Carrier 38AUQ Installation, Start-Up And Service Instructions Manual Download

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Summary of Contents for 38AUQ

Page 1: ...mental Heating Emergency Heating 22 Cooling and Heating Shutdown 22 ROUTINE SYSTEM MAINTENANCE 22 Quarterly Inspection and 30 days after initial start 22 SERVICE 23 35 Refrigeration System 23 Compress...

Page 2: ...ersonal injury or death WARNING signifies hazards which could result in personal injury or death CAUTION is used to identify unsafe practices which may result in minor personal injury or product and p...

Page 3: ...itable for re use with R 410A based on its condition determine the relative locations and elevation differences between outdoor section 38AUQ and indoor section 40RUQ and then check the sizes of the e...

Page 4: ...ONTROL BOX SIDE 4B IRCHEB _0_7 PER _EC WITH EXCEPTION OF THE CLEA_ARCE FOR THE OUTBOOR COIL AS STATED I_ ROTE IB A REMOVABLE FENCE OR BARRICADE REQUIRES NO CLEARANCE BRITS MAY BE INSTALLED OR COMBUSTI...

Page 5: ...1 4 22 6 000 610 2 1100 1 4 22 6 000 610 2 1100 1 4 22 6 000 610 OUTDOOR COIL Oty Face Area sq ft total 17 5 Rows Fins per inch FPI 2 17 CONTROLS Pressurestat Settings psig High Cutout 630 _ 10 Cut i...

Page 6: ...a sq m total Rows Fins per Meter Fins m CONTROLS Pressurestat Settings kPa High Cutout Cut in Low Cutout Cut in 2 18 2 18 2 18 1 4 1 4 1 4 560 560 560 2832 2832 2832 610 610 610 1 Round Tube Plate Fin...

Page 7: ...NATES Week of manufacture fiscal calendar Year of manufacture 11 2011 Manufacturing location G ETR Texas USA Sequential number Fig 3 Serial Number Nomenclature Cl1034 INSTALLATION Jobsite Survey Compl...

Page 8: ...be mounted on a level pad directly on the base channels or mounted on raised pads at support points See Tables 1A and 1B for unit operating weights See Fig 1 for weight distribution based on recommen...

Page 9: ...nd outdoor units check to ensure that the separation is within allowable limits Relocate equipment if necessary Provide Safety Relief I If local codes dictate an additional safety relief device purcha...

Page 10: ...ed Locate the sightglass es between the outlet of the filter drier and the TXV inlet Refer to Table 5 for recommendations on refrigeration specialties Select the filter drier for maximum unit capacity...

Page 11: ...of these service fittings during tube brazing to prevent the formation of copper oxides inside the tubes at brazed joints Factory High Flow Access Port Field Service Port Schrader core Service Valve w...

Page 12: ...ed operation of the convenience outlet If an always energized convenience outlet operation is desired connect the source leads to the line side of the unit mounted disconnect Check with local codes to...

Page 13: ...pt 208 230 v units are factory wired for the voltage shown on the nameplate If the 208 230 v unit is to be connected to a 208 v power supply the control transformer must be rewired by moving the black...

Page 14: ...I RED YEL H1 H3 230 L2 BLU GRA H2 H4 L1 RED H1 460 480 Splice BLU YEL H2 H3 L2 GRA H4 L1 RED H1 575 600 L2 GRA H2 Fig 11 Powered Convenience Outlet Wiring Installing Weatherproof Cover A weatherproof...

Page 15: ...to 75 ft 15 to 23 m use no 16 AWG insulated wire 35 C minimum For over 75 ft 23 m use no 14 AWG insulated wire 35 C minimum All wire sizes larger than no 18 AWG cannot be directly connected to the the...

Page 16: ...19 1 30 18 86 Legend and Notes for Table 8 LEGEND BRKR Circuit breaker Q mS CO Convenient outlet FLA Full Load Amps C LRA Locked Rotor Amps MCA Minimum Circuit Amps Protection NEC National Electrical...

Page 17: ...he amount of refrigerant added must be at least 80 of the operating charge listed in the Physical Data table Tables 1A and 1B on pages 4 and 5 Allow high and low side pressures to equalize before star...

Page 18: ...low space temperature UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage Never charger liquid into the low pressure side of the system Do not overcharge During charging o...

Page 19: ...CHARGING CHART PURON ALL CONDENSER FANS OPERATING 7 5 TONNE TABLEAU DE CHARGE PURON TOUTES LES SOUFFLERIES DE CONDENSATION EN FONCTIONNEMENT 190 240 290 540 90 440 490 PRESSURE AT LIQUID VALVE PSIG PR...

Page 20: ..._AL UNMA_KED OFT DEFROST THERMOSTAT WITH TYPE BR C WIRE OR ITS EOBIVALENT EO_IP EQUIPmEnT TERMINAL BLOCK FPT FREEZE PROTECTION THERMOSTAT B USE COPPER CONDUCTORS ONLY F_ FUSE 3 COMPRESSORS AND FAN _OT...

Page 21: ...ssory economizer Heating i When the thermostat calls for first stage heating terminal W1 is energized The 38AUQ s Defrost Board DFB receives this input at P2 7 The DFB removes the output at P3 7 RVS1...

Page 22: ...demand or when selected as emergency heat mode When the space heating demand decreases below the 2nd stage limit or emergency heat is turned oft W2 is de energized and supplemental heat is turned off...

Page 23: ...d and prevent lubric ant run offs through the louvered openings in the base pan 4 Perform required service 5 Remove and dispose of any oil contaminated material per local codes Liquid Line Filter Drie...

Page 24: ...wn whenever compressor is not operating The heater is wired to cycle with the compressor the heater is off when compressor is running and on when compressor is off The crankcase heater will operate as...

Page 25: ...20 secs Forced Defrost defrost runs for 30 secs if DFT1 is open DFB Power 24 V at Pin P3 1 COM at P3 3 required in all modes MODE COOL OFF After COOL HEAT 1 HEAT 2 OFF After HEAT 1 DEFROST During HEA...

Page 26: ...ontinuous run period the defrost control will test for a need to defrost DVF1 controls the start and termination of the defrost cycle If DVF1 is still open the defrost test run window is closed and th...

Page 27: ...This mode ends after the Defrost cycle Shorting the jumpers for a period of 5 to 20 secs bypasses the remaining continuous run period and places the unit in a Forced Defrost mode If the DFT is closed...

Page 28: ...Fans Service Valves Fig 25 38AUQ 07 Exterior C11045 Outdoor Coil Defrost Thermostat DFT LOC HPS High Flow Access Ports Fig 26 38AUQ 07 Interior 28 C11046...

Page 29: ...Fig 27 38AUQ 08 Exterior Service Valves Cl1047 Defrost DFT LOC Outdoor Coil High Flow Access Ports Fig 28 38AUQ 08 Interior 29 Cl1048...

Page 30: ...Fans Fig 29 38AUQ 12 Exterior Service Valves C11049 Outdoor Coil Defrost DFT LOC HPS High Flow Access Ports Fig 30 38AUQ 12 Interior 30 C11050...

Page 31: ...86 The ALERT LED indicates an abnormal condition exists in the system through a flash code The ALERT LED will blink a number of times consecutively pause and the repeat the process The number of blink...

Page 32: ...PROT circuit maximum 1 Amp 24 V AC wired directly to PROT terminal High head pressure 2 Condenser coil poor air circulation dirty blocked damaged 3 Condenser fan is not running 4 If low pressure switc...

Page 33: ...Fans Each fan is supported by a formed wire mount bolted to the fan deck and covered with a wire guard Fan motors have permanently lubricated bearings 1 Shut off unit power supply Install lockout tag...

Page 34: ...or basic cleaners should not be used to clean outdoor or indoor coils of any kind These cleaners can be very difficult to rinse out of the coil and can accelerate corrosion at the fin tube interface...

Page 35: ...from the Replacement Components Division s Electronic Parts Information Catalog EPIC EPIC is available at Totaline stores distributor and service office parts departments and on line at HVACPartners...

Page 36: ...ace heating motor or capacitor Restriction in refrigerant system Locate restriction and remove Compressor Operates Dirty air filter Replace filter Continuously Unit undersized for load Decrease load o...

Page 37: ...o not install a suction line filter drier in liquid line POE oils absorb moisture rapidly Do not expose oil to atmosphere POE oils may cause damage to certain plastics and roofing materials Wrap all f...

Page 38: ...p units the speed control bypass relay SCB is used to bypass the speed control during the heating mode resulting in full fan speed at all times To override the speed control for full fan speed operati...

Page 39: ...40 3 4 41 1 2 35 1 4 4 1 4 11 1 4 18 1 4 25 1 4 32 1 4 RIGHT SIDE 25 25 1 2 26 1 4 35 1 4 4 1 4 11 1 4 18 1 4 25 1 4 32 1 4 LEFT SIDE 28 1 2 29 29 3 4 43 1 8 1 1 4 9 1 4 17 1 4 25 1 4 33 1 4 41 1 4 38...

Page 40: ...I 3 9 o oo 0 85 TYP _I_0 47 TYP c B A G F I 10 MIN L I OO MINIMUM TYP _ _9132 DRILL BOTH SIDES OF BAFFLE...

Page 41: ...41...

Page 42: ...Morris St Indianapolis IN 46231 Printed in U S A Edition Date 06 11 Manufacturer reserves the right to change at any time specification8 and design8 without notice and without obligations Catalog No...

Page 43: ...G TERMINALS including main power supply TIGHT Y N HAS CRANKCASE HEATER BEEN ENERGIZED FOR 24 HOURS Y N INDOOR UNIT HAS WATER BEEN PLACED IN DRAIN PAN TO CONFIRM PROPER DRAINAGE Y N ARE PROPER AIR FILT...

Page 44: ...G MEASUREMENTS COOLING HEATING VAPOR PRESSURE SUCTION LINE TEMP LIQUID PRESSURE LIQUID LINE TEMP ENTERING OUTDOOR UNIT AIR TEMP LEAVING OUTDOOR UNIT AIR TEMP INDOOR UNIT ENTERING AIR DB dry bulb TEMP...

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Carrier 38AUQ, Installation, Start-Up And Service Instructions Manual

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