Submittal Sheet

6
5.551
(141)
CO
2
Sensor BAC-13xxxx BAC-14xxxx
Applications For zones with occupied/unoccupied times* For zones with continuous occupancy*
Method Non Dispersive Infrared (NDIR), with ABC Logic* Non Dispersive Infrared (NDIR), dual channel*
Calibration Self-calibrates over several weeks* Self-calibrates approximately once every 24 hours*
Typical Life of Sensor 15 years 10 years
Measurement Range 400 to 2000 ppm 0 to 2000 ppm
Accuracy (at nominal
operating temperature)
±35 ppm @ 500 ppm, ±60 ppm @ 800 ppm,
±75 ppm @ 1000 ppm, ±90 ppm @ 1200 ppm
±75 ppm or 10% of reading (whichever is greater)
Altitude Correction Configurable from 0 to 32,000 feet
Pressure Dependence 0.135 of reading per mm Hg
Temperature Dependence 0.2% FS (full scale) per °C
Stability < 2% of FS over life of sensor < 5% of FS or < 10% reading annual over life of sensor
Response Time < 2 minutes for 90% step change typical
Warm Up Time < 2 minutes (operational) and 10 minutes (maximum accuracy)
*The BAC-13xxxx series has been certified to comply with CA Title 24, Section 121(c), as well as sub-paragraph 4.F. See explanations below.
Specifications, CO2 Models Only
Dimensions 5.551 x 5.192 x 1.437 inches
(141 x 132 x 36.5 mm)
Weight 0.5 lbs. (0.28 kg)
Environmental Limits
Operating 34 to 122° F (1.1 to 50° C)
Approvals FCC Class A, Part 15, Subpart
B and complies with Canadian
ICES-003 Class A
NOTE: See the previous page for specications in
common with other models.
NOTE: The CO
2
models are not approved for
residential applications.
Dimensions in
Inches (mm)
5.192 (132)
1.437
(36.5)
The BAC-13xxxx series uses Automatic Background
Calibration Logic, or ABC Logic, a patented self-
calibration technique designed to be used in appli-
cations where concentrations will drop to outside
ambient conditions (approximately 400 ppm) at
least three times in a 14 day period, typically dur-
ing unoccupied periods. With ABC Logic enabled,
the sensor will typically reach its operational accu-
racy after 25 hours of continuous operation if it was
exposed to ambient reference levels of air at 400 ±10
ppm CO
2
. The sensor will maintain accuracy speci-
cations with ABC Logic enabled, given that it is at
least four times in 21 days exposed to the reference
value and this reference value is the lowest concen-
tration to which the sensor is exposed. ABC Logic
requires continuous operation of the sensor for peri-
ods of at least 24 hours.
NOTE: The BAC-13xxxx series, with ABC Logic, has
been certied to comply with CA Title 24,
Section 121(c), as well as sub-paragraph 4.F
that species accuracy will be maintained
within tolerance for a minimum of 5 years
without recalibration and that a detected
sensor failure will cause the controller to
take appropriate corrective action.
The BAC-14xxxx series, for zones with continuous
occupancy, has a dual channel sensor. A CO
2
chan-
nel measures gas concentration, and a reference
channel measures the sensor signal intensity. Self-
calibrations are performed approximately every 24
hours using the reference channel. During the self-
calibration the sensor ppm reading is frozen and will
not react to changing CO
2
.
NOTE: See also the Demand Control Ventilation
(DCV) section on the next page.