Product data

38 HDC, 38 HDL, 38 QR MAINTENANCE
WARNING
Before performing recommended maintenance,
be sure unit main power switch is turned off.
Failure to do so may result in electric shock or
injury from rotating fan blade.
I. LUBRICATION
A. Fan-Motor Bearings
Oiling hole are provided at each end of outdoor-fan
motor. Remove fan motor and lubricate motor with 32
drops (16 drops per hole) of SAE-10 (Society of
Automotive Engineers) non-detergent oil at intervals
described below:
• Annually, when environment is very dirty, ambient
temperature is higher than 105°F, and average unit
operating time exceeds 15 hours a day, or
• Every 3 years when environment is reasonably
clean, ambient temperature is less than 105°F, and
unit operating time averages 8 to 15 hours a day, or
• Every 5 years when environment is clean, ambient
temperature is less than 105° F, and unit operating
time averages less than 8 hours a day.
B. Compressor
Compressor contains factory oil charge; replace oil
when lost. See Table 7 for recommended compressor
oils.
II. CLEANING COILS
Coil should be washed out with water or blown out
with compressed air. Note that the blow-thru design
causes dirt and debris to build up inside of the coils.
Clean coil annually or as required by location and
outdoor air conditions. Inspect coil monthly and clean
as required. Fins are not continuous through coil
sections. Dirt and debris may pass through first
section, become trapped between the row of fins, and
restrict outdoor unit airflow. Use a flashlight to
determine if dirt or debris has collected between coil
sections. Clean coil as follows:
1. Turn off unit power.
2. Using a garden hose or other suitable
equipment, flush coil from the outside to
remove dirt. Be sure to flush all dirt and
debris from drain holes in base of unit. Fan
motors are waterproof.
Table 7 – Recommended Compressor Oils
UNIT 38HDC/HDL/QR
RECOMMENDED
OIL
018 (All) 024 (All) 030 (All)
036
(Single
Phase)
036 (3 Phase)
048
(All)
060 (all)
3GS ● ● ● ● ●
Calumet RO-15 ● ● ●
Cryol 150A ● ●
Sontex 200LT ● ●
Zerol 150TD ●
Zerol 300 ●