Product Overview

1
Description and Application
The KMC SSS-1000 series sensors are designed to
sense dierential pressure in the inlet section of VAV
(Variable Air Volume) terminal units and fan termi-
nal units. These sensors are most typically used in
conjunction with VAV controllers for individual zone
control in HVAC systems. They can also be used to
sense dierential pressure at other locations in the
main or branch duct systems. The dierential pres-
sure read between the high “H” port and the low
“L” port can be used to determine the air ow. Static
pressure can also be measured using just one of the
ports with the sensor rotated 90°. (See Sample Ap-
plications on page 4.)
Models oer up to four sensing points and sensing
lengths of 3-5/32 to 9-29/32 inches to accommodate
box size diameters of 4 to 16 inches.
For using SSS-100x sensors with CSC-3000 series,
CSP-4000/5000 series, KMD-7000 series, and BAC-
7000/8000/9000 series controllers, use a barb union
adapter and appropriately sized polyethylene tubing
to the sensor and controller. For maximum accuracy
in the CSP-5000 series, KMD-7000 series, and BAC-
7000 series controllers, the 3/8" OD tubing between
the sensor and the adapter should be as short as
possible, and the 1/4" OD tubing from the adapter to
the controller should be 24" long (on both the High
and the Low sides). Alternately, use the equivalent
SSS-101x sensor and just 1/4" OD tubing (no adapter
is necessary).
To nd the appropriate sensor “K” factor:
• For VAV controllers needing K
CFM
for setup, see
“Cubic Feet Per Minute” K Factors on page 2.
• For VAV controllers needing K
FPM
for setup, see
“Feet Per Minute” K Factors on page 3.
See the controller’s documentation for details.
Specifications and design subject to change without notice.
SSS-1000 Series
Differential Pressure Flow Sensors
Models
SSS-100x (light gray) models have 1/4" connections
for 3/8" OD polyethylene tubing
SSS-1002 One sensing point, 3-5/32"
(80 mm) length
SSS-1003 Two sensing points, 5-13/32"
(137 mm) length
SSS-1004 Three sensing points, 7-21/32"
(195 mm) length
SSS-1005 Four sensing points, 9-29/32"
(252 mm) length
SSS-101x (light almond) models have 3/16"
connections for 1/4" OD polyethylene tubing
SSS-1012 One sensing point, 3-5/32"
(80 mm) length
SSS-1013 Two sensing points, 5-13/32"
(137 mm) length
SSS-1014 Three sensing points, 7-21/32"
(195 mm) length
SSS-1015 Four sensing points, 9-29/32"
(252 mm) length
NOTE: For maximum measurement accuracy,
install the longest sensor that will t in
the duct.
Description and Application 1
Models 1
Dimensions and Details 2
Specifications 2
General 2
“Cubic Feet Per Minute” K Factors 2
“Feet Per Minute” K Factors 3
Sample Applications 4
Differential Pressure Sensor for Pressure Independent VAV 4
Static Pressure Sensor for Static Pressure Bypass Control 4