Johnson Controls DHR18CSB21S, Service Manual

Page: 90 / 93

Service Manual
81
Evaporator coil removal
Important: Make sure that the power supply is cut off and protect the copper tube and aluminum fin if coil is to be
re-used.
Step Illustration Handling Instruction
Removing the coil
Remove the six
screws of
the evaporator
coil
,
three
screws of
the water channel
and
the
two
screws of
the condensate reflector
to remove the evaporator
coil
.
Removal of the discharge air guide
Important: Make sure that the power supply is turned 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
.
Removal
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 fans.
Step Illustration Handling Instruction
Disassembly of front
and back
fan cage
housings
Press the buckle at the joints of front and back
of
the fan cage housings by
hand and pull upward
to remove the front
housing
. Then remove the
screws on the back
housing
. Lift the buckle of
back
housing
with hands and remove it.
Removal
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 fans.
Step Illustration Handling Instruction
1.
Removal
of fans
Unscrew the
two
screws of
the center
coupling,
take out the
main
shaft and
blower wheels
, then
loosen the screws of the blower wheels to
remove them from the main shaft.