Lennox LRP14AC Series, Installation Instructions Manual

Page 1: ...LRP14AC LRP14HP 22 Wiring Diagrams LRP14AC LRP14HP 24 2021 Lennox Industries Inc Dallas Texas USA WARNING Improper installation adjustment alteration service or maintenance can cause property damage p...

Page 2: ...13 44 13 44 14 32 16 06 6 20 40 89 21 63 13 21 TYPICAL DRAIN LOCATION CONDENSATE DRAIN 3 4 NPT 5 75 3 55 4 12 TYPICAL VENT HOOD SIDE VIEWS 11 49 2 33 47 66 1 98 16 77 2 48 14 02 47 66 POWER ENTRY GAS...

Page 3: ...RY 7 8 DIA KNOCKOUT GAS SUPPLY 44 89 21 63 13 21 TYPICAL DRAIN LOCATION CONDENSATE DRAIN 3 4 NPT 5 75 3 55 4 12 TYPICAL VENT HOOD SIDE VIEWS TOP VIEW POWER ENTRY GAS ENTRY RETURN AIR 2 11 19 49 2 39 2...

Page 4: ...1127 44 3 8 1127 16 7 8 429 13 7 8 352 2 1 8 54 11 1 2 287 SUPPLY OPENING RETURN OPENING 8 203 14 356 18 457 24 610 3 4 19 1 25 5 1 2 140 5 3 4 146 11 1 2 287 17 1 4 438 1 3 8 35 3 3 4 95 13 330 3 76...

Page 5: ...76 x 330 mm 52 7 8 1343 44 3 8 1127 19 1 2 380 11 1 2 287 19 1 2 380 2 1 8 54 11 1 2 287 SUPPLY OPENING RETURN OPENING 8 203 14 356 18 457 24 610 3 3 4 95 22 7 8 581 7 178 3 4 19 1 25 NOTE If bottom e...

Page 6: ...Minimum Height 4 102 UNIT BASE RAIL CLIPS 4 ADJUSTABLE PITCH ROOF CURB Usage A B C in mm in mm in mm 24 30 36 42 7 8 1089 13 7 8 352 16 7 8 429 42 48 60 51 3 8 1305 19 1 2 495 19 1 2 495 NOTE Roof dec...

Page 7: ...arate request for inspection by the carrier s agent should be made in writing Location Use the following guidelines to select a suitable location for these units 1 Unit is designed for outdoor install...

Page 8: ...t condenser air discharge outlet combustion air inlet or vent outlet Clearance to Combustibles Clearance for Service Access Front of unit 0 in 24 in Back of unit 0 in 0 in Left side 0 in 24 in Right s...

Page 9: ...lated Vent Hood Installation The unit is shipped with the vent hood inside the control compartment Locate the vent hood and attach to side of utility panel with screws provided in the instruction bag...

Page 10: ...SI Z223 1 latest edition or CAN CGA B149 1 2 Canadian Installation Codes to correct improper operation of common venting system Duct System The duct system should be designed and sized according to th...

Page 11: ...ly upstream of the gas supply connection to the furnace Gas Connection The gas supply line is routed through the gas entry location on the side of the unit see Figure 4 A grommet is provided in the in...

Page 12: ...adian Electrical Code Part 1 CSA C22 1 latest edition or local codes where they prevail Use wiring with a temperature limitation of 75 C minimum Run the 208 or 230 volt 60 hertz electric power supply...

Page 13: ...uld be used to connect the thermostat to the unit Heating Start Up For Your Safety Read Before Lighting Furnace is equipped with a direct ignition control Do not attempt to manually light the burners...

Page 14: ...he gas can be obtained from the local utility BTU HR Input Cubic Feet per Revolution x 3600 x Heating Value Seconds per Revolution For example by actual measurement it takes 38 seconds for the hand on...

Page 15: ...inuous Fan With the proper thermostat and sub base continuous blower operation is possible by closing the R to G circuit Cooling blower delay is also functional in this mode 5 To change orifice a Remo...

Page 16: ...dequate airflow occurs This closes the main gas valve Pressure Switch If the combustion air blower should fail the pressure switch prevents the spark electrode and gas valve from being energized Maint...

Page 17: ...rder they were removed in Steps 1 through 3 10 When replacing the flue collector box be careful so as not to tear the adjoining insulation 11 Assure that all joints on the vent side of the combustion...

Page 18: ...Page 18 Figure 8 Wiring Diagram Single Phase CT Wiring Diagram LRP14GE...

Page 19: ...unit is fully equipped for cooling operation without auxiliary heat A heater kit accessory may also be used To install the heater kit accessory see Figure 7 1 Disconnect the power and open the main co...

Page 20: ...from normal heating operation to defrost mode and back During the compressor cycle call for defrost the control accumulates compressor run time at 30 60 90 minute field adjustable intervals If the def...

Page 21: ...pressor delay jumper is removed NOTE The 30 second off cycle is not functional when jumpering the TEST pins Time Delay The defrost control includes a compressor timer which ensures the compressor is o...

Page 22: ...16 3 5 Ton 22 4 Ton 22 5 Ton 5 Based on outdoor ambient temperature of 82 F and indoor entering air of 80 F db 67 F wb Table 8 Heat Pump Cooling System Performance Values Model Liquid Subcooling 2 2 T...

Page 23: ...432 457 483 36 250 275 301 326 336 351 375 399 423 446 470 493 42 248 271 293 316 325 339 362 385 411 436 462 487 48 265 286 308 329 338 352 376 400 427 455 482 509 60 256 276 296 316 324 340 365 386...

Page 24: ...WHT GRN 5 7 5KW HEATER ACCESSORIES FUNCTION OFF W1 ONLY BLK J2 1 J2 2 BLK C 1 2 3 4 5 J2 6 J2 5 WHT BLU RED YEL WHT B1 PUR B4 BLACK ORG L N G B3 S1 TRANSFORMER TI L G N BLK K1 1 CONTACTOR YEL W STRIPE...

Page 25: ...will be seen Also when a pressure switch opens and caused a short cycle lockout the pressure switch open code will be seen until it closes then the short cycle lockout code will flash unless it has al...