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

Page: 58 / 98

Main menu
58 Instruction Manual DR-FC
8
gis
This means:
1.
B
: Activate the main menu with
B
.
2.
SETTINGS
: Using button
H
and/or
L
go to
SETTINGS
and press
E
.
3.
LANGUAGE
: Using button
H
and/or
L
go to
LANGUAGE.
4. Confirm with
E
: After pressing
E
, the sub-menu
LANGUAGE
is
activated.
This notation is also used for more than 2 sub-menus.
8.3 Switching into “ON
mode”
You can switch the water heater into “ON mode” from any operational mode, as
follows:
•
B
:
ON | START OPERATION
Confirm with
E
.
n
Remark
Starting up and shutting down the entire water heater is described in chapter
7 .
8.4 Setting the water
temperature
8.4.1 Setting the water temperature via SETPOINT MENU
The water temperature can be set to any value between 40°C and 80°C.
Set the water temperature via:
1.
B
:
ON | CHANGE SETPOINT
Confirm with
E
.
2. Use:
-
H
to increase the value;
-
L
to decrease the value.
- Confirm with
E
. After confirming, the water heater enters “ON
mode”.
n Remark
If the temperature setting is higher than the current water temperature, it is
possible that the water heater does
not immediately start heating. To
prevent excessively frequent switching on and off, there is a heating margin.
This margin is set standard to 2°C. The water heater starts heating when the
water temperature is 2°C colder than the SETPOINT and continues heating
until the water is 2°C hotter than the SETPOINT.
We refer to this margin as the hysteresis. The service and maintenance
engineer can adjust this value (see paragraph
9.2 ).
8.4.2 Setting water temperature during ON mode
The water temperature can also be directly adjusted when the water heater is
in “ON mode”. Simply use:
•
H
to increase the value;
•
L
to decrease the value.
• t6Confirm with
E.
START OPERATION
^»CHANGE SETPOINT
È Tset=65ÉC
Figure 8.2 Setting SETPOINT
SETPOINT
» 65ÉC
Figure 8.3 Adjusting water
temperature
ON
13:45 Thursday 65ÉC
Tset=65ÉC
Figure 8.4 ON mode: the water
heater is on