Bryant A07046, Installation Instructions Manual

Page 1: ...ns T2 PAC T2 NAC T2 PHP T2 NHP LEGACYt SERIES THERMOSTATS A07047 A07046 Legacy Series Legacy Series Programmable Thermostat Non Programmable Thermostat NOTE Read the entire instruction manual before starting the installation ...

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Page 3: ...ollow 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 Understa...

Page 4: ...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 startup of all four versions of the Legacy Series line of thermostats For operational details consult the Owner s Manual for the specific the...

Page 5: ...n 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 a factory installed jumper wire INSTALLATION Step 1 Thermostat Location 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 with...

Page 6: ...hermostat turn off all power to equipment There may be more than 1 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 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 o...

Page 7: ...ting holes The base can be removed to simplify mounting Press the thumb release at the top of the thermostat and snap apart carefully to separate mounting base from remainder 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 2 mounting holes See...

Page 8: ...ach 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 a...

Page 9: ...ment 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 CAUTION 9 Push any excess wire into wall and against mounting base Seal hole in wall to prevent air leaks Leaks can affect operation 10 Snap case back together Attach thermostat to backplate by inserting tab on botto...

Page 10: ...played for an additional 2 seconds It will be one of HP AC H PH PC or C see explanation under Step 3 Option 01 below A HP thermostat configured to operate an AC see Option 1 below will display AC An AC thermostat cannot display HP NOTE If a common wire has not been connected two AA batteries must be used to power the thermostat Step 3 Set Thermostat Configuration Configuration options enable the i...

Page 11: ... Zoning Option 10 Reversing valve Option 11 Minimum deadband between heating and cooling setpoints Option 12 Smart Recovery programmable models only Option 13 Room air temperature offset adjustment Option 15 Auto Changeover availability Option 16 Maximum cycles per hour Option 17 Time between equipment stages Option 18 Continuous backlighting Option 21 Keypad lockout Option 24 Programmable non pro...

Page 12: ...on mode press the FAN key If no key is pressed for 3 minutes the configuration mode will automatically exit returning the thermostat to normal operation Configuration Options Selection Option 01 Equipment type Selections with HP thermostat HP AC H C PH or PC with AC thermostat AC H C or PC PC and PH are only available on non programmable models Meanings PC or PH selects PTAC units Packaged Termina...

Page 13: ... 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 signal to operate the blower when W is applied Option 07 Zoning Selections OF non zoned system This ...

Page 14: ...n Heating And Cooling 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 Option 12 Smart Recovery programmable model only Selections OF 30 60 90 Default is 90 Smart Recovery OF means setpoints change immediately at a program schedule change Thirty 60 or 90 selects the...

Page 15: ...ating or cooling mode only Auto changeover is not available when PH PC H or C is selected under Option 1 Option 16 Maximum Cycles Per Hour Selections 2 4 or 6 Default is 4 The maximum cycle rate is limited by internal timers to the selected number of cycles per hour Selection of a higher number causes faster cycling resulting in more constant room temperature Option 17 Minimum Time Between Equipme...

Page 16: ...lt is OF With OF selected the keypad cannot be locked With ON selected the keypad will be locked and can be unlocked by simultaneously pressing the UP and DOWN keys for 5 seconds Once unlocked it will relock 2 minutes after the last keypad press A lock icon is displayed while it is locked Option 24 Programmable Non Programmable programmable model only Selections P nP Default is P This option is on...

Page 17: ...ection 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 manually entered will be lost When this option is selected the configuration number 99 will appear on the left and 10 will appear on the right To perform the reset first use the MODE key to make the 10 flash The...

Page 18: ...r emergency heat if this is a HP thermostat Selecting one of the available modes will immediately command the equipment to turn on in that mode It will run for 3 minutes and then return the mode to off With HP thermostats having 2 stages of heating the test will run for 3 minutes on each stage If the thermostat is programmable the clock display counts down from 180 seconds while each stage operate...

Page 19: ...lected for any programmed period To change these settings a temperature is first selected and then the key pressed and held similar to setting stations on a push button radio See Owner s Manual for details Clock programmable models only Without batteries the clock will continue to operate for 8 hours while power is removed With batteries the clock operates until the end of the battery life Batteri...

Page 20: ...ges from its normal operation view The large temperature display disappears so it will be available for other user functions If the door is left open for 3 minutes the display reverts to normal operation Mounting Options For those installations requiring it mounting hole locations for the programmable model are spaced to fit either a horizontal or vertical junction box Mounting hole locations for ...

Page 21: ... cooling the R connection can be separated into two connections one for each transformer This allows isolation between the two transformers to be preserved To separate Rc from Rh remove the factory supplied jumper between the Rc and Rh terminals The Rh terminal powers the W output The Rc terminal powers the Y G and O outputs O B Terminal On HP Thermostat Only This terminal is normally connected to...

Page 22: ...ed for one cycle by simultaneously pressing the FAN and UP keys Auto Changeover Timer To prevent unnecessary cycling between heating and cooling modes this timer prevents a changeover to the opposite mode until a demand exists in the opposite mode for 20 minutes It is defeated when setpoints are changed so that the opposite mode is immediately available if desired Error Codes Two error messages in...

Page 23: ...Outputs EQUIPMENT CONFIGURATION OPTION 1 THERMOSTAT FACTORY CONFIGURATION COOL STAGE 1 HEAT STAGE 1 HEAT STAGE 2 EM HEAT AC PC AC HP Y G W HP PH RVS C HP Y G O B Y G Y G W W HP PH RVS H HP Y G Y G O B Y G W O B W ...

Page 24: ...24 WIRING DIAGRAMS C wire not needed for batteries A07819 Fig 5 A C Thermostat Typical Installation C wire not needed for batteries A07820 Fig 6 HP Thermostat Typical Installation ...

Page 25: ...Hot Cooling Rc R Dry Contact 1 D1 Dry Contact 2 D2 24VAC Common C COM COM Humidify HUM Outdoor Air Temp OAT Remote Room Sensor RRS OAT RRS Com OAT RRS Outdoor Sensor Humidifier Solenoid Valve Remote Room Sensor A07170 Fig 7 Single stage Furnace with Air Conditioner and Split Power Indicates connection may not be required available NOTE Rc Rh jumper is cut on the Equipment Control Module ...

Page 26: ...alue __________ Cooling Setpoint Value __________ Fan Auto or On C Home Away Sleep Settings Heat Cool Home ____ ____ Away ____ ____ Sleep ____ ____ D Schedule For Programmable Thermostats Period 1 Period 2 Period 3 Period 4 Time Heat Cool Time Heat Cool Time Heat Cool Time Heat Cool All Days ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ Weekdays ____ ____ ____ ____ ____ ____ ____ ___...

Page 27: ...n 13 ____ Room Air Temperature Offset Adjustment Option 15 ____ Auto Changeover Availability Option 16 ____ Cycles Per Hour Option 17 ____ Time Between Equipment Stages Option 18 ____ Backlight Configuration Option 21 ____ Keypad Lockout Option 24 ____ Programmable Non Programmable programmable models only Option 25 ____ Number of Programmable Periods Per Day programmable models only Option 26 ___...

Page 28: ...or change at any time specifications or designs without notice and without incurring obligations E2007 Bryant Heating Cooling Systems 7310 W Morris St Indianapolis IN 46231 Printed in U S A Edition Date 09 07 Replaces IIT2 PAC 01 Catalog No IIT2 PAC 02 ...