6
Case Refrigeration
Operation
Each self-contained model is equipped with its own condensing unit located beneath the display area. The unit will be
charged per nameplate refrigerant and shipped from the factory with all service valves open, completely ready for opera-
tion when electrical power has been connected.
The self-contained refrigeration system which is thermostatically regulated. The thermostat in the case is set to a certain
cut out point in which the case will refrigerate until that cut out point is reached and will cease to refrigerate the case by
the thermostat.
Controls and Adjustments
Refrigeration Controls
Defrost Controls
Model
Product
Application
Discharge Air
Temperature
Defrost
Frequency
Cycle
Type of
Defrost
Termination
Temperature
Fail-safe Time
(Minutes)
Mobile
Produce
Non-Critical
Temp
27°F
30 minutes
every 6 hours
Off Time
48°F Evap
Temp
40
1. The Safe-NET III Controller controls refrigeration temperature. This is factory installed in the control panel. Adjust
this control knob to maintain the discharge air temperature shown. Measure discharge air temperatures at the center
of the honeycomb. The defrost setting is factory set as shown above.
Condensate Pan Setup
Setup:
There is one condensate evaporator pan on this unit. The drain pipe from the case feeds into the condensate pan, once
water levels are high enough in the condensate pan the float switch level is triggered which will then trigger the heater to
raise temperature therefore evaporating the water into the case airstream.
EVAP PAN
Summary of Contents for Chino MPC-ET Series
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