Troubleshooting
Table 16 Unit Troubleshooting
Objectionable noise
levels
X X
Air noise
Poor ductwork/grill
design
Ensure the ductwork and grills are properly sized
for the unit air flow.
Fan speed setting
too high
Consult blower performance table and reduce fan
speed if possible.
Structure- bourne
noise
Unit not mounted
on full vibration pad
Mount unit on vibration pad.
Unit not connected
with flexible
conduit, water
lines, and/or
ductwork
Install unit in accordance with the installation
instructions staring on
page #12.
Unit cabinet
touching wall or
other building
components
Adjust unit location to avoid unit touching
structure.
Compressor noise
High water
temperature or low
water flow rate
elevating head
pressure
Increase water flow rate and/or reduce water
temperature if possible.
Scaled or fouled
water coil elevating
heat pressure
Clean/descale water coil.
Low air flow
elevating head
pressure
Check filter.
Increase fan speed.
Water hammer
Fast-closing valves
installed
Change valves to slow-close type.
Unit Troubleshooting
Problem
Mode
Check Possible Cause Action
Cooling Heating
60 |
CL Series Heat Pumps — 8733838716 (2024/05)
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