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Therm-Coil
Electric Water Heater Thermostats
Therm-coil Domestic Thermostat
Domestic 110-160
Model Nunmber Description
WH-9 Adjustable, SPST Lower Thermostat with cover *replaces WH-7
WH9-WL6 Adjustable, SPST Lower Thermostat with Hi-Limit & cover *replaces WH7-WL4
WH10-WL6 Adjustable, SPDT Top Thermostat with Hi-Limit & cover *replaces WH8-WL4
Electrical Ratings
30 AMP Non-Inductive 250V AC
22 AMP Non-Inductive 277V AC
12.5 AMP Non-Inductive 480 V AC
125 VA Pilot Duty 120-480 V AC
WH-9
WH-9-C
WH-9-WL6
WH-9-WL6-C
Thermco-Commercial Thermostat
Commercial 100° -180°
Model Number Description
WH-9-C Adjustable, SPST Lower Thermostat with cover *Replaces WH-7-C
WH9-WL6-C Adjustable, Lower Thermostat with HI-Limit Limit for 19KW or more * Replaces WH7-WL4-C
WH10-WL6-C Adjustable SPDT Top Thermostat with Hi-Limit & Cover *Replaces WH8-WL4-C
WH-10-WL6
WH-10-WL6-C

The WH10-WL6 thermostat is onlyused as the upper thermostat on double element water heaters. The purpose for an upper thermostat and heating elementis for the quick recovery of the upper 25% of the tank. After the 25% of the water is heated to approximately 120F the WH10-WL6 device them switches power to the bottom WH-9 thermostat and heating element. The entire water heater with then recover to the set point of the WH-9. Minimum manual reset temperature is 40 below cutout temperate.

Packaging = Display Pack only


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