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T2--PAC,T2--NAC
T2--PHP,T2--NHP
LEGACYtSERIES
THERMOSTATS
InstallationInstructions
A07047 A07046
LegacySeries LegacySeries
ProgrammableThermostat Non--ProgrammableThermostat
DesignedandAssembledintheU.S.A.
NOTE: Read the entire instruction manual before starting the installation.
USpatents: US20060165149 A1,USD582803 SI,USD582802 SI
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TABLEOFCONTENTS PAGE SAFETY CONSIDERATIONS ................................ 2 INSTALLATION CONSIDERATIONS.......................... 4 INSTALLATION ........................................... 5 Step 1 —ThermostatLocation ............................... 5 Step 2 —InstallThermostat.................................. 5 Step3—SetThermostatConfiguration ....................... 10 Step 4 —Check ThermostatOperation ........................ 18 FEATURES AND ACCESSORIES............................ 20 OPERAT
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SAFETYCONSIDERATIONS 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 theequipment andin theinstruction manual,be alertto thepotential for personal injury. Understand the signal words DANGER, WARNING,and CAUTION.These words are u
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INTRODUCTION Bryant’s Legacyt Series 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 tes
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INSTALLATIONCONSIDERATIONS Models There are fourmodels in the Legacy Series: programmable and non--programmable,AC and HP. Models T2--PAC and T2--NAC are designed for AC systems, controlling one stage of cooling and one stage of heating. They will not operate a heat pump. Models T2--PHP and T2--NHP 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 modelforthe intended application. Power All Le
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INSTALLATION Step1—ThermostatLocation S Approximately5ft(1.5m)fromfloor. S Closeto orin afrequently used room,preferably on an insidepartition- ing wall. S Onasectionofwallwithoutpipesorductwork. Thermostat should NOT be mounted S Closetoawindow,onanoutsidewall,ornexttoadoorleadingtothe outside. S Exposedtodirectlightorheatfromthesun,alamp,fireplace,orother temperature--radiatingobjectswhichcouldcauseafalsereading. S Closetoorindirectairflowfromsupplyregistersandreturn--airre- gisters. S Inareas
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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. CAUTION ! ENVIRONMENTALHAZARD 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. Open thermostat (mounting base) to expose mounting holes. The base can be rem
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A07153 Fig.1 -- BackplateMounting 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 ofwallplate plastic,allfourscrewsand anchorsmust be used.Make sure all wires extend through hole in mounting base. 7
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7. Adjust length and routing of each wire to reach proper terminal and con- nectorblockonmountingbasewith 1/4--in.(6 mm)of extrawire.Striponly 1/4 in.of insulation from each wire to prevent adjacent wires from shorting together when connected.See Fig.2. A07155 Fig.2 -- SecureWiresto TerminalStrip 8. Match and connectequipment wiresto properterminals ofthe connectorblocks (see Fig. 3). If there are separate 24VAC transformers, one in the indoor unit and one in the outdoor unit, connect the common
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Rc - 24 VAC, from cooling equipment Rh - 24 VAC, from heating equipment W - Heating C - Common 24 VAC O/B - reversing valve G - Fan Y1 - Cooling Y/Y2 - Cooling High or Single Stage Low Stage A09271 Fig.3 -- TerminalDesignations CAUTION ! ELECTRICALOPERATIONHAZARD Failure to follow this caution may result in equipment damage or improper operation. Improperwiring orinstallation may damage thethermostat. Check to make sure wiring is correct before proceeding with installation or turning on unit. 9.
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A07158 Fig.4 -- AttachThermostatto Backplate 11. Close thermostat assembly making sure pins on back of circuit board align with sockets in connector. 12. Turn ON power to unit. When power is applied, all display icons are lit for 2 seconds to test the display. Following this, the equipment type for which the thermostat is configured is displayed for an additional 2 seconds. It will be one of HP, H2, AC, A2, H or C (see explanation under Step 3, Option 01 below). A HP thermostat configured to ope
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and their factory default settings. Notall numbersare used in the Legacy Seriesbecause not all options are available in this series -- and numbering is consistent across the T1, T2,and T6 thermostatlines. ConfigurationOptions -- Summary: Option 01 -- Equipment type Option 03* -- Fahrenheit/Centigrade Option 04 -- Fan (G) on with W output Option 07 -- Zoning Option 10 -- Reversing valve Option 11 -- Minimum deadband between heating and cooling setpoints Option 12 -- Smart Recovery (programmable m
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ToEntertheConfigurationMode: Press and hold the FAN key for about 10 seconds until the display changes so that only two pairs of digits are showing. The left (programmable version) or the large upper (non--programmable version) display shows the configuration number and the right (programmable version) or small lower (non--programmable version) shows the configuration setting. Configuration number will be flashing which means it can be adjusted using the UPand DOWN keys.To cause the opposite pai
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Option03 -- Fahrenheit/Centigrade Selections: F= Fahrenheit — Default is Fahrenheit. C = Centigrade. Selects temperature measurement units. Option04 -- Fan(G)ONwithWoutput Selections: OF = G not energized with W — This is default. ON = G energized with W. This selection determines whether the fan (G) is to be ON or OFF when the W (furnace or strip heat) is ON. Furnaces and fan coils which manage their own blowers do not require a separate G signal. Some auxiliary heaters require a separate G sig
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H — Reversing valve output (O/W2/B) is energized when HEAT mode is selected. C — Reversing valve output (O/W2/B) is energized when COOL mode is selected. Default is C. Option11 -- MinimumDeadbandBetweenHeatingAndCooling Selections: 01 through 06 — Default is 02. Sets the minimum allowable number of degrees between heating and cooling setpoints. One setpoint will “push” the other to maintain this difference. Option12 -- SmartRecovery(programmablemodelonly) Selections: OF,30,60,90 — Default is 90.
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Option13 -- RoomAirTemperatureOffset Selections: --5to5_F—Defaultis0. This option selects the number of degrees F to be added to the displayed temperature to calibrate or deliberately miscalibrate the measured room temperature. Option15 -- AutoChangeoverAvailability Selections: ON—Thisisdefault. OF ON allows automatic changeover between heating and cooling as demand requires. OFmaintainseitherheating orcooling mode only.Auto changeoveris notavailable when H or C is selected under Option 1. Optio
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Option18 -- BacklightConfiguration Selections: ON, OF — Default is OF. When ON is selected and the thermostat is not battery operated a low level continuous display backlight is always on. With OF selected, the backlight is only on for a short time after the door is opened or a key is pressed. Continuous backlight is not available with battery operation. Option21 -- KeypadLockout Selections: ON, OF — Default is OF. With OF selected, the keypad cannot be locked. With ON selected the keypad will b
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Option26 -- MinimumCoolingSetpoint Selections: 52_Fto90_F—Defaultis52_F. Sets the lowest cooling setpoint available to the user. Option27 -- MaximumHeatingSetpoint Selections: 50_Fto88_F—Defaultis88_F. Sets the highest heating setpoint available to the user. Option99 -- ResettoFactoryDefaults Selection: See below — There is no default. Use this capability to reset the thermostat to “out of the box” conditions. NOTE: All configuration settings, program settings, clock, and day which have been man
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Step4—CheckThermostatOperation The Legacy Series thermostats have a built--in installer test capability. Use it to check thermostat and equipment operation without delays or setpoint adjustments to force heating or cooling. To enter the Installer Test mode, use the same process as is used to enter Installer Configuration,only hold the FAN key longer. More specifically, press and hold the FAN for about 15 seconds until the display reads In on the left and St on the right for the programmable mode
