Vector TRA-F22 A Series - Modulating Control for 4-Pipe Application Heating and Cooling Mode; On;Off Control for 4-Pipe Application Heating and Cooling Mode

TRA-F22x-A
CONFIGURATION
Doc: 70-00-0958A V1.0, 20221102 © Vector Controls GmbH, Switzerland Page 26-34
Subject to change without notice www.vectorcontrols.com
VECTOR
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:









 

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