Heat / Cool Changeover of Output1
Output1 is suitable for Heat/Cool changeover (manually) control in 2pipe AHU, Zoning control or
Hydronic Heating application. Wiring connection is shown in fig.
With cooling or heating selected, the user set point (SP) will be positioned at the middle of
proportional band. The output percentage is proportional to the temperature measured and
decided by proportional band. The proportional band can be set from 2.0° C to 19.0° C. The
control logic is seen in Diagram 1.
4 - 20 mA
2 - 10 VDC
Page 5 of 18
Note: If Emergency IP [D/I] not used then
Add link between terminal No 5 & 3.