Airxcel 48000 Series User Manual download pdf (Page 4)

III. Short Cycling

When an air conditioner is in operation, its compressor

circulates refrigerant under high pressure. Once off, it will

take two to three minutes for this high pressure to equalize.

The air conditioning 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.

IV. For Heating (“Elect-A-Heat” Ceiling Assembly

Model Only) Refer to Figure 1, page 3).

The optional Elect-A-Heat heating assembly is intended to

take the chill out of the indoor air when the air is a few

degrees too cool for comfort. The heating assembly is an

effective “chill chaser”. It is not a substitute for a furnace.

Do not expect the heating coil on your heater to glow.

Because the fan draws in cold air and forces it over the coil,

the coil will not turn red. A hint of red may occur where the

moving air does not directly touch the coil.

A. Turn the selector switch to the “LOW HEAT”

position. At “LOW HEAT”, the fan operates on

low speed with heat output at maximum.

B. Rotate the thermostat (temperature control) switch

to the position that is the most comfortable to you.

The thermostat will turn the heater on when the

temperature of the air entering the air conditioning

unit drops below this setting a few degrees and

automatically turns off when the temperature of the

air entering the air conditioner rises a few degrees

above this setting. The heater will continue to cycle

on and off in this 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.

Discharge air temperature can be controlled to some

extent by opening or closing the louvers.

When the louvers are closed, the warmest localized

discharge air is achieved. Fully opened louvers will

throw the warm discharge air to the back and front of

the vehicle for more efficient circulation and faster

warm-up. Although the air temperature is lower with

the louvers fully opened, the heating capacity is still

the same.

V. For Air Circulation Only (Refer to Figure 1,

page 3).

A. Turn the selector switch 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 selector switch is in the “LOW FAN” or “HIGH

FAN” position, the blower motor will operate continuously.

IV. MAINTENANCE

I. Owner

One of the biggest advantages to your new Coleman-Mach air

conditioner is that the maintenance needed to keep the unit in

good care is minimal. In fact about the only thing you, the

owner, must take care of is the cleaning and replacement of

the filters.

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.

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.

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Airxcel 48000 Series User Manual Page 4

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