CLEANING THE FLOOR DRAIN
Condensation forms when the heat pump is working. This
condensation is routed via an overflow cup to a drain, e.g.
a floor drain.
The condensation water contains a certain amount of dust
and particles.
Check regularly that any floor drains are not blocked; water
must be able to run through freely. Clean, if necessary.
Saving tips
Your heat pump installation produces heat and hot water.
This occurs via the control settings you made.
Factors that affect the energy consumption are, for example,
indoor temperature, 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 expos-
ure is also an affecting factor.
Even the house ventilation affects the energy consumption.
It is therefore important to perform a ventilation adjustment
shortly after installing the heat pump. When adjusting
ventilation, a ventilation technician sets the house ventila-
tion device, outdoor air damper and the fan in S735 accord-
ing to the projected values of the house.
Also remember:
• Open the thermostat valves completely (except in rooms
where you want it to be cooler). This is important, as fully
or partially closed thermostat valves slow the flow in the
climate system, which results in S735 working at a higher
temperature. This in turn can lead to increased energy
consumption.
• During the adjustment period (winter time), all thermostat
valves should be fully open. The heat pump's heating
settings are then adjusted so that the correct indoor
temperature is obtained, in most rooms, regardless of the
outdoor temperature. In rooms where a lower temperature
is required, the thermostat valves are lowered to the de-
sired level. After about a month, the remaining thermo-
stats can be lowered slightly to avoid an increase of the
room temperature due to solar radiation, stove heat, etc.
Further reductions may be required later on.
• You can lower the operating cost when away from home
by scheduling selected parts of the system. This is done
in menu 6 - "Scheduling".
• If you select "Small" in menu 2.2 - "Hot water demand",
less energy is used.
NIBE S735Chapter 5 | Maintenance of S73514
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