EN
1 - Logging of last 10 alarms
The following are stored for each alarm:
•
date
•
time
•
alarm code
•
outdoor temperature
•
water outlet temperature
•
water inlet temperature
•
frequency requested
To view the log:
access the "set" menu
1.
scroll the submenus until you reach "Hist", and enter
2.
the parameter "CAL0" allows you to select the alarm you want to
3.
view, and then select an alarm from 0 to 9.
The alarms are:
Code
Display Alarm
0
OutA
Outdoor temperature probe
1
3-4
Water inlet temperature probe
2
OutU
Water outlet temperature probe
3
Sant
DHW temperature probe
4
HP
Alarm from MAIN PCB (view the alarm on the
display of the MAIN PCB)
5
Ambt
Indoor ambient temperature probe (CRONO-TH)
6
AmbH
Indoor ambient humidity probe (CRONO-TH)
7
Cond
Water temperature too low
8
Surr
Water temperature too high
•
the parameter "LAL0" displays the alarm code.
•
the parameter "LAL1" displays the date on which the alarm was
triggered.
•
the parameter "LAL2" displays the time at which the alarm was
triggered.
•
the parameter "LAL3" displays the outdoor temperature at the mo-
ment the alarm was triggered.
•
the parameter "LAL4" displays the outlet water temperature at the
moment the alarm was triggered.
•
the parameter "LAL5" displays the inlet water temperature at the
moment the alarm was triggered.
•
the parameter "LAL6" displays the requested frequency percentage
at the moment the alarm was triggered.
2 - Protection for water temperature too low (Cooling
mode)
If the water outlet Temp. is lower than 4.0°C or water inlet Temp.is
lower than 5.0°C, the "Cond" alarm triggers activating the circulator and
switching off the compressor. The alarm automatically resets up to a
maximum of 3 times in 60 minutes, after which the alarm remains active.
Cut power to the unit to reset it.
The minimum Set-point on the cooling delivery water is 6.5°C (Par. 219-
220-222-223).
3 - Activation of consent of additional heater when the
heat pump is in HP alarm (in winter mode)
If an alarm is triggered on the HP and it cannot produce hot water, the
contact F-L (ExtHeat source) is closed, if OPEr ≠ 0 is enabled. (Par. 137).
Section II :: Installation and maintenance
53