Riello NXHP Series Installation, Operation And Maintenance Instructions page 68

6 -ALARM DESCRIPTION
Description
75
Inverter Fault - DC over voltage
76 Inverter Fault - Heatsink over temperature
77 Inverter Fault - AC under voltage
78 Inverter Fault - PFC over current
79
Inverter Fault - AC over voltage
80
Inverter Fault - PFC unbalanced current
81 Inverter Fault - Stator over heat
82 Inverter Fault - Printed board over temp
83
Inverter Fault - IPM temp sensor error
Inverter Fault - Input Wire Miss (three-
84
phases)
88 Inverter Fault - Other Inverter alarm
89
Real Time Clock corrupted
90 Invalid configuration
91
Invalid configuration - Wrong Unit Type
92 Invalid configuration - Wrong Unit Type
93
Invalid configuration - Wrong Supply Type
Invalid configuration - Wrong Inverter
95
Model
Invalid configuration - Wrong Hydronic
96
configuration
Invalid configuration - Compressor Map
97
Failure
Invalid configuration - Configuration not
98
allowed for Master/Slave
Invalid configuration - Master/Slave Wrong
99
Addressing
100 Emergency Stop
101 External alarm
Inverter Minor Fault - Compressor Current
200
Limit
201 Inverter Minor Fault - ID Current Limit
Inverter Minor Fault - PFCM temp sensor
202
error
Inverter Minor Fault - IMP temp sensor
203
error
204 Inverter Minor Fault - Input Current Limit
205 Inverter Minor Fault - PFC over current
206 Inverter Minor Fault - AC over voltage
210 TD inconsistent value
213 TR inconsistent value
214 TS inconsistent value
232 Flow Switch alert
240 Leak Detection Alert
245
Lower Fan running at wrong speed
246 Upper Fan running at wrong speed
68
Reset type
Stop x
Stop x
Stop x
Stop x
Stop x
Stop X
Stop X
Stop X
Stop X
Stop X
Stop X
Continue X
When correct configuration
Stop X
detected
When correct configuration
Stop X
detected
When correct configuration
Stop X
detected
When correct configuration
Stop X
detected
When correct configuration
Stop X
detected
When correct configuration
Stop X
detected
When correct configuration
Stop X
detected
When correct configuration
Stop X
detected
When correct configuration
Stop X
detected
Stop X
Continue X
Continue x
Continue x
Continue x
Continue x
Continue x
Continue x
Continue x
Continue X
Continue X
Continue X
Continue X
Continue X
Continue X
Continue X
Investigation / corrective actions
Comment
1. Stop and disconnect the unit
2. Check coil cleanliness
3. Check inverter heatsink cleanliness
1. Check main input power voltage
1. Check main input power voltage
1. Stop and disconnect the unit
2. Check coil cleanliness
3. Check inverter heatsink cleanliness
1. Stop and disconnect the unit
2. Check main input power connection
(L1/L2/L3)
1. Check pump parameter settings
1. Check Master / Slave settings
1. Check Master / Slave settings
1. Check TD sensor and its connection
1. Check TR sensor and its connection
1. Check TS sensor and its connection
1. Check if water loop installation is
correct (air venting, valve position...)
2. Check water static pressure
3. Check if water filter is not clogged
4. Check Flow switch connection and
operation
1. Check that impeller rotation is not
impeded
2. Check if coil is not fouled
1. Check that impeller rotation is not
impeded
2. Check if coil is not fouled