Trimming The Heating System; Instructions - York Geysir User Manual

4

Trimming the heating system

To obtain a heating system balance and obtain an even and comfortable indoor temperature,
you must adjust your heating system according to the example below.
Adjust the heating system during the winter to obtain the greatest possible output.
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Trimming must be carried out over a few days as the inertia in the heating system
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causes the indoor temperature to change slowly.
1. Choose one of the house's rooms as a reference room for the indoor temperature,
where the highest temperature is required, 20-21°C.
2. Place a thermometer in the room.
3. Open all the heating system's radiator valves fully.
4. Leave the heat pump's ROOM value set at 20°C. See the "Instructions – Setting the
ROOM value" section for further information.
5. Note the temperature in the reference room at different points in time over a 24 hour
period.
6. Adjust the ROOM value so that the reference room reaches your required indoor tempe-
rature of 20-21°C. Remember that other rooms will have different temperatures during
trimming, but these are adjusted later.
7. If the ROOM value must be adjusted more than 3°C upwards or downwards the CURVE
value must be adjusted instead. See the "Instructions – Adjusting the CURVE value"
section for further information.
8. If the indoor temperature varies several degrees despite trimming, a specific part of
the heat curve may need adjusting. Check at what outdoor temperature the variation is
greatest and adjust the curve at the corresponding value (CURVE 5, CURVE 0, CURVE
-5). See the "Instructions – Adjusting a specific part of the heat curve" section for further
information.
9. When the reference room has an even temperature of 20-21°C over a 24 hour period,
you can adjust the radiator valves in the other rooms so that their indoor temperatures
are the same temperature or lower than the reference room.
5

Instructions

An authorized installer carries out the basic settings of the heat pump at installation. You can
carry out the following yourself:
Setting operating mode
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Setting ROOM values
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Adjusting CURVE values
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Adjusting a specific part of the heat curve
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Setting the desired maximum and minimum supply temperature
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Setting HEATSTOP
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Reading off the hot water temperature or different temperatures in the heat pump
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Calculate the heat pump's total energy consumption
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For Geysir Air: defrost the outdoor unit
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