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; Failure to follow this warning could result in personal injury; WARNING; Dehumidify Equipment and Connections
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.; Two--Piece Thermidistat Control Configuration; relay clicking will not be heard.
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--A 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--A 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 C...
Page 10 - Install Thermidistat Control
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; d. New or additional wires may be needed to accommodate added hu-
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 19 - Module on inside equipment or a solid wall.
19 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 mustbe ...
Page 22 - incorrect temperature and/or humidity measurement.
22 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 a...
Page 24 - Set Thermidistat Control Configuration
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
26 Option 31* — Daylight Savings Time Configuration (programmable models only) Option 32 — Furnace Heat StagingOption 33 — Single or Two--Piece InstallationOption 40 — Fan HumidifyOption 41 — Variable Speed BlowerOption 42 — Variable Speed Super DehumidificationOption 43 — Intelligent Heat StagingOp...
Page 27 - Configuration Options —Selection; Option 01 — Equipment Type; indoor fan coil with no strip heaters.; Option 02 — Clean Filter Timer
27 saved at the time of selection and will be saved in the event of the 3 minutetime--out or when installer exits from configuration menu. Configuration Options —Selection Option 01 — Equipment Type Range: H2, A2, HP, AC, hh, h2, H, CH2 — operates a two--speed heat pump with a fan coilHP — operates ...
Page 28 - to On to prevent cooling below 55; Option 07 — Zoning
28 Option 03 — Fahrenheit/Centigrade Select between Fahrenheit (F) and Centigrade (C) operation. Factory default isFahrenheit (F). Option 04 — Fan (G) On With W/W1 This selection determines whether fan (G) output is to be On or OFF when any W/W1 (furnace or strip heat) output is On. Most furnaces an...
Page 29 - Option 08 — Auxiliary Heat Lockout Temperature; C -- Outdoor temperature above which the auxiliary heat is not; Option 10 — Reversing Valve
29 time guard and cycle timers. The minimum On time is still controlled by theThermidistat Control.Default is OF (off). Option 08 — Auxiliary Heat Lockout Temperature This selection is available on heat pump systems with a valid outdoor temperature sensor connected. Available settings are: Off, 5, 1...
Page 35 - C — Outdoor temperature above which both first and second
35 1 — The user has access to modify Home, Sleep, Away, and UP/DOWNsetpoints.2 — The entire keypad is locked. When a button is pressed, the backlight willturn on but none of the operating parameters will be changed.When the keypad lock selection is turned on, the padlock icon will be displayed. To u...
Page 36 - C — Outdoor temperature below which both first and second
36 On — The Y1 and Y/Y2 outputs are simultaneously energized to satisfy allcooling demands.Default is OF (off). Option 23 — High Heat Latch Temperature (only available if outdoorsensor is present) This selection is only available when Option 1 is set to H2, or h2 and Option 7 (zoning) is set to OF (...
Page 42 - Option 44 — Super Comfort Heat; C and the; hysteresis
42 Option 44 — Super Comfort Heat This option is only available on heat pump units HP (HP, H2, hh, and h2) when Option 41 (Variable Speed Blower) is set to On and the system has a valid OATsensor.OF (Off) -- Comfort Heat is offOn -- Comfort Heat feature is on.If the outdoor air temperature is betwee...
Page 43 - Option 99 — Reset to Factory Defaults; the reset will not occur.
43 Option 99 — Reset to Factory Defaults Use this capability to reset the Thermidistat Control to “out of the box” conditions. BEWARE! All configuration settings, program settings, clock, andcalendar which have been manually entered will be lost!When this option is selected, the configuration number...
Page 45 - Final Settings; conform to the Energy Star; Table 1 – Energy Star Default Schedule; SCHEDULE
45 pressed for fan to turn On and off. On some fan coils, fan continues to operatefor 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 complete, use MODE button to select betweenHEAT, C...
Page 46 - Dehumidify setting may only be changed when cool mode is selected.
46 The FAN button may be used to select between AUTO (fan on only withequipment) and On (fan on continuously) fan modes. For further information on temperature selection and programming, refer to Homeowner’s Guide. Setting The Clock, Calendar, Daily Schedule, and Vacation Settings (programmable mode...
Page 47 - occur while heating. See Table 2 for reference.; Table 2 – Humidification Selections
47 Humidity Control Features The various humidity control features of the Thermidistat Control are explained below. They are grouped into 2 sections, humidification and dehumidification.Instructions on how to select each feature are given at the end of each section. Humidification The Thermidistat C...
Page 48 - Additional Humidify Comments; Dehumidification
48 See Fig. 16 for outdoor temperature/indoor humidity relationship in autohumidify mode. 3. Humidify Off The humidify function can be turned off completely. This does not re-quire changing existing setpoints. To Select Humidification (programmable) Press the soft key below the humidify icon to brin...
Page 50 - changing existing setpoints.
50 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 53 - Vacation Setpoints; Table 3 for default values.; Table 3 – Vacation Setpoints Default Values; MODE; Vacation Humidification; box is around the heating setpoint.; Vacation Dehumidification
53 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 54 - OPERATIONAL INFORMATION; Timers; Cycle Timer; (usually due to a large change; Defrost
54 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 55 - Equipment On Indicators; heat on” icon will be displayed.
55 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 56 - The fan output can be programmed based on period of the day. When; Dry Contact
56 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 57 - See Wiring Diagrams for more information.; TROUBLESHOOTING; Error Codes
57 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 59 - Table 4 – Equipment Configuration Outputs
59 Table 4 – Equipment Configuration Outputs EQUIP CONFIG OPTION 01 FACTORY CONFIG COOLSTG 1 COOLSTG 2 HEAT STG 1 HEAT STG 2 HEAT STG 3 HEAT STG 4 EM HEAT STG 1 EM HEAT STG 2 SS AC AC Y/Y2 -- W/W1 -- -- -- -- -- SS AC HP 2S Y/Y2 -- W/W1 W/W1 O/W2/B (if Opt32 = 2) -- -- -- -- SS HP RVS = O HP Y/Y2, O...
Page 61 - WIRING DIAGRAMS
61 WIRING DIAGRAMS Display module Display modulewall mount Equipment Control Module Fan Coil Heat Pump V+ V+ Vg Vg O O V+ RVS/Heat Stage 2 O/B W 2 W 3 W 2 Vg Heat Stage 1 W /W 1 W 2 Compressor Y/Y2 Y Y Y1 / W 2 Fan G G 24VAC Hot Heating Rh R R 24VAC Hot Cooling Rc Dry Contact 1 D1 Dry Contact 2 D2 2...
Page 79 - Air Conditioner
79 Variable Speed/Multi-Stage Equipment Control Module Furnace Air Conditioner Heat Stage 2 O/B W 2 W 2 Heat Stage 1 W /W 1 W 1 N/A Y1 / W 2 Y1 Cool Stage 1 Y/Y2 Y/Y2 Y Fan G G 24VA C Hot Heating Rh R R * 24VA C Hot Cooling Rc Dry Contact 1 D1 Dry Contact 2 D2 DHUM 24VA C Common C COM C Humidify HUM...
