Trane 18-HD64D1-4, ComfortLink II, TZONE950AC52ZA Installation Manual
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WARNING
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WARNING
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TZONE950AC52ZA
18-HD64D1-4
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 Control
Relay Panel
2
For use with 24V indoor systems (optional)
Zone Panel (optional)
3
Zone Sensor with Display (optional)
4
Zone Sensor (optional)
5
Zone Dampers (optional)
6
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.
Section 1. Safety
Table of Contents
This information is intended for use by individuals possessing adequate backgrounds of electrical and mechanical
experience. Any attempt to repair a central air conditioning
product may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for
the interpretation of this information, nor can it assume any
liability in connection with its use.
LIVE ELECTRICAL COMPONENTS!
During installation, testing, servicing, and troubleshooting 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.
Section 1. Safety ................................................1
Section 2. General Information .........................2
Section 3. Physical Installation ........................4
Section 4. Wiring ................................................6
Section 5. System Setup ...................................9
Section 6. Advanced Features ........................15
Section 7. Troubleshooting .............................19
NOTE: See the User’s Guide for
wireless setup information.
07/12
Section 2. General Information
2.1
Overview
The ComfortLink II Control is a communicating
7-inch color touch screen that provides an easy-touse interface to the end user.
The Control is a communicating wall mounted
control that allows a user to manage an HVAC and
zoning system.
With the addition of the 24VAC Relay Panel, conventional HVAC systems can also be controlled.
2.2
Contents in Box
The following parts are included with this product:
1 - Control
1 - Sub-Base
4 - SnapSkru® Wall Achors
4 - 1” Screws
2.3
Specifications
Specification Description
Product Model: TZONE950AC52ZA
Product: ComfortLink II Control
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
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, Indoor Heat: 1 minute
* 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.
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Communicating System
Outdoor UnitIndoor Unit
Communicating System
24V System
Optional Wired
Remote Sensor
ZZSENSAL0400AA
Control
TZONE950AC52ZA
2.4
ComfortLink II System Connections
2.4.1 Communicating System
Control
TZONE950AC52ZA
Optional Wired
Remote Sensor
ZZSENSAL0400AA
Outdoor UnitIndoor Unit
2.4.2 24V System
Control
TZONE950AC52ZA
* Can alternatively be connected to the Relay Panel
** Can alternatively be connected to the 950 Control
Optional Wired
Remote Sensor*
ZZSENSAL0400AA
Wired Remote
Outdoor Sensor**
BAYSEN01ATEMPA
Relay Panel
Relay Panel
BAY24VRPAC52D
Indoor Unit
Outdoor Unit
18-HD64D1-4 3
Section 3. Physical Installation
3.1
Locational Considerations
3.1.1 Temperature Sensing Considerations
The 950 Control is designed for installation in climate controlled living spaces. It is recommended to place
the unit in central locations with good circulation. Avoid exterior walls and areas near windows, doors, vents
or concealed pipes or chimneys. Important: The 950 Control utilizes a large 7” touch screen. This screen
generates heat which is vented out the top of the Control utilizing natural convection. If an air source is directed
at or from above, heat from the screen can be trapped within the Control body and can cause the indoor
temperature to be biased.
Correct
Correct
Placement
Placement
of the 950
of the 950
2 FEET
Optimum
Zone
5 FEET
Natural heat
dissapation
from the 950
Touch Screen
Onboard
Thermistor
Incorrect
Placement
of the 950
Heat from the 950 screen may be
trapped within the body of the 950
control by an external top-down airflow
source, such as a ceiling fan.
The onboard thermistor may be
biased by this heat causing the
displayed indoor temperature to be
Ceiling Fan
elevated.
3.1.2 Wireless Recption Considerations
If enabling wireless, choose a mounting location that ensures adequate signal strength.
A wireless device may have significantly different signal strengths if its position changes relative to other wireless devices. If the control shows poor signal strength, you may
be able to improve the signal strength by moving the control a short distance in any
direction.
Considerations to Maximize Signal Strength:
Wireless
• Do not mount the control more than 30 feet from the wireless router (through no
more than three interior walls).
• Do not mount the control in areas where electromagnetic emissions from other devices, appliances or
wiring can interfere with the control’s communication. (i.e. wireless phones, security systems, wireless internet cameras)
• Do not mount the control in recessed areas, near metal objects, or near structures. (i.e. doors, appliances,
entertainment centers or shelving units)
• Do not mount the control closer than 2 inches to any pipes, duct work, or other metal obstructions.
• Do not have metal obstructions, concrete or brick walls between the control and the wireless router it
will be connected to.
NOTE: See the User’s Guide for wireless setup information.
3.2
Removing Sub-Base Wall Plate
Remove sub-base plate from the Control by inserting a small flat blade
screwdriver into the notch at each of the four tabs as shown.
Gently pry the sub-base away from the Control.
NOTE: This tight fit is normal and ensures that the Control is held securely to
the sub-base when mounted on the wall.
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Optional Hole
3.3
Mounting Sub-Base to Wall
Be sure wires are routed through the center of the
base plate and are long enough to connect to terminals.
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 appearance.
Three (3)
Recommended
Screw
Locations
3.4
3.5
Mounting to Studs
Attach base to wall using 3 screws provided. The
locations indicated provide the most secure mounting and are recommended.
NOTE: Since moderate force is required when removing the Control from the sub-base, the sub-base
must be securely attached to the wall.
Do not overtighten screws to avoid damaging the
sub-base.
Mounting to Drywall
If mounting to drywall, supplied SnapSkru® anchors must be used to mount the Control sub-base to the wall.
These anchors will ensure that the Control is adequately supported.
NOTE: Since moderate force is required when removing the Control from the sub-base, a firmly mounted
sub-base is essential.
1) Press tip of SnapSkru® anchor into drywall using #2 Phillips
screwdriver or screw gun. Drive
anchor clockwise into drywall until
anchor stops flush with wall.
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2) Place sub-base over anchor
and insert screw.
3) Tighten screw flush with subbase. Screw “pops” open anchor,
locking anchor on wall.
Do not overtighten screws to avoid
damaging the sub-base.
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CAUTION
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WARNING
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D
R
B
Section 4. Wiring
4.1
LIVE ELECTRICAL COMPONENTS!
During installation, testing, servicing, and troubleshooting 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.
Warnings
CAUTION: EQUIPMENT DAMAGE HAZARD - Improper wiring can lead
to equipment damage. Follow the terminal connection information carefully 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.
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.
4.2
Power Connections
The Control is powered via 24 VAC from the indoor unit. On every application, 24VAC loads should be reviewed
to be sure the indoor unit power transformer is adequately sized. The ComfortLink II Control draws approximately
4VA more than the typical communicating Control.
4.3
Connect Wiring
Connect wiring to terminals as
shown.
Route wiring within the plastic
channel as shown so that it does
not interfere with Control when
reinstalling. Do not overlap wires.
Plug the opening with non-flammable insulation to prevent drafts from
affecting the Control.
Note: Do not pull unused
Terminal Description
conductors through the opening
due to the minimal clearance
between the sub-base and Control.
4.4
Replace unit flat onto sub-base being careful to
align unit correctly with the sub-base before applying force.
Replace Control
Control Connections
D Data
R
B 24 VAC (common)
24 VAC (hot)
Optional Connections
Terminal Description
RS Remote Sensor
RS Remote Sensor
ODT Outdoor Temperature Sensor
ODT Outdoor Temperature Sensor
Control should fit snug and not “rock” when properly installed. Check wire routing if Control is unstable.
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