Figure 5-8. Liquid line solenoid valve and liquid line bypass solenoid valve, removal and installation.

Figure 5-8. Liquid line solenoid valve and liquid line bypass solenoid valve,

removal and installation.

(2)

Replace the dehydrator (para 5-18).

(3) Replace the dehydrator (para 5-18).

(4) Evacuate and recharge the refrigerant

(3)

Replace the front access panel (para

system (para 6-1).

3-15).

(4)

Evacuate and recharge the refrigerant

system

(para 6-1).

5-17. Liquid line Solenoid Valves

5-18. Dehydrator

a. On-Equipment Testing. Start the unit, if the

solenoid valve fails to click, upon start of opera-

a. General. The dehydrator prevents the accu-

tion, stop the unit and check the valve coil and

mulation of moisture and contaminants within

connections in the same manner as used for the

the refrigerant system. The dehydrator must be

hot gas bypass valve (para 5-16).

replaced each time the refrigerant system is ex-

b. Removal and Disassembly.

posed to the atmosphere during the replacement

(1) Discharge the refrigerant system (para

of a system component.

6-1).

b. Removal.

(2) Remove the front access panel (para

(1) Remove the front access panel.

3-15).

(2) Discharge the refrigerant system (para

(3) Refer to figure 5-8 and remove the liq-

6-1).

uid line solenoid valves.

(3) Refer to figure 5-10 and remove the de-

(4) Refer to figure 5-9 and disassemble the

hydrator.

liquid line solenoid valves. Do not apply heat to

c. Installation.

assembled valve.

(1) Install the dehydrator and access panel

(5) Disconnect tubing from body.

by reversing the order of removal.

c. Reassembly.

(2) Evacuate and recharge the refrigerant

(1) Solder tubing to body.

system (para 6-1).

(2) Reassemble liquid line solenoid valves

5-19. Pressure Relief Valve

by reversing the order of disassembly.

a. General. The pressure relief valve, located

d. Installation.

immediately beneath the dehydrator, prevents ex-

(1) Install the liquid line solenoid valves by

cessive pressure in the refrigerant system.

reversing the order of removal.

5-11