Bedienungsanleitung Worcester-Bosch GB162-80 (Seite 33 von 72) (Englisch)

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Operation

6720813171 (2016/05) 33

“Chimney sweep” button

The “Chimney sweep” button ([3] is used to put the boiler into flue gas

test, service or manual operation mode.

The flue gas test enables the boiler to be run in full-load operation

manually for a short period. See table 10, “Flue gas test”, page 34.

The service mode enables the boiler to be run in part-load operation

manually for a short period. Measurements and settings are carried out

on the boiler during service mode. ( table 11, “Service mode”,

page 34).

Manual operation mode enables the boiler to be operated manually for a

long period. The boiler is switched to manual mode when the control

system has not been installed yet or is out of order ( table 12, “Manual

operation”, page 35).

A maximum heating water temperature in accordance with the setting of

the “Maximum heating water temperature” dial [8] on the BC 10 basic

controller applies during chimney sweep, service and manual operation.

“Service” button

The “Service” button [4] is used to display the current CH flow

temperature, the current system pressure etc. Also see table 22, “BC10

Display readings”, page 53, table 23, “BC10 Display settings”, page 54

and table 24, “BC10 Display codes”, page 54.

Service Tool connection

This service connection is for Worcester service engineers only.

“Burner” (On/Off) LED

The “Burner” (On/Off) LED ( fig. 69, [6]) lights up when the burner of

the boiler is active and it is extinguished when the burner is switched off.

The “Burner” (On/Off) LED indicates the burner status.

“Heat demand” LED

The “Heat demand”LED ( fig. 69, [7]) lights up when the control

system has made a heat demand and it is extinguished when this heat

demand is no longer required.

Maximum CH (boiler) flow temperature dial

The maximum CH (boiler) flow temperature ( fig. 69, [8]) is used to

set the upper CH (boiler) flow temperature limit. The unit is °C.

Display

The heating system display values, display settings and display codes

can be read out from the display ( fig. 69, [9]). If a fault occurs the

display will immediately show the accompanying fault code. The fault

code display will flash if a locking fault is detected.

“DHW mode” LED

The “DHW mode” LED ( fig. 69, [10]) lights up when a DHW request

has occurred and it is extinguished when this DHW request is no longer

required.

DHW temperature dial (Only functional when used in conjunction

with Bosch controllers)

The DHW temperature dial ( fig. 69, [11]) is used to select the

required temperature of the hot water in the hot water cylinder.

The unit is °C ( table 18, page 44).

9.2 BC10 control operating instructions

You can navigate through the menu structure of the boiler on the BC10

using the “Reset” button, the “Chimney sweep” button, the “Service

button” ( fig. 69, items 2, 3 and 4) and the display ( fig. 69, [9])

using table 9 to table 13.

The menu structure consists of 5 menus:

• Normal Operation menu

• Flue Gas Test menu

• Service Mode menu

• Manual Operation menu

• Settings menu.

WARNING:

Damage to the installation with underfloor heating: by

the floor being overheated.

▶ Limit the maximum CH flow temperature using the

“Maximum CH flow temperature” dial [8] to the

maximum flow temperature of the floor heating

circuit (usually maximum 40 °C).

WARNING:

Damage to the installation due to frost while manual

operation is switched on. After a power failure or after

switching off the supply voltage, the heating system may

freeze since manual operation is no longer active then.

▶ Start manual operation after switching on the heating

system, so that the system is permanently in

operation (especially if there is a risk of freezing).

LED Status Explanation

On Burner

operational

Boiler water is being heated.

Off Burner off The CH (boiler) flow temperature has

reached the set temperature or there is no

heat demanded.

Table 8 Meanings of “Burner” (On/Off) LED indications

Normal operation menu

Step 1 [\/2/4| Display value. Currently measured CH flow temperature in °C. Also see section 14.2, page 53.

Step 2 Continue in Normal operation menu? Yes:  step 3

No:  step 1

Step 3 Press the e button.

Step 4 [p/1.6| Display value. Currently measured system pressure in bar. Also see section 14.2, page 53.

Step 5 Press the e button.

Step 6 [-/h/\| Random display code. In this case: Operating phase: Boiler in heating mode. Also see section 14.3, page 54.

Step 7 Have at least 5 seconds passed without a button being pressed and/or has the mains voltage been interrupted? Yes:  step 1

No:  step 8

Step 8 Press the e button.  step 1

Table 9 Normal operation

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