R C O M M U N I C A T I N G S Y S T E M Communicating Wall Control With Wi- FiR Capability Installation Manual TSTAT0201CW U.S. Patent No. 7,243,004 U.S. Patent No. 7,775,452 All trademarks are the property of the respective owners. Wi-Fi ® is a registered trademark of the Wi-Fi Alliance Corporation.
Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Set Day and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Set Schedule for All Days . . . . . . . . . . . . . . . . . . . . . . . . . 11 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install/Service Menus – Communicating and Non-Communicating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . Equipment Summary Menu . . . . . . . . . . . . . . . . . . . . . . . Service Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Heat Stage (Furnace) . . . . . . . . . . . . . . . . . . . . . . . . Electric Heat (Fan Coil) . . . . . . . . . . . . . . . . . . . . . . Airflow CFM . . . .
Fan on with W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cooling Lockout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Auxiliary Heat Lockout . . . . . . . . . . . . . . . . . . . . . . . . . . . . Heat Pump Lockout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Minimum Cooling Setpoint . . . . . . . . . . . . . . . . . . . . . . . . Maximum Heating Setpoint . . . . . . . . . . . . . . . . . . . . . . . . Outdoor Air Temperature Offset . . . . . .
Dehum Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Off Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Low Heat Rise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Defrost Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Defrost With Furnace . . . . . . . . . . . . . . . . . . . . . . . . Quiet Shift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Considerations Improper installation, adjustment, alteration, service, maintenance, 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 assistance. The qualified installer or agency must use factory-authorized kits or accessories when modifying this product.
highlight suggestions which will installation, reliability, or operation. result in enhanced Introduction The Observer® communicating system consists of several intelligent communicating components which includes the Observer® Wall Control, and Observer System HVAC equipment such as, variable speed furnace or fan coil, 2-stage AC or HP, which continually communicate with each other via a four-wire communication bus.
network, and the MyObserverComfort web server. See later in these Installation Instructions for information on applying the accessory NAXA00101WA wireless access point, if the existing home network is incompatible with this product.
Quick Start For first time installers, Quick Start will allow a quick start up of the Observer® Control before learning all the details of system operation. However, for the best possible comfort and operation refer to the Owner’s Manual. Set Day and Time NOTE: See the Owner's manual for instructions on utilizing Internet time for date and time synchronization. To set the current time and date, press SETUP; then press TIME/DATE.
A14558 Under date, you can select the month, day, or year buttons; then use the ▲ and ▼ to select the appropriate date. . Under 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. Finally, you can choose whether you observe day light savings time by pressing the ON or OFF button.
DONE to save and exit the information that you have entered. 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. You can create on schedule for all seven days in the week. 1.
A14558 2. Press ▲ under “All Days”, then press EDIT.
3. Press PERIOD; then use the ▲ or ▼ to select the period to change. 4. Press START; then use the ▲ or ▼ to change the time the corresponding period starts. 5. Press HEAT TO; then use the ▲ or ▼ to change the desired heating temperature for that period.
6. Press COOL TO; then use the ▲ or ▼ to change the desired heating temperature for that period. 7. Press DONE after you have completed your edits. 8. Press SAVE to save your new schedule and exit (or press CANCEL to exit without saving.) NOTE: See Owners manual for further details of setting up schedules. Installation Overview This instruction covers installation of the Observer® Control only.
Check Equipment Inspect equipment. File claim with shipping company prior to installation if shipment is damaged or incomplete. Location All wiring must comply with national, local, and state codes. Wall Control The Observer® Control is the command center for the communicating system. It should be located where it is easily accessible and visible to the adult homeowner or end user.
Remote Room Sensors (for non-zoned system) A Remote Room Sensor (Part No. SYSTXIIRRS01) can be used with the Observer® Control to take the place of the control’s internal temperature sensor (This sensor is NOT the same as the Zone Temperature Sensor, even though the part numbers are similar). 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).
Wiring Considerations NOTE: See the Observer® Zone Panel Installation Instructions for wiring of Observer Zoning systems. Ordinary thermostat wire is recommended. Use 22 AWG or larger for normal wiring applications. Continuous wire lengths over 25 ft. should use 18 AWG. Wire lengths over 100 ft are NOT recommended.
b. Disconnect wires from existing thermostat. c. Discard or recycle old thermostat. NOTE: Mercury is a hazardous waste, if existing control contains any mercury, it MUST be disposed of properly. The Observer® Control does not contain mercury. 3. Select Observer Control mounting plastic 4. Route wires through hole in mounting plastic. Level rear plastic against wall (for aesthetic value only - Observer Control need not be level to operate properly) and mark wall through two mounting holes. 5.
NOTE: In a dual fuel installation with a non-communicating heat pump, an OAT sensor must be installed, or the heat pump will not run. Shielded Wire If the thermostat wiring will be located near or in parallel with high voltage wiring, cable TV or Ethernet wiring, then shielded thermostat wire can be used to reduce or eliminate potential interference. The shield wire should be connected to the C terminal, or ground, at the indoor unit.
3.90 5.20 0.97 Fig.
Humidifier Connection A 24VAC bypass or fan powered humidifier may be installed. NOTE: Do Not Use a traditional humidistat to control humidifier operation. If a humidifier is installed, let the Observer® Control operate humidifier. Bypass Humidifiers A bypass humidifier is normally 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.
Commissioning Overview This section addresses initial power up (or commissioning) of an Observer® Control. The wall control will communicate and identify all communicating components in the system. When the Observer Wall Control is first powered up, it will display, Loading Graphics, then Select Function of this Unit. Next it will search for equipment, beginning with the indoor, then the outdoor, and remote room sensors.
NOTE: Image is example only. Software Version may vary. A14559 Once the indoor equipment, outdoor equipment, and zone panel (if applicable) have 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 option to enter THERMOSTAT DEMO MODE or to retry the search for equipment.
MOSTAT DEMO MODE if no communicating equipment is found. If a communicating indoor unit is found, but a communicating outdoor unit or relay board is not found, the installer will be prompted to select the outdoor type; either AC, Heat Pump, or NONE. Selecting Accessories Once the indoor and outdoor equipment have been found or entered, the following screen will appear allowing the Installer to select “HUMIDIFIER INSTALLED”. Press YES or NO to make the appropriate selection.
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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. Brand Selection After the commissioning of the Observer® Control, the installer will be prompted to select the appropriate brand.
Current Software Version Selecting this menu option will display the Software Version, Wi-Fi® Firmware version, Model Number, and Serial Number, for the individual Master Wall Control or Zone Sensor. A14517 Software Updates Software updates will periodically be issued for the Observer® Communicating Wall Control.
Setting Up Remote Access and Wi-Fi® Connection The Observer® Communicating Wall Control can connect through an in-home Wi-Fi® network to connect to the Internet. If the in-home Wi-Fi network or router is found to be incompatible with the Observer wall control, an accessory Observer Wireless Access Point (NAXA00101WA) or any other compatible wireless router can be installed to establish Wi-Fi connectivity.
It is best to place the wireless access point within 75 feet of any devices to be connected to it. This distance will vary based upon the construction of the home, the number of walls and floors to be penetrated, and other devices using the 2.4GHz radio band (wireless telephones, speaker systems, baby monitors, etc., as well as interference from microwave ovens). Wi-Fi® range extenders may also be used if the wall control is located a significant distance away from the Wi-Fi access point or router.
on the bottom of the TP-LINK® wireless access point). You may have to use the arrow at the bottom right of the SSID display screen to scroll to the next screen to find “myHVACxxxxxx”. Install/Service Menus – Communicating and Non-Communicating Mode A14518 The “INSTALLER CONFIGURATION” menus contain vital information. This information enables the Installer or Service person to view a summary of what has been installed, etc. This information is not covered in the Owner’s Manual.
NOTE: The INSTALL / SERVICE menu will automatically exit after 90 seconds of no activity. Equipment Summary Menu This screen shows indoor unit type and model number, outdoor unit type (and model number if a communicating outdoor unit), and any accessories that are installed are recognized.
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. OFF, LOW, MED, HIGH Airflow CFM (select equipment models, only): Cubic Feet per Minute of air the blower is currently delivering.
Blower RPM (select equipment models, only): Actual RPM feedback from indoor blower motor. Lockout Timer: If a lockout timer is active, this will show the current time value. See equipment manual for details on lockout timers. Seconds Single-Stage and Two-Stage Heat Pump/AC Status Stage: (Heat/Cool): Displays stage of heating or cooling that the Heat Pump/AC is delivering.
Suction Temperature Suction Temperature (toggles with Suction Superheat). EXV Position Position of the EXV in percent. Lockout timer If a lockout timer is active, this will show the current time value. See equipment manual for detail on lockout timers. Single-Stage and Two-Stage Heat Pump/AC Status Last 10 System Faults This screen will show last 10 events that occurred throughout the system. Each entry has the time and date incident recorded.
HP = Heat Pump AC = Air Conditioner FN = Furnace FC = Fan Coil Lifetime Run 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. Filter Reminder Select the number of hours of fan operation after which the replace filter reminder shall appear.
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 set-point is changed, the 30 minute timer is deleted. On – Auto mode is available Off – Auto Mode is not available Default = On.
Remote Temperature Sensing The room air temperature can come from one of three sources: the local sensor in the wall control, the remote room air thermistor, or the average of the local and remote sensors. Local – use the local sensor in the wall control Remote – use the remote room sensor (Part No.
Reversing Valve For heat pump applications, the reversing valve will be active with heating or cooling operation.
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 40 616 01 1019 01
Fan on with W An option to turn the fan on with a call for heating ON OFF (default) 616 01 1019 01 41
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.
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.
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 5º-55º F – Outside air temperature below which the heat pump will be locked out and only auxiliary heat will be used.
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 1019 01 45
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) 46 616 01 1019 01
Outdoor Air Temperature Offset This option allows calibration (or deliberate mis-calibration) of the outdoor temperature. This offset is added to the actual temperature values.
Room Air Temperature Offset -5ºF to +5ºF (-3ºC to +3ºC) – Number of degrees added to the actual temperature value Default = 0 48 616 01 1019 01
Smart Recovery This feature applies to programmable operation only. The control will start recovery the selected number of 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 – the number of minutes prior to schedule change that the system will start to recover.
Setpoint Deadband The minimum difference enforced between heating and cooling desired temperatures. This can allow one setting to “push” the other to maintain this difference.
Cycles Per Hour The maximum number of heating or cooling cycles per hour.
Auto Changeover Timer This feature designates the minimum number of minutes between heating and cooling operation when in auto mode.
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.
Humidity Offset This option allows calibration (or deliberate mis-calibration) of the humidity sensor. This offset is added to the actual humidity value. The Test Humidifier option allows the Humidifier to be toggled on and off for testing.
Programming On/Off This feature allows the thermostat to turn off the programming mode and operate as a non-programmable thermostat.
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.
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. NOTE: If the dealer inserts their contact information, including email address, on this screen, the user has the option to automatically send email Notifications and Service Reminders to the dealer directly from the Observer® wall control.
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 Equipment Only Setup Menu This menu has several layers, allowing modification of equipment settings. No settings will need to be made at equipment (i.e. DIP switches on a furnace).
tion of the information that can be found in the INSTALLER SETUP menu.
Airflow Upon a first time start-up of the Observer® Control, the furnace DIP switch settings will be copied to the furnace setup menu. Any changes can then be made from the Observer Control. Heating Airflow Furnace / Fancoil Heating Airflow Selects the airflow of the indoor unit when heating. EFFICIENCY is the airflow used to meet specified ratings, COMFORT is a decreased airflow used to increase the output air temperature and provide increased comfort.
Single-Stage and Two-Stage Heat Pump Heating Airflow COMFORT (default) -- Heat Pump airflow is varied depending 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 2--stage outdoor unit is used. EFF 350 -- Fixed airflow used to achieve specified ratings. This is nominally 350 CFM/ton, but will vary if a 2--stage outdoor unit is used. MAXIMUM -- 400 CFM/ton.
EFF 350 -- fixed airflow used to achieve specified ratings – no dehumidification airflow reduction. This is nominally 350 CFM/ton, but will vary if a 2--stage outdoor unit is used. MAXIMUM -- 400 CFM/ton. No dehumidification airflow reduction. Multistage Heat Pumps Cooling Airflow COMFORT (default) -- cooling airflow is varied depending on humidity and temperature demands settings. This selection enables the full dehumidify and comfort capabilities of the system.
Minimum CFM to run a modulating furnace. This will increase the minimum operating capacity of the furnace. Default value is the furnace air flow for the lowest heat capacity. Maximum CFM (only appears with modulating furnaces) Maximum CFM to run a modulating furnace. This will reduce the operating capacity of the furnace. Default value is the furnace air flow for the highest heat capacity.
Low Heat Rise Set to ON if the system contains a bypass humidifier. The ON setting will increase the furnace low heat airflow.
Defrost Interval Time interval at which defrost cycles can occur on a heat pump.
Defrost With Furnace Choose whether furnace operates during defrost cycle. YES (default) NO Quiet Shift Turns on Quiet Shift function in 1-stage or 2-stage communicating heat pumps.
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Zone Weighting This configuration allows the installer to select the “size” of each zone. Typically, living areas are assigned a larger weight %, or importance factor, than bedrooms and smaller areas. The Zone weight affects what heating and cooling stages are used to condition the calling zones. If only one zone is calling for conditioning and that zones has a low weight, only low stage may be used.
Zone Names Allows the installer to assign a name to each zone. Zone Airflow Control Zone airflow control NOTE: A bypass duct, using a barometric relief damper, is recommended for equipment using a PSC, "X-13" or PWM non-communicating indoor air blower motor (even if the indoor section itself is a communicating unit), and not using the Airflow Capacity setting.
ture, variable speed, CFM-control, communicating, indoor air blower motors, such as some modulating gas furnaces and FEM-style air handlers, should utilize the Airflow Capacity Setting feature. See the Observer Zone Panel Installation Instructions for more details. Bypass Select bypass amount for “zone X” Airflow Capacity This setting is used to limit the allowable zone airflow to prevent excessive air noise from being allowed into a zone.
Damper Type Power Open/Closed (default) Choose this selection for dampers that require power to open and power to close. Spring Return This type of damper requires continuous power to remain open, or to remain closed, depending on the type of damper that is installed. A power open, spring closed damper should be wired to the Common and Open terminals on the damper control module. A power closed, spring open damper should be wired to the Common and Close terminals on the damper control module.
Leaving Air Sensor LAS Heating Lockout - 120° - 200° F (180°F default) LAS Cooling Lockout – 40° – 60°F (45°F default) Disable Zoning Zoning Enabled – Zoning system operates normally. NOTE: Leaving air sensor must be installed for proper operation of zoning system. Zoning Disabled – Zoning operation is disabled. All dampers are driven to the open position. Temperature is controlled by the main Observer® Wall Control. Zone sensors are not used to control temperature when zoning is disabled.
Damper Timing Selects the drive time for the dampers. Selections are 15, 30, 45, 60, 75, 105, and 120 seconds. NOTE: Verify damper manufacturer opening/closing timing requirements. DISABLED (Default) LOW MEDIUM HIGH Heat Recovery Maintenance Energizes the fan output at the specified speed for HRV applications Stage Limiting for Multistage Units For Multistage units there are, dealer selectable minimum and maximum, stage limits for both heating and cooling.
On the cooling screen, there are three (3) selectable items. S Maximum Cooling Stage S Minimum Cooling Stage S Threshold Outdoor Air Temperature above which the minimum cooling stage is applied.
On the heating screen, there are three (3) selectable items. S Maximum Cooling Stage S Minimum Cooling Stage S Threshold Outdoor Air Temperature above which the minimum heating stage is applied. NOTE: The available stages the equipment is able to run is dynamic with respect to outdoor air temperature. If range of available stages is outside of the dealer-selectable, minimum and maximum stage limits, the limts will be temporarily overriden.
Daughter Board When non-communicating equipment is used, the daughter board may be needed. The daughter board provides outputs for non-communicating indoor equipment and non-communicating outdoor equipment. The daughter board should be used in the following applications: S Non-communicating indoor unit with non-communicating outdoor unit. S Communicating furnace with any non-communicating heat pump. S Communicating furnace with any non-communicating two-stage A/C or HP.
Operational Information Auto Mode 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 set-point is changed, the 30 minute timer is deleted. Enable/Disable Auto Changeover mode (default = Enable). Auto Changeover Time may be adjusted 5 to 120 minutes, (default = 30 minutes).
Programming ON (default) - allows program schedule to be set by user. OFF - system becomes non--programmable Smart Recovery This feature applies to programmable operation only. The control will start recovery 90 minutes prior to schedule change in both heating and cooling mode. Refer to operational information for more detail.
Appendix - Wiring Diagrams *Note: R and C required for single stage communicating equipment.
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Non-Communicating Indoor Unit with Non-Communicating Outdoor Wall Control DX+ NAXA00101DB Green DX+ R Red R C White C DX- Yellow DX- Non-Communicating Outdoor C C C R R R Y2 Y2 W2 W2 W2 Y/Y2 Y Y G G G W1 W W1 Non-Communicating Indoor O O OAT OAT Sensor All trademarks are the property of the respective owners. Wi-Fi ® is a registered trademark of the Wi-Fi Alliance Corporation.
