Mitsubishi Heavy Industries FDU224KXZE1 User Manual

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(3) Replace the PCB
1. Exchange PCB after detaching all connectors connected with the PCB.
2. Fix the pwb so as not to pinch the wirings.
3. Connect connectors to the PCB. Match the wiring connector to the connector color on the PCB and connect it.
4. Match the setting switches (include "J1") with the former PCB.
(4) Control PCB
Parts mounting are different by the kind of PCB.
Part number
227
□□
CNT (Blue)
External control
CNJ (White)
Louver motor
CNI (Blue)
Float SW
CNN (Yellow)
Thermistor
(Heat exchanger)
CNH (Black)
Thermistor
(Return air)
CNW2 (White)
Power PCB
CNB (White)
Remote control
CNZ (White)
HA
CNE (White)
RAM checker
CNC (Red)
Humidity
sensor
CNR (White)
Drain motor
SW6
Capacity setting
SW7
Function setting
SW8
Capacity setting
Function setting
CNV (White)
Auto lift
CNK2 (Black)
Superlink(spare)
CNK1 (White)
Superlink
CNF (Yellow)
Thermistor
(Air supply)
CNA (Red)
Expansion
valve
CNO (Red)
Heater output
CND (Black)
Ventilation
unit
CNT2 (Red)
Branching
control
J1 setting
Address setting
SW1,2 (Blue)
Indoor unit
SW3,4 (Green)
Outdoor unit
CNTA (Blue)
External input
CNV2 (Black)
Auto clean
panel
SW5
Function setting

Mitsubishi Heavy Industries FDU224KXZE1 Specifications

General

Type	Split System
Cooling Capacity (kW)	22.4
Heating Capacity (kW)	25.0
Indoor Unit Model	FDU224KXZE1
Outdoor Unit Model	FDC224KXZE1
Refrigerant	R410A