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8
FUNCTIONAL DESCRIPTION
8
FUNCTIONAL
DESCRIPTION
8.1 Heat Pump Remote Control Unit
The heat pump can be switched on and off by means
of the remote control positioned inside the building.
Switching off in this case means switching to a
"standby" function, i.e. as long as the heat pump is
supplied with mains power, the frost protection
function of the heat pump remains active. If the water
temperature is too low, first the heating circulating
pump, and if this is not enough, also the compressor
must be put in operation. The remote control allows
you to set the heating or cooling operating mode
(the switchover delay from the heating to the cooling
mode, or vice-versa, is 10 min.) as well as the
temperature level of the heating water.
12 3
4
1) Switch On/Standby
2) LED (green) is illuminated regardless of the
switch position (indicates operational readi-
ness of heat pump)
3) Switch "Heating" (left side depressed)
Switch "Cooling" (right side depressed)
4) Dial for selecting heating water setpoint
temperature
1) on = compressor is operating
2) on = fan is operating
3) off = reversing valve set to "Heating"
on = reversing valve set to "Cooling" or
"Defrost"
4) on = heating circulating pump is operating
5) off = output backup heater off
6) on = call for frost protection, HP is heating
off = call for frost protection off
7) on = low pressure pressostat okay
8) off = defrost process in progress or
"Heating mode"
on = defrost process is terminated or
"Cooling mode"
9) not used
10) not used
11) flashing during operation
12) flashing in the event of a malfunction
8.3 Heating Function
Set switch (1) to position On (I) to put heat pump
into operation. The heating mode can be preselected
by placing switch (3) to the Heating ( ) position.
The desired return temperature can be set using
selector dial (4), the relevant call for heat is
controlled by the potentiometer and lies within a
range of min. 10 °C and max. 55 °C. If the preset
temperature is reached, the heat pump switches off.
Once the return temperature drops below the preset
temperature by 4 Kelvin, the heat pump switches
back on. In the event that the preset return
temperature cannot be reached, the output for the
back-up heater cuts in after approx. 1 hour. The heat
pump cannot be restarted until a minimum time delay
of 5 minutes has elapsed. At a supply temperature
of approx. 60 °C or if the air temperature is too low,
the heat pump switches off.
8.2 Control Board
654321
12
11
78910