Carrier 38TRA instruction manual ÐMake Piping Connections, Installation Recommendations, A92471

AIR DISCHARGE AIR IN

AIR IN

C

L

3/8" DIA TIEDOWN KNOCKOUTS

(2) PLACES IN BASEPAN

NOTES:

1.ALLOW 30″ CLEARANCE TO SERVICE END OF UNIT, 48″ ABOVE UNIT, 6″ ON ONE SIDE, 12″

ON REMAINING SIDE, AND 24″ BETWEEN UNITS FOR PROPER AIRFLOW.

D	2.	MINIMUM OUTDOOR OPERATING AMBIENT IN COOLING MODE IS
		55° F (UNLESS LOW AMBIENT CONTROL IS USED) MAX 125° F.
	5.	SERIES DESIGNATION IS THE 13TH POSITION OF THE UNIT
	E	MODEL NUMBER.
	6.	CENTER OF GRAVITY

C

SERIAL
PROD
MODEL
PISTON	ID	OD
FACTORY CHARGED R-22

AIR DISCHARGE	AIR IN
VAPOR LINE CONN
	A	FIELD POWER SUPPLY CONN
		7/8″ DIA HOLE WITH
AIR DISCHARGE		1 1/8″ DIA KNOCKOUT
		AND
		1 3/8″ DIA KNOCKOUT
		FIELD CONTROL
		SUPPLY CONN
		7/8″ DIA HOLE
		3/8″ DIA LIQUID
		LINE CONN

UNIT RATING

PLATE

B

ACCESS

PANEL

		LBS		Kg
POWER SUPPLY				VOLTS
		PH		HZ
	PERMISSIBLE VOLTAGE AT UNIT
		MAX		MIN
	SUITABLE FOR OUTDOOR USE
		COMPRESSOR
VOLTS AC
PH
HZ
RLA
LRA
		FAN MOTOR
VOLTS AC
PH
HZ
FLA
	DESIGN/TEST PRESSURE GAGE
HI	PSI		kPa
LO	PSI		kPa
MINIMUM CIRCUIT AMPS
MAX OVERCURRENT PROTECTIVE DEVICE
	TYPE		USA	CANADA
MAX FUSE
MAX HACR CKT-BKR				N/A
MAX CKT-BKR			N/A
	®
		®

CARRIER CORP INDIANAPOLIS IN

313948-401 REV A 46206

A92471

	UNIT	A	B	C	D	E
	SIZE	In.	In.	In.	In.	In.
	018	27-1/2	22-1/2	8-3/16	2-13/16	6-15/16
	024-048	34-15/16	30	8-3/16	4	9-3/4
060	(301 Series)	45	38-5/8	8-9/16	5-15/16	11-13/16
060	(311 Series)	34-15/16	30	8-3/16	4	9-3/4

Fig. 2ÐUnit Reference Drawing

DO NOT BURY MORE THAN 36 IN. OF REFRIGERANT TUBING IN GROUND. If any section of tubing is buried, there must be a 6-in. vertical rise to the valve connections on the outdoor unit. If more than the recommended length is buried, refrigerant may migrate to cooler buried section during extended periods of unit shutdown, causing refrigerant slugging and possible compressor damage at start-up.

Step 4ÐMake Piping Connections

Outdoor units may be connected to indoor sections using accessory tubing package or field−supplied refrigerant grade tubing of correct size and condition. For tubing requirements beyond 50 ft, consult Long-Line Application Guideline which is available at your local distributor.

In some cases noise in the living area has been traced to gas pulsations from improper installation of equipment.

INSTALLATION RECOMMENDATIONS

1.Locate the unit away from windows.

2.Ensure that vapor and liquid line diameters are appropriate to the capacity of the unit. (See Table 1.)

3.Run refrigerant tubes as directly as possible by avoiding unnecessary turns and bends.

4.Leave some slack between the structure and the unit to absorb vibration.

5.When passing refrigerant tubes through the wall, seal the opening with RTV or other pliable silicon-based caulk. (See Fig. 3.)

6.Avoid direct lineset contact with water pipes, ductwork, floor joists, wall studs, floors, and walls.

7.Do not suspend refrigerant tubing from joists and studs with a rigid wire or strap which comes in direct contact with the tubing. (See Fig. 3.)

8.Ensure that tubing insulation is pliable and completely sur- rounds the vapor line.

9.When necessary, use hangar straps which are 1 in. wide and conform to the shape of the tubing insulation. (See Fig. 3.)

10.Isolate the hangar straps from the insulation by using metal sleeves bent to conform to the shape of the insulation.

If refrigerant tubes or indoor coil is exposed to atmospheric conditions for longer than 5 minutes, it must be evacuated to 500 microns to eliminate contamination and moisture in the system.

OUTDOOR UNITS CONNECTED TO FACTORY-APPROVED INDOOR UNITS Ð Outdoor unit contains correct system refrig- erant charge for operation with indoor unit of the same size when

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