Trane TZONE950AC52ZA User manual

ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES

IMPORTANT — This Document is customer property and is to remain with this unit.

These instructions do not cover all variations in systems or provide for every possible contingency to be met in connection with

the installation. Should further information be desired or should particular problems arise which are not covered sufficiently for the

purchaser’s purposes, the matter should be referred to your installing dealer or local distributor.

Table of Contents

Section 1. Safety................................................1

Section 2. General Information.........................2

Section 3. Physical Installation ........................5

Section 4. Wiring................................................7

Section 5. Installer Setup..................................9

Section 6. Advanced Features........................13

Section 7. Troubleshooting .............................17

Section 8. Installer Setup Parameters ...........18

NOTE: See the User’s Guide for

wireless setup information.

Section 1. Safety

▲WARNING

This information is intended for use by individuals possess-

ing adequate backgrounds of electrical and mechanical

experience. Any attempt to repair a central air conditioning

product may result in personal injury and/or property dam-

age. The manufacturer or seller cannot be responsible for

the interpretation of this information, nor can it assume any

liability in connection with its use.

▲WARNING

LIVE ELECTRICAL COMPONENTS!

During installation, testing, servicing, and troubleshoot-

ing of this product, it may be necessary to work with live

electrical components. Failure to follow all electrical safety

precautions when exposed to live electrical components

could result in death or serious injury.

03/11

18-HD64D1-1

ComfortLink™ II Installation Guide

Other Installation Guides may be necessary, based on system configuration.

A complete list of other optional components is shown below.

1 Thermostat

2Relay Panel

For use with 24V indoor systems (optional)

3Zone Panel (optional)

4Zone Sensor with Display (optional)

5Zone Sensor (optional)

6Zone Dampers (optional)

TZONE950AC52ZA

2 18-HD64D1-1

2.1 Overview

2.2 Contents in Box

2.3 Specifications

Speciﬁcation Description

Product Model: TZONE950AC52ZA

Product: ComfortLink II Thermostat

Size: 7.3” width x 4.3” height x 1.2” depth

Storage Temperature -40°F to 175°F, 5% to 95% RH non-condensing

Operating Temperature: 25°F to 126°F, 5% to 90% RH non-condensing

Input Power: 24 VAC from HVAC System (Range: 18-32 VAC)

Power Consumption: 7 VA*

Wire usage: Minimum 18 gauge NEC approved control wiring

Zone Sensor Wireless Range (802.15.4): 60 ft. through 3 standard walls

Wireless Connectivity Range (802.11 b/g): Varies with router model and placement

Communications: ComfortLink II - 3 wire connection

System Modes: Heat, Cool, Auto, Emergency Heat

Fan Modes: On, Auto, Circulate

Cooling Setpoint Temperature Range: 60°F to 99°F, 1°F resolution

Heating Setpoint Temperature Range: 55°F to 90°F, 1°F resolution

Indoor Temperature Display Range: 20°F to 119°F

Outdoor Temperature Display Range: -31°F to 119°F

Indoor Humidity Display Range: 0% to 99%, 1% resolution

Minimum Cycle Off Time Delay: Compressor: 5 minutes, Heat: 1 minute

The ComfortLink II Thermostat is a Communicating

7-inch color touch screen that provides an easy-to-

use interface to the end user.

The thermostat is a communicating wall mounted

control that allows a user to control an HVAC and

zoning system.

With the addition of the 24VAC Relay Panel, con-

ventional HVAC systems can also be controlled

and zoned.

The following parts are included in product model

TZONE950AC52ZA:

1 - Thermostat

1 - Sub-Base

3 - SnapSkru® Wall Achors

3 - 1” Screws

Section 2. General Information

* On every application, 24VAC loads should be reviewed to be sure the indoor unit control power transformer is adequately sized. See the Relay

Panel Installer’s Guide for guidelines.

18-HD64D1-1 3

2.4 ComfortLink II System Connections

Thermostat

TZONE950AC52ZA

Thermostat

TZONE950AC52ZA

Outdoor Unit

Indoor Unit

Relay Panel

BAY24VRPAC52DA

Relay Panel

Outdoor Unit

Indoor Unit

Communicating System

24V System

Wired Remote

Outdoor Sensor*

BAYSEN01ATEMPA

Wired Remote

Sensor*

ZZSENSAL0400AA

Wired Remote

Outdoor Sensor

BAYSEN01ATEMPA

Wired Remote

Sensor*

ZZSENSAL0400AA

*Optional

4 18-HD64D1-1

Thermostat

TZONE950AC52ZA

Thermostat

TZONE950AC52ZA

Outdoor Unit

Indoor Unit

Relay Panel

BAY24VRPAC52DA

Relay Panel

Outdoor Unit

Indoor Unit

Communicating System

24V System

Wired Remote

Outdoor Sensor*

BAYSEN01ATEMPA

Wired Remote

Sensor*

ZZSENSAL0400AA

Wired Remote

Outdoor Sensor

BAYSEN01ATEMPA

Wired Remote

Sensor*

ZZSENSAL0400AA

*Optional

2.4 ComfortLink II System Connections (Continued)

18-HD64D1-1 5

Temperature Sensing Considerations

Wireless Reception Considerations

Removing Sub-Base Wall Plate

The thermostat sensor is designed for installation

in climate controlled living spaces. It is recom-

mended to place the sensor in central locations

with good circulation. Avoid exterior walls and ar-

eas near windows, doors, vents or concealed pipes

or chimneys.

If enabling wireless, choose a mounting location that ensures adequate signal strength.

A wireless device may have signiﬁcantly different signal strengths if its position chang-

es relative to other wireless devices. If the thermostat shows poor signal strength, you

may be able to improve the signal strength by moving the thermostat a short distance

in any direction.

Considerations to Maximize Signal Strength:

Do not mount the thermostat• more than 30 feet from the wireless router (through no more than three

interior walls).

Do not mount the thermostat in areas where• electromagnetic emissions from other devices, appliances

or wiring can interfere with the thermostat’s communication. (i.e. wireless phones, security systems, wire-

less internet cameras)

Do not mount the thermostat in• recessed areas, near metal objects, or near structures. (i.e. doors, appli-

ances, entertainment centers or shelving units)

Do not mount the thermostat closer than• 2 inches to any pipes, duct work, or other metal obstructions.

Do not have• metal obstructions, concrete or brick walls between the thermostat and the wireless router

it will be connected to.

NOTE: See the User’s Guide for wireless setup information (weather, multi-system and remote software up-

date functionality).

Remove sub-base plate from the thermostat by in-

serting a small ﬂat blade screwdriver into the notch

at each of the four tabs as shown.

Gently pry the sub-base away from the the thermo-

stat.

NOTE: This tight ﬁt is normal and ensures that the

thermostat is held securely to the sub-base when

mounted on the wall.

5 FEET

[1.5 METERS]

YES NO

Section 3. Physical Installation

Wireless

6 18-HD64D1-1

Mounting Sub-Base to Wall

Be sure wires are routed through the center of the

base plate and are long enough to connect to ter-

minals.

Select and mark three holes.

NOTE: The three hole locations indicated at right

are recommended. The top location is an optional

mounting screw location.

A level may be used to ensure professional appear-

ance.

Attach base to wall using 3 screws provided. The

locations indicated provide the most secure mount-

ing and are recommended.

NOTE: Since moderate force is required when re-

moving the thermostat from the sub-base, the sub-

base must be securely attached to the wall.

Do not overtighten screws to avoid damaging the

sub-base.

1) Press tip of SnapSkru®an-

chor into drywall using #2 Phillips

screwdriver or screw gun. Drive

anchor clockwise into drywall until

anchor stops flush with wall.

2) Place sub-base over anchor

and insert screw.

3) Tighten screw flush with sub-

base. Screw “pops” open anchor,

locking anchor on wall.

Do not overtighten screws to avoid

damaging the sub-base.

If mounting to drywall, supplied SnapSkru®connectors must be used to mount the thermostat sub-base to

the wall. These connectors will ensure that the control is adequately supported.

NOTE: Since moderate force is required when removing the thermostat from the sub-base, a ﬁrmly mount-

ed sub-base is essential.

Mounting to Studs

Mounting to Drywall

Optional Hole

Three (3)

Recommended

Screw

Locations

18-HD64D1-1 7

CAUTION: EQUIPMENT DAMAGE HAZARD - Improper wiring can lead

to equipment damage. Follow the terminal connection information care-

fully to ensure the control is wired properly. After wires are secure, bare

wires MUST NOT touch each other. See the Field Wiring Diagrams for

specific system applications.

▲CAUTION

Connect wiring to terminals as

shown.

Route wiring within the plastic

channel as shown so that it does

not interfere with thermostat when

reinstalling. Do not overlap wires.

Plug the opening with non-ﬂamma-

ble insulation to prevent drafts from

affecting the thermostat.

▲WARNING

LIVE ELECTRICAL COMPONENTS!

During installation, testing, servicing, and troubleshooting of this prod-

uct, it may be necessary to work with live electrical components. Failure

to follow all electrical safety precautions when exposed to live electrical

components could result in death or serious injury.

NOTE: The maximum total cable length for the entire communicating system is 500 feet 18 AWG. The maximum distance of any single

cable from a transformer is 250 feet 18 AWG.

NOTE:

Use 18-gauge color-coded thermostat cable for proper wiring. Shielded cable is not typically required.•

Keep this wiring at least one foot away from large inductive loads such as Electronic Air Cleaners, motors, line starters, lighting bal-•

lasts and large distribution panels.

Failure to follow these wiring practices may introduce electrical interference (noise) which can cause erratic system operation.•

All unused thermostat wire to be grounded at indoor unit chassis ground only. Shielded cable may be required if the above wiring•

guidelines cannot be met. Ground only one end of the shield to the system chassis.

Replace unit ﬂat onto sub-base being careful to

align unit correctly with the sub-base before apply-

ing force.

Thermostat should ﬁt snug and not “rock” when

properly installed. Check wire routing if sub-base is

unstable.

Connect Wiring

Replace Thermostat

Section 4. Wiring

Optional Connections

Terminal Description

RS Remote Sensor

ODT Outdoor Temperature Sensor

The thermostat is powered via 24 VAC from the indoor unit. On every application, 24VAC loads should be re-

viewed to be sure the indoor unit control power transformer is adequately sized. The ComfortLink II thermostat

draws approximately 4VA more than the typical communicating thermostat.

Power Connections

Thermostat Connections

Terminal Description

D Data

R24 VAC (hot)

B 24 VAC (common)

8 18-HD64D1-1

Red

Brown

Blue

Red

Brown

Blue

24V Single Stage Cooling

Yellow

Blue Blue

Brown

Blue

Thermostat

Relay Panel

Red

Brown

Blue

BDR

Indoor Unit

Communicating Indoor Unit

Communicating

Outdoor Unit

Communicating System

Communicating Indoor with Non-Communicating Outdoor

24V System

24V Outdoor Unit

Communicating Indoor Unit

Relay Panel

*See Relay Panel

Installer’s Guide

for specific wiring

instructions.

Thermostat

Field Wiring

18-HD64D1-1 9

Communicating Equipment

Discovery mode begins when the thermostat is ﬁrst installed and power is connected. For communicating equip-

ment, the thermostat automatically conﬁgures standard equipment parameters.

24V Equipment (Using a Relay Panel)

Equipment will need to be conﬁgured manually through the Installer’s Setup menu in the thermostat. See the

following section for more details.

The home screen displays default temperature set-

tings and parameters.

Pressing a button will display additional information

or a new menu screen.

Help: Screens contain a Help button

which provides additional information.

Screens that are self-explanatory will not

list additional help.

Example (Menu):

Pressing the “Menu” button on the home

screen shows additional icons to adjust

settings.

Buttons shown will vary depending on

system type and conﬁguration.

Example (Air Cleaner Mode):

Pressing the “Air Cleaner Mode” button

on the home screen allows selection of

options from a list.

Section 5. Installer Setup

Power-Up

Basic Navigation

10 18-HD64D1-1

Enter the Installer’s Setup screen by navigating to:

Home screen --> Menu --> Service --> Technician

Access --> Proceed* --> Installer Setup

*NOTE: Press and hold the “Technician Access”

button for 5 seconds to enter the Installer Setup

screen.

NOTE: See Section 8 for a complete list of menus

and parameters that can be set in the Installer

Setup menus.

Installer Setup Menu

Table of contents

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