Page 2 - Introduction; It’s Hard To Stop A Trane
©American Standard Inc. 2001 RT-PRC007-EN Introduction Packaged RooftopAir Conditioners Through the years, Trane has designedand developed the most complete line ofPackaged Rooftop products available inthe market today. Trane was the first tointroduce the Micro —microelectronicunit controls— and aga...
Page 3 - Contents; Model Number Description
3 Contents RT-PRC007-EN Introduction Features and Benefits Application Considerations Selection Procedure Model Number Description General Data Performance Data Performance Adjustment Factors Controls Electric Power Dimension and Weights Mechanical Specifications 2 4 10 12 14 15 19 18 28 32 34 41
Page 5 - Scroll Compressor; Simple Design with 70% Fewer Parts
5 RT-PRC007-EN Trane 3-D ® Scroll Compressor Simple Design with 70% Fewer Parts Fewer parts than an equal capacityreciprocating compressor meanssignificant reliability and efficiencybenefits. The single orbiting scrolleliminates the need for pistons,connecting rods, wrist pins and valves.Fewer parts...
Page 6 - Micro Controls; • prevents the unit from short cycling,; Quality and Reliability
RT-PRC007-EN 6 Features andBenefits Micro Controls The Micro provides unit control forheating, cooling and ventilating utilizinginput from sensors that measure outdoorand indoor temperature. Quality and Reliability are enhancedthrough the use of time-tested micro-processor controls and logic. The Mi...
Page 9 - VariTrac; Downflow and Horizontal Economizers
9 RT-PRC007-EN Features andBenefits VariTrac Trane’s changeover VAV System for lightcommercial applications is alsoavailable. Coupled with VoyagerCommercial, it provides the latest intechnological advances for comfortmanagement systems and can allowthermostat control in every zone servedby VariTrac™...
Page 10 - Exhaust Air Options; Barometric relief dampers.; Application Recommendations; The fan rpm is correct as selected.
RT-PRC007-EN 10 ApplicationConsiderations Exhaust Air Options When is it necessary to provide buildingexhaust? Whenever an outdoor air economizer isused, a building generally requires anexhaust system. The purpose of theexhaust system is to exhaust the properamount of air to prevent over or under-pr...
Page 13 - Heating capacity selection:; Electric Heating System
13 RT-PRC007-EN SelectionProcedure The supply air fan motor selected in theprevious cooling capacity determinationexample was 7.27 bhp with 652 rpm.Thus, the supply fan motor selected is 7.5hp. To select the drive, enter Table PD-15 fora 30-ton unit. Select the appropriatedrive for the applicable rp...
Page 14 - YC
RT-PRC007-EN 14 ModelNumberDescription YC D 480 A 4 H A 1 A 4 F D 1 A 0 0 0 0 0 0 0 0 0 0 0 0 5 12 3 456 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 KW Tons Voltage 36 54 72 90 108 27½ to 35 240 x x 480 x x x x 600 x x x 40 and 50 240 x 480 x x x x 600 x x x x Digit 1, 2 — Unit...
Page 15 - General Data
15 RT-PRC007-EN General Data 27 1/2 Ton 30 Ton Cooling Performance 1 Nominal Gross Capacity 329,000 363,000 Natural Gas Heat 2 Low High Low High Heating Input (BTUH) 350,000 600,000 350,000 600,000 First Stage 250,000 425,000 250,000 425,000 Heating Output (BTUH) 283,500 486,000 283,500 486,000 Firs...
Page 28 - Controls; VAV Units Only
RT-PRC007-EN 28 Controls VAV Units Only Sequence of Operation 1 Supply Air Pressure Control Inlet Guide Vane Control Inlet guide vanes are driven by amodulating 2-10 vdc signal from the VAVModule. A pressure transducermeasures duct static pressure, and theinlet guide vanes are modulated tomaintain t...
Page 29 - CV Units Only
29 RT-PRC007-EN Controls reset temperature setpoint the amountof reset is equal to the reset amountsetpoint. b Reset Based On Zone Or ReturnTemperature Zone or return reset is applied to thezone(s) in a building that tend toovercool or overheat. The supply airtemperature setpoint is adjusted basedon...
Page 30 - Supply Air Tempering
RT-PRC007-EN 30 Controls the requirement, the UCP will energizethe second stage electric heatcontactor(s) if the appropriate limits areclosed. The UCP will cycle second stageon and off as required while keepingstage one energized. The supply fan is energizedapproximately 1 second before theelectric ...
Page 31 - NSB Panel
31 RT-PRC007-EN Controls Coil Freeze Protection FROSTAT™ The FROSTAT system eliminates theneed for hot gas bypass and adds asuction line surface temperature sensorto determine if the coil is in a conditionof impending frost. If impending frost isdetected primary cooling capacity isshed as necessary ...
Page 32 - Electrical Service Sizing; Set 2. Rooftop units with Electric Heat; For units using heaters less than 50 kw.
RT-PRC007-EN 32 ElectricalData Electrical Service Sizing To correctly size electrical servicewiring for your unit, find theappropriate calculations listed below.Each type of unit has its own set ofcalculations for MCA (Minimum CircuitAmpacity), MOP (MaximumOvercurrent Protection), and RDE(Recommende...
Page 37 - Field Installed Sensors
37 RT-PRC007-EN Note:1. Remote sensors are available for use with all zone sensors to provide remote sensing capabilities. SINGLE SETPOINT SENSOR WITH SYSTEM FUNCTION LIGHTS (BAYSENS021*) PROGRAMMABLE NIGHT-SETBACK SENSOR (BAYSENS020*) DimensionalData Field Installed Sensors (Variable AirVolume VAV)
Page 39 - Integrated ComfortTM System Sensors
39 RT-PRC007-EN Dimensional (CV and VAV) Data Note:1. Remote sensors are available for use with all zone sensors to provide remote sensing capabilities. REMOTE MINIMUM POSITION POTENTIOMETER CONTROL (BAYSTAT023*) TEMPERATURE SENSOR (BAYSENS016*) ZONE TEMPERATURE SENSOR W/TIMED OVERRIDE BUTTONAND LOC...
Page 40 - Weights; TOP VIEW
RT-PRC007-EN 40 Weights Table W-1 — Approximate Operating Weights — Lbs. 2 Notes:1. Basic unit weight includes minimum HP Supply Fan motor.2. Optional high static and high efficiency motor weights are in addition to the standard motor weight included in the basic unit weight. D E F TOP VIEW OF UNIT ...
Page 42 - Unit Options
RT-PRC007-EN 42 MechanicalSpecifications make all heating, cooling and/orventilating decisions in response toelectronic signals from sensorsmeasuring indoor and outdoortemperatures. The control algorithmmaintains accurate temperature control,minimizes drift from set point andprovides better building...
Page 43 - Accessories; • Unit Configuration data
43 RT-PRC007-EN MechanicalSpecifications Accessories Roof Curb The roof curb shall be designed to matewith the unit and provide support and awater tight installation when installedproperly. The roof curb design shall allowfield-fabricated rectangular supply/returnductwork to be connected directly to...
Page 44 - LP Conversion Kit
RT-PRC007-EN 44 MechanicalSpecifications LP Conversion Kit Field installed conversion kit shallprovide orifice(s) for simplifiedconversion to liquefied propane gas. Nochange of gas valve shall be required. BAYSENS006* — Zone Sensor has one temperature setpoint lever, heat, off orcool system switch, ...