Service Manual
Table Of Contents

10
For RM-45-SD-HC
1. Startup/Cool Down
3. Cool Down Restart
Cycle Steps
Slight
Delay at
Startup
Power On
CTh in contro
l
3-min. Comp on
timer starts
EvapFM energized Comp energized
ConFM energized
EvapFM energized
Comp de-energized
ConFM de-energized
EvapFM 5 Mins ON/
5 Mins OFF
Comp de-energized
ConFM de-energized
EvapFM energized
Comp energized
ConFM energized
EvapFM energized
2. Cool Down Achieved
3-min. Comp off
timer starts
Factory default
35.6°F (2°C)
CTh warms
to 8°F (4°C)
above
setpoint
5. Defrost Termination
Defrost
termination
only by
maximum
time
programmed
Legend:
Comp-compressor
ConFM-condenser fan motor
CTh-cabinet 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) Temperature displayed is frozen during defrost.
4. Defrost
Defrost initiation occurs
every 4-hrs. of cumulative
compressor run time for
25-min