Danfoss DHP-H User Manual download pdf (Page 29)

Danfoss – 29VUBMA102

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.

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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

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 tem-

perature 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” sec-

tion 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 great-

est 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.

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Danfoss DHP-H User Manual Page 29