Mitsubishi Electric CITY MULTI PEFY Series, Техническое и сервисное руководство

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[
VIII
Disassembly Procedure ]
- 24 -
HWE1804A GB
VIII Disassembly Procedure [1] Disassembly Procedure (PEFY-P36, 48NMHU-E-OA)
1. Control box
Be careful on removing heavy parts.
1. Removing the control box cover
(1) Remove the fixing screws (two) of the control box (A), and
remove the cover. (Fig.1)
*At this stage, the following servicing is possible. (Fig.2)
1) Operation and check of the switches (listed below) which
are on the control board.
 Dip switch SW1 . . . . . . . . . . . . Function change
 Dip switch SW2 . . . . . . . . . . . . Capacity code setting
 Dip switch SW3 . . . . . . . . . . . . Function change
 Dip switch SW4 . . . . . . . . . . . . Model code setting
 Dip switch SW21 . . . . . . . . . . . Static pressure setting
 Dip switch SW22 . . . . . . . . . . . Function setting
 Rotary switches SW11, 12 . . . . Address setting
 Rotary switch SW14 . . . . . . . . . Branch port setting
2) Connection check of the lead wires (listed below) which
are connected to the controller board.
 Power supply lead wire.
 Transmission lead wire x 2
 Fan motor lead wire.
 LEV lead wire
 Inlet air temperature thermistor lead wire
 Outlet air temperature thermistor
 Liquid piping temperature thermistor lead wire
 Gas piping temperature thermistor lead wire
 Drain pump lead wire
 Float switch lead wire
3) Control board exchange
4) Reactor exchange
5) Thermistor (inlet air, outlet air, liquid piping, gas piping)
exchange
6) Power supply terminal bed exchange
7) Transmission terminal bed exchange x 2
Fig.1
Fig.2
Fixing screws
(A)