Carrier 38AQ Specifications

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GEMINI TM
38AQ007
38ARQ008,012
38AQS016
Split System Heat Pumps
50/60 Hz
Installation, Start-Up and Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS ...................... 1
INSTALLATION ................................ 1-17
General .......................................... l
Step 1 -- Complete Pre-lnstallation Checks ...... 1
Step 2 -- Rig and Mount Unit ..................... 1
Step 3 -- Complete Refrigerant Piping
Connections .................................. 10
Step 4 -- Complete Electrical Connections ...... 11
PRE-START-UP ............................... 18, 19
START-UP .................................... 19-21
SEQUENCE OF OPERATION ................. 21,22
SERVICE ..................................... 22-27
TROUBLESHOOTING ......................... 28, 29
START-UP CHECKLIST .................. CL-I, CL-2
SAFETY CONSIDERATIONS
Installing, stalling up, and servicing air-conditioning equip-
ment can be hazardous due to system pressures, electric;d
components, and equipment location (roofs, elevated struc-
tures, etc.).
Only tnuned, qualified installers and service mechanics
should install, start-up, and service this equipment. Untrained
pel_onnel can perforru basic maintenance functions such as
cleaning coils. All other operations should be performed by
trained service pel_onnel.
When working on the equipment, observe precautions in
the literature and on tags, stickers, and labels attached to the
equipment.
Follow all safety codes. Wear safety glasses and work
gloves. Keep quenching cloth and fire extinguisher nem_y
when brazing. Use care in handling, rigging, and setting bulky
equipment.
Before installing or servicing system, ¢flways turn off main
power to system and inst_fll lockout tag on disconnect.
There may be more than one disconnect switch. Electric_d
shock can cause personal injury.
INSTALLATION
General -- The split systeln heat pump units described in
this book should only be used with fire40RMQ indoor pack-
aged air handler sections.
Step 1 -- Complete Pre-lnstallation Checks
UNCRATE UNIT- Remove unit packaging except for the
top skid assembly, which should be left in place until after the
unit is rigged into its final location.
INSPECT SHIPMENT -- File claim with shipping company
if shipment is damaged or incomplete.
CONSIDER SYSTEM REQUIREMENTS
Consult local building codes and National Electrical
Code (NEC, U.S.A.) for special installation requirements.
Allow sufficient space for airflow clearance, wiring,
refi'igerant piping, and servicing unit. See Fig. 1-3 for
unit dimensions. Figure 4 shows typical component loca-
tions for 38AQS016 units.
Locate unit so that outdoor coil airflow is unrestricted on
all sides and above.
Unit may be mounted on a level pad directly on the base
channels or mounted on raised pads at support points.
See Tables IA-ID for unit operating weights.
Step 2 -- Rig and Mount Unit
Be sure unit panels are securely in place prior to rigging.
Be cgueful rigging, handling, and installing unit. Improper
unit location can cause system malfunction and material
damage. Inspect base rails for any shipping damage and
make sum they are fastened securely to unit before rigging.
RIGGING -- These units are designed for overhead rigging.
Refer to rigging label for preferred rigging method. Spreader
bars am not required if top crating is left on unit. All panels
must be in place when rigging. As lin-ther protection for coil
faces, plywood sheets may be placed against sides of unit,
behind cables. Run cables to a centrtd suspension point so that
angle from the horizontal is not less than 45 degrees. Raise and
set unit down careliflly.
If it is necessary to roll the unit into position, mount the unit
on field-supplied rails placed lengthwise under the unit using a
minimum of 3 rollers. Apply force to the rails, not the unit. ff
the unit is to be skidded into position, place it on a large pad
and di'ag it by the pad. Do not apply any force to fire unit.
Raise from above to lift unit from the mils or pad when unit
is in final position.
After unit in position, remove all shipping materials and top
crating.
LOCATE UNIT- For service access and unrestricted air-
flow, provide clearance on each end and side of unit. Position
unit so that there is unrestricted airflow above unit.
NOTE: Before mounting unit, remove holddown brackets and
release skid.
If conditions or local codes require unit to be fastened to
pad, use the mounting holes in the base rails.
MOUNT UNIT -- The unit may be mounted on a solid, level
concrete pad, on accessory mounting legs, or on field-supplied
raised supports at each mounting position. (Note that mounting
hardware is field supplied.)
Bolt unit securely to pad or supports after unit is in position
and is level. Be sure to mount unit level to ensure proper oil
return to compressors. Mounting holes on unit can be used to
secure unit to vibration isolators, if required.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111 Catalog No. 533-80118 Printed in U.S,A, 38A-19SI Pg 1 9-04 Replaces: 38A-16SI
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1 2 3 4 5 6 ... 31 32

Summary of Contents

Page 1

GEMINI TM38AQ00738ARQ008,01238AQS016Split System Heat Pumps50/60 HzInstallation, Start-Up and Service InstructionsCONTENTSPageSAFETY CONSIDERATIONS ..

Page 2 - @ 9-3/4t1-I/8

Step 3 -- Complete Refrigerant Piping Con-nections- Refi'igerant lines nmst be cm'efully designedand constructed to ensure equipment reliabi

Page 3 - ,,D.7[459]

Table 4 -- Refrigerant Specialties Part NumbersUNIT LIQUID LINE LIQUID LINE LLSV COIL SIGHT GLASS FILTER DRIERSIZE SOLENOID VALVE (LLSV)38AQ007 1/2&qu

Page 4 - END VIEW

Perloc_flcodelequimments,provideanadequatefuseddis-connectswitchwithinsightofunitandoutofreachofchildren.Provisionforlockingswitchopen(off)isadvisable

Page 5 - Fig. 4

Table 7 -- Electrical DataUNIT38AQ007ARQ008ARQ012AQS016FACTORY-INSTALLEDOPTIONNONENONE OR DISCONNECTCONVENIENCE OUTLETNONE OR DISCONNECTCONVENIENCE OU

Page 6 - 5/8 1/2 1/2 5/8

460V TRAN CONFIG_ I I! I !,i !!_{_ TRf, NFig. 9 -- Wiring Diagram -- 38ARQ008,012 -- Control TransformerTHERMOSTAT(3-(3-(3-C)-@(3-C)-TO ELECTRICHEATER

Page 7

]FM40RMQ UNiT WIRINGREMOVEJUMPERLLEGENDEQUIP -- EquipmentGND -- GroundHC -- Heater ContactorIFC -- Indoor Fan ContactorIFM -- Indoor Fan MotorNEC -- N

Page 8 - 320 _+20 I 295 _+20

TB1I_FLEL_D_ _ _ o_lHCl_BISCONNECT__P_OW_E_R _ _]| _ - I__?_UP_PL_y_ _HCI_ c 4 HTR1EQUIP GND I I Ir3-PhONLY __-rr'_ j i i CIRCUlTBREAKER](5 HPAND

Page 9 - 1/2 1/2 I 5/8

TB1_-I l--aDISCONNECT P_OW_ERp_pL_y_IIL21_ I HCI_ HTR1S-PhONLY 1---,CIRCUIT BREAKERI I I 5HPANDLARGERI 11 _____ __IFC -"I.ORMOO28 ' _} - - P

Page 10

PRE-START-UPIMPORTANT: Before beginning Pre-Start-Up or Start-Up, review Start-Up Checklist at the back of this book.The checklist assures proper star

Page 11

8. Backseat (open) compressor vapor and discharge valves.Now close valves one turn to _dlowrefiigerant pressure toreach test gages.Preliminary ChargeT

Page 12

19 3/8FRONT4 PLACESB CONTROL BOXLine & Low_ Voltage Wiring35 / Entrances _2 / 1/2 1-;/2t2-1/8@ 9-3/4t1-I/8DBOTTOMf\5-3J2-1/2rTTTT_TTTT4-1/411/2REA

Page 13 - Table 7 -- Electrical Data

Compressor Lockout (CLO) Device-- Tile Com-pressor lockout (CLO) device prevents the compressor fiomstariing or running in a high pressure, loss-of-ch

Page 14

Never charge liquid into the low-pressure side of system.Do not ovemharge. During charging or removed of refriger-ant, be sum indoor-fan system is ope

Page 15

Defrostis achievedby reversalfiomheatingto coolingcycleanddeenergizationof outdoor-fanmotol.'s,allowinghotrefrigerantgastodefrostoutdoorcoil.Defr

Page 16 - HI(COOL)

5. Remove screws fiom compressor mounting plate.Excessive movement of copper lines at compressor maycause higher levels of vibration when unit is rest

Page 17 - S-PhONLY 1

COMPRESSOR _ REVERSING VALVE?M ULAT_'_O R _ VAPOR-_LINECK VALVE B1]CK VALVE ACK VALVE CfIIFILTERDRIERd&FIXED ORIFICEMETERING DEVICELIQUID LIN

Page 18 - WASHER_._.__Lf

COIL RETURNBEND ENDREVERSINGVALVEACCUMULATORCNGAS AND OIL _[J./HOT GAS jCK VALVE CFig. 22 --38AQS016 Cooling ModeCK VALVE B-- CK VALVE ACK VALVE CCOIL

Page 19 - 0 10 20 30 40 50 60 70 80 90

Coil Cleaning and Maintenance--This section dis-cusses the cleaning and the maintenance of standard coils andE-Coated coils. Routine cleaning of coil

Page 20 - ,oo lllllllH'lllll! 1

DO NOT USE water in excess of 130 F (54.4 C).Enzymes in coil cleaner will be destroyed and coil cleanerwill not be effective.4. Thoroughly apply Envir

Page 21

TROUBLESHOOTING CHART-- HEATING CYCLEDoICONTACTOROPENCIRCUIT FBREAKEROPEN1POWER CIRCUITDEFECTIVE LOW-VOLTAGETRANSFORMERtCOMPRESSOR 1WILLNOTRUNI1CONTRO

Page 22 - Duplex Units

TROUBLESHOOTING CHART -- COOLING CYCLEII COMERESSORWILL NOT RUNII It +N+_c_o__t°NTA++o_IOPEN CLOSEDt OPENING IN 1POWER CIRCUITt DEFECTIVELOW-VOLTAGETR

Page 23

CORNER _ COIL IlXllCOMPRESSOR OUTDOORCOILACCESSPANELREARVIEW11627[4578]COILACCESSCORNER "ZELECTRICALLOCATIONCONTROLACCESSPANELi _ OUTLETLOCATIONO

Page 24 - (See Fig. 22)

Copyright 2004 Carrier CorporationManufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and

Page 25

I. PRELIMINARY INFORMATIONOUTDOOR UNIT: MODEL NO.INDOOR UNIT: MODEL NO.ADDITIONAL ACCESSORIESII. PRE-START-UPOUTDOOR UNITIS THERE ANY SHIPPING DAMAGE&

Page 26 - Clean coils as follows:

III. START-UPCHECK INDOOR FAN SPEED AND RECORD.CHECK OUTDOOR FAN SPEED AND RECORD.AFTER AT LEAST 10 MINUTES RUNNING TIME, RECORD THE FOLLOWING MEASURE

Page 27

LJLREHOVASLE 1 5/8"ODM VAPORt/2 ° DIA. (4) MTG. HOLES{13 meO38 1/4"--(972 mm)--_224338AQS0161158(72}158(72)26 11116"(678 mm)_1_3244(111

Page 28 - N.C. -- Normally Closed

1 2 3 4 5 6 7 8 9 10 11 121415281626© ©25 24 23 22 21 201 -- Defrost Board/Time Guard II Control2- Fuse3 -- Fan No. 14 -- Compressor Lockout Device (C

Page 29 - I°+L+,_I_t +o_

Table 1A- Physical Data- 38AQ007, 38ARQ008,012, 38AQS016 Units- 60 Hz EnglishUNIT 38AQ007 38ARQ008 I 38AR0012 I 38AOS016NOMINAL CAPACITY (tons) 6 7.5

Page 30

Table 1B -- Physical Data -- 38AQ007, 38ARQ008,012, 38AQS016 Units -- 60 Hz SlUNIT 38AQ007 38ARQ008 I 38ARQ012 I 38AOS016NOMINAL CAPACITY (kW) 21.1 26

Page 31

Table lC -- Physical Data -- 38ARQ008,012 and 38AQS016 Units -- 50 Hz EnglishUNIT 38ARQ008 38ARQ012 I 38AQS016NOMINAL CAPACITY (tons) 6.3 8.3 I 12.5OP

Page 32 - III. START-UP

Table 1D -- Physical Data -- 38ARQ008,012 and 38AQS016 Units -- 50 Hz SlUNIT 38ARQ008 38ARQ012 38AOS016NOMINAL CAPACITY (kW) 22.1 29.2 43.9OPERATING W

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