Trane RT-PRC031-EN manual

Rooftop Air Handlers

November 2007 RT-PRC031-EN

IntelliPak™ II Air Handlers

Casing A-C, 16000-45000 CFM—60 Hz

Contents

Main Introduction IntelliPak II Rooftop Air Handlers Designed For Today, Tomorrow and Beyond Table of Contents Features and Benefits Standard Features Controls Figure 3. Spring Isolation Figure 2. Latching Access Door Optional Features Controls Figure 5. Traq Damper Chilled Water Cooling Figure 4. Variable Frequency Drive Field Installed Accessories Features Summary Figure 7. Lifting Lugs Installation and Service Reliability Application Flexibility Figure 8. Trane Complete Comfort System Integrated Comfort with Trane Tracer LCI Simplifying the Comfort System IntelliPak II Air Handler monitoring points available through Tracer Interoperability Optimum Building Comfort Control Figure 10. Statitrac Statitrac Direct Space Building Pressurization Control Statitrac Control with Plenum Return Fan is State of the Art! Supply Fans with Inlet Guide Vane s Variable Frequency Drives (VFD) VAV Units Only Supply Air Pressure Control Inlet Guide Vanes Control Controls Variable Air Volume (VAV) Only Controls Variable Air Volume (VAV) Only Figure 12. Supply Air Temperature Reset Heating Modulating Gas Electric Heating Controls Variable Air Volume (VAV) Only Supply Air Tempering Zone Temperature Control Unoccupied Zone Heating and Cooling Daytime warm-up Controls Constant Volume (CV) Only CV Units Only Occupied Zone Temperature Control Cooling/Economizer Heating Controls Constant Volume (CV) Only Electric Heating Hot Water or Steam Heating Supply Air Tempering Auto Changeover Controls VAV and CV Common to VAV and CV Units Space Pre ssure Control - Statitrac Morning Warm-up Options Full Capacity Morning Warm-up (MWU) Ventilation Override Module (VOM) Human Interface Panel (HI) Human Interface Panel Main Menu Figure 13. Human Interface Panel (HI ) Generic Building Automation System Module (GBAS 0-5 vdc) Generic Building Automation System Module (GBAS 0-10 vdc) Chilled Water Coil - Freeze Stat Steam and Hot Water Coil - Freeze Avoidance Applications with Chilled Water Coil Occupied/Unoccupied Switching Night Setback Sensors Occupied/Unoccupied input on the RTM Trane Tracer or BAS System Timed Override Activation - ICS Timed Override Activation - Non-ICS Comparative Enthalpy Control of Economizer Humidification Control Figure 14. CO2 Control p Return Fan Control OA Dam Applications Considerations Exhaust/Return Fan Options IntelliPak II Rooftop Air Handler Unit Offers Four Types of Exhaust/Return Fan Systems: 4 Application Recommendations 100 Percent Modulating Return Fan Systems with Statitrac Control, Constant Volume and VAV units Supply and Return Airflow Configurations Table 1 Supply Airflow Configuration Table 2 Return Airflow Configuration Corrosive Atmospheres Ventilation Override Sequences CAUTION! Natural Gas Heating Considerations Acoustical Considerations Clearance Requirements Figure 15. Unit Placement Duct Design PROPER Figure 16. Duct Design IMPROPER Protecting Hydronic Coils From Freezing Selection Procedure Cooling Capacity Selection: Step 1 - Coil and Fan Selection Step 2 - Cooling Coil Entering Conditions Step 3 - Determine Supply Fan Motor Heat Gain Supply Air Fan Selection Procedure Step 6 - Determine Leaving Air Temperature Heating Capacity Selection Step 1 - Determine Air Temperature Entering Heating Module Step 2 - Determine Total Winter Heating Load Electric Heating System Selection Procedure Exhaust Fan Motor Sizing Figure 17. Fan Motor Heat Return Fan Motor Sizing Unit Electrical Requirements Model Number Description Page Model Number Description General Data Table 3 General Data (All dimensions in inches) General Data Table 3 General Data (All dimensions in inches) 36 RT-PRC031-EN General Data Table 4 Gas Heat Inputs/Input Ranges Table 5 Economizer Outdoor Air Damper Leakage (at rated airflow) Table 6 Enthalpy of Saturated Air Table 7 Cooling Capacity Altitude Correction Factors Performance Adjustment Factors rees F) Altitude/TemperatureCorrection AirDensity Ratio (Density at New Air Density) Condition/Std. Air Handler Leavin Performance DataChilled Water Coil Capacities Table 10 Chilled Water Coil Capacities4 Row W Table 11 Chilled Water Coil Capacities6 Row WD Table 12 Chilled Water Coil Capacities8 Row WD Table 13 Supply Fan Performance STANDARD CFM Casing A (25") Table 13 Supply Fan Performance STANDARD CFM Casing A (25") Table 14 Supply Fan Performance STANDARD CFM Casing A (25") 25" Supply Fan w/o IGV Page Table 15 Supply Fan Performance STANDARD CFM Casing B (32") Table 16 Supply Fan Performance STANDARD CFMCasing B (32") 32" Supply Fan w/o IGV Page Page Figure 19. Supply Fan Performance STANDARD CFM Casing C (36") 36" Supply Fan w/o IGV Table 18 Supply Fan Performance STANDARD CFM Casing A (25") Performance Data Supply Fan with Inlet Guide Vanes Table 18 Supply Fan Performance STANDARD CFM Casing A (25") Figure 20. Supply Fan Performance STANDARD CFMCasing A (25") 25" Supply Fan Performance with IGV Page Table 19 Supply Fan Performance STANDARD CFM Casing B (32") Figure 21. Supply Fan Performance STANDARD CFMCasing B (32") 32" Supply Fan Performance with IGV Page Page Figure 22. Supply Fan Performance STANDARD CFM Casing C (36") 36" Supply Fan Performance with IGV Performance DataExhaust Fan Table 21 Exhaust Fan Performance LOW CFMCase B, STANDARD CFMCase A (25" Fan) Figure 23. Exhaust Fan Performance LOW CFMCase B, STANDARD CFMCase A (25" Fan) 25" FC Exhaust Fan Performance w/Damper Static Presure(InWC) Table 22 Exhaust Fan Performance LOW CFMCase C; STANDARD CFM Case B (28" Fan) Figure 24. Exhaust Fan Performance LOW CFMCase C; STANDARD CFMCase B (28" Fan) 28" FC Exhaust Fan Performance w/Damper Table 23 Exhaust Fan Performance STANDARD CFMCase C (32" Fan) Table 24 Exhaust Fan Performance STANDARD CFMCase C (32" Fan) 32" FC Exhaust Fan Performance w/Damper Performance DataReturn Fan Table 25 Return Fan Performance STANDARD CFMCase A (36.5" Fan) Figure 25. Return Fan Performance STANDARD CFMCase A (36.5" Fan) 36.5" Return Fan Performance Table 26 Return Fan Performance STANDARD CFMCase B and Case C (40" Fan) Figure 26. Return Fan Performance STANDARD CFMCase B and Case C (40" Fan) 40" Return Fan Performance Performance DataHeat Table 27 Natural Gas Heating Capacities Table 28 Electric Heat Air Temperature Rise Table 29 Electric Heat kw Ranges Performance DataHeat Table 30 Hot Water Coil Heating Capacities (Q/ITD) Table 31 Steam Coil Heating Capacities (Q/ITD) Table 32 Properties of Steam Table 33 Chilled Water Coil Airside Pressure Drop (in H20) Performance DataComponent Static Pressure Drops/Fan Drive Selections Table 35 Component Static Pressure Drops (in. H2O) Table 36 Supply Air Fan Drive Selections Table 37 Exhaust Air Fan Drive Selections Table 38 Return Air Fan Drive Selections Electrical Data Electrical Service Sizing Set 1. Cooling with Gas Heat Air Handling Units Set 2. Cooling with Electric Heat GENERAL NOTE Electrical Data Table 39 Electrical Service Sizing DataMotors Table 40 Electrical Service Sizing DataElectric Heat Module (Electric Heat units Only) Table 41 Electrical Service Sizing DataControl Power Transformer (Heating Mode Only) Electrical Data Page Unit Dimensions Table 44 Unit Dimensions (In.)One-Piece Unit Unit Dimensions Table 45 Downflow/Horizontal Airflow Configuration Dimensions (In.) Electrical Entry Details Figure 28. Electrical Entry Details/Bottom View Page Page RT-PRC031-EN 85 Minimum Clearance Details Figure 31. Table 46 Minimum Required Clearance Downflow Roof Curb Figure 32. Optional Roof Curb (Downflow) Table 47 Downflow Roof Curb Dimensions (In.) Page Page Field Installed Sensors VAV and CV Figure 35. Field Installed VAV and CV Zone Sensors 90 RT-PRC031-EN Field Installed Sensors VAV and CV WALL OR DUCT MOUNT CO2 ZONE SENSORS Figure 36. Field Installed VAV and CV Zone Sensors Note: Thedimensions are the samefor both the sensor andthe receiver. WIRELESS ZONE SENSOR Weigh ts Table 48 Approximate Operating Weights (Lbs.) Page Weights Table 50 Roof Curb Weights Options Chilled Water Cooling Cooling Only/Heating Casings Blank Sections Fan Optio ns Filters Fresh Air System Control Agency Approval Miscellaneous Options Field Installed Accessories Electronic Zone Sensors Roof Curb Mechanical Specifications General Casing Access Doors Blank Sections Cooling System Chilled Water Coil Water Va lve External Piping Enclosure Air Handling System Supply Fan Filters MERV 14, 90-95 Percent, Low Pressure Drop, Totally Incinerable, Cartridge, Final Filter MERV 14, 90-95 Percent, High Temperature Rated, Cartridge, Final Filter Option MERV 17, 99.97 Percent, Standard Temperature Rated, HEPA, Final Filter Option MERV 17, 99.97 Percent, High Temperature Rated, HEPA, Final Filter Option Exhaust Air General No Relief (Standard) 100 Percent Modulating Exhaust Fan Optio n 100 Percent Modulating Exhaust Fan with Statitrac Control Option Return Air 100 Percent Modulating R eturn Fan 100 Percent Modulating R eturn Fan with Statitrac Control Option Fresh Air General Heating System Electric Heating Option Gas Fired Heating Option Steam Heating Option Hot water Heating Op tion CO2 Sensing