Chore-Tronics 2 Control - Relative Humidity Sensor Wiring Guide

Control Installation Chore-Tronics® 2 Control
76
MT1843B
Relative Humidity Sensor(RH) Wiring
The optional Relative Humidity Sensor (Item 1, Figure 87) requires a three-
conductor wire to connect the sensor to the Chore-Tronics
®
2 I/O board. The Sensor
is connected to one of the Analog (AI) Inputs on the IO board.
Terminal #1 on the relative humidity sensor is connected to the +24 v terminal on the
IO board (see diagram). This is the same +24 v terminal used by the Static Pressure
Sensor. Terminal #2 on the Relative Humidity Sensor is connected to the Analog
Input (AI) terminal of the analog Input being used (See Figure 87). Terminal #3 is
connected to the ground terminal of the Analog Input (AI) being used. Make sure that
the Blue Jumper above the Analog Input that the RH sensor is connected to is set to
"U".
Note:
MT1842-094 11/04
U
R
U
R
U
R
AI5
AI6
AI7
AI8
24V
1
1
1
3
2
3
3
2
U
R
Item Description
1 Relative Humidity Sensor
2 I/O Board Analog Input (AI) Terminal of
your Choice
Figure 87. Relative Humidity Sensor Wiring
Blue Jumper in the
"U" position
2
1