Preliminary - This Information May Change GLAS
Preliminary - this information may changeGLASInstallation Instructions
SupportPreliminary - this information may changeIf at any point you need assistance, we’re here to help.Visit www.glas.johnsoncontrols.com/support for how-to videos and frequently askedquestions.Can’t find what you’re looking for? Give us a call at 1-833-297-4527(GLAS) and ourtechnical team can walk you through it.Before you start, download the GLAS app for easy installation.Google Play and the Google Play Logo are marks and/or registered marks of Google LLC. Apple, the Apple Logo and App Store aremarks and/or registered marks of Apple Inc.GLAS smart thermostat installation instructions - 2018 Johnson Controls1
Preliminary - this information may changeIncluded in the boxGLAS smart thermostatAir seal2x 1-1/2" Pan-head Phillips screws2x 1" Pan-head Phillips screws2x 1" Flat-head Phillips screwsWall plate4x Drywall anchorsC-wire adapterWiring stickersQuick start guideTools requiredScrewdriver2Drill with 1/4" bitLevelGLAS smart thermostat installation instructions - 2018 Johnson Controls
Preliminary - this information may changeCompatibilityGLAS is compatible with most 24 VAC heating and cooling systems.Use the compatibility checker to ensure your system will work with GLAS by going r.HeatingOne or two stagesCoolingOne or two stagesHeat PumpOne or two stages with one or two stages auxiliary heatFanSingle-speed fanAuxiliaryHumidifier, dehumidifier, or ventilator (including HRV or ERV)GLAS smart thermostat installation instructions - 2018 Johnson Controls3
Preliminary - this information may changeTerminal descriptionsNote: If you have only one R wire, connect to RC.Note: If you are removing an existing thermostat, remove any jumper wires between R andRH or RC and RH. You will not need these for GLAS.Y1First stage of cooling or first stage heat pumpY2Second stage of cooling or second stage heat pumpW1 First stage of conventional heating or first stage auxiliary heat for heat pump systemsW2 Second stage of conventional heating or second stage of auxiliary heat for heatpump systemsG4FanGLAS smart thermostat installation instructions - 2018 Johnson Controls
Preliminary - this information may changeTerminal descriptionsO/BHeat pump reversing valve (supports both O type and B type)AUXAuxiliary - humidifier, dehumidifier, or ventilatorRc24 VAC CoolRh24 VAC HeatC24 VAC CommonGLAS smart thermostat installation instructions - 2018 Johnson Controls5
Preliminary - this information may changeIMPORTANT: If your thermostat is built into the wall and connected tothick wires with wire nuts, or if it is labeled 110, 120, or 240 volts, you havea high voltage system that is not compatible with the GLAS Thermostat.Do not connect your thermostat to these high voltage wires. GLAS is onlycompatible with 24 VAC systems.6GLAS smart thermostat installation instructions - 2018 Johnson Controls
Preliminary - this information may changeTo begin installation, turn off system power1. Turn off all power to your heating or cooling system at the HVAC unit’selectrical switch or the breaker box for the building to avoid electrocution or shock.Note: If you are not replacing an existing thermostat, skip to Step 6.2. If you want to check your system power, adjust the temperature on your current thermostatand wait a few minutes to ensure that your heating or cooling does not power on.WARNING: Risk of Electric Shock.Turn off the power supply before making electrical connections. Contactwith components carrying hazardous voltage can cause electric shock andmay result in severe personal injury or death. If you have any doubts aboutproperly installing the device, please contact a professional installer.GLAS smart thermostat installation instructions - 2018 Johnson Controls7
Preliminary - this information may changeCheck old wiring3. If you are replacing an existing thermostat, remove the front plate of your oldthermostat and take a picture of the current wire colors and connections.This picture will come in handy when connecting your new thermostat.8GLAS smart thermostat installation instructions - 2018 Johnson Controls
Preliminary - this information may changeRemoving your old thermostat4. Before removing the wires from your thermostat terminals, use the included wiringstickers to label your wires.5. Disconnect your old thermostat and remove the backplate.Note: While disconnecting your old thermostat, use drywall-safe tape to secure thewires and keep them from falling back into the wall.GLAS smart thermostat installation instructions - 2018 Johnson Controls9
Preliminary - this information may changeInstalling your GLAS6. Remove the front plate by pulling thecenter of the silver cover toward you fromthe bottom.Note: Do not pull on the black sensor barwhile removing the front plate as thiscould damage the device.7. Use a level and the included wall plate tomark the wall where you plan to hang thethermostat. Then drill the holes usingthe 1/4” drill bit and push in the drywallanchors.10GLAS smart thermostat installation instructions - 2018 Johnson Controls
Preliminary - this information may changeInstalling your GLAS8. Remove the liner over the air sealadhesive and align the seal with the drillholes on the back side of the GLASdevice. Lightly press to secure.Note: If you are using the optional backplate, secure between the wall and theGLAS before screwing in the device.9. Pull all of the wires through both the airseal and terminal opening in the GLASsmart thermostat. Press firmly on thewires to push them through the air seal.GLAS smart thermostat installation instructions - 2018 Johnson Controls11
Preliminary - this information may changeAttaching your GLAS10. Loosely attach your GLAS to the anchorsinstalled in the wall using the includedscrews.11. Use a level to straighten thethermostat and tighten the screws untilsnug. Do not overtighten.12GLAS smart thermostat installation instructions - 2018 Johnson Controls
Preliminary - this information may changeConnect optional C-wire adapterNote: If you have a C-wire at your thermostat, skipto Step 16. If you do not have a C-wire to poweryour thermostat, use the included C-wire adapter toprovide power.12. Remove the cover of your furnace or air handlingunit to access the control board and take a pictureof the current wiring for reference.13. In your HVAC equipment, disconnect theY, W, R, or G thermostat wires that are currentlyconnected to the control board. Do notdisconnect any of the other wires.GLAS smart thermostat installation instructions - 2018 Johnson Controls13
Preliminary - this information may changeConnect the C-wire adapter14. Remove the adapter cover and connect thenow disconnected Y, W, R, or G wires tothe corresponding terminal on the C-wireadapter.15. Connect the five labeled wires on theadapter to the corresponding terminals onthe control board.Y (1)W(2)R (3)G (4)Note: See pages 20-22 for wiring configurations.Note: Connections for the G, Y, and R wiresare required to support the adapter.14GLAS smart thermostat installation instructions - 2018 Johnson Controls
Preliminary - this information may changeWiring your GLAS16. Use the picture you took of your old wiring and the wiring stickers as a reference andconnect the wires to the corresponding terminals on your new GLAS.See pages 23-43 for wiring examples.Note: Depending on the features of your furnace or air handler, you may not have aconnection for every terminal.GLAS smart thermostat installation instructions - 2018 Johnson Controls15
Preliminary - this information may changeAttach the front plate17. Before replacing the cover, remove thered tab to the right of the wiringterminals by pulling straight out. Thiswill enable the backup battery in yourdevice.18. Make sure any excess wire is flushagainst the device and press the frontplate until you hear a click.16GLAS smart thermostat installation instructions - 2018 Johnson Controls
Preliminary - this information may changePowering on your heating and cooling system19. Return to your heating and cooling system switch or breaker box to turn the power back on.20. Once power has been switched on, wait for the welcome screen with the GLAS logo andselect Tap to continue. After continuing, you will be prompted to accept the End UserLicense Agreement and then the Privacy Notice and Terms of Service to accessInternet-enabled features.21. You will be prompted to confirm your wiring. If any wires were incorrectly detected, tap tocorrect them.22. Follow the instructions on the device screen to complete the setup for your heating andcooling system.GLAS smart thermostat installation instructions - 2018 Johnson Controls17
Preliminary - this information may changeWIRINGDIAGRAMSNOTE: Wire colors are for reference only. Not every installation will have wires of the samecolor. If you are unsure of how to properly install the unit, please contact a licensedelectrician or a professional HVAC installer before attempting the installation.18GLAS smart thermostat installation instructions - 2018 Johnson Controls
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Preliminary - this information may changeHeating and Cooling without C-wire (Optional AUX)GLASCAir Handler Control BoardAUXRCGW1Y1W2Y2RHOC-wire adapterYWYWIRES IN WALLTO GLAS DEVICEY1W1RCGWORGRC AUXGCY (1)W(2)R (3)G (4)To GLAS*Any additional wires shouldbypass the C-wire adapterAUX20GLAS smart thermostat installation instructions - 2018 Johnson Controls
Preliminary - this information may changeCooling Only without a C-wire (Optional AUX)GLASAir Handler Control BoardCAUXRCGW1Y1W2Y2RHOC-wire adapterYWYY1WIRES IN WALLTO GLAS DEVICEOWRGRC AUXGCY (1)W(2)RCGR (3)G (4)To GLAS*Any additional wires shouldbypass the C-wire adapterAUXGLAS smart thermostat installation instructions - 2018 Johnson Controls21
Preliminary - this information may changeHeat Pump with Auxiliary Heat without C-wire (Optional AUX)GLASAir Handler Control BoardCAUXRCGW1Y1W2Y2RHOC-wire adapterYWYWIRES IN WALLTO GLAS DEVICEY1W1RCGWORGRC AUXGCY (1)W(2)R (3)G (4)To GLAS*Any additional wires shouldbypass the C-wire adapter22OAUXGLAS smart thermostat installation instructions - 2018 Johnson Controls
Preliminary - this information may changeTraditional AC and HeatHVAC System Control Boardredwee Povice nrnac De RuFu AUX RFurnaceCOutdoor AC UnitCAUXRCGW1Y1W2Y2RHOGLAS smart thermostat installation instructions - 2018 Johnson ControlsCRCHeatStage 1FanCoolStage 1CRCW1GY123
Preliminary - this information may changeHeat PumpHVAC System Control Boardredweee Povic nrnac De RuFu AUX RCRCFanCRCGCompressor ReversingStage 1ValveFurnaceY1OCHeat Pump24CAUXRCGW1Y1W2Y2RHOGLAS smart thermostat installation instructions - 2018 Johnson Controls
Preliminary - this information may changeOne Stage Heat Pump with One Stage Auxiliary HeatHVAC System Control BoardCRCAux HeatStage 1FanCRCW1GCompressorCommand ReversingStage 1ValveFurnaceredweee Povic nrnac De RuFu AUX RY1OCHeat PumpCAUXRCGW1Y1W2Y2RHOGLAS smart thermostat installation instructions - 2018 Johnson Controls25
Preliminary - this information may changeTraditional Heatredwee Povice nrnac De RuFu AUX RCFurnace26CAUXRCGW1Y1W2Y2RHOHVAC SystemControl BoardCRCHeatStage 1CRCW1NOTE: When there is onlyone transformer, the RC terminalis used.NOTE: Forced air heating systemsoften have a G wire to run the fanindependently, but not all systemsuse a G wire.GLAS smart thermostat installation instructions - 2018 Johnson Controls
Preliminary - this information may changeTraditional ACHVAC System Control BoardCRCFanCoolStage 1CRCGY1Air Handlerredwee Povice nrnac De RuFu AUX RCOutdoor AC UnitCAUXRCGW1Y1W2Y2RHOGLAS smart thermostat installation instructions - 2018 Johnson Controls27
Preliminary - this information may changeSelf-Powered Auxiliary DeviceHVAC SystemControl BoardCCRSwitchAUX DeviceAUXRCRelay24 VACAUX DeviceCAUXCAUXRCGW128CoilRCY1W2Y2RHOGLAS smart thermostat installation instructions - 2018 Johnson Controls
Preliminary - this information may changeFurnace-Powered Auxiliary DeviceAn integrated auxiliary system is built into a furnace or air handler that shares the samepower supply as the rest of the system and only requires a single control wire.GLAS smart thermostat installation instructions - 2018 Johnson Controls29
Preliminary - this information may changeFurnace-Powered Auxiliary DeviceHVAC System Control BoardCRCHeatStage 1FanCoolStage 1AUXCRCW1GY1AUXAUX Deviceredweee Povic nrnac De RuFu AUX RCFurnace30CAUXRCGW1Y1W2Y2RHOGLAS smart thermostat installation instructions - 2018 Johnson Controls
Preliminary - this information may changeTwo Wire Auxiliary Device without C TerminalAn auxiliary device that has two terminals with the same label (HUM, DEHUM, or AUX)and no C terminal requires a relay pack for operation.Note: For information on how to obtain a relay pack, contact the nearest JohnsonControls representative.1. Connect the relay pack coil between the auxiliary device and C terminal on your GLAS device.2. Connect the switch side of the relay pack to the two terminals on the AUX device.GLAS smart thermostat installation instructions - 2018 Johnson Controls31
Preliminary - this information may changeTwo Wire Auxiliary Device without C TerminalAUX DeviceHUM 1 HUM 2HVAC SystemControl BoardCRelayHumidifier32SwitchRC24 VACCAUXRCGW1Y1W2Y2RHOCCoilRCAUXGLAS smart thermostat installation instructions - 2018 Johnson Controls
Preliminary - this information may changeTwo Wire Auxiliary Device with C TerminalAn auxiliary device with one C terminal that does not require a relay pack for operation.1. Connect the C terminal of the device to the C terminal on the furnace or air handler.2. Connect the AUX terminal of your GLAS device to the control terminal on theauxiliary device.GLAS smart thermostat installation instructions - 2018 Johnson Controls33
Preliminary - this information may changeTwo Wire Auxiliary Device with C TerminalHVAC SystemControl BoardC2-Wire AUX DeviceAUX DeviceCRCCCAUXRCGW134RCAUXAUXCY1W2Y2RHOGLAS smart thermostat installation instructions - 2018 Johnson Controls
Preliminary - this information may changeDual-Stage HeatHVAC System Control BoardCRHeatStage 1HeatStage 2CRW1W2redweeice Poev nrnac D RuFu AUX RCFurnaceCAUXRCGW1Y1W2Y2RHOGLAS smart thermostat installation instructions - 2018 Johnson Controls35
Preliminary - this information may changeDual-Stage ACHVAC System Control BoardAir Handlerredweee Povic nrnac De RuFu AUX RCRCFanCRCGCoolStage 1Y1CoolStage 2Y2CAC Unit36CAUXRCGW1Y1W2Y2RHOGLAS smart thermostat installation instructions - 2018 Johnson Controls
Preliminary - this information may changeDual-Stage Heat and Traditional ACHVAC System Control Boardredweee Povic nrnac De RuFu AUX RFurnaceCRCCRCHeatHeatStage 1 Stage 2W1W2FanCoolStage 1GY1CAC UnitCAUXRCGW1Y1W2Y2RHOGLAS smart thermostat installation instructions - 2018 Johnson Controls37
Preliminary - this information may changeDual-Stage Heat and Dual-Stage ACHVAC System Control Boardredweee Povic nrnac De RuFu AUX RFurnaceCRCHeatStage 1HeatStage 2FanCRCW1W2GCoolStage 1Y1CoolStage 2Y2CAC Unit38CAUXRCGW1Y1W2Y2RHOGLAS smart thermostat installation instructions - 2018 Johnson Controls
Preliminary - this information may changeDual-Stage Heat PumpHVAC System Control BoardCRCGCRCGCompressor CommandsHeat/CoolReversingStage 1 Stage 2ValveFurnaceredweee Povic nrnac De RuFu AUX RCHeat PumpCAUXRCGW1Y1W2Y2RHOGLAS smart thermostat installation instructions - 2018 Johnson ControlsY1Y2O39
Preliminary - this information may changeDual-Stage Heat Pump with Auxiliary HeatHVAC System Control BoardFurnaceAux Heat Commands Compressor CommandsHeat/CoolReversingHeatValveStage 1FanStage 1 Stage 2CRCCRCW1GY1Y2Oredweeice Poev nrnac D RuFu AUX RCHeat Pump40CAUXRCGW1Y1W2Y2RHOGLAS smart thermostat installation instructions - 2018 Johnson Controls
Preliminary - this information may changeHeat Pump with Dual-Stage Auxiliary HeatHVAC System Control BoardHeat PumpCAUXRCGW1Y1W2Y2RHOGLAS smart thermostat installation instructions - 2018 Johnson ControlsCAux Heating Commands Compressor CommandsHeatHeatCool ReversingRCStage 1 Stage 2FanStage 1 ValveCRCW1W2GY1O41
Preliminary - this information may changeTraditional Heat/AC with Dual TransformersBoiler/Heat Control BoardCRW142RCAUXRCGW1BoilerAir Handler/CoolingControl BoardCY1GAir Handlerredweee Povic nrnac De RuFu AUX RCY1W2Y2RHOOutdoor AC UnitGLAS smart thermostat installation instructions - 2018 Johnson Controls
Preliminary - this information may changeRegulatory information to userFCC Part 15C/Industry Canada Radio Equipment Standards1. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmfulinterference, and (2) this device must accept any interference received, including interference that may cause undesired operation.2. This device complies with Industry Canada’s license-exempt RSSs. Operation is subject to the following two conditions:(1) This device may not cause interference; and(2) This device must accept any interference, including interference that may cause undesired operation of the device.Cet appareil est conforme aux flux RSS exemptés de licence d’Industrie Can-ada. L’opération est soumise aux deux conditions suivantes:(1) Cet appareil ne doit pas provoquer d’interférence; et(2) Cet appareil doit accepter toute interférence, y compris les interférences pouvant entraîner un fonctionnement indésirable de l’appareil.CAN ICES-3 (B)/NMB-3(B)RF Safety Statement· This device complies with the RF safety requirements for Canada and the USA as per RSS-102 and FCC Part 1.1310, RF Exposureradiation limits for the General Population / Uncontrolled Exposure.· This device shall be installed to maintain a separation distance of at least 20 cm (8 in) from the general population.Changes or modifications not expressly approved by Johnson Controls will void your authority to operate this device. Warranty can be found atwww.glas.johnsoncontrols.com/legal/warranty.GLAS smart thermostat installation instructions - 2018 Johnson Controls43
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Preliminary - this information may changePart No. 24-11158-00016, Rev. D
Google Play and the Google Play Logo are marks and/or registered marks of Google LLC. Apple, the Apple Logo and App Store are . GLAS smart thermostat installation instructions - . 4x Drywall anchors Wiring stickers Wall plate C-wire adapter Quick start guide Screwdriver Dri
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