McQuay T9000 Installation Manual

Operation & Maintenance Data OM 897

Wireless Temperature Control

For McQuay "Applied" Package Terminal Air Conditioners and Heat Pumps

Group: PDAC/PDHP

Part Number: 668111001

Date: January 2008

Contents

Introduction ...................................................... 3

Batteries

Installing/Changing ...................................... 3

Replacing ..................................................... 3

Mounting

Wall Mount ................................................... 4

Back Stand .................................................. 4

Buttons ............................................................. 4

Back Light ........................................................ 4

Setting the Clock ..........................................

Thermostat

Programming ............................................... 5

Navigating .................................................... 6

Exiting the Program Mode ........................... 6

4-5

Run Button .......................................................

Program/Manual Operation ......................... 6

Changing Temperature ................................... 6

While Running a Program ........................... 6

Installing and Removing Nodes

Installing Nodes ........................................ 6-7

Installing Multiple Nodes .............................. 8

Uninstalling Nodes ....................................... 9

Thermostat Reset ............................................ 9

Frequently Asked Questions ................... 10-11

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Base Plate

Front Cover

Latches

Introduction

Circuit Board

Set A

Set B

Thermostat will operate on either Set A, Set B or both. When changing, replace with all new batteries. Never use a mix of old and new.

Battery orientation is critical.

Thermostat opened back

The T9000 Wireless Temperature Control is a twopart wireless thermostat system designed to provide precision temperature control without the installation labor and expense of wiring. Powered by AA batteries, the thermostat can operate continuously for approximately 18 months, and can be mounted in any suitable location that will provide good temperature control. A large LCD display (Figure 1) provides the user with current room temperature, set point temperature, time, program interval, and other system status information. In hotel applications, programming, clock set up buttons and associated display information are typically not displayed. The second part of the T9000 system is called a Remote

Control Node or “RCN”. An RCN interfaces with specic

desired HVAC equipment, and communicates with its thermostat using unlicensed 900 MHz, radio frequency energy. At the time of installation, the T9000 thermostat is linked to one or more RCN controls. The thermostat and RCN that have been linked will not interfere with, or be affected by, any other thermostat or RCN in adjacent rooms, apartments, or neighboring homes.

Figure 1. T9000 Front View

Replacing Batteries

To open the thermostat, use both hands and press the two push-tabs on the bottom of the thermostat housing with your thumbs while pulling the front of the thermostat away from the base (Figure 2)

Figure 2. Opening Thermostat

The T9000 operates with either two or four AA batteries. Four (4) batteries double the time between battery changes (the average user can expect 1 to 1.5 years of battery life). Batteries are paired, one set on top of the other (see Figure 3).

Figure 3. Battery Location

Note: Do not mix old and new batteries. When

Batteries

Installing/Changing

A low battery icon will light on the thermostat display when the batteries are within approximately one week of being exhausted. The T9000 is designed to use standard AA size, 1.5-volt alkaline batteries. If the batteries become completely depleted, the heating/ cooling system will go to the “Off” state.

batteries are changed, replace them all at the same time.

Programmed data for heating, cooling and time of day will be lost when batteries are completely removed or depleted and will have to be re-enterend along with resetting the clock. To avoid this, batteries can be replaced one set at a time before they are depleted. However, after

the rst set is replaced, immediately replace the second

set with new batteries.

OM 897 / Page 3 of 12

Mounting

Find a suitable location for mounting your thermostat,

preferably an interior wall centrally located within the

conditioned space at about 5 feet above the oor. Try

not to locate the thermostat in a place where it could be exposed to heat such as a warm air vent, or where it could be exposed to direct sunlight.

Wall-Mount

The T9000 back mounting plate provides six (6) mounting holes. The upper and lower holes on the vertical centerline will match up with screw positions of a standard electrical switchbox or dry-wall mounting ring.

Step One

Remove the back plate from the thermostat housing (Figure 2) and use it to mark locations for mounting holes. While operation of the thermostat is not affected by orientation, we recommend using a level across the top or side of the base plate to provide a professionally installed appearance.

Figure 5. General Operation Display

Note that the UP, DOWN and HEAT/COOL buttons are also used in setting the clock and programming the thermostat, and linking to nodes. This will be covered in the following sections of the manual.

Four buttons located on the left side of the thermostat (refer to Figure 1 & 11) control display of temperature in either Fahrenheit or Celsius, programming, clock setup and control of whether the thermostat is under manual or program control.

Step Two

Drill 3/8" holes and insert drywall fasteners (#6 screws recommended) and fasten the back plate to the wall.

Back Stand

Located on the back of the housing is a built-in, hinged stand support. This feature permits the thermostat to stand

on a at surface, such as a table or shelf, in the event that

a permanent mounting to the wall is not desired.

Buttons

Four buttons are located on the front of the T9000.

Figure 4.

Fan Up Down Heat/Cool

These buttons are used in adjusting fan operation, changing the set point temperature up or down, and changing the operating mode of the thermostat. See Figure 1 & 11 for front view of the thermostat and button locations. Figure 4 shows the display items that are changed by these four buttons in normal operation.

• F / C – Toggles Fahrenheit Celsius display

• Program set up button

• Run – Sets program or manual mode of operation

• Clock set up button

Backlight

A single button on the right hand side of the thermostat

activates the display backlight. When pressed, the

backlight will illuminate the display briey and turn off. If

other buttons are pressed immediately after the backlight button, the display will stay illuminated until a few seconds after all button activity has ended. Backlighting

takes signicant energy from the batteries and should be

used sparingly. Frequent use of the backlight function will noticeably reduce battery life.

Setting The Clock

In all setup modes, the T9000 will ash the display

item you are about to change. The UP and DOWN buttons change settings, the HEAT/COOL button is used to move to the next item.

To set the clock, you will use the buttons marked

CLOCK, UP, DOWN, and HEAT/COOL.

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