Trane DFOA - Manuals - manualsarea.com

Page 2 - Introduction

©American Standard Inc. 2000 MUA-PRC001-EN Introduction To help relieve negative pressure insidecommercial and industrial facilities, suchas factories, garages, packing plants,kitchens, bowling alleys, and weldingand foundry areas. Trane’s make-up airunits offer a wide range of cfm, from1,600 to 64,...

Page 3 - Contents; Unit Configurations

3 Contents MUA-PRC001-EN Introduction Features and Benefits Unit Configurations Application Considerations Model Number Description Performance Data Gas Piping Controls Electric Power Dimension and Weights Mechanical Specifications OptionsAccessories 2 4 6 7 8 9 11 16 18 19 36 3743

Page 5 - Basic Unit; Contact

5 MUA-PRC001-EN Features andBenefits Basic Unit Feature: Casing with galvanized finish Benefit: Rust problem is greatly reduced Feature: Watertight construction Benefit: Designed for indoor or outdoormounting Feature: Access doors are hinge mounted withindustrial type hardware Benefit: Provides simp...

Page 7 - The Need for Make-Up Air Units

7 MUA-PRC001-EN ApplicationConsiderations Outdoor UnitsOutdoor make-up air units are the mostcommon approach to relieving negativepressure inside commercial andindustrial facilities. All units offer theadvantage of a full support system thatis watertight, provides a plenum forreturn air, and has eas...

Page 8 - D F O A 1 0 9 A N C A 1 A A B 1 2 0 0 0 A

MUA-PRC001-EN 8 ModelNumberDescription D F O A 1 0 9 A N C A 1 A A B 1 2 0 0 0 A 1,2,3 4 5,6,7 8 9 10 11 12 13,14 15 16 17 18 19 20 21 Digits 1,2,3 — Unit Description DFO = Direct Fired Outdoor Unit Digit 4 — Development Sequence A = First Generation Digits 5,6,7 — Unit Size 109 = Unit Size 109112 =...

Page 11 - Component Identification

11 MUA-PRC001-EN GasPiping Component Identification GP-09 Pilot Gas Pressure Regulator GP-11 Main Gas Shutoff Valve GP-13 Pilot Gas Shutoff Valve GP-17 Auxiliary Gas Shutoff Valve GP-18 Auxiliary Gas Shutoff Valve GP-27 Orificed Needle Valve VG-01 Pilot Gas Valve VG-02 Main Gas Valve VG-03 Auxiliary...

Page 16 - Controls; Component Description

MUA-PRC001-EN 16 Controls Component Description 1Remote Temperature Selector Not temperature sensitive. Mounted onremote control station. 2Air Sensor Installed in blower discharge. 3Amplifier Installed in electrical control panel.Contains wiring terminals, sensitivityadjustments and one calibratingp...

Page 36 - BASIC

MUA-PRC001-EN 36 MechanicalSpecifications General The BASIC unit is factory-assembled, wired and test-fired. DEPENDING ON THE OPTIONS, UNIT MAY SHIP INSECTIONS DUE TO PHYSICAL SIZEOF EQUIPMENT. Although designed primarily for outdoor mounting, it can bemounted indoors. Units are mounted onsteel rail...

Page 37 - Options; Motorized Return Air Damper

37 MUA-PRC001-EN Options Motorized Return Air Damper PurposeTo provide a way for recirculating returnair. OperationA two position switch controls the returnair damper. When the two position switch is in the“RA” position, the RA damper opens.Fifty percent of supply air is RA,50 percent of supply air ...

Page 39 - Motorized Inlet Damper

39 MUA-PRC001-EN Options Mixing Box —Building Pressure Control PurposeTo provide a way for recirculating returnair and letting building pressure controlthe amount of air which is recirculated. OperationIf building pressure is less than desired,the RA damper modulates to a moreclosed position and the...

Page 40 - ETL Labeling Requirements

MUA-PRC001-EN 40 Options ETL Labeling Requirements A DFOA unit with no mixing box, motorized RA damper, or motorized75/25 damper can bear the ETL label if: 1 The unit SCFM is less than theMaximum SCFM given below. 2 The unit input is less than the MaximumBTUH rating given below. 3 The unit temperatu...

Page 41 - Optional Gas Controls; Series 44 — Space Temperature Control

41 MUA-PRC001-EN Options Exhaust InterlockThe exhaust interlock is a pair of contactson the unit that will close when the unitis “on.” The customer can wire theexhaust fan to the contacts so that whenthe heating unit is “on,” the exhaust fanwill also be “on.” Note the heating unitturns on the exhaus...

Page 42 - Factory Installed Options; Dampers and Mixing Box

MUA-PRC001-EN 42 Options Factory Installed Options Motors — GeneralAll motors are provided as standard,with a starter for external overloadprotection, a control transformer, and afusible disconnect switch. Open Drip-Proof Motor60 Hz/1800 Rpm Single PhaseOptional 115V motors are available in ¾to 3 hp...

Page 43 - Field Installed Accessories

43 MUA-PRC001-EN Accessories Additional Factory InstalledOptions High Gas Pressure Regulator1-5 PsigUnits 825 MBh and less require anadditional gas pressure regulator if inletpressure exceeds 1 psig. Inlet pressure atthe job must be specified. 5-10 PsigAn additional regulator is furnished. Inletpres...