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YICM012B21S
Johnson Controls YICM012B21S User Manual
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SM-18003
2-1
OPERA
TION
2. Operation
18
20
Table of Contents
Default Chapter
1
Service Manual
1
Important Notice
3
General Precautions
5
Important Safety Instructions
5
Installation Precautions
7
Refrigerant Precautions
8
Table of Contents
11
1 Installation
15
Outdoor Unit
16
Change-Over Box
16
Indoor Unit
16
Control Device
17
Wired Controller: Ciw01
17
Simplified Wired Controller: Cis01
17
Wireless Controller: Cir01
17
Mini Central Controller: Ccm01
17
Large Central Controller: Ccl01
17
Computerized Central Controller Management Software: Cccs01
17
Computerized Central Controller Software / Operation Ratio For Cccs01
17
Computerized Central Controller Adapter: Ccca01
17
Infrared (Ir) Receiver Kit: Cmirk01
17
Optional Parts
18
Duct Adapter: Pd-75C
18
Relay And 3 Pin Connector Kit: Psc-5RA
18
Remote Sensor: Thm-R2A
18
Connector Cable: Pcc-1A
18
2 Operation
19
Indoor Unit
20
Control Device
21
Wired Controller: Ciw01
21
Simplified Wired Controller: Cis01
21
Mini Central Controller: Ccm01
21
Large Central Controller: Ccl01
21
Computerized Central Controller Management Software: Cccs01
21
Computerized Central Controller Software / Operation Ratio For Cccs01
21
Infrared (Ir) Receiver Kit: Cmirk01
21
3 Troubleshooting
23
Initial Troubleshooting
24
Checking Electrical Wiring And Power Supply
24
Location Of Printed Circuit Boards (Pcbs)
28
Checking Rotary Switch And Dip Switch Settings
29
Checking Wired Controller
31
Checking Using 7-Segment Display
37
Checking Alarm Code History
37
Emergency Operation
37
Troubleshooting Procedures
38
Alarm Code Table
39
Troubleshooting Using Alarm Codes
40
Alarm Code
50
Abnormalities Of Devices
55
Procedures For Checking
67
Self-Checking Of Pcbs Using Wired Controller
67
Self-Checking Of Wired Controller
67
Test Run
68
Test Run Using Wired Controller
69
Test Run From Outdoor Unit Side
71
Checking The Test Run
71
Check List For Refrigerant System
72
Reset For Accumulated Operation Time Of Compressor 1-2 (Cuj1- Cuj2)
72
4 Maintenance
73
Maintenance Of Outdoor Unit
74
Maintenance Of Indoor Unit
75
Removing Air Filter And Air Inlet Grille
75
Removing Electrical Box Cover
76
Removing Optional Decorative Panel
77
Removing Turbo Fan And Fan Motor
79
Removing Printed Circuit Board
80
Removing Drain Pan
81
Removing Drain-Up Mechanism
82
Removing Float Switch
83
Removing Outlet Air Thermistor
84
Removing Liquid Pipe Thermistor, Gas Pipe Thermistor And Expansion Valve Coil
85
Removing Inlet Air Thermistor
87
Removing Auto Louver Motors And Louver
88
Cleaning Indoor Unit Heat Exchanger
89
Required Tools For Cleaning (Field Supplied)
89
Cleaning Procedure
90
Main Parts
94
For Outdoor Unit
94
For Change-Over Box
94
For Indoor Units
95
Printed Circuit Board
95
Fan Motor
95
Thermistor
96
Electronic Expansion Valve
97
5 External Input/Output And Function Setting
99
Dip Switch Settings Of Outdoor Unit
100
High Static Pressure Setting (Dsw5-No.5: On)
100
External Input/Output And Function Setting Mode For Outdoor Unit
100
External Input/Output And Function Setting Mode For Indoor Unit
101
External Input And Output Settings
103
Remote Control On/Off Function
104
Power Supply On/Off 1 (Automatic Operation When Power Supply Is On)
109
Power Supply On/Off 2 (Restarting Function After Power Failure)
109
Control by Field-Supplied Room Thermostat [ Input Setting: Code (01) (for Cooling), Code (02) (for Heating) ]
110
Remote Cooling/Heating Change [ Input Setting: Code (07) ]
111
Picking Up Operation Signal
112
Function Setting
115
Function Selection Item
115
Description Of Function Selection Item
121
Functions From Wired Controller
134
Power Saving Function
134
Schedule Function
136
Indication Function
136
Comfort Function
137
6 Field Work Instructions
139
Caution For Refrigerant Leakage
140
Modifications Of Charging Refrigerants Other Than Those Specified By Johnson Controls
141
Maintenance Work
142
Service And Maintenance Record By 7-Segment Display
143
Service And Maintenance Record By Wired Controller
144
Service And Maintenance Record
146
Saturation Curve For Refrigerant
147
Mollier Chart For R410A
148
7 Service Parts List
149
4
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Johnson Controls YICM012B21S Specifications
General
Brand
Johnson Controls
Model
YICM012B21S
Category
Air Conditioner
Language
English
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