9
Operating manual atmoCRAFT
Caution!
Risk of damage!
The frost protection and monitoring systems
are only active when the main switch of the
appliance is in the "I" position and it is not
disconnected from the mains power supply.
To ensure that these protection devices remain active,
switch your boiler on and off using the controller (see
the corresponding operating manual).
Section 4.9 describes how to take your gas boiler out
of commission.
4.4
Settings for hot water preparation
2
3
Fig. 4.6 Adjusting the storage tank temperature (only if a hot
water storage tank is included)
For hot water preparation using an atmoCRAFT boiler, a
hot water tank must be connected to the boiler.
Proceed as follows to adjust it:
• Turn the rotary knob (
3
) to the desired temperature. In
doing this:
Turning all the way to the left, frost protection 15 °C
Minimum set water temperature
40 °C
Turning all the way to the right
Maximum set water temperature
70 °C.
When setting the desired temperature, the value is
shown on the display (
2
) of the DIA-System.
After approx. five seconds the display returns to
standard mode (the current heating feed temperature).
Note!
We recommend a setting of 60 °C for economic
and hygienic reasons (e.g. Legionella).
Caution!
Danger of calcium deposit build-up.
If your water hardness is more than 1.79 mol/m
3
(10 °dh), do not turn the knob (3) further than
the middle position.
4.4.1 Drawing hot water
• Open one of the hot water taps at one of the water
draw-off positions (hand-wash basin, shower, bath
etc.). The hot water is drawn off from the integrated
hot water storage tank.
If the water in the tank falls below the set temperature,
the appliance starts up automatically and reheats it.
During the charging process of the storage tank the
read-out in the display (
2
) flashes
, see Figure 4.6.
When the storage tank temperature that you have set is
achieved, the unit switches off automatically. The pump
continues to run for a short while.
4.4.2 Switching off the storage tank operation mode
On the atmoCRAFT boilers with connected hot water
storage tanks you can switch the storage tank charging
system off, whilst continuing to operate the heating
system.
• To do this, turn the rotary knob (
3
) for setting the hot
water temperature all the way to the left, see Figure
4.6. The frost protection function for the storage tank
remains active.
A storage tank temperature of 15 °C is shown in the
display (
2
), for approx. 5 seconds.
Operation 4
GB
