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 TM 55-1925-273-10-1
0082 00
AIR CONDITIONING CONDENSER UNIT OPERATION
! CAUTION
Align the condenser cooling water piping system before starting the refrigeration plant or the
plant can be damaged.
1.
Verify that the general service system is pressurized and available for use, and align the cooling system by positioning
valves as follows:
! CAUTION
The condenser water cooling system must be purged of all air. Air in the cooling system will
reduce heat exchange efficiency and can result in damage to the condenser.
a.
For air conditioning condenser 1:
(1)
OPEN GS-33, A/C COND No. 1 SPLY (figure 18, item 1), air conditioning condenser 1 supply.
(2)
OPEN GS-36, WTR RGLTR COV (figure 18, item 2), water regulator inlet.
(3)
Verify that GS-65 (figure 18, item 3), water regulator, is OPEN.
(4)
Verify that GS-83, BYP WTR RGLTR (figure 18, item 4), water regulator bypass, is CLOSED.
b.
For air conditioning condenser 2:
(1)
OPEN GS- 34, A/C COND No. 2 SPLY (figure 18, item 5), air conditioning condenser 2 supply.
(2)
OPEN GS-37, WTR RGLTR COV(figure 18, item 6), water regulator inlet.
(3)
Verify that GS-66 (figure 18, item 7), water regulator, is OPEN.
(4)
Verify that GS-72, BYP WTR RGLTR (figure 18, item 8), water regulator bypass, is CLOSED.
c.
Verify that GS-32, GS OVBD DISCH (figure 18, item 9), general service overboard discharge, is OPEN.
! CAUTION
When starting the condenser, avoid rapid pump-down to ensure oil is not carried off with refrig-
erant. If oil is pulled from sump, ensure that oil pressure is a minimum of 16 PSI (1.10 bar)
above suction pressure. If the pressure difference becomes greater than 16 PSI (1.10 bar), stop
the condenser and add oil temporarily. Added oil must be later removed when the sight glass oil
level becomes too high.
NOTE
gizing the heater for this period of time ensures that the refrigerant is driven from the oil.
2.
Align the air conditioning condenser piping system by completing the following:
0082 00-10
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