These combination air flow transducers and actuator units are designed primarily
for variable air volume terminal units controlled via Direct Digital Control
(DDC) systems such as KMC’s Digital System. They can be used in slave or dual
duct tracking applications.
Air flow is sensed by utilizing a single or multi-point differential (velocity)
pressure measuring station or pitot tube. Air flow sensing is accomplished
utilizing twin platinum resistance temperature detectors. Velocity measurement
is maintained at 3% accuracy over the range of 0 to 3,300 feet per minute (FPM).
Each unit mounts directly to a 1/2" diameter or 3/8" square damper shaft, or a
3/8" diameter shaft (HFO-0011 shaft adaptor required). Damper control is
provided by an 18°/minute or 60°/minute actuator. The actuator is controlled by
an SPDT “floating” input (on the TSP-5003/5023) or 2 to 10 VDC proportional
input (on the TSP-5002/5022). A minimum of 50 in-lbs. torque is provided. Both
minimum and maximum stops are standard to limit the rotation. A gear
disengagement feature allows positioning the damper and/or gear-train without
energizing the actuator.
A 10,000 ohm, 1/3 watt feedback potentiometer is standard on the TSP-5003/5023
(only).
A single or double auxiliary switch may be field installed.
Accessories are available:
CME–1002
Single auxiliary switch
CME–1004
Double auxiliary switch
HMO-1003
Replacement non-rotation bracket (one included)
HFO–0011
3/8" shaft adaptor
HMO–4518
Connector for 1/2" flexible metal conduit
HMO–4520
Compression connector for plenum cable
HMO–4526
Female connector for 1/2" conduit
