Follett FZR5-PL Series Installation, Operation And Service Manual - Page 11
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Controller replacement
1.
Disconnect power to unit.
a. Push front panel rocker switch to OFF position.
b. Disconnect power cord.
2. Remove 6 screws from front panel and slide panel forward to access back of controller.
3. Disconnect front panel and wiring harness from freezer at the 3, 4, and 5 pin connectors and door heater
connector to simplify replacement.
4. Push in on center of side brackets (on controller) to release and slide brackets back and off controller.
5. Push controller and wires out through front of front panel.
6. Using wiring schematic (attached to front panel and below) as a guide, remove wires one at a time from back of
existing controller and connect to corresponding terminals on replacement controller.
7.
Insert replacement controller back through front of panel.
8. Slide brackets onto sides of controller and push against back of front panel.
9. Reconnect 3, 4, and 5 pin connectors of wiring harness to freezer.
10. Keeping wiring clear of condenser, replace front panel.
11. Restore power and test operation. Reprogram replacement controller if necessary.
Wiring diagram
COMP
10
11
BLK
12
13
R
S
14
WHT
CONDENSING UNIT
L1
120 VAC
1 PHASE
L2
15 AMPS
GND
GROUND SCREWS
EVAPORATOR
THERMISTOR
FZR PL Series 00939132R00
DOOR
HEATER
WHT
WHT
WHT
BLU
BLK
CHAMBER
THERMISTOR
DRAIN PAN
C30°F
HEATER
O80°F
EVAPORATOR
C30°F
HEATER
O80°F
FAN
EVAPORATOR UNIT
1
1
2
2
3
3
1
1
2
2
3
3
4
4
1
1
2
2
3
3
4
4
5
5
BLK
RED
BLK
BLK
BLU
YEL
WHT
WHT
VIO
Service
11