BAPI VOC Duct Service Sensor, VOC Rough Service Sensor Catalog Page
VOC Duct and Rough Service Sensor
Overview and Identication
Humans respirate Volatile Organic Compounds
(VOCs) as well as CO2. The BAPI sensor measures
these VOCs and indicates when a space is occupied
just as well as a CO
The advantage of the VOC sensor is that it
measures air contaminants from other sources
besides respiration, such as building materials,
cleaners, perfumes and furniture and carpet
off-gassing.
Using this sensor for Demand Controlled Ventilation
then is a way of achieving true indoor air quality,
rather than just CO
it requires no additional work on your part. That’s
because the sensor converts the VOC reading to a
equivalent level. This lets you use ASHRAE’s
CO
2
-based VRP schedule to ventilate.
CO
2
The Duct Sensor samples duct air using an aspiration
tube, while the Rough Service unit features a
ventilated BAPI-Box and is ideal for areas such as
outdoor air plenums, equipment rooms, green houses
and warehouses. The VOC level is indicated as
“Good, Fair or Poor” by three discrete green, yellow
and red LED’s on the front of the unit.
reaches 2,000 PPM, the red LED will begin to ash
because it has hit its maximum output.
sensor.
2
dilution. A further benet is that
2
If the output
Installation & Operating Instructions
rev. 06/05/1840699_ins_VOC_3LED_BB
Fig. 1: Duct
VOC Sensor
Fig. 2: Rough
Service VOC
Sensor
Mounting Template
Fig. 3: Mounting
Template, Actual Size
Specications subject to change without notice.
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VOC Duct and Rough Service Sensor
Installation & Operating Instructions
rev. 06/05/1840699_ins_VOC_3LED_BB
Rough Service Unit Mounting
Mount the Rough Service sensor on a solid, non-vibrating surface. Wall mounting in a room should be 3 to 5 feet
above oor level. The Rough Service VOC transmitter may be mounted in any orientation. If you are mounting
inside a duct or mixing box, mount with the latch facing into the moving air.
Refer to local codes for further sensor/transmitter installation
information. See BAPI’s “Coverage Area” Application Note for
further mounting recommendations. To get to this application
note, go to www.bapihvac.com, select “Resource Library” from
the banner. Click on “Application Notes” then scroll down the
page to the heading “Air Quality Related” and chose “Coverage
Area and Mounting Recommendations for BAPI Indoor Air
Quality Sensors”.
1. BAPI recommends #10 (provided) screws of a type and
length suitable for the mounting surface. Four mounting
screws keeps the box from twisting, twisting may prevent the
latch from operating properly. A pilot-hole makes mounting
easier. Use the enclosure mounting feet to mark the pilothole locations.
2. Snug up the screws so that the foam backing is depressed
but do not over-tighten or strip the screw threads.
3. Place the provided #6 screws into the holes on each site of
the lid latch to make the cover tamper resistant.
Fig. 4: Mounting the Rough Service
sensor to a wall
Duct Unit Mounting
1. BAPI recommends placing the sensor in the middle of the duct
wall, away from stratied air, to achieve the best reading. The unit
should also be a minimum of 3 duct diameters from an elbow,
damper or other duct restriction.
2. Drill a 1” hole for the aspiration probe.
3. Position the box so that airow is directly into the holes on
one side of the aspiration probe. There are no upstream or
downstream holes, the air direction is not important.
4. Mount the enclosure to the duct using BAPI recommended #10
screws (provided) through a minimum of two of the mounting feet
on opposite corners. A 1/8” pilot screw hole in the duct makes
mounting easier. Use the enclosure mounting feet to mark the
pilot-hole locations.
5. Snug up the screws until the foam backing is compressed about
50% to prevent air leakage but do not over-tighten.
6. Use the provided #6 screws to secure the cover for IP66 rating.
7. BAPI recommends sealing the conduit opening with berglass
insulation.
Fig. 5: Duct unit mounting
Specications subject to change without notice.
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