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Panel Assembly Service
30 310554V
Swirl Control Board Removal
Remove the relay board as follows:
1. Shut off system power at the main circuit breaker.
2. At the control assembly, move the MAIN power
switch to the OFF position.
3. Unlock and open the hinged cover of the control
assembly.
4. Unplug the connectors from the swirl control board.
5. Pry the plastic cups off the board with a screwdriver
to release the board from the din rail.
Swirl Control Board
Replacement
Replace the relay board as follows:
1. Snap the swirl control board onto the din rail.
2. Plug the connectors into the swirl control board.
Refer to F
IG. 17 for lead wire identification.
3. Close and lock the hinged cover on the control
assembly.
4. Apply system power at the main circuit breaker.
5. Move the MAIN power switch to the ON position,
applying power to the control assembly.
6. Verify that the relay board operates correctly.
7. Return the control assembly to normal operating
condition.
ELECTROCUTION HAZARD
Installing and servicing this equipment requires access
to parts which could cause an electric shock or other
serious injury. Have only qualified electricians access
the control assembly.