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TM9-4120-423-14&P
9
Slip the coil assembly and data plate on to the body tube and plunger assembly.
10
Using wrench, secure the coil with a nut.
11
Connect leads to disconnect splices.
TEST AND INSPECTION
WARNING
Disconnect input power from the air conditioner before performing maintenance on any
part of the electrical system. The voltages used can be lethal. Shutting the unit off at the
control module does not disconnect power to the various components of the air
conditioner.
NOTE
The following basic instructions apply to both the equalizing solenoid L1 and the liquid
line solenoid L2.
1
Disconnect the solenoid valve leads at the quick disconnect terminals.
2
Use multimeter set on the lowest ohms scale to check for resistance between leads. If resistance
is not between 40 and 70 ohms, the coil is bad and must be replaced.
3
Use 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.
4
If resistance checks are satisfactory, apply 24 volts dc from an external power supply across the
leads and 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.
INSTALLATION
1
Disassemble all removable components from the new valve.
NOTE
Step (2) applies only to the L1 solenoid valve.
2
Install the flush bushings in the valve body.
3
Position the valve body in the unit. See arrow on valve body for proper installation.
4
Purge system with nitrogen and braze joints. See WP0071 and WP0072.
0093 00-4

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