Bosch Compress 3000 AWES 2-6, Руководство по установке

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Commissioning
17 Compress 3000 AWES – 6720892204 (2020/06)
6 Commissioning
6.1 Venting the indoor unit
Fig. 14 Indoor unit with internal 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. 14:
1. Connect the power supply to the heat pump and indoor unit.
2. Activate "Only auxiliary heater" and make sure that the heating pump
PC1 is running.
3. Remove the pulse width modulation plug PC0 from the heating pump
PC0 so that it can operate at maximum speed.
4. Deactivate the "Only auxiliary heater" function when no more air is
coming out of the VL1 or the manual air vent valve on top of the
electric heater. Close the manual air vent valve.
5. Connect the PC0 pulse width modulation plug to the heating pump.
6. Clean the particle filter SC1.
7. Also vent via the other air vent valves of the heating system (e.g.
radiators).
8. Check the pressure on the pressure gauge GC1 and top up with the
fill valve VW2 if needed. The pressure should be 0.3–0.7 bar above
the pressure set in the expansion vessel.
9. Check that the heat pump is running and that there are no alarms.
6.2 Adjusting the operating pressure of the heating
system
Table 5 Operating pressure
▶ Top up to 1.5–2.0 bar unless otherwise specified.
▶ If the pressure does not remain constant, check whether the heating
system has any leaks and if the capacity of the expansion vessel for
the heating system is sufficient.
VW1
Display on the pressure gauge
1 bar Minimum charge pressure. When the system is cold, the
operating pressure must be kept at roughly 0.2–0.5 bar
above the pre-charge pressure of the nitrogen cushion in
the expansion vessel. The pre-charge pressure is 0.7–
1.0 bar as a rule.
3 bar Maximum charging pressure at maximum heating water
temperature: must not be exceeded (the pressure relief
valve will open).