Service Manual for Proofer Oven with Touch Screen Controls (TSC)
12
WARNING
IF ALUMINUM AC SUPPLY WIRE IS
PRESENT, THE UNIT IS NOT PROPERLY
WIRED AND MUST BE TAKEN OUT OF
SERVICE UNTIL IT IS PROPERLY REWIRED
USING COPPER WIRE.
Figure 9: Possible Wiring Block Configurations
Note: Also refer to the TSC OVEN LINE SUPPLY
WIRING diagrams at the back of this manual.
1. Place the unit’s Power ON/OFF Switch in its OFF
position, and follow the proper Lockout/Tagout
procedures.
2. Remove the AC Connect Block Cover Plate.
3. Use a Voltmeter to check for the presence of voltage.
4. With AC power removed and proper Lockout and
Tagout procedures applied, ensure that the contacts
on the connect block are properly tightened.
Electrical Compartment Components
A
C
B
Figure 10: Cooling Fan, Power On/Off
Switch and Hi Limit Thermostat
A: Cooling Fan
B: Power ON/OFF Switch
C: Hi Limit Thermostat
Electrical Compartment Cooling Fan
WARNING
BEFORE PERFORMING ANY SERVICE THAT
INVOLVES ELECTRICAL CONNECTION
OR DISCONNECTION AND/OR EXPOSURE
TO ELECTRICAL COMPONENTS, ALWAYS
FOLLOW THE ELECTRICAL LOCKOUT/
TAGOUT PROCEDURE. DISCONNECT ALL
CIRCUITS. FAILURE TO COMPLY CAN
CAUSE PROPERTY DAMAGE, INJURY OR
DEATH.
This fan is mounted on the electrical compartment on
the right side of the unit.
1. Place the unit’s Power ON/OFF Switch in its OFF
position, and follow the proper Lockout/Tagout
procedures.
2. Remove the two screws securing the Cooling Fan
panel to the electrical compartment.
3. Tag and disconnect the cooling fan wires.
4. Remove the four nuts securing the fan to the panel.
Retain the nuts for reuse.
5. Remove the fan.
6. Reverse this procedure to install the replacement
fan.
