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Thermal Comfort 3000 Three-Phase Contactor Replacement, Voltage Selection PC Board Replacement

Models: 3000

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7.Locate and remove the four bolts and lock nuts securing the Fan Assembly to the Rear Panel As- sembly.

8.Carefully pull the Fan Assembly from the Rear Panel Assembly feeding the wiring through the hole.

9.Install the replacement Fan Assembly by reversing the above procedure.

B.Three-Phase Contactor Replacement

1.Remove the Right Side Panel per Section 5.04-B.

2.Note the orientation of all the wires and then dis- connect the input and output wiring from the Three-Phase Contactor Assembly.

3.Remove the two locking nuts securing the Three- Phase Contactor to the Rear Panel of the unit.

4.Install the replacement Three-Phase Contactor As- sembly by reversing the above procedure.

C.Voltage Selection PC Board Replacement

1.Remove the Right Side Panel per Section 5.04-B.

2.Disconnect all the wiring connections to the Volt- age Selection PC Board Assembly.

3.Remove the Voltage Selection PC Board from the four PC Board Standoffs.

4.Install the replacement Voltage Selection PC Board Assembly by reversing the above procedure.

D.Gas Solenoid Assembly Replacement

NOTE

The Plasma and Secondary Gas Solenoid Valve Assemblies are replaced in the same manner.

1.Remove the Top Panel per Section 5.04-B.

2.Disconnect the Gas Supply at the Rear Panel con- nection

3.Disconnect the internal Gas Hose Assembly con- nected to the elbow fitting on the Gas Solenoid Valve Assembly.

4.Disconnect the two wires connected to the Sole- noid Valve Assembly.

5.Remove the Panel Nut securing the assembly to the Rear Panel Assembly.

6.Pull the old Gas Solenoid Valve Assembly from the Rear Panel Assembly.

7.Install the replacement Solenoid Valve Assembly by reversing the above procedure and noting the following:

•Remove the fittings from the old assembly and install on the replacement assembly.

E.Secondary Water Solenoid Valve Assembly Replacement

1.Remove the water supply from the Secondary Water connection at the Rear Panel Assembly.

2.Remove the Top Panel per Section 5.04-B.

3.Disconnect the internal Hose Assembly connected to the elbow fitting on the Secondary Water Soleniod Valve Assembly inside the unit.

4.Carefully disconnect the two wire connector to the Secondary Water Solenoid Valve Assembly.

5.Remove the Panel Nut securing the assembly to the Rear Panel Assembly.

6.Pull the old Secondary Water Solenoid Valve As- sembly from the Rear Panel Assembly.

7.Install the replacement Secondary Water Solenoid Assembly by reversing the above procedure and noting the following:

•Remove the fittings and Check Valve from the old assembly and install on the replacement as- sembly.

F.Rear Panel Coolant Filter Assembly Replacement

The Coolant Filter Assembly is located on a bracket on the Rear Panel Assembly of the unit.

1.Remove the two Coolant Hose connections to the Coolant Filter Assembly.

2.Remove the two elbow fitting on each side of the Coolant Filter Assembly and remove the damaged assembly from the bracket.

3.Clean the old thread sealer from the threads of the elbow fittings.

4.Apply a thin coating of liquid teflon thread sealer to the threads of the elbow fittings.

5.Place the replacement Coolant Filter Assembly in the bracket with the arrow pointing to the left and reinstall the two elbow fittings.

6.Reconnect the two Coolant Hoses to the Coolant Filter Assembly making sure that the hose to the Pump Assembly is on the output of the Coolant Filter Assembly (left side as viewed from the back).

Manual 0-2533

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REPLACEMENT PROCEDURES

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Thermal Comfort 3000 manual Three-Phase Contactor Replacement, Voltage Selection PC Board Replacement
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3000 specifications

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