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Building Technologies User Manual OCI600 74 319 0002 0 c
HVAC Products Operating elements of the central communication unit 15.07.2005
Display Meaning
87 PPS 2, short-circuit
88 PPS, no communication
89 Modem, no communication
90-99 Device errors
90 Data loss in RAM
91 Data loss in EEPROM
92 Electronics error in device
93 Change battery
94 Change battery of memory card
95 Time of day invalid
98 Extension module 1, error
99 Extension module 2, error
100-105 System errors / miscellaneous
100 2 clock time masters
101 Clock time source, wrong setting
102 Clock time master without power reserve
105 Maintenance alarm
106-139 Process errors
106 Source temperature too low
107 Error hot-gas compressor 1
108 Error hot-gas compressor 2
109 Boiler temperature supervision, error
110 Safety limit thermostat (SLT), lockout
111 Thermal reset limit thermostat, safety shutdown
112 Flue gas SLT, lockout
113 Flue gas supervision, safety shutdown
114 Flue gas thermostat has cut out
115 Flue gas sensor has responded
116 Flue gas sensor has shut down
117 Water pressure too high
118 Water pressure too low
119 Water pressure switch has cut out
120 Flow temperature precontrol not reached
121 Flow temperature heating circuit 1 not reached
122 Flow temperature heating circuit 2 not reached
123 Flow temperature DHW not reached
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