15
6.1.3 Combined key functions (in operating mode only)
When the boiler is in the operating mode, keys with the illuminated symbols above
have a double function (Program and Switch).
To use them for a Program function press the key once - and for a Switch function
(either on or off) press the key and hold for 2 secs.
The status of the switch function will be confirmed by the illuminated symbol as fol-
lows:
‘
s
‘-key and
r
-symbol:
- (symbol) not illuminated: HTG under normal control
- red (symbol) on: HTG off (manual override)
‘
e
’-key and
k
-symbol:
- (symbol) not illuminated: DHW under normal control
- red (symbol) on: DHW off (manual override)
[+]-key and
p
-symbol:
- green (symbol) on: continuous pump operation
- (symbol) not illuminated: pump under boiler control
[-]-key and
h
-symbol:
- green (symbol) on: HTG on (manual override)
- (symbol) not illuminated: HTG under normal control
NOTE
: In the Switch function, (in order to protect the boiler and the installation) the
flow temperature cannot exceed it’s pre-set maximum. It is also not possible to change
any parameters.
Forced mode ‘high’ (
h[[
)
By pressing the ‘
m
’ and [
+
]-key simultaneously in operating mode, the boiler will burn
at maximum power. The letter
h
will now appear on the display.
By pressing the [
+
] and [
-
]-keys simultaneously, the boiler will return to operating
mode.
Following a manual override the boiler will return to normal (auto control) if no keys are
used within a 15 minute period
Forced mode ‘low’ (
l[[
)
By pressing the ‘
m
’ and [
-
]-key simultaneously in operating mode, the boiler will burn at
minimum power. The letter
l
will now appear on the display.
By pressing the [
+
]and [
-
]-keys simultaneously, the boiler will return to operating mode.
Following a manual override the boiler will return to normal (auto control) if no keys are
used within a 15 minute period.
