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Installation
12 RTU Open
Wiring inputs and outputs
RTU Open Inputs and Outputs Table
Channel
Number
Type
Signal
Function
Part Number
Wire/Terminal
Numbers
Input 1
Alternate
Terminals
AI 4-20 mA CO2
OAQ
Space Relative Humidity
33ZCT55CO2
33ZCT56CO2
33ZCSENCO2 w/
33ZCASPCO2
33ZCSENSRH-01
J4
N/A
- 5 & 6
Input 2 AI 4-20 mA CO2
OAQ
Space Relative Humidity
33ZCT55CO2
33ZCT56CO2
33ZCSENCO2 w/
33ZCASPCO2
33ZCSENSRH-01
J4
N/A
-
2 & 3
Input 3 BI 24 Vac Compressor Safety **
Fan Status
Filter Status
Remote Occupancy
Door Contact
N/A
33CSAS-01
33CSFS=01
Field-supplied
Field-supplied
J1
-
2
J5
Input 4
- 5 & 6
***
BI 24 Vac Safety Chain
*
N/A
J1
N/A
- 9
Input 5 BI 24 Vac Fire Shutdown **
Fan Status
Filter Status
Remote Occupancy
Door Contact
Field-supplied
33CSAS-01
33CSFS-01
Field-supplied
Field-supplied
J1
- 10
J5
Input 6
- 3 & 4
***
AI
10K
Thermistor
Supply Air Temperature
33ZCSENSAT
33ZCSENDAT
J2
N/A
- 1 & 2
Input 7 AI
10K
Thermistor
Outside Air Temperature 33ZCSENOAT
J2
N/A
- 3 & 2
Input 8 BI 24 Vac Enthalpy **
Fan Status
Filter Status
Remote Occupancy
Door Contact
33SENTHSW
33CSAS-01
33CSFS-01
Field-supplied
Field-supplied
J2
- 6 & 7
J5
Input 9
- 1 & 2
***
BI 24 Vac Humidistat **
Fan Status
Filter Status
Remote Occupancy
Door Contact
TSTATCCPLH01-B
33CSAS-01
33CSFS-01
Field-supplied
Field-supplied
J5
N/A
- 7 & 8
Input 10 AI
10K
Thermistor
Space Temperature 33ZCT55SPT 33ZCT56SPT
33ZCT59SPT
J20
N/A
- 1 & 2
Input 11 AI
100K
Thermistor
Space Temperature
Setpoint Adjust
33ZCT56SPT 33ZCT59SPT
J20
N/A
- 3 & 4
Rnet AI
Zone Temperature SPS / SPPL / SPP
J13
N/A
- 1, 2, 3, 4
AO - 1
AO
Economizer
Economizer
Actuator-Field-supplied
J2
N/A
- 5 & 4
AO - 2
AO
N/A
Not used
N/A
J22
N/A
- 1 & 2
BO - 1 BO N/A - Relay Fan (G) N/A
J1
N/A
- 4
BO - 2 BO N/A - Relay Heat 2 (W2) Output N/A
J1
N/A
- 5
BO - 3 BO N/A - Relay Heat 1 (W1) Output N/A
J1
N/A
- 6
BO - 4 BO N/A - Relay Cool 2 (Y2) Output
N/A
J1
N/A
- 7
BO - 5 BO N/A - Relay Cool 1 (Y1) Output
N/A
J1
N/A
- 8
BO - 6 BO N/A - Relay Humidi-MiZer™
N/A
J11
N/A
- 7 & 8
BO - 7 BO N/A - Relay Reversing Valve
N/A
J11
N/A
- 4 & 6