28
4.5 Settings Checklist
Default factory setting
Alternative possibilities
H
If boiler (shunt) pump
is utilized:
The boiler (shunt) pump switches on when the boiler water tem-
perature falls below the minimum value
20 B
j
The boiler (shunt) pump switches on when the boiler is released
Boiler isolation valve
H
Off delay for boiler (shunt) pump and for boiler isolation valve:
10 minutes
45
j
Off delay for boiler (shunt) pump and for boiler isolation valve:
......... minutes
Weather-dependent blocking
H
Weather-dependent blocking of lag boilers is not
activated
j
Weather-dependent blocking is activated when the actual and
the damped outdoor temperature is at least 2
ºF
/ 1
º
C higher
than the entered value ........
ºF
/ ........
º
C
H
Automatic boiler sequence control
(only when lead boiler
selector switch
“FK/WA”
is in setting “ ”)
Automatic change of boiler sequence takes
place after 1000 hours run of the first stage burner or of the
basic load stage of the first boiler
j
Automatic change of on/off sequence of the boilers takes
place after ........ hours run
Domestic hot water heating
H
Without DHW priority control:
The system pump pump
remains activated during
DHW production
H
Adjustment range of DHW tank temperature is
50 to 140
ºF
/ 10 to 60
º
C
H
A call for heat for DHW production causes activation of the
DHW pump only after the boiler water temperature is approx.
13
ºF
/ 7
º
C above the DHW tank setpoint temperature.
H
After DHW production is complete, the DHW pump continues to
operate, until
- the temperature differential between the boiler and DHW tank
water is less than 13
ºF
/ 7
º
C or
- The DHW tank setpoint temperature is exceeded by
13
ºF
/ 7
º
C or
- the calculated boiler water temperature (required by outdoor
control) is reached.
The time delay for deactivation occurs for a maximum of 12
minutes.
H
The boiler water temperature is approx. 36
ºF
/ 20
º
C higher
than the DHW setpoint temperature during DHW production
H
“Supplementary DHW production function” is not activated.
H
If supplementary DHW production function is activated:
DHW is briefly heated to a temperature of 140
ºF
/ 60
º
C
133
j
With DHW priority over the circuit pump(s):
The system pump
is switched off during
DHW production;
it is not switched on again until the DHW pump
for DHW tank
is switched off (see also
the following changes)
j
Adjustment range of DHW tank temperature is
50 to 176
ºF
/ 10 to 80
º
C
j
A call for heat for DHW production causes immediate activation
of the DHW pump
j
After DHW production is complete (DHW tank setpoint tempera-
ture is reached), the DHW pump deactivates immediately
j
Boiler water temperature is restricted to the adjustable high limit
setting ”
” during DHW production.
j
“Supplementary DHW production function”
≙
brief heating of
DHW tank
........ times per day/once every ........ days
j
This temperature is set to ........
ºF
/ ........
º
C
133
21
H
Without remote operating program switching
(via telephone)
j
With remote operating program switching (telephone contact)
H
Without remote operating program switching via
Dekatel-F
j
With remote operating program switching via Dekatel-F