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ARMY TM 9-4210-381-14
NAVY EE-000-CA-MMA-010/7053-AC
AIR FORCE TO 35E9-136-31
8.
If suction line pressure of 55 to 58 psig (3.9 to 4.1 kg/cm2) is not present, adjust valve.
9.
Turn the adjusting stem (3) one turn to change suction by 4 psig (.28 kg/cm2). Turn the stem clockwise to
increase suction pressure or counterclockwise to decrease suction pressure.
10.
If valve can not be adjusted to maintain 55 to 58 psig (3.9 to 4.1 kg/cm2) suction pressure, replace valve and
repeat steps 1 thru 4.
WARNING
Disconnect input power to the air conditioner before performing any internal maintenance. Voltage
used can KILL. Shutting the unit off at the control panel does not disconnect unit power.
11.
Disconnect air conditioner input power at source.
12.
After proper setting is obtained:
a.
Turn unit OFF.
b.
Remove service manifold from low service valve.
c.
Install service valve protective cap (2) and (4).
d.
Remove wires installed to TB-2 in step 4.
e.
Close left electric plate (para 4-30).
f.
Close manual valve (para 5-39).
REMOVAL
1.
Pump down refrigerant system (para 5-21).
WARNING
Disconnect input power to the air conditioner before performing any internal maintenance. Voltages used
can KILL. Shutting the unit off at the control panel does not disconnect unit power.
2.
Disconnect air conditioner input power at source.
3.
Loosen flare nut (10) and let gas escape.
4.
Disconnect flare nut (10).
NOTE
• If hot gas bypass valve body is to be replaced, disassemble before debrazing.
• If hot gas bypass valve body is not damaged and will not be removed, proceed to the disassembly
procedure.
5.
If valve body (12) is to be removed, debraze tubing at joints (15) (para 5-14).
5-81
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