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b. Installation. Install high and low pressure
cutout switches as follows:
(1) Insert capillary tube ends through par-
tition and install grommet (fig. 5-7). Connect
capillary tube nuts to fittings.
(2) Install switches (fig. 4-21) and secure each
with two screws and lock washers.
(3) Make electrical connections to switches.
(4) Refer to paragraph 4-54 and install
junction box. Refer to paragraph 4-21 and install
housing top cover.
(5) Refer to paragraph 6-3 and charge the
refrigerant system.
5-22. Charging Valves
a.
Removal.
Refer
to
paragraph
6-3
and
discharge the refrigerant system. Remove housing
rear top covers (para 4-21). Remove cap and nut
from each charging valve (fig. 5-7). Unsolder
charging valves from line.
b. Installation. Install charging valves on line
and solder. Place valves in slot in support bracket
and secure each with nut. Install caps. Refer to
paragraph 4-21 and install housing rear top cover.
Refer to paragraph 6-3 and charge the refrigerant
system.
5-23. Pressure Relief Valve
a. Removal. Refer to paragraph 6-3 and
discharge the refrigerant system. Refer to
paragraph 4-21 and remove housing top covers.
Remove screw, lock washer, and loop clamp (fig. 5-
7). Remove pressure relief valve from adapter.
b. Installation. Install pressure relief valve (fig.
5-7) in adapter. Install loop clamp on valve and
secure clamp with screw and lock washer. Install
housing top cover (para 4-21). Refer to paragraph
6-3 and charge the refrigerant system.
5-24. Dehydrator
a. General. The dehydrator is to be replaced
whenever the refrigeration system is opened for
maintenance.
b. Removal. R e f e r t o p a r a g r a p h 6 - 3 a nd
discharge
the refrigerant
system.
Refer to
paragraph 4-21 and remove housing rear top cover.
Refer to figure 5-8 and remove four screws and two
straps. Disconnect and remove dehydrator.
c. Installation. Connect dehydrator to tubing.
Install two strap and four screws. Use sealing
compound on screw threads. Install rear top cover
(para 4-21). Refer to paragraph 6-3 and charge the
refrigerant system.
5-13
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