Trane Varitrac Dampers Brochure VAV SLB008 EN.p65

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CO2 Duct Sensor
and CO2 Wall Sensor
Figure 1: CO2 Duct Sensor

The wall and duct-mounted carbon
dioxide (CO2) sensors are designed
especially for demand-controlled
ventilation zone applications. The sensor
is compatible withTrane VAV and
VariTrac® controllers. Long-term stability
and reliable sensing performance come
from advanced silicon based NonDispersive Infrared (NDIR) technology.
When connected to a building
automation system and the appropriate
ventilation equipment, the Trane CO2
sensors measure and record carbon
dioxide in parts-per-million (ppm) in
occupied building spaces.These carbon
dioxide measurements are typically
used to identify under-ventilated
building zones and to override outdoor
airflow beyond design ventilation rates
if the CO2 exceeds acceptable levels.
Please visit trane.com or contact a local
Trane representative for more
information.

Figure 2: CO2 Wall Sensor

Table 1: Sensor Specifications
Duct
Measuring Range
Accuracy at 77°F (25°C)

Response time
Operating Temperature
Storage Temperature

— Wall- or Duct-mounted

< ± (40 ppm CO2
+ 3% of reading)

< ± (30 ppm CO2
+ 3% of reading)

Recommended calibration interval

5 years
1 minute (0-63%)
23 to 113°F
(-5 to 45°C)

59 to 95°F
(15 to 35°C)

-4 to 158°F (-20 to 70°C)

Humidity Range

0–85% relative humidity (RH)

Output Signal (jumper selectable)

4-20 mA, 0–20 mA, 0–10 VDC

Resolution of analog outputs
Power Supply
Power Consumption
Housing Material
Dimensions

Features

Wall

0–2000 parts per million (ppm)

10 ppm CO2
Nominal 24 VAC
< 5 VA
ABS plastic
3 1/8" x 3 1/8" x 7 3/4" 4 1/4" x 3 1/8" x 1 7/16"
(80 mm x 80 mm x (108 mm x 80 mm x
200 mm)
36 mm)

— Measures CO2 in ppm.
— NDIR SensingTechnology
— Demand-Controlled Ventilation

©2002 American Standard, Inc. All rights reserved

VAV-SLB008-EN

Figure 3: Dimensional Data

36 mm
(1.4375")

108 mm
(4.25")

80 mm
(3.125")

Specifications:
Measuring range: 0–2000 parts per million (ppm) CO2
Accuracy at 25˚C: <± (40 ppm CO2 + 3% of reading)
(includes repeatability and calibration uncertainty)
Non-linearity: < 1% full scale (FS)
Temperature dependence of output: 0.3% FS/degrees C
Long-term stability: <5.0" FS/5 years
Recommended calibration interval: 5 years
Response time: 1 minute (0–63%)
Operating temperature: From 59 to 95˚F (15 to 35˚C)
Storage temperature: From -4 to 158˚F (-20 to 70˚C)
Humidity range: 0–85% relative humidity (FH)
Output signals (jumper selectable): 4–20 mS, 0–20 mA, 0–10 Vdc
Resolution of analog outputs: 10 ppm CO2
Recommended external load: Current output: max. 500 ohms
Voltage output: min. 1000 ohms
Power supply: Nominal 24 Vac
Power consumption: <5 VA
Warm-up time: < 15 minutes
Housing material: ABS plastic
Mounting holes: For standard Asian, European, and North American junction boxes

Trane
An American Standard Company
www.trane.com
For more information contact
your local district office or
e-mail us at comfort @trane.com
©2002 American Standard, Inc. All rights reserved

Literature Order Number

VAV-SLB008-EN

File Number

SB-TD-VAV-000-SLB008-EN-0602

Supersedes

New

Stocking Location

La Crosse

Trane has a policy of continuous product and product data improvement and reserves the right to change design
and specifications without notice.



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