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VW1
Fig. 8
Indoor unit with integrated immersion heater and heating system
[Z1]
Heating system (without mixing valve)
[1]
Heat pump, outdoor unit
[2]
Manual air vent valve
[PC0]
Heating pump
[VC2]
Drain valve
[VC3]
Valves for the heating system
[VL1]
Automatic air vent valve
[GC1]
Pressure gauge
[SC1]
Water/air filter
[VW1]
3-way mixing valve
[VW2]
Fill valve
See fig. 8:
1. Make sure the power supply to the heat pump and indoor unit is not
connected before the system has been completely filled and vented.
2. Activate automatic venting of VL1 by unscrewing the screw a couple
of turns without removing it.
3. Connect a hose to the heating system drain valve VC2.
4. Open the valve VC3, drain valve VC2 and fill valve VW2 to fill the
heating system.
5. Open the manual air vent valve on top of the electric heater until
water discharges without air. Close the valve afterwards.
6. Continue filling until only water comes out of the outlet hose and
bubbles no longer form in the heating system. Where appropriate,
take additional measures to vent the heating system.
7. Close the drain valve VC2.
8. Keep filling until the pressure display GC1 shows 2 bar.
9. If a DHW cylinder is installed, also fill and vent this.
10.Close the fill valve VW2.
11.Remove the hose from VC2.
12. Chapter 6.1.
5.6.3
Heating pump (PC0)
The PC0 heating pump (integrated into AWES) is equipped with a PWM
control (speed-controlled). The pump settings are made at the control
Compress 3000 AWES – 6720892204 (2020/06)
unit of the indoor unit for the given heating system ( instructions of the
control unit).
The pump speed is automatically adjusted for optimum operation.
5.6.4
Heating circuit pump (PC1)
Depending on the hydraulic layout and configuration of the heating
system, a pump is needed that is selected depending on the flow rate
and pressure drop requirements.
The pump PC1 must always be connected to the installation module of
the indoor unit according to the wiring diagram.
Maximum load at the relay output of the pump PC1: 2 A, cos> 0.4. If
the load is higher, install an intermediate relay.
Installation
11
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