Maintenance
AVOID INJURY. Coolant fluid is a 30% ethylene glycol/water mixture.
TOXIC: Do not ingest. Contact local environmental authorities for proper
disposal of ethylene glycol mixtures.
Tools required: Open end wrenches 1”, 7/8”, 13/16”
If leaks occur at compression fitting joints with nylon plastic tubing, re-tighten compression nut
until firmly seated. Do not drain fluid. Do not over-tighten.
Leaks occurring at pipe thread, o-ring, or gasket joints require system disassembly to repair.
Consult an SCAI Service Center.
If loss of coolant results in compressor shutdown from over-heating, factory service is required.
Consult an SCAI Service Center.
Replace the Compressor Shell High Temperature Switch
Tool required: #2 Phillips screwdriver
The temperature switch fits into a depression on top of the compressor capsule under the
terminal box cover.
1. Stop the compressor. Disconnect the power to the compressor.
2. Remove the compressor’s top cover panel.
3. Lift off the cover of the terminal box on top of the compressor capsule. See Figure 6.
4. Disconnect wires 30 and 31 from the temperature switch terminals. Remove the retainer
containing the temperature switch. Discard the switch. Keep the retainer for reuse.
5. Put a new temperature switch into the retainer. Put the assembly onto the compressor
capsule and engage the retainer clips.
6. Connect wires 30 and 31 to the switch terminals.
7. Replace the terminal box cover.
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