KMC Controls AppStat Manual de usuario

Applicable models

This installation sheet applies to AppStat controllers

for fan coil units. The model numbers for these

models end with "0001". Additional information for

the controllers can be found in the document

Installation, Operation and Application Guide for the

AppStat which is available on the KMC partners web

site.

Illustration 1—Fan Coil Unit models

BAC-4 _ _ _ CW0001

1 3-speed fan, On/off valves

2 3-speed fan, Modulating valves

7Modulating fan, ON/Off valves

8 Modulating fan, Modulating Valves

0 Without humidity

2 With humidity

0 Without motion

2 With motion

Planning for motion sensing

For models with a motion sensor mount the AppStat

on a wall that will have an unobstructed view of the

typical traffic in the coverage area. When choosing a

location, do not install the sensor in the following

areas.

Behind curtains or other obstructions

In locations that will expose it to sunlight or heat

sources

Near a heating or cooling inlet or outlet.

Illustration 2—Typical motion sensing coverage area

The effective detection range is approximately 10

meters or 33 feet. Factors that may reduce the range

include:

The difference between the 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

warm air from an air-conditioning or heating

unit.

The sensor being directly exposed to sunlight, an

incandescent light, or other source of far-infrared

rays.

Small animal movement.

Mounting the AppStat

For the most accurate performance, install the

AppStat on an inside wall where it can sense the

average room temperature. Avoid locations with

direct sunlight, heat sources, windows, air vents,

and air circulation or obstructions such as curtains,

furniture, etc.

The AppStat must not be:

Mounted on an exterior wall.

Mounted on or near an object with large a

thermal mass such as a concrete block wall.

Blocked from normal air circulation by

obstructions.

Exposed to heat sources such as lights,

computers, copiers, or coffee makers, or to direct

sunlight at any time of the day.

Exposed to drafts from windows, diffusers, or

returns.

AppStat For Fan Coil Units

BAC-4000 Series BACnet Controllers

Installation Guide

AppStat For Fan Coil Units 1 Installation Guide

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

5.12 in.

130 mm

3.50 in.

89 mm

Inputs and

network

Power and outputs

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

A

WST

GND

DAT

COM

FAN-L

FAN-M

FAN-H

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

AppStat For Fan Coil Units 3 Installation Guide

the internal pull-up resistor. An STE-6011W10

sensor is suitable for this application. Follow the

instructions supplied with the sensor for

installation.

When a remote space temperature input is

connected to the AppStat, the remote temperature is

used instead of the internal temperature sensor.

Fan status switch (optional)

Connect a Normally Closed Fan Status switch to the

Discharge Air Temperature (DAT) input and ground

(GND) terminals. The input includes the internal

pull-up resistor. A CSE-1102 differential pressure

switch is suitable for this application. Follow the

instructions supplied with the switch for

installation.

Water temperature sensor

Connect a 10kΩ, Type III thermistor temperature

probe to the water temperature (WST) input. The

input includes the internal pull-up resistor. An

STE-1455 sensor is suitable for this application.

Follow the instructions supplied with the sensor for

installation.

Note: The water temperature sensor is a required

input sensor for 2-pipe fancoil units.

Discharge air temperature

Connect a 10kΩ, Type III thermistor temperature

probe to the discharge air temperature (DAT) input.

The input includes the internal pull-up resistor. An

STE-1405 sensor is suitable for this application.

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

Improperly connecting loads or

equipment to output terminals may

damage the equipment. Connect only

as shown in the following diagrams or

application drawings.

Illustration 5—FCU output terminals

0-10VDC

MS/TP

A

WST

GND

DAT

COM

FAN-L

FAN-M

FAN-H

BO4

BO5

GND

AO6

AO8

AO7

24VAC

24 VAC

24VAC

Connecting power

The AppStat requires an external, 24 volt, AC power

source. Use the following guidelines when choosing

and wiring transformers.

Use only a Class-2 transformer of the

appropriate size to supply power.

KMC Controls recommends powering the

AppStat from a dedicated controls transformer.

Connect the transformer’s neutral lead to the

COM terminal.

Connect the AC phase lead to the 24VAC

terminal.

Power is applied to the controller when the

transformer is powered.

See Installation accessories on page 4 for a list of

transformers available from KMC Controls, Inc.

Illustration 6—Wiring for AppStat power

24 VAC

Class-2

Controls

transformer

MS/TP

A

WST

GND

DAT

COM

FAN-L

FAN-M

FAN-H

BO4

BO5

GND

AO6

AO8

AO7

24VAC

AppStat For Fan Coil Units 4 919-019-01B

Maintenance

Remove dust as necessary from the holes in the top

and bottom. Clean the display with soft, damp cloth

and mild soap.

Specifications

AppStat specifications are subject to change without

notice.

Supply Voltage 24 volts AC (–15%, +20%),

50-60 Hz, 12 VA,

Class 2 only

Inputs 0–12 volts DC with internal 10kΩ

pull-up resistors

Relay outputs SPST, 24 volts, 1 amp AC or DC

Maximum for all relay outputs is

3 amps

Analog outputs Short protected 10mA 0–12 VDC

Environmental

limits

Operating 34 to 125° F (1.1 to

51.6° C)

Shipping –40 to 140° F

(–40 to 60° C)

Humidity 0 to 95% RH

(non-condensing)

Regulatory UL 916 Energy Management

Equipment

FCC Class B, Part 15, Subpart B

and complies with Canadian

ICES-003 Class B

This device complies with part 15 of the FCC Rules.

Operation is subject to the following two conditions:

(1) This device may not cause harmful interference,

and (2) this device must accept any interference

received, including interference that may cause

undesired operation.

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 available on the

KMC Controls web site.

For detailed specifications, installation, operating ,

application, and system integration information, see

The Installation, Operation, and Application Guide

for AppStat.

For additional specifications information, see the

BAC-4000 AppStat Data Sheet.

Important Notices

The material in this document is for information

purposes only. The contents and the product it

describes are subject to change without notice. KMC

Controls, Inc. makes no representations or

warranties with respect to this document. In no

event shall KMC Controls, Inc. be liable for any

damages, direct or incidental, arising out of or

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