Installing Wall Mounted Controls

installation

Installation procedure

Reference the wall-mounted zone sensor dimensions in Figure I-IP-6. Position the controller on an inside wall three to five feet above the floor and at least 18 inches from the nearest outside wall. Installing the controller at a lower height may give the advantage of monitoring the temperature closer to the zone, but it also exposes the controller to airflow obstructions. Ensure that air flows freely over the controller.

Before beginning installation, follow the wiring instructions below. Also, refer to the unit wiring schematic for specific wiring details and point connections.

Wiring Instructions

Avoid mounting the controller in an area subject to the following conditions:

•Dead spots, such as behind doors or in corners that do not allow free air circulation.

•Air drafts from stairwells, outside doors, or unsectioned hollow walls.

•Radiant heat from the sun, fireplaces, appliances, etc.

•Airflow from adjacent zones or other units.

•Unheated or uncooled spaces behind the controller, such as outside walls or unoccupied spaces.

•Concealed pipes, air ducts, or chimneys in partition spaces behind the controller.

Fan Mode Switch Installation

The fan mode switch ships loose inside the unit accessory bag. Follow the steps below to install the fan mode switch.

Items needed:

2 x 4 electrical junction box

1.Remove the brown wire if not using a field-supplied damper. Remove the terminals, cut and strip wires as required for installation.

2.Level and position a 2 x 4 electrical junction box. Follow the instructions given in the “Interconnection Wiring” section and route the wires as shown in the wiring diagram. Refer to the typical wiring diagram or to the unit specific diagram on the unit.

3.Position the fan mode switch over the junction box with the two screws supplied.

Zone Sensor Installation

Follow the procedure below to install the zone sensor module.

1.Note the position of the setpoint adjustment knob and gently pry the adjustment knob from the cover using the blade of a small screwdriver.

2.Insert the screwdriver blade behind the cover at the top of the module and carefully pry the cover away from the base.

3.To install the zone sensor module without a junction box (directly to the wall):

a. Using the module base as a template, mark the the rectangular cutout for the control wiring and module installation holes. Ensure the base is level.

b.Set the base aside and make the cutout. Then, drill two 3/16” diameter holes approximately one-inch deep.

Insert and fully seat the plastic anchors.

c.Pull the control wires through the cutout and attach the module to the wall using the screws provided.

4.To install the zone sensor module to a standard junction box:

a.Level and install a 2“ x 4” junction box (installer supplied) vertically on the wall.

b.Pull the control wires through the cutout. Attach the module to the wall using the screws provided.

5.Strip the insulation on the interconnection wires back 0.25 inch and connect to TB1. Screw down the terminal blocks.

6.Replace the zone sensor cover and adjustment knob.

If installing a TracerZN510 or Tracer ZN520 zone sensor, see the Tracer Summit Communication section for more information.

Figure I-IP-6. Wall mounted zone sensor dimensions.

44	UNT-SVX07A-EN