Preparation For Servicing - Mitsubishi Electric PURY-M200YNW-A1 Service Handbook

[8-14 HBC Maintenance Instructions (Applicable to main and sub HBCs) ]
8-14-4

Preparation for servicing

Before starting service work, remove the service panels and open the control box.
See below for the necessary preparation work.
«To remove the service panel (upper panel)»
Unscrew the two fixing screws on the upper service panel, lift up the panel to unhook it from the hooks, and pull forward to
remove it.
Service panel (upper panel)
«To remove the service panel (lower panel)»
Unscrew the eight fixing screws on the lower service panel, lift up the panel to unhook it from the hooks, and pull forward to
remove it.
Service panel (lower panel)
«To open the control box»
Remove the lower service panel.
1
Disconnect all connectors except the power-supply wire connector, and then pull the wires out of the control box.
2
Unscrew the four screws on the control box, and loosen one screw.
3
While lifting up the control box, open the control box to 90°.
4
After completing service work, close the control box, and then reconnect all connectors to the circuit board.
5
Control box
134
- chapter 8
Hooking structure
Hooking structure
Control box
: Unscrew the screw.
: Loosen the screw.
Open to 90°.
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