11
Cleaning and/or changing the filters:
1. Remove the two grilles from the ceiling assembly by
pulling the tabs on the grilles.
2. Remove and clean or replace the two filters.
3. Re-install the filters and grilles in the ceiling
assembly as shown in Figure 2.
4. If the vehicle is equipped with a flush mount ceiling
assembly, remove the four return air grille screws.
Remove the filter from the grille and either clean or
exchange with new filters.
NOTE: Should replacement filters be needed, please
contact an Airxcel, Inc. Authorized Service Center
or Airxcel, Inc. direct for replacements. The filters
used in our products are factory recommended for
the best performance.
Our warranty will not support any filters such as
HEPA filters or any other material not
specifically recommended by Airxcel, Inc.
II. Service Person
A. Electrical – All electrical work and/or inspection
should be performed only by qualified service
personnel. Contact your nearest Airxcel, Inc.
Service Center if electrical problems should
arise.
B. Check Points – Failure to start or to cool the air
are sometimes problems with the air conditioning
units. The Coleman-Mach RV heat pump is
designed to operate on 115 volt electrical power.
If the compressor on the heat pump fails to start,
check with your Airxcel, Inc. Service Center to
determine that the proper wire size is connected
to the unit, the proper circuit breakers are
installed as protection devices on the electrical
circuit and the proper sized extension cord is
being used for the distance covered from the
utility outlet to the RV. The required minimum wire
size is #12 AWG for lengths up to 25 feet (larger
wire size for greater distances). Each heat pump
unit must be protected with a 20 amp time delay
fuse or circuit breaker.
If the heat pump continues to trip off the circuit
breakers, have an electrician check the starting
amperage and running amperage on the unit. If
the circuit breaker continues to trip off and the
electrical consumption is found to be normal, it
will require the replacement of the faulty circuit
breaker.
If all electrical power to the heat pump is normal
but neither the fan nor the compressor will
operate, the connector plug located behind the
ceiling assembly control box should be checked
to determine whether it is faulty.
On the heating-cooling heat pump models, if all
electrical power to the unit is normal and the fans
runs but you never get any heated air, then the
electrical plug to the heating unit should be
checked for a secure connection. If this does not
correct the malfunction, the heating thermostat or
limit switch may be faulty.
C. Mechanical Integrity – The heat pump should be
inspected periodically to be sure that the bolts
which secure the unit to the roof are tight and in
good shape. Also, an examination of the plastic
shroud covering the heat pump on the top of the
roof should be made periodically. Be sure the four
mounting screws and washers are snug and
holding the shroud to the heat pump. Also,
examine the shroud to be sure it is not developing
cracks or has suffered damage from impact.
v. WALL THERMOSTAT IDENTIFICATION AND
OPERATION
If your Coleman-Mach
roof top unit is controlled by a
wall thermostat, refer to the operation manual that was
included with the thermostat.
vi. WARRANTY SERVICE
Let’s face it. Sometimes even the best products may
need service. To obtain warranty service on your
Coleman-Mach Heat pump, please contact your
selling dealer, or you may access our web site on the
Internet at www.Airxcel.com for answers to the most
frequently asked questions and service center
locations.
Airxcel, Inc. support help may be accessed by e-mail
at RVPSupport@Airxcel.com. All written
correspondence should be directed to:
AIRXCEL, INC. - RV Products Division
P.O. Box 4020
Wichita, KS 67204
IMPORTANT
1. Carefully read the LIMITED 2 YEAR WARRANTY,
the OPTIONAL 3 (three) YEAR EXTENDED PARTS
WARRANTY, sample contract, terms, conditions,
exceptions and exclusions regarding your unit at
www.Airxcel.com.
2. An optional 3 (three) year extended parts only
contract is available at an additional cost of $89.95.
To obtain this optional 3 (three) year parts contract,
fill out the application located on the back of this
manual. Once completed, cut along the dotted lines
and mail the application and your check or money
order to the address above. Applications must be
made within ninety (90) days of the original
purchase.
3. Inquiries about your Coleman-Mach heat pump must
include the model and serial numbers and the date
of purchase. The model and serial numbers can be
found on the I.D. label located on the heat pump
basepan return air opening at the bottom of the roof
unit. This information may also be found on the heat
pump rating plate.
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