Bosch WORCESTER GREENSTORE User Manual download pdf (Page 21)

Set extra heat curve with mixing valve

If the system comprises underﬂ oor heating combined with radiators, an extra

heat curve with the mixing valve should be set. The menu is only displayed

when there is an extra sensor, T4 (GT4), on the heat pump. Set the extra heat

curve using two menus: Mix. valve incr/decr and Mix. valve ﬁ ne-tune.

Increase or decrease the mixing valve

1. Press and hold the Heat button until Access = CUSTOMER2 is displayed.

2. Press the Heat button.

3. Turn the menu dial clockwise until the menu Mix. valve incr/decr is

displayed.

4. Press the Adjust button.

5. Turn the menu dial clockwise to choose a higher heat curve.

Turn the menu dial anti-clockwise to choose a lower heat curve.

6. Save the new value by pressing the Save button.

Note

The initial position of the ﬂ oor heat-

ing circuit should be set to heat curve

2. The scale covers the range 0 to 10.

Extra heat curve with mixing valve

only works with an extra ﬂ ow sensor

T4 (GT4).

Fine-tune the mixing valve

1. Press and hold the Heat button until Access = CUSTOMER2 is displayed.

2. Press the Heat button.

3. Turn the menu dial clockwise until the menu Mix. valve ﬁ ne-tune is

displayed.

4. Press the Adjust button.

5. Turn the menu dial clockwise to set an upward, parallel offset on the curve.

Turn the menu dial anti-clockwise to set a downward parallel offset on the

curve.

6. Save the new value by pressing the Save button.

Note

The example describes how to ﬁ ne-

tune the extra heat curve. The scale

covers the range -10ºC to +10ºC.

Extra functions - Customer level 2

Mix. valve incr/decr

0 2,0 10

Return adjust

Mix. valve ﬁ ne tune

-10° -0,0° 10°

Return adjust

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Bosch WORCESTER GREENSTORE User Manual Page 21