Page 5 of 18 APHITEMPCON001-11-04
Heat / Cool Changeover of Output1
Output1 is suitable for Heat/Cool changeover (manually) control in 2pipeAHU, Zoning control or
HydronicHeating application.Wiring connection is shown in fig.
With cooling or heating selected, the user set point (SP) will be positioned at themiddle of
proportional band. The output percentage is proportional to the temperaturemeasuredand
decided by proportional band. Theproportional band canbe set from2.0°C to 19.0°C. The
control logic is seen inDiagram1.
Diagram1:
WiringDiagram
A/O D/I
Pt1000
sensor
1 2 3 4 5 6 7
PT1000
REMOTESENSOR
2-10VDC /
4-20mA
Actuator
Unit
POWER
SUPPLY
110VAC /
230VAC
L
N
E
0VAC
0VAC
24VAC
24VAC
4 - 20mA
2 - 10VDC
8
Note: If Emergency IP [D/I] not used then
Add linkbetween terminal No 5& 3.
Proportional band
Cooling
Heating
50%
ValveOpen
100%
Temperature Increase
ValveClose
0%
sp
