Nortek P8SD-X36C Installation Instructions Manual Download Page 3

3

about tHe air conditioner

The P8 Series single packaged convertible air conditioner 

is a high efficient self contained cooling unit that will cool 

your home year round and provide energy saving comfort.

Additional features and benefits of the P8 air conditioner 

include:

•  Indoor and outdoor coils are designed to optimize heat 

transfer, minimize size and cost, and increase durability 

and reliability.

•  Environmentally friendly R-410A Refrigerant.

oPerating inStructionS

cooling operation

1. Set the thermostat’s system mode to COOL or AUTO and 

change the fan mode to AUTO. See Figure 1.

2. Set the temperature selector to the desired temperature 

level. The outdoor fan, compressor, and blower motor will 

all cycle on and off to maintain the indoor temperature at 

the desired cooling level.

Heating operation

(If optional heat accessory is installed)

1. Set the thermostat’s system mode to HEAT or AUTO and 

change the fan mode to AUTO. See 

Figure 1

.

2. Set the temperature selector to a desired temperature 

level. The indoor blower will cycle on and off to maintain 

the indoor temperature at the desired heating level.

turning the air conditioner oFF

Change the thermostat’s system mode to OFF and the fan 
mode to AUTO. See 

Figure 1

note:

 The system will not 

operate, regardless of the temperature selector setting.

operating the indoor blower continuously

The continuous indoor blower operation is typically used to 

circulate the indoor air to equalize a temperature unbalance 

due to a sun load, cooking, or fireplace operation.

Set the thermostat fan mode to ON (

Figure 1

). The indoor 

blower starts immediately, and will run continually until the 

fan mode is reset to AUTO.

The continuous indoor blower operation can be obtained with 

iMPortant SaFety inForMation

Please read all instructions before servicing this equipment. 

Pay attention to all safety warnings and any other special 

notes highlighted in the manual. Safety markings are used 

frequently throughout this manual to designate a degree or 

level of seriousness and should not be ignored. 

Warning

 

indicates a potentially hazardous situation that if not avoided, 

could result in personal injury or death. 

caution

 indicates a 

potentially hazardous situation that if not avoided, may result 

in minor or moderate injury or property damage.

Figure 1. digital thermostat

Fan

Mode

temperature

Selector

System

Mode

the thermostat system mode set in any position, including 

OFF.

air conditioner Maintenance

Proper maintenance is most important to achieve the best 

performance from the appliance and should be performed 

frequently at the beginning of each air conditioning season.

 Warning:

your air conditioner contains liquid and gaseous 

refrigerant under pressure. installation and 

servicing should only be attempted by qualified, 

trained personnel thoroughly familiar with the 

equipment and safe responsible refrigerant 

handling procedures. Failure to comply with 

this warning could result in equipment damage, 

personal injury, or death.

•  Keep the outdoor unit clean. Hose off periodically and 

keep unit fins clear of leaves and grass clippings.

•  Keep  the  outdoor  unit  clear  of  obstructions. 

 

DO NOT obstruct airflow with tall plants or shrubs. DO 

NOT store gasoline or other flammable materials on or 

near the outdoor unit.

•  Never operate the appliance without a filter installed in 

the return air duct. Inspect filters frequently and replace 

when necessary with filter of same dimensional size.

before you call a technician:

•  Check the thermostat setting. Make sure the system mode 

and temperature settings are correct.

•  Check the electrical panel for tripped circuit breakers. 

•  Check the filters for dust accumulation.

•  Check the outdoor unit and make sure it is clean and not 

covered with grass or leaves.

uSer inForMation

Summary of Contents for P8SD-X36C

Page 1: ...sense plays an important role as well Pay attention to all safety warnings and any other special notes highlighted in the manual Improper installation of the furnace or failure to follow safety warnings could result in serious injury death or property damage These instructions are primarily intended to assist qualified individuals experienced in the proper installation of this appliance Some local...

Page 2: ... 7 Horizontal to Downflow Conversion 7 Removal of Internal Filter Rack 7 Installing Filters in the Filter Rack 7 Removing Filters from Filter Rack 7 Condensate Drain 7 ELECTRICAL WIRING 8 Pre Electrical Checklist 8 Line Voltage 8 Grounding 8 Unbalanced 3 Phase Supply Voltage 8 Optional Outdoor Thermostat 9 Optional Electric Heater Kits 9 Airflow 10 Blower Speed 10 Fixed Torque ECM Motor 11 START U...

Page 3: ...all instructions before servicing this equipment Pay attention to all safety warnings and any other special notes highlighted in the manual Safety markings are used frequently throughout this manual to designate a degree or level of seriousness and should not be ignored WARNING indicatesapotentiallyhazardoussituationthatifnotavoided couldresultinpersonalinjuryordeath CAUTIONindicatesa potentially ...

Page 4: ...e materials including gasoline and any other flammable vapors and liquids in the vicinity of the unit WARNING The safety information listed below must be followed during the installation service and operation of this unit Unqualified individuals shouldnotattempttointerprettheseinstructions or install this equipment Failure to follow safety recommendations could result in possible damage to the equ...

Page 5: ...sted for capacity and efficiency in accordance with AHRI Standards This unit will provide many years of safe and dependable comfort providing it is properly installed and maintained With regular maintenance this unit will operate reliably year after year Abuse improper use and or improper maintenance can shorten the life of the appliance and create unsafe hazards Pre Installation Check Before you ...

Page 6: ...t is the rigger s responsibility to ensure that whatever means are used to hoist the unit are safe and adequate The lifting equipment must be adequate for the load Refer to Table 6 page 13 for unit weights The unit must be lifted from the holes in the base rails using cables or chains Spreader bars are required to protect the unit and ensure even loading Keep the unit in an upright position at all...

Page 7: ... NOTE The assembly can now be easily collapsed and removed from the unit See Figure 5 for filter rack securing screw locations Installing Filters in the Filter Rack 1 Remove access panel screws from return air panel Hint Loosen the unit s top panel screws near the top edge of the access panel The access panel was designed to be captured underneath the top panel 2 Slide the first filter between bot...

Page 8: ...lance occurs when the voltages of all phases of a 3 phase power supply are no longer equal This unbalancereducesmotorefficiencyandperformance Some underlying causes of voltage unbalance may include Lack of symmetry in transmission lines large single phase loads andunbalancedoroverloadedtransformers Amotorshould never be operated when a phase imbalance in supply is greater than 2 Perform the follow...

Page 9: ...alues given in step 1 the BC voltage 460V is the greatest difference in value from the average 460 454 6 454 451 3 454 453 1 4 Determine percent of voltage imbalance by using the results from steps 2 3 in the following equation 6 454 100 x 1 32 Example max voltage deviation from average voltage 100 x average voltage Voltage Imbalance The amount of phase imbalance 1 32 is satisfactory since the amo...

Page 10: ... 19 1399 20 Tap 4 46 1968 14 1926 15 1873 15 1823 16 1774 16 1717 17 1665 17 1619 18 Tap 5 60 2242 13 2183 13 2143 13 2098 14 2044 14 1995 14 1953 15 1907 15 X60 Tap 1 21 1161 24 1116 25 1084 26 1031 28 954 30 895 32 834 34 779 37 Tap 2 31 1553 18 1521 19 1474 19 1437 20 1379 21 1335 21 1276 22 1183 24 Tap 3 40 1862 15 1818 16 1766 16 1731 16 1678 17 1635 17 1599 18 1539 18 Tap 4 46 2009 14 1973 1...

Page 11: ...ze 2 Feeltheairbeingcirculatedbytheindoorblowerandverify that it is cooler than ambient temperature Listen for any unusual noises If unusual sounds occur determine the source of the noise and correct as necessary 3 Allow the cooling system to operate for several minutes and then set the temperature selector above room temperature Verify the fan and compressor cycle off with the thermostat NOTE The...

Page 12: ...ipment and at listed airflows for the indoor coil Assemblies of indoor coils and outdoor units not listed are not recommended Charging the Unit in AC Mode Outdoor Temperatures Above 65F 1 With the system operating at steady state measure the liquid refrigerant pressure in psig at the service valve 2 Measure the liquid refrigerant temperature in Fahrenheit at the service valve 3 For the temperature...

Page 13: ...ioner Dimensions FIGURES TABLES Table 6 Center of Gravity Unit Shipping Weights Model Number P8SE Unit Shipping Weight Center of Gravity Height C in inches A B with base rails without base rails X36 375 29 20 5 35 0 30 76 X48 398 29 20 5 35 0 30 76 X60 437 27 25 23 5 43 0 39 3 NOTE To determine unit weight subtract 21lbs from unit shipping weight Top View 24 9 13 5 16 12 13 3 13 5 16 12 CG A 47 5 ...

Page 14: ...ions de plus de 150 V la terre 5 For supply wire ampacities and overcurrent protection see unit rating plate 711011A Replaces 7110110 11 14 1 2 3 4 5 6 7 8 9 R C S 1 5 2 6 3 4 TO 208 230 VAC POWER SUPPLY 9 8 1 7 6 5 4 3 2 9 8 1 7 6 5 4 3 2 9 8 1 7 6 5 4 3 2 9 8 1 7 6 5 4 3 2 COMPRESSOR COMPRESSOR CONTACTOR CAPACITOR PLUG A OUTDOOR FAN MOTOR PRESSURE SWITCH TO DISCHARGE AIR SENSOR 3 AMP FUSE T2 T1 ...

Page 15: ...GREEN RED RED RED BROWN ORANGE RED BLACK BLUE WHITE BLACK BLACK BLACK YELLOW BLACK BLUE BLACK WHITE RED YELLOW YELLOW BK BK BK WHITE WHITE WHITE WHITE WIRING DIAGRAM NOTES FIELD WIRING LEGEND LOW VOLTAGE HIGH VOLTAGE 460 Volt Convertable Packaged Air Conditioner Three Phase 60Hz 1 Disconnect all power before servicing 2 For supply connections use copper conductors only 3 If any of the original wir...

Page 16: ...SSORY HEAT PLUG C W1 R Y2 Y1 G TERMINAL STRIP Red Black Green FROMTRANSFORMER FROM CONTACTOR Optional Check T stat Instructions Figure 11 AC Thermostat Connections 208 230V 1 2 3 4 5 6 7 8 9 10 11 12 24V Common R Y2 C G W Gray Yellow Blue ECONOMIZER PLUG INDOOR THERMOSTAT SUB BASE 1 2 3 4 5 6 7 8 9 Orange ACCESSORY HEAT PLUG C W1 R Y2 Y1 G TERMINAL STRIP Red Black Green FROMTRANSFORMER FROM CONTAC...

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