Gebwell Qi Series Installation, Operation And Maintenance Manual page 50

Ground source heat pump
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No: Failure message
224: Hot water start-up
pressure
225: Under pressure
226:Compressor 1 over
load
243: Swimming pool sensor
324: BX/extramod. same
sensors
357: Cool.circuit 1 supply
water temp.
358: Soft starter
Overheat protector of the flow-through resistor (SV2)
The purpose of the overheat protector (SV2) is to prevent the flow-through resistor (SV1) from overheating. When the
protector trips the controller enters a failure state that must be reset manually. The reset button for the overheat protector can
be found under the flow-through resistor (SV2). The controller issues alarm code 174 "Alarm contact 4 act."
50
Sensor Description
High pressure switch has tripped
E10
in connection with the start-up
of domestic hot water heating.
Under pressure switch has
E9
tripped.
Compressor motor protection
E11
has tripped.
B13
The sensors with same marking
are connected to BX entries.
The temperature of the supply
water of cooling circuit is to
low.
E25
Soft starter has given an alarm.
Cause
Measure
Vent the heating
network. Check the
network pressure.
Too low a flow in charging
Clean the strainer.
circuit. Air in the heating
Check that the
system. A clogged strainer.
charging pump is
running. If necessary
contact a qualified
technician.
Too low a flow in collector.
The shut-off/balancing
Clean the strainer on
valves in the collection loop
the collector. Add
are shut off. A clogged
more liquid in the
strainer. Too little liquid on
collector if needed. If
the collection loop. The
necessary contact a
water in the heating system
qualified technician.
is too cold (under 15°C)
Set compressor
motor protection (F1)
The compressor has tripped
on ON-position. If
the motor protection.
necessary contact a
qualified electrician.
Failure in the electrical
system
Failure in the electrical
Contact a qualified
system
technician.
The control valve is in
Check the minimum
manual mode. Incorrectly
temperature level of
set value.
the cooling circuit.
Check that the motor
Heat pump motor protection
protection is on.
is turned off. The heat
Change the phase
pump's power supply
sequence on the plug.
phases are reversed.
Check that the heat
Instantaneous power failure.
pump's fuses are
Power supply is missing a
intact. Contact a
phase. The fuse is blown.
qualified technician.
Measure
Check the functioning of
the change-over valves.
Check the functioning of
the charging circuit.
Check the functioning of
the collector. Check the
functioning of the source
pump.
Check the power supply
of the heat pump. Check
the functioning of the
compressor.
Change the correct sensor
addresses.
v3-8 23052017

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