8
rebooting -
heat pump is blocked by min. time between 2 compressor starts
heating
- heat pump is heating your home
RC blocking
- heat pump is blocked by Ripple control
vol.flow control -
heat pump’s circulation pump is running
ready
- heat pump is ready to start heating as soon as there is call for heat
IR internal error
– controller error preventing the heat pump to switch on successfully
external blocking
– heat pump start is externally blocked
PWM mod.disconnected
– the PWM output module is disconnected (if used)
PWM pump failure
– fault of PWM signal controlled circulation pump
low flow
– the heating water flow through the heat pump is too low
waiting for PV
– the heat pump is waiting for the required current values from the PV plant to be
reached for start
min.run time – DHW
– HP min. running time for DHW heating
min.run time – PV
– HP min. running time during operation powered by PV system
heating from the PV
– heat pump runs on energy from PV system
cooling
– heat pump is used for cooling
flow - min.T
– heat pump is blocked by min. flow temperature
HP type not selected
– heat pump type has not been selected
CH low press. Block.
– central heating low pressure
Display of auxiliary heat source and thermal store:
1 – state of auxiliary source: heat / no heat / none
2 – current thermal store temperature (desired)
3 – Ripple control signal: on / off
Display of auxiliary heat source connected via OpenTherm interface:
1 – state of OT source heat / no heat / none
