Orion CO2 Sensor User Manual

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Sensor

Technical Guide

TABLE OF CONTENTS

SENSOR OVERVIEW ......................................................................................................................................... 3

Features .......................................................................................................................................................................................3

Environmental Requirements .......................................................................................................................................................3

WALL MOUNTED SPACE CO

SENSOR WIRING TO HVAC UNIT CONTROLLER .............................................. 4

DUCT MOUNTED CO2 SENSOR MOUNTING & WIRING TO HVAC UNIT CONTROLLER .................................. 5

DUCT MOUNTED CO2 SENSOR INSTALLATION ............................................................................................... 6

TROUBLESHOOTING ........................................................................................................................................ 8

Setting The Sensor Address Switch .............................................................................................................................................8

Using LEDs to Troubleshoot ........................................................................................................................................................8

Altitude Correction ........................................................................................................................................................................8

TB1 Terminal Block (CO2 Reading) ..............................................................................................................................................9

APPENDIX ...................................................................................................................................................... 10

Mounting Plate Dimensions........................................................................................................................................................10

PART NUMBER TABLE

PART DESCRIPTION ORION

Wall Mounted Space CO2 Sensor OE256-01 Duct Mounted CO2 Sensor (RA or SA) OE256-02 Digital Room Sensor Temp Only OE217-00 Digital Room Sensor Temp & Humidity OE217-01 Mounting Plate BK000081 VCM-X E-BUS Controller OE332-23E-VCMX

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WattMaster Controls Inc. 8500 NW River Park Drive · Parkville, MO 64152 Toll Free Phone: 866-918-1100 PH: (816) 505-1100 · FAX: (816) 505-1101 E-mail: mail@wattmaster.com Visit our web site at www.orioncontrols.com

Form: OR-CO2-TGD-01E Copyright December 2014 WattMaster Controls, Inc. AAON® is a registered trademark of AAON, Inc., Tulsa, OK. WattMaster Controls, Inc. assumes no responsibility for errors or omissions. This document is subject to change without notice.

Sensor Overview

SENSOR

Overview

The Wall Mounted Space CO2 Sensor (OE256-01) is used for monitoring room CO the conditioned space. It connects to the VCM-X E-BUS Controller

(OE332-23E-VCMX) or RNE Controller (OE332-23E-RNE) by using TSDRSC modular prefabricated cable with RJ-45 connectors. It can be daisy-chained with the Digital Room Sensor (OE217-00 or OE217-01) or wired separately from the Orion Space T emperature Sensor (OE210, OE211, OE212, or OE213) for applications requiring both a room CO sensor and room temperature sensor. See Figure 1 for dimensions.

The OE256-02 Duct Mounted CO2 Sensor is comprised of the OE256-01

CO2 Sensor and the W attMaster Aspiration Box Assembly . It is used for sensing the current CO2 level in the HVAC unit’ s return air stream. It is designed to be mounted in the return air of the HVAC unit and uses its integral aspiration box to sample the CO2 level in the duct.

Some typical applications are:

levels and is designed for permanent wall mounting in

 Controlling ventilation in a building where the occupancy

varies frequently

 Controlling ventilation to ensure excess outdoor air is not

causing energy waste

 Ensuring good air distribution throughout building zones  Demand Control Ventilation

Environmental Requirements

The CO2 Sensor needs to be installed in an environment that can maintain a temperature range between 14°F and 122°F and a humidity range between 5% and 95% RH (non-condensing).

Features

The CO2 Sensor provides the following:

 Uses the patented dual beam Non-Dispersive Infrared

(NDIR) technology

 A very accurate and stable sensor guaranteed to maintain

its accuracy due to infrared self-calibration feature of sensor

 Sensor accuracy of +/- 50 ppm @ 1000 ppm or 2% of the

measured value

 Annual drift of +/- 2 ppm per year  Measurement range of 0 to 2000 ppm  LED under front cover shows active CO

sensing

 Addressable based on function within the system

™

Figure 1: Wall Mounted CO2 Sensor Dimensions

Technical Guide

CO2 SENSOR

Wall Mounted Space CO2 Sensor Wiring to HVAC Unit Controller

Wall Mounting

The OE256-01 Wall Mounted Space CO2 Sensor utilizes a sub-base mounting plate with a modular phone jack providing quick and easy mounting and wiring. The wall-mounted sensor’s sub-base is compatible with standard junction boxes. A locking screw secures the assembly to the wall.

Optional Mounting Plate

Included with the Digital Room Sensor is a mounting plate that can be used, if necessary, to cover the sensor sheet rock opening. This mounting plate screws onto the back of the housing base. The mounting plate is then mounted and covers the recessed space in the wall. A locking screw secures the sensor to the wall. See Figure 8, page 10 for dimensions.

VCM-X E-BUS Controller

Space Temperature Sensor

OE210, OE211, OE212, OE213

(OE213 S )

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.

hown

TMP

A R M

GND

E R C O O

OVR

L E R

AUX

Wire Required For Sensors With Slide Adjust Option Only

AI1

AI7

GND

AI1 SET AI2 SET AI3 SET

AI1

AI2

AI3

AI4

AI5

AI4 SET AI5 SET AI7 SET

AI7

Set Jumper For

THERM When Space

Sensor Slide

Adjust Is Wired To AI7

OE256-01

Wall Mounted Space

CO Sensor

TSDRSC Cable

Wiring to the HVAC Unit Controller

The OE256-01 W all Mounted Space CO2 Sensor connects to the VCM-X E-BUS or RNE Controller with the TSDRSC modular cable. It can be daisy-chained

or used separately from a Space Temperature Sensor (OE210, OE211, OE212, or OE213) for applications requiring both a room CO2 sensor and room temperature sensor. Refer to Figure 2 for instructions (VCM-X

E-BUS Controller shown).

with the Digital Room Sensor (OE217-00 or OE217-01)

OE332-23E-VCMX

VCM-X E-BUS Controller

RS-485 COMMUNICATION LOOP. WIRE “R” TO“R”, “T” TO “T” “SHLD” TO “SHLD”

RS-485 COMMUNICATION LOOP. WIRE “R”TO “R”, “T” TO “T” “SHLD” TO “SHLD”

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VCM-X MODULAR E-BUS CONTROLLER

Orion No.:OE332-23E-VCMX-MOD-A

OE332-23-VCMX-AVCM-X CONTROLLER

AI1 = SPC (SPACETEMPERATURE SENSOR)

AI2

= SAT(SUPPLY AIR TEMPERATURE SENSOR)

AI2

= SAT(SUPPLY AIR TEMPERATURE SENSOR)

AI3

= RAT(RETURN AIR TEMPERATURE SENSOR)

AI3

= RAT(RETURN AIR TEMPERATURE SENSOR)

AI4

= OAT(OUTDOOR AIR TEMPERATURE SENSOR)

AI4

= OAT(OUTDOOR AIR TEMPERATURE SENSOR)

AI5

= SUCTION PRESSURE SENSOR (FROM EXP. MODULE)

AI5

= SUCTION PRESSURE SENSOR

AI7

= SPACETEMPERATURE SENSOR SLIDE ADJUST

AI7

= SPACETEMPERATURE SENSOR SLIDE ADJUST

OR VOLTAGE RESETSOURCE

A01

= ECONOMIZER (2-10 VDC OUTPUT)

A01

= ECONOMIZER (2-10 VDC OUTPUT)

= SUPPLYFAN VFD (0-10 VDC OUTPUT)

A02

= SUPPLYFAN VFD (0-10 VDC OUTPUT)

E-BUS

CONNECTOR

ANALOG INPUT

JUMPER

SETTINGS

THERM

LED NAME STATUS1 STATUS2

THERM

4-20mA

AI1

0-10V

NORMALOPERATION 0 1

0-10V

0-5V

SATFAIL 1 2

THERM

OATFAIL 2 2

4-20mA

AI2

SPCFAIL 3 2

0-10V

0-5V

MODULEALARM 4 2

THERM

MECHCOOL FAIL 1 3

4-20mA

AI3

MECHHEAT FAIL 2 3

0-10V

0-5V

FANPROOF FAIL 3 3

THERM

DIRTYFILTER 4 3

4-20mA

AI4

EMERGENCYSHUTDOWN 5 3

AI4

0-10V

0-5V

LOWSAT 1 4

THERM

HIGHSAT 2 4

4-20mA

AI5

CONT.TEMP COOL FAIL 3 4

0-10V

0-5V

CONT.TEMP HEAT FAIL 4 4

0-5V

THERM

PUSHBUTTON OVR 1 5

THERM

4-20mA

AI7

ZONEOVR 2 5

AI7

0-10V

OUTPUTFORCE ACTIVE 0 6

0-5V

ANALOG INPUTJUMPER SETTINGS

MUSTBE SET AS SHOWN FOR

PROPER OPERATION

STATIC

WattMaster Label

STATIC

#LB102073-01-A

PRESSURE

#LB102033-01

PRESSURE

Rev.: 1A

RELAYCONTACT RATING IS 1AMP

RELAYCONTACT

MAX @ 24 VAC

RATING IS 1AMP MAX @ 24 VAC

RELAY COMMON

RELAY2

RELAY3

RELAY4

RELAY5

LED BLINKCODES

24 VAC POWER ONLY

WARNING!POLARITY MUST BE OBSERVED

OR THE CONTROLLER WILLBE DAMAGED

EXPANSION

RELAY COMMON

FAN

RELAY2

RELAY3

RELAY4

RELAY5

AAON No.:

IC DIGITAL

FAN

V07150

IC DIGITAL

SENSOR

POLARITY

OBSERVE

WARNING

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 Of The Required Length. The Digital Room Sensor Then Connects To The CO Sensor With Another TSDRSC Cable. Total Length Of Cable For Either One Or Both Sensor Cables Combined Cannot Exceed 160 Feet.

OVERRIDE ALARM

Display

Override

The

TSDRSC Cable

OE217-00 or OE217-01

Digital Room Sensor

Figure 2: Wall Mounted Space CO2 Sensor & Digital Room Sensor Wiring for VCM-X E-BUS Controller

Technical Guide

+ 8 hidden pages