Co2 Sensor - Carrier 39CQ Series Installation, Operation And Maintenance Instructions

1. Disassemble base plate by loosening mounting screw
2. Install the base plate on the indoor wall
3. Wiring in accordance with wiring diagram
4. fasten wiring connection tightly in order not to have virtual wiring
5. Fix the cover of transmitter to base plate
6. Assemble the cover
7. Use screw driver#2 to fix the screw
Wiring diagram
1: G power supply, 0VAC, +24VDC
2: G0 power supply, 24VAC, -24VDC
3: U1 JP1 = 1-2, humifity voltage output, 0...10V or 2...10V (JP3)
3: I1 JP1 = 2-3, humifity voltage output, 0...20mA or 4...20mA (JP3)
4: B1 Resistance temperature signal
5: M1 Resistance temperature signal
Output signal setting
By use of short cuts, output signal can change in the range of 0...10V, 0...20mA or 2...10V, 4...20mA.
0-10 V is defined as factory settings, and please change to 4...20mA before usage. Please refer to Chapter
"Duct temperature and humidity sensor SDB-TN10-20" for detailed short cuts position.
(3) CO sensor EE85-2C65
2
Main features
CO concentration measurement in air duct
2
Easy to install and automatical calibration
Analog signal output 4~20mA
9