32
Replacement Procedures
Service Manual
SERENE SC112N-A
Power Supply
and Surge
Protector
The evaporator and condenser fan motor power supply, the sign and interior
LED lights power supply, and the surge protector are located on the middle
level (level two) of the refrigeration system. Parts within each power supply
cannot be replaced individually, if a power supply has failed the assembly
must be replaced.
To access the power supplies
Compressor
The compressor is located on the bottom layer (level one) of the refrigeration
system. If the compressor is causing excessive noise, check the mountings
to ensure there is no damage to the rubber or the washers, nuts and screws.
Before replacing the compressor, check all plugs and connections and
ensure the compressor electrics are operating correctly (see below). The
compressor must be supplied with consistent voltage over 220 volts. Ensure
the voltage does not drop at start-up. If the voltage does drop, ensure the
refrigeration system has a direct power supply (not from a multi-box or
extension cord).
To access the compressor
4. Trace the condenser fan
cable to its connector plug
and unplug the condenser
fan (cut the cable ties if
necessary).
5. Detach the condenser fan motor by undoing the two nuts on the underside of
the condenser fan baffle.
6. Fit new condenser fan motor and reassemble. Ensure cables follow original
path and are cable tied in place.
LED lights
power supply
Surge protector
Fan motor
power supply
Figure 5: Fan and light
power supply, and surge
protector
1. Isolate the chiller from the power supply, separate the top cabinet assembly
from the bottom refrigeration system and gain access to level two of the
refrigeration system (see page 29).
2. Service as necessary and reassemble.
1. Isolate the chiller from the power supply, separate the top cabinet assembly
from the bottom refrigeration system and gain access to level one of the
refrigeration system (see page 29).
