Technibel PHIE 095, Service Manual

Page: 118 / 147

118
Here below the system control alarms list concerning the heat pump itself
Sensors failure
System ctrl
box
alarm
display
Alarm
contents
Judgement conditions
clearing
condition
Judgement and correction
SEin
Disconnection, open
circuit or short
circuit
in system water inlet
temperature
S11
Open circuit or short circuit
Automatic
recovery
1. Check water inlet temperature sensor S11
2. Check connection
3. Check A1 board
SEOu
Disconnection, open
circuit or short
circuit
in system water
outlet temperature
S12
Open circuit or short circuit
Automatic
recovery
1. Check water outlet temperature sensor S12
2. Check connection
3. Check A1 board
SAE
Disconnection, open
circuit or short
circuit
in system outdoor
temperature
S13
Open circuit or short circuit
Automatic
recovery
1. Check outdoor temperature sensor S13
2. Check connection
3. Check A1 board
Heat pump defaults
System ctrl
box
alarm
display
Alarm
contents
Judgement conditions
clearing
condition
on system
Judgement and correction
Gr
Synthetic heat pump
alarm
transmitted to
system control
See § 5.1 & 5.2 Manual reset See § 5.1 & 5.2
HE
Electric support
heater default
• Water pressure in heat
pump circuit too low
• Safety thermostats on
heater activated
(80°C for auto reset
115°C for manual reset)
Automatic
recovery
1. Check water pressure in heat pump circuit
2. Check water flow in heat pump circuit
3. Check thermostats and their connection
! Important !: in case of manual reset
thermostat action, check carefully if any
components (insulation, heater,...) have
been damaged.
Replace parts if necessary.
Check also the operation of the automatic
reset thermostat.
FL
Water flow default in
heat pump
See § 5.2 Manual reset See § 5.2
Cn
System
communication
failure
Communication line
between A1 & A2 board
defective
Automatic
recovery
1. Check wiring and connections”
2. Check line supply (LED “SC” on A2 /LED” C”
on A1lighted glittering)
3. Check system configuration (parameters)
4. Check board A2
5. Check board A1