Bryant T1 NAC Thermostat User Manual

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T1 -- NAC

T1 -- NHP

LEGACY LINE -- RNC

NON -- PROGRAMMABLE THERMOSTAT

Installation Instructions

Follow all safety codes. Wear safety glasses, protective clothing,

and work gloves. Have a fire extinguisher available. Read these

instructions thoroughly and follow all warnings or cautions

included in literature and attached to the unit. Consult local

building codes and the current editions of the National Electrical

Code (NEC) NFPA 70.

Designed and Assembled

in the USA.

US patents: US20060165149 A1, USD578026 SI, US6205041 B1

In Canada, refer to the current editions of the Canadian Electrical

Code CSA C22.1.

Recognize safety information. This is the safety -- alert symbol

When you see this symbol on the unit and in the instructions or

manuals, be alert to the potential for personal injury.

Understand the signal words DANGER, WARNING, and

CAUTION. These words are used with the safety -- alert symbol.

DANGER 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 may result in minor personal

injury or product and property damage. NOTE is used to highlight

suggestions which will result in enhanced installation, reliability, or

operation.

INTRODUCTION

The Legacy Line -- RNC Series thermostat is an electronic 24VAC,

non -- programmable, manual changeover wall mount thermostat.

This thermostat uses a single setpoint to maintain and control room

temperature in both the heating and air conditioning modes. The

thermostat is designed to maintain +/ -- 2_F accuracy. No batteries

are required; temperature, fan, mode, and installer configuration

settings are preserved with power off.

A07110

L e g a c y L i n e --- R N C N o n --- P r o g r a m m a b l e T h e r m o s t a t

NOTE: Read the entire instruction manual before starting the

installation.

TABLE OF CONTENTS

INSTALLATION CONSIDERATIONS

Air Conditioner Model

PAGE

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . 1

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

INSTALLATION CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Step 1 — Thermostat Location . . . . . . . . . . . . . . . . . . . . . . . . 2

Step 2— Install Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Step 3 — Set Thermostat Configuration . . . . . . . . . . . . . . . . . 2

Step 4 — Thermostat Operation . . . . . . . . . . . . . . . . . . . . . . . . 3

Step 5 — Check Thermostat Operation . . . . . . . . . . . . . . . . . . 3

WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

T1 -- NAC, Legacy Line -- RNC Series Model air conditioner

thermostat, may be wired with or without connecting a common

wire between the indoor equipment and the thermostat. However, it

is recommended to use a common wire whenever possible.

Without a common wire this thermostat becomes “power stealing.”

This means it will need to steal a small amount of power from the

equipment to which it is connected.

NOTE: Not all HVAC equipment is compatible with power

stealing type thermostats. All Bryant equipment is directly

compatible with this thermostat except the Thermostat Conversion

Kit, Part #TSTATXXCNV10. For all non -- Bryant equipment,

consult the system equipment Installation Instructions before

applying this thermostat in a power stealing manner.

SAFETY CONSIDERATIONS

Heat Pump Model

Improper installation, adjustment, alteration, service, maintenance,

or use can cause explosion, fire, electrical shock, or other

conditions which may cause death, personal injury, or property

damage. Consult a qualified installer, service agency, or your

distributor or branch for information or assistance. The qualified

installer or agency muse use factory -- authorized kits or accessories

when modifying this product. Refer to the individual instructions

packaged with the kits or accessories when installing.

T1 -- NHP, Legacy Line -- RNC Series Model heat pump thermostat,

is compatible with all Bryant heat pump systems. It is NOT power

stealing and MUST have both the R and C terminals connected to

operate properly. This thermostat uses a green LED to indicate

auxiliary heat and emergency heat operation.

Any excess wire left inside thermostat casing may also af-

fect thermostat operation by interfering with airflow across

the temperature sensor.

INSTALLATION

Step 1 — Thermostat Location

Thermostat should be mounted:

S Approximately 5 ft (1.5m) from floor.

. Snap thermostat together making sure terminal block con-

nector aligns, and assembly is secure.

S Close to or in a frequently used room, preferably on an inside

partitioning wall.

10. Turn on power to unit.

On power up, depending on the thermostat model being used, the

LCD readout will display either, AC or PC for air conditioner

model (1 -- stage heat/1 -- stage cool), or HP or PH for heat pump

model (2 -- stage heat/1 -- stage cool).

S On a section of wall without pipes or duct work.

Thermostat should NOT be mounted:

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

to the outside.

Step 3 — Set Thermostat Configuration

Configuration options allow the installer to configure the

thermostat for a particular installation. These selections are

intended to be made at installation and normally are not modified

by the homeowner. Below is a list of available options followed by

a description of each one.

S Exposed to direct light and heat from the sun, a lamp, fireplace,

or other heat -- radiating object which may cause a false reading.

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

grilles.

Option 01 -- Equipment Type

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

alcove.

Option 03 -- Fahrenheit or Centigrade operation

Option 04 -- Enable fan (G) ON with heat (W)

Step 2 — Install Thermostat

Option 10 -- O (reversing valve) On with Heat or Cool (present

on Heat Pump model only)

WARNING

Option 13 -- Room temperature offset adjustment

Note that not all configuration option numbers are used in this

product.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury

or death.

To Enter The Configuration Mode:

Press and hold FAN button for approximately 10 sec until room

temperature disappears and the display reads “01”. You are now in

configuration mode.

Before installing thermostat, turn off all power to unit. There

may be more than 1 disconnect.

NOTE: If FAN button is pressed again, or if no button is pressed

for 3 minutes, the thermostat will exit configuration mode and

return to normal operation. To re -- enter configuration mode, the

FAN button must be pressed and held for 10 sec again.

. Turn OFF all power to unit.

. If an existing thermostat is being replaced:

a. Remove existing thermostat from wall.

While in the configuration mode, the temperature display is used to

show both the option number and the selected choice within each

option. Each press of the H/C button alternates between the option

number and the selection within that option. When the

configuration mode is first entered, option 01 is displayed. The up

and down buttons now move between the available option

numbers. Once an option number is selected, press the H/C button

once to display the currently selected choice within that option.

The up and down buttons now move between the available choices

within that option. After the new choice is made, press the H/C

button again to return to the option number display. When finished

with option selections, press FAN button once to exit the

configuration mode.

b. Disconnect wires from existing thermostat, one at a

time. Be careful not to allow wires to fall back into wall.

c. As each wire is disconnected, record wire color and

terminal marking.

d. Discard or recycle old thermostat.

CAUTION

ENVIRONMENTAL HAZARD

Failure to follow this caution may result in environmental

damage.

Option 01 — Equipment Type

Selections: with HP thermostat: HP, AC, PH, or PC

with AC thermostat: AC or PC

Meanings:

Mercury is a hazardous waste. Federal regulations require that

Mercury be disposed of properly.

. Separate front and back (mounting base) assembly of ther-

mostat.

. Route thermostat wires through hole in mounting base.

Level mounting base against wall (for aesthetic value only,

thermostat need not be level for proper operation) and mark

wall through 2 mounting holes.

PH or PC selects PTAC units (Packaged Terminal Air

Conditioners) which are used in motel rooms and other

rented spaces. When this option is selected, the display

shows only the setpoint, not the room temperature. Also

the compressor timeguard is disabled, allowing the

compressor to turn on immediately when a demand is

established.

. Drill two 3/16 -- in. mounting holes in wall where marked.

. Secure mounting base to wall with 2 anchors and screws

provided making sure all wires extend through hole in

plastic.

HP or PH controls 1 speed heat pump with 1 stage of aux heat.

AC or PC controls 1 speed air conditioner with one stage of heat.

Note that this option allows a HP thermostat to be converted to

control an AC system.

. Strip 1/4 in. insulation from thermostat wire and adjust

length to reach terminal block connector on mounting base.

Match and connect proper wiring in accordance with wiring

diagrams.

. Push any excess wire back into wall. Seal hole in wall to

prevent air leaks. Leaks can affect thermostat operation.

Option 03 — Fahrenheit/Centigrade Selection

This selection operates the thermostat in either Fahrenheit or

Centigrade. Factory default is F.

Available Selection:

output is turned on for 9 minutes and then satisfies, it cannot turn

back on for another 6 minutes regardless of demand). However,

pressing UP and FAN buttons simultaneously or changing the

setpoint will override the timer for 1 cycle.

Use UP and DOWN buttons to change between F and C.

Option 04 — G (fan) ON with W (Heat) Selection

This selection determines whether G (fan) output is to be ON or

OFF when W (furnace or strip heat) output is ON. Most furnaces

and fan coils manage their own blowers and do not require a

separate G signal. For these applications, select OFF. Some

auxiliary heaters require a separate G signal from the thermostat to

turn on the blower. In this case, select ON. Factory default is OF

Minimum on Timer

Once the equipment has turned on, it will remain on for a

minimum of 3 minutes regardless of demand. However, the

equipment can turn off in less than 3 minutes if a change in

setpoint or a change in mode occurs.

Staging Timer

(off).

If the thermostat is a heat pump model, it has 2 -- stage heat

capability. With HP operation, there is a 15 -- minute delay between

the first and second stages of heat. The Y output will energize first,

then 15 minutes later, W is allowed to come on if the thermostat

determines it is not satisfying the demand.

Available Selection:

Use UP and DOWN buttons to change between ON and OFF.

Option 10 — O (reversing valve) On with Heat or

Cool Selection

This selection is only available on heat pump model thermostats.

This selection determines whether the reversing valve is energized

in the heating or cooling mode. Factory default is C.

However, if the heating demand is greater than 5_F, there will be

only a 30 second delay before bringing on W.

Auxiliary Heat Indicator

Available Selection:

A green LED indicates the use of auxiliary heat or emergency heat.

Error Messages

Use UP and DOWN buttons to change between H and C.

Option 13 — Room Temperature Offset Adjust-

ment

This option allows calibration (or deliberate miscalibration) of the

room temperature sensor. There are various reasons why

homeowners may want to have displayed temperature adjusted to a

higher or lower value. The selected number is the number of

degrees, plus or minus, which will be added to actual temperature.

“ -- -- ” (two dashes) will be displayed if the thermostat cannot

properly read room temperature. If “ -- -- ” appears, replace

thermostat.

E4 will be displayed if the thermostat has an internal memory

failure. If E4 appears, replace thermostat.

Step 5 — Check Thermostat Operation

Fan Operation

The numbers can range between -- 5 and +5. Factory default is 0.

. Press FAN button. This will start continuous fan operation.

FAN annunciator will turn on.

Available Selection:

Use UP and DOWN buttons to now move between -- 5 and +5 in

increments of 1.

2. Press FAN button again. This will stop continuous fan oper-

ation. FAN annunciator will turn off.

Step 4 — Thermostat Operation

Heating Operation

Temperature Display

1. Press H/C button until HEAT is displayed.

Thermostat will display room temperature until UP or DOWN

button is pressed. The word SET appears when these buttons are

pressed and the current setpoint is displayed. If no buttons are

pressed for 5 sec, the display will change back to show room

temperature.

2. Press UP button until LCD readout reads 3_F above room

temperature. Press UP and FAN buttons simultaneously to

defeat timers. Heating system should begin to operate im-

mediately.

3. For HP thermostats only, press H/C button until EMHT

(emergency heat) appears. Press UP and FAN buttons sim-

ultaneously to defeat timers. Emergency heating (W is ON,

Y is OFF) should begin immediately.

Timeguard Timer

A 5 -- minute timeguard is built into the thermostat immediately

upon power up, and any time the compressor turns off. The

compressor will not turn on until the timeguard has expired. The

timeguard affects only compressor operation. Pressing UP and

FAN buttons simultaneously will override the timeguard for 1

cycle. With PH or PC selected under Option 01, this timer is

defeated.

Cooling Operation

1. Press H/C button until COOL is displayed.

. Press DOWN button until LCD readout reads 3_F below

room temperature. Press UP and FAN buttons simultan-

eously to defeat timers. Cooling system should begin to op-

erate immediately.

Cycle Timer

In normal heating and cooling operation the thermostat will not

allow more than 4 equipment cycles per hour (or 1 cycle every 15

minutes). Both the Y and W outputs have a 15 -- minute timer that

starts counting down when the output is turned on, (e.g., if Y

Table 1 shows the thermostat outputs for each available stage of

heating or cooling. It may be useful in checkout or

troubleshooting.

Table 1 – Outputs

EQUIPMENT

CONFIGURATION

OPTION #1

THERMOSTAT

FACTORY

CONFIGURATION

COOL

STAGE 1

HEAT

STAGE 1

HEAT

STAGE 2

EM HEAT

AC, PC

HP, PH

RVS = C

AC, HP

Y, G

--- ---

Y, G, O / B

Y, G

Y, G, W

HP, PH

RVS = H

Y, G

Y, G, O / B

Y, G, W, O / B

WIRING DIAGRAMS

A06566

A06567

Fig. 1 -- A/C Thermostat Typical Installation

Fig. 2 -- HP Thermostat Typical Installation

E2012 Bryant Heating & Cooling Systems 7310 W. Morris St. Indianapolis, IN 46231

Edition Date: 05/12

Catalog No. IIT1 --- NAC --- 0 5

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

R e p l a ce s: IIT1 --- N A C --- 0 4

T1 -- NAC

T1 -- NHP

LEGACY LINE -- RNC

NON -- PROGRAMMABLE THERMOSTAT

Homeowner’s Guide

. To Select the Mode:

Designed and Assembled

in the USA.

Use the H/C button to move between the choices. OFF,

HEAT, COOL, or EMHT will appear on the display. EMHT

will only appear on heat pump models.

. To Select the Fan Operation:

Use the FAN button to move between continuous fan (in-

dicated by the FAN ON icon) and auto fan operation.

. To Read the Room Temperature:

The large display reads room temperature until a button is

pressed.

. To Adjust the Setpoint:

In normal operation, the large display shows room temper-

ature. At the first press of the UP or DOWN button, the

large display shows the current setpoint and the SET TEMP

icon is turned on. Further presses of the UP or DOWN but-

ton adjust the setpoint upward or downward. Five seconds

after the last button press, the display returns to the room

temperature and the SET TEMP icon turns off.

TROUBLESHOOTING

What if there is a green light on in the upper

corner of the display area?

This thermostat uses a green LED to indicate auxiliary heat and

emergency heat operation on the Heat Pump model. This green

light means one of two things.

A07110

L e g a c y L i n e --- R N C N o n --- P r o g r a m m a b l e T h e r m o s t a t

. Auxiliary Heat is on:

This light turns on automatically when the system determ-

ines that it’s too cold outside for your heat pump to heat the

house without help. So, it’s getting help from the electric

heaters.

NOTE: This indicator does not reflect a problem with your

system.

. Emergency Heat is on:

If the heat pump is not working properly, you can manually

select the emergency heat for extra help in heating. You’ll

know there’s a problem if the house can’t seem to get warm

when it’s cold outside.

You want to avoid using emergency heat, though, because

it’s the most expensive option. And, of course, if you sus-

pect a problem with your heat pump, call your heating and

cooling dealer immediately.

Bryant Heating & Cooling Systems

Limited Warranty for Thermostats

FOR WARRANTY SERVICE OR REPAIR:

Contact the installer or a Bryant dealer. You may be able to find the installer’s name on the equipment or in your Owner’s Packet. You can

also find a Bryant dealer online at www.bryant.com

For help, contact: Bryant Heating & Cooling Systems, Consumer Relations, P.O. Box 4808, Syracuse, New York 13221, Phone

-- 800 -- 428 -- 4326

PRODUCT REGISTRATION: You can register your product online at www.bryant.com.

Model Number_______________________________________________ Serial Number________________________________________________

Date of Installation____________________________________________ Installed by__________________________________________________

Name of Owner_______________________________________________ Address of Installation__________________________________________

Bryant Heating & Cooling Systems (hereinafter “Company”) warrants this product against failure due to defect in materials or workmanship

under normal use and maintenance as follows. All warranty periods begin on the date of original installation. If a part fails due to defect

during the applicable warranty period Company will provide a new or remanufactured part, at Company’s option, to replace the failed

defective part at no charge for the part. Alternatively, and at its option, the Company will provide a credit in the amount of the then factory

selling price for a new equivalent part toward the retail purchase price of a new Company product. Except as otherwise stated herein, those are

Company’s exclusive obligations under this warranty for a product failure. This limited warranty is subject to all provisions, conditions,

limitations and exclusions listed below and on the reverse (if any) of this document.

OWNER -- OCCUPIED, RESIDENTIAL APPLICATIONS

This warranty is to the original purchasing owner and is transferable only to the extent and as stated in the Warranty Conditions and below.

The warranty period in years, depending on the part and the claimant, is as shown in the chart below.

Limited Warranty (Years)

Product

Original Owner

10* (or 5)

Subsequent Owner

T6, T2, T1 Thermostats***

If properly registered within 90 days, otherwise 5 years (except in California and Quebec and other jurisdictions that prohibit warranty benefits conditioned on registration,

registration is not required to obtain longer warranty periods). See Warranty Conditions below.

**Applies only to Thermostats. Active electronic finished good accessories, such as the optional ExP module, have different warranty terms. See product for details.

OTHER RESIDENTIAL APPLICATIONS (Apartments, Rental Properties, etc.)

The warranty period is five (5) years. The warranty is to the original owner only and is not transferable.

OTHER APPLICATIONS

The warranty is one (1) year on all such applications. The warranty is to the original owner only and is not transferable.

LEGAL REMEDIES: The owner must notify the Company in writing, by certified or registered letter to Bryant Heating & Cooling

Systems, Warranty Claims, P.O. Box 4808, Syracuse, New York 13221, of any defect or complaint with the product, stating the defect or

complaint and a specific request for repair, replacement, or other correction of the product under warranty, mailed at least thirty (30) days

before pursuing any legal rights or remedies.

Bryant Heating & Cooling Systems

THERMOSTAT LIMITED WARRANTY

WARRANTY CONDITIONS:

. To obtain the longer warranty periods as shown in the table under original owner, for the original purchaser, the product must be

properly registered at www.bryant.com within ninety (90) days of original installation. In jurisdictions where warranty terms condi-

tioned on registration are prohibited by law, registration is not required and the longer warranty period shown will be apply.

. Where a product is installed in a newly constructed home, the date of installation is the date the homeowner purchased the home from

the builder.

. If the date of original installation cannot be verified, then the warranty period begins ninety (90) days from the date of product manu-

facture (as indicated by the model and serial number). Proof of purchase may be required at time of service.

. The remainder of the first five years of warranty is freely transferable without registration.

. Product must be installed properly and by a licensed HVAC technician.

. The warranty applies only to products remaining in their original installation location.

. Installation, use, care, and maintenance must be normal and in accordance with instructions contained in the Installation Instructions,

Owner’s Manual and Company’s service information.

. Defective parts must be returned to the distributor through a registered servicing dealer for credit.

LIMITATIONS OF WARRANTIES: ALL IMPLIED WARRANTIES AND/OR CONDITIONS (INCLUDING IMPLIED

WARRANTIES OR CONDITIONS OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR USE OR PURPOSE) ARE

LIMITED TO THE DURATION OF THIS LIMITED WARRANTY. SOME STATES OR PROVINCES DO NOT ALLOW

LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY OR CONDITION LASTS, SO THE ABOVE MAY NOT APPLY TO

YOU. THE EXPRESS WARRANTIES MADE IN THIS WARRANTY ARE EXCLUSIVE AND MAY NOT BE ALTERED,

ENLARGED, OR CHANGED BY ANY DISTRIBUTOR, DEALER, OR OTHER PERSON, WHATSOEVER.

THIS WARRANTY DOES NOT COVER:

. Labor or other costs incurred for diagnosing, repairing, removing, installing, shipping, servicing or handling of either defective parts, or

replacement parts, or new units.

. Any product purchased over the Internet.

. Normal maintenance as outlined in the installation and servicing instructions or Owner’s Manual, including filter cleaning and/or replace-

ment and lubrication.

. Failure, damage or repairs from faulty installation, misapplication, abuse, improper servicing, unauthorized alteration or improper opera-

tion.

. Failure to start due to voltage conditions, blown fuses, open circuit breakers, or damages due to the inadequacy or interruption of electrical

service.

. Failure or damage due to floods, winds, fires, lightning, accidents, corrosive environments (rust, etc) or other conditions beyond the

control of Company.

. Parts not supplied or designated by Company, or damages resulting from their use.

. Products installed outside the U.S.A. or its territories and Canada.

. Electricity or fuel costs, or increases in electricity or fuel costs from any reason whatsoever, including additional or unusual use of supple-

mental electric heat.

0. Any cost to replace, refill or dispose of refrigerant, including the cost of refrigerant.

1. ANY SPECIAL, INDIRECT OR CONSEQUENTIAL PROPERTY OR COMMERCIAL DAMAGE OF ANY NATURE

WHATSOEVER. Some states or provinces do not allow the exclusion of incidental or consequential damages, so the above limitation

may not apply to you.

This Warranty gives you specific legal rights, and you may also have other rights which vary from state to state or province to province.

39004DP479

08/2011

E2012 Bryant Heating & Cooling Systems D 7310 W. Morris St. D Indianapolis, IN 46231

Edition Date: 05/12

Catalog No. IIT1 --- NAC --- 0 5

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

R e p l a ce s: IIT1 --- N A C --- 0 4

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