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Programmable Thermostats

Installation, Start-Up, and Operating Instructions

NOTE:

Read the entire instruction manual before starting the

installation.

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. All of
the thermostats allow up to 4 time/temperature settings to be
programmed per 24 hr period and store programs for 7 indepen-
dent 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 have 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 last 2 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.)

INSTALLATION

Step 1—Thermostat Location

Thermostat should be mounted:

Approximately 5 ft (1.5m) from floor.

Close to or in a frequently used room, preferably on an inside
partitioning wall.

On a section of wall without pipes or duct work.

Thermostat should NOT be mounted:

Close to a window, on an outside wall, or next to a door leading
to the outside.

Exposed to direct light and heat from a lamp, sun, fireplace, or
other temperature-radiating object which may cause a false
reading.

Close to or in direct airflow from supply registers and return-air
grilles.

In areas with poor air circulation, such as behind a door or in
an alcove.

Step 2—Set Dip Switches

There are 4 dip switches on the back of the circuit board which
must be set depending on the application. Check each switch for
correct position.

Switch A - Zoning Select (Active on all models)

Set switch A to ON for zoning, OFF for non-zoned installations.

Do not set switch A to ON in a non-zoning application, as
equipment will cycle excessively. When switch A is set to OFF,
equipment is limited to 4 cycles per hr and a 5-minute timeguard
protects the compressor.

Switch B - Setback Recovery (Active on all models)

Set switch B to ON for normal recovery, OFF for smart recovery.

Normal recovery adjusts the desired temperature at the pro-
grammed time. Smart recovery, which is active in heating mode
only, starts earlier and adjusts the desired temperature slowly so
that room temperature will arrive at the programmed temperature
at the programmed time.

Switch C - HP/AC Select (Active on HP and 2S models only)

Set switch C to ON for AC only, OFF for HP applications.

Fig. 1—Carrier Programmable Thermostat

A94134

®

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. 92-33TS-TA1C

Printed in U.S.A.

Form TSTAT-1SI

Pg 1

9-94

Replaces: New

Содержание A94134

Страница 1: ...ly 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 INSTALLATION Step 1 Thermostat Location Thermostat should be mounted Approximately 5 ft 1 5m fro...

Страница 2: ... wires to the correct terminals of the thermostat connector See Table 1 and Fig 2 through 14 Both R and C must be connected for proper thermostat operation Improper wiring or installation may damage the thermostat Check to make sure wiring is correct before proceeding with installation or turning on unit 9 Push excess wiring into wall Seal hole in wall to prevent drafts 10 Snap hinge back together...

Страница 3: ...ed Operation 1 Press FAN button to select AUTO or ON position Fan annunciator displays current selection 2 Press MODE button to select OFF HEAT COOL AUTO Heat pumps will also have an EHEAT mode Mode annun ciator displays current selection 3 Press up or down buttons to select desired temperature 4 If daily cycles are to be programmed now refer to Homeown er s Guide for programming instructions 5 If...

Страница 4: ... B L S1 S2 C Y C MODEL AC THERMOSTAT TYPICAL FAN COIL SINGLE SPEED AIR CONDITIONER See notes 3 and 7 W2 Y Y2 W3 Y1 O L E Fig 6 Single Speed Air Conditioner with Typical Fan Coil Dual Stage Heat Control A94274 24 VAC HOT FAN HEAT STAGE 1 COOL STAGE 1 HEAT STAGE 2 N A R G W W1 Y Y2 O W2 Y1 W2 R G 24 VAC COMM N A N A OUTDOOR SENSOR CONNECTION C B L S1 S2 C Y C MODEL HP THERMOSTAT TYPICAL FAN COIL SIN...

Страница 5: ...T TWO STAGE OR VARIABLE SPEED FURNACE TWO SPEED AIR CONDITIONER See note 5 R Y1 R G L W W1 Y Y2 W2 Fig 10 Two Speed Air Conditioner with Typical Fan Coil A94223 24 VAC HOT FAN HEAT STAGE 1 COOL STAGE 2 HEAT STAGE 2 COOL STAGE 1 R G W W1 Y Y2 O W2 Y1 W2 R G 24 VAC COMM N A TROUBLE OUTDOOR SENSOR CONNECTION C B L S1 S2 C Y2 C MODEL 2S THERMOSTAT TYPICAL FAN COIL TWO SPEED AIR CONDITIONER See notes 5...

Страница 6: ...fer to furnace instructions for proper setup 2 On HP models 1 stage cool 2 stage heat O W2 can control second stage heat Refer to indoor unit instructions for proper setup 3 On AC models 1 stage cool 1 stage heat O W2 is not connected Thermostat can only control 1 stage of heat 4 Refer to outdoor unit installation instructions for latent kit requirements 5 O W2 can control second stage heat Refer ...

Страница 7: ...emain for 15 seconds after proper line voltage is restored If the AC line voltage disappears completely the display will immediately go blank Energy Savings Icon This icon is displayed under these conditions 1 speed HP heating without auxiliary heat 2 speed HP on LO or HI speed heating without auxiliary heat 2 speed HP or AC on LO speed cooling Smart Recovery With Smart Recovery selected the trans...

Страница 8: ...6231 49008c 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 92 33TS TA1C Printed in U S A Form TSTAT 1SI Pg 8 9 94 Replaces New ...

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