Heating circuit 2 and 3
See the instructions for heating circuit 1 setup. The circulation pump and control valve for heating circuit 2
and 3 require an auxiliary controller.
4.6.1 Typical heating curve adjustments
1. If the room temperature is too cold when the outdoor temperature is 0 °C, slightly
increase the flow setpoint at outdoor temperature points −2 °C and +8 °C.
2. Wait for at least two or three days to see if the change has made a difference.
3. Adjust the curve if necessary.
4.6.2 Curing concrete floors with a heat pump
It is not advisable to use the heat pump to cure floor structures.
● Keep the temperature considerably lower than usual (maximum: +20 °C) before the
concrete slab has cured and after the floor has been tiled.
● Increase the temperature gradually over a longer period of time.
● Keep the temperature as even as possible.
● Check the temperature values and curing times from the floor or floor heating
supplier (or from plans and specifications).
4.7 Additional heating, space heating
Additional heating, space heating
An electric immersion heater (in-line heater) provides heating in the same way as the compressor and
uses the same setpoint values. The heater switches on and off (and transitions between higher and lower
power stages) with a delay.
Internal electric heater
The condenser flow line includes an electric in-line heater.
CUBE: standard equipment, installed at the factory
ECO: optional accessory
Additional heating
Not in use
The condenser circuit has no in-line heater (electric immersion heater).
Start delay with
compressor
The electric heater’s start delay in space heating. Once the delay has elapsed, the
first power stage will switch on.
●
Typical setting: 120–600
● Increase the delay to move forward the point at which the heater is switched on
(and starts to supplement the compressor).
The delay is based on degree minutes, and it applies when the compressor
is running and the flow temperature is below its setpoint. Once the measured
temperature is above the setpoint, the delay will be reset.
● Delay calculation: flow setpoint – measured flow temperature.
● The following power stages are governed by the
Power increase delay
.
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