![](/images/new-backgrounds/1022908/229081x1.webp)
38YRA Heat PumpÐOutdoor Section
Installation and
NOTE: Read the entire instruction manual before starting the installation.
This symbol → indicates a change since last issue.
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause 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 and work gloves. Use quenching cloth for brazing operations. Have fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions attached to the unit. Consult local building codes and the National Electrical Code (NEC) for special instal- lation requirements.
Recognize safety information. This is the . When you see this symbol on the unit or in instructions and 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 or servicing system, always turn off main power to system. There may be more than 1 disconnect switch. Turn off accessory heater power if applicable. Elec- trical shock can cause personal injury or death.
INSTALLATION
Step 1ÐCheck Equipment and Jobsite
UNPACK UNIT Ð Move to final location. Remove carton taking care not to damage unit.
INSPECT EQUIPMENT Ð File claim with shipping company, prior to installation, if shipment is damaged or incomplete. Locate unit rating plate on unit corner panel. (See Fig. 2.) It contains information needed to properly install unit. Check rating plate to be sure unit matches job specifications.
Step 2ÐInstall on a Solid, Level Mounting Pad
If conditions or local codes require the unit be attached to pad,
When installing, allow sufficient space for airflow clearance, wiring, refrigerant piping, and service. Allow
A92446
Fig. 1ÐModel 38YRA
clearance on 1 side of unit and 12 in. on all remaining sides must be maintained. Maintain a distance of 24 in. between units. Position so snow, ice, and water from roof or eaves cannot fall directly on unit.
On rooftop applications, locate unit at least 6 in. above roof surface. Place unit above a
Arrange supporting members to adequately support unit and minimize transmission of vibration to building. Consult local codes governing rooftop applications.
Step 3ÐElevate Unit
For proper drainage the heat pump must be raised off the mounting surface. Fig. 4 shows unit with accessory support feet installed. Use accessory heat pump snow rack in areas where prolonged subfreezing temperatures or heavy snow occur. Refer to separate Installation Instructions packaged with the accessories.
For proper unit operation and reliability, this unit must be installed with the
Step 4ÐRemove Indoor AccuRater® Piston and Install
TXV
After removing existing AccuRater from indoor coil, install
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 |
|
|
|
|
|
|
|