Page 2 - Introduction
©American Standard Inc. 2001 UH-PRC002-EN Introduction Trane unit heaters represent atechnological breakthrough in quality.Trane offers customers the mostcomplete line of unit heaters anywhere.And every unit in the line has been ratedfor 80 percent thermal efficiency orbetter. But higher thermal eff...
Page 3 - Contents; Adjustment Factor
3 Contents UH-PRC002-EN Introduction Feature Highlights Features and Benefits Application Considerations Selection Procedure Manual Selection ProcedureModel Number Description General Data Performance Data Adjustment Factor Controls Electric Power Dimension and Weights Mechanical Specifications 2 4 ...
Page 7 - Non-chlorine process areas
7 UH-PRC002-EN Features andBenefits Tubular Heat ExchangerPropeller Fan Unit Heaters The Trane Company has added a newunit heater to enhance its broad line ofheating products. The Trane tubular heatexchanger is a very durable unit heaterthat provides an alternative to thetraditional clam shell style...
Page 8 - Adjusted load = Calculated load x; Low Temperature Rise
UH-PRC002-EN 8 ApplicationConsiderations natural gas is not available, Trane unitsmay be ordered directly from the factoryfor use on LP (propane) gas. Gas heat content varies by fuel type andlocation. The standard gross heatingvalue for natural gas is 1,000 Btu percubic foot, and for propane, 2,500 ...
Page 9 - Provide a vertical flue of at least four feet.
9 UH-PRC002-EN ApplicationConsiderations Indoor Units Indoor gas unit heaters and ductfurnaces are used primarily incommercial and industrial structuressuch as manufacturing areas,warehouses, garages, stores,showrooms, lobbies and corridors. Separated combustion units are usedprimarily in industrial...
Page 10 - Power Vented Units; Vent pipe equivalent length; FM and IRI Requirements
UH-PRC002-EN 10 ApplicationConsiderations Power Vented Units Units with a factory installed flue ventfan. 1 All units must be vented. Power ventedunits are designed to use single wallventpipe. A Breidert Type L, Field Starkap, orequivalent unit vent cap must befurnished by the customer. 2 The ventin...
Page 11 - These devices are; not available; from
11 UH-PRC002-EN ApplicationConsiderations High Pressure Regulators — Natural Gas Only The Trane indoor gas heating productscontained in this catalog, are designedto operate at a pressure of 3.5-inch W.C.(Water Column) when firing on naturalgas. This is the “manifold” pressure orthat which is present...
Page 12 - Mounting Detail; Steel Construction
UH-PRC002-EN 12 ApplicationConsiderations Mounting Detail (Hanging Hardware Supplied by Others) Steel Construction Wood Construction
Page 13 - Venting Categories; Sharing Flues with Other Appliances
13 UH-PRC002-EN ApplicationConsiderations (VentingUnit Heaters) Venting unit heaters and duct furnacesused to be as simple as rememberingthat warm air rises. With the introductionof new venting equipment and safetycontrols, things have become a littlemore technical. Today’s contractor has toknow a l...
Page 14 - Power Vented Unit Heaters; Power Vented Unit Heater
UH-PRC002-EN 14 ApplicationConsiderations (VentingUnit Heaters) Power Vented Unit Heaters Mechanically vented appliances haveenjoyed increasing acceptance inAmerican facilities. Power vented unitheaters allow installation without theneed to penetrate expensive roofingmaterials. They also offer more ...
Page 15 - Separated Combustion Venting
15 UH-PRC002-EN ApplicationConsiderations Heat Fumes Humidity Contractors must also be aware of theconditions at the point of termination.The National Fuel Gas Code NFPA 54/ANSI Z223.1-1992 mandates that ventsystem should terminate at least 4 feetbelow, 4 feet horizontally or 1 foot aboveany window,...
Page 16 - Propeller Fan Unit Heater; Centrifugal Fan Unit Heater; Select the unit as follows:; Duct Furnace; Select the unit as follows:; Horizontal Blower Assembly; Select the unit as follows:
UH-PRC002-EN 16 SelectionProcedure Determine the total heating loadrequirements in accordance withmethods recommended by the ASHRAEHandbook of Fundamentals or otheracceptable means. Propeller Fan Unit Heater 1 From the performance data tables, selectthe unit whose heating output meets orexceeds the ...
Page 17 - Indoor Gas Heating Units
17 UH-PRC002-EN Digit 14 — Rooftop Fan Section 0 = None (Indoor Unit and Rooftop Duct Furnace) S = Special Digit 15 — Miscellaneous Options —All Units 0 = NoneA = #409 Stainless Steel Burners 3 B = Orifices For Elevation Above 2000 Feet (Specify Elevation) S = Special Propeller Fan Unit Heater(Std.,...
Page 18 - C = Third Generation; HBA C; hp
UH-PRC002-EN 18 ModelNumberDescription (Horizontal BlowerAssembly) Digit 1-3 — Horizontal Blower Assembly Digit 4 — Development Sequence C = Third Generation Digit 5-6 — Blower Size 15 = Nominal 1500 cfm20= Nominal 2000 cfm30= Nominal 3000 cfm45= Nominal 4500 cfm Digit 7 — Transition Size (Specifies...
Page 20 - “Y” Splitter
UH-PRC002-EN 20 60° Nozzle 90° Nozzle “Y” Splitter Table GD-4 – 60 Degree Nozzle – Approximate Distance of Throw at Nominal Airflow Distance FromFloor to Bottom Unit Size – Input MBh – (kW) of Unit “H” 100 125 150 175 200 225 250 300 350 400 ft./(m) (29.3) (36.6) (43.9) (51.2) (58.6) (65.9) (73.2) (...
Page 21 - Table PAF-1 — Altitude Correction Factors
21 UH-PRC002-EN Table PD-1 – High Efficiency Propeller Fan Gas Unit Heater Performance Data Model GHND/ GHND/ GHND/ GHND/ GHND/ GHND/ GHND/ GHND/ GHND/ GHND/ GHND/ GHND/ GHND/ GHND/ GHPD GHPD GHPD GHPD GHPD GHPD GHPD GHPD GHPD GHPD GHPD GHPD GHPD GHPD Unit Size 003 004 006 007 010 012 015 017 020 02...
Page 25 - Table PD-9 – Horizontal Blower Assembly Performance Data
25 UH-PRC002-EN PerformanceData Table PD-9 – Horizontal Blower Assembly Performance Data External Static Pressure WaterIn. 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Kpa 0.05 0.07 0.10 0.12 0.15 0.17 0.20 0.22 Nominal Blower cfm rpm hp rpm hp rpm hp rpm hp rpm hp rpm hp rpm hP rpm hp Models cfm Size cu.m/s kW ...
Page 27 - Controls; Pilot Control; Gas Controls; Hydraulic Modulating Control; Electronic Modulating Control
27 UH-PRC002-EN Controls Pilot Control Standing pilot is standard on indoor ductfurnaces, propeller fan unit heaters andcentrifugal fan unit heaters. Highefficiency units (centrifugal, propeller andduct furnaces) ship as standard withintermittent pilot ignition. The separatedcombustion propeller and...
Page 29 - Sequence of Operation
29 UH-PRC002-EN ElectricPower Sequence of Operation Typical wiring diagrams and sequence ofoperations for indoor units withintermittent pilot ignition are shownbelow. On duct furnaces, the fan motorand associated controls shown in thewiring diagrams are not integral to theunit. It is essential, howe...
Page 31 - With power applied to the unit:
31 UH-PRC002-EN ElectricPower Hydraulic Modulating Control With power applied to the unit: 1 The thermostat calls for heat. NOTE: If athermostat is not supplied, steps 2through 5 will be constant as long aspower is applied to the unit. 2 The pilot valve opens. 3 The ignitor sparks continuously to ig...
Page 33 - Hydraulic Modulating Control With Bypass
33 UH-PRC002-EN ElectricPower Sequence of Operation L2 L1 DISCONNECT LINE IN 115V/1/60 L1 L2 B B FAN TIME DELAY SUMMER/WINTER SWITCH S W BLACK BLACK K5 BLOWER MOTOR DRAFTOR HTR DRAFTOR WIRING FOR POWER VENTED UNITS L1 L2 LINE TO24V XFORMER50 VA 1 2 2 24 VOLTS FAN TIME DELAY DL DL R1 W1 FURNACE ONE H...
Page 38 - High-Efficiency Units; MUST NOT
UH-PRC002-EN 38 ElectricPower High-Efficiency Units NOTE: On duct furnaces, the fan motorand associated controls shown in thewiring diagrams are not integral to theunit. It is essential, however, that the airhandling system be interlocked with theduct furnace to prevent duct furnaceoperation without...
Page 39 - Separated Combustion Units
39 UH-PRC002-EN ElectricPower Separated Combustion Units Single-Stage Control With power applied to the unit: 1 The thermostat calls for heat. 2 The pressure switch measures thepressure differential between the air inletand exhaust vent systems. If thedifferential is correct, the intermittentpilot i...
Page 50 - 00 Vent Horizontal Alternate 400 Vent Special
UH-PRC002-EN 50 Side View - 100 through125 Side View - 150 through 400 Front View - 100 through 400 Side View - 100 through125 Side View - 150 through 400 Front View - 100 through 400 Dimension andWeights Table DW-10 – Dimensional Data — Standard Duct Furnaces (in.) (mm) Models GDND/ Input Gas Inlet...
Page 54 - Transition
UH-PRC002-EN 54 Dimension andWeights Table DW-14 – Flue Vent Dimensional Data (Field Installed) Unit Size Input MBh 30 45 60 75 100 125 150 175 200 225 250 300 350 400 (kW) (8.8) (13.2) (17.6) (22.0) (29.3) (36.6) (43.9) (51.2) (58.6) (65.9) (73.2) (87.8) (102.5) (117.1) Heater To Ventor Draftor 1-¼...
Page 58 - Field Installed Accessories; Thermostats; Factory Installed Options; Heat Exchanger Options; Orifices for elevations over 2,000 feet
UH-PRC002-EN 58 MechanicalSpecifications Field Installed Accessories High Gas Line Pressure Regulator(Natural gas units only)Reduces main gas line pressure to aminimum of seven inches W.C.. Pressureat the jobsite must be specified. Theregulator is selected to accommodatethat specific pressure. Therm...
Page 60 - Type 409 Stainless Steel Burners
UH-PRC002-EN 60 MechanicalSpecifications Factory Installed Options Two-Stage Gas ValveProvides two stages of heat. Ignition is atlow fire (50 percent of the furnaces ratedinput). Requires the use of a two-stagethermostat. Heat Exchanger Options Type 409 Stainless SteelHeat exchanger tubes and header...
Page 63 - Vertical Louvers
63 UH-PRC002-EN MechanicalSpecifications Factory Installed Options Control OptionsHydraulic Modulating Gas ValveProvides modulated heat output. Ignitionis at low fire (50 percent input) anddischarge temperature sensing bulblocated in the air stream modulates thegas input from 50 percent to 100 perce...
Page 64 - Y Splitter
UH-PRC002-EN 64 MechanicalSpecifications Separated Combustion DuctFurnaces General Units are completely factory assembled,piped, wired, and test fired. All units areAGA Certified, 80 percent efficient andconform with the latest ANSI Standardsfor safe and efficient performance. Unitsare provided with...
Page 66 - General; Insulation
UH-PRC002-EN 66 MechanicalSpecifications Horizontal Blower Assembly General Units are completely factory assembled,and have four-point suspension hangersand filter racks as standard. Casing Casings are 18-gauge galvanized steelwith baked enamel finish. Side panelsare removable for easy servicing and...