31
SERENE SC112G
Replacement Procedures
Service Manual
Controller
Terminals
Refer to Figure 7 below for controller termination details.
Control Probe
The control probe is attached to a bracket on the evaporator shroud and
plugs into the rear of the electronic controller.
To replace the control probe
Evaporator
Probe
The evaporator probe is located inside the evaporator coil and plugs into the
rear of the electronic controller.
To replace the evaporator probe
Blue
Brown
Black
White
Red
Door switch
Evaporator probe
Control probe
Supply
Compressor
Fans
Lights
Brown
White
Red
Black
Black
Black
Figure 7: Controller
termination
1. Isolate the chiller from the power supply, separate the top cabinet assembly
from the bottom refrigeration system and gain access to level three of the
refrigeration system (see page 25).
2. Gain access to the terminals at the rear of the electronic controller (see
3. Unclip and detatch the
control probe and cable
from the evaporator
shroud.
4. Trace the cable back to the terminals at the rear of the electronic controller
and detatch.
5. Attach the new control probe cable to the terminals at the rear of the
electronic controller and fit the cable following the same path as the original
probe cable. Clip the probe into the bracket on the evaporator shroud and
reassemble.
1. Isolate the chiller from the power supply, seperate the top cabinet assembly
from the bottom refrigeration system and gain access to level three of the
refrigeration system (see page 25).
2. Gain access to the terminals at the rear of the electronic controller (see
3. Unclip and detatch the control probe and cable from the evaporator shroud
(see above).
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