Chromalox Circulating Water Temperature Control System CMX-250-18C-480

Disconnect all power to the system

Bleed pressure and drain all water from the system

Remove pump motor wiring cover panel (2 screws)

Note location of pump motor wires and remove

Disconnect all power before servicing or performing maintenance

Ensure the system is not operating or hot before servicing

Set the temperature controller setpoint to 90°F or lower. Allow to cool.

Turn off power to the unit. The controller will turn off.

Turn off the water supply to the unit.

Disconnect electrical supply to the unit.

Carefully bleed pressure from the system by loosening a pipe fitting.

Warning: HAZARD OF ELECTRIC SHOCK. Disconnect all power and piping to system.

Disconnect all power to the system.

Bleed pressure and drain all water from the system.

Remove red top cover on the heater (see Figure 6.2, Heater/Chamber Photo).

Note location of wires on the heater, then remove wires (L1, L2, L3).

Loosen compression fitting on the heater power supply cable.

!Warning: HAZARD OF ELECTRIC SHOCK. Disconnect all power and piping to system.

Disconnect all power to the system.

Bleed pressure and drain all water from the system.

Remove cover on the cooling solenoid.

Unbolt the heat exchanger and remove (4 bolts).