Velocity Sensors/Controllers
Humidistats
and
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Engineering
Guide
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Reference
70-6925 31
CP980 Velocitrol Velocity Sensor/Controller
An ultra-sensitive air velocity sensor and pneumatic controller,
control pneumatic damper actuators in heating and air
conditioning systems to provide constant air velocity in the duct
regardless of the static pressure.
• State-of-the-art design provides reliable operation.
• Not position sensitive.
• Direct Acting (DA) and Reverse Acting (RA) models are available.
• Insensitive to static pressure changes.
• Accurate control throughout entire velocity range.
• Graduated scales for minimum and maximum velocity adjustments.
• Velocity reset by thermostat demand.
• Adaptable to many terminal unit control strategies.
Single Duct, Variable Constant Volume Application Dual Duct, Variable Constant Volume Application
Dimensions, Approximate: Controller: 1 3/4 in. high x 3 1/4 in. wide x
2 3/8 in. deep / Sensor: 3 3/16 in. high x 1 3/4 in. wide x 4 3/16 in. long
with orifice and 3 3/8 in. long without orifice
(Controller: 44 mm high x 83 mm wide x 60 mm deep / Sensor: 81 mm
high x 45 mm wide x 107 mm long with orifice and 86 mm long without
orifice.)
Airflow Usage: 0.029 scfm (13.7 mL/s), includes supply for bleed type
thermostats for type B, does not include thermostat air for type C
controller
Maximum Safe Operating Pressure: 30 psi (207 kPa)
Mainline Air Pressure (min):
18 psi (124 kPa)
Nominal Mainline Air Pressure: 20 psi (138 kPa)
Remote Sensor: Yes
Temperature Range: 40 F to 130 F (5 C to 55 C)
Operating Humidity Range: 5 to 95% RH
M16743
INLET
(COLD)
CONTROLLER
SENSOR
DISCHARGE
AIR
M
B
A
B
A
213
THERMOSTAT
D.A.
“B”
OPERATOR
M16707
HOT
COLD
N.O.
N.C.
3-8 LB/IN
2
(21-55 kPa)
5-10 LB/IN
2
(34-69 kPa)
"C"
CONTROLLER
SENSOR
M
M
BA
BA
213
THERMOSTAT
D.A.
Product Number Application Action
Control Range
Reset Pressure
Range
Comments(fpm) (m/s) (psi) (kPa)
CP980C1065 Velocitrol Air
Velocity Sensor
B Type
Direct, non-
sequencing,
normally open
500 fpm up to 3500
fpm by changing orifice
2.5 m/s up to 17.8 m/s
by changing orifice
1 to 15
psi
7 to 103
kPa
For normally open
damper and one-pipe
thermostat
CP980D1063 Velocitrol Air
Velocity Sensor
B Type
Reverse, non-
sequencing,
normally closed
500 fpm up to 3500
fpm by changing orifice
2.5 m/s up to 17.8 m/s
by changing orifice
1 to 15
psi
7 to 103
kPa
For normally closed
damper and one-pipe
thermostat
CP980E1060 Velocitrol Air
Velocity Sensor
C Type
Direct, sequencing,
normally open
500 fpm up to 3500
fpm by changing orifice
2.5 m/s up to 17.8 m/s
by changing orifice
9 to 15
psi
62 to 103
kPa
For normally open
damper and two-pipe
thermostat
CP980F1068 Velocitrol Air
Velocity Sensor
C Type
Reverse,
sequencing,
normally closed
500 fpm up to 3500
fpm by changing orifice
2.5 m/s up to 17.8 m/s
by changing orifice
9 to 15
psi
62 to 103
kPa
For normally closed
damper and two-pipe
thermostat
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