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Bryant T6-NHP - page 1
Installation Instructions T6 − P AC, T6 − PHP , T6 − NAC, T6 − NHP PREFERRED t SERIES AC / HP THERMOST A T A07045 A07044 Programmable Control Non-Programmable Control Designed and Assembled in the U.S.A. NOTE : Read the entire instruction manual before starting the installation. US patents: US7287709 B2, US20080147242 A1, USD582800 SI, US20 ...
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Bryant T6-NHP - page 2
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Bryant T6-NHP - page 3
1 T ABLE OF CONTENTS P AGE SAFETY CONSIDERA TIONS 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INTRODUCTION 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INST ALLA TION CONSIDERA TIONS 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INST ALLA TION 6 . . . . . ...
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Bryant T6-NHP - page 4
2 INTRODUCTION Bryant’ s 7 − day , 5/2 − day , 1 − day programmable and non − programmable Preferred 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 connecti ...
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Bryant T6-NHP - page 5
3 INST ALLA TION CONSIDERA TIONS Power This control is powered by 24V AC only . It requires 24V AC (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 24V ...
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Bryant T6-NHP - page 6
4 A07052 Fig. 1 − PCB Br eakout 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 T emperatur e Sensor Th ...
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Bryant T6-NHP - page 7
5 dedicated sensor wires may be used for its connection. Details are provided in sensor instructions. Remote Indoor T emperatur e 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 ...
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Bryant T6-NHP - page 8
6 Wiring W ire length should be no more than 250 ft (76m). Use 22 A WG for normal wiring applications. Continuous wire lengths over 100 ft (30.5m) should use 20 A WG or larger . INST ALLA TION Carton contains the following components. See Fig. 2 for programmable models or Fig. 3 for non − programmable models. A07756 Fig. 2 − T6 − P AC / T6 ? ...
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Bryant T6-NHP - page 9
7 A07757 Fig. 3 − T6 − NAC / T6 − NHP Carton Contents 1. Display Module 2. Stand − of f for Equipment Control Module 3. Screws and pig tail 4. Equipment Control Module AC/HP Control Location AC/HP Control should be mounted: Approximately 5 ft (1.5m) from floor . Close to or in a frequently used room, preferably on an inside parti- t ...
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Bryant T6-NHP - page 10
8 AC/HP Control should NOT be mounted: Close to a window , on an outside wall, or next to a door leading to the outside. Exposed to direct light or heat from a lamp, sun, fireplace, or other temperature − radiating objects which could cause a false reading. Close to or in direct airflow from supply registers and return − air regis- ...
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Bryant T6-NHP - page 11
9 UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation. 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 ! 1. Turn of f all power to equipment. 2. If an existing thermostat is being replac ...
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Bryant T6-NHP - page 12
10 Tw o − Piece Installation The following steps should be followed for the installation of the two − piece configuration. NOTE : The 2 − wire pigtail is not intended to support the weight of the User Interface. Do not hang the User Interface from the equipment Control Module screw terminals. 1. Remove mounting plate from back of Display Modu ...
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Bryant T6-NHP - page 13
11 A07226 Fig. 5 − T ake Apart 2. Route wires through lar ge hole in mounting base. Level mounting base against wall (for aesthetic value only—Display Module need not be lev- eled for proper operation) and mark wall through 4 mounting holes. T o avoid unintended bending of wall plate plastic, use all 4 screws and an- chors. See Fig. 6. ...
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Bryant T6-NHP - page 14
12 A07165 Fig. 6 − Backplate Mounting 3. Drill two 3/16 − in. mounting holes in wall where marked. Thermostat may be mounted to a standard junction box, if desired. Hole pattern on ther- mostat mounting base matches junction box mounting holes. 4. Secure rear plastic mounting base to wall with 4 screws and anchors pro- vided. T o avoid unintend ...
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Bryant T6-NHP - page 15
13 Relays OAT RRS SRTN HUM D1 D2 V+ Vg Rc Rh W / W1 G Y/Y2 Y used for single stage cooling C O/W2/B Y1 Y1 used for multi-speed cooling Y1 = stage 1 Y2 = stage 2 Control Module Wiring Guide connect to user interface dry contact OAT / RRS return { Relays OAT RRS SRTN HUM D1 D2 V+ Vg Rc Rh W / W1 G Y/Y2 Y used for single stage cooling C O/W2/B Y1 Y1 u ...
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Bryant T6-NHP - page 16
14 A07166 Fig. 8 − Secur e Wir es to T erminal Strip A07167 Fig. 9 − Connect Pigtail Wir es to Display Module ...
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Bryant T6-NHP - page 17
15 NOTE : The 2 − wire pigtail is not intended to support the weight of the User Interface. Do not hang the User Interface from the equipment Control Module screw terminals. Red is V+ Black is Vg 7. Push any excess wire into wall and against mounting base. Seal hole in wall to prevent air leaks. Leaks can affect operation and cause incorr ...
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Bryant T6-NHP - page 18
16 10. Find suitable indoor mounting location for Equipment Control Module, either near or on equipment. See Fig. 11. IMPOR T ANT NOTE: Equipment Control Module should not be mounted to duct work or below any other contr ols or equipment (i.e. humidistat, humidifier , etc.). A07217 Fig. 1 1 − Equipment Control Module on Equipment 11. Route wires ...
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Bryant T6-NHP - page 19
17 A07227 Fig. 12 − Standoff NOTE : Standoffs are provided as an aid when installing Equipment Control Module on inside equipment or a solid wall. 12. Match and connect equipment wires to proper terminals of each connector block being careful not to over tighten the screws. Correct polarity must be observed when connecting the two wires from the ...
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Bryant T6-NHP - page 20
18 A07218 Fig. 13 − Cover on Equipment Control Module 14. T urn on power to equipment. On power up, all display segments will light for 5 sec. For the next 5 sec a 2 − digit code appears on lar ge display which identifies AC/HP Control configuration. Refer to Option 33. a. AC — 1 − stage air conditioner , AC, with furnace or fan coil b. HP ...
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Bryant T6-NHP - page 21
19 Single − Piece Installation The following steps should be followed for the installation of the single − piece configuration. 1. Remove cover from Equipment Control Module by pressing the two tabs on the bottom edge and pulling away . Route wires through large hole in Equipment Control Module. Level Equipment Control Module against wall (for ...
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Bryant T6-NHP - page 22
20 A07219 Fig. 14 − Equipment Control Module 5. Match and connect equipment wires to proper terminals of each connector block. 6. Push any excess wire into wall and against Equipment Control Module. Seal hole in wall to prevent air leaks. Leaks can affect operation and cause incorrect temperature and/or humidity measurement. 7. Remove 2 − wire ...
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Bryant T6-NHP - page 23
21 A07221 Fig. 15 − Reattach Display Module 9. T urn on power to equipment. On power up, all display segments will light for 5 sec. For the next 5 sec a 2 − digit code appears on lar ge display which identifies AC/HP Control configuration. Refer to Option 33. a. AC — 1 − stage air conditioner , AC, with furnace or fan coil b. HP — 1 − s ...
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Bryant T6-NHP - page 24
22 must be properly set by the installer . (Only those marked with an asterisk * below are available to the homeowner .) The homeowner configurations are described in the owner’ s manual. A special procedure allows entry into the configuration mode. Description of each selection and how to use the configuration mode follows. CONFIGURA TION OPTION ...
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Bryant T6-NHP - page 25
23 Option 18* — Backlight Configuration Option 19 — Dry Contact (programmable models only) Option 20 — Outdoor Air T emperature Offset Adjustment 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 ? ...
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Bryant T6-NHP - page 26
24 WHILE IN CONFIGURA TION MODE The option number is displayed in the heat setpoint location and the configuration setting is displayed in the cool setpoint location. On the T6 − P AC/PHP (programmable) models, a box will surround the option number . The mode button is used to move the box between the two displayed values. The soft keys below the ...
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Bryant T6-NHP - page 27
25 Defaults HP model defaults to HP . AC model defaults to AC. Option 02 — Clean Filter T imer Select hours of blower operation (heating, cooling, or fan) before CHECK FIL TER icon is displayed. With OF selected, icon will never come on, disabling this feature. Time selection can range from 800 to 7200 hr by selecting numbers 1 through 9. (Time i ...
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Bryant T6-NHP - page 28
26 Sensor 1 Sensor 2 Sensor 3 Sensor 4 RRS SRTN A09130 Fig. 16 − Remote Room Sensor − Parallel W iring This selection determines which sensor the control will use for measuring room air temperature. Room air temperature can be sensed in one of three ways; the local sensor (L) located on the Display Module, the remote room air sensor (r), or the ...
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Bryant T6-NHP - page 29
27 Option 07 — Zoning This selection should be set to On when the thermostat is to be used as part of a zoning system. It is assumed that the zoning equipment will take care of time guard and cycle timers. The minimum on time is still controlled by the thermostat. Default is OF (off). Option 08 — Auxiliary Heat Lockout T emperatur e This select ...
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Bryant T6-NHP - page 30
28 C — Reversing valve output (O/W2/B) is energized when COOL mode is selected. Default is C. Option 1 1 — Deadband Setting Between Heat & Cool This option is not available on Heat Only and Cool Only systems. This selection is to allow the installer to choose how much differential exists between the heating and cooling setpoints. Allowable ...
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Bryant T6-NHP - page 31
29 On — Auto mode is available. OF — Auto mode is not available. Default is On. Option 16 — Maximum Cycles Per Hour This selection limits the number of cycles per hour that the thermostat allows the system to operate. Selections are 2, 4, 6. 2 — The heating and cooling outputs will be energized no more than 2 times per hour . When an output ...
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Bryant T6-NHP - page 32
30 becomes brighter when a button is pressed. After 10 seconds of no button presses, the backlight will return to the dimmer level until another button press occurs. The range of brightness is 1 through 5 with 5 being full brightness. Default is 3. Option 19 — Dry Contact Configuration (pr ogrammable models only) There are 2 available selections, ...
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Bryant T6-NHP - page 33
31 1 — The user has access to modify setpoints, time of day . 2 — The user has access to change the setpoints only . 3 — The entire keypad is locked. When a button is pressed, the backlight will turn on but none of the operating parameters will be changed. When the keypad lock selection is turned on, the padlock icon will be displayed. T o un ...
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Bryant T6-NHP - page 34
32 Option 22 — High Cool Latch T emperatur e (only available if outdoor sensor is pr esent) An outdoor sensor is required for high cool latch feature. This selection is only available when Option 1 is set to H2, A2, or h2 and when Option 7 (zoning) is set to OF (off). Configuration settings are OF (off), 80, 85, 90, 95, 100, 105, 110, On. OF (off ...
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Bryant T6-NHP - page 35
33 When a cycle starts under a high heat latch, it will finish the heating cycle on high stage. On — The Y1 and Y/Y2 outputs are simultaneously energized to satisfy all heating demands. Default is OF (off). Option 24 — Programmable/Non − Pr ogrammable This selection allows the installer to configure the thermostat as either programmable or no ...
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Bryant T6-NHP - page 36
34 Option 27 — Maximum Heating Setpoint This selection allows the installer to configure the maximum heating setpoint. The range is based on the adjustable deadband value Option 1 1, such that the minimum of the range is 50 F/10 C and the maximum is 90 F/32 C minus the deadband. Default is 88 F/31 C (based on the adjustabl ...
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Bryant T6-NHP - page 37
35 “overrides” the programmed fan setting by pressing the fan button, the override selection will remain in ef fect until the next programmed period time. Default is OF (off). Option 31 — Daylight Savings T ime Configuration (programmable models only) This selection allows the installer to set the thermostat to automatically change by one hou ...
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Bryant T6-NHP - page 38
36 2 — Thermostat will control the W1 and O/W2/B outputs. Default is 1. Option 33 — Single or T wo − Piece Installation This configuration allows the thermostat to compensate for the amount of heat generated by the thermostat electronics to allow more accurate sensing of the temperature sensor . The amount of heat compensation will be differe ...
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Bryant T6-NHP - page 39
37 of f even if the user has the fan selection set to continuous fan. The fan output will be turned back on in this temperature range if the maximum capacity of auxiliary heat is on due to system demand (auxiliary heat on in response to a defrost signal shouldn’t cause the fan to turn back on). If the outdoor air temperature is below 12 F/ ? ...
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Bryant T6-NHP - page 40
38 SYSTEM ST AR T − UP AND CHECKOUT The AC/HP Control is designed with a built − in installer test capability . It allows easy operation of equipment without delays or setpoint adjustments to force heating or cooling. T o enable installer test mode, press and hold the fan button for 15 seconds. After 10 seconds, the thermostat will enter Config ...
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Bryant T6-NHP - page 41
39 TO TEST F AN Fan button switches F AN icon between AUT O and On. While On is displayed, G output will be energized, turning fan on. On some fan coils, fan continues to operate for 90 sec after G signal is removed. Final Settings Be sure to press DONE to exit installer setup mode. If the system is to be left in operation after installation is com ...
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Bryant T6-NHP - page 42
40 If fixed temperatures are desired, use SCHEDULE button to turn on arrow icon next to HOLD. This will maintain setpoints, not allowing them to change with programmed schedule. The F AN button may be used to select between AUTO (fan on only with equipment) and On (fan on continuously) fan modes. For further information on temperature selection and ...
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Bryant T6-NHP - page 43
41 V acation (programmable models only) A vacation selection is available specifically for times where the home will not be occupied for an extended period. V acation mode has an automatic hold, meaning that setpoints are not affected by the programmed schedule. V acation mode is active for a specified period of time. While in vacation mode, the sy ...
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Bryant T6-NHP - page 44
42 Cycle Timer Based on the selection of 2, 4, or 6 cycles per hour, this timer is set to 30, 15, or 10 minutes. This much time must elapse from the start of one cycle before another cycle can start. It serves to impose the cycles per hour limits. It can be defeated for one cycle by simultaneously pressing the F AN and UP buttons. Te n − Minute S ...
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Bryant T6-NHP - page 45
43 Detect that defrost is in progress and energize the auxiliary heat to provide homeowner comfort during the defrost cycle Allow a defrost cycle to run to completion regardless of the system demand Thr ee − Minute Minimum on T ime In normal operation, when a stage turns on, it will not turn off for a minimum of 3 minutes. If the setpoint ...
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Bryant T6-NHP - page 46
44 Emergency Heat Mode When AC/HP Control is configured as a heat pump and emer gency heat is selected, all Y signals are locked out, and W becomes ener gized upon a call for heat. Pr ogrammable Fan (pr ogrammable models only) The fan output can be programmed based on period of the day . When programming for each day and period the fan can be set t ...
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Bryant T6-NHP - page 47
45 Relays This thermostat uses latching relays. When the thermostat loses power , the relays will remain in their last position until power is restored and all relays are reset to their correct position. Out of the box, the outputs may appear to be On when the thermostat is not powered. This is normal. Output states should only be checked when the ...
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Bryant T6-NHP - page 48
46 temperature sensed by the working sensor every 10 seconds. The control will operate from the temperature sensed by the working sensor . E1 − If the Display Module and the Equipment Control Module cannot communicate via two − wire connection, an E1 will be displayed. E2 − There is no E2 error message. E3 − If AC/HP Control cannot properly ...
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Bryant T6-NHP - page 49
47 T able 3 – Equipment Configuration Outputs For COOL, HEA T and Emergency Heat modes, the following chart shows the state for each output in each stage of operation EQUIP CONFIG OPTION 01 HARD- W ARE CONFIG COOL STG 1 COOL STG 2 HEA T STG 1 HEA T STG 2 HEA T STG 3 HEA T STG 4 EM HEA T STG 1 EM HEA T STG 2 SS AC AC Y/Y2 - W/W1 - - - - - SS AC HP ...
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Bryant T6-NHP - page 50
48 T able 3 − Equipment Configuration Outputs (cont.) EQUIP CONFIG OPTION 01 HARD- W ARE CONFIG COOL STG 1 COOL STG 2 HEA T STG 1 HEA T STG 2 HEA T STG 3 HEA T STG 4 EM HEA T STG 1 EM HEA T STG 2 2SPD HP RVS + B 2S Y1/W2 Y1/W2 Y/Y2 Y1/W2 O/W2/B Y1/W2 Y/Y2 O/W2/B Y1/W2 Y/Y2 O/W2/B W/1 - W/W1 - Heat Only Unit AC HP 2S - - W/W1 If HP or 2S board AND ...
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Bryant T6-NHP - page 51
49 WIRING DIAGRAMS Display module Display m odule wall mount Equipment Control Module Fan Coil Heat Pump V+ V+ Vg Vg O O V+ V+ RVS/Heat Stage 2 O/B W 2 W3 W2 Vg Vg Heat Stage 1 W /W1 W2 Compressor Y/Y2 Y Y Not Used Y1 Fan G G 24VAC Hot Heating Rh R R 24VAC Hot Cooling Rc Dry Contact 1 D1 Dry Contact 2 D2 24VAC Common C COM COM Outdoor Air Temp OAT ...
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Bryant T6-NHP - page 52
50 WIRING DIAGRAMS(cont.) Therm ostat Fan Coil Heat Pum p OO RVS/Heat Stage 2 O/B W 2 W 3 W 2** Heat Stage 1 W /W 1 W 2 Compressor Y/Y 2 Y Y Not Used Y1 Fan G G 24VAC Hot Heating Rh R R 24VAC Hot Cooling Rc Dry Contact 1 D1 Dry Contact 2 D2 24VAC Comm on C COM COM Outdoor Ai r Tem p OAT Remote Room Sensor RRS OAT/RRS Com OAT/RRS Outdoor Sensor * Re ...
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Bryant T6-NHP - page 53
51 WIRING DIAGRAMS(cont.) Therm ostat Fan Coil O RVS/Heat Stage 2 O/B W 2 W 3 Heat Stage 1 W/W 1 W 2 Compressor Y/Y 2 Not Used Y1 Fan G G 24VAC Hot Heating Rh R 24VAC Hot Cooling Rc Dry Contact 1 D1 Dry Contact 2 D2 Aux. Connection 24VAC Common C COM Outdoor A ir Tem p OAT Remote Room Sensor RRS OAT/RRS Com OAT/RRS Outdoor Sensor * Remote Room Sens ...
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Bryant T6-NHP - page 54
52 WIRING DIAGRAMS(cont.) Therm ostat Fan Coil Air Conditioner O RVS/Heat Stage 2 O/B W 2 W 3 Heat Stage 1 W /W 1 W 2 Compressor Y/Y 2 Y Y Not Used Y1 Fan G G 24VAC Hot Heating Rh R R 24VAC Hot Cooling Rc Dry Contact 1 D1 Dry Contact 2 D2 24VAC Common C COM COM Outdoor A ir Tem p OAT Remote Room Sensor RRS OAT/RRS Com OAT/RRS Outdoor Sensor * Remot ...
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Bryant T6-NHP - page 55
53 WIRING DIAGRAMS(cont.) Therm ostat Fan Coil O RVS/Heat Stage 2 O/B W 2 W 3 Heat Stage 1 W /W1 W2 Compressor Y/Y 2 Not Used Y1 Fan G G 24VAC Hot Heating Rh R 24VAC Hot Cooling Rc Dry Contact 1 D 1 Dry Contact 2 D2 Aux. Connection 24VAC Comm on C CO M Outdoor Ai r T emp OA T Remote Room Sensor RRS OAT/RRS Com OAT/RRS Outdoor Sensor * Remote Room S ...
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Bryant T6-NHP - page 56
54 WIRING DIAGRAMS(cont.) Therm ostat Furnace Air Conditioner Heat Stage 1 W /W 1 W/W1 Compressor Y/Y 2 Y/Y2 Y Not Used Y1 Fan G G 24VAC Hot Heating Rh R R 24VAC Hot Cooling Rc Dry Contact 1 D1 Dry Contact 2 D2 24VAC Common C COM COM Outdoor Ai r Tem p OAT Remote Room Sensor RRS OAT/RRS Com OAT/RRS Outdoor Sensor * Remote Room Sensor * * Heat Stage ...
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Bryant T6-NHP - page 57
55 WIRING DIAGRAMS(cont.) Therm ostat RVS/Heat Stage 2 O/B W 2 Heat Stage 1 W /W 1 Compressor Y/Y 2 Not Used Y1 Fan G G 24VAC Hot Heating Rh R 24VAC Hot Cooling Rc Dry Contact 1 D1 Dry Contact 2 D2 24VAC Comm on C C Outdoor A ir Tem p OA T Remote Room Sensor RRS OAT/RRS Com OAT /RRS A09158 Fig. 23 − Thermostat with Dry Contact Control for Run Tim ...
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Bryant T6-NHP - page 58
56 WIRING DIAGRAMS(cont.) Therm ostat Furnace Air Conditioner W2 RVS/Heat Stage 2 O/B W 2 Heat Stage 1 W /W 1 W /W1 Compressor Y/Y 2 Y/Y2 Y Not Used Y1 Fan G G 24VAC Hot Heating Rh R R 24VAC Hot Cooling Rc Dry Contact 1 D1 Dry Contact 2 D2 24VAC Comm on C COM CO M Outdoor Ai r Tem p OAT Remote Room Sensor RRS OAT/RRS Com OAT/RRS Outdoor Sensor * Re ...
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Bryant T6-NHP - page 59
57 WIRING DIAGRAMS(cont.) Single-Stage Single-Stage Therm ostat Furnace Air Conditioner RVS/Heat Stage 2 O/B W 2 Heat Stage 1 W /W 1 W/W1 Compressor Low Y1 Compressor High Y/Y2 Y/Y2 Y Fan G G 24VAC Hot Heating Rh R 24VAC Hot Cooling Rc R* Dry Contact 1 D1 Dry Contact 2 D2 24VAC Comm on C COM COM Outdoor Ai r Tem p OAT Remote Room Sensor RRS OAT/RRS ...
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Bryant T6-NHP - page 60
58 THERMOSTA T CONFIGURA TION RECORD Installer _________________________ Model Number ______________________________ Date _________________________ A. Hardware Configuration __________ Seal Hole In W all B. Mode Settings __________ Mode (Off, Heat, Cool, Auto, Em Heat) __________ Heating Setpoint Value __________ Cooling Setpoint V alue __________ ...
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Bryant T6-NHP - page 61
59 E Configuration Options Option 01 _____ Equipment Type Option 02 _____ Clean Filter Timer Adjustment Option 03* _____ Fahrenheit/Centigrade Selection Option 04 _____ Fan (G) on with W/W1 Selection Option 05 _____ Room Air T emperature Sensing Option 06 _____ Cooling Lockout Below 55 F Selection (only available if outdoor air sensor is presen ...
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Bryant T6-NHP - page 62
60 E Configuration Options (cont) 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 _____ Minimum Cooling Setpoint Option 27 _____ Maximum Heating Setpoint Option 28 _____ UV Light Reminder Option 29 _ ...
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Bryant T6-NHP - page 63
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Bryant T6-NHP - page 64
2 2009 Bryant Heating & Cooling Systems 7310 W . Morris St. Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 06/09 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. Catalog No: IIT6-P AC-03 Replaces: IIT6-PAC-02 ...
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