OPERATION
6 720 648 726 (2011/07)
41
"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 70,
table 23, "BC10 Display settings", page 71 and table 24,
"BC10 Display codes", page 71.
SERVICE TOOL CONNECTION
This service connection is for Worcester service
engineers only.
"BURNER" (ON/OFF) LED
The "Burner" (On/Off) LED (
Æ
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 (
Æ
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 (
Æ
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
(
Æ
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 (
Æ
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 (
Æ
fig. 69, [11]) is used to
select the required temperature of the hot water in the
hot water cylinder. The unit is °C. See table 18, page 57.
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"
(
Æ
fig. 69, items 2, 3 and 4) and the display (
Æ
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 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freeze since manual operation is no longer
active then.
B
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
