Thermostat Diagnosis
Thermostat Diagnosis |
Thermostat Test Procedure Using Glycol |
Inspect the operation of the thermostat by hanging the thermostat on a hook in a 33 percent glycol solution.
In order to inspect if the thermostat valve is opening properly, perform the following test:
1. |
Completely submerge the thermostat in a glycol solution. The solution should be 11°C (22°F) above the temperature indicated on the thermostat valve.
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2. |
Thoroughly agitate the solution. Under these conditions, the thermostat valve should open.
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In order to inspect if the thermostat valve is closing properly, perform the following test:
1. |
Completely submerge the thermostat in a glycol solution. The solution should be 6°C (10°F) below the temperature indicated on the thermostat valve.
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2. |
Thoroughly agitate the solution. Under these conditions, the thermostat valve should close completely.
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