Operation - Airxcel 45400 Series Installation, Operation And Maintenance Manual

A. Set the thermostat to the "LOW COOL" or
"HIGH COOL" position.
B. Adjust the thermostat (temperature control)
to the position that is the most comfortable to
you. The thermostat will turn the compressor
on when the temperature of the air entering
the Air Conditioner rises a few degrees
above the setting you have selected. When
the temperature of the air entering the Air
Conditioner drops below the selected setting,
the thermostat will turn the compressor off.
The Air Conditioner, while in the cooling
mode, will continue to cycle the compressor
on and off in the above-mentioned fashion
until the selector switch is turned to another
mode of operation.
C. Position the louvers to the desired direction
the discharge air is to flow.
i. Operation During Cooler Nights
(Cooling Operation)
It is important when the outdoor temperature drops
in the evening or during the night to below 75°F, that
the thermostat (temperature control) be set at a
midpoint between "Warmer" and "Cooler". If the
setting is at "Cooler", the evaporator coil may
become iced-up and stop cooling. During the day
when the temperatures have risen above 75°F, reset
the thermostat switch to the desired setting.
NOTE: Should icing-up occur, it is necessary to let
the cooling (evaporator) coil defrost before normal
cooling operation is resumed. During this time,
operate the unit in the "HIGH FAN" position with the
system at maximum air flow. When increased or full
air flow is observed, the cooling coil should be clear
of ice.
ii. Short Cycling
When an Air Conditioner is in operation, its
compressor circulates
pressure. Once off, it will take two to three minutes
for this high pressure to equalize. The Air
Conditioner compressor is unable to start against
high pressure. Therefore, once the Air Conditioner is
turned off, it is important to leave it off for two to three
minutes before restarting.
Short cycling the compressor (or starting it before
pressures have equalized), will in some instances,
kick the circuit breaker or overload.
iii. For Air Circulation Only
A. Set the thermostat to "LOW FAN" or, for
maximum air flow, to "HIGH FAN".
B. Position the louvers to the desired direction
the discharge air is to flow.
NOTE: When the thermostat is in the "LOW FAN" or
"HIGH FAN" position, the blower motor will operate
continuously.
iv. Routine Maintenance
I. Owner – One of the biggest advantages to your
new Coleman®-Mach® Air Conditioner is that
the needed maintenance needed to keep the
unit in good working order is minimal. In fact,
about the only thing you, the owner, must take
care of is the cleaning and replacement of the
filters.
X. OPERATION
refrigerant under high
Filters are made from long life non-allergenic
natural fibers which can be cleaned and reused,
and which completely filter the circulated air when
the Air Conditioner is in operation. If the filters are
not cleaned at regular intervals, they may become
partially clogged with lint, dirt, grease, etc. A
clogged filter will produce a loss of air volume and
may eventually cause an icing-up of the cooling
(evaporator) coil.
The ceiling assembly and the outside shroud can
be cleaned with a damp cloth. When required, a
mild detergent can be used.
IMPORTANT
Do not operate your Air Conditioner for
extended periods of time without the filter
installed.
An even more serious condition occurs when
the Air Conditioner is operated without a filter.
When this happens, the lint, grease, etc. that
are normally stopped by the filter are now
accumulating in the cooling coil. This not only
leads to a loss of air volume and a possible
icing-up of the cooling coil but could also result
in serious damage to the operating
components of the Air Conditioner. We
recommend that the filters be cleaned and
changed at least every two weeks when the Air
Conditioner is in operation.
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: If replacement filters are necessary, the filters
can be purchased from most Airxcel, Inc. Authorized
Service Centers. It is recommended that spare filters
be carried with the RV at all times to replace worn, torn
or deteriorated filters.
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 Air Conditioner
units. This Coleman
is designed to operate on 36-57V DC electrical
power. If the compressor on the Air Conditioner
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 #10 AWG for lengths up to 25 feet
(larger wire size for greater distances). Each Air
Conditioner unit must be protected with a time
delay fuse (U.L. Listed) or equivalent.
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® ®
-Mach RV Air Conditioner