Enthalpy switch/receiver and Enthalpy sensor
Carrier Sensors CARRIER CORPORATION ©2021
Installation Guide All rights reserved
66
For Differential Enthalpy Control
1 To mount the enthalpy sensor, insert 2 field-supplied 8 x 3/4-in. TEK screws through its side holes.
2 Repeat step 1 to mount the enthalpy switch/receiver.
3 On the switch/receiver, remove the 4 screws holding the cover on, then remove cover.
4 Set the M1 to M3 jumper to M2. Leave the other jumper on Off.
NOTE The enthalpy sensor's jumpers should be left at their factory settings of M3 and Off.
5 Replace the switch/receiver's cover and the 4 screws.
6 Wire the sensor to the switch/receiver. See figure below.
7 Connect the GND and 24 Vac terminals on the enthalpy switch/receiver to the controller's power terminals.
8 Connect the HI or LOW terminals on the enthalpy switch/receiver to the controller's J2-6 input.
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