Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111
Catalog No. 533-80001
Printed in U.S.A.
Form 38AQS-9SI
Pg 1
1-01
Replaces: 38AQS-8SI
Book 1
4
Tab
5a 5a
Installation, Start-Up and
Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS
. . . . . . . . . . . . . . . . . . . . . . 1
INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Step 1 — Complete Pre-Installation
Checks
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Step 2 — Rig and Mount Unit
. . . . . . . . . . . . . . . . . . . . . 5
Step 3 — Complete Refrigerant Piping
Connections
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Step 4 — Complete Electrical
Connections
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
PRE-START-UP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
START-UP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-18
SERVICE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18,19
TROUBLESHOOTING
. . . . . . . . . . . . . . . . . . . . . . . . . 20-23
START-UP CHECKLIST
. . . . . . . . . . . . . . . . . . CL-1, CL-2
SAFETY CONSIDERATIONS
Installing, starting up, and servicing this equipment can be
hazardous due to system pressures, electrical components and
location of equipment (roofs, elevated structures, etc.).
Only trained, qualified installers and service mechanics
should install, start up, and service this equipment.
Untrained personnel can perform basic maintenance func-
tions, such as cleaning coils and filters and replacing filters.
All other operations should be performed by trained service
personnel.
When working on the equipment, observe precautions in
the literature and on tags, stickers, and labels attached to the
equipment.
•
Follow all safety codes.
•
Wear safety glasses and work gloves.
•
Keep a quenching cloth and fire extinguisher handy.
•
Use care in handling, rigging, and setting bulky
equipment.
INSTALLATION
Step 1 — Complete Pre-Installation Checks
UNCRATE UNIT — Remove unit packaging except for the
top skid assembly, which should be left in place until after the
unit is rigged into position.
INSPECT SHIPMENT — File claim with shipping company
if shipment is damaged or incomplete.
CONSIDER SYSTEM REQUIREMENTS
•
Consult local building and electrical codes for special
installation requirements.
•
Allow sufficient space for airflow clearance, wiring,
refrigerant piping, and servicing unit. See Fig. 1 and 2.
•
Ensure unit weight will be properly supported. See
Tables 1A and 1B.
•
Unit may be mounted on a level pad directly on the base
channels or mounted on raised pads at support points.
See Fig. 3 and Table 2 for weight distribution based on
recommended support points.
NOTE: If vibration isolators are required for a particular
installation, use data in Table 2 to make proper selection.
•
Accessory mounting legs (Carrier Part No.
38AQ900081) are recommended for elevation of unit for
improved air circulation and better condensate drainage.
Legs also minimize interference from ice build-up,
snow, leaves, and debris. See Fig. 1.
To prevent electric shock, be sure power to equip-
ment is shut off before performing maintenance or
service.
IMPORTANT: Follow unit location, height proximity,
and piping requirements in this booklet carefully to
enhance system efficiency and to avoid system failure.
Read entire booklet before starting installation.
38AQS012-016
Split System Heat Pumps
50/60 Hz
