Chappee initia+ DUO 3.33 HTE - Page 37

37
INSTALLER Section (en)
7698967.01 (1-01/18)
BOILER PUMP PERFORMANCE
The maximum CH power cannot exceed the values below. Total system losses cannot exceed 2 m of H20 and the minimum ow
rate cannot be lower than 400 l/h.
CH power (kW)
Heating circuit ow
rate (l/h)
Minimum speed
head (m H
2
O)
Maximum speed
head (m H
2
O)
6 1032 - 2,7
5 860 2,5 3,3
4 688 3,3 4,2
3 516 4,5 4,7
∆T=5 °K --- Flow temperature 35°C
CH power (kW)
Heating circuit ow
rate (l/h)
Minimum speed
head (m H
2
O)
Maximum speed
head (m H
2
O)
8 983 - 2,7
6 737 3,5 4
5 614 4 4,5
4 491 4,5 4,7
∆T=7 °K --- Flow temperature 35°C
CH power (kW)
Heating circuit ow
rate (l/h)
Minimum speed
head (m H
2
O)
Maximum speed
head (m H
2
O)
12 1032 - 2,7
10 860 2,5 3,3
8 688 3,3 4,2
6 516 4,5 4,7
5 430 4,7 5
∆T=10 °K --- Flow temperature 35°C
11.2.3 FAN SPEED SETTINGS (MAXIMUM POWER)
The maximum heating power of the boiler can be reduced to suit the requirements of the heating system it serves. A table
indicating fan speed values depending on the required maximum power output is shown below.
To access parameter P30 (2441) and modify the speed value, proceed as described in chapter 14.
Boiler model - Revs/min (rpm)
3.25 3.33
kW
G20 G31 G20 G31
11 3000 3000 - -
12 3200 3200 - -
14 3700 3600 3000 3000
16 4200 4100 3400 3200
18 - - 3700 3500
20 - - 4100 3800
22 - - 4500 4200
24 - - 4800 4500
11.2.4 EXTERNAL SENSOR
To connect this accessory, see gure to side (terminals 4-5) and
the instructions supplied with the sensor.
With the External Sensor connected, on the boiler
control panel move the set climate curve Kt in parallel (see
annex "SECTION" E and parameter P03 in the table in section
14). To increase room temperature press +, to decrease press -.
SETTING THE "Kt" CLIMATE CURVE
To set the required kt climate curve, proceed as follows:
• Access the menu as described in section 14.
• Select parameter P03.
• Select the climate curve from among those available, see the curve chart in annex "SECTION" E at the end of this manual
(the preset curve is 1.5).
KEY TO CURVE CHART Kt - "SECTION" E
Flow temp Outside temp
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