Bryant Preferredt Series User manual

Installation Instructions
T6-PAC01-A, T6-PHP01-A,
T6- NAC01- A, T6- NHP01- A
PreferredtSeries
AC / HP Thermostat
A07045 A07044
Programmable Control Non- Programmable Control
NOTE: Read the entire instruction manual before starting the installation.
US patents: US7287709 B2, US20080147242 A1, USD582800 SI,
US20060165149 A1, US6956463 B2.

1
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS 1................................
INTRODUCTION 2..........................................
INSTALLATION CONSIDERATIONS 3..........................
INSTALLATION 6...........................................
SYSTEM START- UP AND CHECKOUT 39......................
OPERATIONAL INFORMATION 42............................
TROUBLESHOOTING 46.....................................
WIRING DIAGRAMS 50......................................
THERMOSTAT CONFIGURATION RECORD 59..................
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 AC/HP Control.
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.

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INTRODUCTION
Bryant’s 7-day, 5/2- day, 1-day programmable and non-programmable Preferredt
Series Thermostat Control is a wall- mounted, low- voltage temperature control in
either a single unit or a two- piece unit. In two-piece configuration, the relays are
located near the equipment and a two-wire connection is used between the Display
Module and the Equipment Control Module. Single- piece installation requires more
wiring and results in a higher profile. The Preferred Series Thermostat has no need
for batteries to store user-configured settings in memory. During power loss its
internal memory saves settings for unlimited time, and the clock continues to run
for at least 24 hours. An extension of Bryant’s proven line of thermostats; it
provides separate setpoints for heating and cooling.
In the control’s programmable configuration, different heating and cooling setpoints
and times are programmable for 4 periods per day or 2 periods per day.
Programming can be done for 7 days per week, 5/2 days per week, or 1 day. The
programmable Thermostat Control can also be user configured as a
non- programmable Thermostat Control.
The non- programmable Thermostat Control features Touch ’N’ Gotsettings for
quick and easy temperature change without complicated programming schedules.
And, its Touch ’N’ Go technology enables the user to switch between three
different user- configurable settings through intuitive buttons located just below the
display.

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INSTALLATION CONSIDERATIONS
Power
This control is powered by 24VAC only. It requires 24VAC (Rh and/or Rc and C
terminals) of the low- voltage transformer to be connected to it for proper operation.
It will not operate without these 2 connections. Rh and Rc are connected via PCB
breakout jumper. See Fig. 1. For applications using two 24VAC transformers, one in
the indoor unit and one in the outdoor unit, connect the common from each to the C
terminal. Connect R from the indoor unit to the Rh terminal. Connect R from the
outdoor unit to the Rc terminal. Then, break jumper on the circuit board. The W
signal is taken from the Rh power and the G signal is taken from the Rc power. If
thermostat has been installed in a two- transformer application that is later changed
to a single- transformer installation, installer must install a field supplied jumper
between Rc and Rh. Depending on the installation, up to 14 wires may be required.
Installation as two-piece unit is recommended. Only 2 wires are required for
connection between Display Module and Equipment Control Module. These two
wires (V+ and Vg) do not provide ordinary 24VAC. They carry a combination of
power and communications data that is unique to these products.

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A07052
Fig. 1 - PCB Breakout Jumper
Models
There are programmable and non-programmable models for all applications. They
can be configured for AC or HP installations, allowing it to be used in place of all
Bryant thermostats. Programmable thermostats may be configured as
non- programmable if user desires.
Outdoor Temperature Sensor
The outdoor air temperature sensor is not included with the AC/HP Control. It is
available as an accessory, part number TSTATBBSEN01-B. Optimum performance
is obtained when an outdoor temperature sensor is used with the AC/HP Control.
Plan installation so that 2 wires can be run from Equipment Control Module 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 dedicated sensor
wires may be used for its connection. Details are provided in sensor instructions.

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Remote Indoor Temperature Sensor
A remote temperature sensor may be used with the programmable heat pump and
programmable air conditioner thermostats where it is desirable to install the
thermostat in a limited access location while measuring the temperature in the
living space. The remote room sensor may be used as a stand alone or average with
local sensor.
Two- Piece Thermostat Configuration
The Preferred Series AC/HP Control can be installed in one of two configurations.
The control may be installed as a single-piece thermostat or it may be split into two
pieces and mounted in separate locations. As a single- piece unit, all required wiring
must be brought to the Equipment Control Module for connection to the terminal
strip. In two-piece configuration, the Display Module can be mounted in the living
space while the Equipment Control Module may be mounted near the indoor
furnace or fan coil. Connection from the display to the Equipment Control Module
requires only two wires. All other control wires are connected to the Equipment
Control Module from the HVAC equipment. This configuration results in a slimmer
display and locates the Equipment Control Module containing the switching relays
away from the main living space where relay clicking will not be heard.
The model numbers on the Display Module and the Equipment Control Module
(ECM) must match or unpredictable results may occur.
Two- wire pigtail replacement part number is TX-2WR- 05.
Wiring
For all wiring applications, use 22 AWG or larger wire. Continuous wire lengths
over 100 ft. (30.5 m) should use 20 AWG or larger. Wire lengths are not to exceed
250ft.(76m)perrun.

6
INSTALLATION
UNIT DAMAGE HAZARD
Failure to follow the recommended wiring practices could result in
damage to the wall control and personal property.
Improper wiring or installation may damage AC/HP Control. Check
to make sure wiring is correct before proceeding with installation or
turning on power.
CAUTION
!
Installation Notes:
SNo part of the control should be installed directly outdoors or in a cabin-
et outdoors.
SNever remove the thermostat board from the plastic housing. Doing so
could warp and damage the components on the board.
SThe control assembly should be mounted before wires are attached.
SDuring thermostat installation, provide sufficient excess wiring behind
the mounting plate. Coil the wiring, creating a service loop, and place in
mounting box or behind the wall to remove strain against the terminal
strip. See Fig. 2.

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A13295
Fig. 2 - Coil Excess Wiring
A07756
Fig. 3 - T6- PAC01- A / T6- PHP01- A Carton Contents

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Carton contains the following components. See Fig. 3 for programmable models or
Fig. 4 for non-programmable models:
1. Display Module
2. Stand-off for Equipment Control Module
3. Screws and pig tail
4. Equipment Control Module
A07757
Fig. 4 - T6- NAC / T6- NHP01- A Carton Contents
1. Display Module
2. Stand-off for Equipment Control Module
3. Screws and pig tail
4. Equipment Control Module
AC/HP Control Location
AC/HP Control should be mounted: