York Floor Ceiling R-410A 50Hz Service Manual download pdf (Page 299)

Controller

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Indoor LED Malfunction Code

Display Contents Explanation of Malfunction

All lamps are off Standing-by

Operation lamp is on ON

PRE./DEF. lamp is on Anti-cooling or Defrosting

Timer lamp is on Timer function is on

Timer lamp flashes

Indoor/outdoor communication

Operation lamp flashes Indoors temp. Sensor abnormal

Alarm lamp flashes quickly Water-level switch abnormal

DEF. Lamp flashes Mode-confliction malfunction

Alarm lamp flashes slowly Outdoor malfunction

7. CN10―Display board socket

The display board in digital scroll system is just to display running conditions and

malfunction information. The manual button is just to check the address code and power code

of indoor units

8. CN14―SWING

9. CN8 ―Indoor EXV

12V weak-electricity control. After the compressor starts, the EXV of the matching indoor

units under ON mode will be open at certain opening-degree and the EXV of the matching

indoor units under OFF, standing-by, Fan mode or Mode confliction will be close.

When forced-cooling, all indoor EXV will be forced open.

The action of EXV can be seen from a 5-core or 6-core step-motor that is connected here

to replace EXV.

10. CN12―Auxiliary electric-heater, 12V DC.

11. CN1―Transformer input socket (TRANS IN), 220V strong-electricity.

The power supply of 220V passes the fuse, anti-jamming inductance and PTC protector and

then connects to the terminal in the PCB.

12. N ― Zero-wire output socket.

Supply to indoor fan motor that needs separate zero-wire.

13. CN13―SWING

Output 220 V. Use 220V synchronization swing-motor. The action is as same as CN14 step-

motor.

1 2 ... 294 295 296 297 298 299 300 301 302 303 304 ... 384 385

TECHNICAL SERVICE MANUAL 1
Part I General Information 5
Contents 18
Part 3 Outdoor 27
YDS-100WC15/35 50
YDS-140WC15/35 50
A 624 1030 52
B 55 52
C 1030 52
Part 4.1 Four-way cassette 72
Piping: 8m (horizontal) 79
Notes: 80
YDS-28-80KC 230 170 89
YDS-90-140KC 300 190 89
Indoor unit H(mm) 90
YDS-28-80KC ≥260 90
YDS-90-140KC ≥300 90
YDS-22-56GC ≥280 90
- 100 101
- 101 102
Part 4.2 Wall Mounted 103
- 103 104
- 104 105
- 105 106
- 106 107
- 107 108
3. Capacity table 109
- 109 110
- 110 111
- 111 112
- 112 113
- 114 115
- 115 116
- 116 117
- 117 118
YDS-45-56EC/HC 119
- 119 120
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Part 4.4 Medium ESP Duct 152
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Part 5 Installation 240
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Gr ounded wi r e 281
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Part 6 Control System 289
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Form No. 035M00457-000 385
2009 Johnson Controls, Inc 385

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York Floor Ceiling R-410A 50Hz Service Manual Page 299

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