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Telaire Ventostat

®

 8000 Series CO

Sensors

User Instructions

GE

Sensing

T62659-007

October 2006

Page 1 of 7

Introduction

The 

GE Telaire Ventostat

®

 8001/

8002

 carbon dioxide (

CO

2

) sensors and 

controllers are designed for 

Demand 

Controlled Ventilation

 

(DCV)

 in 

buildings. This approach, using 

CO

2

 as 

an indicator of occupancy, allows 
ventilation based on actual occupancy 
while still maintaining 

ASHARE

 

recommended per-person ventilation 
rates. Over ventilation of buildings can 
be reduced, energy can be saved, and 

quality can be optimized.

The optional black case (PN 8001B and 

PN 8002B) is 

UL94-V5

 rated, making 

these models suitable for mounting 
directly inside the ductwork. Typical 
applications for 

Ventostat

®

 8001/8002

 series include office buildings, 

conference rooms, schools, retail stores, restaurants, gymnasiums, and 
movie theatres.

Installing the Sensor

NOTICE!

Use of cellular telephones or radio transceivers within two (2) feet of the 

sensor during calibration process could cause sensor interference, 

calibration errors and affect sensor accuracy. Please refrain from using 

these devices during sensor calibration.

Install the mounting plate and sensor as follows:

1.

Prepare for installation by using the mounting holes configured for 
US or European junction boxes.

2.

Use the mounting plate as a template to mark the mounting holes. 
See Figure 1, View A below.

Figure 1:  Ventostat

®

 CO

2

 Controller - Mounting

3.

Secure the mounting plate to the wall or junction box and make 

necessary wire connections.

4.

Mount the controller on the base by aligning the top clips and then 
securing to the bottom clips, as shown in Figure 1, View B above. A 
“snap” sound will indicate that the sensor is secure. The sensor will 

now have power. A 2 minute warm-up will take place. After 2 
minutes, the sensor will stabilize and display the “

Normal Mode

” 

(current 

CO

2

 

readings).

5.

At this point one of nine preset programs or one custom channel can 
be selected for operation. See the section  “Configuring the Sensor” 
on page 3.

6.

Finish installation by sliding the cover over the menu keys and 

secure with the supplied screw.

Mounting the Sensor into the Duct

The 8001B and 8002B have the 

UL94-V5

 rated black case and are 

specifically designed for mounting inside the return air ductwork. When 

mounting these products inside the ductwork, seal the hole around the 
wires and leave the duct insulation in place to prevent condensation 
which may damage the sensor.

Pitot Tube Installation for the

8001 and 8002

Install the mounting bracket, then install the pitot tube assembly as 

follows:

Note:

The length of the Tygon

®

tubing is three feet. In order to 

maintain optimum accuracy, the tubing should not be 
lengthened. If the sensor is mounted closer than three 

feet, the excess tubing should be shortened to avoid 

interference with mechanical or moving devices.

1.

To mount the pitot tube, drill one 7/8” hole through the duct as 
shown in Figure 2 below.

Figure 2:  Pitot Tube - Installation

View A                             View B                             View C

Mounting

   Plate

Ventostat

CO

2

 Sensor/

Controller

clear

mode

enter

Top Clips

Bottom Clips

H

FLOW

L

Fi

lter m

us

t

b

e

attac

h

ed to t

h

e

“H” si

de o

f

t

h

e

pi

tot t

ub

e

View in Direction of A

Drill One Hole

7/8” in Diameter

Drill Two Machine

Screw Holes

Mounting

Flange

Summary of Contents for Telaire Ventostat 8001

Page 1: ...controller on the base by aligning the top clips and then securing to the bottom clips as shown in Figure 1 View B above A snap sound will indicate that the sensor is secure The sensor will now have power A 2 minute warm up will take place After 2 minutes the sensor will stabilize and display the Normal Mode current CO2 readings 5 At this point one of nine preset programs or one custom channel can...

Page 2: ...ure is weatherproof for measuring outside air CO2 con centrations It also includes heat stabilizers Model 1505 Harsh Environment Enclosure For extreme envi ronments where the sensor might be subjected to condensation or water spray such as those found in greenhouses or breweries NEMA 3R rated Figure 3 Accessory Enclosures Typical Wiring Diagrams The typical wiring diagrams appear in Figure 4 throu...

Page 3: ...ntrations drop to outside levels while the building is unoccupied Generally a building must be regularly unoccupied for 4 hours or more for this self calibration system to operate properly Under these conditions the ABC Logic feature should maintain sensor calibration over the lifetime of the sensor The ABC Logic feature should be turned OFF where a building is continuously occupied 24 hours per d...

Page 4: ...o initially introduce more ventilation to the space as concentrations are at the lower level of the control range The exponential output is particu larly useful for areas of potential high occupancy and high air volume where significant time may be required for CO2 levels to build up Potential applications include arenas gyms auditoriums and large con ference areas Examples of both types of output...

Page 5: ... Settings The non standard custom settings can be changed at any time after the sensor is powered up The seven settings variables are PPM Range Scale proportional or exponential Output V or mA Output Range V Output Range mA Relay Setpoint Relay Hysteresis The Altitude and ABC Logic features can be changed without entering into the Non Standard NONSTD menu 1 After 2 minute warmup period press CLEAR...

Page 6: ...ying the sensor operation using the UIP 8000 computer interface or checking the output signal on the building automation system 4 If there is no output signal call GE Telaire or your distributor dealer for a return authorization number Suspect the sensor is out of calibration 1 Compare the sensor reading to a GE Telaire 7001 hand held CO2 monitor 2 Take another sensor from the building and replace...

Page 7: ...lly Closed wire either way gold bifurcated 2A max 24VAC Adjustable setpoint factory set at 1000 ppm 50 ppm hysteresis Wiring 18 28 AWG stranded copper wire only 2 wires each for power analog output relay Digital I O RS 232 interface for use with optional PC software and cable in UIP kit 2072 Warranty Repairs GE Sensing will repair Telaire product that fails to meet the terms provided for in the Re...

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