Carrier 62X 03-35 Installation Instructions Manual Download Page 52 | Manualshive

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Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Catalog No. 04-53620021-01

Printed in U.S.A.

Form 62X-1SI

CL-4

1018

7-18

Replaces: New

© Carrier Corporation 2018

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CUT ALON

G

DOTT

E

D

LINE

CU

T ALONG DOTTED LINE

SET POINTS:

SCHEDULES:

SERVICE INFORMATION

Final Filter Size ____________________________________________________

Quantity__________________________

Pre-Filter Size _____________________________________________________

Quantity__________________________

ECW Belt Part Number _____________________________________________

Size _____________________________

CONTROL VARIABLE

ABBREVIATION

DEFAULT

SET POINT

UNITS

CURRENT SP

UNITS

Supply Fan Static Pressure

SFDPT STATIC

0.75

in. H2O

in. H2O

Exhaust Fan Static Pressure

EFDPT STATIC

0.020

in. H2O

in. H2O

Cooling Leaving Air Temp

COOLING LAT

70

°F

°F

Cooling Suction Line Temp

COOLING SLT

45

°F

°F

Cooling OAT/ECAT Low Limit

CLG OAT/ECAT

55

°F

°F

Cooling Zone Air Temp

COOLING ZAT

72

°F

°F

Leaving Air Temp Low Limit

LAT LOW LIMIT

40

°F

°F

Leaving Air Temp High Limit

LAT HIGH LIMIT

130

°F

°F

Heating OAT/ECAT

HTG OAT/ECAT

58

°F

°F

Dehumidify OAT/ECAT

DEHUMID OAT/ECAT

60

°F

°F

Heating Leaving Air Temp

HEATING LAT

72

°F

°F

Heating Zone Air Temp

HEATING ZAT

72

°F

°F

Leaving Air Temp Heat Fail

LAT HEAT FAIL

50

°F

°F

RTRHO Enabled

RTRHO ENABLE

NO

YES/NO

YES/NO

Cooling ZAT Set Point

COOLING ZAT

72

°F

°F

RTHO Enabled

RTHO ENABLE

NO

YES/NO

YES/NO

Heating ZAT Set Point

HEATING ZAT

72

°F

°F

Dehumidification Mode Enable

DEHUMID

NO

YES/NO

YES/NO

SCHEDULE NAME

M

T

W

T

F

S

S

START TIME

END TIME

Daily Schedule 1
Daily Schedule 2
Daily Schedule 3
Daily Schedule 4
Holiday Schedule 1
Holiday Schedule 2
Holiday Schedule 3
Holiday Schedule 4
Holiday Schedule 5
Holiday Schedule 6
Holiday Schedule 7
Holiday Schedule 8
Holiday Schedule 9
Holiday Schedule 10
Holiday Schedule 11
Holiday Schedule 12
Override Schedule 1
Override Schedule 2

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Summary of Contents for 62X 03-35

Page 1: ...f required For verti cal supply and return connections ductwork can be installed to roof curb before unit is set in place Ductwork must be attached to curb and not to the unit Curb must be level This is necessary to permit unit drain to function properly Unit leveling tolerance is 1 16 in per linear ft in any direction Refer to Accessory Roof Curb Installation Instructions for additional informati...

Page 2: ...or unit dimensions refer to Fig 3 8 Service Clearances The minimum recommended service clearance is 48 in on all sides of unit with access doors Ventilation Clearances In order to ensure proper operation of an air source unit a 24 in clearance for ventilation must be maintained on the sides In addition specific ventilation situational clearance guidelines are listed below Do not locate the unit un...

Page 3: ...CABLE FIXED SPREADER BAR SPREADER BAR FIXED ROLLING BLOCK 20 CABLE THROUGH ROLLING BLOCK HOOK LOOP CHAIN THROUGH RIGGING POINT 2 X 2 X 3 16 SQUARE TUBING RIGGING POINT WELDED TUBING CABINET FRAME FORMED GALVANIZED CABINET FRAME ADJUST CABLE LENGTH TO LIFT POINTS AS NECESSARY BASED ON UNIT CENTER OF GRAVITY SEE DETAIL A TYP ON TUBING FRAMES DETAIL C DETAIL A HOOK CHAIN WELDED FRAME WELDED FRAME LIF...

Page 4: ...ition of Carrier s Dedicated Outdoor Air Systems Builder 3 For an exact unit drawing please refer to the DOAS Builder generated submittal SUPPLY BLOWER CONDENSATE CONNECTION OUTSIDE AIR INTAKE HOOD 100 64 1 8 168 5 8 60 3 8 81 1 2 15 5 8 BOTTOM ELECTRICAL ENTRY 100 1 8 18 71 7 8 8 1 2 OPTIONAL GAS ELECTRIC HEAT LIFTING POINT FLUE LIFTING POINT 8 1 8 15 5 8 18 5 8 GAS INLET 50 1 2 TOP VIEW SIDE VIE...

Page 5: ...tal CONDENSING SIDE NOT SHOWN EVAPORATOR COIL FILTER ACCESS OPTIONAL WHEEL OPTIONAL EXHAUST BLOWER CONTROL PANEL COMPRESSOR 72 1 8 4 10 1 8 7 7 8 4 17 1 8 25 7 8 9 3 4 8 1 8 36 1 2 8 1 8 36 12 EXHAUST AIR SUPPLY AIR ELECTRICAL ENTRY 5 8 12 1 2 23 17 1 8 23 11 11 7 8 34 7 8 11 3 8 46 OUTSIDE AIR INTAKE AIR EXHAUST SIDE VIEW BOTTOM VIEW BACK VIEW Fig 3 Unit Dimensions 62X A Cabinet High Capacity wit...

Page 6: ...est edition of Carrier s Dedicated Outdoor Air Systems Builder 3 For an exact unit drawing please refer to the DOAS Builder generated submittal SUPPLY BLOWER CONDENSATE CONNECTION OPTIONAL GAS ELECTRIC HEAT OUTSIDE AIR INTAKE HOOD 100 64 166 1 8 60 3 8 LIFTING POINT FLUE LIFTING POINT 71 7 8 8 1 2 100 5 8 15 50 1 2 7 3 8 9 3 8 7 3 4 CONDENSER FAN 8 1 8 15 5 8 18 5 8 GAS INLET BACK VIEW TOP VIEW ...

Page 7: ... 36 12 8 1 8 36 1 2 8 1 8 17 25 11 22 25 16 7 1 4 9 1 2 23 17 1 8 23 11 11 7 8 34 7 8 11 3 8 46 OUTSIDE AIR INTAKE AIR EXHAUST SUPPLY AIR TOP VIEW BOTTOM VIEW RIGHT SIDE VIEW LEFT SIDE VIEW NOTES 1 Dimensions are in inches 2 For detailed information on unit dimensions please refer to a latest edition of Carrier s Dedicated Outdoor Air Systems Builder 3 For an exact unit drawing please refer to the...

Page 8: ... Carrier s Dedicated Outdoor Air Systems Builder 3 For an exact unit drawing please refer to the DOAS Builder generated submittal 87 1 8 81 5 8 220 3 4 117 1 4 149 3 8 76 3 8 8 1 2 8 1 8 GAS INLET CONDENSATE CONNECTION SUPPLY BLOWER FLUE BOTTOM ELECTRICAL ENTRY 21 15 7 8 LIFTING POINT LIFTING POINT 100 5 8 103 5 8 OPTIONAL GAS ELECTRIC HEAT OUTSIDE AIR INTAKE HOOD 72 3 8 242 3 4 CONDENSER FAN TOP ...

Page 9: ...4 27 9 7 8 5 8 23 39 12 8 1 8 36 1 2 8 1 8 ELECTRICAL ENTRY SUPPLY AIR CONTROL PANEL EXHAUST AIR 14 11 7 8 17 1 8 23 37 7 8 16 3 4 46 OUTSIDE AIR INTAKE AIR EXHAUST FRONT VIEW BOTTOM VIEW LEFT SIDE VIEW NOTES 1 Dimensions are in inches 2 For detailed information on unit dimensions please refer to a latest edition of Carrier s Dedicated Outdoor Air Systems Builder 3 For an exact unit drawing please...

Page 10: ... LIFTING POINT LIFTING POINT 100 5 8 103 5 8 OPTIONAL GAS ELECTRIC HEAT OUTSIDE AIR INTAKE HOOD 72 3 8 242 3 4 CONDENSER FAN 7 1 8 15 1 8 7 3 4 TOP VIEW BACK VIEW NOTES 1 Dimensions are in inches 2 For detailed information on unit dimensions please refer to a latest edition of Carrier s Dedicated Outdoor Air Systems Builder 3 For an exact unit drawing please refer to the DOAS Builder generated sub...

Page 11: ...PANEL 17 1 8 24 1 2 11 1 8 EXHAUST AIR 14 11 7 8 17 1 8 23 23 37 7 8 16 3 4 46 OUTSIDE AIR INTAKE AIR EXHAUST 22 1 4 24 1 2 16 1 4 7 1 8 15 1 4 SUPPLY AIR FRONT VIEW BOTTOM VIEW LEFT SIDE VIEW RIGHT SIDE VIEW NOTES 1 Dimensions are in inches 2 For detailed information on unit dimensions please refer to a latest edition of Carrier s Dedicated Outdoor Air Systems Builder 3 For an exact unit drawing ...

Page 12: ...8 8 5 8 159 3 4 7 3 4 117 7 8 LIFTING POINTS 162 3 4 366 1 2 TOP VIEW BACK VIEW NOTES 1 Dimensions are in inches 2 For detailed information on unit dimensions please refer to a latest edition of Carrier s Dedicated Outdoor Air Systems Builder 3 For an exact unit drawing please refer to the DOAS Builder generated submittal Fig 7 Unit Dimensions 62X DXL Cabinet High Capacity Sizes 25 35 ERV Vertical...

Page 13: ...IEW 15 3 8 21 7 8 16 1 4 20 13 1 2 20 16 1 4 48 1 4 31 3 4 71 1 2 7 3 8 OUTSIDE AIR INTAKE AIR EXHAUST LEFT SIDE VIEW NOTES 1 Dimensions are in inches 2 For detailed information on unit dimensions please refer to a latest edition of Carrier s Dedicated Outdoor Air Systems Builder 3 For an exact unit drawing please refer to the DOAS Builder generated submittal Fig 7 Unit Dimensions 62X DXL Cabinet ...

Page 14: ...on of Carrier s Dedicated Outdoor Air Systems Builder 3 For an exact unit drawing please refer to the DOAS Builder generated submittal OPTIONAL GAS ELECTRIC HEAT CONDENSATE CONNECTION CONDENSER FANS SUPPLY BLOWER OUTSIDE AIR INTAKE HOOD 87 1 8 399 3 8 LIFTING POINTS FLUE GAS INLET LIFTING POINT 98 1 4 269 1 8 32 90 7 8 8 5 8 159 3 4 7 3 4 117 7 8 LIFTING POINTS 162 3 4 366 1 2 7 1 8 17 3 4 1 1 4 T...

Page 15: ...tems Builder 3 For an exact unit drawing please refer to the DOAS Builder generated submittal OPTIONAL WHEEL EVAPORATOR COIL FILTER ACCESS COMPRESSORS OPTIONAL EXHAUST BLOWER CONTROL PANELS 74 5 8 18 3 8 8 3 8 60 8 3 8 EXHAUST AIR CONDENSING SIDE NOT SHOWN 25 7 8 31 3 4 19 1 8 15 3 8 21 7 8 48 1 4 31 3 4 71 1 2 7 3 8 OUTSIDE AIR INTAKE AIR EXHAUST 16 1 4 20 13 1 2 20 16 1 4 7 18 30 3 8 32 23 5 8 S...

Page 16: ...et SUPPLY FAN Backward Curved ECM mm 280 355 Airfoil in Backward Inclined in Nominal Cfm 100 OA 450 600 750 900 1050 1200 OPTIONAL HOT GAS REHEAT AND LIQUID SUBCOOLING COIL Face Area without ERV sq ft 2 8 2 8 2 8 4 7 4 7 4 7 Face Area with ERV sq ft 7 7 7 Use B Cabinet LOW PRESSURE SWITCH PSIG Cutout 35 Reset Auto 55 CONDENSATE DRAIN CONNECTION NPT in 0 75 OPTIONAL GAS HEAT SECTION Gas Input Sizes...

Page 17: ... MERV 8 1 20x24 1 16x20 1 20x20 MERV 11 1 20x24 1 16x20 1 20x20 MERV 14 1 20x24 1 16x20 1 20x20 OPTIONAL ERV Type Molecular Sieve Use B Cabinet Diameter depth in 24 4 32 4 36 4 Use B Cabinet OPTIONAL ERV FILTERS Quantity Size in with 24 in ERV 4 12x24 4 12x24 4 12x24 Use B Cabinet with 32 in ERV 6 18x20 6 18x20 6 18x20 Use B Cabinet with 36 in ERV 2 20x20 2 20x24 2 20x20 2 20x24 2 20x20 2 20x24 Us...

Page 18: ... ERV sq ft 7 7 7 10 10 10 12 12 Use C Cabinet SUPPLY FAN Backward Curved ECM mm 355 450 Airfoil in 12 14 16 Backward Inclined in 10 11 12 14 16 Nominal Cfm 100 OA 450 600 750 900 1050 1200 1500 1800 2250 2700 3000 Motor Hp Range ECM 1 1 5 2 3 5 OPTIONAL HOT GAS REHEAT AND LIQUID SUBCOOLING COIL Face Area without ERV sq ft 2 8 2 8 2 8 4 7 4 7 4 7 7 7 7 10 10 Face Area with ERV sq ft 7 7 7 10 10 10 ...

Page 19: ...ERV Type Molecular Sieve Diameter depth in 24 4 32 4 36 4 42 4 Use C Cabinet OPTIONAL ERV FILTERS Quantity Size in with 24 in ERV 4 12x24 4 12x24 4 12x24 4 12x24 4 12x24 4 12x24 4 12x24 4 12x24 Use C Cabinet with 32 in ERV 6 18x20 6 18x20 6 18x20 6 18x20 6 18x20 6 18x20 6 18x20 6 18x20 Use C Cabinet with 36 in ERV 2 20x20 2 20x24 2 20x20 2 20x24 2 20x20 2 20x24 2 20x20 2 20x24 2 20x20 2 20x24 2 20...

Page 20: ...3 HIGH PRESSURE SWITCH PSIG Cutout 640 Reset Manual 595 EVAPORATOR COIL Face Area without ERV sq ft Use B Cabinet 7 7 7 10 10 12 16 16 Face Area with ERV sq ft 10 10 12 12 16 16 16 Use D Cabinet SUPPLY FAN Backward Curved ECM mm 450 Airfoil in 14 16 18 20 Backward Inclined in 14 16 18 20 Nominal Cfm 100 OA 1 050 1200 1500 1800 2250 2700 3000 3750 4500 5250 Motor Hp Range ECM 1 1 5 2 3 5 7 5 10 OPT...

Page 21: ...6x25 2 16x25 2 20x25 4 24x24 Optional 4 in MERV 8 Use B Cabinet 2 24x24 4 16x25 2 16x25 2 20x25 4 24x24 MERV 11 Use B Cabinet 2 24x24 4 16x25 2 16x25 2 20x25 4 24x24 MERV 14 Use B Cabinet 2 24x24 4 16x25 2 16x25 2 20x25 4 24x24 OPTIONAL ERV Type Molecular Sieve Diameter depth in 24 4 32 4 36 4 42 4 48 4 48 6 Use D Cabinet OPTIONAL ERV FILTERS Quantity Size in with 32 in ERV 6 18x20 Use D Cabinet w...

Page 22: ...m DUAL 280 355 SINGLE 450 Airfoil in 18 20 22 25 Backward Inclined in 18 20 22 25 Nominal Cfm 100 OA 3000 3750 4500 5250 Motor Hp Range ECM 1 5 2 3 5 7 5 10 15 OPTIONAL HOT GAS REHEAT AND LIQUID SUBCOOLING COIL Face Area without ERV sq ft 12 12 16 16 Tube Size with ERV in 16 28 9 28 9 28 9 LOW PRESSURE SWITCH PSIG Cutout 35 Reset Auto 55 CONDENSATE DRAIN CONNECTION NPT in 1 OPTIONAL GAS HEAT SECTI...

Page 23: ... Standard 2 in MERV 8 2 16x25 2 20x25 4 24x24 Optional 4 in MERV 8 2 16x25 2 20x25 4 24x24 MERV 11 2 16x25 2 20x25 4 24x24 MERV 14 2 16x25 2 20x25 4 24x24 OPTIONAL ERV Type Molecular Sieve Diameter depth in 48 4 48 6 54 4 60 6 66 4 66 6 OPTIONAL ERV FILTERS Quantity Size in with 48 in ERV 6 18x25 6 18x25 6 18x25 6 18x25 with 54 in ERV 6 20x30 6 20x30 6 20x30 6 20x30 with 60 in ERV 10 16x32 10 16x3...

Page 24: ...ttal Attach the ductwork to the roof curb Do not attach duct directly to the unit HORIZONTAL SUPPLY CONNECTIONS For horizon tal supply connections ductwork openings are shown in the DOAS Builder generated submittal The 62X units do not have horizontal return connections Step 5 Install External Trap for Condensate Drain The unit s 3 4 in condensate drain connection is lo cated on the side of the un...

Page 25: ...250 0 F 121 1 C Reduced airflow may be caused by restrictions upstream or downstream of the circulating air blower such as dirty or blocked filters or restriction of the air inlet or outlet to the unit The high limit switch will shut off the gas when the temperature reaches its setpoint and then resets when the temperature drops 30 0 F 16 7 C below the setpoint initiating a heater ignition The hea...

Page 26: ...is located inside the control panel of each unit When installing units without a factory installed disconnect provide disconnect per NEC Article 440 or local codes For non fused disconnects size the disconnect according to the sizing data provided on unit nameplate If a fused disconnect is used deter mine the minimum size for the switch based on the disconnect sizing data and then coordinate the d...

Page 27: ...ative humidity conditions A separate ancillary device must be installed to provide primary space heating cooling and humidity control The controller is turned on by a switch located on its front upper left corner Several Occupancy Control options are avail able for starting the unit These can be selected from the Equip ment Touch display pad on the Controls screen requires user password The Reside...

Page 28: ...inutes the controller will issue an alarm and the com pressor stops When the DX LAT warms back up to 55 F or more the compressor turns back on If there is a cur rent call for first stage cooling and compressor no 1 is shut down due to an alarm HPS1 LPS1 or DX LAT1 compressor no 2 will be turned on to take its place until it returns Hot Gas Reheat HGRH On Off When the SAT is 1 F adjustable or more ...

Page 29: ...essure Switch HPS1 If HPS1 is open com pressor no 1 will turn off and the controller will issue an alarm After manually resetting HPS1 the HPS1 alarm will reset Following a minimum time off delay com pressor no 1 will turn on If the controller records 3 high pressure start restart failure incidents within 1 hour compressor no 1 is locked out and the controller will issue an alarm The compressor lo...

Page 30: ...ally enables one to set the operational parameters of the following unit components if equipped for unit start up troubleshooting or testing and balancing Supply Fan VFD or ECM Exhaust Fan VFD or ECM Modulating HGRH Heating Digital Compressors When the unit restarts it will automatically default back to the inputs that were previously entered during manual override AMBIENT AIR TEMP 95 F 85 F 75 F ...

Page 31: ...G CONNECTIONS ON UNITS RATED 575V MSP WM BL 14 BK 14 L3 T3 L2 T2 L1 T1 R 14 BL 14 BK 14 R 14 WM G 14 BL 14 BK 14 R 14 WMVFD U L1 V L2 W L3 G 14 MSP OF1 L3 T3 L2 T2 L1 T1 OFM1 G 14 OF1VFD U L1 V L2 W L3 G 14 BL 14 BK 14 R 14 BL 14 BK 14 R 14 BL 14 BK 14 R 14 White 0 10vdc OUTDOOR FAN MOTOR VFD OF1VFD CONTROL TERMINAL STRIP CC1 A1 Red 12 30VDC OF1VFD 24V 8 6 DI3 10 DI1 AI1 DI C 7 2 Black Common R Y ...

Page 32: ... 2017 DWN LWF CHK DS UNLOADER SOLENOID 1 TB1 HP1 TB1 CC1 Enable Compressor 1 Y1 C BL A2 A1 CONTINUED ON SHEET 3 1 2 3 4 79 Y HP1 R R HPR1 14 13 BL C Y 266 TB1 HP1 Y C BL TB1 Enable Unloader 1 U1 PR T3 96 VA CLASS 2 50 60HZ 24V TB4 G 14 Line Voltage TB4 K3 K4 NOTE SEE T3 ON SHEET 1 FOR WIRING CONTINUATION PM AUX NO C R PM NOTE SEE T1 ON SHEET 1 FOR WIRING CONTINUATION T1 50 60HZ 0V 208V 230V 460V 1...

Page 33: ...80 181 182 183 184 185 TB1 TB1 TB1 TB1 TB1 TB1 TB1 149 TB1 TB1 TB1 TB1 TB1 R R Enable Wheel Motor WM Enable Outdoor Air Damper Actuator OD PR OADA BK R BL CONTINUED ON SHEET 2 Enable Hea ng BL C HR 14 13 Heat Enable W W1 BCTL BL See separate Modula ng Gas Furnace Drawing EF1R SF1R BL 14 13 Enable Supply Fan G Enable Hot Gas Reheat RH PR BL PK 50 RHR 14 13 BK 136 207 219 425 24VAC BOS1 RHR BL BK 12...

Page 34: ...LL SHIELD WIRES TO CLOSEST TB A or TB D GND TERMINAL AT THE CONTROL PANEL 4 MRV1 W BK G R GY RHR 9 1 PR T2 24V 5 24V 40 VA CLASS 2 60 HZ O BR TB1 R C TB3 K2 K1 4 BK W O BR 0 10VDC Output Gnd UO 4 See ALC PAGE MRC MODULATING REHEAT CONTROL VALVE BOARD For normal opera on the CN1 jumper should be at the 0 10V pin posi on SW1 dip switch bank should be set as shown below based oﬀ the modula ng valve u...

Page 35: ...GNAL WIRING AS SHORT AS POSSIBLE LON 1 2 Port 2b ECHELON LonWorks Card op onal FOR FIELD BAS OR EMS CONNECTION 3V Li um Ba ery CR 123A Error Codes Chase OK 0 Download Required 1 Control Program Error 2 RAM full 3 Comm set up error 4 System error 8 Forma ng Blinking Dot Run 8 DO NOT APPLY 24V AC TO UNIVERSAL OUTPUTS External 24VDC relay coil only 24V AC R TB A GND GND 24VDC USE SHIELDED WIRE FOR AL...

Page 36: ...efualt PR PR PK PK GY BK Y Y GY W W GY BK GY BK W G ALC EXPANDER BOARD CONNECTIONS FACTORY WIRING FIELD WIRING TERMINAL BOARD SYMBOL LEGEND WIRE ALL SHIELD WIRES TO CLOSEST TB A or TB D GND TERMINAL AT THE CONTROL PANEL 4 Power on Xnet Baud Gnd 24VAC I O FLEX EX8160 EXPANDER 0843P 0548 R Gnd 16 UI 16 15 16 Xnet Remote Expansion 15 1 2 4 5 3 7 8 6 10 11 9 13 14 12 BO 8 Gnd Xnet Xnet Gnd 14 UI 15 13...

Page 37: ...08 230 VOLT 460 VOLT 575 VOLT 03 12 AWG 12 AWG 12 AWG 04 12 AWG 12 AWG 12 AWG 05 12 AWG 12 AWG 12 AWG 06 12 AWG 12 AWG 12 AWG 07 10 AWG 12 AWG 12 AWG 08 10 AWG 12 AWG 12 AWG COMPRESSOR MINIMUM WIRESIZE ITEM FUNCTIONAL DESIGNATION LINENUMBER DESCRIPTION 101 SFR 148 Supply Fan Motor Relay 102 MSP SF 38 Motor Starter Protec on Supply Fan 103 SF VFD 38 Supply Fan Variable Frequency Drive 104 CC1 110 C...

Page 38: ...rnace 6 amps fuse Dual Gas Furnace BK 14 BL 14 PDB RELAY COIL NORMALLY OPEN CONTACTS IDENTIFIABLE TERMINAL NORMALLY CLOSED CONTACTS HEATER FACTORY WIRING EARTH GROUND CHASSIS PANEL GROUND SYMBOL LEGEND POWER SUPPLY TERMINAL CONNECTION Isola on Relays TERMINAL BOARD FACTORY WIRING TIMER RELAY TR1 090LH15 RHLGP A AUTO RECYCLE HIGH LOW GAS PRESSURE SWITCH OPTIONAL Fenwall 35 61 xxxxx Igni on Control ...

Page 39: ...greasing be sure fittings are clean and free from dirt Remove grease relief plug or plate and using a low pressure grease gun pump in the required grease Do not over grease Re lubrication intervals are specified in Table 11 After re lu bricating allow motor to run for 10 minutes before replacing relief hardware Condensing Fans Manually rotate to ensure free movement Check that all fan mounting har...

Page 40: ...ired GAS VALVE Check that gas valve seat is not leaking BURNERS Soft brush or vacuum inside burner at burner ports and at air inlet between burner and manifold pipe to eliminate accumulation of lint and or dirt HEAT EXCHANGER Inspect for cracks sagging bend ing or distortion Clean with vacuum and or stiff brush DRAFT INDUCER Clean with compressed air or vacu um VENT PIPE TERMINAL Venting must be i...

Page 41: ... or non condensables is suspected the refrigerant must be reclaimed through a service port The system must then be re evacuated to 250 500 microns and recharged The filter drier should also be replaced before charging Defective high pressure switch Replace switch Restriction in discharge or liquid line Check discharge and liquid line pressures Check TXV Compressor cuts out on ther mal overload Low...

Page 42: ...efrigerant charge Check subcooling Verify superheat Defective high or low pressure control Check high or low pressure switch Cycling on internal overload Possible tight bearings see above Defective expansion valve Check TXV and superheat Poor air distribution Check ductwork for recirculation High discharge pressure See above high discharge pressure Leaking discharge valves in compressor See above ...

Page 43: ...on of the solenoid is intermittent Determine if problem is caused by supply voltage solenoid or excessive MOPD Make changes nec essary to correct problem Regulator leakage Dirt in regulator causing seat to remain open Clean regulator Install strainer Worn or eroded seating surface on regulator Replace defective part Regulator hunting chattering with large fluctuations in con trolled pressures Regu...

Page 44: ...tion control by removing 24V power to ignition control terminal 24VAC Dirty burners Clean burners to ensure proper flame carryover Faulty spark igniter Check if connecting lead or spark igniter are dam aged If yes replace Faulty flame sensor Check if connecting lead or flame probe are dam aged and or touching earthed components If yes replace Incorrect gas pressure at gas valve Check that the gas ...

Page 45: ... AV 326 Holding Register 40091 ADF 95 Clg 2B Enable LDB clg2b_en_ldb R W AV 330 Holding Register 40099 ADF 99 Clg 2B Enable SP clg2b_en_sp R W AV 328 Holding Register 40095 ADF 97 nviClg2bEnSp SNVT_count_inc 9 Clg 2B Enable UDB clg2b_en_udb R W AV 329 Holding Register 40097 ADF 98 CO2 Dead Band co2_db R W AV 217 40033 ADF 24 nviCo2Db SNVT_ppm 29 CO2 FAIL co2_failure R ALM 854 Discrete Input 10106 ...

Page 46: ...rete Input 10114 BD 125 EF APS Override Time efaps_ovrd_time R W AV 383 Holding Register 40177 ADF 143 EF APS Status ef_aps_stat R BV 222 Discrete Input 10016 BD 16 EM SHTDN em_shtdn_alarm R ALM 895 Discrete Input 10147 BD 158 Emerg Shutdown Enable emsd_en R W BV 821 Coil 40 BD 92 nviEmShtdnEn SNVT_switch 95 Emerg Shutdown Status emsd_status R W BV 822 Discrete Input 10082 BD 93 nvoEmShtdnSt SNVT_...

Page 47: ... BV 101 Coil 1 BD 1 nviOccEn SNVT_switch 95 Operating Condition op_cond R AV 111 Input Register 30003 ADF 3 nvoOpCond SNVT_count_inc 9 Operating Mode op_mode R AV 112 Input Register 30005 ADF 4 nvoOpMode SNVT_count_inc 9 Optimal Start On opt_start_on R BV 902 Discrete Input 10152 BD 164 nvoOptStartOn SNVT_switch 95 Purge Cycle purge_cycle R W AV 547 Holding Register 40211 ADF 174 Purge Time On pur...

Page 48: ... 107 WExAT Status wexat_stat R AV 239 Input Register 30037 ADF 35 nvoWexatStat SNVT_temp_p 105 WM CS Override Time wmcs_ovrd_time R W AV 385 Holding Register 40181 ADF 145 ZAT FAIL zat_failure R ALM 852 Discrete Input 10104 BD 115 ZAT From BAS zat_bas R W AV 210 Holding Register 40027 ADF 19 nviZatBas SNVT_temp_p 105 ZAT Ratio zat_ratio R W AV 322 40083 ADF 91 nviZatRatio SNVT_temp_p 105 ZAT Statu...

Page 49: ...ceptable The condenser fan s rotation is not inhibited The air cooled condenser coil is free from debris and defects 62D only The water cooled condenser piping has been installed and is free from leaks 62R only The water cooled condenser has adequate water flow and freeze protection 62R only Condenser water shutoff valves and strainer have been installed in the condenser water piping 62R only The ...

Page 50: ...s are free from obstruction Verify exhaust relief hood and screen if equipped has been installed Verify barometric relief damper equipped has been installed and moves freely Verify the unit service clearances are in accordance with manufacturers recommendation Verify if the supply and exhaust duct pressure transducers if equipped have been installed Verify leaving air supply air temperature sensor...

Page 51: ...EMPERATURE CIRCUIT NO 1___________ F CIRCUIT NO 2 ____________ F SUCTION PRESSURE CIRCUIT NO 1___________ IN WG CIRCUIT NO 2 ____________ IN WG SUPERHEAT CIRCUIT NO 1___________ F CIRCUIT NO 2 ____________ F LIQUID TEMPERATURE CIRCUIT NO 1___________ F CIRCUIT NO 2_____________ F LIQUID PRESSURE CIRCUIT NO 1___________ IN WG CIRCUIT NO 2 ____________ IN WG SUBCOOLING CIRCUIT NO 1___________ F CIRC...

Page 52: ...LING LAT 70 F F Cooling Suction Line Temp COOLING SLT 45 F F Cooling OAT ECAT Low Limit CLG OAT ECAT 55 F F Cooling Zone Air Temp COOLING ZAT 72 F F Leaving Air Temp Low Limit LAT LOW LIMIT 40 F F Leaving Air Temp High Limit LAT HIGH LIMIT 130 F F Heating OAT ECAT HTG OAT ECAT 58 F F Dehumidify OAT ECAT DEHUMID OAT ECAT 60 F F Heating Leaving Air Temp HEATING LAT 72 F F Heating Zone Air Temp HEATI...

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