Field Installation - Distech Controls Smart Air Control Valve Installation Manual

Field Installation

Duct Clearance
It is recommended to keep at least 3 duct diameters upstream and downstream of the SACV to allow fully developed flow into the valve and ensure its
unobstructed operation.
Discharge Air Temperature (DAT) Sensor
A discharge air temperature (DAT) sensor is supplied with the Smart Air Control Valve and can be connected to the controller using the UI2 and COM
ports. Please follow installation recommendations with care when connecting the DAT sensor to avoid any damage to the SACV.
The DAT sensor is secured to the SACV upon delivery as shown in the figure below and can be detached for installation at the appropriate location.
Figure 6: Discharge Air Temperature sensor location
Install with care: Install the DAT sensor on ductwork downstream of the SACV. Do NOT attempt to install the
sensor on the SACV itself.
Mount the sensor on the top or sides of duct work; mounting on the bottom risks damage due to moisture.
The sensor should be mounted in the middle of the duct where air circulation is well mixed (no stratification), and
not blocked by obstructions. Stratification and obstructions can cause sensing errors. An example of incorrect
position is downstream from a heating or cooling coil.
1. Drill a 3/8" hole in the duct and insert the probe through the hole until the foam pad is tight to the duct. Drill pilot holes for the (2) mounting screws.
Use the enclosure flange as a guide, or use the dimensions listed below to measure out.
2. Fasten and insert (2) screws #8 x 3/4" TEK (provided and recommended) through the mounting holes in the flange and tighten until the unit is held
firmly to the duct. Make sure the foam pad is tight to the duct to eliminate any possible air leaks.
Figure 7: DAT sensor mounting on ductwork
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