Service Manual

10
1. Startup/Cool Down
3. Cool Down Restart
Cycle Steps
Slight Delay at Startup
Power On
CTh in control
3-min. Comp on timer starts
EvapFM energized Comp energized
ConFM energized EvapFM de-energized
Comp de-energized ConFM de-energized EvapFM de-energized
Comp de-energized ConFM de-energized EvapFM de-energized
Comp energized ConFM energized EvapFM energized
2. Cool Down Achieved
3-min. Comp off timer starts
CTh warms to 10°F (-12°C) above setpoint
5. Defrost Termination
DTH warms to 55°F (13°C) or 25 mins maximum defrost timer terminates
Legend: Comp-compressor ConFM-condenser fan motor CTh-cabinet thermistor DTh-defrost thermistor EvapFM-evaporator fan motor
Note: a) EvapFM de-energizes when door is opened on. b) 3-min. minimum Comp on timer starts when Comp energizes. c) 3-min. minimum Comp off timer starts when Comp de-energizes. d) 25-min. maximum defrost time. e) Setpoint temperature is displayed during defrost.
4. Defrost
8 hrs Interval between defrosts
25-min.
maximum
defrost
DTH in
control
Setpoint factory default : -8°F (-22°C)
2. Freezer