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TABLE OF CONTENTS

IMPORTANT SAFETY INFORMATION .....................3

REQUIREMENTS & CODES .....................................4

GENERAL INFORMATION ........................................4

Before You Install this Unit .......................................4
Locating the Heat Pump ..........................................4
Minimum Clearances ...............................................4

Service Access Clearance: ..................................4
Clearances to Combustibles: ...............................4

Air Duct System.......................................................5

HEAT PUMP INSTALLATION ...................................5

Unpacking the Unit ..................................................5
Installing Return & Supply Air Collars (Optional) ....5

Supply Duct ..........................................................5
Return Duct ..........................................................6

Connecting Return & Supply Air Flexible Ducts ......6
Locating & Installing the Return Air Assembly ........6
Locating & Installing the Supply Damper(s) ............6
Condensate Drainage .............................................6

ELECTRICAL CONNECTIONS .................................7

Pre-Electrical Checklist ...........................................7
Line Voltage .............................................................7
Overcurrent Protection ............................................8
Grounding................................................................8
Thermostat / Low Voltage Connections ...................8
Defrost Control Board Test Pins ..............................8
Clearing Defrost Board Fault Codes .......................8
Electric Heat Package (optional) .............................8
Outdoor Thermostat Options ...................................8

HUD Outdoor Thermostat Option .........................8
2nd Stage Thermostat Option ..............................8

Blower Speed ..........................................................8
Ambient Sensor Mounting .......................................9

STARTUP & ADJUSTMENTS ...................................10

Pre-Start Checklist ..................................................10
Start-Up Procedure .................................................10

Air Circulation .......................................................10
System Heating ....................................................10
System Cooling ....................................................10
Short Cycle Protection .........................................10
Emergency Heat ..................................................10

Forced Defrost Mode (Field Test) ............................10
Anti Short Cycle Timer Test .....................................11

Heating Mode .......................................................11
Cooling Mode .......................................................11

COMPONENT FUNCTIONS ......................................11

UNIT MAINTENANCE ................................................11

REFRIGERANT CHARGING .....................................11

Charging the Unit in AC Mode .................................11
Charging the Unit in Heating Mode .........................11
Refrigerant Charging Tables - Cooling ....................12

Table 3. Charging Table for 2 Ton Models .............12
Table 4. Charging Table for 2.5 Ton Models ..........12
Table 5. Charging Table for 3 Ton Models .............13
Table 6. Charging Table for 3.5 Ton Models ..........13
Table 7. Charging Table for 4 Ton Models .............14
Table 8. Charging Table for 5 Ton Models .............14

Refrigerant Charging Tables - Heating ....................15

Table 9. Charging Table for 2 Ton Models .............15
Table 10. Charging Table for 2.5 Ton Models ........15
Table 11. Charging Table for 3 Ton Models ...........15
Table 12. Charging Table for 3.5 Ton Models ........16
Table 13. Charging Table for 4 Ton Models ...........16
Table 14. Charging Table for 5 Ton Models ...........16

FIGURES & TABLES .................................................17

Figure 9. Unit Dimensions ....................................17
Table 15. Physical Data ........................................17

Wiring Diagrams ......................................................18

Figure 10. W.D. for 2 & 2.5 Ton Models ................18
Figure 11. W.D. for 3, 3.5 & 4 Ton Models ............19
Figure 12. W.D. for 5 Ton Models ..........................20

INSTALLATION CHECKLIST ....................................24

Summary of Contents for Q7RE Series

Page 1: ...mportant 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...

Page 2: ...Air Circulation 10 System Heating 10 System Cooling 10 Short Cycle Protection 10 Emergency Heat 10 Forced Defrost Mode Field Test 10 Anti Short Cycle Timer Test 11 Heating Mode 11 Cooling Mode 11 COMP...

Page 3: ...d any other flammable vapors and liquids in the vicinity of the unit CAUTION This unit uses R 410A refrigerant DO NOT use any other refrigerant in this unit Use of another refrigerant will damage the...

Page 4: ...rating plate for the proper circulating air flow and temperature rise It is important that the duct system be designed to provide the correct flow rates and external pressure rise An improperly desig...

Page 5: ...insulated to minimize duct losses and prevent condensation Use insulation with an outer vapor barrier Refer to local codes for insulation material requirements HEAT PUMP INSTALLATION Unpacking the Uni...

Page 6: ...or joists Care should be taken when cutting throughcarpetingtoavoidsnags NOTE Inmostinstallationsit will be necessary to cut a similar hole in the fiberboard directly under the hole in the floor Howev...

Page 7: ...rical box of the unit The installer should become familiar with the wiring diagram before making any electrical connections to the unit An electrical disconnect must be located within sight of and rea...

Page 8: ...her location where its operation may be adversely affected by radiant heat from fireplaces sunlight or lightingfixtures andconvectiveheatfromwarmairregistersor electrical appliances Refer to the therm...

Page 9: ...28 1084 29 1027 31 967 33 Tap T3 1266 25 1332 24 1291 24 1245 25 1192 27 1132 28 1067 30 995 32 Tap T4 1518 21 1481 21 1442 22 1400 23 1355 23 1307 24 1256 25 1202 26 Tap T5 1686 19 1644 19 1601 20 15...

Page 10: ...ting Set the thermostat system mode to HEAT and the fan mode to AUTO Change the thermostat temperature selector above the existing room temperature and check for the discharge of warm air at the suppl...

Page 11: ...to the System Heating section on page 10 Anti Short Cycle Timer Test The 5 minute time delay feature can be bypassed by shorting the TEST pins together Heating Mode WhentheTESTpinsareshortedtogetherfo...

Page 12: ...75 80 85 90 95 100 105 LIQ PRESS DIS TEMP LIQ PRESS DIS TEMP LIQ PRESS DIS TEMP LIQ PRESS DIS TEMP LIQ PRESS DIS TEMP LIQ PRESS DIS TEMP LIQ PRESS DIS TEMP LIQ PRESS DIS TEMP 135 238 135 137 239 139...

Page 13: ...R TEMPERATURE F 70 75 80 85 90 95 100 105 LIQ PRESS DIS TEMP LIQ PRESS DIS TEMP LIQ PRESS DIS TEMP LIQ PRESS DIS TEMP LIQ PRESS DIS TEMP LIQ PRESS DIS TEMP LIQ PRESS DIS TEMP LIQ PRESS DIS TEMP 135 26...

Page 14: ...e suction pressure will vary from design value if outdoor air flow entering dry bulb or entering wet bulb temperatures vary NOTES 1 All pressures are listed psig and all temperatures in F 2 Discharge...

Page 15: ...63 124 69 283 130 84 307 145 105 352 166 126 396 188 43 231 109 52 249 116 61 268 122 70 287 128 85 314 142 106 359 162 127 403 182 44 238 107 53 255 114 62 273 120 71 290 126 86 321 139 107 366 157 1...

Page 16: ...115 47 242 123 58 268 132 69 294 141 84 324 158 104 374 183 124 424 208 38 223 113 48 248 121 59 273 130 70 298 139 85 331 155 105 381 178 125 431 201 39 230 111 49 254 119 60 278 128 71 301 137 86 3...

Page 17: ...ctric Heater Power Supply 1 125 Power Supply 0 875 Low Voltage Supply Control Access Panel Blower Access Panel H 17 86 15 36 10 10 3 4 NPT Drain Connection 1 12 13 1 38 3 2 3 2 5 29 Side View MODEL NU...

Page 18: ...connections use copper conductors only 3 Not suitable on systems that exceed 150V to ground 4 For replacement wires use conductors suitable for 105 C 1 Couper le courant avant de faire letretine 2 Emp...

Page 19: ...servicing 2 For supply connections use copper conductors only 3 Not suitable on systems that exceed 150V to ground 4 For replacement wires use conductors suitable for 105 C 1 Couper le courant avant...

Page 20: ...1 Disconnect all power before servicing 2 For supply connections use copper conductors only 3 Not suitable on systems that exceed 150V to ground 4 For replacement wires use conductors suitable for 105...

Page 21: ...nd stage outdoor thermostat is field supplied NOTE 2 HUD outdoor thermostat is not factory installed in all models For HUD applications Remove white wire between terminal W2 and W2 IN terminal C G O W...

Page 22: ...22...

Page 23: ...23...

Page 24: ...essure high side Stage 1 Suction Pressure low side FILTER SYSTEM Filter s secured in place YES NO Filter s clean YES NO 10331420 Replaces 10270500 INSTALLER PLEASE LEAVE THESE INSTRUCTIONS WITH THE OW...

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