Bosch 11 KW Manuel d'instructions télécharger pdf (Page 54)

SETTINGS

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>>> Mixing valve signal

>>> Mixing valve open

>>> Mixing valve close

>> Alarm buzzer

>> General alarm

> Circulation pumps

>> Heating circuit pump G1

>>> Operation alternative

▶ Select if circulation pump G1 should run continuously or in optimised

operation. The setting applies to G1 of all circuits.

Continuous means that G1 is always in operation during the heating

season.

Automatic means that the circulation pump runs in approx. 10 min,

stands idle for 10 min, and so on, if it is in winter operation and there

has not been any heating demand for 40 min. Automatic operation is

cancelled when heating demand arises or winter operation is

disabled.

G1 stands idle (apart from anti-seizure operation) if it is summer

operation.

>> Heat carrier pump G2

>>> Operation alternative

▶ Select if heat carrier pump G2 should run continuously or start

automatically when the compressor starts.

The setting applies to all heat pumps' G2. In automatic operation, G2

starts for heat pump 2 when compressor 2 starts.

>>> Pump speed E2x

>>>> Fixed pump speed

▶ Set desired percentage to maintain a constant pump speed. Auto

means the pump speed will be controlled by the control unit.

>>>> Temperature difference heat transfer fluid when heating

▶ Specify the temperature difference which the heat pump will aim to

achieve. This is done by regulating the pump speed.

>>>> Temperature difference heat transfer fluid when hot water

▶ Specify the temperature difference which the heat pump will aim to

achieve. This is done by regulating the pump speed.

>>>> Pump speed at no demand

▶ Set pump speed when there is no demand. A low speed is used to

keep the system operating when there is no demand for heat.

>>> Regulator settings

>>>> P constant

>>>> I constant

>> Collector circuit pump G3

>>> Operation alternative

▶ Select if collector circuit pump G3 should run simultaneously with the

compressor or continuously.

> Screed drying

The screed drying function is used to expel humidity from the floor tiles

in newly-built houses. The drying program has the highest priority, i.e.,

all other functions than security functions and additional heat only are

disabled. All circuits contribute to the drying.

Screed drying takes place in three phases:

•Heating phase

• Phase with maximum temperature

•Cooling phase

Heating and cooling are performed stepwise; each step continues for at

least a day. The phase with maximum temperature is considered to be

one step. There are 9 steps with the factory values: Heating phase in 4

steps (25 °C, 30 °C, 35 °C, 40 °C), maximum temperature (45 °C for

four days), cooling phase in 4 steps (40 °C, 35 °C, 30 °C, 25 °C).

It is possible to cancel a running program. On completion of the program,

the heat pump returns to normal operation.

>> Activate

▶Select Yes if drying should be performed.

There is an opportunity to change the current program step.

>> Remaining time for current step (shown if drying is enabled)

Factory setting Continuous

Alternative Continuous/Automatic

Table 124 G1

Factory setting Automatic

Alternative Continuous/Automatic

Table 125 G2

Factory setting Auto

Lowest value 0% (Auto)

Highest value 100%

Table 126 Fixed pump speed

Factory setting 7K

Lowest value 3K

Highest value 15K

Table 127 Temperature difference heat transfer fluid when heating

Factory setting 7K

Lowest value 3K

Highest value 15K

Table 128 Temperature difference heat transfer fluid when hot water

Factory setting 10%

Lowest value 1%

Highest value 100%

Table 129 Pump speed at no demand

Factory setting 3.0

Lowest value 0.1

Highest value 30.0

Table 130 P constant

Factory setting 300.0

Lowest value 5.0

Highest value 600.0

Table 131 I constant

Factory setting Automatic

Alternative Continuous/Automatic

Table 132 G3

Screed drying requires the installation of underfloor

heating coils under the floor tiles. Consult with screed

manufactories for information on maximum

temperatures and time required.

Factory setting No

Alternative Yes/No

Table 133 Activate screed drying

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Bosch 11 KW Manuel d'instructions Page 54

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