Disassembly Procedure - Mitsubishi Electric EHSC-VM2B Service Manual

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11

DISASSEMBLY PROCEDURE

<Preparation for the repair service>
● Prepare the proper tools.
● Prepare the proper protectors.
● Provide adequate ventilation.
● After stopping the operation of the cylinder and outdoor unit, turn off the power-supply breaker and remove the
power plug.
● Discharge the condenser before the work involving the electric parts.
● Allow parts to cool.
● Do not expose the electric parts to water.
● When replacing or servicing water circuit parts, drain system first.
EHSC-VM2B, EHSC-VM6B, EHSC-YM9B, EHSC-TM9B, EHSC-VM6EB, EHSC-YM9EB,
EHPX-VM2B, EHPX-VM6B, EHPX-YM9B, ERSC-VM2B
Check individual illustrations and positions of the parts by referring to the parts catalog included in this manual.
Some lead wires and pipes are bundled with Bands. Cut the bands to undo the fastened pipes and lead wires if necessary.
When bundling the lead wires and pipes again, use new commercially available bands.
When removing the parts associated with water pipe work, drain the hydrobox as necessary. (Refer to "Draining the Hydrobox"
on page 30.)
When draining the hydrobox, keep water from splashing on the internal parts (mainly electric parts and insulations).
DISASSEMBLY PROCEDURE
1. How to remove the front panel
(1) Remove the 2 screws at the bottom of the hydrobox. (Photo 1-1)
(2) Slightly lift and pull out the front panel from the hydrobox. (Photo
1-1)
(3) Disconnect the relay connector connecting from the main
controller. (Photo 1-2)
Photo 1-2
Connector
2. How to remove the main controller
(1) Remove the front panel. (Refer to Procedure 1).
(2) Turn the front panel over and remove the 4 screws retaining the
controller support. (Photo 2-1)
(3) Remove the main controller from the case while moving up the
claw at the top of the case. (Figure 2-1)
Figure 2-1
OCH532A
PHOTOS & ILLUSTRATION
Photo 1-1
Front panel
Controller support
Photo 2-1
Screws
68
Main controller
Screws
Front panel

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