TRA-F22x-A
C
ONFIGURATION
Doc: 70-00-0958A V1.0, 20221102
© Vector Controls GmbH, Switzerland
Page 26-34
Subject to change without notice
www.vectorcontrols.com
V
ECTOR
5.8.8
On/Off control for 4-pipe application heating and cooling mode
Parameters
Parameter Description
Valid values for given chart
P200
Application mode
6 (= 4-pipe heating and cooling)
P201
Enable electric heater
0
P203
Valve Type
0 (= on/off valve)
P207
Number of fan speeds
4 (= analog fan)
Note that following condition must be met:
1
2
𝑋
𝐻
+
1
2
𝑋
𝐶
< 2 ∗ 𝑋
𝐷𝑍
5.8.9
Modulating control for 4-pipe application heating and cooling mode
Parameters
Parameter Description
Valid values for given chart
P200
Application mode
6 (= 4-pipe heating and cooling)
P201
Enable electric heater
0
P203
Valve Type
2/3 (= modulating valve)
P207
Number of fan speeds
3 (= 3-stage fan)
Note: X
DZ
can be chosen smaller than for on/off valve, as the modulating control is more accurate.
ON
OFF
T [°C]
X
DZ
X
DZ
X
H
W
Legend
W
Set point
X
H
Switching span heating
X
C
Switching span cooling
X
DZ
Dead zone half between set point
and valve switch off
X
C
DO1/DO2
100%
0%
T [°C]
X
H
W
Legend
W
Set point
X
H
Proportional band heating
X
C
Proportional band cooling
X
DZ
Dead zone half span
X
C
Control output
X
DZ
X
DZ
