Installation, Operation and Maintenance Manual
9. Disconnect the refrigerant lines by heating the joint areas slowly and uniformly until braze material softens
and the tube can be pulled out of fittings. Use a damp cloth covering the solenoid valve as a precaution will
prevent overheating the valve body
10. Deburr and clean connection lines as needed.
11. Remove actuator and to be reinstalled after brazing in valve body to line connections.
12. Use a damp cloth covering the solenoid valve body as a precaution will prevent overheating the valve.
NOTICE. The area should be vented thoroughly to prevent formation of
dangerous fumes which could result from the refrigerant in the presence of an
open flame.
Replace the Liquid Line Solenoid Valve:
1. Place the replacement solenoid valve in the line, in the proper direction of flow and braze the replacement
solenoid valve in the line connections. Must be in the same location and configuration as the original
solenoid valve.
2. Braze with Sil-Fos or equivalent silver copper phosphorus composition brazing material. No soldering
allowed.
3. The tip of the torch should be large enough to avoid prolonged heating of the connection during the brazing
operation. Overheating can also be minimized by directing the flame away from the valve body.
4. When valve body has cooled to room ambient temperature then reinstall valve actuator.
5. Rewire the solenoid valve back to original condition.
6. Evacuate and charge the system with the specified quantity of refrigerant
7. Adjust refrigerant level as needed.
8. Check compressor suction and discharge pressure.
9. Check sub cooling and super heat values.
10. Test solenoid valve operation with controller.
Electrical Component Maintenance/Replacement
WARNING Risk of electric shock can cause injury or death. Disconnect local and
remote electrical power before working within unit.
Customer must provide earth ground to unit, per NEC, CEC and local codes, as
applicable. Before proceeding with installation, read all instructions, verify that
all the parts are included and check the nameplate to be sure the voltage
matches available utility power.
WARNING Arc flash and electric shock hazard. Risk of electrical shock could
result in injury or death. Disconnect all remote electrical power supplies prior
to working on or within the unit. Wear appropriate personal protective
equipment per NFPA 70E before working within unit. Use voltmeter to make
sure power is turned off before making any electrical connections. Failure to
comply can cause injury or death.
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