Johnson Controls DHR18CSB21S, Service Manual

Page: 87 / 93

Service Manual
78
Disassembly of evaporator components
Important: Make sure that the power supply is turned off. Work deliberately to avoid damaging the copper tube
assemblies and the fins of the coil.
Step Illustration Handling Instruction
Removal of evaporator
coil
Remove
the
six
screws of
the coil
,
three
screws of
the water channel
and the
two
screws of
the condensate deflector
to
remove the evaporator.
Removal of discharge air guide
Important: Make sure that the power supply is off before disassembling and protect all the parts during disassembly.
Step Illustration Handling Instruction
Removal of the
discharge air guide
Remove the display board, mounting
support and mounting plate of
the
motor in
this order
.
Disassembly
of fan and motor components
Important: Make sure that the power supply is turned off before disassembling and protect all the parts
during disassembly, especially the fastening screws for the fans.
Step Illustration Handling Instruction
1. Disassembly of front
and back
fan cage housings
Press the buckle at the joints of front and
back
housings
with hands and pull upward
to remove the front
housing
. Then remove
the screws on the back
housing
. Lift the
buckle of
the
back
housing
with hands and
remove it.
2.
Removal of fan
assemblies
Unscrew the
two
screws of
the center
coupling, take out the
main
shaft and
blower wheels
, then loosen the
set
screw
s
of
the blower wheels to remove them from
the main shaft.