3.3.3 Control method
You can choose between the following con-
trol methods for all systems:
4
Supply air temperature control,
4
Exhaust air temperature control,
4
Exhaust air temperature cascade control,
4
Room temperature control or
4
Room temperature cascade control.
For systems Anl 6, 8 and 9 (air-conditioning
systems) the control method needs to be set
for the temperature control circuit as well as
for the humidity control circuit. For the humid-
ity circuit, you can choose between:
4
Supply air humidity control,
4
Exhaust air humidity control,
4
Exhaust air humidity cascade control,
4
Room humidity control or
4
Room humidity cascade control.
The difference between temperature and
humidity control circuits is shown on the dis-
play by blinking symbols. For the tempera-
ture control circuit, heating and cooling coil
blink on the display. For the humidity control
circuit, the cooling coil and humidifier blink
on the display. Additionally, for the humidity
control circuit, a difference is made between
humidifying and dehumidifying operation
and just humidifier operation.
You can set the control method in the configu-
ration level under the system code number
Anl. Refer to Changing the system code
number in section 3.3.2 on page 16.
3.3.4 Parameter levels (PA1 to PA9)
In the parameter levels PA1 to PA9, you can
change parameters which have been
enabled by the configuration. The parame-
ters are recognizable by a combination of
symbols that appear on the display. You will
find a summary in Appendix B.
If you want to change parameters, proceed as follows:
EB 5177 EN
19
Control levels
Operation
Press
Display shows
Comments
Refer to Appendix B for the parameter levels and the symbols assigned to
the parameter(s).
Press the changeover key to change
to parameter level PA1.
24
M
Y1
M
M
Y3
Y1 Y2 Y3
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
2
1
0
3
