SBD TANK TYPE HEATERS
SERVICE HANDBOOK
STEP 7
THERMOSTAT TEST
STEP 7. THERMOSTAT TEST. Set the thermostat to call for heat. Using your multimeter, test for 24 VAC between right terminal and ground.
IF | THEN | |
The meter does not read 24 VAC and the jumper wire | • | Replace the thermostat |
between the high limit and the thermostat is in place: |
|
|
The meter reads 24 VAC: | • | Go to step 8. |
Note: If the high limit to thermostat jumper wire was disconnected earlier to simulate a satisfied thermostat, reconnect the jumper to the terminals.
Note: A yellow wire from this thermostat terminal connects to the damper PC board.
Technical Training Department | 24 |
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