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 TM 55-1925-273-10-2
0129 00
4.
Start compressor:
a.
Set the power switch (figure 1, item 11) to ON.
! CAUTION
Open COMPRESSION SUCTION valve slowly to prevent rapid pumping down of suction pres-
sure side, which could cause oil foaming and result in pumping of oil from the compressor
b.
OPEN the COMPRESSOR SUCTION valve (figure 1, item 3) approximately one full turn.
c.
Immediately, slowly continue to open COMPRESSION SUCTION valve (figure 1, item 3) as suction pressure is
reduced.
RADIO ROM ROOFTOP AIR CONDITIONING UNIT EMERGENCY OPERATION
INITIAL STARTUP
1.
Set to ON the OUTDOOR CONDENSING UNIT FOR RADIO ROOM circuit breaker (figure 5, item 1) in the 220V
air conditioning distribution panel (figure 5, item 2).
2.
OPEN the cover (figure 6, item 1) on the radio room rooftop air conditioning fan unit (figure 6, item 2).
NOTE
Do not place the fan unit in the test position. The test position is only used after initial
installation.
3.
Set the TEST EMER. REMOTE switch (figure 6, item 3) on the fan unit (figure 6, item 2) to the EMER. position.
4.
CLOSE the cover (figure 6, item 1) on the radio room rooftop air conditioning fan unit (figure 6, item 2).
5.
The fan unit (figure 6, item 2) will only operate as indicated in table 1.
Table 1. Fan Unit Emergency Operating Characteristics
Operation Mode Preset Temperature
Fan Speed Timer
Flaps
COOL 77 F
AUTO CONTINUOUS
HORIZONTAL
6.
Operate the fan unit (figure 6, item 2) under usual conditions (WP 0082 00, volume 1) as soon as the unusual condition
has been corrected.
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