To Wire And Mount The Switch/Sensor - Carrier SPS Installation Manual

To wire and mount the switch/sensor

For Outdoor Enthalpy Control
To mount the enthalpy switch/receiver, insert 2 field-supplied 8 x 3/4-in. TEK screws through its side
1
holes.
Remove the 4 screws holding the cover on, then remove cover.
2
Set the M1 to M3 jumper to M2. Leave the other jumper on Off.
3
Replace the cover and the 4 screws.
4
Connect the GND and 24 Vac terminals on the enthalpy switch/receiver to the controller's power
5
terminals.
Connect the HI or LOW terminals on the enthalpy switch/receiver to the controller's J2-6 input.
6
HI LOW GND 24
ENTHALPY
For Differential Enthalpy Control
To mount the enthalpy sensor, insert 2 field-supplied 8 x 3/4-in. TEK screws through its side holes.
1
Repeat step 1 to mount the enthalpy switch/receiver.
2
On the switch/receiver, remove the 4 screws holding the cover on, then remove cover.
3
Carrier Sensors
120 Vac
line
voltage
24 Vac
secondary
4-20 24-36
mA VDC
VAC
IN OUT
33CSENTHSW
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 enthalpy
(Enable energy recycler)
Enthalpy switch/receiver and Enthalpy sensor
51