Trane Gas Unit Heaters Detailliste

September 2009UH-PRC002-ENIndoor Gas Heating ProductsUnit HeatersDuct Furnaces Product Catalog

10 UH-PRC002-ENApplication Considerationsdistribution over a large floor area. (Five-way nozzles are not available on propeller fan unit heaters.)In

UH-PRC002-EN 11Application Considerations as standard equipment. However, for natural gas units, you need to specify on the order “Natural Gas, 100 pe

12 UH-PRC002-ENApplication ConsiderationsVenting Unit HeatersVenting unit heaters and duct furnaces used to be as simple as remembering that warm ai

UH-PRC002-EN 13Application Considerations Mechanical venting occurs when a power blower provides a positive air flow to exhaust vent gas. The blower m

14 UH-PRC002-ENApplication ConsiderationsBeyond satisfying the codes, vents should be positioned away from shrubs and plants that might be affected

UH-PRC002-EN 15Application Considerations temperatures. Use of PVC, CPVC and other plastic vent materials are inappropriate and hazardous. Check the m

16 UH-PRC002-EN Selection ProcedureDetermine the total heating load requirements in accordance with methods recommended by the ASHRAE Handbook of Fun

UH-PRC002-EN 17Selection Procedure High Efficiency Duct Furnace1. From the performance data tables, select the unit whose heating output meets or exce

18 UH-PRC002-EN Indoor Gas Heating UnitsNote: All units are AGA approved. For CGA approved units, contact Air Handling Product Support.Digit 1 — Gas

UH-PRC002-EN 19Model Number Descriptions Horizontal Blower AssemblyDigit 1, 2, 3 — Horizontal Blower AssemblyDigit 4 — Development SequenceC = Third G

© 2009 Trane All rights reserved UH-PRC002-EN IntroductionTrane unit heaters, offered in both propeller and centrifugal models, are a complete heat g

20 UH-PRC002-EN General DataService ClearancesHeat Throw DataTable 2. Minimum clearancesDuct Furnace Propeller & Centrifugal Fan U.H.Sides 18” 18

UH-PRC002-EN 21General Data Figure 6. 30° nozzleTable 4. 30-degree nozzle—approximate distance of throw at nominal airflowDistance From Floor to Botto

22 UH-PRC002-ENGeneral DataFigure 8. 90° nozzleTable 6. 90-degree nozzle—approximate floor coverage at nominal airflowUnit SizeDistance From Floor t

UH-PRC002-EN 23General Data Figure 9. “Y” splitterTable 7. “Y” splitters—approximate distance of throw at nominal airflowDistance From Floor to Bottom

24 UH-PRC002-EN Performance DataTable 8. Correction factors for high altitude installationsAltitude Above Sea Level (ft) 0 2,000 3,000 4,000 5,000 6

UH-PRC002-EN 25Performance Data Table 10. High Efficiency Propeller Fan Gas Unit Heater performance data—model GHND/GHPDUnit Size 010 012 015 017 020

26 UH-PRC002-ENPerformance DataTable 12. Separated Combustion Propeller Fan Gas Unit Heater performance data—model GAND/GAPDUnit Size 010 012 015 01

UH-PRC002-EN 27Performance Data Table 14. High Efficiency Indoor Gas Duct Furnace performance data—model GLND/GLPDUnit SizeInputMAX MIN Output MIN Tem

28 UH-PRC002-ENPerformance DataTable 16. Horizontal Blower Assembly performance dataModelsNominal cfmBlower SizeExternal Static Pressurein. of H2O 0

UH-PRC002-EN 29Performance Data Figure 10. Performance data curves for all duct furnaces

Table of ContentsUH-PRC002-EN 3 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

30 UH-PRC002-EN ControlsPilot ControlHigh efficiency units (centrifugal, propeller and duct furnaces) ship as standard with intermittent pilot igniti

UH-PRC002-EN 31Controls Electronic Modulating, 4–20 mA/0–10 Vdc InputProvides modulated heat output. Ignition is at full fire (100 percent input), and

32 UH-PRC002-ENControlsThermostatsElectronic Modulating Room Thermostat(Included with Gas Control)• Low Voltage (24 V)• 60 to 85°F Range• 5-13/16” W

UH-PRC002-EN 33 Sequence of OperationsTypical wiring diagrams and sequence of operations for indoor units with intermittent pilot ignition or direct s

34 UH-PRC002-ENSequence of OperationsTwo-Stage ControlWith power applied to the unit:1. The first stage of the thermostat calls for heat.2. The pilo

UH-PRC002-EN 35Sequence of Operations Electronic Modulating Control (with duct thermostat)With power applied to the unit:1. The thermostat calls for h

36 UH-PRC002-ENSequence of OperationsElectronic Modulating Control (with Duct Thermostat)t˚L2L1DISCONNECTLINE IN 115V/1/60L1FAN TIME DELAYSUMMER/WIN

UH-PRC002-EN 37Sequence of Operations Electronic Modulating Control (with room thermostat)With power applied to the unit:1. The thermostat calls for h

38 UH-PRC002-ENSequence of OperationsElectronic Modulating Control (with room thermostat)L2L1DISCONNECTLINE IN 115V/1/60L1FAN TIME DELAYSUMMER/WINTE

UH-PRC002-EN 39Sequence of Operations High-Efficiency UnitsNote: On duct furnaces, the fan motor and associated controls shown in the wiring diagrams

4 UH-PRC002-EN Features HighlightsTen-Year WarrantyThe complete heat exchanger, draft hood assembly of the unit heater and burners are warranted by T

40 UH-PRC002-ENSequence of OperationsTwo-Stage Control, Intermittent PilotWith power applied to the unit:1. The first stage of the thermostat calls

UH-PRC002-EN 41Sequence of Operations Single-Stage Control, Direct SparkWith power applied to the unit:1. The thermostat calls for heat.2. The power v

42 UH-PRC002-ENSequence of OperationsTwo-Stage Control, Direct SparkWith power applied to the unit:1. The thermostat calls for heat.2. The power ven

UH-PRC002-EN 43Sequence of Operations Separated Combustion UnitsSingle-Stage ControlWith power applied to the unit:1. The thermostat calls for heat.2.

44 UH-PRC002-ENSequence of OperationsSeparated Combustion Units—Single-Stage Control—Electronic Modulating 4–20 mA/0–10 Vdc Input

UH-PRC002-EN 45 Electrical DataTable 18. Motor electrical data—centrifugal fanCurrent CharacteristicsFull Load Amps(a)(a) FLA based on NEC ratings. Al

46 UH-PRC002-EN Dimensions and WeightsTable 20. Tubular Heat Exchanger dimensional data—model GTND/GTPDUnit Sizes 30 45 60 75 90 105 120“A” Jacket He

UH-PRC002-EN 47Dimensions and Weights Table 21. Tubular Heat Exchanger unit heater dimensional data—model GTND/GTPDInput Diameter Gas Inlet WeightMode

48 UH-PRC002-ENDimensions and WeightsTable 22. Tubular Heat Exchanger unit heater dimensional data—model GTND/GTPDInput Diameter Gas Inlet WeightMod

UH-PRC002-EN 49Dimensions and Weights Table 23. High-efficiency propeller fan gas unit heater dimensional data—model GHND/GHPDUnit Sizes 100 125 150 1

UH-PRC002-EN 5 Features and Benefits Propeller Fan / Tubular Heat Exchanger Unit HeatersTrane has added a new unit heater to enhance its broad line of

50 UH-PRC002-ENDimensions and WeightsTable 24. High-efficiency centrifugal fan unit heater dimensional data—model GBND/GBPDUnit Sizes 100 125 150 17

UH-PRC002-EN 51Dimensions and Weights Table 25. Separated combustion propeller fan gas unit heater dimensional data—model GAND/GAPDUnit Sizes 100 125

52 UH-PRC002-ENDimensions and WeightsTable 26. Separated combustion centrifugal fan unit heater dimensional data—model GKND/GKPDUnit Sizes 100 125 1

UH-PRC002-EN 53Dimensions and Weights Table 27. High-efficiency duct furnaces—model GLND/GLPDInputD (Dia.)Gas InletModel MBh A B C F Nat. LP Weight010

54 UH-PRC002-ENDimensions and WeightsTable 28. Separated combustion indoor gas duct furnaces—model GMND/GMPDInputD (Dia.)(a)Gas InletModel MBh A B C

UH-PRC002-EN 55Dimensions and Weights Table 29. Horizontal blower assembly dimension dataNominal Input Filter ShipModel cfm MBh(a)A B C D E F G Size**

56 UH-PRC002-ENDimensions and WeightsTable 30. Factory-installed flue vent data (standard on high-efficiency units)Unit SizeInput MBh 30 45 60 75 10

UH-PRC002-EN 57Dimensions and Weights 1. 30° nozzle2. 60° nozzle3. 90° nozzleNote: 30°, 60°, and 90° nozzles are shipped unassembled with bagged hardw

58 UH-PRC002-EN Mechanical SpecificationsTubular Heat Exchanger Indoor Gas Unit (model GT)Unit is completely factory assembled, piped, wired and test

UH-PRC002-EN 59Mechanical Specifications High Efficiency Propeller (model GH) and Centrifugal Fan Gas Unit Heaters (model GB)GeneralUnits are complete

6 UH-PRC002-ENFeatures and Benefits Separated Combustion Propeller Fan Unit HeatersThe Trane separated combustion propeller type unit heater keeps e

60 UH-PRC002-ENMechanical SpecificationsTwo-Stage Gas ValveProvides two stages of heat. Ignition is at low fire (50 percent of the furnace’s rated i

UH-PRC002-EN 61Mechanical Specifications ThermostatsLow voltage room thermostat, single-stage.Low voltage room thermostat, single-stage with summer/wi

62 UH-PRC002-ENMechanical SpecificationsCentrifugal Unit MotorsStandard motors are 115V, 60 Hz, single phase, open drip-proof with built-in thermal

UH-PRC002-EN 63Mechanical Specifications Summer/Winter SwitchVertical LouversDuct Discharge Flange(Centrifugal fan units only) Provided in lieu of lou

64 UH-PRC002-ENMechanical Specificationsthrough a side panel access plate. The high limit switch is accessible through a side panel access. Duct dis

UH-PRC002-EN 65Mechanical Specifications Additional OptionsType 409 Stainless Steel BurnersOrifices for Elevations over 2000 feetType 409 Stainless St

66 UH-PRC002-ENMechanical SpecificationsUnits are provided with two-point suspension hangers on propeller fan unit heaters and with four-point suspe

UH-PRC002-EN 67Mechanical Specifications Type 321 Stainless SteelHeat exchanger tubes and headers are seam welded 20-gauge Type 321 stainless steel.Ad

68 UH-PRC002-ENMechanical SpecificationsCasingCasings are 18-gauge galvanized steel with baked enamel finish. Side panels are removable for easy ser

www.trane.comFor more information, contact your local Trane office or e-mail us at [email protected] Order Number UH-PRC002-ENDate Septembe

UH-PRC002-EN 7 Application ConsiderationsGeneralPropeller fan unit heaters and centrifugal fan unit heaters are designed for use in space heating appl

8 UH-PRC002-ENApplication Considerationsspecial orifice selections are required. Ta b l e 8, p. 2 4 contains correction factors that can be applied

UH-PRC002-EN 9Application Considerations heated air being discharged toward the outside walls. Throw data for standard unit heaters and unit heaters u