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 TM 55-1925-273-10-1
0082 00
b.
CLOSE the following valves:
(1) Compressor suction valve (figure 19, item 7)
(2) Dehydrator bypass valve (figure 19, item 8)
(3) Purge valve (figure 19, item 9)
(4) Charge and drain valve (figure 19, item 10)
3.
Align the air conditioning refrigerant piping by completing the following:
! CAUTION
To prevent oil return problems and damage to the condenser, do not operate both condensing
units at the same time with RFAC-39, LIQUID LINE CRVR CO. and RFAC-41, SUCT LINE
CRSVR COV. valves open.
a.
In AMS 2, verify that the following valves are CLOSED:
(1)
RFAC-39. LIQUID LINE CRVR CO. air conditioning liquid line crossover cut out, located in the overhead
(2)
RFAC-41. SUCT LINE CRSVR COV. air conditioning suction line crossover cut out, located in the overhead
b.
Run the fan coil units to place a heat load on the system by completing the following actions:
(1)
In the main deck fan room, OPEN the following valves:
(a) RFAC-29, EQL LINE (figure 20, item 1), air conditioning 2 equalizing line
(b) RFAC-30, EQL LINE (figure 20, item 2), air conditioning 1 equalizing line
(c) RFAC-33, TXV/STNR/LLSV COV, R1-25-2, 4 COIL (figure 20, item 3), TXV strainer and low level
cut out from air conditioning 2
(d) RFAC-34, TXV COV, R01-32-2 (figure 20, item 4), TXV strainer and low level cut out from air condi-
tioning 2
(e) RFAC-36, TXV/STNR/LLSV COV, R1-25-2, 8 COIL (figure 20, item 5), strainer and low level cut out
from air conditioning 1
(f)
RFAC-37, TXV/STNR/LLSV COV, R1-25-2, 8 COIL (figure 20, item 6), strainer and low level cut out
from air conditioning 1
(g) RFAC-38, 4 COIL SUCT, COV, R1-25-2 (figure 20, item 7), coil suction
(h) RFAC-42, 8 COIL SUCT COV, R1-25-2 (figure 20, item 8), coil suction
(2)
In the 01 level fan room OPEN the following valves:
(a) RFAC-31, 8 EQL LINE (figure 21, item 1), equalizing line
(b) RFAC-34, TXV COV, R01-32-2 (figure 21, item 2), TXV outlet
(c) RFAC-40, COIL SUCT COV, R01-32-2 (figure 21, item 3), coil suction
(d) RFAC-35, TXV COV, R01-32-2 (figure 21, item 4), TXV inlet
0082 00-13
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