Therefore, ensure that the opening on the safety valve overflow pipe is
always unimpeded.
The function of the safety valve must be checked regularly by a person
competent for the job. Perform checks as follows:
1. Open the valve by turning the knob anti-clockwise carefully.
2. Check that water flows through the valve.
3. Close the valve by releasing it. If it does not close automatically when
released, turn it anti-clockwise slightly.
Saving tips
Your heat pump installation produces heat and/or hot water. This occurs
via the control settings you made.
Factors that affect the energy consumption are, for example, indoor tem-
perature, hot water consumption, the insulation level of the house and
whether the house has many large window surfaces. The position of the
house, e.g. wind exposure is also an affecting factor.
Also remember:
႑
Open the thermostat valves completely (except in the rooms that are to
be kept cooler for various reasons, e.g. bedrooms). The thermostats slow
the flow in the heating system, which the heat pump wants to com-
pensate with increased temperatures. It then works harder and consumes
more electrical energy.
႑
You can lower the temperature when away from the house by
scheduling "holiday setting" in menu 4.7. See page 56 for instructions.
႑
If you activate "Hot water Economy", less energy is used.
NIBE™ F1145Chapter 2 | The heat pump – the heart of the house20
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