Installation, Start-Up and Service
Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS
. . . . . . . . . . . . . . . . . . 1
INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Step 1 — Complete Pre-Installation Checks
. .. 1-4
• UNPACK UNIT
• INSPECT SHIPMENT
• CONSIDER SYSTEM REQUIREMENTS
• CHECK ACCURATER® METERING DEVICE
Step 2 — Rig and Mount Unit
. . . . . . . . . . . . . . . . 4
• MOUNTING ON GROUND
• MOUNTING ON ROOF
• RIGGING
Step 3 — Complete Refrigerant
Piping Connections
. . . . . . . . . . . . . . . . . . . . . . . . 4,5
• INSTALL FILTER DRIER AND MOISTURE
INDICATOR
• MAKE PIPING SWEAT CONNECTIONS
• PROVIDE SAFETY RELIEF
Step 4 — Make Electrical Connections
. . . . . . 6
• POWER WIRING
• CONTROL CIRCUIT WIRING
START-UP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,7
Preliminary Checks
. . . . . . . . . . . . . . . . . . . . . . . . 6
Leak Test
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Evacuate and Dehydrate
. . . . . . . . . . . . . . . . . . . . 6
Charge System
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
To Start Unit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SERVICE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11
MAINTENANCE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
TROUBLESHOOTING
. . . . . . . . . . . . . . . . . . . . 12,13
SAFETY CONSIDERATIONS
Installing and servicing air conditioning equipment can
be hazardous due to system pressure and electrical compo-
nents. Only trained and qualified service personnel should
install or service air conditioning equipment.
Untrained personnel can perform basic maintenance, such
as cleaning and replacing filters. All other operations should
be performed by trained service personnel. When working
on air conditioning equipment, observe safety precautions in
literature, tags, and labels attached to unit.
Follow all safety codes. Wear safety glasses and work gloves.
Use quenching cloth for brazing operations. Have fire ex-
tinguisher available. Read these instructions thoroughly. Con-
sult local building codes and National Electrical Code (NEC)
for special installation requirements.
Before installing or servicing system, always turn off
main power to system. There may be more than one dis-
connect switch. Turn off accessory heater power if ap-
plicable. Electrical shock can cause personal injury.
INSTALLATION
Step 1 — Complete Pre-Installation Checks
UNPACK UNIT (see Fig. 1.) — Move unit to final location.
Remove carton from unit, being careful not to damage serv-
ice valves and grilles.
INSPECT SHIPMENT — File claim with shipping com-
pany if shipment is damaged or incomplete.
CONSIDER SYSTEM REQUIREMENTS — Consult
local building codes and NEC for special installation
requirements.
Allow sufficient space for airflow clearance, wiring, re-
frigerant piping, and servicing unit. See Fig. 2 and 3.
Locate unit so that airflow is unrestricted on both sides.
Refer to Fig. 2 and 3.
Unit may be mounted on a level pad directly on base legs
or mounted on raised pads at support points. See Fig. 2 and
3 for center of gravity.
HEAT PUMP
Fig. 1 — Model 38QR018C-060C
38QR018C-060C
Commercial Heat Pumps
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1
4
Tab
5a 5a
PC 111
Catalog No. 563-882
Printed in U.S.A.
Form 38QRC-1SI
Pg 1
3-92
Replaces: New
