Bryant T2-PAC01-A User manual
Installation Instructions
T2--PAC01--A, T2--NAC01--A
T2--PHP01--A, T2--NHP01--A
LEGACYtSERIES
THERMOSTATS
A07047 A07046
Legacy Series Legacy Series
Programmable Thermostat Non--Programmable Thermostat
Designed and Assembled in the U.S.A.
NOTE: Read the entire instruction manual before starting the installation.
US patents: US20060165149 A1, USD582803 SI, USD582802 SI
1
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS 2................................
INSTALLATION CONSIDERATIONS 4..........................
INSTALLATION 5...........................................
Step 1 — Thermostat Location 5...............................
Step 2 — Install Thermostat 5..................................
Step 3 — Set Thermostat Configuration 10.......................
Step 4 — Check Thermostat Operation 18........................
FEATURES AND ACCESSORIES 20............................
OPERATIONAL AND CONNECTION INFORMATION 22..........
WIRING DIAGRAMS 25......................................
THERMOSTAT CONFIGURATION RECORD 32..................
2
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,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.
3
INTRODUCTION
Bryant’s LegacytSeries programmable thermostats are wall--mounted,
low--voltage thermostats which maintain room temperature by controlling the
operation of a heating and/or air conditioning system. Both heat pump and air
conditioner models are available, each in programmable and non--programmable
versions. A variety of features are provided including battery operation, separate
heating and cooling setpoints, auto changeover, keypad lockout, backlighting, and
built--in installer test. Programming features include 7--day (all days the same) and
5/2 (Mon--Fri and Sat--Sun) with 2 or 4 periods per day.
This Installation Instruction covers installation, configuration, and start--up of all
four versions of the Legacy Series line of thermostats. For operational details,
consult the Owner’s Manual for the specific thermostat you are installing.
4
INSTALLATION CONSIDERATIONS
Models
There are four models in the Legacy Series: programmable and non--programmable, AC
and HP. Models T2--PAC01--A and T2--NAC01--A are designed for AC systems,
controlling one stage of cooling and one stage of heating. They will not operate a heat
pump. Models T2--PHP01--A and T2--NHP01--A are designed for HP systems,
controlling two stages of cooling and three stages of heating. They can be converted to
AC operation. Select the appropriate model for the intended application.
Power
All Legacy Series models are dual powered. They can operate from batteries or
24VAC power. Operation from 24VAC is preferred if available. Battery operation is
used when there are not enough wires to support 24VAC operation or when
“armchair programming” is desired. For an AC system, up to six wires are needed
for 24VAC operation and one less wire for battery operation. For a HP system, up to
seven wires are needed for 24VAC operation and and one less wire is sufficient for
battery operation. For heat only operation with batteries, only two wires are
required. When battery operation is used, the C terminal does not need to be
connected.
Provision is also made for separate heating and cooling transformers via separable Rc
and Rh terminals which are connected via factory--installed jumper wire.
5
INSTALLATION
Installation Notes:
SThe maximum wire size to be used in the installation is 22AWG
(0.50mm2)with 0.8mm insulation
SNo part of the control should be installed directly outdoors or in a cabin-
et outdoors
SThe control assembly should be mounted before wires are attached
Step 1 — Thermostat Location
SApproximately 5 ft (1.5m) from floor.
SClose to or in a frequently used room, preferably on an inside partition-
ing wall.
SOn a section of wall without pipes or duct work.
Thermostat should NOT be mounted
SClose to a window, on an outside wall, or next to a door leading to the
outside.
SExposed to direct light or heat from the sun, a lamp, fireplace, or other
temperature--radiating objects which could cause a false reading.
SClose to or in direct airflow from supply registers and return--air re-
gisters.
SIn areas with poor air circulation, such as behind a door or in an alcove.
6
Step 2 — Install Thermostat
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury or
death.
Before installing thermostat, turn off all power to equipment. There
may be more than one power disconnect.
!WARNING
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 the wall.
c. As each wire is disconnected, record wire color and terminal marking.
d. Discard or recycle old thermostat.
ENVIRONMENTAL HAZARD
Failure to follow this caution may result in environmental damage.
Mercury is a hazardous waste. Federal regulations require that
Mercury be disposed of properly.
CAUTION
!
3. Open thermostat (mounting base) to expose mounting holes. The base can
be removed to simplify mounting. Press the thumb release at the top of the
7
thermostat and snap apart carefully to separate mounting base from re-
mainder of thermostat.
4. Route thermostat wires through large 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 four mounting holes. To avoid unin-
tended bending of wall plate plastic, all four screws and anchors must be used.
See Fig. 1.
A07153
Fig. 1 -- Backplate Mounting
5. Drill four 3/16--in. mounting holes in wall where marked.
6. Secure mounting base to wall with four screws and anchors provided. To
avoid unintended bending of wall plate plastic, all four screws and anchors must
be used. Make sure all wires extend through hole in mounting base.
8
7. Adjust length and routing of each wire to reach proper terminal and con-
nector block on mounting base with 1/4--in. (6 mm) of extra wire. Strip only
1/4 in. of insulation from each wire to prevent adjacent wires from shorting
together when connected. See Fig. 2.
A07155
Fig. 2 -- Secure Wires to Terminal Strip
8. Match and connect equipment wires to proper terminals of the connector blocks
(see Fig. 3). If there are separate 24VAC transformers, one in the indoor unit
and one in the outdoor unit, connect the common of each to the C terminal.
Remove factory--installed jumper wire from Rc and Rh terminals. Connect the
R from the indoor unit to the Rh terminal. Connect the R from the outdoor unit
to the Rc terminal. Then the W signal is taken from the Rh power and the Y1,
Y/Y2, G and O signals are taken from the Rc power.
This manual suits for next models
10
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