Total valve replacement.

TM5-4110-234-14

TO 40R7-5-7-1

(4) Use the continuity test or multimeter to check for continuity between each lead and the coil casing. If

continuity is found between either lead and the case, the coil is grounded and should be replaced.

(5) Using an external power source connect power (12 volt dc for the F10000RG-2 or 115 volt ac for the

F10000R-6) to the leads. When power is applied listen for a sharp click when the valve changes position. If a click is not

heard, internal valve problems are indicated and the entire valve should be replaced.

b. Coil Replacement. The coil can be replaced without opening the refrigeration pressure system. Refer to

figure 5-7 and replace the coil as follows:

Do not attempt any disassembly of the solenoid valve other than coil removal with a refrigerant charge in

the system. Refrigerant will be sprayed out dangerously if the enclosing tube lock nut that attaches the

enclosing tube and plunger assembly to the valve body is loosened.

(1)

Remove the nut that attaches the coil to the valve body, and remove the coil.

(2)

If the leads have not already been disconnected, tag and disconnect them.

(3)

Remove the connector for reuse unless it is damaged.

(4)

Position the replacement coil on the enclosing tube and install the top lock nut.

(5)

Reuse the old box connector or install a new one.

(6)

See tags and wiring diagram figure 4-5 or 4-6 and connect wires.

Total valve replacement.

NOTE

It is not necessary to debraze valve body from copper tubing unless valve body is damaged.

(1)

Pump the system down in accordance with paragraph 5-6.

(2) Connect a dry nitrogen source to the compressor discharge service tee and loosen the flare nut to the

receiver outlet valve. Purge this section of tubing in accordance with paragraph 5-9.

(3)

Remove the lock nut that attaches the coil to the body assembly and remove the coil.

(4)

Remove the enclosing tube lock nut and all other removable internal components from the valve body.

(5)

Note the direction of flow arrow on the valve body. Debraze the joints of the refrigerant tubing from the

valve body, and remove the valve body.

Install.

(1)

New valves shipped from the factory are assembled hand tight to ease disassembly.

(2)

Remove all components from the new valve body.

(3)

Be careful that the flow arrow on the valve body is pointing in the proper flow direction. See refrigeration

5-18