DORCHESTER DR-FC 25, Installation, Commissioning And Maintenance Instructions

Page: 44 / 98

The control panel
44 Instruction Manual DR-FC
5
gis
In this manual, the display of the control panel is shown as in Figure 5.2 , both
with and without icons.
5.3 Explanation of the
icons
Table 5.1 gives an explanation of the icons.
5.4 ON/OFF switch of
control panel
The ON/OFF switch of the control panel switches the water heater ON and OFF.
Note that in the OFF position the water heater remains electrically live, in order
for the continuous pump to stay running.
After switching on, the text
INTERNAL CHECK
appears on the display for about
10 seconds. The main menu then appears (see chapter ’8 Main menu’ ). If no
selection is made in the main menu, the water heater automatically switches to
OFF mode. See paragraph
’6.2 Operating modes’ .
n
Remark
To electrically disconnect the water heater, you must use the main switch
between the water heater and the mains power supply.
5.5 Navigation buttons
The use of these buttons is explained with the help of Figure 5.4 . This figure
shows the main menu. See also chapter ’8 Main menu’ .
The navigation buttons are:
•
Buttons UP
H
and DOWN
L
;
• Enter:
E
;
• Reset button:
R
The arrows
^
and
È
indicate that you can scroll up and/or down. Use buttons
H
and
L
to scroll.
^»START OPERATION
È CHANGE SETPOINT
Tset=70ÉC
Figure 5.2 The display
Table 5.1 Icons and their meaning
Icon Name Explanation
W
Heat demand Heat demand detected
S
Purge Pre- and post-purge using fan
D
Pressure switch Pressure switch is closed
O
Glow (Pre)glow
G
Gas control Gas control open / ignition
V
Flame detection Water heater running
INTERNAL CHECK
Figure 5.3 Internal check