Arzel Zoning
See how an Arzel technician connects the supply air temperature (SAT) and outdoor air temperature (OAT) sensors to the Pro Panel. In this video, we guide you through installing the SAT in the ductwork, installing the OAT in the sensor housing, and attaching both to the panel.
Today I’m going to demonstrate hooking up the sensors to the Pro Panel. When you get the Pro Panel, it’s going to come with two identical sensors. One is the SAT or supply air temperature sensor. The other is the OAT or outdoor air temperature sensor. The SAT sensor
is going to manage the high and low limits with inside, the ductwork should be installed downstream from the plenum, not being direct line of sight of the heat exchanger or evaporator coil, but
it should be installed before the first supply run or before the first trunk damper.
I am threading the
sensor wire through the sensor bushing to allow the sensor bushing to hold the sensor into the airstream. Here I’m drilling the hole from my sensor before the first supply run within 12 to 18in of the plenum. Now, after the hole is drilled, I’m installing the bushing with the sensor already installed in it in the airflow.
The sensor terminal blocks are going to have a R, W, and B port that corresponds with the color of wire. There’s going to be a red, white, and black wire. Put the wires in place and screw them in.
The Pro Panel is going to ship with an OAT or outdoor air temperature sensor.
This is going to allow the Pro Panel to control the balance point in heat pump applications.
The sensor is also going to have a sensor housing that comes with the pro panel.
This is going to protect the sensor from snow, ice, and thermal influence.
Now you should install the sensor, preferably on the north side of the house, in the shade, and never in direct sunlight.
Now the sensor is going to have about 15ft of wire with it, but when needed, you can add up to 50ft of 18/3 thermostat wire.
Now I’m going to demonstrate how to install the OAT in the housing.
Feed the wire through the round hole, through the zip tie, and pull the zip tie tight to hold it in place.
Here I’ve mounted the OAT sensor outside in a northern exposure in the shade.
And now I’m connecting the OAT sensor the same way we did the SAT sensor. Connecting the red, the white, and the black wires.
And there you have it.