Carrier SPS - To Wire and Mount the Switch;Sensor

Enthalpy switch/receiver and Enthalpy sensor
Carrier Sensors 51
To wire and mount the switch/sensor
For Outdoor Enthalpy Control
1 To mount the enthalpy switch/receiver, insert 2 field-supplied 8 x 3/4-in. TEK screws through its side
holes.
2 Remove the 4 screws holding the cover on, then remove cover.
3 Set the M1 to M3 jumper to M2. Leave the other jumper on Off.
4 Replace the cover and the 4 screws.
5 Connect the GND and 24 Vac terminals on the enthalpy switch/receiver to the controller's power
terminals.
6 Connect the HI or LOW terminals on the enthalpy switch/receiver to the controller's J2-6 input.
33CSENTHSW
24 Vac
secondary
24 Vac output from n/c contact when the outdoor
enthalpy is less than the indoor enthalpy
(Enable economizer)
24 Vac output from n/o contact when the indoor
enthalpy is greater than the outdoor enthalp
y
(Enable energy recycler)
HI LOW GND 24
ENTHALPY VAC
4-20 24-36
mA VDC
IN OUT
120 Vac
line
v
oltage
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.