38YCB(P), 38AYB, 38BYB Split-System Heat Pump
Model Specific Instructions
NOTE: Read the entire instruction manual before starting the installation. Refer to
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
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 
. 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
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
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| 3⁄8″D. (9.53) TIEDOWN |
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| KNOCKOUTS (2) PLACES | |||||
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| A94199 |
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| TIEDOWN KNOCKOUT | ||||
UNIT SIZE | MIN. PAD |
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DIM. (IN.) | A | B |
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| (In.) | (In.) |
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38AYB018 | ||||||||||||||
38BYB018 |
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30 X 30 | 20 | |||||||||||||
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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
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. | Printed in U.S.A. | Form | Pg 1 | Replaces: | |
Tab | 5a | 5a |
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