Finish Thompson BE-55C - Manual (Page 35)

34
BE-55C Heater Replacement/Tank Access: Units with serial number 04532I94 to current
WARNING: Electrical wiring, troubleshooting and repairs should be performed by a qualified
electrician.
 Drain residues and flush with clean water.
 Allow unit to cool before attempting repair or accessing tank interior.
 Disconnect electrical power to the unit before performing these procedures.
1. Remove three screws from the right side of the door located on the front of the unit and open the
door.
2. Remove the two nuts attached to the protective cover and remove the cover from the unit. The
protective cover is located on the lower front portion of the process tank.
3. Note wire numbers and locations on heater elements before removing any wires.
4. Remove wires from heater elements.
5. Note wire numbers and locations on two temperature switches before removing any wires.
6. Remove wires from temperature switches.
7. Remove ground wire.
8. Remove nuts and washers holding stainless steel heater retaining plate in-place.
9. Carefully slide heaters out of tubes.
10. Test each heater for continuity and resistance. Proper resistance is 29-30 ohms.
11. Remove any failed heaters by loosening the brass nut on the face of the heater retaining plate.
Install new heaters and reassemble in reverse order.
12. To access the process tank for cleaning purposes, remove the bolts from the flange/tube assembly.
Remove the flange/tube assembly by pulling it straight out.
13. After the tank has been cleaned, reassemble in reverse order. Do not over tighten flange/tube
assembly bolts.
14. Leave the protective cover off for one run to check for leaks around the gasket. Retighten bolts if
necessary and reinstall the protective cover.