TM 9-4110-258-13
Figure 4-4. Refrigeration Valve Setting for Normal Operation
c. Remove two caps (3) and fully open two isolation valves (4). Install two caps.
NOTE
The compressor shut off valves can be adjusted to three positions, fully closed to block the
refrigerant tubes and isolate the compressor and service ports. Fully open to allow flow from
piping to compressor but not the service port or cracked (one turn closed from fully open) to allow
flow from piping to compressor and service port on valve
d. Remove two caps (5) and fully open two shut off valves (6). Install two caps.
e. Loosen four compressor mount locknuts (1, fig. 4-5) until proper operating space 1.5 in. (3.81 cm) is reached.
4-5
