Carrier 38QN User Manual
Installation and start-up instructions, Book| 1 i 4, A warning
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HEATING & COOLING
38QN
Heat Pumps—Outdoor Section
Installation and Start-Up Instructions
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 precautions in litera
ture and on tags emd labels attached to unit.
Follow all safety codes. Wear safety glasses and work
gloves. Use quenching cloth for brazing operations. Have
fire extinguisher available. Read these instructions thor
oughly. Consult local building codes and National Electrical
Code (NEC) for special installation requirements.
A WARNING
Before installing or servicing unit, always turn off main
power to system. There may be more than one discon
nect switch. Turn off accessory heater power if applica
ble. Electrical shock can cause personal injury.
INSTALLATION
Step 1—Check Equipment and Jobsite—
Install on a sohd,
level mounting pad. It is recommended that unit be
attached to pad using tiedown bolts. Fasten unit to pad
using holes provided in unit mounting feet. See Fig. 1.
AIRFLOW
A86167
A87150
Dimensions (ft-in.)
r-6" AIRFLOW AND
SERVICE CLEARANCE
AROUND UNIT — 12"
ON VALVE SIDE
Model 38QN
015-030
036-048
060
Diameters
1-9’2
2-5\
3-3
Squares (minimum)
1-11
2-6
3-4
Tiedown Bolt
Locations C
0-6=4
0-9’'2
1-T=16
D
1-4
1-10^2
2-7
E
0-9V
1-1
1-5^8
Fig. 1—Dimensions, Connections and Mounting Pad (Refer to Tabie 1)
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obiigations.
Book| 1 I 4
PC 101 Cataiog No. 533-820
Printed in U.S.A.
Form 38QN-10Si
10-87 Pg 1
Repiaces: 38QN-9Si
Tab l5al5a