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TM 5-4120-287-15
Section IV. OPERATION OF EQUIPMENT
2-9. General
a. Instructions in this section are published for information and guidance of personnel responsible for operation of
the air conditioner.
b. The operator must know how to perform every operation of which the air conditioner is capable. This section gives
instructions on starting and stopping the air conditioner, in setting the air conditioner mode of operation.
2-10. Starting
a. Preparation for Starting.
(1)
Perform necessary daily preventive maintenance services(para 3-6).
(2)
Check air conditioning requirements to determine necessary mode of operation.
b. Starting. When starting the air conditioner perform the following:
(1)
Set the air conditioning switch and master circuit breaker switch to their OFF position(fig. 2-2 and 2-3).
(2)
Turn the fresh air control knob 9fig. 1-3) to the OPEN or CLOSE position, depending on shelter air
conditioning requirements as determined in step a(2) of this paragraph.
(3)
Set the air conditioner switch to either the HEAT, VENT, or COOL mode of operation position s
determined in step a (2) of this paragraph.
4)
Open condenser air discharge door when air conditioning switch is set for COOL mode of operation.
(5)
Place the master circuit breaker in the ON (up) position (fig. 2-3).
(6)
Set the temperature control variable resistor as necessary to achieve the desired shelter air temperature
range.
NOTE
The temperature control variable resistor setting has no effect when the air conditioning switch is set in the
VENT position.
2-11.
Stopping
a.
Stopping procedure. When stopping the airconditioner perform the following steps:
(1)
Set the air conditioning switch to the OFF position.
(2)
Set the master circuit breaker switch to the OFF (down) position.
b.
Perform the necessary daily preventive maintenance services 9para 3-6).
2-12. Operating under Unusual Conditions
a. When starting the air conditioner under unusual conditions perform the following steps:
(1)
Perform necessary daily preventive maintenance services(para3-6).
(2)
Check air conditioning requirements to determine necessary ode of operation.
(3)
Set the air conditioning switch to the OFF position.
(4)
Turn the fresh air control knob (fig. 1-3) to the OPEN or CLOSE position, depending on air conditioning
requirements determined in step (2) above.
(5)
Make sure the condenser air outlet door (fig.1-5) is open.
(6)
connect the remote control wiring harness plug (P102) to the remote control receptacle (J102) located on
the electrical tray front panel.
(7)
Connect the main power cable to the input power plug P101 in accordance with paragraph 2-4a(6).
Connect plug P101 to power input receptacle j101.
(8)
set the air conditioner switch and temperature control switch in accordance with paragraph 2-10 b (3) and
(6).
(9)
Place the master circuit breaker in the ON(up) position (fig.2-3) to start air conditioner.
b.
When stopping the air conditioner perform the following:
(1)
Set the air conditioning switch in the OFF position.
(2)
Place the master circuit breaker in the OFF(down) position.
(3)
Perform the necessary daily preventive maintenance services (para 3-6).
2-8
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