Observer TSTAT0101SC Installation Manual
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Observer TSTAT0101SC Installation Manual

Communicating wall control
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See also: Owner's Manual
Communicating Wall Control
Installation Manual
TSTAT0101SC
U.S. Patent No. 7,243,004
U.S. Patent No. 7,775,452
616 01 1017 02 08/07/12

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Summary of Contents for Observer TSTAT0101SC

  • Page 1 Communicating Wall Control Installation Manual TSTAT0101SC U.S. Patent No. 7,243,004 U.S. Patent No. 7,775,452 616 01 1017 02 08/07/12...

  • Page 2: Table Of Contents

    Safety Considerations ....... Introduction ......... Quick Start .
  • Page 3 Selecting Humidifier ......Selecting Indoor Unit ......Selecting Outdoor Unit .
  • Page 4 Smart Recovery ....... . . Setpoint Deadband ......Cycles Per Hour .
  • Page 5 Airflow ........Heating Airflow .
  • Page 6 Status ........Heat Stage (Furnace) .

  • Page 7: Safety Considerations

    Safety Considerations Improper installation, adjustment, alteration, service, main­ tenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause death, personal injury or property damage. Consult a qualified installer, service agency or your distributor or branch for information or assist­ ance.

  • Page 8: Introduction

    Introduction The communicating system consists of several intelligent communicating components which includes the Observer Control, variable speed furnace or fan coil, 2­stage AC or HP, which continually communicate with each other via a four­wire communication bus. Commands, operating condi­...

  • Page 9: Quick Start

    Quick Start For first time installers, Quick Start will allow a quick start up of the Observer Control before learning all the details of sys­ tem operation. However, for the best possible comfort and operation refer to the Owner’s Manual.
  • Page 10 Under date, you can select the month, day, or year buttons; then use the ▲ and ▼ to select the appropriate date. . Un­ der time, you can select the hour, minute, and am/pm; then use the ▲ and ▼ to select the appropriate time. You also have the option of selecting between a 12 HR or 24 HR clock format.

  • Page 11: Set Schedule For All Days

    Set Schedule for All Days The Observer Control gives you flexibility in how to create a comfort schedule. You can choose one schedule for all days; create a schedule for your work week and the weekend; or you can make every day different.
  • Page 12 2. Press ▲ under “All Days”, then press EDIT. 616 01 1017 02...
  • Page 13 3. Press PERIOD; then use the ▲ or ▼ to select the period to change. 616 01 1017 02...

  • Page 14: Installation

    CANCEL to exit without saving.) Installation Overview This instruction covers installation of the Observer Control only. Physical installation instructions for the indoor and out­ door equipment and accessories are provided with each unit. Setup, commissioning, operation, and troubleshooting of the communicating system are covered only in this installation instruction.

  • Page 15: Check Equipment

    All wiring must comply with national, local, and state codes. Wall Control The Observer Control is the command center for the commu­ nicating system. It should be located where it is easily ac­ cessible and visible to the adult homeowner or end user. For...

  • Page 16: Remote Room Sensors

    In areas with poor air circulation, such as behind a door or in an alcove. Remote Room Sensors A Remote Room Sensor can be used with the Observer Control to take the place of the control’s internal temperature sensor. This allows the Observer Control to be mounted in areas with less than optimal airflow (such as near an exterior door, window or in a closet).

  • Page 17: Wiring Considerations

    See Fig. 1. It is also important to note the humidity sensor cannot be re­ motely located, so do not locate the Observer Control in an area where humidity sensing may not be accurate.
  • Page 18 mostat cable having more than four wires in the event of a damaged or broken wire during installation. Each communicating device in the system has a four­pin connector. It is recommended that the following color code be used when wiring each device: DX+ —...
  • Page 19 3. Select Observer Control mounting plastic 4. Route wires through hole in mounting plastic. Level rear plastic against wall (for aesthetic value only ­ Observer Con­ trol need not be level to operate properly) and mark wall through two mounting holes.

  • Page 20: Shielded Wire

    The Observer Control, when paired with the NAXA00101DB daughter board, will operate non­communicating equipment. When the system utilizes the NAXA00101DB daughter board, the Observer Control operates as a standard univer­ sal thermostat. See Appendix Wiring Diagrams 616 01 1017 02...

  • Page 21: Mounting

    Mount the assembly to the back­plate. NOTE: Once Observer Control is secured to wall with the back­plate assembly (snapped together), care must be taken not to bend or break the interlocking tabs when removing.

  • Page 22: Humidifier Connection

    Fig. 2 – Wall Control Assembly Pieces Humidifier Connection A 24VAC bypass or fan powered humidifier may be installed. NOTE: Do Not Use a traditional humidistat to control humidi­ fier operation. If a humidifier is installed, let the Observer Control operate humidifier. 616 01 1017 02...

  • Page 23: Bypass Humidifiers

    Bypass Humidifiers A bypass humidifier should be wired directly to the furnace or fan coil HUM and 24VAC COM terminals. The Observer Control will automatically energize the HUM output during a call for humidification. Fan Powered Humidifiers Most fan powered humidifiers produce internal 24VAC in or­...
  • Page 24 The wall control will light up and indicate that it is now “FIND­ ING INDOOR EQUIPMENT”, followed by “FINDING OUT­ DOOR EQUIPMENT” 616 01 1017 02...
  • Page 25 Once the indoor and outdoor equipment has been found, the Installer will be asked to select if a humidifier is installed. NOTE: If the communicating indoor equipment (furnace or fan coil) cannot be found, the wall control will display the op­ tion to enter THERMOSTAT DEMO MODE or to retry the search for equipment.

  • Page 26: Selecting Humidifier

    Selecting Accessories Once the indoor and outdoor equipment have been found or entered, the following screen will appear allowing the In­ staller to select “HUMIDIFIER INSTALLED”. Press YES or NO to make the appropriate selection. Selecting Outdoor Unit If there is no communicating indoor unit, the screens below will appear.
  • Page 27 616 01 1017 02...

  • Page 28: Selecting Outdoor Unit

    Selecting Outdoor Unit If there is no communicating outdoor unit, the screens below will appear. The installer should select the outdoor unit type (heat pump, air conditioner or none), then select the outdoor unit stages (single or two­stage). 616 01 1017 02...

  • Page 29: Equipment Configuration

    Equipment Summary The “EQUIPMENT CONFIGURATION” screen will appear after the humidifier screen. This screen will give a summary of all equipment automatically found or manually selected. If a wrong selection was made, press RELEARN to go back. When all of the equipment is correct, press SAVE. 616 01 1017 02...

  • Page 30: Brand Selection

    Brand Selection After the commissioning of the Observer Control, the installer will be prompted to select the appropriate brand. After the brand selection, or NO LOGO is made, the installer will have the opportunity to confirm the choice. If the brand selection is correct, press DONE, otherwise press BACK to select a dif­...
  • Page 31 NOTE: The INSTALL / SERVICE menu will automatically exit after 60 minutes of no activity. 616 01 1017 02...

  • Page 32: Equipment Menu

    Equipment Summary Menu This screen shows indoor unit type and model number, out­ door unit type (and model number if a communicating out­ door unit), and any accessories that are installed are recog­ nized. 616 01 1017 02...

  • Page 33: Filter Reminder

    Setup Menu Select the number of hours of fan operation after which the replace filter reminder shall appear. Off – The Replace Filter Reminder function is disabled 800­7200 hours – in 800 hour increments after which the re­ minder shall appear Default = 3200 hours 616 01 1017 02...

  • Page 34: Auto Mode Enable

    Auto Mode Enable When Auto Mode is enabled (factory default) a change from heat to cool (or vice versa) will not occur until the current cycle is satisfied and an opposite mode demand has existed for 30 minutes. If the set­point is changed, the 30 minute timer is deleted.

  • Page 35: Room Temperature Sensing

    Room Temperature Sensing The room air temperature can come from one of three sources: the local sensor in the wall control, the remote room air sensor, or the average of the local and remote sensors. Local – use the local sensor in the wall control Remote –...

  • Page 36: Reversing Valve

    Reversing Valve For heat pump applications, the reversing valve will be active with heating or cooling operation. Heat Cool (default) 616 01 1017 02...

  • Page 37: English/Metric Display

    English/Metric Display Displaying temperature in English or Metric Values F – all temperatures and setpoints shown in degrees Fahrenheit C – all temperatures and setpoints shown in degrees Celsius Default = degrees F 616 01 1017 02...

  • Page 38: Fan On With W

    Fan on with W An option to turn the fan on with a call for furnace heating OFF (default) 616 01 1017 02...

  • Page 39: Cooling Lockout

    Cooling Lockout When enabled, cooling will not be provided when the outside temperature is below 55º F. Off – Cooling is allowed at all outdoor air temperatures On – Cooling not allowed when outdoor air temperature is below 55º F. Default = Off 616 01 1017 02...

  • Page 40: Auxiliary Heat Lockout

    Auxiliary Heat Lockout With heat pump systems, the auxiliary heat will not be used when the outside temperature is above this setting. Off – The auxiliary heat can turn on whenever sufficient demand exists regardless of outside air temperature. 5º­55º F – Outside air temperature above which the auxili­ ary heat will be inactive Default = Off 616 01 1017 02...

  • Page 41: Heat Pump Lockout

    Heat Pump Lockout With heat pump systems, the outside air temperature below which the heat pump will be locked out and only auxiliary heat will be used. Off – The heating cycle will always start with the heat pump regardless of the outside air temperature 5º­55º...

  • Page 42: Minimum Cooling Setpoint

    Minimum Cooling Setpoint The minimum cooling setpoint the user is allowed to set on the thermostat 52ºF to 90ºF (12ºC to 32ºC) Default = 52ºF (12ºC) 616 01 1017 02...

  • Page 43: Maximum Heating Setpoint

    Maximum Heating Setpoint The maximum heating setpoint the user is allowed to set on the thermostat 50ºF to 88ºF (10ºC to 30ºC) Default = 88ºF (30ºC) 616 01 1017 02...

  • Page 44: Outdoor Air Temperature Offset

    Outdoor Air Temperature Offset This option allows calibration (or deliberate mis­calibration) of the outdoor temperature. This offset is added to the actual temperature values. ­5ºF to +5ºF (­3ºC to +3ºC) – Number of degrees added to the actual temperature value Default = 0 616 01 1017 02...

  • Page 45: Room Air Temperature Offset

    Room Air Temperature Offset ­5ºF to +5ºF (­3ºC to +3ºC) – Number of degrees added to the actual temperature value Default = 0 616 01 1017 02...

  • Page 46: Smart Recovery

    Smart Recovery This feature applies to programmable operation only. The control will start recovery X minutes prior to schedule change in both heating and cooling mode as energy efficiently as possible. Off – at the programmed time, the setpoints shall be changed to the next programmed settings 30, 60 or 90 –...

  • Page 47: Setpoint Deadband

    Setpoint Deadband The minimum difference enforced between heating and cool­ ing desired temperatures. This can allow one setting to “push” the other to maintain this difference. 2º to 6º ­ minimum number of degrees between the heat­ ing and cooling setpoints Default = 2º...

  • Page 48: Cycles Per Hour

    Cycles Per Hour The maximum number of heating or cooling cycles per hour. 2 – The Y, Y2, W and W2 outputs shall be energized at most twice per hour 4 – The Y, Y2, W and W2 outputs shall be energized at most four times per hour 6 –...

  • Page 49: Auto Changeover Timer

    Auto Changeover Timer This feature designates the minimum number of minutes between heating and cooling operation when in auto mode. 5 to 30 minutes (5 minute increments) Default = 30 minutes 616 01 1017 02...

  • Page 50: Time Between Fuel Types

    Time Between Fuel Types The minimum amount of time the Y1 and Y2 output must be energized in heating before turning on the W1 output. 10 to 25 minutes (5 minute increments) Default = 15 minutes 616 01 1017 02...

  • Page 51: Humidity Offset

    Humidity Offset This option allows calibration (or deliberate mis­calibration) of the humidity sensor. This offset is added to the actual hu­ midity value. ­10 to +10% Default = 0% 616 01 1017 02...

  • Page 52: Programming On/Off

    Programming On/Off This feature allows the thermostat to turn off the program­ ming mode and operate as a non­programmable thermostat. Off – operates as a non­programmable thermostat On – allows program schedule to be set by user Default = On 616 01 1017 02...

  • Page 53: Reset To Factory Defaults

    Reset to Factory Defaults This feature allows the installer to return the thermostat to its factory default settings. The installer will need to hold the ▼ button down for 10 seconds to reset settings. 616 01 1017 02...

  • Page 54: Dealer Info

    Dealer Info These screens allow the dealer to input contact information. The dealer contact information will appear when the user selects dealer info after service or maintenance reminders are displayed on the screen. 616 01 1017 02...

  • Page 55: Service Reminder

    Service Reminder This setup is used to adjust the timer interval in which the normal System Maintenance notification is turned on for the homeowner. 0 to 24 months (1 month increments) Default = 12 months Install/Service Menus – Communicating Mode Setup Menu This menu has several layers, allowing modification of equip­...

  • Page 56: Main Setup Menu

    Upon a initial startup dis­ covery of the Observer Control, DIP switch settings will be copied into the setup menu. Any changes can then be made from the Observer Control.

  • Page 57: Setpoint Deadband

    for 30 minutes. If the set­point is changed, the 30 minute timer is deleted. Enable/Disable Auto Changeover mode (default = En­ able). Auto Changeover Time may be adjusted 5 to 120 minutes, (default = 30 minutes). Setpoint Deadband The minimum difference enforced between heating and cool­ ing desired temperatures.

  • Page 58: Programming

    English/Metric Display ºF or ºC, (default = ºF) Airflow Upon a first time start­up of the Observer Control, the fur­ nace DIP switch settings will be copied to the furnace setup menu. Any changes can then be made from the Observer Control.

  • Page 59: Heating Airflow

    Heating Airflow Furnace / Fancoil Heating Airflow Selects the airflow of the indoor unit when heating. EFFI­ CIENCY is the airflow used to meet specified ratings, COM­ FORT is a decreased airflow used to increase the output air temperature and provide increased comfort. COMFORT (default) EFFICIENCY MIN CFM (modulating furnace only) –...

  • Page 60: Heat Pump Heating Airflow

    Heat Pump Heating Airflow COMFORT (default) ­­ Heat Pump airflow is varied depend­ ing on outdoor temperature to maximize comfort. EFF 325 ­­ Fixed airflow used to achieve specified ratings. This is nominally 325 CFM/ton, but will vary if a 2­­stage out­ door unit is used.

  • Page 61: Dehum Airflow

    MAXIMUM ­­ 400 CFM/ton. No dehumidification airflow re­ duction. Dehum Airflow NORMAL (default) ­­ When equipment is running to dehu­ midify, the airflow is allowed to adjust to a minimum to satisfy the dehumidification call. HIGH ­­ Minimum airflow during the dehumidify mode is in­ creased to reduce duct and register sweating.

  • Page 62: Furnace Airflow (Capacity) Limiting

    Furnace Airflow (Capacity) Limiting The following settings allow the installer to restrict the fur­ nace within certain minimum and maximum airflows. These airflows are converted to capacities. The Min and Max limits are determined by the equipment size. Min CFM (only appears with modulating furnaces) Minimum CFM to run a modulating furnace.

  • Page 63: Dehum Drain

    Dehum Drain Turns off the continuous fan at the end of cooling cycle for five minutes in order to drain the indoor coil of water. The fan will only be turned off if a dehumidify demand existed at the start of or during the cooling cycle.

  • Page 64: Heat Pump/Ac

    Heat Pump/AC Cooling Lockout Selecting ON will enable the low ambient cooling operation in the outdoor unit. This setting is only available with commu­ nicating outdoor units and with Cooling Lockout set to OFF. Low ambient kits are not needed with communicating out­ door units.

  • Page 65: Defrost Interval

    Defrost Interval Time interval at which defrost cycles can occur on a heat pump. 30 minutes 60 minutes 90 minutes 120 minutes (default) Auto­Defrost interval optimized by outdoor control (default for communicating HP) 616 01 1017 02...

  • Page 66: Quiet Shift

    Quiet Shift Turns on Quiet Shift function in 1­stage or 2­stage commu­ nicating heat pumps. OFF (default) 616 01 1017 02...

  • Page 67: Defrost With Furnace

    Defrost With Furnace Choose whether furnace operates during defrost cycle. YES (default) 616 01 1017 02...

  • Page 68: Filter Reminder

    Filter Reminder CLEAN INTERVAL: Enables a timer for the filter notification. Interval at which the Clean Filter notification will turn on. Off to 7200 hours. 616 01 1017 02...

  • Page 69: Hrv (Heat Recovery Ventilation)

    HRV (Heat Recovery Ventilation) Energizes the fan output at the specified speed for HRV ap­ plications DISABLED (Default) MEDIUM HIGH 616 01 1017 02...

  • Page 70: System Maintenance

    System Maintenance Remind Owner of Routine Maintenance This setup is used to adjust the timer interval in which the normal System Maintenance notification is turned on for the homeowner. 6 to 24 months, (default = 12 months) 616 01 1017 02...

  • Page 71: Service Menus

    Service Menus Status The Status screens will show all of the current operating parameters of each installed piece of equipment. Heat Stage (Furnace) Displays stage of heat that the furnace is currently delivering. OFF, LOW, HIGH % capacity (modulating furnace only) Electric Heat (Fan Coil) Displays stages of electric heat that the fan coil is currently delivering.

  • Page 72: Airflow Cfm

    OFF, LOW, MED, HIGH Airflow CFM Cubic Feet per Minute of air the blower is currently deliver­ ing. (model dependent) Inducer RPM (90% furnaces only) Inducer motor RPM value. Blower RPM Actual RPM feedback from indoor blower motor. Lockout Timer If a lockout timer is active, this will show the current time value.

  • Page 73: Outdoor Coil Temp

    Outdoor Coil Temp Temperature of the outdoor unit coil (only available on 2­stage communicating outdoor units). ºF or ºC (default = ºF) Last 10 System Events This screen will show last 10 events that occurred throughout the system. Each entry has the time and date incident recorded.
  • Page 74 616 01 1017 02...

  • Page 75: Run/Fault History

    Run/Fault History The indoor unit and outdoor unit (if communicating) have the following histories: Cycle Counters Number of heat/cool/power cycles the unit has performed. Run Timers Lifetime hours of operation in heating, cooling, and how long the unit has been powered. 616 01 1017 02...

  • Page 76: Appendix - Wiring Diagrams

    Appendix – Wiring Diagrams Communicating Indoor Unit with Communicating AC/HP Communicating Indoor AC or HP Unit Green Yellow White Wall Control 616 01 1017 02...
  • Page 77 Communicating Indoor Unit with with Single Stage Non-Communicating AC Indoor Unit Green Yellow White 1-Stage AC Y/Y2 Wall Control Sensor 616 01 1017 02...
  • Page 78 Communicating Indoor Unit with Single Stage Non-Communicating HP Fan Coil Green Yellow White 1-Stage HP Wall Control Sensor 616 01 1017 02...
  • Page 79 Communicating Indoor Unit with Two Stage AC/HP NAXA00101DB Fan Coil Green Yellow White 2-Stage AC or HP S2 DX+ Wall Control Sensor 616 01 1017 02...
  • Page 80 Non-Communicating Indoor Unit with Non-Communicating Outdoor Wall Control NAXA00101DB Green White Yellow Non-Communicating Outdoor Y/Y2 Non-Communicating Indoor Sensor 616 01 1017 02...
  • Page 81 EInternational Comfort Products, LLC PO Box 128 S Lewisburg, TN 37091 USA 616 01 1017 02...

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