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AppStat For Fan Coil Units

2

Installation Guide

Exposed to air flow through connecting conduits
or empty spaces behind walls.

For models with motion sensing, see the topic,

Planning for motion sensing

.

Rough-in preparation

Complete rough-in wiring at each location before
mounting an AppStat. This includes the following
steps.

Install the supplied mounting base directly to a
wall, a vertical electrical box, or a box with a wall
plate kit.

Routing the connecting cable or cables from the
AppStat to the equipment it is controlling.

If required, install an appropriate wall plate kit.

Block leaks and airflow from conduits with
plumber’s putty or similar material.

If replacing an existing thermostat, label existing
wires for reference when removing the existing
thermostat.

Illustration 3—AppStat mounting base details

A

5.12 in.

130 mm

  3.50 in.

 89 mm

Input

s and

network

Power and output

s

Installing the AppStat

To install the controller on a mounting base, do the
following:

1.

Turn the Allen screw in the base of the sensor
clockwise until it clears the case.

Turn clockwise to remove
from base.

2.

Swing the AppStat away from the mounting base
to remove it.

3.

Route wiring for the AppStat through the

mounting base.

4.

Position the base with the embossed UP toward
the ceiling and fasten it directly to a vertical 2 x 4
inch electrical box. For horizontal boxes or 4 x 4
applications, use a wall plate kit. See

Installation

accessories

on page 4

for part numbers.

5.

Connect the wires for the AppStat to the
terminals in the mounting base.

6.

Place the top of the sensor over the top of the
mounting base and swing it down over the Allen
screw bracket. Be careful not to pinch any wiring.

7.

Turn the Allen screw counterclockwise until it
backs out of the mounting base and engages the
case.

Turn counterclockwise
until the screw engages
the base.

Caution

To prevent mounting screw heads from
touching the circuit board in the
controller, use only the mounting
screws supplied by KMC Controls.
Using screws other than the type
supplied may damage the AppStat.

Connecting inputs

The inputs for the AppStat are configured for
specific functions and do not require set up in the
field. Not all inputs are required for every model or
application.

Illustration 4—FCU inputs

Remote Space Temp.

Water Source Temp.

Discharge Air Temp.

N.C. Fan Status

MS/TP

+B

–A

RS

WST

GND

DAT

COM

FAN-L

FAN-M

FAN-H

R

BO4

BO5

GND

AO6

AO8

AO7

24VAC

Remote space temperature sensor (optional)

Connect a 10kΩ, Type II thermistor temperature
sensor to the remote space temperature (RS) input
and ground (GND) terminals. The input includes

Summary of Contents for AppStat

Page 1: ...e surface temperature of the object and the background temperature of the room is too small Object movement in a direct line toward the sensor Very slow or very fast object movement Obstructions as shown in the illustration Typical motion sensing coverage area on page 1 False detections may be triggered by The temperature inside the detection range suddenly changes because of the entry of cold or ...

Page 2: ...the mounting base 4 Position the base with the embossed UP toward the ceiling and fasten it directly to a vertical 2 x 4 inch electrical box For horizontal boxes or 4 x 4 applications use a wall plate kit See Installation accessories on page 4 for part numbers 5 Connect the wires for the AppStat to the terminals in the mounting base 6 Place the top of the sensor over the top of the mounting base a...

Page 3: ...on Follow the instructions supplied with the sensor for installation Connecting outputs The AppStat outputs are model dependent and are configured for specific applications No field programming or set up is required or possible Depending on model and application the AppStat outputs are designed for either 24 volt AC or 0 10 volt DC loads The outputs may represent analog or digital signals Caution ...

Page 4: ...ion Installation accessories The following accessories are available from KMC Controls Inc XEE 6111 040 Single hub 120 volt power transformer XEE 6112 040 Dual hub 120 volt power transformer XEE 6311 075 120 240 277 480VAC 24 VAC 75 VA transformer HMO 10000W White mounting plate kit for retrofit on horizontal boxes or 4 x 4 handy boxes Additional resources The latest support files are always avail...

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