Sequence of Operation
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RT-SVX26R-EN
Lead/Lag input. When it is activated, each time the
designated lead compressor(s) is shut off due to the load
being satisfied, the lead compressor or refrigeration
circuit switches. When the RTRM is powered up, i.e. after
a power failure, the control will default to the number one
compressor.
Coil Frost Protection
The Frostat™ control monitors the evaporator coil
temperature to prevent the evaporator from freezing due
to low operating temperatures whenever there is a
demand for cooling. When a closed circuit has occurred for
5 seconds minimum, the RTRM turns off all of the cooling
outputs. The Supply Fan will be held “On” until the Frostat
has been opened for 5 continuous seconds or for 60
seconds after the last compressor was shut “Off”,
whichever is the longest. The compressor shutdown is
communicated to Tracer, if applicable. There is no local
diagnostic for this condition.
