Carrier Thermostat User Manual

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Programmable Thermostats

Installation, Start-Up, and Operating Instructions

NOTE:

Read the entire instruction manual before starting the

installation.

This symbol

indicates a change since the last issue.

INDEX

Page

SAFETY CONSIDERATIONS .....................................................1
INTRODUCTION ..........................................................................1
INSTALLATION CONSIDERATIONS .......................................1
INSTALLATION......................................................................2-12

Location.....................................................................................2
Set DIP Switches ......................................................................2
Install Thermostat ..................................................................2-3
Set Thermostat Configuration ...............................................3-4
Check Thermostat Operation ................................................4-5
Final Settings ............................................................................5
Checklist....................................................................................5

WIRING DIAGRAMS .............................................................6-12
OPERATIONAL OPERATION ..................................................13
TROUBLESHOOTING ...............................................................13
CONFIGURATION RECORD....................................................14

SAFETY CONSIDERATIONS

Read and follow manufacturer instructions carefully. Follow all
local electrical codes during installation. All wiring must conform
to local and national electrical codes. Improper wiring or installa-
tion may damage thermostat.

Recognize safety information. This is the safety-alert symbol

.

When you see this symbol on the equipment and in the instruction
manual, be alert to the potential for personal injury.

Understand the signal words DANGER, WARNING, and CAU-
TION. These words are used with the safety-alert symbol. DAN-
GER identifies the most serious hazards which will result in severe
personal injury or death. WARNING signifies a hazard which
could result in personal injury or death. CAUTION is used to
identify unsafe practices which would result in minor personal
injury or product and property damage.

INTRODUCTION

Carrier’s 7-day programmable thermostats are wall-mounted, low-
voltage thermostats which maintain room temperature by control-
ling the operation of a heating and air conditioning system.
Separate heating and cooling setpoints, plus auto changeover allow
setback programming for maximum energy savings. All of the
thermostats allow up to 4 time/temperature settings to be pro-
grammed per 24 hr period and store programs for 7 independent
days. Batteries are not required; during a power interruption, the
internal memory stores programs for an unlimited time and the
clock continues to run for at least 72 hrs.

INSTALLATION CONSIDERATIONS

Power

Note that all TSTAT models require no batteries and are not
"power stealing". They do require 24VAC (R and C terminals) to
be connected for proper operation. Thermostat will not operate
without these 2 connections.

Models

There are 3 different models. The 9th and 10th letters of the part
number indicate the model. These 2 letters appear on the package
and on the circuit board. Be sure to have the proper thermostat for
the intended application. Models are:

AC - 1-stage cool, 1-stage heat - for AC systems only.
HP - 1-stage cool, 2-stage heat - for either HP or AC with 2-stage

heat.

2S - 2-stage cool, 2-stage heat - for 2-speed AC systems, or

2-stage cool, 3-stage heat - for 2-speed HP systems, or
1-stage cool, 4-stage heat - for 1-speed HP with special
3-stage electric heat.

Use each only for its intended purpose. (See Table 1.)

Outdoor Temperature Sensing

All Carrier programmable thermostats may be equipped with an
optional

outdoor

temperature

sensor,

Part

No.

TSTATXXSEN01-B. If it is to be used, plan installation so that 2
wires can be run from the thermostat to an outdoor location,
preferably on the north side of the house OR refer to Installation
Instructions included with the outdoor temperature sensor for
simplified connection. Sensor can be mounted to outdoor unit and
existing control wires used for its connection. Details are provided
to the sensor instructions.

INSTALLATION

Step 1—Thermostat Location

Thermostat should be mounted:

Approximately 5 ft (1.5m) from floor.

As an ENERGY STAR Partner, Carrier Corporation has
determined that this product meets the ENERGY STAR
guidelines for energy efficiency.

Fig. 1—Carrier Programmable Thermostat

A98426

HEIGHT (IN.)

WIDTH (IN.)

DEPTH (IN.)

4-1/4

7-1/2

1-3/8

Visit www.carrier.com

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book 1

4

Tab

misc. misc.

PC 101

Catalog No. 03TS-TA2

Printed in U.S.A.

Form TSTAT-15SI

Pg 1

9-98

Replaces: TSTAT-10SI

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