26
Geothermal heating pump alarms
Meas. Heating pump
type
Alarm
Explanation
DI 1
T8-T80,
V7.0-V30.0,
Vs6.0-Vs12.0
V8-15,
T8-T60 and
S8-S15
Electric heat
In full-effect geothermal heating the “Electric heat” alarm is given when the
electric heater is switched on.
(V8-15, T8-T60 and S8-S15 models have a 10 s delay).
T8-T80,
V7.0-V30.0,
Vs6.0-Vs12.0
V8-15,
T8-T60 and
S8-S15
Compressor alarm
If the controller has given the compressor a running permit but measurements
does not receive running information, a ”Compressor alarm” deviation alarm is
given and the controller deletes the compressor’s running permit.
V8-15, T8-T60 ja S8-S15:
The 1-phase compressor tries to restart after 7 minutes if full effect geothermal
heating and after 10 minutes if limited effect geoth. heating and after that at
60 minute intervals if the electrical heating resistor is not on. If the compres-
sor starts up, it has to remain running for at least 2 minutes so the compressor
alarm is deleted.
T8-T80, V7.0-V30.0 ja Vs6.0-Vs12.0:
The 1-phase compressor tries to restart after 6 minutes. (The compressor starts
without delay when the selector switch is turned from the 0 position to the first start
position.)
An alarm can be caused by: the overcurrent protection of the overpressure pres-
sostat, compressor or geothermal heating pump (acknowledged by the electric-
ity distribution cabinets) or the low pressure pressostate ( acknowledged by the
pressostat).
Geopro GS
Controller is not receiving the running information from the compressor, even it
should be running. This alarm is prevented during HW ExtraHeat and HW Extra-
Time for so long that the compressor has stopped once.
(Connection: when the compressor is running the contact is open). The alarm is
automatically set off after 5 minutes, after which the compressor is allowed the
start up again.
Geopro GS
Deviation alarm if the compressor is switched on and no running information is
received via feedback. Note! When this alarm occurs, the compressor control is
switched off. The alarm is automatically acknowledged after 5 minutes, after
which the compressor is allowed the start up again.
M10
T8-T80,
V7.0-V30.0,
Vs6.0-Vs12.0
V8-15,
T8-T60 and
S8-S15
Upper part overheat
If the temp of the accumulator’s upper part (M11) exceeds 95°C, an “Overheat”
alarm is given; (the alarm disappears when the temperature drops below 85°C)
Geopro GS
Geopro SH
Brine low limit
The low temperature of the ground brine outflow. Setting the limit value: Main-
tenance mode / set values /Brine Alarm set value.
Geopro GS
Geopro SH
Compressor
overcurrent
protection
The alarm of the compressor’s over-load relay.
Geopro GS
Geopro SH
El. resistor overheating
The over heating alarm of the electrical heating resistor. Please note! Alarms
can be set off only with electrical heating resistor’s manual set off -switch.
(Alarm from the closing switch)
