(Ducted High Static Type)
MAINTENANCE
4-4
SM-18001-rev.1
4.2.1.3 Removing Fan and Fan Motor
The fan and the fan motor for (H,Y)IDH018B21S can be removed only from the bottom side.
The fan and the fan motor for (H,Y)IDH024 - 048B21S can be removed from the side (electrical box side)
and the bottom side.
A. Removing Fan and Fan Motor from Side (Electrical Box Side) of Unit
(Only for (H,Y)IDH024 - 048B21S) >
Qty. of Fan Casing and Fan Runner: Each Two / Qty. of Fan Motor: One
(1) Remove the electrical box cover according to Section 4.2.1.2 “Removing PCB”.
(2) Free the wirings inside of the electrical box.
Disconnect the connector for the float switch electrical wiring. Disconnect the connectors for the
expansion valve, the gas pipe thermistor, freeze protection thermistor, air outlet thermistor, and the fan
motor from PCB1 and PCB2.
(There are two connectors for the fan motor located on the PCB2 to remove.)
(3) Remove seven screws securing the electrical box and remove the electrical box.
Phillips Screwdriver
Tool
M4 Screws
(x 7)
Electrical Box
TURN OFF all POWER supply switches.
Summary of Contents for CIDH018B21S
Page 2: ......
Page 10: ...viii SM 18001 rev 1...
Page 15: ...SM 18001 rev 1 1 1 INSTALLATION 1 Installation...
Page 19: ...SM 18001 rev 1 2 1 OPERATION 2 Operation...
Page 22: ......
Page 23: ...SM 18001 rev 1 3 1 TROUBLESHOOTING 3 Troubleshooting...
Page 75: ...MAINTENANCE SM 18001 rev 1 4 1 4 Maintenance...
Page 130: ......
Page 172: ......
Page 173: ...SM 18001 rev 1 6 1 FIELD WORK INSTRUCTIONS 6 Field Work Instructions...
Page 182: ...6 10 SM 18001 rev 1 FIELD WORK INSTRUCTIONS 6 8 Mollier Chart for R410A f t 3 l b...
Page 183: ...SERVICE PARTS LIST SM 18001 rev 1 7 1 7 Service Parts List...
Page 185: ......
Page 186: ...2018 Johnson Controls Inc SM 18001 rev 1 Code No LIT 12013047 Revised February 2019...