Bryant T1-NHP, T1-NAC User Manual

T1--NAC
T1--NHP
LEGACY LINE--RNC
NON--PROGRAMMABLE THERMOSTAT

Installation Instructions

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

PAGE

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

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

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

INSTALLATION 1....................................

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

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................................

SAFETY CONSIDERAT IONS

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
installation 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,andCAUTION.

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.

INSTALLATION CONSIDERATIONS

Air Conditioner Model

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.

Heat Pump Model

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.

INSTALLATION

Step 1 — Thermostat Location

Thermostat should be mounted:

S Approximately 5 ft (1.5m) from floor.
S Close to or in a frequently used room, preferably on an

inside partitioning wall.

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.

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.

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

or in an alcove.

Step 2 — Install Thermostat

!

WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury
or death.

Before installing thermostat, turn off all power to unit. There
may be more than 1 disconnect.

1. Turn OFF all power to unit.

2. If an existing thermostat is being replaced:

a. Remove existing thermostat from wall.

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

T1--NAC / T1--NHP

Failure to follow this caution may result in environmental
damage.

Mercury is a hazardous waste. Federal regulations require that
Mercury be disposed of properly.

3. Separate front and back (mounting base) assembly of
thermostat.

4. 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.

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

6. Secure mounting base to wall with 2 anchors and screws
provided making sure all wires extend through hole in
plastic.

7. 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.

8. Push any excess wire back into wall. Seal hole in wall to
prevent air leaks. Leaks can affect thermostat operation.
Any excess wire left inside thermostat casing may also
affect thermostat operation by interfering with airflow
across the temperature sensor.

9. Snap thermostat together making sure terminal block
connector aligns, and assembly is secure.

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).

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.

Option 01 -- Equipment Type
Option 03 -- Fahrenheit or Centigrade operation

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

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

on Heat Pump model only)

Option 13 -- Room temperature offset adjustment
Note that not all configuration option numbers are used in this

product.

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.

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.

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.

Option 01 — Equipment Type

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

with AC thermostat: AC or PC

Meanings:

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
compressortoturnonimmediatelywhenademandis
established.

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.

Option 03 — Fahrenheit/Centigrade Selection

This selection operates the thermostat in either Fahrenheit or
Centigrade. Factory default is F .

Available Selection:

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
(off).

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.

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