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Carrier 38AUQ 16 Series, Installation, Start-Up And Service Instructions Manual

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Carrier 38AUQ 16 Series Installation, Start-Up And Service Instructions Manual Download Page 42

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Summary of Contents for 38AUQ 16 Series

Page 1: ...zer 24 Heating 24 Defrost Cycle 24 Supplemental Heating Emergency Heating 25 Cooling and Heating Shutdown 25 ROUTINE SYSTEM MAINTENANCE 25 Quarterly Inspection and 30 days after initial start 25 SERVI...

Page 2: ...efrigerant systems operate at higher pressures than standard R 22 systems Do not use R 22 service equipment or components on Puron refrigerant equipment WARNING PERSONAL INJURY AND ENVIRONMENTAL HAZAR...

Page 3: ...structions in this installation manual 7 Operate the system for 10 hr Monitor the pressure drop across the suction line filter drier If pressure drop exceeds 3 psig 21kPa replace suction line and liq...

Page 4: ...4 C10675 Fig 2 38AUQ 25 Unit Dimensions 38AUQ...

Page 5: ...psig 27 44 27 44 COMPRESSOR Model ZP83 2 ZP103 2 Oil Charge A B oz 60 110 Speed RPM 3500 3500 OUTDOOR COIL Material Al Cu Coil Type Round Tube Plate Fin RTPF Rows Fins Per Inch FPI 2 17 Total Face Are...

Page 6: ...PRESSOR Model ZP83 2 ZP103 2 Oil Charge A B L 1 7 3 2 Speed r s 58 58 OUTDOOR COIL Material Al Cu Coil Type Round Tube Plate Fin RTPF Rows Fins Per Meter Fins m 2 17 Total Face Area m2 4 4 4 6 OUTDOOR...

Page 7: ...a x e T P T E G n o i t a c o l g n i r u t c a f u n a M 5 r e b m u n l a i t n e u q e S 6 10 1 2 3 4 5 6 7 8 9 10 4 8 1 0 G 1 2 3 4 5 POSITION NUMBER TYPICAL Year of manufacture 10 2010 3 4 C10799...

Page 8: ...and above S The unit may 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 Figs 1 and 2 for weight...

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

Page 10: ...t low outdoor ambient temperatures Wire the solenoid according to the unit label diagram UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage Failure to use a solenoid valv...

Page 11: ...exposed to outdoor conditions Closed cell foam insulation with a thermal conductivity of 0 28 Btu S in ft2 S h S F 0 04 W m S C Evacuation Dehydration Evacuate and dehydrate the connected refrigerati...

Page 12: ...moving the black wire with the 1 4 in female spade connector from the 230 v connection and moving it to the 208 v 1 4 in male terminal on the primary side of the transformer Refer to unit label diagr...

Page 13: ...a source elsewhere in the building Observe national and local codes when selecting wire size fuse or breaker requirements and disconnect switch size and location Route 125 v power supply conductors in...

Page 14: ...late as shown in Fig 12 Remove two slot fillers in the bottom of the cover to permit service tool cords to exit the cover Check for full closing and latching RECEPTACLE NOT INCLUDED COVER WHILE IN USE...

Page 15: ...for additional features which might require additional conductors in the cable For wire runs up to 50 ft 15 m use no 18 AWG American Wire Gage insulated wire 35 C minimum For 50 to 75 ft 15 to 23 m us...

Page 16: ...t outlet FLA Full Load Amps LRA Locked Rotor Amps MCA Minimum Circuit Amps Protection NEC National Electrical Code PWRD CO Powered convenient outlet RLA Rated Load Amps UNPWR CO Unpowered convenient o...

Page 17: ...e starting compressor If pressures do not equalize readily charge vapor on low side of system to assure charge in the evaporator Refer to GTAC II Module 5 Charging Recover Recycling and Reclamation fo...

Page 18: ...o 90 minutes later Advanced Scroll Temperature Protection will reset automatically before the motor protector resets which may take up to 2 hours Start Unit Set the space thermostat to a set point abo...

Page 19: ...19 C10784 Fig 16 38AUQ 16 Charging Chart 38AUQ...

Page 20: ...20 C10785 Fig 17 38AUQ 25 Charging Chart 38AUQ...

Page 21: ...21 C10786 Fig 18 38AUQ 16 Power Schematic 208 230 3 60 shown 38AUQ...

Page 22: ...22 C10787 Fig 19 38AUQ 25 Power Schematic 208 230 3 60 shown 38AUQ...

Page 23: ...23 C10788 Fig 20 38AUQ 16 25 Control Schematic 38AUQ...

Page 24: ...y economizer Heating 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 the re...

Page 25: ...checked S Fan shaft bearing locking collar tightness checked S Condensate drain checked S Blower motor amperage Outdoor Section S Fan motor mounting bolts tightness S Compressor mounting bolts S Fan b...

Page 26: ...eader located at the entrance to each evaporator coil circuit path These are non adjustable Service requires replacing the entire liquid header assembly To check the indoor coil disconnect the supply...

Page 27: ...stalled loss of charge pressure switch LOC has open close settings which do not provide indoor coil freeze protection The control provides a location on terminal board TB2 to add a field supplied indo...

Page 28: ...mpressor or Stage 1 Heating both compressors run Table 8 38AUQ Defrost Board I O and Jumper Configurations Inputs Point Name Type of I O Connection Pin Number Unit Connection Note G Fan DI 24 vac P2 3...

Page 29: ...rrupted On restart in Heating the defrost control will resume unit operation at the point in the run period where it was last operating Defrost Thermostats These are temperature switches that monitor...

Page 30: ...Fans Service Valves C10791 Fig 26 38AUQ 16 Exterior Outdoor Coil Outdoor Coil Defrost Thermostat DFT Defrost Thermostat DFT High Flow Access Ports LOC LOC HPS HPS C10792 Fig 27 38AUQ 16 Interior 38AU...

Page 31: ...ice Valves C10793 Fig 28 38AUQ 25 Exterior Outdoor Coil Outdoor Coil Defrost Thermostat DFT Defrost Thermostat DFT High Flow Access Port HPS HPS LOC LOC High Flow Access Port C10794 Fig 29 38AUQ 25 In...

Page 32: ...ions 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 bli...

Page 33: ...Yellow ALERT Flash Code 3 Short Cycling Compressor is running only briefly LOCKOUT 1 If low pressure switch is open a Low refrigerant charge b Evaporator blower is not running c Evaporator coil is fr...

Page 34: ...VAC when off Outdoor 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...

Page 35: ...leach or acid 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 tu...

Page 36: ...ilable 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 HVACPar...

Page 37: ...ing motor or capacitor Replace Restriction in refrigerant system Locate restriction and remove Compressor Operates Continuously Dirty air filter Replace filter Unit undersized for load Decrease load o...

Page 38: ...liquid line S POE oils absorb moisture rapidly Do not expose oil to atmosphere S POE oils may cause damage to certain plastics and roofing materials S Wrap all filter driers and service valves with w...

Page 39: ...the low ambient relay LAR The LAS control temperatures are open 42_F 5_F close 57_F 5_F open 5 5_C 2 8_C close 13 9_C 2 8_C To override the speed control for full fan speed operation during service or...

Page 40: ...1 2 25 3 4 38 1 2 38SUQ 25 LEFT SIDE 32 7 8 33 5 8 34 3 8 43 1 8 4 1 4 13 1 4 22 1 4 31 1 4 40 1 4 BACK 47 3 4 48 1 2 49 1 4 43 1 8 4 1 4 13 1 4 22 1 4 31 1 4 40 1 4 RIGHT SIDE 61 1 8 61 7 8 62 5 8 43...

Page 41: ...41 C10363 Fig 35 Wind Baffles Fabrication 38AUQ...

Page 42: ...42 C10366 Fig 36 15 Ton Wind Baffle Brackets Fabrication 38AUQ...

Page 43: ...43 RIGHT BACK LEFT FRONT BOTTOM BRACKET TOP BRACKETS C10367 Fig 37 Wind Baffle Installation 15 Ton Units 38AUQ...

Page 44: ...44 RIGHT BACK LEFT FRONT C10368 Fig 38 Wind Baffle Installation 20 Ton Units 38AUQ...

Page 45: ...45 38AUQ...

Page 46: ...10 W Morris St D Indianapolis IN 46231 Printed in U S A Edition Date 08 10 Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations Catal...

Page 47: ...RE ALL WIRING 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 PRO...

Page 48: ...PRESSURE CIR 1 CIR 2 SUCTION LINE TEMP CIR 1 CIR 2 LIQUID PRESSURE CIR 1 CIR 2 LIQUID LINE TEMP CIR 1 CIR 2 ENTERING OUTDOOR UNIT AIR TEMP LEAVING OUTDOOR UNIT AIR TEMP INDOOR UNIT ENTERING AIR DB dry...

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