6

54.7

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84.

83A

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66.

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56.8

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14A

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16.

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6.7

76.6

1.7

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3.7

67.9

2.9

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83A

LY 0

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979

2.9

10.8

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86.9

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97.8

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111

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1.7

8.73

ALY

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D30

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88.6

2.9

11.9

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110

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64A

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312

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631

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21.

712

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ALY

010

D33

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33.

01.

3231

10.4

2.5

1.23

28.5

11.9

2.1

1.14

25.7

13.6

1.7

1.02

ALY

015

D49

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91.

9846

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51.

8643

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11.

7239

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81.

57A

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65.8

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2.62

61.9

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12.

2551

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25.9

2.6

3.12

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2.2

2.89

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1.8

2.64

ALY

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23.

3376

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2.3

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ALY

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79.6

311

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311.

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98.5

2.6

11.6

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110.

12.

210

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112

3.5

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110

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104.

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339.

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5.2

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13.5

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212

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11.4

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9.8

316

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2.6

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3.8

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72.

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322.

216

5.4

1.8

12.8

5

16

LEG

END

:kW

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r pow

er in

put

LPS

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ters

Per

Sec

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CO

P-

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f Per

form

ance

NO

TES:

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acka

ged

chill

ers

are

rate

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I sta

ndar

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form

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dat

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0 C w

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atin

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ased

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Do

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it. R

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r fa

n kW

.

PER

FOR

MA

NC

E D

ATA

(Met

ric u

nits

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AVIN

GCH

ILLE

DW

ATER

TEM

P.(L

CWT)

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ITSI

ZE

350 C

AM

BIE

NT

TEM

PER

ATU

RE

400 C

AM

BIE

NT

TEM

PER

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RE

460 C

AM

BIE

NT

TEM

PER

ATU

RE

520 C

AM

BIE

NT

TEM

PER

ATU

RE

CAP.

(kW

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P.kW

CO

PW

ATER

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CAP.

(kW

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PW

ATER

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ATER

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W(L

PS)

CAP.

(kW

)C

OM

P.kW

CO

PW

ATER

FLO

W(L

PS)

5 0 C

4 0 C

6 0 C

Page 19: ALY (R-410A) series.pmd

ALY

010

D34

.19.

43.

01.

3632

10.5

2.6

1.28

29.2

122.

11.

1626

.413

.61.

71.

05A

LY 0

15D

5113

.52.

92.

0348

.214

.82.

61.

9244

.716

.62.

21.

7840

.818

.71.

81.

63A

LY 0

20D

67.9

18.1

3.1

2.7

63.7

20.2

2.7

2.54

58.7

23.1

2.2

2.34

52.8

26.4

1.7

2.11

ALY

025

D85

.523

.73.

13.

4180

.926

.22.

73.

2274

.629

.42.

22.

9768

.233

.11.

82.

72A

LY 0

30D

99.2

28.1

3.1

3.95

93.6

30.9

2.7

3.73

86.2

34.6

2.2

3.43

78.8

38.8

1.8

3.14

ALY

035

D13

1.2

34.6

3.1

5.23

124.

238

2.7

4.95

115

42.9

2.3

4.58

105.

948

.41.

94.

22A

LY 0

45D

162.

145

.23.

16.

4615

349

.62.

76.

0914

1.7

55.6

2.2

5.64

129.

862

.21.

95.

18A

LY 0

50D

172

46.4

3.2

6.85

162.

551

.22.

86.

4715

0.5

57.7

2.3

5.99

137.

965

1.9

5.50

ALY

060

D19

7.7

56.1

3.1

7.88

186.

461

.72.

77.

4217

2.3

69.2

2.2

6.86

157.

277

.61.

86.

27A

LY 0

75D

259.

669

.13.

110

.34

245.

575

.92.

79.

7822

8.3

85.5

2.3

9.09

209.

696

.71.

98.

36A

LY 0

80D

289.

580

.33

11.5

327

488

.32.

610

.91

253.

999

.22.

210

.11

233.

211

1.5

1.8

9.30

ALY

090

D32

1.1

90.1

312

.79

303.

598

.82.

712

.09

281.

711

0.9

2.2

11.2

225

8.5

124.

21.

910

.31

ALY

110

D37

0.4

105.

73.

114

.75

349.

611

6.1

2.7

13.9

332

3.2

130.

12.

212

.87

295.

114

5.6

1.8

11.7

7A

LY 1

20D

418.

512

13.

116

.67

395

132.

92.

715

.73

365.

114

8.9

2.2

14.5

433

2.4

166.

71.

813

.25

ALY

010

D35

.29.

53.

11.

4033

.110

.52.

71.

3230

.212

2.2

1.20

27.1

13.7

1.7

1.08

ALY

015

D52

.413

.63

2.09

49.6

14.9

2.7

1.98

45.7

16.7

2.2

1.82

41.9

18.7

1.9

1.67

ALY

020

D70

18.2

3.2

2.79

65.8

20.3

2.7

2.62

60.5

23.2

2.2

2.41

54.9

26.5

1.8

2.19

ALY

025

D88

.324

3.2

3.52

83.4

26.4

2.8

3.32

7729

.72.

33.

0770

.333

.31.

92.

8A

LY 0

30D

102.

428

.33.

24.

0896

.431

.12.

83.

8489

.334

.92.

33.

5681

.639

.11.

93.

25A

LY 0

35D

135.

434

.93.

25.

3912

838

.42.

85.

111

8.9

43.2

2.3

4.74

109.

448

.81.

94.

36A

LY 0

45D

167.

445

.63.

16.

6715

7.9

502.

76.

2914

6.3

562.

35.

8313

462

.61.

95.

34A

LY 0

50D

177.

346

.93.

37.

0616

7.8

51.7

2.8

6.68

155.

558

.12.

46.

1914

2.1

65.3

1.9

5.66

ALY

060

D20

3.6

56.6

3.2

8.11

192

62.2

2.8

7.65

177.

669

.72.

37.

0716

2.5

78.1

1.9

6.47

ALY

075

D26

869

.73.

210

.68

253.

676

.62.

810

.123

5.7

86.2

2.3

9.39

216.

797

.21.

98.

63A

LY 0

80D

299

81.1

3.1

11.9

128

2.4

89.1

2.7

11.2

526

2.4

100

2.3

10.4

524

0.9

112.

31.

99.

6A

LY 0

90D

332

90.9

3.1

13.2

231

4.1

99.9

2.7

12.5

129

1.6

111.

82.

311

.62

268

125.

11.

910

.68

ALY

110

D38

2.7

106.

83.

115

.24

361.

211

7.2

2.7

14.3

933

4.1

131.

22.

313

.31

305.

614

6.8

1.9

12.1

7A

LY 1

20D

431.

612

2.1

3.1

17.1

940

7.3

134.

12.

716

.22

376.

315

0.2

2.3

14.9

934

2.9

168

1.9

13.6

6A

LY 0

10D

35.9

9.5

3.1

1.43

33.8

10.6

2.7

1.35

30.6

122.

21.

2227

.413

.71.

81.

09A

LY 0

15D

55.6

13.8

3.2

2.21

52.4

15.1

2.8

2.09

48.5

16.9

2.3

1.93

44.7

192

1.78

ALY

020

D73

.518

.43.

32.

9368

.920

.42.

82.

7463

.323

.32.

32.

5257

26.6

1.9

2.27

ALY

025

D91

.824

.33.

33.

6686

.226

.72.

83.

4379

.529

.92.

43.

1772

.133

.51.

92.

87A

LY 0

30D

105.

928

.73.

34.

2299

.531

.42.

83.

9691

.835

.12.

43.

6683

.739

.31.

93.

33A

LY 0

35D

141.

735

.43.

35.

6413

438

.92.

95.

3412

4.2

43.7

2.4

4.95

114

49.2

24.

54A

LY 0

45D

175.

946

.23.

37.

0116

650

.72.

86.

6115

3.7

56.6

2.4

6.12

140.

763

.22

5.6

ALY

050

D18

6.8

47.6

3.4

7.44

176.

652

.42.

97.

0316

3.2

58.8

2.5

6.5

149.

165

.92

5.94

ALY

060

D21

3.8

57.5

3.3

8.52

201.

963

.12.

98.

0418

6.8

70.6

2.4

7.44

170.

978

.92

6.81

ALY

075

D28

8.8

71.3

3.3

11.5

274

78.3

2.9

10.9

125

588

2.5

10.1

623

4.6

992.

19.

34A

LY 0

80D

321.

882

.93.

312

.82

304.

991

2.9

12.1

528

3.5

102

2.4

11.2

926

1.3

114.

32

10.4

1A

LY 0

90D

350.

392

.33.

313

.95

331.

710

1.3

2.8

13.2

130

7.8

113.

32.

412

.26

283.

112

6.5

211

.28

ALY

110

D40

210

8.4

3.3

16.0

138

0.2

119

2.8

15.1

435

2.4

133.

12.

414

.04

322.

514

8.7

212

.85

ALY

120

D44

5.3

123.

43.

217

.74

419.

313

5.3

2.8

16.7

386.

215

1.3

2.3

15.3

835

116

9.1

1.9

13.9

8

17

LEG

END

:kW

-C

ompr

esso

r pow

er in

put

LPS

-Li

ters

Per

Sec

ond

CO

P-

Coe

ffici

ent o

f Per

form

ance

NO

TES:

1.P

acka

ged

chill

ers

are

rate

d w

ith A

HR

I sta

ndar

d 55

0/59

0.2.

Per

form

ance

dat

a ar

e ba

sed

on 6

0 C w

ater

rang

e in

eva

pora

tor.

3.R

atin

gs a

re b

ased

on

0.00

0018

(m2 -0 C

/W) f

oulin

g fa

ctor

for e

vapo

rato

r.4.

Dire

ct in

terp

olat

ion

is p

erm

issi

ble.

Do

not e

xtra

pola

te.

5.kW

pow

er in

put i

s fo

r com

pres

sor o

nly.

6.C

OP

for

entir

e un

it. R

efer

to e

lect

rical

dat

a fo

r fa

n kW

.

PER

FOR

MA

NC

E D

ATA

(Met

ric u

nits

)LE

AVIN

GCH

ILLE

DW

ATER

TEM

P.(L

CWT)

UN

ITSI

ZE

350 C

AM

BIE

NT

TEM

PER

ATU

RE

400 C

AM

BIE

NT

TEM

PER

ATU

RE

460 C

AM

BIE

NT

TEM

PER

ATU

RE

520 C

AM

BIE

NT

TEM

PER

ATU

RE

CAP.

(kW

)C

OM

P.kW

CO

PW

ATER

FLO

W(L

PS)

CAP.

(kW

)C

OM

P.kW

CO

PW

ATER

FLO

W(L

PS)

CAP.

(kW

)C

OM

P.kW

CO

PW

ATER

FLO

W(L

PS)

CAP.

(kW

)C

OM

P.kW

CO

PW

ATER

FLO

W(L

PS)

8 0 C

7 0 C

10 0 C

Page 20: ALY (R-410A) series.pmd

NO

TES:

1.M

ain

pow

er m

ust b

e su

pplie

d fro

m a

sin

gle

field

sup

plie

d an

d m

ount

ed fu

sed

disc

onne

cts,

usi

ng d

ual e

lem

ent t

ime

dela

y fu

se o

r circ

uit b

reak

er.

2.Th

e m

axim

um in

com

ing

wire

siz

e is

500

mcm

. O

n un

its h

avin

g M

CA

gre

ater

than

the

ampa

city

of 5

00 m

cm w

ire, t

he fa

ctor

y su

pplie

d po

wer

term

inal

blo

ck w

ill a

ccep

t tw

o pa

ralle

l fie

ld w

ires

per p

hase

.3.

The

com

pres

sor c

rank

case

hea

ters

mus

t be

ener

gize

d fo

r 12

hour

s be

fore

the

unit

is in

itial

ly s

tarte

d or

afte

r a p

rolo

nged

pow

er d

isco

nnec

tion.

4.A

ll fie

ld w

iring

mus

t be

in a

ccor

danc

e w

ith N

EC

and

loca

l sta

ndar

ds.

5.M

inim

um a

nd m

axim

um u

nit s

uppl

y vo

ltage

s ar

e sh

own

in th

e ta

bula

ted

data

abo

ve (s

ee a

lso

note

# 7

).6.

Neu

tral

line

requ

ired

on 3

80V

-3P

h-60

Hz

pow

er s

uppl

y on

ly.

7.Th

e ±1

0% v

olta

ge v

aria

tion

from

the

nom

inal

is a

llow

ed fo

r a s

hort

time

only

, not

per

man

ent.

LEG

END

:M

CA-

Min

imum

Circ

uit A

mpa

city

per

NE

C 4

30-2

4M

OCP

-M

axim

um O

ver C

urre

nt P

rote

ctio

nRL

A-

Rat

ed L

oad

Am

psLR

A-

Lock

ed R

otor

Am

psC

B-

Circ

uit B

reak

erMT

A-

Mus

t Trip

Am

psFL

A-

Full

Load

Am

psFC

A-

Tota

l Fan

Circ

uit A

mps

CR

AN

KC

ASE

HEA

TER

Tota

lW

atts

Volts

Tota

lAm

psCB (Qty

.)FC

ATo

tal

kWFL

A(e

ach)

Qty

.CB Po

les

LRA

(eac

h)RL

A(e

ach)

Qty

.CB Po

les

LRA

(eac

h)RL

A(e

ach)

220-

3-60

380-

3-60

460-

3-60

220-

3-60

380-

3-60

460-

3-60

220-

3-60

380-

3-60

460-

3-60

220-

3-60

380-

3-60

460-

3-60

220-

3-60

380-

3-60

460-

3-60

220-

3-60

380-

3-60

460-

3-60

220-

3-60

380-

3-60

460-

3-60

220-

3-60

380-

3-60

460-

3-60

220-

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380-

3-60

460-

3-60

220-

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380-

3-60

460-

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220-

3-60

380-

3-60

460-

3-60

220-

3-60

380-

3-60

460-

3-60

220-

3-60

380-

3-60

460-

3-60

220-

3-60

380-

3-60

460-

3-60

ALY0

10D

ALY0

15D

ALY0

20D

ALY0

25D

ALY0

30D

ALY0

35D

ALY0

45D

ALY0

50D

ALY0

60D

ALY0

75D

ALY0

80D

ALY0

90D

ALY1

10D

ALY1

20D

UN

ITSI

ZE

SUPP

LY V

OLT

AG

EC

OM

PRES

SOR

TYP

E-1

CO

MPR

ESSO

R T

YPE-

2C

ON

DEN

SER

FA

N M

OTO

RS

ELEC

TRIC

AL

DAT

A

MO

CP

MC

AM

ax.

Min

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omin

al(V

-Ph-

Hz)

198

342

414

198

342

414

198

342

414

198

342

414

198

342

414

198

342

414

198

342

414

198

342

414

198

342

414

198

342

414

198

342

414

198

342

414

198

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414

198

342

414

242

418

506

242

418

506

242

418

506

242

418

506

242

418

506

242

418

506

242

418

506

242

418

506

242

418

506

242

418

506

242

418

506

242

418

506

242

418

506

242

418

506

Qty

.Q

ty.

MTA

CBQ

ty.

MTA

CB

5710

01

40.3

239

364

10

00

00

01

6.2

1.90

6.2

122

090

0.41

3560

125

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53

401

00

00

00

13.

61.

903.

61

380

900.

2429

501

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125

332

10

00

00

01

4.1

2.10

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146

090

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51

62.5

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310

01

00

00

00

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220

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100

138

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63

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00

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00

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21

380

900.

2448

801

31.5

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10

00

00

02

4.1

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103

150

240

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93

642

00

00

00

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225

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21

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0.39

127

200

251

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03

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00

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00

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23.

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220

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0.82

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02

29.9

139

348

20

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1.09

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53

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0.52

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53

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00

00

08

4.1

16.8

032

.84

460

480

1.04

430

600

298

.660

53

158

22

79.1

505

312

72

86.

215

.20

49.6

422

054

02.

4524

735

02

56.7

353

391

22

45.5

290

373

28

3.6

15.2

028

.84

380

540

1.42

214

300

246

.927

23

752

237

.622

53

602

84.

116

.80

32.8

446

054

01.

1746

960

04

98.6

605

315

84

00

00

00

86.

215

.20

49.6

422

060

02.

7327

035

04

56.7

353

391

40

00

00

08

3.6

15.2

028

.84

380

600

1.58

232

300

446

.927

23

754

00

00

00

84.

116

.80

32.8

446

060

01.

3052

770

02

124.

759

93

200

22

98.6

605

315

82

86.

215

.20

49.6

422

060

02.

7331

240

02

75.5

358

312

12

256

.735

33

912

83.

615

.20

28.8

438

060

01.

5826

735

02

62.3

310

310

02

246

.927

23

752

84.

116

.80

32.8

446

060

01.

3058

080

04

124.

759

93

200

40

00

00

08

6.2

15.2

049

.64

220

600

2.73

350

450

475

.535

83

121

40

00

00

08

3.6

15.2

028

.84

380

600

1.58

298

400

462

.331

03

100

40

00

00

08

4.1

16.8

032

.84

460

600

1.30

18

Page 21: ALY (R-410A) series.pmd

WATER SIDE PRESSURE DROP

CURVE No. Maximum GPM MODEL No.ALY010DALY015DALY020DALY025DALY030DALY035DALY045D

1234567

29.343.358.573.586.5

110.5139

Minimum GPM15.623.131.239.246.158.974.1

CONVERSION FACTOR: GPM = 0.063 Liters per second.

Feet of water = 2.989 Kilo Pascal (kpa).

NOTE: If an application requires certain water flow rate outside these limits, please check with your nearest dealer/sales office.

19

CURVE No. Maximum GPM MODEL No.ALY050DALY060DALY075DALY080DALY090DALY110DALY120D

789

10111213

147173221

249.5278

321.6365

Minimum GPM78.492.3117.9133.1148.3171.5194.7

PRES

SUR

E D

RO

P (F

T. O

F W

ATE

R)

1

10 20

23

48

65

79

1060

3020

5040

7010

090

8020

0

FLOW RATE - GPM604030 50 9070 80 100 300200 400 500 600 15001000800700 900 1200

1 23 45 6 7 8 91011 1213

Page 22: ALY (R-410A) series.pmd

LIFTING POINTS

ELECTRICAL CONTROL BOX

ELECTRIC POWER INLET

WATER OUT

WATER IN

1826

275

1261

2285

FRONT VIEW

LIFTING POINTS

ELECTRICAL CONTROL BOX

ELECTRIC POWER INLET

WATER OUT

WATER IN

1826

275

1261

1523

ALY010D

ALY015D

DIMENSIONS

NOTE: 1. Cooler dimensions are subject to change without notice. Final dimensions will be provided upon order placement.2. All dimensions are in mm, unless otherwise specified.

20

Page 23: ALY (R-410A) series.pmd

LIFTING POINTS

ELECTRICAL CONTROL BOX

ELECTRIC POWER INLET

WATER OUT

WATER IN

1826

275

1261

2285

ALY020D & ALY025D

ALY030D

DIMENSIONS

21

NOTE: 1. Cooler dimensions are subject to change without notice. Final dimensions will be provided upon order placement.2. All dimensions are in mm, unless otherwise specified.

Page 24: ALY (R-410A) series.pmd

2916

2285

2534

2285

2285

ALY035D

ALY045D

DIMENSIONS

22

NOTE: 1. Cooler dimensions are subject to change without notice. Final dimensions will be provided upon order placement.2. All dimensions are in mm, unless otherwise specified.

Page 25: ALY (R-410A) series.pmd

2916

2285

ALY050D & ALY060D

ALY075D & ALY080D

DIMENSIONS

23

NOTE: 1. Cooler dimensions are subject to change without notice. Final dimensions will be provided upon order placement.2. All dimensions are in mm, unless otherwise specified.

Page 26: ALY (R-410A) series.pmd

ALY090D, ALY110D & ALY120DDIMENSIONS

24

NOTE: 1. Cooler dimensions are subject to change without notice. Final dimensions will be provided upon order placement.2. All dimensions are in mm, unless otherwise specified.

ELECTRIC POWER INLET

ELECTRICAL CONTROL BOX

Page 27: ALY (R-410A) series.pmd

COMP 1

COMPRESSOR LAYOUT

CONTROL BOX

FAN1

FAN LAYOUT

CONTROL BOX

COOLER

TYPICAL SCHEMATIC WIRING DIAGRAM(1 Compressor & 1 fan)

25

NOTE: 1. Refer to next page for legend, notes & wiring diagram for optional items. 2. Refer to unit control box (inside panel) for exact wiring diagram.

RE

FE

R T

O U

NIT

NA

ME

PLA

TE F

OR

PO

WE

R S

UP

PLY

Page 28: ALY (R-410A) series.pmd

LEGEND

B1/B2 ANALOG INPUTC1/C2 COMMONCB CIRCUIT BREAKERCOMP COMPRESSORCC COMPRESSOR CONTACTORCCA COMPRESSOR CONTACTOR AUXILIARYCWP CHILLED WATER PUMPD1/ID.. DIGITAL INPUT 1ETB EARTH TERMINAL BLOCKFLS FLOW SWITCHFM FAN MOTORFMC FAN MOTOR CONTACTORF FUSEG/GO POWER INPUTHPS HIGH PRESSURE SWITCHHVTB HIGH VOLTAGE TERMINAL BLOCKMB MASTER BOARDNO1/1O DIGITAL OUT 1S1 CONTROL SWITCHSB SLAVE BOARDSSPS SOLID STATE PROTECTION SYSTEMSH SHIELDTK CONDENSER FAN THERMAL CONTACTtLAN LOCAL NETWORK PORTTRANS TRANSFORMERUVM UNDER VOLTAGE MONITOR

TERMINAL BLOCK - - - FIELD WIRING

* FIELD SUPPLY

TYPICAL SCHEMATIC WIRING DIAGRAM(1 Compressor & 1 fan)

NOTES1. POWER SUPPLY, REFER TO UNIT NAMEPLATE.

2. FUSES TO BE DUAL ELEMENT TYPE. USE COPPERCONDUCTORS ONLY.

3. ALL FIELD WIRING TO COMPLY WITH LOCAL CODES.

4. FUSED DISCONNECT SWITCH OR CIRCUIT BREAKERTO BE PROVIDED BY END USER WITH RATING ASRECOMMENDED BY MANUFACTURER.

5. POWER MUST BE SUPPLIED TO CRANKCASE HEATERFOR MINIMUM OF 12 HOURS PRIOR TO SYSTEM STARTUP.IF POWER IS OFF 6 HOURS OR MORE, CRANKCASEHEATER MUST BE ON FOR 12 HOURS BEFOREOPERATING THE SYSTEM.

FAILURE TO FOLLOW THESE INSTRUCTIONS MAYRESULT IN COMPRESSOR DAMAGE.

6. IF SSPS IS NOT AVAILABLE, A JUMPER SHOULD BEUSED TO CONNECT DIRECTLY TO NEXT TERMINALAND SSPS SUPPLY SHOULD BE REMOVED & NOTNECESSARY TO CONNECT FROM ATB1B TO ATB2.

7. JUMPER 20 MUST BE INSTALLED ONLY IF THEOPTIONAL 3 POSITION SWITCH IS NOT INSTALLEDOR REQUIRED IN THE UNIT.

8. REFER TO INSTALLATION MANUAL FOR THE MAIN FIELDWIRING CONNECTION.

9. NEUTRAL LINE REQUIRED ON 380V-3Ph-60Hz POWERSUPPLY ONLY.

26

Page 29: ALY (R-410A) series.pmd

FLOW SWITCH

EXEN (RUN/STOP)

10FLS CWP *

RWT

LWT

RELAY M-8

RELAY M-10

230 VAC

PO

WER

IN

230VAC

RELAY M-9

RELAY M-7

RELAY M-6

RELAY M-4

RELAY M-5

RELAY M-2

RELAY M-3

RELAY M-1

MB

230VAC

GND DIRECT TO MTG PLATE

HPS2

THERMAL1

THERMAL3

FAN1

FAN2

FAN LAYOUT

CONTROL BOX

HPS1

FMC1

FMC2

FMC4

FMC3

THERMAL2

THERMAL4

FAN3

FAN4

SEE PUMP SAFETY CONNECTION (OPTIONAL)

SEE PUMP CONTACTOR COILCONNECTION (OPTIONAL)

EEV DRIVER 2

EEV DRIVER 1

EEVB2

EEVB1

SUCT 1 TEMP

SUCT1 PRESS

SUCT2 PRESS

SUCT 2 TEMP

TYPICAL SCHEMATIC WIRING DIAGRAM(2 Tandem compressors & 4 fans)

27

NOTE: 1. Refer to next page for legend, notes & wiring diagram for optional items. 2. Refer to unit control box (inside panel) for exact wiring diagram.

REFER TO UNITNAMEPLATE FORPOWER SUPPLY

Page 30: ALY (R-410A) series.pmd

GND

2

1

SUPRESSOR

AR1A-2A

TRANS2

EEVB162A

63A

2A

5A

GND DIRECT TO MTG PLATE

2B

63B

62B

AR2A-2A

EEVB2

5B

GND DIRECT TO MTG PLATEGND SUPRESSOR

EEVB1

EEVB2

RELAY M-10

LEGEND

B1/B2 ANALOG INPUTC1/C2 COMMONCB CIRCUIT BREAKERCOMP COMPRESSORCC COMPRESSOR CONTACTORCCA COMPRESSOR CONTACTOR AUXILIARYCWP CHILLED WATER PUMPD1/ID.. DIGITAL INPUT 1ETB EARTH TERMINAL BLOCKFLS FLOW SWITCHFM FAN MOTORFMC FAN MOTOR CONTACTORF FUSEG/GO POWER INPUTHPS HIGH PRESSURE SWITCHHVTB HIGH VOLTAGE TERMINAL BLOCKMB MASTER BOARDNO1/1O DIGITAL OUT 1S1 CONTROL SWITCHSB SLAVE BOARDSSPS SOLID STATE PROTECTION SYSTEMSH SHIELDTK CONDENSER FAN THERMAL CONTACTtLAN LOCAL NETWORK PORTTRANS TRANSFORMERUVM UNDER VOLTAGE MONITOR

TERMINAL BLOCK - - - FIELD WIRING

* FIELD SUPPLY

TYPICAL SCHEMATIC WIRING DIAGRAM(2 Tandem compressors & 4 fans)

NOTES1. POWER SUPPLY, REFER TO UNIT NAMEPLATE.

2. FUSES TO BE DUAL ELEMENT TYPE. USE COPPERCONDUCTORS ONLY.

3. ALL FIELD WIRING TO COMPLY WITH LOCAL CODES.

4. FUSED DISCONNECT SWITCH OR CIRCUIT BREAKERTO BE PROVIDED BY END USER WITH RATING ASRECOMMENDED BY MANUFACTURER.

5. POWER MUST BE SUPPLIED TO CRANKCASE HEATERFOR MINIMUM OF 12 HOURS PRIOR TO SYSTEM STARTUP.IF POWER IS OFF 6 HOURS OR MORE, CRANKCASEHEATER MUST BE ON FOR 12 HOURS BEFOREOPERATING THE SYSTEM.

FAILURE TO FOLLOW THESE INSTRUCTIONS MAYRESULT IN COMPRESSOR DAMAGE.

6. IF SSPS IS NOT AVAILABLE, A JUMPER SHOULD BEUSED TO CONNECT DIRECTLY TO NEXT TERMINAL ANDSSPS SUPPLY SHOULD BE REMOVED & NOTNECESSARY TO CONNECT FROM ATB1B TO ATB2.

7. JUMPER 20 MUST BE INSTALLED ONLY IF THEOPTIONAL 3 POSITION SWITCH IS NOT INSTALLED ORREQUIRED IN THE UNIT.

8. REFER TO INSTALLATION MANUAL FOR THE MAIN FIELDWIRING CONNECTION.

9. NEUTRAL LINE REQUIRED ON 380V-3Ph-60Hz POWERSUPPLY ONLY.

28

Page 31: ALY (R-410A) series.pmd

MICROPROCESSOR CONTROLLERCONTROLLER SEQUENCE OF OPERATIONFor initial start-up, the following condition must be met:

• All power supplied to the unit shall be continuously energized for 12 hours.

• All safety conditions are satisfied.

• Chilled water pump is running normal and chilled water flow switch contact is closed.

• Customer control or remote ON/OFF is switch to run mode, if any.

Staging ON and OFF sequence is accomplished based on controlled water temperature. The controller works to maintainthe required demand as constant as possible.

Below sequence of operation belongs to chiller unit with 2 scroll compressors. For 4, 6 & 8 scroll compressors chiller unitthe operation will be the same. Only that the capacity changes depend on the quantity of the compressor. For single scrollcompressor unit the capacity change to 100%.

COMPRESSOR STAGE - ON SEQUENCEIf the water temperature is above the temperature set point: The compressor with less running hours will start, and theunit is now at the 50% capacity. After such interval of time, and if the water temperature is still high compared to thetemperature set point, the second compressor will start. The unit now is at 100% capacity.

COMPRESSOR STAGE - OFF SEQUENCEAssume that the 2 compressors are running (capacity is at 100%). After such interval of time, if the water temperature isdecreases or below the temperature set point the compressor with more running hours will off. Now the unit is at 50%capacity. After such interval of time, if water temperature still below the set point temperature, then second compressorwill off.

FAN - ON/OFFThe fan will switch ON & OFF together with the compressor ON and OFF operation respectively.

29

Page 32: ALY (R-410A) series.pmd

APPLICATION GUIDELINESINTRODUCTIONThese guidelines should be considered when designing systems and their installation utilizing Zamil ALY series liquidchillers. Stable operation, performance and reliability of units is often dependent upon proper compliance with theserecommendations. When any application varies from these guidelines, it should be referred with Zamil Air Conditionersfor specific recommendations.

UNIT SELECTION/SIZINGUnit selection procedure and capacities are provided in this catalog for proper selection. The Zamil electronic selectionprogram may also be utilized for this purpose.

Over sizing chillers beyond a maximum limit of 5 – 10 % in order to assure adequate capacity or considering futureexpansions is not recommended. Over sizing adversely affects the operating efficiency due to erratic system operationand excessive compressor cycling which also results in reduced compressor life. It should be noted that, units operatemore efficiently when fully loaded rather than larger equipment operating at partial capacities. In addition, an oversizedunit is usually more costly to purchase, install and operate.

FOULING FACTOR AND WATER REQUIREMENTThe tabulated performance data provided in this catalog are based on a fouling factor of 0.00010 hr-ft2-0F/Btu (0.000018 m2-0C/W).As fouling factor is increased, unit capacity decreases and power input increases. For unit selection at other foulingfactors, apply appropriate correction factor from the table provided in this catalog.

These chillers are suitable for operation with well maintained water systems. Using unclean and untreated water mayresult in scale and deposit formation causing reduced cooler efficiency or heat transfer and corrosion or pitting leading topossible equipment damage.

EFFECT OF ALTITUDE ON UNIT CAPACITYThe tabulated performance data provided in this catalog are for use at or near sea level altitude application. At altitudessubstantially above sea level, the decreased air density will reduce condenser capacity and therefore unit capacity. For unitselection at these higher altitudes, apply appropriate correction factor from the table provided in this catalog.

HIGH AMBIENT CONSIDERATIONThese chillers are designed for year round operation over a range of ambient temperatures. As a standard, these chillerscan start and operate satisfactorily up to 1250F (520C) ambient temperature at rated nominal voltage.

WATER FLOW RATES AND COOLER PRESSURE DROPThe maximum and minimum water flow rates for all unit models and the pressure drop chart are provided in this catalog.The design water flow rate must be within this range. Design flow rates below the minimum limits will result in laminarflow causing freeze-up problems, stratification and poor control and flow rates beyond the maximum limits cause exces-sive pressure drop and severe tube erosion.

During unit operation, water flow rate must not vary more than ± 5% from the design flow rate. The water flow switch should becalibrated accordingly.

COOLER FLUID (WATER OR GLYCOL) TEMPERATURES RANGEUnit can start and pull down from 950F (350C) entering fluid temperature. The design leaving chilled fluid temperature(LCWT) range as mentioned earlier in the tabulated performance data is 40 to 500F. The design entering chilled fluidtemperature range is 50 to 600F. The design cooler temperature drop (ΔT) range is 8 to 150F.

The tabulated performance data provided in this catalog is based on a chilled water temperature drop of 100F. Units maybe operated at any desired temperature drop within the range of 8 to 150F as long as the temperature and flow limits are notviolated and appropriate correction factors are applied on the capacity and power input. The Zamil electronic selectionprogram can be very handy in selecting equipment at different temperature drops.

It should be noted that temperature drop outside the aforesaid range is not permitted as it is beyond the optimum range of controland could adversely affect the functioning of microprocessor controller and may also prove to be detrimental for the equipment.

30

Page 33: ALY (R-410A) series.pmd

COOLER FREEZE PROTECTIONIf the unit is located in an area where ambient temperatures fall below 320F (00C), cooler protection in the form of EthyleneGlycol Solution is required to protect the cooler and fluid piping from low ambient freeze-up. This glycol solution must beadded to the water system loop to bring down the freezing point of water to a difference of 150F (8.30C) below minimumoperating ambient temperature.

Using this glycol solution causes a variation in unit performance, flow rate and pressure drop, therefore appropriatecorrection factors from the aforementioned table in this catalog should be applied.

MULTIPLE CHILLER ARRANGEMENT OR PLANT CONFIGURATIONA multiple chiller system has two or more chillers connected by parallel or series piping to a common distribution system.Multiple chiller arrangements offer the advantage of operational flexibility, standby capacity and less disruptive mainte-nance. Also, they offer some standby capacity if repair work must be done on a chiller from a set of duty chillers. Startingin-rush current is reduced, as well as power costs at partial-load conditions.

A multiple chiller arrangement should be provided if the system load is greater than a single chiller capacity, standbycapability is desired, large temperature drop (greater than 150F) is desired or application calls for splitting the totalcapacity for better part load operation.

In designing a multiple chiller plant, units of same size should be preferred over different sizes to facilitate balanced waterflow. It is mandatory that cooler flow rates must be balanced to ensure proper flow to each chiller based on its respectivecapacity. As mentioned above, two basic multiple chiller systems are used: parallel and series chilled water flow.

Zamil recommends the parallel arrangement for design temperature drops (ΔT) up to 150F and the series arrangementbeyond that i.e., 16 to 200F. Complete design details on these parallel and series chilled water flow arrangements can befound in the ASHRAE handbooks and other design literature which should be referred by the designer in preparing hisdetailed designs.

PIPING ARRANGEMENTS AND PLANT LAYOUTOur chillers are suitable for incorporating in ‘Two Pipe’ single temperature systems or ‘Four Pipe’ independent loadsystems. The system piping circuit (load distribution circuit) should be basically parallel piping either Direct Return orReverse Return system with a good pumping arrangement.

The method of circuiting and pumping is a judgment decision by the designer. The designer must weigh the pros andcons of cost, nature of load and configuration of building, energy economics, flexibility, installation requirements andothers to determine the best arrangement for his project. In all cases, it must be ensured that the design water flow isconstantly maintained through the chillers at all stages of operation.

UNIT LOCATION AND INSTALLATIONThese chillers are designed for outdoor installation and can be installed at ground level or on a suitable rooftop location.In order to achieve good operation, performance and trouble-free service, it is essential that the proposed installationlocation and subsequent installing procedures meet the following requirements:

• The most important consideration while deciding upon the location of air cooled chillers is the provision for supply ofadequate ambient air to the condenser and removal of heated discharge air from the condenser. This is accomplishedby maintaining sufficient clearances which have been specified in this Catalog around the units and avoiding obstruc-tions in the condenser air discharge area to prevent the possibility of warm air circulation. Further, the condenser fansare propeller type and are not recommended for use with ductwork or other hindrances in the condenser air stream.Where these requirements are not complied, the supply or discharge airflow restrictions or warm air recirculation willcause higher condensing temperatures resulting in poor unit operation, higher power consumption and possible even-tual failure of equipment.

31

Page 34: ALY (R-410A) series.pmd

• The unit’s longitudinal axis should be parallel to the prevailing wind direction in order to ensure a balanced air flowthrough the condenser coils. Consideration should also be given to the possibility of down-drafts caused by adjacentbuildings, which may cause recirculation or uneven unit airflow. For locations where significant cross winds are ex-pected, an enclosure of solid or louver type is recommended to prevent wind turbulence interfering with the unit airflow.When units are installed in an enclosure, the enclosure height should not exceed the height of the unit.

• The location should be selected for minimum sun exposure and away from hot air sources, steam, exhaust vents andsources of airborne chemicals that could attack the condenser coils and steel parts of the unit. Avoid locations wherethe sound output and air discharge from the units may be objectionable.

• If the location is an area which is accessible to unauthorized persons, steps must be taken to prevent access to the unitby means of a protective fence. This will help to prevent the possibility of vandalism, accidental damage or possibleharm caused by unauthorized removal of panels or protective guards exposing rotating or high voltage components.

• The unit must be installed on a ONE-PIECE, FLAT and LEVELLED {within 1/2'' (13 mm) over its length and width} /CONCRETE BASE that extends fully to support the unit. The carrying or supporting structure should be capable ofhandling complete operating weight of the unit as given in the Physical Data tables in this Catalog.

• For ground level installations, it must be ensured that the concrete base is stable and does not settle or dislocate uponinstallation of the unit which can strain the refrigerant lines resulting in leaks and may also cause compressor oil returnproblems. It is recommended that the concrete slab is provided with appropriate footings. The slab should not beconnected to the main building foundation to avoid noise and vibration transmission.

• For rooftop installations, choose a place with adequate structural strength to safely support the entire operating weightof the unit. The unit shall be mounted on a concrete slab similar to ground installations. The roof must be reinforced forsupporting the individual point loads at the mounting isolator locations. It must be checked and ensured that theconcrete base is perfectly horizontal and levelled, especially if the roof has been pitched to aid in water removal. Itshould be determined prior to installation if any special treatment is required to assure a levelled installation else itcould lead to the above mentioned problems.

• Vibration isolators are necessary for installing these chillers in order to minimize the transmission of vibrations. Thetwo types of vibration isolators generally utilized for mounting these units are Neoprene Pads and Spring Isolators.Neoprene Pads are recommended for ground level normal installations jobs where vibration isolation is not critical andjob costs must be kept to a minimum. Spring Isolators are recommended for ground level installations which are noise-sensitive areas or exposed to wind loads and all roof top installations. For critical installations (extremely noise andvibration sensitive areas), follow the recommendations of structural and acoustical consultants.

• Based on the specific project requirements, choose the type of vibration isolators best suited for the application.Carefully select the vibration isolators’ models / configuration based on the respective point loads and place eachmount in its correct position following the Load Distribution Data and Mounting Drawings provided in this Catalog.Refer to the Schematic Mounting Layout drawings provided in the IOM manual of these chillers for further details in thisregard.

COOLER PIPING CONNECTIONSThe following pertinent guidelines are served to ensure satisfactory operation of the units. Failure to follow these recom-mendations may cause improper operation and loss of performance, damage to the unit and difficulty in servicing andmaintenance:

• Water piping must be connected correctly to the unit i.e., water must enter from the inlet connection on the cooler andleave from the outlet connection.

• A flow switch must be installed in the field piping at the outlet of the cooler (in horizontal piping) and wired back to theunit control panel using shielded cable. There should be a straight run of piping of at least five pipe diameters on eitherside of the flow switch. Paddle type flow switches can be obtained from Zamil which are supplied as optional items.

• The chilled water pump(s) installed in the piping system should discharge directly into the unit cooler. The pump(s)may be controlled external to the unit - but an interlock must be wired to the unit control panel (as shown in the wiringdiagram) so that the unit can start only upon proof of pump operation.

32

Page 35: ALY (R-410A) series.pmd

• Flexible connections suitably selected for the fluid and pressure involved should be provided as mandatory in order tominimize transmission of vibrations to the piping / building as some movement of the unit can be expected duringnormal operation. The piping and fittings must be separately supported to prevent any loading on the cooler.

• The cooler must be protected by a strainer, preferably of 20 mesh, fitted as close as possible to the liquid inlet connec-tion, and provided with a means of local isolation.

• Thermometer and pressure gauge connections should be provided on the inlet and outlet connections of each cooler.Pressure gauges are recommended to check the water pressure before and after the cooler and to determine if anyvariations occur in the cooler and system. When installing pressure taps to measure the amount of pressure dropacross the water side of the cooler, the taps should be located in the water piping a minimum of 24 inches downstreamfrom any connection (flange etc.) but as near to the cooler as possible.

• Drain and air vent connections should be provided at all low and high points in the piping system to permit completedrainage of the cooler and piping as well as to vent any air in the pipes. Hand shut-off valves are recommended for usein all lines to facilitate servicing.

• The system water piping must be flushed thoroughly before connecting to the unit cooler. The cooler must not beexposed to flushing velocities or debris released during flushing. It is recommended that a suitably sized bypass andvalve arrangement is installed to allow flushing of the piping system. The bypass can be used during maintenance toisolate the cooler without disrupting flow to other units.

• The following is a suggested piping arrangement at the chiller for single unit installations. For multiple chiller installa-tions, each unit should be piped as shown:

33

OUT

IN

Isolating Valve - Normally Open

Isolating Valve - Normally Closed

Balancing Valve

Flow meter

Strainer

Pressure tapping

Flow Switch

Connection (flanged/Victaulic/MPT)

Pipe work

Flexible connection

Page 36: ALY (R-410A) series.pmd

CHILLED FLUID VOLUME REQUIREMENTThe volume of water in a piping system loop is critical to the smooth and proper operation of a chilled water system. Ifsufficient volume of water is not there in the system, the temperature control can be lost resulting in erratic systemoperation and excessive compressor cycling. Therefore, to prevent this effect of a ‘Short Water Loop’ ensure that totalvolume of water in the piping system loop equals or exceeds 3 Gallons per Nominal Ton of cooling capacity for standardair conditioning applications and 6 Gallons per Nominal Ton of cooling capacity for process cooling jobs where accuracyis vital and applications requiring operation at very low ambient temperatures and low loading conditions.

For example, chiller model ALY080 operating with a design water flow rate of 180 GPM for a standard air conditioningapplication would require 80 (Nom. Cap.) x 3 = 240 Gallons of water in the piping system loop.

To achieve the aforementioned water volume requirements, it may be necessary to install a tank in the piping system loopto increase the volume of water in the system and therefore, reduce the rate of change of return water temperature. Thistank should be provided on the return water side to the chiller and the tank should be baffled to ensure that there is nostratification and the entering stream thoroughly mixes with the tank water. See recommended tank design schematicsbelow:

34

TANK SCHEMATIC

Page 37: ALY (R-410A) series.pmd

LIFT

ATTENTION TO RIGGERSHook rigging sling thru holes on the lifting plates, as shown below.Lifting plates or holes in base rail are centered around the unit center of gravity.Center of gravity is not unit center line.Ensure center of gravity aligns with the main lifting point before lifting.Use spreader bar when rigging, to prevent the slings from damaging the unit.

CAUTIONAll panels should be in place when rigging.Care must be taken to avoid damage to the coils during handling.Insert packing material between coils & slings as necessary.

RIGGING INSTRUCTIONS

MODELS: ALY010D

MODELS: ALY075D - ALY120D

35

MODELS: ALY015D - ALY030D

MODELS: ALY035D - ALY060D

Page 38: ALY (R-410A) series.pmd

1500

1500

2000

WALL

1500

1500

INSTALLATION CLEARANCE

FIGURE - 2CORNER WALL

NOTE: 1. All dimensions are in mm.2. Pit installations are not recommended. Re-circulation of hot condenser air in combination with surface air

turbulence can not be predicted, hot air re-circulation will severely affect unit efficiency (EER) and can causehigh pressure or fan motor temperature trips.

FIGURE - 1STRAIGHT WALL

36

Page 39: ALY (R-410A) series.pmd

NOTE: All dimensions are in mm. Tolerance: ±2mm.

MOUNTING LOCATIONMODELS: ALY010D

37

MODELS: ALY015D - ALY030D

MODELS: ALY035D - ALY060D

MODELS: ALY075D - ALY120D

Page 40: ALY (R-410A) series.pmd

LOAD DISTRIBUTION (kg.), ALUMINUM FINS CONDENSER COILS (12FPI)

38

MODEL No. R1 R2 R3 R4 R5 R6 R7 R8

ALY010D 157 176 157 176 - - - -

ALY015D 212 206 183 177 - - - -

ALY020D 249 243 197 191 - - - -

ALY025D 271 266 213 208 - - - -

ALY030D 282 277 224 218 - - - -

ALY035D 488 475 371 358 - - - -

ALY045D 530 518 397 385 - - - -

ALY050D 523 510 410 398 - - - -

ALY060D 529 517 413 401 - - - -

ALY075D 507 458 454 436 389 340 336 318

ALY080D 519 470 467 448 393 345 342 323

ALY090D 562 519 518 497 429 386 385 364

ALY110D 571 525 523 503 429 384 381 362

ALY120D 594 549 547 527 444 399 397 377

LOAD DISTRIBUTION (kg.), COPPER FINS CONDENSER COILS (12FPI)

R3

R1

R4

R2

R6

R2

R5

R1

R7 R8

R3 R4

MODEL No. R1 R2 R3 R4 R5 R6 R7 R8

ALY010D 167 186 167 186 - - - -

ALY015D 228 222 199 193 - - - -

ALY020D 273 267 222 216 - - - -

ALY025D 306 301 249 243 - - - -

ALY030D 324 319 266 261 - - - -

ALY035D 537 524 420 406 - - - -

ALY045D 589 577 456 444 - - - -

ALY050D 608 596 496 483 - - - -

ALY060D 614 602 499 487 - - - -

ALY075D 556 506 503 484 438 389 385 367

ALY080D 568 519 516 497 442 394 391 372

ALY090D 621 578 577 556 488 445 444 423

ALY110D 643 597 595 575 501 456 453 434

ALY120D 679 634 632 612 528 484 482 462

Page 41: ALY (R-410A) series.pmd

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