Chromalox PK477 installation instructions Installation, Wiring, Limited Warranty

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INSTALLATION

1.Cut lead wires protruding from outlet box approximately 4” from wall surface and strip end insulation 1/2”.

2.Always test the heater circuit for electrical shorts before con- necting the thermostat.

3.Remove thermostat knob and front cover.

4.Using wire-nuts or other local code approved devices, connect load and line wires to appropriate color coded thermostat wires. (See wiring diagrams below.)

5.Mount the thermostat to the outlet box using the screws pro- vided. Take care not to push or damage the bimetal sensing ele- ment during installation.

6.Replace the thermostat front cover and knob.

WARNING: Any knob temperature setting below 50°F may result in freezing.

WIRING

WARNING: Hazard of Electric Shock. Disconnect all power before wiring or servicing this control.

Electric wiring to heater must be installed in accordance with National Electrical Code and with local codes.

WARNING: Use copper conductors only.

Connect wires according to wiring diagrams (Figures 1 and 2). Note: Electrical connections should be made with generous loops of wire — approximately 6” per lead.

Note: If load amperage or voltage rating exceeds switch rating, a contactor must be used.

Figure 1:

 

 

 

 

Figure 2:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note:

1.Connect anticipator lead (white) in parallel with heater.

2.Thermostat performance will be degraded if anticipator connection is omitted.

Note:

1.Suitable for control of one heating load only.

2.No separate connection required for heat anticipation.

3.Temperature control switch is located on right hand side when thermostat is viewed from the rear.

Limited Warranty:

Please refer to the Chromalox limited warranty applicable to this product at http://www.chromalox.com/customer-service/policies/termsofsale.aspx.

1347 HEIL QUAKER BLVD., LAVERGNE, TN 37086

Phone: (615) 793-3900

www.chromalox.com

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Contents General Installation InstructionsType WT Room Thermostat 161-506096-001 JuneLimited Warranty InstallationWiring