©
HDG Bavaria GmbH 07/2008
HDG M299/300/350/400 - Version 1 - en
6 Using the heating system – ON/OFF menu
85
6.6 ON/OFF menu
P
ROCEDURE
1.
Press the
F1
key under the standard display screen.
✓
You are in the
ON/OFF
menu.
2.
Scroll with the
F1
or
F2
key to the previous or next submenu.
3.
Use the
F3
key under the
FIELD
command in the respective
submenu to select the desired parameter.
4.
Press the
F4
key under the
CHOOSE
command and select the
desired setting.
5.
Confirm each change with the
Enter
key.
✓
The desired parameter is set.
6.
Press the
F6
key under the
END
command to exit the submenu.
✓
The standard display is restored.
S
ETTING
THE
BASE
LOAD
/
PEAK
LOAD
BOILER
An additional peak load boiler can be integrated using a
third accumulator temperature sensor. With a double heating
system, both boilers store energy in the accumulator. If the base load
boiler cannot charge the accumulator by itself, the peak load boiler
switches on for support.
This menu allows you to configure which heating system will be the
base load boiler and the which will be the peak load boiler in a
double heating system. A changeover is required once a certain
number of operating hours is reached so that both boilers will be in
operation approximately the same number of hours over several
years.
✎
See “Procedure” in this section.
A
CTIVATING
B
OILER
-2
Boiler activation must be set to “
External
” on Boiler 2 with
parameter
1-05
. Boiler 2 is activated by a relay (K21) of Boiler 1. A
normally-open contact of K21 is wired to the outgoing terminals 68/
This is an optional submenu and only available with double heating
systems.
Changeover base load / peak load
1-09
Base load
Peak load
Boiler-1
Boiler-2
After operating hours
:
0 /
0 h
FIELD
CHOOSE
END
Содержание M299
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