Orion System CO2 Sensor v.1 - Manual (Page 5)

Technical Guide
CO
2
SENSOR
5
Figure 3: Duct Mounted CO
2
Sensor & Digital Room Sensor Wiring for VCM-X E-BUS Controller
Duct Mounted CO
2
Sensor Wiring to HVAC Unit Controller
Duct Mounted CO
2
Sensor
The OE256-02 is comprised of the OE256-01 CO
2
Sensor and the Watt-
Master Aspiration Box Assembly. See the dimensional and installation
information in Figures 3, below and 4 & 5, pages 6 & 7 for mounting,
wiring, and installation details.
The OE256-02 Duct Mounted CO
2
Sensor is used for sensing the current
CO
2
level in the HVAC unit’s return air stream. The return air sensing use
of this sensor is applied when you want an average CO
2
reading in the
area served by the HVAC unit or when you don’t want a wall mounted
CO
2
due to sensor tampering concerns in the space.
The OE256-02 Duct Mounted CO
2
Sensor is designed to be mounted
in the return air duct of the HVAC unit and uses its integral aspiration
box to sample the CO
2
level in the duct. Its address switch is factory set
to address “1” which is for space or return air sensing applications and
does not need to be changed for this application.
OE332-23E-VCMX
VCM-X E-BUS Controller
TSDRSC Cable
TSDRSC Cable
OE256-02 Duct Mounted
Sensor CO
2
OE217-00 or OE217-01
Wall Mounted
Digital Room Sensor
NOTE: If The Sensor Is Used With The Digital
Room Sensor, The CO Sensor Always Connects To
The VCM-X Or RNE Controller First Using A TSDRSC
Cable
CO
2
2
Of The Required Length. The Digital Room
Sensor Then Connects To The CO Sensor With
Another TSDRSC Cable. The Total Length Of Cable
For Either One Or Both Sensor Cables Combined
Cannot Exceed 160 Feet.
2
OE256-02 Duct Mounted
Sensor CO
2
GND
TMP
OVR
R E L O
C
R E M R
O
A W
AUX
Wire Required For
Sensors With Slide
Adjust Option Only
Set Jumper For
THERM When Space
Sensor Slide
Adjust Is Wired To AI7
AI1
AI7
GND
AI1
AI1 SET
AI2 SET
AI3 SET
AI4 SET
AI5 SET
AI7 SET
AI2
AI3
AI4
AI5
AI7
NOTE: A Space Temperature Sensor Can Be
Used Instead Of The Digital Room Sensor.
Either The Slide Offset Option For The Space
Temperature Sensor Or The Remote Supply Air
Temperature Reset Signal Option (By Others)
May Be Connected To An AI7 On The VCM-X
Or RNE Controller. Only One Option Is Allowed,
Not Both.
VCM-X E-BUS Controller
Space Temperature Sensor
hown
OE210, OE211, OE212, OE213
(OE213 S )
Display Override
OVERRIDE ALARM
RELAY CONTACT
RATING IS 1 AMP
MAX @ 24 VAC RS-485 COMMUNICATION LOOP. WIRE
“R” TO “R”, “T” TO “T” “SHLD” TO “SHLD”
FAN
RELAY 2
RELAY 3
RELAY 4
RELAY 5
RELAY
COMMON
IC DIGITAL
SENSOR
2 IC
EXPANSION
2 STATIC
PRESSURE
AI1 = SPC (SPACE TEMPERATURE SENSOR)
AI2
AI3
AI4
AI5
AI7
A01
A02
= SAT (SUPPLY AIR TEMPERATURE SENSOR)
= RAT (RETURN AIR TEMPERATURE SENSOR)
= OAT (OUTDOOR AIR TEMPERATURE SENSOR)
= SUCTION PRESSURE SENSOR
= SPACE TEMPERATURE SENSOR SLIDE ADJUST
OR VOLTAGE RESET SOURCE
= ECONOMIZER (2-10 VDC OUTPUT)
= SUPPLY FAN VFD (0-10 VDC OUTPUT)
ANALOG INPUT JUMPER SETTINGS
MUST BE SET AS SHOWN FOR
PROPER OPERATION 24 VAC POWER ONLY WARNING! POLARITY MUST BE OBSERVED
OR THE CONTROLLER WILL BE DAMAGED
www.orioncontrols.com
AI1
AI2
AI3
AI4
THERM
THERM
THERM
THERM
THERM
THERM
4-20mA
4-20mA
4-20mA
4-20mA
4-20mA
4-20mA
0-10V
0-10V
0-10V
0-10V
0-10V
0-10V
0-5V
0-5V
0-5V
0-5V
0-5V
0-5V
AI5
AI7
ANALOG INPUT
JUMPER
SETTINGS
WattMaster Label
#LB102033-01
OE332-23-VCMX-A VCM-X CONTROLLER
WA
RN
IN
G
OBSERVE POLARITY
RELAY CONTACT
RATING IS 1 AMP
MAX @ 24 VAC RS-485 COMMUNICATION LOOP. WIRE
“R” TO “R”, “T” TO “T” “SHLD” TO “SHLD”
FAN
RELAY 2
RELAY 3
RELAY 4
RELAY 5
RELAY
COMMON
IC DIGITAL
SENSOR
2 IC
EXPANSION
2 STATIC
PRESSURE
ANALOG INPUT JUMPER SETTINGS
MUST BE SET AS SHOWN FOR
PROPER OPERATION 24 VAC POWER ONLY WARNING! POLARITY MUST BE OBSERVED
OR THE CONTROLLER WILL BE DAMAGED
AI1
AI2
AI3
AI4
THERM
THERM
THERM
THERM
THERM
THERM
4-20mA
4-20mA
4-20mA
4-20mA
4-20mA
4-20mA
0-10V
0-10V
0-10V
0-10V
0-10V
0-10V
0-5V
0-5V
0-5V
0-5V
0-5V
0-5V
AI5
AI7
ANALOG INPUT
JUMPER
SETTINGS
WattMaster Label
#LB102073-01-A
Rev.: 1A
www.aaon.com
www.orioncontrols.com
VCM-X MODULAR E-BUS CONTROLLER
Orion No.:OE332-23E-VCMX-MOD-A
AAON No.:
V07150
AI1 = SPC (SPACE TEMPERATURE SENSOR)
AI2
AI3
AI4
AI5
AI7
A01
A02
= SAT (SUPPLY AIR TEMPERATURE SENSOR)
= RAT (RETURN AIR TEMPERATURE SENSOR)
= OAT (OUTDOOR AIR TEMPERATURE SENSOR)
= SUCTION PRESSURE SENSOR (FROM EXP. MODULE)
= SPACE TEMPERATURE SENSOR SLIDE ADJUST
OR VOLTAGE RESET SOURCE
= ECONOMIZER (2-10 VDC OUTPUT)
= SUPPLY FAN VFD (0-10 VDC OUTPUT)
LED BLINK CODES
LED NAME STATUS1 STATUS2
NORMAL OPERATION 0 1
SAT FAIL 1 2
OAT FAIL 2 2
SPC FAIL 3 2
MODULE ALARM 4 2
MECH COOL FAIL 1 3
MECH HEAT FAIL 2 3
FAN PROOF FAIL 3 3
DIRTY FILTER 4 3
EMERGENCY SHUTDOWN 5 3
LOW SAT 1 4
HIGH SAT 2 4
CONT. TEMP COOL FAIL 3 4
CONT. TEMP HEAT FAIL 4 4
PUSH BUTTON OVR 1 5
ZONE OVR 2 5
OUTPUT FORCE ACTIVE 0 6
E-BUS
CONNECTOR