Wi-Fi® Remote Access NOW AVAILABLE! Now zoning capable! Wi-Fi® Remote Access NOW AVAILABLE! C O M M U N I C A T I N G S Y S T E M X X X X X X X X X X X o o o o o o o o PLAYBOOK How to win with the new Observer® communicating system

C O M M U N I C A T I N G S Y S T E M This playbook is a quick-reference guide to help you call the right play to give your customers a big home comfort win with most applications of the Observer® communicating system. This playbook gives you easy access to four types of information. FIRST, NEW WI-FI®1 PLAYS. This quick-start guide gives you two options for connecting the Observer wall control’s Wi-Fi system to a homeowner’s Internet connection. This new feature will enable homeowners to access their home comfort systems from certain smart phones, tablets or computers2. PLAY #W-1: SCREEN PASS – Pass control of the Observer system directly through the homeowner’s wireless LAN/router and internet connection. PLAY #W-2: HAND OFF – If a homeowner has Internet access but no existing Wi-Fi network or a wireless network that is not compatible with the Observer communicating wall control, an Observer wireless access point can hand off system control to the homeowner’s Internet connection. SECOND, THE BASIC PLAYS. Nine options for setting up a communicating system with the Observer wall control. PLAY #1: TWO-MINUTE DRILL – Set up a communicating furnace/fan coil with a two-stage communicating outdoor unit. PLAY #2: STRAIGHT UP THE MIDDLE – Set up a communicating furnace/fan coil with a single-stage communicating outdoor unit. 1Wi-Fi is a registered trademark of Wi-Fi Alliance Corporation. 2When the Observer wall control is connected to the Internet through a Wi-Fi network. 2

C O M M U N I C A T I N G S Y S T E M PLAY #3: HALFBACK PASS – Communicating furnace/fan coil and non-communicating single-stage AC. PLAY #4: HALFBACK DB OPTION – Communicating furnace/fan coil with non-communicating two-stage AC. PLAY #5: FULLBACK DB SWEEP – Non-communicating furnace/fan coil with non-communicating AC or HP. PLAY #6: OUTSIDE OPTION PACKAGE – Non-communicating small package products (SPP). PLAY #7: HITCH ‘N GO – How to set up the outdoor temperature display with a communicating AC or HP. PLAY #8: END RUN – How to set up the outdoor temperature display with a non-communicating outdoor unit. PLAY #9: TWO-POINT CONVERSION – How to set up Remote Room Sensors with any system. THIRD, DETAILS. Once you’ve called the play, you can check the Observer communicating system playbook to see example wiring diagrams to help you execute the play to perfection. FOURTH, ZONING. Use these four plays to make setup of a zoned system simple. PLAY #Z-1: ZONE READ – How to use the Observer wall control with room sensors only. PLAY #Z-2: ZONE BLITZ – How to use Observer wall controls as remote room sensors. PLAY #Z-3: COVER 6 – How to use a combination of wall controls and room sensors. PLAY #Z-4: DB ZONE – How to use wall controls and room sensors with a daughter board. 3

PLAY #W-1: SCREEN PASS Observer wall control connects directly to the homeowner’s wireless router. NOTES: Wall control sends wireless signal directly to the homeowner’s LAN/wireless router. Homeowner’s LAN/wireless router accesses MyObserverComfort.com via the homeowner’s Internet connection. Homeowner accesses the system remotely through a secure web portal on MyObserverComfort.com. Cable/Wire to Internet Service Provider (ISP) TSTAT0201CW Homeowner’s MyObserverComfort.com via homeowner’s internet connection Homeowner’s Smartphone LAN/Wireless Router IN THE HOME INTERNET, CLOUD MOBILE DEVICES 4

PLAY W-2: HAND OFF Observer wall control connects to the homeowner’s Internet connection through a dedicated Observer wireless access point. NOTES: Wall control sends wireless signal to the Observer wireless access point. Wireless access point NAXA00101WA hands off the signal to the homeowner’s LAN/wireless router. Homeowner’s LAN/wireless router accesses MyObserverComfort.com via the homeowner’s Internet connection. Homeowner accesses the system remotely through a secure web portal on MyObserverComfort.com. Observer Dedicated INTERNET, CLOUD MOBILE DEVICES Wireless Access Point MyObserverComfort.com via homeowner’s internet connection Homeowner’s Smartphone Ethernet Cable TSTAT0201CW Cable/Wire to Internet Service Provider (ISP) IN THE HOME Homeowner’s LAN/Wireless Router

PLAY #1: TWO-MINUTE DRILL Wi-Fi capability NOW AVAILABLE! PLAY #1: TWO-MINUTE DRILL Indoor: Communicating Furnace or Fan Coil Outdoor: Communicating Two-Stage AC or HP NOTES: 4 wires from wall control to indoor, ONLY 2 WIRES FROM INDOOR TO OUTDOOR!* TSTAT0201CW self-configures the system upon initial startup.* Outdoor unit includes OD Temp Sensor, communicates back to stat across the 2 wires.* Communication between each system component.* Wi-fi capability NOW AVAILABLE! *Standard thermostats, even new Wi-Fi models, can’t do this3! TSTAT0201CW Furnace or Fan Coil with Observer™ Communicating System Two-Stage AC/HP with Observer Communicating System 3Full Observer system functionality and features are available when a complete Observer Communicating HVAC system is installed, including wall control, indoor and outdoor units, and zoning system.

PLAY #2: STRAIGHT UP THE MIDDLE Wi-Fi capability NOW AVAILABLE! PLAY #2: STRAIGHT UP THE MIDDLE Indoor: Communicating Furnace or Fan Coil Outdoor: Communicating Single-Stage AC or HP NOTES: 4 wires between each system component.* TSTAT0201CW self-configures the system upon initial startup.* Outdoor unit includes OD Temp Sensor, communicates back to stat across the 4 wires.* Communication between each system component.* Wi-fi capability NOW AVAILABLE! *Standard thermostats, even new Wi-Fi models, can’t do this! TSTAT0201CW Furnace or Fan Coil with Observer™ Communicating System Single-Stage AC/HP with Observer Communicating System

Wi-Fi capability NOW AVAILABLE! PLAY #3: HALFBACK PASS Indoor: Communicating Furnace or Fan Coil Outdoor: Non-Communicating Single-Stage AC NOTES: TSTAT0201CW communicates and self-configures with furnace/fan coil only.* No communication or self configuration with outdoor unit. Furnace board will drive AC across 2 wires: Y and C (call for cooling and common). Outdoor temperature sensor, if required, purchased as separate accessory, and connected to furnace or fan coil. TSTAT0201CW *Standard thermostats can’t do this! Furnace or Fan Coil with Observer Communicating System Non-Communicating Single-Stage AC

PLAY #4: HALFBACK DB OPTION Indoor: Communicating Furnace or Fan Coil Wi-Fi capability NOW AVAILABLE! PLAY #4: HALFBACK DB OPTION Indoor: Communicating Furnace or Fan Coil Outdoor: Non-Communicating Two-Stage AC or any HP NOTES: NAXA00101DB is existing “Daughter Board”. Daughter Board “converts” 4-wire communicating control to conventional multi-wire control.* Daughter Board mounts indoors, inside furnace/fan coil or wherever convenient. TSTAT0201CW communicates and self-configures with furnace/fan coil only.* No communication or self configuration with outdoor unit. Outdoor temperature sensor, if required, purchased as separate accessory, and connected to furnace or fan coil. NAXA00101DB TSTAT0201CW Furnace or Fan Coil with Non-Communicating Two-Stage AC or Any Heat Pump Observer Communicating *Standard thermostats can’t do this! System

PLAY #5: FULLBACK DB SWEEP Wi-Fi capability NOW AVAILABLE! PLAY #5: FULLBACK DB SWEEP Indoor: Non-Communicating Furnace or Fan Coil Outdoor: Non-Communicating AC or HP NOTES: NAXA00101DB is existing “Daughter Board”. Daughter Board “converts” 4-wire communicating control to conventional multi-wire control.* Daughter Board mounts indoors, inside furnace/fan coil or wherever convenient. No communication or self configuration with indoor or Non- Communicating Furnace or Fan Coil outdoor unit. Outdoor temperature sensor, if required, purchased as separate accessory, and connected to Daughter Board. NAXA00101DB TSTAT0201CW Non- Communicating AC/HP *Standard thermostats can’t do this! 10

Wi-Fi capability NOW AVAILABLE! PLAY #6: OUTSIDE DB OPTION PACKAGE Indoor/Outdoor: Non-Communicating SPP NOTES: NAXA00101DB is existing “Daughter Board”. Daughter Board “converts” 4-wire communicating control to conventional multi- wire control.* Daughter Board mounts indoors, not designed for outdoor use. No communication or self configuration with SPP. Outdoor temperature sensor, if required, purchased as separate accessory, and connected to Daughter Board. TSTAT0201CW NAXA00101DB *Standard thermostats can’t do this! Non-Communicating SPP

Outdoor Temperature Display Communicating AC or HP Wi-Fi capability NOW AVAILABLE! PLAY #7: HITCH ‘N GO Outdoor Temperature Display Communicating AC or HP NOTES: OD Temp Sensor is factory installed on the outdoor unit control board. OD temp communicated back to stat across the 4 wires (only 2 wires from indoor to outdoor with 2-stage condensers).* Factory Installed OD Temp Sensor 85° Outside (only 2 wires with 2-stage condensers) TSTAT0201CW *Standard thermostats can’t do this! AC/HP with Observer Communicating System

Wi-Fi capability NOW AVAILABLE! PLAY #8: END RUN Outdoor Temperature Display Non-Communicating AC, HP, or SPP NOTES: OD Temp Sensor NOT included with TSTAT0201CW wall control. OD Temp Sensor accessory TSTATXXSEN01B mounts outside. Dedicated terminals on NAXA00101DB receive OD Temp Sensor signal. NAXA00101DB relays OD temp to stat across the 4 wires.* Non-Communicating AC/HP TSTAT0201CW NAXA00101DB OD Temp Sensor TSTATXXSEN01B

PLAY #9: TWO-POINT CONVERSION Remote Room Sensor Wi-Fi capability NOW AVAILABLE! PLAY #9: TWO-POINT CONVERSION Remote Room Sensor Independent from Type of Equipment NOTES: Remote Room Sensor accessory SYSTXIIRRS01. Remote Room Sensor is optional—not required. Dedicated terminals on TSTAT0201CW receive Remote Room Sensor signal. Choose to sense only remote, only onboard, or average temperatures from both remote and onboard. Remote Room Remote Room Sensor SYSTXIIRRS01 TSTAT0201CW

PLAY #1: TWO-MINUTE DRILL/DETAILS Example Wiring Diagram Communicating Furnace and Two-Stage AC/HP Communicating Two-Stage AC or HP Indoor Unit Green A DX+ Yellow B DX- White C Red D TSTAT0201CW S1 S2 DX+ R Wall Control C DX- NOTES: Upon power-up, TSTAT0201CW wall control will seek and find attached equipment. S1 and S2 are remote room temperature sensor terminals.

PLAY #2: STRAIGHT UP THE MIDDLE/DETAILS Example Wiring Diagram Communicating Furnace and Single-Stage AC/HP Communicating Single-Stage AC or HP Indoor Unit Green A DX+ Yellow B DX- White C C Red D R TSTAT0201CW S1 S2 DX+ R Wall Control C DX- NOTES: Upon power-up, TSTAT0201CW wall control will seek and find attached equipment. S1 and S2 are remote room temperature sensor terminals.

PLAY #3: HALFBACK PASS/DETAILS FOR AC Example Wiring Diagram Communicating Furnace Non-Communicating Single-Stage AC NOTES: Upon power-up, TSTAT0201CW wall control will seek and find indoor equipment. Indoor Unit Green Wall control will prompt for A outdoor equipment definition. OAT is accessory TSTATXXSEN01B Outdoor Air Temperature sensor. Yellow B White C Red D 1-Stage AC TSTAT0201CW S1 S2 DX+ COM C R C DX- Wall Control Y/Y2 Y OAT Sensor OAT

PLAY #3: HALFBACK PASS/DETAILS FOR HP Example Wiring Diagram Communicating Fan Coil Non-Communicating Single-Stage HP NOTES: Upon power-up, TSTAT0201CW wall control will seek and find indoor Fan Coil Green equipment. A Yellow Wall control will prompt for outdoor equipment definition. OAT is accessory TSTATXXSEN01B Outdoor Air Temperature sensor. TSTAT0201CW S1 S2 B White C Red D 1-Stage HP C R O C R O W2 Y DX+ R C DX- Wall Control W Y OAT Sensor OAT

PLAY #4: HALFBACK DB OPTION/DETAILS Example Wiring Diagram Communicating Fan Coil Non-Communicating Two-Stage AC/HP NOTES: Upon power-up, Fan Coil NAXA00101DB Green A DX+ TSTAT0201CW wall control will seek and find indoor Yellow B DX- White C C equipment. Red D R Wall control will prompt for outdoor equipment 2-Stage AC or HP definition. NAXA00101DB is accessory Daughter Board. OAT is accessory TSTATXXSEN01B Outdoor Air C C R Y2 R Y2 W2 S1 S2 DX+ R C DX- Wall Control TSTAT0201CW W2 Y G W1 O Y G W O Temperature sensor. OAT Sensor OAT

PLAY #5: FULLBACK DB SWEEP/DETAILS Example Wiring Diagram Non-Communicating Furnace or Fan Coil Non-Communicating AC/HP Wall Control NAXA00101DB Green DX+ DX+ Red TSTAT0201CW R R White C C Yellow Non- Communicating Outdoor NOTES: Upon power-up, TSTAT0201CW wall control will prompt for both indoor and outdoor equipment definition. NAXA00101DB is accessory Daughter Board. OAT is accessory TSTATXXSEN01B Outdoor Air Temperature sensor. DX- DX- C R C C R Y2 W2 Y G W1 O R Y2 W2 W2 Y/Y2 Y G W O G W1 Non- Communicating Indoor OAT Sensor OAT 20

PLAY #6: OUTSIDE OPTION PACKAGE/DETAILS Example Wiring Diagram Non-Communicating SPP Wall Control NAXA00101DB TSTAT0201CW Green DX+ DX+ Red R R White C C Yellow NOTES: Upon power-up, TSTAT0201CW wall control will prompt for both indoor and outdoor equipment definition. NAXA00101DB is accessory Daughter Board. OAT is accessory TSTATXXSEN01B Outdoor Air Temperature sensor. DX- DX- SPP C R Y2 W2 C R Y2 W2 Y G Y G W O W1 O OAT Sensor OAT

PLAY Z-1: ZONE READ Observer wall control with room sensors only. NOTES: Wall control established zone 1 and provides set-points for all other zones. Remote Room Sensors monitor temperature for zones 2 – 6 (no adjustments). Also required: LAT (Leaving Air Temp Sensor) Barometric Relief Damper Field-supplied, dedicated 75VA damper transformer. *separate field-supplied 60VA- 75VA communication bus transformer, when CTS zone sensors are used. *When the Bus Transformer is used, DO NOT connect the R and C power wires from the zoning panel to the indoor unit. Zone 2 Zone 3 Zone 4 Zone 1 Communication Bus Transformer* Zoning Panel Damper TSTAT0201CW Transformer Communicating Furnace or Fan Coil Communicating AC or HP Dampers Up to 3 per zone Zone 1 Zone 2 Zone 3 Zone 4

Communicating Furnace or Fan Coil PLAY Z-2: ZONE BLITZ Observer wall controls used as remote room sensors. NOTES: Observer wall controls are used at all zone locations. From each wall control, set points can be adjusted up or down for any of the zones. There’s no need to go back to zone 1 to make adjustments for other zones in the house. Also required: LAT (Leaving Air Temp Sensor Barometric Relief Damper Field-supplied, dedicated damper 75VA transformer; separate field-supplied 60VA-75VA communication bus transformer, when CTS zone sensors are used. Zone 2 Zone 3 TSTAT0201CW TSTAT0201CW Zone 1 Zoning Panel Communication Bus Transformer Damper TSTAT0201CW Transformer Communicating Furnace or Fan Coil Communicating AC or HP Dampers Up to 3 per zone Zone 1 Zone 2 Zone 3

PLAY Z-3: COVER 6 Observer wall controls in combination room sensors. NOTES: Wall control establishes zone 1. Any mix of wall controls and remote room sensors used at zones 2 - 6. From each wall control, set points can be adjusted up or down for any of the zones. There’s no need to go back to zone 1 to make adjustments for other zones in the house. Remote Room Sensors monitor temperatures only (no adjustments). Also required: LAT (Leaving Air Temp Sensor) Barometric Relief Damper Field-supplied, dedicated 75VA damper transformer; separate field-supplied 60VA- 75VA communication bus transformer, when CTS zone sensors are used. Zone 3 Zone 2 Zone 4 TSTAT0201CW Zone 1 Zoning Panel Communication Bus Transformer Damper TSTAT0201CW Transformer Communicating Furnace or Fan Coil Communicating AC or HP Dampers Up to 3 per zone Zone 1 Zone 2 Zone 3 Zone 4

Communicating Furnace or Fan Coil PLAY Z-4: DB ZONE NOTES: Install Daughter Board between Zoning Panel and equipment to allow any conventional non-communicating equipment to be used with Observer wall controls and room sensors. Also required: LAT (Leaving Air Temp Sensor) Barometric Relief Damper Field-supplied, dedicated 75VA damper transformer; *separate field-supplied 60VA-75VA communication bus transformer, when CTS zone sensors are used. *When the Bus Transformer is used, DO NOT connect the R and C power wires from the zoning panel to the daughter board. Observer wall controls with Daughter Board and non- communicating equipment. Zone 3 Zone 2 Zone 4 TSTAT0201CW Zone 1 Communication Bus Transformer* Zoning Panel NAXA00101DB Daughter Board Damper Transformer TSTAT0201CW NON- Communicating Furnace or Fan Coil NON- Communicating AC or HP Dampers Up to 3 per zone Zone 1 Zone 2 Zone 3 Zone 4

*Standard thermostats, even new Wi-Fi models, can’t do this! How to Win with a Complete Observer® Communicating System: Requires just 4 wires between system components (only 2 wires from indoor to outdoor with 2-stage condensers).* TSTAT0201SCW self-configures the system upon initial startup.* Outdoor unit includes OD Temp Sensor that communicates to stat across the 4-wire connection (2-wire connection from indoor to outdoor for 2-stage condensers).* Text based diagnostic messages.* Constant fan speed options – low, medium & high. Expanded dehumidification capability. Onboard equipment options configurable from the wall control (Example: Quiet Shift Heat Pump).* Communication among all system components. Easier zoning set-up. NEW! Wi-Fi Capability NOW AVAILABLE!* *Standard thermostats, even new Wi-Fi models, can’t do this! C O M M U N I C A T I N G S Y S T E M © 2015 International Comfort Products Part No. 401-06-0500-03 Printed 12/14