708535-0 q4 single pkg heat pump ii.enora.nortekhvac.com/literature/7085350.pdfnational fire...

Installation InstructionsSingle Package Heat Pump

These instructions are primarily intended to assist qualified individuals experi-enced in the proper installation of heating and/or air conditioning appliances. Somelocal codes require licensed installation/service personnel for this type equipment.All installations must be in accordance with these instructions and with allapplicable national and local codes and standards.

Read these instructions thoroughly before starting the installation. Follow allprecautions and warnings contained within these instructions and on the unit.

IMPORTANT

TM

2

It is the sole responsibility of the homeowner tomake certain that heat pump has been correctlyset up and adjusted to operate properly.

The Manufacturer warrants the heat pump to befree from defects in material or workmanship fora period of one year. We will not be responsiblefor any costs found necessary to correct prob-lems due to improper setup, improper installa-tion, adjustments, improper operating proce-dure on the part of the user, etc.

Some specific examples of service calls whichare not included in the limited warranty are:

1. Correcting wiring problems in the electricalcircuit supplying the heat pump.

SECTION 1. OWNER INFORMATION

WINTER HEATING

1. Outdoor air enters the heat pump.2. The cold, heat-transfer section (outdoor coil)

extracts the heat from the air as the refrigerantevaporates from a liquid to a cold gas.

3. The refrigerant, compressed to a hot gas bythe heat pump, carries the heat to the heat-transfer section (indoor coil).

4. The hot, heat-transfer section (indoor coil)releases the heat as the refrigerant condensesfrom a gas to a liquid.

5. The blower circulates the heat throughoutthe home via the supply duct.

6. The refrigerant returns to the outdoor coil andevaporates once again to absorb more heat.

SUMMER COOLING

1. Indoor air enters the return air duct.2. The cold, heat-transfer section (indoor coil)

extracts the heat from the air as the refrigerantevaporates from a liquid to a cold gas.

3. The refrigerant, drawn to the heat pump andcompressed to a hot gas, carries the heatoutdoors.

4. The hot, heat-transfer section (outdoor coil)releases the heat as the refrigerant condensesfrom a gas to a liquid.

5. The heat pump (outdoor fan) discharges theheat to the outside air.

6. The refrigerant returns to the indoor coil andevaporates once again to absorb more heat.

5

4

1

23

6

2

15

364

2. Resetting circuit breakers or other switches.

3. Adjusting or calibrating of thermostat.

To avoid misunderstandings at a later date,carefully review these responsibilities with yourdealer or service company.

The heat pump system will heat and cool yourhome and save your energy dollars.

During the summer, a heat pump cools a houseby absorbing heat from within the house andexhausting it outdoors. During the winter, a heatpump heats a house by absorbing heat outdoorsand exhausting it indoors. This is an efficientheating means because you pay for “moving”heat from outdoors to indoors, but do not pay togenerate the heat.

3

OPERATING INSTRUCTIONS

To Operate Your Heat Pump For Cooling —

1. Set the thermostat system switch to COOLand the thermostat fan switch to AUTO. SeeFigure 1.

2. Set the thermostat temperature selector tothe desired cooling temperature. The out-door unit fan, the indoor blower, and thecompressor will all cycle on and off to main-tain the indoor temperature at the desiredcooling level.

NOTE: If the thermostat temperature level is re-adjusted, or if the thermostat system switch isre-positioned, the outdoor unit fan and thecompressor may not start immediately. Aprotective timer circuit holds the compressorand the outdoor fan off for approximately sixminutes following a previous operation or theinterruption of the main electric power

To Operate Your Heat Pump For Heating —

1. Set the thermostat system switch for HEATand the thermostat fan switch to AUTO. SeeFigure 1.

2. Set the thermostat temperature selector tothe desired heating temperature. The out-door unit fan, the indoor blower, and thecompressor will all cycle on and off to main-tain the indoor temperature at the desiredheating level.

NOTE: If the thermostat temperature level is re-adjusted, or if the thermostat system switch isre-positioned, the outdoor unit fan and thecompressor may not start immediately. Aprotective timer circuit holds the compressorand the outdoor fan off for approx-imately sixminutes following a previous operation or theinterruption of the main electrical power.

Emergency Heat — Some thermostats willinclude a system switch position termed EM HTor AUX HT, etc. This is a back-up heating modeto be used only if there is a suspected problem.With the system switch set to EM HT, etc., thecompressor and outdoor fan will be locked offand supplemental heat (electric resistanceheating) will be used as a source of heat.Sustained use of electric resistance heat inplace of the heat pump will result in an increasein electric utility costs.

Defrost — During cold weather heatingoperation, the outdoor unit will develop a coatingof snow and ice on the heat transfer coil. This isnormal and the unit will periodically defrost itself.During the defrost cycle, the outdoor fan willstop, while the compressor continues to run andheat the outdoor coil, causing the snow and iceto melt. During defrost, there may be somesteam rise from the outdoor unit as the warm coilcauses some melted frost to evaporate.

Figure 2. Thermostat Interlock System

Cooling Thermostat

FurnaceThermostat

Double ThrowDouble Pole Switch

To Air Conditioner To Furnace

R R

Figure 1. Typical Thermostat

FAN SWITCH

TEMPERATURE SELECTOR

4

SPECIFICATIONS

Single Package Heat Pumps are designed foroutdoor rooftop or ground level slab installations.The units are shipped ready for horizontal ductconnections and are easily converted for downflow applications.

All models are shipped from the factory with thefollowing:

1. Zero clearance to combustibles2. Multi-speed direct-drive blower.3. Compressor Anti-short-cycle timer for

single phase models.4. Blower Speed Relay.5. Horizontal or Down flow duct connections.

The unit dimensions are shown in Figure 3.

Optional field-installed electric heater kits areavailable in 5 kw through 20 kw heating capacities.A separate installation instruction document forthe electric heaters and their applicationaccompanies this one. A two stage heat 24VACthermostat should be used with electric heaterkits installed.

SAFETY CONSIDERATIONS

It is the responsibility of the installer to ensurethat the installation is made in accordance withall applicable local and national codes.

! WARNING:Improper installation, service,adjustment, or maintenance may causeexplosion, fire, electrical shock or otherhazardous conditions which may resultin personal injury or property damage.Unless otherwise noted in theseinstructions, only factory authorized kitsor accessories may be used with thisproduct. Noncompliance may void theunit’s warranty.

Labels, Tags — When working with thisequipment, follow all precautions in the literature,on tags, and on labels provided with the unit and/or approved field installed kits. The type ofhazard and severity are described on each labelor tag.

Pressures Within The System — Thisequipment contains liquid and gaseousrefrigerant under high pressure. Installation orservicing should only be performed by qualifiedtrained personnel thoroughly familiar with thistype equipment.

INSTALLATION REQUIREMENTS

Equipment Check — Before beginning theinstallation, verify that the unit model is correctfor the job. The unit model number is printed onthe data label. All units have been securelypackaged at the point of shipment. Afterunpacking the unit, carefully inspect it forapparent and concealed damage. Claims fordamage should be filed with the carrier by theconsignee.

Requirements and Codes — The installer mustcomply with all local codes and regulationswhich govern this type equipment. Local codesand regulations take precedence over anyrecommendations contained in theseinstructions. All electrical wiring must be madein accordance with local codes and regulationsand with the National Electric Code (ANSI/NFPA70) or in Canada the Canadian Electric CodePart 1 CSA C.22.1. Air Ducts must be installedin accordance with the standards of the NationalFire Protection Association “Standards forInstallation of Air Conditioning and VentilationSystems” (NFPA 90A), “Standard for Installationof Residence Type Warm Air Heating and AirConditioning Systems” (NFPA 90B), theseinstructions and all applicable local codes.

NFPA publications are available by writing:

National Fire Protection AssociationBatterymarch ParkQuincy, Maine 02269

Unit Location — This heat pump is designedonly for outdoor installations. Choosing the loca-tion of the unit should be based on minimizing thelength of the supply and return ducts. Consider-ation should also be given to availability of electricpower, service access, noise, and shade. Suf-ficient clearance for unobstructed airflow throughthe outdoor coil must be maintained in order toachieve rated performance See Figure 4 forminimum clearances to obstructions.

Air Filters — A suitable air filter must be installedin the return air system. Air filter pressure dropmust not exceed 0.08 inches w.c. at 300 fpm.

5

Top View

Side View Back View

24.9

13.5

16.0

12.0

13.3

13.516.0

12.0

CG

A

47.5

3/4" NPT FemaleDrain Connector

B

DOWNFLOWSUPPLY DUCT

OPENING

DOWNFLOWRETURN DUCT

OPENING

23.5

Figure 3. Dimensions

1.25 Ø Power Entry

1.75 Ø Power Entry (Capped)

0.88 Ø Control Wiring Entry

23.6

27.2

30

1.8

4.00

13.5

16.0

14.7

13.516.0

13.45

11.75 22.7555.8

C

SUPPLYRETURN

4.0

CONDENSINGCOIL

5.0

8

Model Number Q4SD

Unit Weight

Center of Gravity Height (in inches)

A BC

with base rails without base rails036 460 28.0 25.5 35.0 35.3048 570 29.5 26.0 43.0 39.3060 580 29.5 26.0 43.0 39.3

6

Condensate Drain

Figure 5. Condensate Drain

Figure 4. Minimum Clearances

weight. Refer to Figure 3. Make sure the slabis a minimum of 2" above the grade and in an areathat drains well. See Figure 6.

Rigging and Hoisting — The unit should belifted using slings and spreader bars. Thespreader bars are necessary to preventdamaging the top of the unit’s cabinet. Makesure that the lifting equipment is adequate forthe load. Refer to Figure 3 for unit weights. Keepthe unit in an upright position at all times. Forrooftop installations, remove and discardthe two supports attached beneath the unit.

! WARNING:To avoid the risk of property damage orpersonal injury; it is the rigger’sresponsibility to insure that whatevermeans are used to hoist the unit aresafe and adequate.

! CAUTION:All panels must be securely in placewhen rigging and hoisting.

The rigging must be located outside the unit’scenter of gravity. Refer to Figure 3 for center ofgravity locations.

Condensate Drain — Condensate is removedfrom the unit through the 3/4" female pipe fittinglocated on the front side of the unit. See Figure5. Install a 2 inch condensate trap in the drain lineof the same size and prime with water. Whenconnecting rigid drain line, hold the female fittingwith a wrench to prevent twisting. Do not overtighten! Refer to local codes and restrictionsfor proper condensate disposal requirements.

UNIT INSTALLATION

Ground Level — When installing the unit atground level, provide a concrete mounting padseparate from the building foundation. The padmust be level to insure proper condensatedisposal and strong enough to support the unit’s

36"

36"

0"

36"

72"

7

Rooftop — For rooftop installations use theappropriate accessory roof curb and follow allinstructions included with it. Make sure the twosupports beneath the unit have been removed.Locate the unit according to local building codesand ordinances. The curb must be level to insureproper condensate drainage. See Figure 7.

The roof must be capable of handling the weightof the unit. See Figure 3 for unit weights.Reinforce the roof if required.

AIR DUCTS

This unit is designed only for use with a supplyand return duct. Air ducts should be installedin accordance with the standards of theNational Fire Protection Association “Standardfor Installation of Air Conditioning Systems”(NFPA 90A), “Standard for Installation ofResidence Type Warm Air Heating and AirConditioning Systems” (NFPA 90B), and allapplicable local codes.

Design the duct work according to methodsdescribed by the National Warm Air Heating andAir Conditioning Association (ACCA). The ductsmust be properly sized not to exceed .2" w.c.pressure drop at 400 scfm per nominal ton ofcooling capacity.

Duct work should be attached directly to the unitflanges for horizontal applications. On roof curbinstallations the ducts must be attached to thecurb hangers, not the unit.

Unconditioned Spaces — All duct work passingthrough unconditioned space must be properlyinsulated to minimize duct losses and prevent

condensation. Use insulation with an outer vaporbarrier. Refer to local codes for insulation materialrequirements.

Acoustical Duct Work — Certain installationsmay require the use of acoustical lining inside thesupply duct work. Acoustical insulation must bein accordance with the current revision of theSheet Metal and Air Conditioning ContractorsNational Association (SMACNA) applicationstandard for duct liners. Duct lining must be ULclassified batts or blankets with a fire hazardclassification of FHC-25/50 or less. Fiber ductwork may be used in place of internal duct linersif the fiber duct work is in accordance with thecurrent revision of the SMACNA constructionstandard on fibrous glass ducts. Fibrous ductwork and internal acoustical lining must be NFPAClass 1 air ducts when tested per UL Standard181 for Class 1 ducts.

Horizontal to Down flow Conversion — Theunit is shipped ready for horizontal ductconnections. If down flow ducts are required, theunit must be converted following the steps belowfor both the supply and return ducts.

1) Locate the duct cap inside the ductopenings and remove the screw holding itin place.

2) Lift the cap out of the unit. (The cap can bepushed up from the bottom by reachingthrough the fork slot).

3) Cover the horizontal duct opening withthe cap. The insulation will be on theindoor side.

4) Fasten the cover with screws and seal toprevent air leakage.

Clearance — These units are approved for 0inch clearance.

2"

Figure 6. Ground Level Installation Figure 7. Roof Top Installation

8

ELECTRICAL WIRING

General — Electrical power wiring must bemade in accordance with all applicable localcodes and ordinances, and with the currentrevision of the National Electric Code NFPA 70or in Canada CSA C.22.1 - Canadian ElectricalCode Part 1. If any of the original wire as suppliedwith the unit must be replaced, it must bereplaced with material of the same gage andtemperature rating.

! WARNING:To avoid the risk of electrical shock,personal injury, or death, disconnect allelectrical power to the unit beforeperforming any maintenance or service.The unit may have more than oneelectrical power supply.

Line Voltage — Before proceeding with theelectrical connections, make certain that thevoltage, frequency, and phase of the supplysource are the same as those specified on theunit rating plate. Also verify that the serviceprovided by the utility is sufficient to handle theadditional load imposed by this equipment.

See the unit wiring label for proper high and lowvoltage wiring. Make all electrical connections inaccordance with all applicable codes andordinances.

Use a separate branch electrical circuit for thisunit. A means of electrical disconnect must belocated within sight of and readily accessibility tothe unit. Internally mounted circuit breakers areavailable as field installed options. These circuitbreakers can be used as an electrical disconnect.

The unit is shipped from the factory wired for 240volt transformer operation. For 208 volt operation,remove the lead from the transformer terminalmarked 240V and connect it to the terminalmarked 208V. For maximum ampacity and overcurrent protection, see the unit rating plate.

Provide power supply (or supplies) for the unit inaccordance with the unit wiring diagram, and theunit rating plate. Connect the line-voltage leadsto the corresponding terminals on the contactor(or the circuit breaker when the field installed

circuit breaker kits are used) inside the controlcompartment. Use only copper wire for the linevoltage power supply to this unit. Use propercode agency listed conduit and a conduitconnector for connecting the supply wires to theunit and for obtaining proper grounding.Grounding may also be accomplished by usingthe grounding lug provided in the control box.

! WARNING:The unit cabinet must have anduninterrupted or unbroken electricalground to minimize personal injury if anelectrical fault should occur. This groundmay consist of electrical wire orapproved conduit when installed inaccordance with existing national orlocal codes.

Blower Speed — For optimum systemperformance and comfort, it may be necessaryto change the factory set speed. To change theblower speed:

1. Disconnect all electrical power to the unitand remove the blower panel.

2. Locate the orange and red wiresterminated to the blower motor. The orangewire controls cooling operation while thered wire controls heating operation.

3. Verify the required speed from the airflowdata found in table 3. Place appropriatewire on the appropriate motor speed tapfor the required airflow point.

NOTE: If the same speed is required for bothheating and cooling. Obtain the jumper wire fromthe homeowners packet and connect it to theblower relays at the NO & NC terminals. Be sureto only connect the speed necessary to one sideof the jumper wire.

! CAUTION:To avoid personal injury or propertydamage, make certain that the motorleads cannot come into contact withany uninsulated metal components ofthe unit.

9

Check all factory wiring per the unit wiringdiagram and inspect the factory wiring connec-tions to be sure none loosened during shippingor installation.

Low Voltage Connections

Room Thermostat — Several options areavailable for a room thermostat depending onthe accessories installed with the unit. Select athermostat which operates in conjunction withthe installed accessories. The thermostat shouldbe mounted about five feet above the ground onan inside wall. The thermostat should be keptaway from drafts, slamming doors, lamps, directsunlight, or in line with the supply air flow.

To install the thermostat:1. Position the sub base on an inside wall

and mark the mounting holes andthermostat cable openings.

2. Cut out the cable opening and route thethermostat cable from the unit’s low voltagecompartment to the thermostat location.The thermostat cable is supplied by theinstaller.

3. Connect the cable leads to the sub base orthermostat terminals and to the unit’s lowvoltage pigtails as shown in Figure 10. Asystem wiring diagram is also provided onthe inside of the control panel cover.

4. Secure sub base or thermostat to the wallusing screws provided with the thermostat.

5. If sub base is used, install the correctthermostat housing to sub base.

6. Refer to thermostat instruction sheet forcomplete detailed mounting information.

Defrost Cycle Timer — The defrost cycle timercontrols the time interval of the hot gas defrostafter the defrost sensor closes. It is located inthe lower left corner of the defrost control boardon the low voltage side of the control box. Threeinterval settings are available: 30 minutes, 60minutes, and 90 minutes. Time setting selectionis dependent on the climate where the unit isbeing installed.

Example 1. Dry climate of Southern Arizona.A 90 minute setting is recommended.

Example 2. Moist climate of Seattle,Washington. A 30 minute setting isrecommended.

To set the cycle timer, place the timing pin on thedefrost control board to the desired time intervalpost.

Note: All units are shipped from the factory withthe default time setting of 30 minutes.

Field Installed Electric Heat — These SinglePackage Heat Pumps are designed to allowoptional electric heat to be field installed asrequired by the building’s particular heatingload. The options available for each unit areshown in the heater kit installation instructions.As noted in the instructions, a field installedcircuit breaker kit is available as a means ofelectrical disconnect for the unit.

Install the heater kits as directed by the installa-tion instructions that come as part of the heaterkit. Follow all cautions and warnings as directed.

START UP AND SYSTEM CHECK

Pre-Start Check List

• Verify that the unit is level to allow propercondensate drainage.

• Verify that there is free airflow to and fromthe outdoor coil and that all clearancerequirements are met.

• Verify that the duct work is sealed toprevent air leakage.

• Verify that the line voltage power leads aresecurely connected and the unit is properlygrounded.

• Verify that the low voltage wires aresecurely connected to the correct leads onthe low voltage terminal strip.

• Verify that all exterior panels are replacedand securely fastened.

• Verify that the outdoor fan turns freely.

• Verify that the power supply branch circuitovercurrent protection is sized properly.

• Verify that the thermostat is wiredcorrectly. The thermostat function switchshould be set to “Off’ and the thermostatfan switch should be set to “Auto.”

Start-Up Procedure

Close all electrical disconnects to energize thesystem.

10

Figure 9. Motor Lead Connector

PIN NUMBER MOTOR SPEEDWIRE COLOR

1 LOW RED

2

4 HIGHBLACK

3 MEDIUMBLUE

5 N/AN/A

6 COMMONWHITE

1

2

4

3

5

6

RED

BLACK

BLUE

WHITE

! WARNING:If the unit is equipped with a crankcaseheater, allow 24 hours prior to continuingthe start up procedures to allow forheating of the refrigerant compressorcrankcase. Failure to comply may resultin damage and could cause prematurefailure of the system. This warning shouldbe followed at initial start up and any timethe power has been removed for 12 hoursor longer.

Air Circulation — Leave the thermostat systemswitch set to “Off” and set the thermostat fanswitch to “On.” The blower motor should runcontinuously. Check for air delivery at theregister(s). Ensure that there are no obstructionsat the registers or in the duct work. Set thermostatfan switch to “Auto.”

Short Cycle Protection — With the systemoperating in cooling mode, note the temperaturesetting of the thermostat and gradually raise theset-point temperature until the unit de-energizes.Immediately lower the set point temperature ofthe thermostat to its original setting and verifythat the indoor blower is energized. Verify thatafter approximately 5 minutes the compressorand fan energize and that the temperature of thedischarge air is cooler than the room temperature.This is available only for the single phase models.

System Cooling

1. Set the thermostat system switch to “Cool”and the thermostat fan switch to “Auto”.Gradually lower the thermostattemperature switch below roomtemperature and observe that the blower,compressor, and fan energize. Checkthat air cooler than room temperature is

being discharged at the register. Listenfor any unusual noises.

2. After allowing the unit to run for severalminutes, set the temperature selectorabove room temperature.- The fan and compressor cycles off with

the thermostat.- The blower should also stop unless fan

switch is set to “ON” position.

System Heating — If the unit has been equippedwith optional electric heater kits, set the systemthermostat switch to HEAT and set thethermostat fan switch to AUTO. Verify that thecompressor and outdoor fan are not energizedbut that the blower and heaters are. Check forwarm air at the supply registers.

UNIT MAINTENANCE

! WARNING:To avoid risk of electrical shock,personal injury, or death, disconnectall electrical power to the unit beforeperforming any maintenance or service.The unit may have more than oneelectrical supply.

Refrigerant Charging — Packaged heatpumps are fully charged at the factory . Thesystem refrigerant charge can be checked andadjusted through the service ports provided inthe front panel. Use only gauge lines whichhave a “Schrader” depression device presentto actuate the valve. Draw a vacuum on gaugelines to remove air before attaching them to theservice ports on the unit. Refrigerant chargingmust be done by qualified personnel familiarwith safe and environmentally responsiblerefrigerant handling procedures.

11Table 1. Blower Curves

! WARNING:Single Packaged Heat Pumps are shippedfully charged and ready for installation.When a system is installed according tothese instructions, no refrigerantcharging is required. If repairs make itnecessary for evacuation and charging,it should only be done by qualified, trainedpersonnel thoroughly familiar with thisequipment. Some local codes requirelicensed installation/service personnelto service this type of equipment. Underno circumstances should the ownerattempt to install and/or service thisequipment. Failure to comply with thiswarning could result in property damage,personal injury, or death.

! CAUTION:Use care when removing parts from thisunit. Personal injury can result fromsharp metal edges present in allequipment of sheet metal construction.

Routine Maintenance — Proper maintenanceis important to achieve optimum performancefrom the heat pump. The ability to properly

perform maintenance on this equipment requirescertain mechanical skills and tools. If you do notpossess these skills, contact your dealer formaintenance. Consult your local dealer aboutthe availability of maintenance contracts. At aminimum, routine maintenance should includethe following:

1. Inspect and clean or replace air filters atthe beginning of each heating and coolingseason, or more frequently if required.

2. Inspect the condensate drain and outdoorcoil at the beginning of each cooling season.Remove any debris. Clean the outdoorcoil and louvers as necessary using a milddetergent and water. Rinse thoroughlywith water.

3. Inspect the electrical connections fortightness at the beginning of each heatingand cooling season. Service asnecessary.

! CAUTION:The unit should never be operatedwithout a filter in the return air system.Replace disposable filters with the sametype and size.

4. The motors for the circulating air blowerand the outdoor fan are pre-lubricated atthe factory. No further oiling is required forthe life of this product.

* Denotes factory set cooling and heat pump speed** Denotes factory set electric heating speed

Model Number External Static Pressure Drop - inches water columnQ4SD 0.1 0.2 0.3 0.4 0.5 0.6

036

Tap T1 1150 1050 1000 950 850 780Tap T2 1230 1190 1120 1080 1000 950Tap T3 1400 1350 1200 1150 1080 1030Tap T4 1600 1500 1400 1300 1200 1050Tap T5 1700 1650 1600 1565 1530 1480

048


060


* **

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Y1

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Blue

ECONOMIZERPLUG

INDOORTHERMOSTAT

SUB-BASE

Green

FROMBLOWER

RELAY

Y2

W2

C

DEFROSTBOARD

123456789

BrownOrange

AccessoryHeat Plug

Typical Wiring (Field Supplied) for 1-Stage Cool, 1 Stage Electric Heat

Typical Wiring (Field Supplied) for 2-Stage Cool, 2-Stage Electric Heatwith an Optional Outdoor Thermostat

Figure 10. Typical Heat Pump Thermostat Connections

E

O

G

R

Y1

123456789

Blue

ECONOMIZERPLUG

INDOORTHERMOSTAT

SUB-BASE

Green

FROMBLOWER

RELAY

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AccessoryHeat Plug

OptionalOutdoorThermostat(Field Supplied)O

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14

5 OUTDOOR TEMPERATURE (°F)TON 70 75 80 85 90 95 100 105Suct.

Press.Dis.

Press.Dis.

Temp.Dis.

Press.Dis.

Temp.Dis.

Press.Dis.

Temp.Dis.

Press.Dis.

Temp.Dis.

Press.Dis.

Temp.Dis.

Press.Dis.

Temp.Dis.

Press.Dis.

Temp.Dis.

Press.Dis.

Temp.67 154 14069 156 146 173 14671 158 151 176 152 193 15273 160 158 178 157 195 157 212 15875 163 160 180 162 197 162 214 163 231 16477 183 165 199 167 216 168 233 168 251 17079 203 170 219 172 235 173 253 174 270 17581 222 175 238 177 255 178 272 179 289 18083 226 179 242 181 258 182 274 183 291 18485 245 185 261 186 278 187 293 18887 265 190 281 192 297 19389 284 196 301 19791 304 20293

Table 4. 13 SEER Cooling Charging Charts

Cooling Charging Charts - Continued

4 OUTDOOR TEMPERATURE (°F)TON 70 75 80 85 90 95 100 105Suct.

Press.Dis.

Press.Dis.

Temp.Dis.

Press.Dis.

Temp.Dis.

Press.Dis.

Temp.Dis.

Press.Dis.

Temp.Dis.

Press.Dis.

Temp.Dis.

Press.Dis.

Temp.Dis.

Press.Dis.

Temp.Dis.

Press.Dis.

Temp.68 161 12970 163 134 178 14072 165 140 181 145 196 15074 165 150 183 150 198 154 214 15976 168 152 183 157 201 159 216 164 232 16978 187 160 202 165 218 169 234 173 249 17880 205 168 220 173 236 178 251 182 267 18782 224 177 239 182 253 187 269 191 284 19684 227 180 242 186 257 191 271 195 286 20086 245 190 260 195 275 200 288 20488 264 199 279 204 293 20990 282 208 297 21392 300 21894

* Note: All pressures are listed in psig. and all temperatures in deg. F.

— Shaded Boxes indicate flooded conditions

— Rated Design Values. Suction Pressure will be lower than designvalue if indoor airflow, entering dry bulb, or entering wet bulbtemperatures are lower than design.

— Discharge temperatures greater than charted values indicates arefrigerant undercharge.

15

¢7105753¤

1.

Dis

con

nec

t al

l po

wer

bef

ore

ser

vici

ng

.2.

F

or

sup

ply

co

nn

ecti

on

s u

se c

op

per

co

nd

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ors

on

ly.

3.

No

t su

itab

le o

n s

yste

ms

that

exc

eed

150

V t

o g

rou

nd

.4.

If

any

of

the

ori

gin

al w

ire

as s

up

plie

d w

ith

th

e fu

rnac

e m

ust

be

rep

lace

d, i

t m

ust

be

rep

lace

d w

ith

wir

ing

mat

eria

l hav

ing

a t

emp

erat

ure

rat

ing

of

at le

ast

105°

C.

5.

Fo

r su

pp

ly w

ire

amp

acit

ies

and

ove

rcu

rren

t p

rote

ctio

n, s

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nit

rat

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pla

te.

1.

Co

up

er le

co

ura

nt

avan

t d

e fa

ire

letr

etie

n.

2.

Em

plo

yez

un

iqu

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t d

es c

on

du

cteu

rs e

n c

uiv

re.

3.

Ne

conv

ien

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as a

ux

inst

alla

tio

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de

plu

s d

e 15

0 V

a

la t

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OR

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WD #7105750

WD #7105830

7085350

Specifications and illustrations subject to changewithout notice and without incurring obligations.

Printed in U.S.A. (01/06)

¢7085355¤

INSTALLER: PLEASE LEAVE THESE

INSTALLATION INSTRUCTIONS WITHTHE HOMEOWNER.

¢710583,¤

1.

Dis

con

nec

t al

l po

wer

bef

ore

ser

vici

ng

.2.

F

or

sup

ply

co

nn

ecti

on

s u

se c

op

per

co

nd

uct

ors

on

ly.

3.

No

t su

itab

le o

n s

yste

ms

that

exc

eed

150

V t

o g

rou

nd

.4.

If

any

of

the

ori

gin

al w

ire

as s

up

plie

d w

ith

th

e fu

rnac

e m

ust

be

rep

lace

d, i

t m

ust

be

rep

lace

d w

ith

wir

ing

mat

eria

l hav

ing

a t

emp

erat

ure

rat

ing

of

at le

ast

105°

C.

5.

Fo

r su

pp

ly w

ire

amp

acit

ies

and

ove

rcu

rren

t p

rote

ctio

n, s

ee u

nit

rat

ing

pla

te.

1.

Co

up

er le

co

ura

nt

avan

t d

e fa

ire

letr

etie

n.

2.

Em

plo

yez

un

iqu

emen

t d

es c

on

du

cteu

rs e

n c

uiv

re.

3.

Ne

conv

ien

t p

as a

ux

inst

alla

tio

ns

de

plu

s d

e 15

0 V

a

la t

erre

.

7105

830

NO

TE

S: D

EF

RO

ST

BO

AR

D O

PE

RA

TIO

N:

CL

OS

ES

DU

RIN

G D

EF

RO

ST

. RA

ITN

G:

1 A

MA

XIM

UM

OP

EN

S D

UR

ING

DE

FR

OS

T. R

AT

ING

: 2

HP

AT

230

VA

C M

AX

IMU

M

CL

OS

ED

WH

EN

“Y

” IS

EN

ER

GIZ

ED

. OP

EN

WH

EN

“Y

” IS

DE

EN

ER

GIZ

ED

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RO

VID

ES

“O

FF

” D

EL

AY

TIM

E O

F 5

MIN

WH

EN

“Y

” IS

DE

EN

ER

GIZ

ED

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WIT

H D

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AN

D “

Y”

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OR

RU

N T

IME

IS A

CC

UM

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F D

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OR

INT

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L P

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IOD

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SE

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TH

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TE

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AL

TO

0.

1 2 3 4

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2

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SS

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CH

(IF

EQ

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TO 2

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WE

R S

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end

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cto

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w V

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age

Hig

h V

olt

age

No

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See

Inst

alla

tio

n

Inst

ruct

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s fo

r w

irin

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app

licat

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, an

d

info

rmat

ion

co

nce

rnin

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acce

sso

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eat

Kit

s an

d

oth

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pti

on

s.

708535-0 q4 single pkg heat pump ii.enora.nortekhvac.com/literature/7085350.pdfnational fire...

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