Page 3 - INTRODUCTION; settings
3 INTRODUCTION Bryant’s 7--day, 5/2--day, 1--day programmable and non--programmablePreferred Series Thermidistat Control is a wall--mounted, low--voltage control which combines temperature and humidity control in either a single unit or a two--piece unit. In two--piece configuration, the relays are ...
Page 4 - INSTALLATION CONSIDERATIONS; Power
4 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 properoperation. It will not operate without these 2 connections. Rh and Rc are connected via PCB breakout jumper. See...
Page 6 - ELECTRICAL OPERATION HAZARD; Wiring Diagrams and notes for proper connection.; WARNING; Dehumidify Equipment and Connections; provided in sensor instructions.
6 ELECTRICAL OPERATION HAZARD Failure to follow this warning could result in personal injury or death.DO NOT connect furnace HUM terminal directly to Thermidistat Control HUM terminal. This will bypass furnace safety controls. See Low Voltage Wiring Diagrams and notes for proper connection. ! WARNIN...
Page 7 - Remote Indoor Temperature Sensor; used as a stand alone or average with local sensor.
7 Remote Indoor Temperature Sensor A remote temperature sensor may be used with the programmable model, where it is desirable to install the Thermidistat Control in a limited access location whilemeasuring the temperature in the living space. The remote room sensor may be used as a stand alone or av...
Page 8 - INSTALLATION
8 INSTALLATION Carton contains the following components. See Fig. 2 for T6--PRH or Fig. 3 forT6--NRH. A07752 Fig. 2 -- T6--PRH Carton Contents 1. Display Module2. Stand--off for Equipment Control Module3. Outside Air Temperature Sensor, screws and pigtail.4. Equipment Control Module
Page 9 - Thermidistat Control Location; Thermidistat Control should be mounted:
9 A07753 Fig. 3 -- T6--NRH Carton Contents 1. Display Module2. Stand--off for Equipment Control Module3. Outside Air Temperature Sensor, screws and pigtail.4. Equipment Control Module Thermidistat Control Location Thermidistat Control should be mounted: S Approximately 5 ft (1.5m) from floor. S Clos...
Page 10 - Install Thermidistat Control; Failure to follow this warning could result in personal injury
10 S Exposed to direct light or heat from a lamp, sun, fireplace, or othertemperature--radiating objects which could cause a false reading. S Close to or in direct airflow from supply registers and return--air regis-ters. S In areas with poor air circulation, such as behind a door or in an al- cove....
Page 11 - UNIT DAMAGE HAZARD; Failure to follow this caution may result in equipment damage; CAUTION; If an existing Thermidistat Control is being replaced
11 UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation.Improper wiring or installation may damage Thermidistat Control. Check to make sure wiring is correct before proceeding with installation or turning on power. CAUTION ! 1. Turn off all power to ...
Page 12 - ENVIRONMENTAL HAZARD; Failure to follow this caution may result in environmental; NOTE; : The 2--wire pigtail is not intended to support the weight of the User
12 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 ! Two--Piece Installation The following steps should be followed for the installation of the two--piececon...
Page 15 - Black is Vg
15 6. 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 Equipment ControlModule to the Thermidistat Control mounting base. If wires are con-nected incor...
Page 18 - IMPORTANT NOTE: Equipment Control Module should not be mounted
18 10. Find suitable indoor mounting location for Equipment Control Module, either near or on equipment. See Fig. 11. IMPORTANT NOTE: Equipment Control Module should not be mounted to duct work or below any other controls or equipment (i.e. humidistat, humidifier, etc.). A07217 Fig. 11 -- Equipment ...
Page 24 - Set Thermidistat Control Configuration; Option 06 — Cooling Lockout Below 55
24 Set Thermidistat Control Configuration Configuration options enable the installer to configure the Thermidistat Control for a particular installation. Most are not presented to the homeowner andtherefore must be properly set by the installer. (Only those marked with an asterisk * below are availa...
Page 26 - Option 31* — Daylight Savings Time Configuration; Configuration Options —Selection; Option 01 — Equipment Type
26 Option 31* — Daylight Savings Time Configuration (programmable models only) Option 32 — Furnace Heat StagingOption 33 — Single or Two--Piece InstallationOption 99 — Reset to Factory DefaultsTO ENTER CONFIGURATION MODEPress and hold FAN button for approximately 10 sec. The Display Module is now in...
Page 27 - indoor fan coil with no strip heaters.; Option 02 — Clean Filter Timer
27 H2 — operates a two--speed heat pump with a fan coilHP — operates a single--speed heat pump with a fan coilA2 — operates a two--speed ACAC — operates a single--speed AChh — operates a single--speed heat pump with a furnaceh2 — operates a two--speed heat pump with a furnaceH — operates a heat--onl...
Page 28 - to prevent cooling below 55; Option 07 — Zoning
28 their own blowers and do not require separate G signal. For these applications,select OFF. Some auxiliary heaters require separate G signal to turn on blower. In this case, select On.Default is OF (off). Option 05 — Room Air Temperature Sensing (programmable models only) This selection determines...
Page 29 - Option 09 — Heat Pump Lockout Temperature; F — the outdoor temperature below which heat pump operation is not; Option 10 — Reversing Valve
29 OF (off) -- function is disabled. Auxiliary heat is allowed to operate wheneversufficient demand for heat is available.5--55 _ F -- Outdoor temperature above which the auxiliary heat is not allowed to operate (unless MODE is set to Emergency Heat).Default is OF (off). Option 09 — Heat Pump Lockou...
Page 30 - The number of; Option 14 — Humidity Display Offset Adjust
30 Option 11 — Deadband Setting Between Heat & Cool This option is not available on Heat Only and Cool Only systems. The selectionallows the installer to choose how much differential exists between the heating and cooling setpoints. Allowable selections are 1--6.Default is 2. Option 12 — Smart R...
Page 35 - Option 22 — High Cool Latch Temperature; F — Outdoor temperature above which both first and second stages of; Option 23 — High Heat Latch Temperature; F — Outdoor temperature below which both first and second stages of
35 Option 22 — High Cool Latch Temperature 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 whenOption 7 (zoning) is set to OF (off). Configuration settings are OF (off), 80, 85, 90, 95, 100, 105, 110, On.OF (off) — ...
Page 36 - Option 26 — Minimum Cooling Setpoint; deadband Option 11, such that the minimum of the range is 50
36 On — The Y1 and Y/Y2 outputs are simultaneously energized to satisfy allheating demands.Default is OF (off). Option 24 — Programmable/Non--Programmable (programmable modelsonly) This selection allows the installer to configure the Thermidistat Control as either programmable or non--programmable. ...
Page 37 - Option 27 — Maximum Heating Setpoint; F and the maximum is 90; Option 28 — UV Light Reminder
37 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 11, such that theminimum of the range is 50 _ F and the maximum is 90 _ F minus the deadband. Default is 88 _ F (based on ...
Page 38 - Option 30 — Programmable Fan (programmable models only)
38 Option 30 — Programmable Fan (programmable models only) This selection allows the homeowner to program the fan selection to “Auto” or “On” fan operation for each of the program schedule periods. This selection isonly available on programmable Thermidistat Controls.OF (off) — Programmable fan is d...
Page 41 - Final Settings
41 installation, only 1 stage of auxiliary heat is available. Any staging of auxiliaryheat must be managed by the furnace or fan coil. While the heating test is active, the humidify output can be toggled. On the programmable models, pressing thebutton below the humidify icon shall toggle the state o...
Page 42 - requirements of the U.S. Department of Energy for; Table 1 – Energy Star Default Schedule; SCHEDULE
42 On the programmable models, the default setpoints and programmed scheduleconform to the Energy Star r requirements of the U.S. Department of Energy for both heating and cooling. These provide energy saving temperature settings.Refer to Table 1. Table 1 – Energy Star Default Schedule SCHEDULE HEAT...
Page 43 - Dehumidify setting may only be changed when cool mode is selected.; Humidity Control Features; occur while heating. See Table 2 for reference.
43 the set button will cycle through the calendar, daily schedule, and vacationsettings.Calendar may be changed by using the soft keys to select the Month, Day, orYear. The UP/DOWN buttons are used to change the Month, Day, or Year setting when the box surrounds it. Day of the week (Mon--Sun) is det...
Page 44 - Table 2 – Humidification Selections
44 Table 2 – Humidification Selections SELECTION FAN DISPLAY HUMIDIFY SETPOINT DISPLAY Normal Humidify Blank 10 --- 46 Auto Humidify AUTO 1 --- 9 Humidify Off Blank OF (Off) 1. Humidify In normal humidify, humidifier will be on if there is humidity demandand any heating equipment is on. This will in...
Page 45 - Additional Humidify Comments; Dehumidification
45 To Select Humidification (non--programmable) Press the features button twice. The first press displays the outdoor air temperature and the second press displays the humidity value and humidifytarget.Pressing the mode button shall cycle through the available humidificationselections (Off, Humidify...
Page 47 - changing existing setpoints.
47 A06599 Fig. 16 -- Auto Humidity 3. Dehumidify Off Dehumidification can be turned off completely. This can be done without changing existing setpoints. To Select Dehumidification (programmable -- between NORMAL, COOLTO, and OFF) Press the soft key below the dehumidify icon button to bring up dehum...
Page 50 - Vacation Setpoints; Table 3 for default values.; Table 3 – Vacation Setpoints Default Values; MODE; Vacation Humidification; box is around the heating setpoint.; Vacation Dehumidification
50 Vacation Setpoints A special set of temperature and humidity setpoints exist which are active in vacation mode. They are adjustable by the homeowner, are exclusively forvacation mode, and are remembered from one vacation selection to the next. See Table 3 for default values. Table 3 – Vacation Se...
Page 51 - OPERATIONAL INFORMATION; Timers; Cycle Timer; F (usually due to a large change; Defrost
51 OPERATIONAL INFORMATION Timers Five--Minute Compressor Timeguard This timer prevents compressor from starting unless it has been off for at least 5 minutes. It can be overridden for 1 cycle by simultaneously pressing FAN andUP buttons. Cycle Timer Based on the selection of 2, 4, or 6 cycles per h...
Page 52 - Equipment On Indicators; heat on” icon will be displayed.
52 signal shall be considered valid if the compressor output is energized and thedefrost signal has been active for less than 15 consecutive minutes. Any defrost signal present for longer than 15 minutes shall be considered invalid.Heat pump/fan coil and hybrid heat systems shall use this input to: ...
Page 53 - The fan output can be programmed based on period of the day. When; Dry Contact
53 Humidify and Dehumidify Indicators When the Display Module door is closed, the humidify icon will be displayed when humidification is active and the dehumidify icon will be displayed whendehumidification is active. Auto Changeover When auto changeover mode is selected, a change from heat to cool ...
Page 54 - TROUBLESHOOTING; Error Codes
54 power to energize the dehumidify terminal on the cooling equipment when thedry contact is closed.If it is desired to operate a ventilator or other device, the D1 and D2 terminalscan be connected directly to the equipment. This will provide a closed contact for the specified number of minutes per ...
Page 56 - Table 4 – Equipment Configuration Outputs
56 Table 4 – Equipment Configuration Outputs EQUIPMENT CONFIGURATION OPTION #1 HARDWARE CONFIGURATION COOL STAGE 1 COOL STAGE 2 HEAT STAGE 1 HEAT STAGE 2 HEAT STAGE 3 EM HEAT STAGE 1 Single--stage AC AC Y/Y2 -- W/W1 -- -- -- Single--stage AC HP 2S Y/Y2 -- W/W1 W/W1 O/W2/B -- -- Single--stage HP RVS ...
Page 58 - WIRING DIAGRAMS
58 WIRING DIAGRAMS Display module Display module 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 W 3 W 2 Vg Vg Heat Stage 1 W /W 1 W 2 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 Cont...
Page 76 - Air Conditioner
76 Variable Speed/Multi-Stage Thermostat Furnace Air Conditioner RVS/Heat Stage 2 O/B W 2 W 2 Heat Stage 1 W /W 1 W 1 Compressor Low Y1 Y1 Compressor High Y/Y2 Y/Y2 Y Fan G G 24VAC Hot Heating Rh R R * 24VAC Hot Cooling Rc Dry Contact 1 D1 Dry Contact 2 D2 DEHUM 24VAC Common C COM COM Humidify HUM O...
Page 78 - THERMIDISTAT CONFIGURATION RECORD
78 THERMIDISTAT CONFIGURATION RECORD Installer _________________________ Model Number ______________________________ Date _________________________ A. Hardware Configuration __________ Seal Hole In Wall B. Mode Settings __________ Mode (Off, Heat, Cool, Auto, Em Heat) __________ Heating Setpoint Val...
