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Carrier 38AH044-084 Ð Dimensions Ð Units 38AH044,054,064, Chart 1, Field Power Supply Connections

Models: 38AH044-084

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Chart 1, Field Power Supply Connections

		DUAL CKT				SINGLE CKT

SUCTION	21¤8		Dia [54 mm]		25¤8		Dia [67 mm]
CONNECTION(S)
LIQUID		7¤8	Dia [22 mm]		11¤8		Dia [29 mm]
CONNECTION(S)
SUCTION C	2	-11¤16		[627mm]	1	-105¤16[567mm]
LIQUID D	1	-101¤16		[561mm]	1	-105¤16[567mm]
SUCTION (Ckt A)	1	-713¤16[503mm]			2	-5¤8	[626mm]
SUCTION (Ckt B)	2	-5¤8		[626mm]			Ð
LIQUID (Ckt A)	2	-53¤4		[756mm]	2	-105¤8[879mm]
LIQUID (Ckt B)	2	-105¤8		[879mm]			Ð

Chart 1, Field Power Supply Connections

	UNIT	VOLTAGE	Hz	DIAMETER Ð in. [mm]		QTY
	044	230	50	35¤8 [92]		1
	044, 054	208/230	60	35¤8 [92]		1
		346, 380/415	50	21¤2	[63]	1

	044, 054, 064	460,575,380	60	21¤2	[63]	1
	064	208/230	60	21¤2	[63]	2
		346, 380/415	50	35¤8	[92]	1

LEGEND

CÐ Copper Fin Coils MTG Ð Mounting

SAE Ð Society of Automotive Engineers

NOTES:

1. The approximate operating weight of the unit is:

38AH-044---	3259 lb [1478 kg]
38AH-044--C	3547 lb [1609 kg]
38AH-054---	3309 lb [1501 kg]
38AH-054--C	3597 lb [1632 kg]
38AH-064---	3565 lb [1617 kg]
38AH-064--C	3998 lb [1813 kg]

2.Unit must have clearances for air¯ow as follows: Top Ð Do not restrict in any way.

Ends Ð 5 ft [1524 mm] Sides Ð 6 ft [1829 mm]

3.Mounting holes may be used to mount unit to concrete pad. They are not recommended for mounting unit to spring isolators. If spring isolators are used, a perimeter support channel between the unit and the isolators is recommended.

4.One 35¤8 (92 mm) diameter hole is recommended for single-entry power on size 064 (208/230-v) units.

5.See Table 1 for rigging center of gravity (Dimensions X,Y). See Table 2A and 2B for A-D corner weights.

6.Circled numerals in Top View refer to condenser fans by position.

Fig. 1 Ð Dimensions Ð Units 38AH044,054,064

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Carrier 38AH044-084 specifications Ð Dimensions Ð Units 38AH044,054,064, Chart 1, Field Power Supply Connections

Contents

CONTENTS SAFETY CONSIDERATIONSINSTALLATION Step 5 Ð Install AccessoriesTable 1 Ð Rigging Center of Gravity Ð in. mm Table 2A Ð Operational Corner Weights with Table 2B Ð Operational Corner Weights withStep 2 Ð Check Compressor Mounting Refrigerant Charge Approximate Ð LbFig. 1 Ð Dimensions Ð Units 38AH044,054,064 Chart 1, Field Power Supply ConnectionsFig. 2 Ð Dimensions Ð Units 38AH074,084 Chart 1, Field Power Supply ConnectionsFig. 3 Ð Dimensions Ð Unit 38AH094 UNITVOLTAGE DIAMETER Ð in. mmFig. 4 Ð Dimensions Ð Unit 38AH104 UNITVOLTAGE DIAMETER Ð in. mmFig. 5 Ð Dimensions Ð Unit 38AH124 UNITVOLTAGE DIAMETERFig. 6 Ð Dimensions Ð Unit 38AH134 UNITVOLTAGE DIAMETER Ð38AH 38AH and Sheet Metal Trim Kit and Sheet Metal Trim Unit 38AH134 ShownRIG HERE RIG HERE RIG HEREFig. 9B Ð Field-InstalledSuction Line Loop Fig. 9A Ð Typical Module with CoverPanels Removed Fig. 10 Ð Outer View, Compressor MountingStep 3 Ð Make Refrigerant Piping Connections Table 5 Ð Liquid LiftFig. 13 Ð Double Suction Riser Construction 38AH054-104 Dual-CircuitUnits Ð 60 Hz 38AH054-104 Dual-CircuitUnits Ð 50 Hz Modular Units Dual-CircuitÐ 60 Hz Optional Single-CircuitUnits and 38AH124,134Modular Units Dual-CircuitÐ 60 Hz Optional Single-CircuitUnits and 38AH124,134 Modular Units Dual Circuit Ð 50 HzModular Units Dual Circuit Ð 50 Hz and 38AH094-134Units Optional Single-CircuitUnitsLEGEND TXV Ð Thermostatic Expansion Valve TYP Ð Typical NOTE Lower split rst on, last offConnect Tubing from Evaporator to Unit Fig. 16 Ð Units 38AH124 and 134 with InstalledPiping Kit Kit Rails Fig. 19 Ð Fully Assembled Piping and Trim KitUnit 38AH134 Shown Cover Unit 38AH134 ShownStep 4 Ð Make Electrical Connections OPTIONAL SINGLE-CIRCUITUNIT UNIT UNIT Table 14 Ð Fan Motor Electrical Data Page Field-supplied 38AH LENGTH Ð FU Ð Fuse FU Ð Fuse Field-supplied NOTES Field-supplied NOTES Field-supplied NOTES PRE-START-UP Step 5 Ð Install AccessoriesSystem Check Preliminary Checks START-UPFig. 29 Ð 06E Compressors, Typical Adjust Refrigerant Charge If the initial check shows too much oil too high in the sight glass remove oil to proper level. See Preliminary Oil Charge for proper procedure for adding and removing oil Fig. 30 Ð Charging Chart Ð Unit 38AH044 50/60 Hz Ð Dual Circuit Fig. 32 Ð Charging Chart Ð Unit 38AH064 50/60 Hz Ð Dual Circuit Charging Chart Ð Unit 38AH044 Charging Chart Ð Unit 38AH054Fig. 35 Ð Fig. 36 ÐCharging Chart Ð Unit 38AH064 Charging Chart Ð Unit 38AH074Fig. 39 Ð Charging Chart Ð Unit 38AH084 Fig. 37 ÐFig. 40 Ð Charging Chart Ð Unit 38AH094 50/60 Hz Fig. 41 Ð Charging Chart Ð Unit 38AH104 50/60 HzFig. 42 Ð Charging Chart Ð Modules 124A, 124B Fig. 43 Ð Charging Chart Ð Module 134BSERVICE Refrigerant CircuitCompressor Motor Protection Table 17 Ð Fan Cycling Control Ð Psig kPagFig. 44 Ð Unloader Location and Settings Table 18 Ð Pressure Switch Settings Psig kPagCapacity Control Table 19A Ð One 2-StageThermostat Capacity Control for 38AH044-084 Dual-CircuitUnitsTable 20 Ð One 2-StageThermostat Capacity Control for 38AH094-134UnitsFig. 45 Ð Accumulator and Fusible Plug CONTROLFig. 46 Ð Pressure-ActuatedCapacity Control Valve Fig. 47 Ð Timer Cycle Fig. 49 Ð Condenser Fan Adjustment Fig. 48 Ð Unit Control BoxCompressor Replacement Ð Perform the following TROUBLESHOOTING TROUBLESHOOTING cont START-UPCHECKLIST A. Preliminary InformationB. Pre-Start-Up OUTDOOR UNITC. Start-Up