28
The control unit must be matched to the system equip-
ment level. Various system components are recog-
nised automatically by the control unit and the relevant
codes are set automatically.
■
For individual coding steps, see page 33.
Adjusting heating curves
Only for weather-compensated control units
The heating curves illustrate the relationship between
the outside temperature and the boiler water or flow
temperature.
To put it simply, the lower the outside temperature, the
higher the boiler water or flow temperature.
The boiler water or flow temperature in turn affects the
room temperature.
Settings in the delivered condition:
■
Slope = 1.4
■
Level = 0
Note
If the heating system includes heating circuits with mix-
ers, then the flow temperature of the heating circuit
without mixer is higher by a selected differential (8 K in
the delivered condition) than the flow temperature of
the heating circuits with mixers.
The differential temperature is adjustable via coding
address "9F" in the
"General"
group.
0.2
Outside temperature in °C
Boiler
water
or
flow temperature
in °C
Slope
2.4
2.6
2.8
3.0
3.2
3.4
90
80
70
60
50
40
30
0
-5 -10 -15 -20
5
10
2.0
2.2
Set room temperature
in °C
35
30
25
20
15
10
5
0.4
0.6
0.8
1.0
1.2
1.4
-30
-25
1.8
1.6
Fig. 21
Slope setting ranges:
■
Underfloor heating systems: 0.2 to 0.8
■
Low temperature heating systems: 0.8 to 1.6
Selecting the set room temperature
Individually adjustable for each heating circuit.
The heating curve is offset along the axis of the set
room temperature. With the heating circuit pump logic
function enabled, the curve modifies the starting and
stopping characteristics of the heating circuit pump.
Commissioning, inspection, maintenance
Matching the control unit to the heating system
5792 925 GB
Содержание Vitocrossal 100 CI1
Страница 119: ...119 Up to 80 kW Fig 67 Connection and wiring diagram Connection and wiring diagram cont 5792 925 GB Appendix ...
Страница 138: ...138 5792 925 GB ...
Страница 139: ...139 5792 925 GB ...
