freightliner PE116DC, Maintenance Manual

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83–03 Battery-Powered HVAC
System (BPHS)
Inspection
Fuel-Operated Heater Check
1. Start the BPHS and set the control knob to maxi-
mum heat. Run the heater for 15 minutes to
achieve operating temperature, and clear old fuel
from the lines.
2. Verify that the unit completes the start-up cycle,
and continues to produce warm exhaust.
Drain Tube Inspection
NOTICE
The BPHS drain tube(s) must be kept clear of de-
bris. Failure to do so will cause excessive water
build-up in the base of the unit and may cause
damage to the internal components.
1. Remove the battery cover/step or forward side
fairing, as needed, to improve access to the un-
derside of the BPHS unit.
2. Remove the drain tube(s) from the bottom of the
unit. See
Fig. 10 .
3. Check the drain tube(s) for debris, and clean as
needed.
4. Install the drain tube(s).
5. Install any components that were removed for
access.
External A/C Condenser
Inspection and Cleaning
The BPHS A/C condenser is located on the backwall
of the sleeper. Inspect the condenser as follows.
1. Check for debris in the condenser housing.
2. If needed, remove the condenser cover fasten-
ers, then remove the cover. See
Fig. 11 or
Fig. 12 .
NOTE: If the condenser core has a build-up of
fine debris, an A/C core cleaner, approved for
copper and aluminum cores, and a low pressure
stream of water can be used to clean it.
3. Clean out any debris in the module.
4. Install the cover.
06/10/2011 f831880
Remove and clean the drain tubes.
Fig. 10, Drain Tube Inspection
f090527 04/20/2016
Remove the condenser cover.
Fig. 11, Condenser Cover Fasteners (wide style
condenser)
Heater and Air Conditioner
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