mcquay type k catalog 1302 - air distributors · catalog 1302 / page 3 of 32 heavy duty...

L I S T E D ®

McQuay® Type K Catalog 1302Incremental™ Room Conditioner with R-410A Refrigerant

Engineered for flexibility and performance™

Catalog 1302 / of 32

Agency Approval..................................................................... 2

Nomenclature ......................................................................... 3

Standard Features .................................................................. 4

Design Features .................................................................. 6-9

Performance Data .................................................................. 9

Cooling Capacities at Nonstandard Conditions ................. 9-10

Heating Capacities at Nonstandard Conditions .....................11

Dimensional Data (Sizes 007- 019) ...................................... 12 Units with Electric Heat (Sizes 007-012) ....................... 12 Units with Hydronic Heat (Sizes 007-012)..................... 13 Short Control Box .......................................................... 13 Long Control Box........................................................... 13

Suggested Piping Arrangements .......................................... 14

Units with Electric Heat (Size 019) ....................................... 15

Units with Hydronic Heat (Size 019) ..................................... 15

Wall Box and Room Cabinet Dimensions ............................. 16

Outdoor Louver Dimensions ................................................. 16

Agency ApprovalMcQuay® Type K™ Incremental™ Packaged Terminal Room Conditioners are tested and rated in accordance with Air Conditioning and Refrigeration Institute (ARI) Standards 310 and 380. McQuay Type K Incremental Packaged Terminal

“Type K” is a registered trademark of McQuay International.© 2010 McQuay International. All rights reserved throughout the world.

The information contained herein supersedes and replaces previous information published by McQuay International and/or its predecessor companies. Illustrations cover the general appearance of McQuay products at the time of publication. McQuay International also reserves the right to make changes in design specifications, construction and materials at any time and without notice.

Table of Contents

Room Conditioners are listed by Underwriters Laboratories Inc. and the Canadian Standards Association as complying with nationally recognized safety standards for packaged terminal air conditioners and heat pumps.

Typical Wiring Diagrams .................................................. 17-25

Standard Chassis w/Elect Heat & MCO Controls (Sizes 007–012) .............................................................17 Standard Chassis w/Elect Heat & MCO Controls (Size 019) .......................................................................18 Standard Chassis w/Hot Water Heat & MCO Controls (Sizes 007–012) .............................................................19 Standard Chassis w/Hot Water Heat & MCO Controls (Size 019) .......................................................................20 Standard Chassis w/Steam Heat & MCO Controls (Sizes 007–012) .............................................................21 Standard Chassis w/ Steam Heat & MCO Controls (Size 019) .......................................................................22 Standard Chassis w/ Electric Heat & 24V Wall Stat (Sizes 007–012) .............................................................23 Standard Chassis w/Elect Heat & 24V Wall Stat (Sizes 007–012) .............................................................24 Standard Chassis w/Steam Heat & 24V Wall Stat (Sizes 007–012) ............................................................ 25

Remote Mounted Thermostats (Sizes 007-012) ................... 26

Energy Saving Options ......................................................... 27 Guest Room Control (GRC) .......................................... 27 Night Setback Control (NSB)......................................... 29 Outdoor Air Dampers..................................................... 27

Engineering Guide Specifications.................................... 28-29

L I S T E D ®


Heavy Duty Construction for Durability and Quiet Operation

Model Nomenclature

Exceptional Quality in Design and ConstructionMcQuay® International has been building quality products for the air conditioning market since 1921. McQuay Type K Incre-mental™ Room Conditioners were first introduced in 1958 under the Remington brand name. The Incremental system was the first through-the-wall, self-contained heating and air condition-ing system. It is designed to provide on-demand, zoned com-fort control for multi-roomed buildings such as hotels, motels, hospitals, nursing homes, apartments, dormitories and offices.

Product Style1= 1st Style Change

SKU A = StockB = Standard DeliveryC = Extended Lead time

Color I = Antique Ivory

Power Connection A = Junction Box

Return Air/Outdoor Air 14 = Bottom

DischargeAR = Flat Top

P KES 2 007 C Z 41 Z 12 AR 14 A I C 1

Product CategoryP = PTAC

Product Identifier KES = Type K, Cool Chassis OnlyKEI = Type K Cool Chassis Only, IAQKEC = Type K Cool Chassis Only, Corrosion ProtectionKHS = Type K Heat Section Only

Design Series 1 = A design2 = B design

Nominal Capacity - Btuh007 = 7000009 = 9000012 = 12000019 = 19000

VoltageA = 115-60-1C = 208-60-1G = 230-60-1J = 277/265-60-1S = 208-115-60-1R = 265-115-60-1

Coil Options Z = None

Heating Options35 = 2.5 kW nominal41 = 3.5 kW nominal44 = 4.0 kW nominal48 = 5.0 kW nominal50 = 7.7 kW nominal62 = Hydronic - Normally Open Valve (Hot Water) 63 = Hydronic - Normally Closed Valve (Steam)

Hand OrientationA = Same Hand LeftB = Same Hand RightN = LH Supply / RH ReturnP = RH Supply / LH ReturnZ = Not Applicable

Model

Controls12 = Unit Mounted Manual Changeover (MCO)24 = Unit Mounted Manual Changeover w/Night Setback (NSB)27 = 24V Wall T'stat w/Guest Room Control (GRC) & Night Setback (NSB)32 = 24V Wall T'stat w/Night Setback(NSB)

NOTE: Availability of voltages, heating options, and controls may vary amongst unit sizes. Consult your McQuay representative.

Today, McQuay Type K Incremental Room Conditioners continue to set the industry standard for quality. Heavy duty construc-tion, premium engineering, carefully selected components and the highest manufacturing standards assure a quality product. McQuay quality offers you a durable yet aesthetic unit that will provide years of quiet trouble-free performance. For exceptional quality in design and construction, turn to McQuay Type K Incre-mental Room Conditioners.


Outdoor LouverHeavy-duty, architectural extruded alu-minum to resist weathering

Built With Quality And Long lasting Standard Features

Wall SleeveHeavy-gauge steel with powder paint coating provides maximum scratch and dent resistance. Minimizes vibration for quieter operation

Motorized Outside Air DamperOpens when unit is operating to bring in outside air for improved indoor air quality (IAQ). Closes when unit is idle to prevent drafts.

Heating SectionOption for electric resistance or hydronic (steam or hot water) heat.

Centrifugal FansQuieter and able to overcome more external static pressure than propel-ler fans. Allows more flexible options for architectural louvers or special condenser air treatments

Heavy-duty GrilleFour-way adjustment allows air to be directed where it is needed.

Room CabinetHeavy-gauge steel with powder paint coating provides maximum scratch and dent resistance and minimizes vibration for quieter operation

Adjustable KickplateAdjusts up or down to accommodate new floor coverings

Electro-mechanical ControlsReliable and easy to operate. Easy to read with color coding and raised lettering for the visually impaired.

The McQuay® Type K™ Room Air Conditioner is one of the oldest Incremental™packaged terminal designs in the in-dustry. These units have been in production since 1958 and many of the original units are still in operation today. McQuay

International has a policy of continuous product research and improvement. This new vintage of Type K units combines the latest available technology with the long-standing quality features that has made the Type K unit famous.

Easy-to-read Control OverlayMade of tough polycarbonate mate-rial with color impregnated function indicators that won't scratch, peel or fade. Easy to read with color coding and raised lettering for the visually impaired.


ChassisThe concept of individualized room conditioning began many years ago with the Type K conditioner. Over the years this design has become the benchmark for quality and reliability. Continual research and product improvement has allowed McQuay to re-main the leader in the sectionalized unit market. Recent design changes have further enhanced the efficiency and durability of the Type K chassis. Many important features have been developed. Those features relevant to this design change are listed below.

Figure 3. Chassis

CompressorThe power plant for the Type K is a high efficiency rotary com-pressor. It has a proven track record of efficiency and reliability to insure low cost, and continuous service for many years. In addition to its high efficiency, this compressor is protected against thermal overload and is precision balanced for quiet operation.

Figure 4. Compressor

Heat Transfer SurfaceAn advanced coil design is employed in all Type K units. The copper tubes have an internal rifled surface to increase the heat transfer capabilities of the refrigerant. Aluminum fins are mechani-cally bonded to the copper tubes to insure positive heat transfer. The fins are lanced to increase the air turbulence making the coil extremely efficient.

Heavy-Duty ConstructionThe Type K cooling chassis is constructed of heavy-gauge steel for unsurpassed durability. It is insulated with a waterproof material to prevent sweating. The dense insulation, combined with heavy-gauge steel, results in a unit with very low sound levels. The design of the plug-in device connections allows for quick and easy power disconnection without the use of tools. A con-venient amp connector is used to transfer power to the cooling chassis from the control box. The amp connector eliminates hard-wired connections that hinder chassis removal for scheduled maintenance. All unit sizes utilize the same amp connector to facilitate interchangeability of spare chassis.

Design FeaturesHigh Efficiency Condensing SectionThe outdoor condenser section uses a reliable PSC motor to drive an efficient centrifugal fan. Besides being quiet, the centrifugal fan is used to dispose of unwanted condensate generated during the cooling cycle. Condensate draining from the evaporator coil is atomized and entrained by the condenser blower airstream, re-evaporated on the hot condenser coil where it escapes to the outside as vapor. No slinger rings are used and the condensate never comes in contact with the outdoor blower wheel(s). Re-evaporation also lowers condenser temperature and pressure to increase overall cooling efficiency.

Figure 5. Condensate Disposal

Outside Air Damper ControlA motorized outside air damper is standard on all Type K equipment. A toggle switch is located on the cooling chassis to provide control of the damper. The damper can be set to either of two positions: automatic or closed. In the automatic position, the damper will open whenever the indoor fan is energized, except during night setback when it remains closed. In the closed position, the damper will remain closed at all times. The toggle switch is concealed behind the front panel to prevent unauthorized tampering.

ControlsThe brains to operate the Type K unit are in the control box. The control box is a separate component that is shipped with the heat section. A plug-in harness is provided for quick connection to the cooling chassis and a receptacle for connection to the heat section. The control box is factory overlaid with a tough, poly-carbonate membrane to preserve its appearance for many years. See Figures 6 and 7. Color-coded push buttons and large, raised function indicators improve readability for the visually impaired.

Figure 6. Control Overlay, sizes 007–012

Figure 7. Control Overlay, size 019


Heat SectionThere are three types of heat sections available for the Type K units: hot water, steam, and electric resistance. Like the cooling chassis, these sections are built to last. There are many unique features of the Type K heating section that have contributed to its popularity. The heat section is independent of the cooling chassis. Unique features of the Type K heat section are listed below.

• Quiet Operation Large forward curved fans are used on the indoor side to

provide efficient comfort conditioning with low sound levels. The blow-through design and heavy-gauge sheet metal pro-vide a high degree of attenuation not found in draw-through designs.

• High Efficiency Motors High efficiency, low sound producing PSC motors are utilized

by Type K units. All motors employ extended lube lines for periodic lubrication during scheduled maintenance.

• Factory Installed Valve (Sizes 007 - 012 Only) Hot water and steam heat sections are furnished with a factory

installed valve. Normally open, 2-way line voltage valves are supplied for hot water coils and normally closed 2-way line voltage valves are supplied on steam valves. On size 019, valves are furnished but not installed.

Figure 9. Short Control Box (sizes 007–012 shown)

Figure 10. Electric Heat Section

Figure 11. Hydronic Heat Section

Individual Room ConditioningThe concept of individualized room conditioning began many years ago with the Type K conditioner. Over the years this design has become the benchmark for quality and reliability. Continual research and product improvement has allowed McQuay to re-main the leader in the sectionalized unit market. Recent design changes have further enhanced the efficiency and durability of the Type K chassis. Many important features have been developed. Those features relevant to this design change are listed below.

• “Fan” Option (Sizes 007 - 012) A “fan only” function is provided to enable fan operation for

improved circulation and increased air filtration. The dual speed fan is controlled by a unit mounted fan speed rocker switch for user convenience.

• Remote Control (Sizes 007 - 012 Only) The Type K unit can be connected to a wall thermostat for

remote control operation. A variety of thermostats are compat-ible with this unit including many programmable varieties.

• Multiple Unit Control (Sizes 007 - 012 Only) Large conference rooms and hallways can be conditioned by

many units using a single thermostat. One unit is designated as a control unit and up to seven units can be connected to the control unit for synchronized operation. Any unit can be designated as the control unit with only minor field wir-ing modifications to make the other units into the controlled units.

• Constant/Cycle Fan Switch (Sizes 007 - 012 Only) A constant/cycle fan switch is provided in the Type K unit

(sizes 007–012) allowing the fan to run continuously or cycle with the thermostat. This switch is located on the control box and is concealed behind the front panel to prevent unauthor-ized tampering. When the switch is placed in the “cycle” mode, the indoor fan will energize when there is a call for heating, cooling, or fan. Placed in the “constant” mode, the fan will run continuously. Constant fan offers better air circulation and improved fan filtration compared with the cycle option. The large unit, size 019, is only available with constant fan.

Figure 8. Long Control Box (sizes 007–012 shown)


Wall BoxesThe Type K wall box is made from heavy-gauge steel and coated with a tough epoxy powdered paint for corrosion protection. The wall box is designed to be placed into the wall during construc-tion to assure a snug fit. The standard wall box can accommodate a wall depth of 13⅝'' without modifications. It can be easily adapted to deeper walls with minor factory modifications. Wall box/sleeve extensions are available for field installation through your McQuay sales representative. The dimensions of the wall box have not changed since the unit was originally designed in 1958. Therefore, if the existing wall box is in good condition, the old chassis or heat section can be easily replaced without additional wall modifications. Consequently, the unit can be replaced to provide high efficiency operation with minimal disruption or downtime.

Figure 14. Wall Box

Room CabinetsThe room cabinet is designed to complement any room decor. The heavy-gauge steel is coated with an attractive appliance grade powder paint which is then oven baked for durability. An adjustable kickplate is provided to accommodate various wall opening locations. The standard adjustment is +/-1". The room cabinet is designed to completely encompass the unit and conceal any piping or electrical connections from the room occupant. The front panel is removable for service access of filters, valves or electrical connections. Hidden latches are supplied to prevent unauthorized personnel from opening the front panel. On sizes 007-012 the discharge grille of the room cabinet is equipped with individual four-way adjustable steel grilles. This feature allows the owner to force the air in various directions to prevent stagnation. An extruded aluminum discharge grille is standard on the large unit 019 and optional for sizes 007–012. This grille is available to further enhance the unit's appear-ance. The Type K room cabinet is factory furnished in a variety of depths to accommodate every wall thickness. The entire cabinet is powder coated with an epoxy Antique Ivory finish and comes complete with a handsome Oxford Brown reveal around the perimeter for accent.

Figure 12. Cabinet

Figure 13. Extruded Aluminum Discharge Grilles

FiltrationThe filter is a permanent, cleanable wire mesh filter that is designed to provide superior dust collecting abilities.


Outdoor LouversThe standard louver is a one-piece, extruded architectural alu-minum type with a natural finish. Louvers by others are acceptable as long as they meet fac-tory specifications. They must have a minimum free area of 70% or a pressure drop not exceeding 0.05 in. w.g. at 300 fpm face velocity, and a blade design that will not cause recirculation of condenser air. Free area is defined by ASHRAE as the minimum area of the openings in an air inlet or outlet through which air can pass. Application of special louvers or building facade treatment that may affect normal operation of the unit, or restrict free air discharge of condenser airflow, should be referred to the Application Engineering Department for evaluation. A louver design that restricts the passage of condenser air or causes condenser air to be recirculated will dramatically alter the perfor-mance of the unit. Unit capacity and efficiency may be decreased and fan motor and compressor life may be shortened. If the louver does not meet the above outlined requirements or is only marginally acceptable, a drawing should be sent to the Incremental Application Engineering Department for evaluation. If acceptance still cannot be determined by the drawing, then a sample of the proposed louver should be sent to McQuay for testing and certification. The sample sent for testing must match the wall opening for the unit selected.

Sample Calculation:

XFree Area % = Y x 100

Where: X = 1.125 Y = 2.50

1.125Free Area % = 1.50 x 100 = 75%

Figure 16. Architectural Louver

Figure 15. Louver Designs

Typical Louver DesignFigure 15 shows some typical louver designs. The “X” dimension represents the narrowest dimension through which air must pass. The “Y” dimension represents the increment of rise between the blades. To calculate the percentages of free area, divide dimen-sion “X” by dimension “Y”.


Performance Data

O.D. I.D. DB I.D. WB Total Capacity Sensible Total Temp. Temp. Temp. Btuh Capacity Btuh Watts

70

80

90

70

80

90

70

80

90

70

80

90

6167616773616773616761677361677361676167736167736167616773616773

73508290747081209170833083408970697078907160771087007990800085006600748068407300825076507660807058406640619064607320694069507140

75

85

95

115

Cooling Capacities at Nonstandard ConditionsSize 007

49203500713057904380795079606730476033506830564042207630764066004590320065305500408073007310647043002900591052203770662066306120

612590645623601667667645678656722700667744744722744733787777744809809798886875930919908963963963


70

80

90

70

80

90

70

80

90

70

80

90

6167616773616773616761677361677361676167736167736167616773616773

9560108009720

10570119301084010850116809080

102609310

10040113301040010420110608590973089109500

1074099609970

1050076108640805084009520903090509300

75

85

95

115

Size 009

53703820777063204770867086807340519036607450615046108320833072005010349071306000445079707980706047003160644056904110723072406680

841811886856826916916886931901991961916102110219911021100610821067102111121112109712171202127712621247132213221322

Notes: Based on ASHRAE and ARI test conditions of 95°F DB/75°F WB outdoors, 80°F DB/67°F WB inside. Includes fan motor. Based on 200°F EWT, 180°F LWT; 2 psig steam – 65°F EAT. Tested and rated in accordance with ARI Standards 310 and 380.

Unit Size 007 009 012 019 Btuh 7300 9500 11600 18700 Cooling Watts 770 1060 1380 2300 EER (Btuh/Watt) 9.4 8.9 8.4 8.1 Airflow (CFM) High/Low Speed 290/210 290/210 290/210 530/470 Ventilation cfm 70 70 70 135 Voltage 115 208 230 265 208 230 265 208 230 265 208 230 “L” Amps – – – – 20.2 18.3 15.8 20.2 18.3 15.8 32.7 31.7 Heater Watts – – – – 4200 4200 4200 4200 4200 4200 6800 7300 Electric Heaters “M” Amps – 16.3 13.9 12.1 16.3 13.9 12.1 16.3 13.9 12.1 24.5 23.9 Heater Watts – 3400 3200 3200 3400 3200 3200 3400 3200 3200 5100 5500 “S” Amps – 12.5 10.4 9.8 12.5 10.4 9.8 12.5 10.4 9.8 – – Heater Watts – 2600 2400 2600 2600 2400 2600 2600 2400 2600 – – Hydronic Heat Hot Water 15,500 15,500 15,500 16,500 (Btuh) Steam 19,200 19,200 19,200 23,500 “L” Heater – – – – 25.7 23.3 20.1 25.7 23.3 20.1 41.6 40.4 Minimum Circuit “M” Heater – 20.9 17.8 15.4 20.9 17.8 15.4 20.9 17.8 15.4 31.4 30.6 Ampacity “S” Heater – 16.1 13.5 12.6 16.1 13.5 12.6 16.1 13.5 12.6 – – Hydronic 10.0 4.9 4.9 4.3 7.5 7.5 5.2 9.0 9.0 7.2 13.9 13.9

Time Delay Fuse, “L” Heater – – – – 30 25 20 30 25 20 45 45 or if under 250V,

“M” Heater – 25 20 20 25 20 20 25 20 20 35 35

Type HACR “S” Heater – 20 15 15 20 15 15 20 15 15 – –

Hydronic 15 15 15 15 15 15 15 15 15 15 20 20



70

80

90

70

80

90

70

80

90

70

80

90

6167616773616773616761677361677361676167736167736167616773616773

11680131801187012910145701324013250142601108012530113701226013830127101272013510104801189010880116001312012160121801283092901055098401026011630110301105011360

75

85

95

115

Cooling Capacities at Nonstandard Conditions

Size 012

671047809720790059701084010850917064904570931076905760104101042090106260436089107500556099609970882058703950805071205140903090508350

10891050114711081069118611861147120511671283124411861322132212831322130314001381132214391439141915751556165316331614171117111711


70

80

90

70

80

90

70

80

90

70

80

90

6167616773616773616761677361677361676167736167736167616773616773

1883021260191402082023490213402137022990178702021018340197702230020490205102178016900191601754018700211501960019630206801498017020158601655018750177901781018310

75

85

95

115

Size 019

111007910

16070130709870

179201795015170107307560

15400127209530

172101723014890103607210

14730124009200

16470164901459097106540

13320117708510

149401496013810

18211756191818531788198319831918201619512146208119832211221121462211217823412309221124062406237426342601276427312699286128612861


Heating Capacities at Nonstandard ConditionsThe hydronic coil can be used with either hot water or steam. To determine the correction factor at nonstandard conditions us-ing hot water, use Figure 17. Follow the known flow rate to the corresponding EWT curve and read to the left to determine the heating correction factor. Apply this percentage to the standard ratings shown on page 9.

Figure 17. Hot Water Heating Correction Factor Curve

For conditions at temperatures other than 65ºF, determine the correction factor using Figure 18. From a known entering air temperature, follow up to the line and then go left to determine the correct percentage. Apply this percentage to Figure 17 (when using hot water) before plotting the heating correction factor.

Figure 18. Heating Capacity Correction Factor Curve

For ratings at nonstandard conditions using steam, refer to Figure 19. Follow the known steam pressure to the curve cor-responding to the known entering air temperature. Read down to determine the correction factor. Multiply this number by the standard rating found on page 9 to determine the rating at non-standard conditions.

Figure 19. Steam Heating Correction Factors

To determine the water pressure drop (WPD) at nonstandard flow rates, enter known gpm on Figure 20. Follow to conditioner line and read left for appropriate WPD. To find the WPD of the valve, repeat procedure. Add the WPD of the valve and the WPD of the conditioner to get the total.

Figure 20. Water Pressure Drop Curve

Btu Conversion FactorFor Steam

Rating Point2 psig – 65ºF Entering Air

To use curve:

1. From known steam pressure and known air temperature, determine conversion factor.

2. Multiply published Btuh rating by conversion factor.


Dimensions – Inches

E

LC

M

J

K

H

A

D

F

G

B

A D E F G H J K M in. 453⁄4 37 173⁄4 241⁄2 1311⁄16 227⁄8 10 93⁄16 11⁄2 mm 1162 940 451 622 348 581 254 233 38

Unit Size A B C D E F G H J K L M 007–012 48 2½ Min. 7¼ Min. 36¼ 5¾ 24½ 1311⁄16 21 31⁄2-5½ Adj. 1¾ 8 1 019 60 2½ Min. 8½ Min. 46¼ 6⅞ 27⅜ 15⅞ 24 4-6 Adj. 3 9¼ 5/8

Unit Size A B C D E F G H J K L M 007–012 1219 64 Min. 184 Min. 921 146 648 348 533 89-140 Adj. 44 203 25 019 1524 64 Min. 216 Min. 1175 175 695 403 610 102-152 Adj. 76 235 16

Dimensional Data

Dimensions – mm

Figure 21. Sizes 007 through 019

Units With Electric Heat (Sizes 007 through 012)

Notes: Guest room control, low voltage or master-slave wiring connection made

at control box.

Junction box with knockouts for 1/2'' (12mm) 3/4'' (19mm) conduit.

See page 16, table 2 for dimension B.

B

Figure 22.

Front ViewSide View

A

M

E

K

J

H

Long ControlBox

D

Room CabinetMounting Holes (4)

Room Cabinet

Heat SectionPower Cord

8"(203mm)

G

1⁄2''(12mm)

1⁄4''(6mm)

Wall Box

Cooling ChassisPower Cord

F


A D E F G H J K L M in. 453⁄4 37 251⁄2 241⁄2 1311⁄16 227⁄8 10 16 41⁄2 11⁄2 mm 1162 940 648 622 348 581 254 406 114 38

A D E F G H J K L M N P in. 453⁄4 37 251⁄2 241⁄2 1311⁄16 227⁄8 10 16 41⁄2 11⁄2 143⁄4 13⁄4 mm 1162 940 648 622 348 581 254 406 114 38 375 44

Units With Hydronic Heat (Sizes 007 through 012)

Notes: See page 14 for dimensions of factory installed valve

and return piping stub. Junction box 7⁄8" (22mm) diameter knockouts for 1⁄2"

(12mm) conduit. See page 16, table 2 for dimension B.

Notes: See details G and H on page 14 for dimensions of factory installed

valve and return piping stub. See page 16, table 2 for dimension B.

The long control box is used with optional special controls such as Guest Room Control (GRC), Night Setback (NSB), and remote thermostats. Note: Left-hand piping must be used with the long control box design.

Figure 23. Short Control BoxThe short control box is used with standard unit mounted manual changeover control, and unit mounted manual changeover with emergency standby (ESB) power supply.

Side ViewRoom Cabinet Removed

Front View

A

M

J

K

L

DJunction Box

8"(203mm)

ShortControl Box

Room Cabinet


1⁄2''(12mm)

1⁄4''(6mm)

G

F

B

P

NE

Wall Box

Hydronic Coil

H

Figure 24. Long Control Box

Side ViewRoom Cabinet Removed

Front View

8"(203mm)Long

Control Box

Room Cabinet


1⁄2''(12mm)

1⁄4'' (6mm)

B

F

G

Cool ChassisPower Cord

Heat ChassisPower Cord

Flexible ConduitPower Supply Cord

Junction Box(By Others)

H

A

M

J

K

L

D

Wall Box

Hydronic Coil

E


S T U V W Y in. 191⁄4 213⁄4 211⁄4 101⁄2 231⁄2 201⁄4 mm 489 552 540 267 597 514

Notes: Available on size 009 – 012 only. Available on size 009 – 012 only, and 019. Available on size 009 – 012 only, and 019. Available on size 009 – 012 only, and 019.

Detail G — Hot water supply L.H., return L.H. Detail H — Steam supply L.H., return L.H.

W

S T V

CLReturn Stub 2"

(51mm)

25/8" (67mm)

U

T V

W

CL

1" (25mm)

2" (51mm)

Return Stub

2" (51mm) Return Stub

25/8" (67mm)

V S U

W

CL


1" (25mm)

W

V U

SCL

YS T V

Return Stub

2" (51mm)

25/8" (67mm)

CL

U

T VY

2" (51mm)

Return Stub 1" (25mm)

CL

25/8" (67mm) Return Stub

2" (51mm) V S U

Y

CL


2" (51mm) V

YU

SCLCLCL

CL

CL

CL

CL

CL

Suggested Piping Arrangements

Hot Water Supply Steam Supply

Detail A — Hot water supply R.H., return L.H. Detail B — Steam supply R.H., return L.H.

Detail C — Hot water supply R.H., return R.H. Detail D — Steam supply R.H., return R.H.

Detail E — Hot water supply L.H., return R.H. Detail F — Steam supply L.H., return R.H.

Figure 25.


A D F G H in. 591⁄2 461⁄4 273⁄8 157⁄8 291⁄2 mm 1511 1175 695 403 749

Units With Electric Heat (Size 019)

Notes: Refer to page 16, table 2 for “B” dimension.

Notes: Refer to page 16, table 2 for “B” dimension.

Units With Hydronic Heat (Size 019)

Figure 26.

Figure 27.

Front View Side View

Room Cabinet

Mounting Holes (4)

Control Box

Room Cabinet

Main Power Cord

Heat Chassis Power Cord

Cool Chassis Power Cord

4" x 4" Junction Box (Mounted by Others) Field Mounted to L.H. Edge of Wall Box

Coil Stubs for Field Piping

LongControl

Box

Cool Chassis

Power Cord


Wall Box (End View

w/o Cabinet)

B1

Front ViewSide View

Room Cabinet

Mounting Holes (4)

Control Box

Room Cabinet

Main Power Cord


Cool Chassis Power Cord

4" x 4" Junction Box (Mounted by Others) Field Mounted to L.H. Edge of Wall Box

Long Control Box

Cool Chassis

Power Cord

Heat Section Power Cord

Wall Box (End View

w/o Cabinet)

B1

A

H

D

F

G

91/4" (203 mm)


Wall Box 007–012 64 89 102 127 152 178 203 229 254 “B” Dimension 019 64 89 114 140 165 191 216 241 267 007–012 267 292 305 330 356 381 406 432 457 Overall Length

019 298 324 349 375 400 425 451 476 502

Wall Box 007–012 21⁄2 31⁄2 4 5 6 7 8 9 10 “B” Dimension 019 21⁄2 31⁄2 41⁄2 51⁄2 61⁄2 71⁄2 81⁄2 91⁄2 101⁄2 007–012 101⁄2 111⁄2 12 13 14 15 16 17 18 Overall Length

019 113⁄4 123⁄4 133⁄4 143⁄4 153⁄4 163⁄4 173⁄4 183⁄4 193⁄4

Dimension “C” – Cabinet Depth Dimension “A” 007–012 019 in. mm in. mm in. mm 0 to -1 0 to -25 81⁄4 210 — — 0 to +1 0 to +25 91⁄4 235 81⁄2 216 1 to 2 25 to 51 101⁄4 260 91⁄2 241 2 to 3 51 to 76 111⁄4 286 101⁄2 267 3 to 4 76 to 102 121⁄4 311 111⁄2 292 4 to 5 102 to 127 131⁄4 327 121⁄2 318 5 to 6 127 to 152 141⁄4 362 131⁄2 343 6 to 7 152 to 178 151⁄4 387 141⁄2 368 7 to 8 178 to 203 161⁄4 413 151⁄2 394 8 to 9 203 to 229 171⁄4 438 161⁄2 419

Wall Box and Room Cabinet Dimensions

Dimension “B” will vary by the thickness of the wall, the louver, the amount the louver is recessed into the wall (if any) and the amount the wall box extends into the room. The minimum “B” dimension is 21⁄2'' (64mm). The wall box can be factory furnished in increments between 21⁄2'' (64mm) and 10'' (254mm). Wall box extensions in 1'' (25mm) increments can also be provided to attach to the rear of the wall box.

Figure 28. Drawing Not To ScaleTable 1.

Dimensions — inchesTable 2.

Dimensions — mm

Extruded Architectural

Louver Frame

Outdoor Louver DimensionsFigure 30. Unit Size 019Figure 29. Unit Sizes 007 through 012

*361⁄4" (921mm)381⁄2" (978mm)

*137⁄8"(352mm)

161⁄8"(410mm)

33⁄8"(86mm)

11⁄8"(29 mm)

131⁄2"(343mm)

36" (914mm)

*Note: Inside dimensions. External dimensions for wall opening are 16⅜" x 46¾" (416mm x 1187mm).

33⁄8"(86mm)

*161⁄4"(413mm)

1815⁄16"(416mm)

*461⁄2" (1181mm)

485⁄8" (1235mm)

1⁄16"(2mm)

*1511⁄16"(399mm)

11⁄8"(29mm)

46" (1168mm)

Louver Frame

Extruded Architectural

*Note: Inside dimensions. External dimensions for wall opening are 141⁄32" x 369⁄16" (356mm x 929mm).

NOTICE


Stan

dard

Cha

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With

Ele

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Hea

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Con

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007

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Cap

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(Siz

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lock

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(24V

), C

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inal

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back

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Loc

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Pos

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(Siz

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Har

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Term

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Term

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Box

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Term

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Box

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Term

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Box

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Term

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TB2

Term

inal

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Stan

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Cha

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With

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all S

tat (

Size

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lock

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Remote Mounted Thermostats (Sizes 007–012 only)

ling unit. The controlling unit's transformer handles 50 VA power draw. Each controlling unit has up to 5.6 VA power draw. Up to seven controlled units can be connected to the controlling unit without danger of overheating the main transformer, although it is unlikely this many controlled units will be connected to one controlling unit.

When using remote mounted thermostats, it is often necessary to control more than one Type K unit from a single thermostat. Figure 33 illustrates schematically how a controlling and con-trolled unit(s) are connected to a single thermostat. Note that the jumper between terminals C and A of the control unit is removed. This takes the controlling unit's transformer out of the circuit allowing it to duplicate the operation of the control-

Figure 33. Multiple Unit Control with Each Available Thermostat

Figure 31. Manual Changeover (MCO) Figure 32. Automatic Changeover (ACO)Thermostat (106069001) Thermostat (105570901)

Type K units can be controlled by a remote mounted, low volt-age wall thermostat. Several variations of low voltage wall thermostats are available. The most common types used are

manual changeover and automatic changeover. Figures 31 and 32 illustrate the typical wiring schematics for proper connection of the Type K series units to the wall thermostat.

Controlled Unit (1) Terminal Board

Master Unit Control

Control Unit (single) Terminal Board

MCO T' Stat

Remove this jumper on all controlled unit(s)

CR A W2G Y1 W1

CR A W2G Y1 W1

R CR C W1G Y1

R CR C W1G Y1

R CR H W1G Y1

R WG Y

Up to 6 controlled units

(see notice)

Factory installed jumper

Jumper

Jumper

Jumper

24VPower

24VCommon Fan Cool Heat

4105570901

(See Figure 32)

ThermostatChoice

3105570801

2105570710

1106069001

(See Figure 31)

If more than 6 controlled units, control unit transformer must be changed and thermostat contact capability must be considered.

Be sure to check the amperage rating of the wall thermo-stat to prevent exceeding the maximum amperage of the thermostat contacts.

CR A W2G Y1 W1

R WG Y

CR A W2G Y1 W1

R CR C W1G Y1

24VPower

24VCommonFan Cool Heat

N/A

Control Unit Terminal Board

Control Unit Terminal Board

Factory installed jumper Factory installed jumper

Jumper

CAUTION

NOTICE


Figure 34. Guest Room Control

Guest Room Control (GRC)This additional control, widely used by hotel/motel opera-tions, is provided for use on Type K equipment. GRC allows the owner to substantially reduce energy consumption by de-energizing the equipment in unoccupied spaces. The Incremental units are wired to a central location, usually the front desk, where they are controlled by a toggle switch in a control panel (supplied by others). The units remain de-energized until the room becomes occupied, at which time the clerk can energize the equipment from the front desk (see Figure 34).

Night Setback Control (NSB)Additional savings can be achieved through use of the night set-back control (NSB). NSB incorporates an additional unit mounted thermostat to maintain a minimum, predetermined room tempera-ture. The temperature is set at the factory to 55ºF (13ºC). This setpoint is adjustable by the owner to activate anywhere between 45ºF and 55ºF (7ºC and 13ºC). If the room temperature drops below the owner selected minimum temperature, the heat cycle

Energy Saving Options

and indoor fan are energized until the night setback thermostat is satisfied. NSB overrides the unit control even if it is placed in the “stop” position or inadvertently left in the “cool” position.

Outdoor Air DampersType K units are furnished with an automatic outdoor air damper as standard. The automatic damper is wired in parallel to the indoor fan safety. If the unit is placed in the “cycle” mode, the fan and damper cycle as the thermostat cycles. If the unit is placed in the “constant” mode, the fan runs continuously and the damper is always open. The automatic damper feature can be overridden during NSB if the unit is so equipped. This prevents cold air from entering the occupied space when the unit is simply bringing the room back to the night setback temperature. Since NSB is used when the room is unoccupied, there is no reason to introduce outside air during this cycle.

Low voltage transformer (by others)

Switch #1

Switch #3

Switch #2

UnoccupiedOccupied

Unoccupied

Occupied

Unoccupied

Occupied

Central control panel(by others)

Relay

Conditioner #1

Conditioner #2

Conditioner #3

L2L1


Type K Model Engineering Guide Specifications

Cooling ChassisCooling chassis shall be slide-in, plug-in with a self-contained,

hermetically sealed refrigerant circuit. All chassis sheet metal parts shall be constructed of heavy-gauge steel. The chassis shall be insulated with a waterproof material to prevent sweating and reduce sound levels.

The cooling chassis shall consist of the following compo-nents:

Vibration isolated, permanent split capacitor, rotary-type compressor with built in thermal overload; rifled copper tubed evaporator (indoor) and condenser (outdoor) coils with high ef-ficiency raised lance aluminum plate fins mechanically expanded to the tubes for maximum heat transfer and a capillary restrictor type refrigerant metering device supplemented with a constant pressure automatic expansion valve. Coils shall be factory tested at 600 psig.

Condenser airflow system shall consist of a separate, single speed PSC motor with an aluminum blade centrifugal fan. The motor shall be totally enclosed and permanently lubricated with external oilers for prolonged life. The fan shall be forward curved and statically and dynamically balanced to provide for quiet and smooth operation.

The cooling chassis shall also be furnished with a positive closing, automatic, motorized outdoor air damper that opens whenever the indoor fan is energized, except during night set-back operation. A toggle switch shall be provided for manual override of the damper.

During the cooling cycle, the compressor and both the out-door/condenser and indoor/evaporator fan motors shall be ener-gized. Condensation accumulated in the indoor/evaporator drain pan shall be drained into the outdoor section of the unit where it is to be completely removed by evaporation. Evaporation shall be accomplished by uniformly distributing the condensate over the condenser coil via airflow generated by the outdoor/condenser fan. Condensate shall not come in contact with fan or fan motor. Slinger rings and propeller fans are not an acceptable solution for condensate removal.

Heating SectionThe heat section shall be separate from the cooling chassis

and shall incorporate an indoor/evaporator fan assembly. This assembly shall consist of two centrifugal fans that are forward curved and constructed out of aluminum with steel hubs and directly connected to a two-speed motor. Fans shall be stati-cally and dynamically balanced to provide for quiet and smooth operation. The indoor/evaporator fan motor shall be two speed,

GeneralFurnish packaged incremental comfort conditioners of the sizes and capacities shown on the schedule and/or specifications. The

units shall be located as shown on the drawings and each shall include a wall box, room cabinet, separate cooling chassis, heating section, separate control box, and outdoor louver.

All units shall be ETL listed for safety. Units shall be tested and rated in accordance with ARI Standards 310 and 380. Units shall be McQuay Type K Model designated with prefixes PKES (cooling chassis) or PKHS (heating section) or equals.

Units shall be designed to operate on (115) (208) (230) (265) volts, 60 Hz, single-phase power.The minimum energy efficiency ratio (EER) in Btu per hour per watt for each packaged incremental comfort conditioner must be

8.0 for all sizes.

permanent split capacitor, totally enclosed and permanently lubricated with external oilers for prolonged life. Built-in overload protection shall come standard with the motor.

(Electric Resistance Heat Only Models) During the heat-ing cycle, only the indoor/evaporator fan motor and electric resistance heaters are energized. The outdoor/condenser fan motor and compressor shall not be energized. Heaters shall be open wire type with quick response and high limit cutout. Electric resistance heaters shall be sized to meet heating requirements as shown on the schedule and/or specifications. Electric re-sistance heaters must not be visible or accessible through the indoor discharge grill. An electrical junction box shall be furnished for connection to field supplied power source. Additionally, a disconnect plug shall be factory installed for quick connection to the control box.

(Hydronic Heat Models) The heating coil shall be suitable for hot water or steam supply and have a factory furnished (nor-mally open) (normally closed) 2-way control valve. During the heating cycle only the indoor/evaporator fan motor, the control valve and automatic fresh air damper shall be energized. The outdoor/condenser fan motor and compressor shall not be en-ergized. The heating coil shall have copper tubes with aluminum fins mechanically bonded for maximum heat transfer. Return piping shall be 5 /8 " O.D. plain copper tube.

Control Box The control box shall be a separate component with plug-in

connections to the heating section and cooling chassis. For sizes up to 14,000 Btuh, a concealed switch shall be furnished to auto-matically cycle or provide constant operation of the indoor fans. When placed in “Cycle” mode, the indoor/evaporator fans shall be automatically controlled by the thermostat when the HEAT, COOL, or FAN modes are selected. When placed in “Constant” mode, the fan shall run continuously except when the “STOP” button is depressed. Unit sizes above 12,000 Btuh shall always be furnished with constant fan operation only.

The control overlay must be designed for the visually-impaired by containing large, raised function indicators and color-coded selector buttons placed on a white polycarbonate membrane. Raised function indicators must conform to standards set by the National Federation of the Blind and comply with the federally mandated American Disabilities Act (ADA).


Room CabinetThe room cabinet shall be made of heavy-gauge steel and

coated with oven baked polyurethane powder paint for maximum protection. To accommodate various wall opening locations and floor irregularities, an adjustable kickplate shall be furnished with a standard adjustment of +/- 1". A removable front panel shall be supplied for service access of the filter, electrical connections, cooling chassis and heat section. Hidden latches shall be pro-vided to prevent unauthorized personnel from removing the front panel. Indoor air discharge grilles shall be equipped with four-way positional [stamped steel] [extruded aluminum] covered with an oven baked epoxy powder paint for maximum protection.

FiltrationFiltration shall be accomplished using a permanent, cleanable

aluminum wire mesh filter.

Wall BoxThe wall box shall be constructed from 16-gauge steel and

welded for strength and durability. Once assembled, the wall box shall be coated with an oven baked epoxy powder paint to assure maximum corrosion protection.

Outside Air Louvers Outside air louvers shall be (stamped) (extruded archi-

tectural) anodized aluminum as shown on plans. Louver shall be (finished natural) (painted) as shown on the schedule. (Stamped louvers shall be heavy gauge anodized aluminum of no less than 16 gauge.) Special field fabricated louvers must be approved

Type K Model Engineering Guide Specifications (Continued)

Warranty

All McQuay equipment is sold pursuant to its standard terms and conditions of sale, including Limited Product Warranty. Consult your local McQuay Representative for warranty details. Refer to Form 933-43285Y. To find your local McQuay Representative, go to www.mcquay.com.

This document contains the most current product information as of this printing. For the most up-to-date product information, please go to www.mcquay.com.

Products Manufactured in an ISO Certified Facility.

© 2010 McQuay International • www.mcquay.com • (800) 432-1342 Catalog 1302 (3/10)

mcquay type k catalog 1302 - air distributors · catalog 1302 / page 3 of 32 heavy duty...

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