INSTALLATION MANUAL

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167187-UIM-B-0306SUPPLY VOLTAGE CONNECTIONSIMPORTANT: The power connection leads and wiring box may be relocatedto the left side of the furnace. Remove the screws and cut wire tieholding excess wiring. Reposition on the left side of the furnace and fastenusing holes provided.1. Provide a power supply separate from all other circuits. Installovercurrent protection and disconnect switch per local/nationalelectrical codes. The switch should be close to the unit for conveniencein servicing. With the disconnect or fused switch in the OFFposition, check all wiring against the unit wiring label. Refer to thewiring diagram, Figure 30, in this instruction.2. Remove the screws retaining the junction box cover. Route thepower wiring through the opening in the unit into the junction boxwith a conduit connector or other proper connection. In the junctionbox there will be three wires, a Black Wire, a White Wire and aGreen Wire. Connect the power supply as shown on the unit wiringlabel on the inside of the blower compartment door or Figure 9.The black furnace lead must be connected to the L1 (hot) wirefrom the power supply. The white furnace lead must be connectedto neutral. Connect the green furnace lead (equipment ground) tothe power supply ground. An alternate wiring method is to use afield provided 2” (5.1 cm) x 4” (10.2 cm) box and cover on the outsideof the furnace. Route the furnace leads into the box using aprotective bushing where the wires pass through the furnacepanel. After making the wiring connections replace the wiring boxcover and screws.3. The furnace's control system requires correct polarity of the powersupply and a proper ground connection. If the power supply polarityis reversed, the control board will flash 9 times. The furnace willnot operate until the polarity is corrected. Refer to "FURNACEDIAGNOSTICS" section of the “User’s Information, Maintenance,& Service Manual” provided with this furnace for symptoms ofreversed power supply polarity.BLK/BLKWHT/WHTGRN/GRNHUMEACWIRING INSIDEJUNCTION BOXBURNERCOMPARTMENTL1(HOT)BLKNWHTGRNGNDJUNCTIONBOXHUM (HOT)EAC (HOT)LOW VOLTAGE CONTROL WIRING CONNECTIONSInstall the field-supplied thermostat by following the instructions thatcome with the thermostat. With the thermostat set in the OFF positionand the main electrical source disconnected, connect the thermostatwiring from the wiring connections on the thermostat to the terminalboard on the ignition module, as shown in Figures 10 & 11. Electronicthermostats may require the common wire to be connected as shown inFigures 10 & 11. Apply strain relief to thermostat wires passing throughcabinet. If air conditioning equipment is installed, use thermostat wiringto connect the Y and C terminals on the furnace control board to theproper wires on the condensing unit (unit outside).Set the heat anticipator in the room thermostat as shown below. Settingit lower will cause short cycles. Setting it higher will cause theroom temperature to exceed the setpoint.Two-Stage ThermostatSingle Stage ThermostatDo not exceed 1.0 amp loading.First StageSecond Stage.4 Amps.6 Amps.4 AmpsIMPORTANT: Some electronic thermostats do not have adjustableheat anticipators. They may have other type cycle rate adjustments.Follow the thermostat manufacturer's instructions.The 24-volt, 40 VA transformer is sized for the furnace componentsonly, and should not be connected to power auxiliary devices such ashumidifiers, air cleaners, etc. The transformer may provide power for anair conditioning unit contactor.For additional connection diagrams for all UPG equipment refer to “LowVoltage System Wiring” document available online at www.upgnet.comin the Product Catalog Section.DOOR SWITCHBLOWERCOMPARTMENTCLASS 2 SYSTEMCONTROL WIRINGTO THERMOSTATIGNITIONMODULEFIGURE 9: Electrical Wiring10 Unitary Products Group
167187-UIM-B-0306AC10 2 Stage Scroll A/C w/ Variable Speed Furnace - PV8/9; (F,L)*8/9V, (G,L)*8/9V, XYG80V-U, XYF80V-U / XYF80V-U*LTHERMOSTAT*DN22U00124C24-Volt CommonYFirst Stage CoolY2Second Stage CoolR24-Volt Hot (Heat XFMR)RC24-Volt Hot (Cool XFMR)E/W1First Stage HeatW2Second Stage HeatGFanTHERMOSTAT*PP32U70124C24-Volt CommonYFirst Stage CoolY2Second Stage CoolR24-Volt Hot (Heat XFMR)RC24-Volt Hot (Cool XFMR)E/W1First Stage HeatW2Second Stage HeatGFanTHERMOSTAT*DN22C00124C24-Volt CommonYFirst Stage CoolY2Second Stage CoolR24-Volt HotWFirst Stage HeatW2Second Stage HeatGFanTHERMOSTAT*DP22U70124C24-Volt CommonY1First Stage CoolY2Second Stage CoolR24-Volt HotE/W1First Stage HeatW2Second Stage HeatGFanTHERMOSTAT*PP32U71124*PP32U72124C24-Volt CommonY1First Stage CoolY2Second Stage CoolR24-Volt HotE/W1First Stage HeatW2Second Stage HeatGFanDHMDehumidistatLMalfunction LightHMHumidistatConnection of the "C"Termainal, 24-VoltCommon, is optionalwhen used with batteriesConnection of the "C"Termainal, 24-VoltCommon, is optionalwhen used with batteriesConnection of the "C"Termainal, 24-Volt Common,is optionalwhen used with batteriesConnection of the "C" Termainal,24-VoltCommon, is optionalwhen used with batteriesStep 1 of Thermostat UserConfiguration Menu must beset to MLTI STGThermostat Installer SetupNumber 1 - System Type -must be set to 6 - 2Heat/2 Cool ConventionalThermostat InstallerSetup Number 0170 -System Type - must beset to 8 - 2 Heat/2 CoolMultistage ConventionalStep 1 of Thermostat UserConfiguration Menumust be set to MS 2Step 16 of ThermostatUser Configuration Menumust be set to ON to useComfort Alert FeaturesThermostat Installer SetupNumber 15 - CompressorProtection - must be set to 5E2/P Switch must be inthe E2 position and theHumidistat Jumper onCFM Control must bein the 'YES' positionfor DehumidificationVARIABLE SPEEDFURNACE CONTROLC24-Volt CommonY1First Stage CoolY/Y2Single/Second Stage CoolR24-Volt HotW/W1Single/First Stage HeatW2Second Stage HeatGFanCFM CONTROLHUMDehumidification - Open on Humidity Rise(O)Reversing Valve– Energized in Cool(X/L)Malfunction Light( ) CONVENIENCE TERMINALNO FUNCTION IN THIS APPLICATION.TWO STAGEAIR CONDITIONINGC24-Volt CommonY1First Stage CoolY2Second Stage CoolR24-Volt HotComfort AlertInterface24V HUMIDIFIER(Optional)FIGURE 10: Thermostat Chart - ACUnitary Products Group 11
Page 1 and 2: INSTALLATION MANUALHIGH EFFICIENCYT
Page 3: 167187-UIM-B-0306INSPECTIONAs soon
Page 8 and 9: 167187-UIM-B-0306GASPIPEMANUALSHUT-
Page 12 and 13: 167187-UIM-B-0306HP24 Two Stage H/P
Page 14 and 15: 167187-UIM-B-0306CATEGORY 1 - 450 F
Page 16 and 17: 167187-UIM-B-0306This type of insta
Page 18 and 19: 167187-UIM-B-0306CARBON MONOXIDE PO
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Page 22 and 23: 167187-UIM-B-0306ADJUSTMENT OF TEMP
Page 24 and 25: 167187-UIM-B-0306FILTER PERFORMANCE
Page 26 and 27: 167187-UIM-B-0306SECTION IX: WIRING
Page 28: NOTESSubject to change without noti

INSTALLATION MANUAL

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