76 NIBE F1330
Miscellaneous
Actions with operating disturbances
Alarm
In the event of an alarm the background lighting flashes
and the alarm is presented in plain text on the affected
heat pump if the screen saver is active. The alarm status is
also shown in menu 0.1.x and 5.2.0 as well as 5.3.0. If a
constant alarm occurs this is saved in the alarm log togeth-
er with numerous temperatures and output statuses (menu
9.3.0).
All alarms stop the compressor affected by the fault.
In the event of a constant alarm, the heat pump alarm
relay is activated (VPL) on the affected heat pump. A com-
mon alarm is also activated on the Master when alarm oc-
curs on any of the heat pumps in the system (SL).
Both relays are potential free and may be loaded max. with
250 V and 2 A. The relays are drawn in the alarm positions
on the wiring diagram.
The heat pump alarm (VPL) is connected to the termi-
nal blocks X2:1 (signal feed), X2:2 (NC in the event of an
alarm), X2:3 (NO in the event of an alarm) on the EBV-card.
Common alarm (SL) is connected to the terminal blocks
X3:1 (signal fed), X3:2 (NC in the event of an alarm) and
X3:3 (NO in the event of an alarm) on the EBV-card.
Alarm with automatic resetting
High condenser return
The temperature on the incoming heating medium (VBRA
or VBRB) is higher than maximum temperature in menu
5.4.1.
This may be due to:
Q Too high flow on the heating medium.
Q Too high stop temperature for hot water charging,
check menu 1.2.
The alarm is reset when the temperature drops by
2 degrees below the set max temperature.
Hi Brinealarm
Incoming brine temperature (KBinA) exceeds the value set
in menu 5.4.3.
The alarm is reset when the temperature drops by
2 degrees below the set temperature.
Lowbrinealarm
The temperature on the outgoing brine pump (KButA or
KButB) is lower than the value set in menu 5.4.2.
This may be due to:
Q Too low flow on the brine.
The alarm is reset when the temperature increases
by 2 degrees above the set temperature.
Hot gas-alarm
Occurs when the hot gas sensor (HGA or HGB) tempera-
ture exceeds 135 °C.
This may be due to:
Q Defective/incorrect setting on the expansion valve
The alarm is reset when the temperature drops below
90 °C. Becomes continuous after three repetitions within
240 minutes.
Com. error
Occurs when communication with one of the units fails.
This may be due to:
Q Broken cable between heat pumps.
Q Incorrect Master/Slave setting. See the section
Description of functions - Start up > Master / Slave.
The alarm is reset automatically within 10 minutes from
when the cause of the fault was rectified.
High condenser flow
The temperature of the outgoing heating medium (VBFA or
VBFB) is outside the compressor’s working range.
This may be due to:
Q Incorrect flow.
Q Incorrect settings
The alarm is reset when the temperature drops 2 degrees
on the return line.
X2
X3
+EBV-card
+EBV-card
To Next Page
Loading...
Need help?
General
