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Worcester-Bosch GB162-80 Manual

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Commissioning
6720813171 (2016/05)44
▶ Measure the ionisation current. The ionisation current must be >
5 μA DC at part load operation.
▶ Enter the result in the commissioning log book ( section 10.5
“Commissioning record log book”, page 45).
▶ If the result is not as it should be, check the gas/air ratio
( section 10.2.7, page 41) or check the ionisation electrode
( section 13.2.4, page 50).
▶ Press and hold the “Chimney sweep” button ( fig. 90, [3])
(approximately 2 seconds), until the dot in the right-hand bottom
corner of the display ( fig. 90, [9]) appears. See also table 10,
“Flue gas test”, page 34.
▶ Switch off the heating system by pressing the mains switch of the
BC10 basic controller fig. 90, [1]).
▶ Remove the multimeter and reconnect the monitoring cable.
▶ Switch on the heating system by pressing the mains switch of the
BC10 basic controller ( fig. 90, [1]).
▶ Check that the boiler performance is still at the required value. See
the “Service mode” menu ( table 11, page 34).
10.3 Boiler settings
10.3.1 Setting the heating capacity
▶ Set the required heating capacity on the BC10 according to the
“Settings” menu ( table 13, page 36). See table 16 when making
these settings.
10.3.2 Setting the maximum CH flow temperature
▶ Set the upper CH flow temperature limit for heating mode
( table 17) using the “Maximum CH flow temperature” dial
( fig. 97, [8]).
This limit value does not apply to DHW mode.
10.3.3 Setting the pump run-over time
Set the pump run-over time to 24 hours if the heating system is
controlled depending on room temperature, and there is a risk of parts
of the heating system not controlled by the room controller freezing (e.g.
radiators in the garage).
▶ Set the pump run-over time according to the “Settings” menu
( table 13, page 36).
10.3.4 Switching DHW mode on/off
▶ Set the DHW mode according to the “Settings” menu ( table 13,
page 36).
10.3.5 Setting the DHW temperature
▶ Set the DHW temperature dial ( fig. 90, [10]) to the required
temperature of the hot water in the hot water cylinder ( table 18).
Display
indication
[%]
Rated heating capacity at 40/30 °C [kW]
GB162-50 GB162-65 GB162-80 GB162-100
L20 – 15.6 – 21.1
L25 – 18.7 21.1 26.0
L30 15.6 21.8 25.3 30.9
L35 18.1 24.9 29.6 35.8
L40 20.5 28.0 33.8 40.7
L45 23.0 31.1 38.0 45.8
L50 25.4 34.2 42.2 50.5
L55 27.9 37.3 46.5 55.4
L60 30.3 40.4 50.7 60.3
L65 32.8 43.5 54.9 65.2
L70 35.2 46.6 59.1 70.1
L75 37.7 49.7 63.4 75.0
L80 40.1 52.8 (
1)
50)
1) Capacity at BC10 basic controller with removed jumper.
67.6 79.9
L85 42.6 55.9 (
1)
50) 71.8 84.8
L90 45.0 59.0 (
1)
50) 76.0 89.7
L95 47.5 62.1 (
1)
50) 80.3 94.6
L-- 49.9 65.2 (
1)
50) 84.5 99.5
Table 16 Heating capacity in kW (as a percentage)
WARNING: Damage to the installation due to
overheating the floor slab when using an underfloor
heating system.
The setting at the BC10 cannot be adjusted via the menu
but must instead be set via the “Maximum CH flow
temperature” dial ( fig. 97, [8]).
▶ Limit the maximum CH flow temperature in the
“Settings” menu (in most cases 45 °C).
▶ Observe that the underfloor heating system must be
equipped with a safety limiter, e.g. via the external
switching contact ( page 28).
Dial
position
Explanation
0 No supply to radiators (e.g. only DHW mode)
30 – 90 The temperature is set permanently on the BC10 and
cannot be changed with a room controller (e. g. RC35).
Aut The temperature is determined automatically on the basis
of the heating curve. If no room controller is connected,
90 °C is the maximum CH (boiler) flow temperature.
Table 17 Setting of “Maximum CH (boiler) flow temperature” dial
If this setting [c/\/0| is seen, it switches off the frost
protection for the hot water cylinder (if present).
Dial
position
Explanation Legionella information
0 DHW mode is off (if
applicable only heating
mode)
There is no risk of legionella
contamination
ECO Do not use this setting!
30 – 45 DHW temperature in °C The risk is very low if the DHW
mode is used every day.
45 – 60 DHW temperature in °C There is no risk of legionella
contamination. This position
is recommended.
Aut DHW temperature is 60 °C There is no risk of legionella
contamination
Table 18 Settings on the DHW temperature dial
… 44 …


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