Carrier 38BYB, 38YCB(P) instruction manual Safety Considerations, Installation, Tiedown Knockout

38YCB(P), 38AYB, 38BYB Split-System Heat Pump

Model Specific Instructions

NOTE: Read the entire instruction manual before starting the installation. Refer to Split-System Heat Pump Common Installa- tion and Start-Up Practices (included in this packet).

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause death, personal injury, or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or agency must use factory-authorized kits or accessories when modifying this product. Refer to the individual instructions packaged with the kits or accessories when installing.

Follow all safety codes. Wear safety glasses, protective clothing, and work gloves. Use quenching cloth for brazing operations. Have fire extinguisher available. Read these instructions thor- oughly and follow all warnings or cautions included in literature and attached to the unit. Consult local building codes and National Electrical Code (NEC) for special requirements.

Recognize safety information. This is the safety-alert symbol . When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury.

Understand the signal word DANGER, WARNING, or CAU- TION. These words are used with the safety-alert symbol. DAN- GER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal injury or death. CAUTION is used to identify unsafe practices which would result in minor personal injury or product and property damage.

Before installing, modifying, or servicing system, main elec- trical disconnect switch must be in the OFF position. There may be more than 1 disconnect switch. Lock out and tag switch with a suitable warning label. Electrical shock can cause personal injury or death.

INSTALLATION

Step 1ÐMount Unit to Pad

Refer to Fig. 1 for pad dimensions and dimensions needed to mount unit to pad.

Step 2ÐRefrigerant Tubing

Refer to Fig. 2 for refrigerant tube dimensions and connections.

Step 3ÐMechanical Connection (38YCP Model)

1.Remove plastic retainer holding outdoor piston and piston retainer in the liquid service valve. Connect and tighten the liquid service valve adapter to the valve body prior to assembling ferrule/lock nut. (See Fig. 3.)

2.Cut tubing to the correct length, deburr and size as necessary, making sure tube ends are square. If a large burr is evident, the ID and OD must be deburred to allow the tube to bottom in valve.

C

				3⁄8″D. (9.53) TIEDOWN
	A			KNOCKOUTS (2) PLACES￿
				￿
			B						A94199
					TIEDOWN KNOCKOUT
UNIT SIZE		MIN. PAD				LOCATIONS
		DIM. (IN.)			A		B		C
					(In.)		(In.)		(In.)
38YCB(P)018-030
38AYB018		22-1/2 X 22-1/2			3-11/16		18-1/8	14-3/8
38BYB018
38YCB(P)036-060
38AYB024-060		30 X 30			6-1/2		23-1/2	20
38BYB024-060

Fig. 1ÐMount Unit to Pad

3.Remove lock nut and ferrule from plastic bag taped to service panel. (See Fig. 4.) Remove the lock nut and ferrule from liquid service valve adapter. (See Fig. 3.)

If undersized, damaged, or elliptically shaped tubing is used when making connection, leaks could result.

4.Slide the lock nut and ferrule onto each tube. (See Fig. 5.)

5.Apply a few drops of refrigerant oil to the ferrule and valve threads and adapter threads to reduce assembly torque and assist sealing.

6.Insert tube end into the service valve or adapter until it bottoms.

7.Push the ferrule into place and hand tighten the nut until an increase in torque is felt.

8.Mark the nut and tube and tighten 1-1/2 turns from the mark. (See Fig. 6.) Keep the tube bottomed in the valve and adapter while tightening nut.

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book	1	4	PC 101	Catalog No. 563-809	Printed in U.S.A.	Form 38YCB-2SI	Pg 1	6-96	Replaces: 38YCB-1SI
Tab	5a	5a