York YVAG012 Operation & Maintenance Manual page 42

AI7 Unit leaving water temperature sensor fault
AI8 Coil temperature sensor fault
DI1 Water flow switch fault or water pump overload alarm
DI3 Over pressure alarm
Communication failure ( failure on 1# unit is between principal unit and wire controller
while others for principal and subordinate unit.）
Conflict setting of unit model type
Excessive lower ambient temperature for cooling mode
Excessive lower system leaving water temperature for cooling mode
Excessive higher system leaving water temperature for heating mode
Communication failure between principal unit and T8600 or BAS
Freezing protection in winter
Excessive lower unit leaving water temperature for cooling mode
Excessive higher unit leaving water temperature for heating mode
Excessive lower unit leaving water temperature for heating mode
Excessive higher discharge temperature
Freezing protection of BPHE
Communication failure of unit （between Microboard and driver）
Mismatching of driver type
Compressor driver alarm
Excessive higher speed of fan 1
Excessive higher speed of fan 2
Excessive lower speed of fan 1
Excessive lower speed of fan 2
Microboard hardware failure
Driver hardware overcurrent
Compressor driving failure
Compressor overcurrent
Reserved
Sampling failure of compressor current
Heat sink/IPM overheating alarm
Pre-charge failure
DC bus over voltage
DC bus under voltage
AC input under voltage
AC input overcurrent
Driver check out failure
AC input hardware overcurrent
Driver temperature sensor fault
JOHNSON CONTROLS
Cooke Industries - Phone: +64 9 579 2185 Email: sales@cookeindustries.co.nz
FORM NO.: 6U5M-A11M-NB-EN
7A
8A
1d
3d
1E
2E
4E
6E
7E
9E
10E
11E
13E
15E
1F
9F
2p
4p
6p
8p
9p
10p
11p
14p
101
102
103
104
105
106
107
108
109
110
111
112
113
114
Web: www.cookeindustries.co.nz
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