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PTACSTAT---NP---HC,
PTACSTAT---NP---HP
InstallationInstructions
OperatingManual
A07050
Non---Programmable Thermostat
NOTE: Read the entire instruction manual before starting the installation.
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2
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TABLEOFCONTENTS PAGE SAFETY CONSIDERATIONS .................................... 3 INTRODUCTION .............................................. 4 INSTALLATION CONSIDERATIONS.............................. 4 INSTALLATION ............................................... 5 Step 1 —ThermostatLocation ................................... 5 Step2—InstallThermostat...................................... 6 Step3—SetThermostatConfiguration ........................... 11 Step 4 —Check ThermostatOperation ......
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signifies a hazard which could result in personal injury or death. CAUTION is used to identify unsafe practices which may result in minor personal injury or productandpropertydamage.NOTEisusedtohighlightsuggestionswhichwill result in enhanced installation, reliability, or operation. INTRODUCTION Carrier’s PTAC Comfortt Series non--programmable thermostat is a wall--mounted, low--voltage thermostat which maintains room temperature by controlling the operation of a heating and/or air conditioning
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Batteries Battery operation is available for installations where there is no common (C) wire available at the thermostat. For battery operation, install two alkaline AA batteries. The thermostat is designed to operate up to one year on a set of batteries. A battery indicator on the display warns when battery replacement is needed. If batteries are installed and the thermostat is operated from 24VAC power,battery operation willoccuronly when 24VAC powerisnotpresent.The changeover between 24VAC po
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Thermostatshould NOT bemounted S Closetoawindow,onanoutsidewall,ornexttoadoorleadingtothe outside. S Exposedtodirectlightorheatfromthesun,alamp,fireplace,orother temperature--radiating objectswhich could causeafalsereading. S Closetoorindirectairflowfromtheunit. S Inareaswithpooraircirculation,suchasbehindadoororinan alcove. Step2—InstallThermostat ! WARNING ELECTRICALOPERATIONHAZARD Failure to follow this warning could result in personal injury ordeath. Before installing thermostat, turn off al
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! CAUTION ENVIRONMENTAL HAZARD Failure to follow this caution may result in environmental damage. Mercury is a hazardous waste. Federal regulations require that Mercury bedisposed ofproperly. 3. Open thermostat (mounting base) to expose mounting holes. The base can be removed to simplify mounting. Press the thumb release at the top ofthethermostatand snap apartcarefully to separatemounting basefrom remainderofthermostat. 4. Route thermostat wires through large holein mounting base. Levelmounting
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5. Drill two 3/16--in. mounting holes in wall where marked. 6. Secure mounting base to wall with 2 anchors and screws provided (additional anchoring holes available for more secure mounting, if needed)making sureallwiresextend through holein mounting base. 7. Adjust length and routing of each wire to reach proper terminal and connector block on mounting base with 1/4 in. of extra wire. Strip only 1/4 in. of insulation from each wire to prevent adjacent wires from shorting togetherwhen connected.
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PTAC Terminal Designations C Gl OR Gh O Y W R R W Y O Gh Gl C Thermostat Terminal Designations Rc - 24 VAC, from cooling equipment OR or Rh - 24 VAC, from heating equipment W - Heating O/B C - Common 24 VAC reversing valve G - Fan Not used Y - Cooling A08092 Fig.3 -- TerminalDesignations 9
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! CAUTION ELECTRICAL OPERATIONHAZARD Failure to follow this caution may result in equipment damage orimproperoperation. Improper wiring or installation may damage the thermostat. Check to make sure wiring is correct before proceeding with installation or turning on unit. 9. Push any excess wire into wall and against mounting base. Seal hole in wall to prevent air leaks. Leaks can affect operation. 10. Snap case back together. Attach thermostat to backplate by inserting tab on bottom edgeand hing
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11. Close thermostat assembly making sure pins on back of circuit board align with sockets in connector. 12. Turn ON powerto unit. When power is applied, all display icons are lit for 2 seconds to test the display. Following this, the equipment type for which the thermostat is configured is displayed foran additional2 seconds.Itwill beone ofPH orPC (ifHP, AC,H orC is displayed, the thermostat is configured incorrectly to operate a PTAC). See explanation under Step 3, Option 01 below. A heat pump
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Option 17 -- Timebetween equipmentstages(HP only) Option 18 -- Continuousbacklighting (when 24VAC issupplied only) Option 26 -- Minimum cooling setpoint Option 27 -- Maximum heating setpoint Option 39 -- Display setpointonly (orsetpointand room air) Option 99 -- Reset to factory defaults ToEntertheAdvancedConfigurationMode: Press and hold the FAN key for about 10 seconds until the display changes so that only two pairs of digits are showing. The large upper display shows the configuration number
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Meanings: PC or PH selects PTAC units (Packaged Terminal Air Conditioners). PH controlsaPTAC with 1 speed heatpump with 1 stageofaux heat. PC controlsaPTAC with 1 speed airconditionerwith 1 stageofE1 heat. NOTE: A PH thermostatcan beconverted to controlaHeatCoolsystem. Option03 -- Fahrenheit/Centigrade Selects temperature measurement units. Selections: F = Fahrenheit C = Centigrade DefaultisFahrenheit Option04 -- NotusedonaPTACsystem Default= OF Option07 -- NotusedonaPTACsystem Default= OF Optio
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Option11 -- MinimumDeadbandBetweenHeatingAndCooling Selections: 01 through 06 — Defaultis02. Sets the minimum allowable number of degrees between heating and cooling setpoints. One setpoint will “push” the other to maintain this difference. Option13 -- RoomAirTemperatureOffset Selections: --5to5_F—Defaultis0. This option selects the number of degrees F to be added to the displayed temperature to calibrate or deliberately miscalibrate the measured room temperature. Option16 -- MaximumCyclesPerHou
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Option17 -- MinimumTimeBetweenEquipmentStages(HPonly) Selections: 10,15,20,25 minutes— Defaultis15. When there are two stages of heat available, this is the amount of time the first stagemustoperatebeforethesecond stagecan turn on. With heat pumps,longer times can reduce the amount of auxiliary heat used. Not available with AC thermostats. Option18 -- BacklightConfiguration Selections: ON,OF — DefaultisOF. When ON is selected and the thermostat is not battery operated, a low level continuous dis
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Option39 -- DisplaySetpointOnlyorSetpointandRoomTemperature This configuration option determines what the display on the thermostat will look like. Selections: SP — Willdisplay thesetpointonly. rt— Willdisplay thesetpointand room airtemperature Default= SP Option99 -- ResettoFactoryDefaults Selection: Seebelow — Thereisno default. Use this capability to reset the thermostat to “out of thebox”conditions. NOTE: Allpreviousconfiguration settingswillbelost! When this option is selected, the configur
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To enter the Installer Test mode, use the same process as is used to enter Installer Configuration, only hold the FAN key longer. More specifically, press and hold the FAN for about 15 seconds until the display reads In on the left and S in the smaller display. The MODE will be OFF. The MODE key (upper left) can now be used to select heat, cool, or emergency heat (HP only). Selecting one of the available modes will immediately command the equipment to turn on in that mode.Therequestwillstay acti
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OPERATINGTHE THERMOSTAT NOTE: Should the thermostat lose power, it will turn back on with the last settingspriorto thepoweroutage. ButtonIdentification A08088 Fig.5 -- Button Identification a -- FAN Selects whether the fan operates continuously (on) or in cycle mode (auto) b -- MODE Selects whether thermostat is set for heating, cooling, emergency heat(heatpump system only)oroff c -- UP Increases the temperature (or adjusts the screen selection up when setting advanced programming features) d --
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Displaybacklighting Thedisplayhastwo levelsoflighting,high leveland continuouslow level.High levellighting comeson for10 secondsany timea button is pressed.Continuous low level lighting is only available if the thermostat is operated from 24VAC. It is not available with batteries. Continuous low level backlighting is a configurableoption (seeconfiguration settingsabove). 6 7 5 8 4 3 9 2 10 1 11 12 A08089 Fig.6 -- On screen indicators On--ScreenIndicators 1 Fan mode -- on orauto 2 Thermostatmodei
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4 ThermostatmodeisCool 5 ThermostatmodeisHeat 6 Thermostatmodeisemergency heat 7 Fahrenheit 8Celsius 9 Battery strength indicator 10 Aux HeatisOn 11 Compressor is On (if flashing, it is waiting to come on) 12 Currentsetpoint(ifconfigured to display room temp) Settingthetemperaturesforheatingandcooling Your thermostat is installed with the heating set at 68_F and the cooling set at 72_F. You can use these or change them so your room is as warm or as cool as you would likeitto be.Thesestepswillhol
