Bryant T2SNHP01, T2SNAC01 User Manual

T2SNAC01, T2SNHP01
NON--PROGRAMMABLE THERMOSTAT

Installation Instructions

Models

There are 2 different models. The 5th and 6th letters of the part
number indicate the model. These 2 letters also 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.
Use each only for its intended purpose. See Table 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.

A08148

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
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, 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.

Power

Note that all thermostats are dual powered where batteries can be
installed or in the presence of R and C (24vac) are not required.
Two AA batteries are furnished with the product.

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 a lamp, sun, fireplace, or

other temperature--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.

Select Model

AC Model

(1--stage cool, 1--stage heat) is to be used for single stage heating
and/or cooling applications only.

HP Model

(1--stage cool, 2--stage heat) can be used with a single--speed heat
pump (HP), or an air conditioner (AC) with a 2--stage furnace or
fan coil. Software Option 5 selects HP/AC operation. This
thermostat comes configured from the factory as a heat pump
thermostat. Select AC in software Option 5 for AC operation.

INSTALLATION

Table 1 – Model Selection and Wiring Diagram Chart

OUTDOOR UNIT

1--- Stage Furnace Model AC See Fig. --­2--- Stage Furnace Model AC See Fig. Model HP See Fig. ---

Typic al Fa n C oil Model AC See Fig. Model HP See Fig. Model HP See Fig.

V a r i a b l e --- S p e e d F a n C oi l (F K 4D ,

FV4, 40FK)

Model AC See Fig. Model HP See Fig. Model HP See Fig.

Install Thermostat

!

WARNING

ELECTRICAL OPERATION HAZARD

Failure to follow this warning could result in personal injury

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or death.

Before installing, modifying, or servicing system, main
electrical disconnect switch must be in the OFF position. There
may be more than 1 disconnect switch. Lock out and tag
switch with a suitable warning label.

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, 1 at a time.

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

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

terminal marking.

d. Discard or recycle old thermostat.

NOTE: Mercury is a hazardous waste and MUST be disposed of
properly.

3. Open thermostat (mounting base) to expose mounting
holes. The base can be removed to simplify mounting. Snap
apart carefully to separate mounting base from remainder of
thermostat.

NOTE: If thermostat will not separate, insert a small screwdriver
into top slots for ease of opening.

4. Route thermostat wires through large hole in mounting
base. Level mounting base against wall (for aesthetic value
only -- thermostat need not be leveled for proper operation)
and mark wall through 2 mounting holes.

5. Drill two 3/16” (5mm) mounting holes in wall where
marked.

6. Secure mounting base to wall with 2 anchors and screws
provided, (additional anchoring holes available for more se­cure mounting if needed) making sure all wires extend
through hole in mounting base.

7. Adjust length and routing of each wire to reach proper ter­minal and connector block on mounting base with 1/4”
(6mm) of extra wire. Strip only 1/4” (6mm) of insulation
from each wire to prevent adjacent wires from shorting
together when connected.

8. Match and connect equipment wires to proper terminals of
the connector blocks. (See Table 1.)

AIR CONDITIONER

1 Speed

ELECTRICAL OPERATION HAZARD

Failure to follow this caution may result in equipment damage
or improper operation.

Improper wiring or installation may damage the thermostat
Check to make sure wiring is correct before proceeding with
installation or turning on unit.

10. Snap case back together.

11. Close thermostat assembly making sure pins on back of

12. Turn ON power to unit.

NOTE: If a common wire has not been connected, two AA
batteries must be used to power the thermostat.

Make sure the customer is informed about changing the batteries
every 12 months, if a common wire is not available.

If a common wire is connected, then batteries are not needed for
any reason. Batteries may be installed if desired but the thermostat
will not draw power from them.

Set Thermostat Configuration

Configuration options are intended to be selected at installation and
are normally not modified by the home owner. These options are
not discussed in the Homeowner’s Guide and therefore must be
made as part of the installation. A special procedure allows entry
into the configuration mode. The thermostat will automatically exit
this mode if no button is pressed for 3 minutes. While in the
configuration mode, up to 14 option choices can be made:

Option 01: Anticipator setting

Option 02: Clean filter setting
Option 03: Fahrenheit or Celsius selection

Option 04: Enable fan (G) on with W output
Option 05: HP / AC
Option 07: Enable zoning

Option 10: O (reversing valve) ON with Heat or Cool (present on
Heat Pump models only)

Option 13: Room temperature offset adjustment
Option 15: Enable AUTO mode

Option 18: Backlight Configuration
Option 19: Equipment Present
Option 21: Keypad Lockout

An explanation for each of these and how to enter the
configuration mode follows.

HEAT PUMP

1 Speed

!

CAUTION

9. Push any excess wire into wall and against mounting base.
Seal hole in wall to prevent air leaks. Leaks can affect
operation.

circuit board align with sockets in connector.

2

To enter the configuration mode:

To enter Configuration Mode, hold the FAN button down for
approximately 15 seconds. After the 15 second period, Option
“01” will appear in the display and the SERVICE icon will be
turned on.

NOTE: If the FAN button is pressed again or if no button is
pressed for 3 minutes, the thermostat will exit the configuration
mode and return to normal operation. To reenter the configuration
mode, the FAN button must be pressed and held for 15 seconds
again.

While in configuration mode:

The display is used to show both the option number and the
selection choice within that option.

OPTION 01 -- ANTICIPATOR ADJUSTMENT

This adjustment controls the sensitivity and c ycle rate of the
thermostat. Higher numbers decrease the sensitivity and slow the
cycle rate. Lower numbers increase sensitivity and increase cycle
rate. However, a limiting feature will not allow more than 6
equipment cycles per hour, regardless of setting. Values can range
from 1 to 9. Factory default setting is 3. This default selection will
provide optimum performance in nearly all installations. Try it
first. Do not change setting unless there is evidence of need to do
so.

Unlike conventional anticipators, this setting is not to be
determined by current draw. There is no need to measure, know, or
compensate for current. There is also no droop with this
thermostat, regardless of anticipator setting. This adjustment
controls only sensitivity and cycle rate up to the maximum of 6
cycles per hour.

To Adju st:

1. Enter configuration mode (if not already there).

2. Use up and down buttons to display Option 01. The SET
icon should be off.

3. Press MODE button once. The SET icon will come on. The
display now shows Option 01 setting.

4. Use up and down buttons to move between the available
Option 01 values of 1 to 9. Factory default is 3.

5. Press MODE button again to return to Option 01. The SET
icon will now be off.

6. Use up and down buttons to select another Option, or press
FAN button to exit configuration mode.

OPTION 02 -- CLEAN FILTER TIMER

This option selects the number of hours of blower operation
(heating, cooling, or fan) before SERVICE FILTER icon is
displayed. With OF selected, the icon will never come on,
disabling this feature. Time selection can be from 400 to 3600
hours by selecting numbers 1 through 9. (Time is 400 X number
selected.) Factory default is 2 (800 hours). Recommended
selections are: disposable filter 800 hr, media filter 1200 to 1600
hr, or electronic air cleaner 1600 to 2400 hr of blower operation.

To Adju st:

1. Enter configuration mode (if not already there).

2. Use up and down buttons to display Option 02. The SET
icon should be off.

3. Press MODE button once. The SET icon will come on. The
display now shows Option 02 setting.

4. Use up and down buttons to move between the available
Option 02 values of OF and 1 through 9. Factory default is

2.

5. Press MODE button again to return to Option 02. The SET
icon will now be off.

6. Use up and down buttons to select another Option, or press
FAN button to exit configuration mode.

OPTION 03 -- FAHRENHEIT/CELSIUS SELECTION

This option selects Fahrenheit or Celsius operation.

To Select:

1. Enter configuration mode (if not already there).

2. Use up and down buttons to display Option 03. The SET
icon should be off.

3. Press MODE button once. The SET icon will come on. The
display now shows Option 03 setting.

4. Use up and down buttons to move between the available
Option 03 choices of F (Fahrenheit) or C (Celsius). Factory
default is F.

5. Press MODE button again to return to Option 03. The SET
icon will now be off.

6. Use up and down buttons to select another Option, or press
FAN button to exit configuration mode.

OPTION 04 -- G (FAN) ON WITH W OUTPUT

This selection determines whether the G (fan) output is to be ON or
OFF when any 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 to turn on the
blower. In this case, select On. Factory default is OF (off).

To Select:

1. Enter configuration mode (if not already there).

2. Use up and down buttons to display Option 04. The SET
icon should be off.

3. Press MODE button once. The SET icon will come on. The
display now shows Option 04 setting.

4. Use up and down buttons to move between available
Option 04 choices of ON or OF . Factory default is OF.

5. Press MODE button again to return to Option 04. The SET
icon will now be off.

6. Use up and down buttons to select another Option, or press
FAN button to exit configuration mode.

OPTION 05 -- HP / AC CONFIGURATION

This configuration is available on HP models only. Selecting AC
allows the installer to use a HP thermostat in an air conditioner
application.

To Select:

1. Enter configuration mode (if not already there).

2. Use up and down buttons to display Option 05. The SET
icon should be off.

3. Press MODE button once. The SET icon will come on. The
display now shows Option 05 setting.

4. Use up and down buttons to move between available
Option 05 choices of AC or HP. Factory default is HP .

5. Press MODE button again to return to Option 05. The SET
icon will now be off.

6. Use up and down buttons to select another Option, or press
FAN button to exit configuration mode.

OPTION 07 -- ZONING ON/OFF CONFIGURATION

This selection enables or defeats cycle timer, the staging timer, and
the compressor timeguard. (See Operational Information for
details.) These timers MUST be enabled (zoning OFF) for normal
operation and disabled (zoning ON) for zoning applications.

In zoning applications, the zone control center performs these
timing functions. Factory default is OF.

To Select:

1. Enter configuration mode (if not already there).

2. Use up and down buttons to display Option 07. The SET
icon should be off.

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