88
Plug
lH
■
The function is selected via code 4b:1 in the
"Gen-
eral"/1
group.
■
The effect on the circulation pump for cylinder heat-
ing is selected with code 5F in the
"DHW"/3
group.
■
The effect on the relevant heating circuit pump is
selected with code "d7" in the
"Heating circuit"
group.
EA1 extension
The "External demand" function is implemented via the
EA1 extension. There are 3 inputs available at the EA1
extension (DE1 to DE3).
The function is selected via the following codes:
External demand
Code
Input DE1
3A:2
Input DE2
3b:2
Input DE3
3C:2
■
The effect on the circulation pump for cylinder heat-
ing is selected with code 5F in the
"DHW"/3
group.
■
The effect on the relevant heating circuit pump is
selected with code "d7" in the
"Heating circuit"
group.
■
The minimum set boiler water temperature for exter-
nal demand is selected in coding address "9b".
Screed drying
The screed drying function enables screeds to be
dried. For this, observe the screed manufacturer's
instructions.
When screed drying is enabled, the heating circuit
pump for the heating circuit with mixer starts and the
flow temperature is maintained in accordance with the
selected profile. On completion (30 days), the heating
circuit with mixer is regulated automatically according
to the set parameters.
Observe EN 1264. The report to be provided by the
heating contractor must contain the following details
regarding heat-up:
■
Heat-up data with the relevant flow temperatures
■
Max. flow temperature achieved
■
Operating state and outside temperature during
handover
The various temperature profiles are adjustable via
coding address "F1".
The function continues after a power failure or after the
control unit has been switched off. "Heating and DHW"
is started if screed drying is finished or if code "F1:0" is
set manually.
Temperature profile 1: (to EN 1264-4) code "F1:1"
t/d
ϑ/°C
1
5
10
15
20
25
30
10
20
30
40
50
Fig. 49
Temperature profile 2: (acc. to ZV parquet and flooring technology) code "F1:2"
t/d
ϑ/°C
1
5
10
15
20
25
30
10
20
30
40
50
Fig. 50
Function description
Control functions
(cont.)
5839829
Functions
