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Packaged Rooftop
Air Conditioners
®
IntelliPak Rooftops
20 - 130 Tons — 60 Hz
20 - 75 Tons
90 - 130 Tons
October 2001 RT-PRC010-EN
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Introduction ® IntelliPak Designed For T oday and Beyond Innovative technology and an Optionally, for centralized building control on-site, or from a remote impressive line-up of features make the ® the Trane IntelliPak Rooftop line the location, IntelliPak can be configured for ® number one choice for today and the direct communication with a Tracer building management system using a future. twisted pair of wires. With Tracer, the Trane’s rooftop Unit Control Module IntelliPak status data and
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Contents Introduction 2 Features and Benefits 4 Application Considerations 9 Selection Procedure 16 Model Number Description 20 General Data 22 Performance Data 29 Performance Adjustment Factors 28 Controls 75 Electric Power 83 Dimension and Weights 86 Mechanical Specifications 99 Options 96 RT-PRC010-EN 3
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Features and Benefits UL and CSA approval on standard 90-95 percent cartridge filters Standard Features Final filters options 20 to 130 ton industrial/ commercial Two-inch spring fan isolation Barometric relief rooftops (90 to 130 tons) 50 percent modulating exhaust with Fully integrated, factory-installed/ forward-curved fans Meets 672 hours of salt spray testing in commissioned microelectronic accordance to ASTM B117 Standard Trane’s air quality (Traq™) sensor controls Tw
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Features and Benefits Reliability Application Flexibility Features Summary Advanced diagnostics Modularity in design IntelliPak® rooftop features make Microprocessor controls Increased offering of standard options installation and servicing easy and Built-in safeties Generic BAS interface reliable operation a reality. Modular control design Five factory preset/re-definable in the Installation Ease UL approval as standard field ventilation override sequences Forward-curved sup
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Features and Benefits facility. Tracer, a family of building automation products from Trane, is Integrated designed with robust, application specific software packages to minimize Rooftop custom programming requirements and enable system setup and control Systems: through simple editing of parameters in the standard applications software. Profitable, Should you select an Integrated Comfort system for your facility, the accountability for equipment, Simple automation and controls is Trane’s, Inte
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Features and Benefits Statitrac™ Direct Space Variable Frequency Drives Optimum Building Pressurization Control (VFD) Trane’s Statitrac™ control is a highly Variable Frequency Drives are factory Building accurate and efficient method of installed and tested to provide supply/ maintaining building pressure control exhaust fan motor speed modulation. Comfort Control with a large rooftop air conditioner. VFD’s, as compared to inlet guide vanes or discharge dampers, are quieter, more The efficiency
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Features and Benefits ® Proven Design Through Testing and than 400,000 hours of laboratory testing Trane 3-D Scroll Compressor Research and field operation. This work combined Simple Design with 70% Fewer Parts with over 25 patents makes Trane the With over twenty years of development Fewer parts than an equal capacity worldwide leader in air conditioning and testing, Trane 3-D Scroll reciprocating compressor means scroll compressor technology. compressors have undergone more significant reliabi
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Application Considerations EXHAUST AIR OPTIONS Application Recommendations d When is it necessary to provide building 1 Because discharge dampers modulate the airflow, the exhaust fan may be exhaust? Whenever an outdoor air 100 percent modulating exhaust with economizer is used, a building generally Statitrac™ control running unloaded whenever the requires an exhaust system. The purpose economizer dampers are less than 100 For both CV and VAV rooftops, the 100 percent open. of the exhaust system
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Application Considerations 2 economizer’s outdoor air damper system, it does not vary exhaust CFM position and the exhaust dampers track with the amount of outside air entering 100 Percent Exhaust System the economizer outdoor air damper the building. Therefore, if selected for Competitive rooftops use a return air fan position. The amount of air exhausted by more than 40 to 50 percent of supply system for controlling the amount of this fan is controlled by modulating airflow, the building may b
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Application Considerations Horizontal Discharge 20 - 75 tons SXHF, SFHF, SLHF, SSHF, and used as a unit discharge (see note 1). To 90 - 130 tons SXHG, SLHG and SSHG return air horizontally, the exhaust fan The typical rooftop installation has both design units ONLY. With this method the access door (Panel C) can be removed the supply and return air paths routed standard discharge and return openings and used as a return opening. Tables AC- through the roof curb and building roof. are blocked in
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Application Considerations because of the location of the heating perimeter to facilitate ductwork Figure AC-3 is a simplified sketch showing which panels can be used for coil. Horizontal return is accomplished in attachment. If exhaust fans are being horizontal supply and/or return. On 90 to much the same way as on S*HFs by used on an IntelliPak Rooftop unit with removing the exhaust fan access door horizontal return, provisions should be 130 ton units, only one side of the extended casing may
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Application Considerations High Capacity Evaporator Coil depending on the hours of use, the CV and VAV IntelliPak® Rooftops. For quality of maintenance performed, and your convenience the sequences can be Rooftops are popular because of their the regularity of that maintenance. One factory preset or fully field editable from “packaged” nature. Everything needed factor that can have an adverse effect on the Human Interface Panel or Tracer®. is contained in one box; mix-matching is unit life is it
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Application Considerations It is impossible to totally quantify the maintained to assure adequate exchanger, leading to premature failure. For increased reliability, the effect of building structure on sound serviceability, maximum capacity and recommendation in these applications is transmission, since this depends on the peak operating efficiency. A reduction in response of the roof and building unit clearance could result in condenser full modulation gas heat. For airflow limitations and tem
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Application Considerations Duct Design Figure AC-4 — Unit Placement It is important to note that the rated 1 capacities of the rooftop can be met only if the rooftop is properly installed in the field. A well-designed duct system is essential in meeting these capacities. The satisfactory distribution of air throughout the system requires that there be an unrestricted and uniform airflow from the rooftop discharge duct. 2 This discharge section should be straight for at least several duct diamete
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Selection Procedure This section outlines a step-by-step Table PD-9, a 50 ton unit capacity with Using total of 17,500 cfm and total procedure that may be used to select a standard capacity evaporator coil at static pressure of 2.76 inches, enter Table Trane single-zone air conditioner. The 80 DB/65 WB, 95 F outdoor air PD-36. Table PD-36 shows 15.3 bhp with sample selection is based on the temperature and 17,500 total supply cfm 924 rpm. following conditions: is 551 MBh total and 422 MBh sensib
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Selection Procedure HEATING CAPACITY SELECTION Chart SP-1 — Fan Motor Heat Step 1 — Determine Air Temperature STANDARD MOTOR Entering Heating Module HIGH EFFICIENCY MOTOR 120 Mixed air temperature = RADB + % OA (OADB - RADB) = 70 + (0.10) (0 - 70) = 63 110 F Supply air fan motor heat temperature 100 rise = 46,000 Btu ÷ (1.085 x 17,500 cfm) = 90 2.42 F Air temperature entering heating 80 module = 63.0 + 2.42 = 65.4 F 70 Step 2 — Determine Total Winter Heating Load 60 Total winter heating load =
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Selection Procedure UNIT ELECTRICAL REQUIREMENTS AIR DELIVERY PROCEDURE Supply fan performance tables include Selection procedures for electrical requirements for wire sizing amps, internal resistance of rooftop. For total static pressure determination, system maximum fuse sizing, and dual element external static must be added to fuses are given in the electrical service section of this catalog. appropriate component static pressure drop (evaporator coil, filters, optional Altitude Corrections e
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Selection Procedure In order to better illustrate this HEATING CAPACITY SELECTION procedure, the following example is Step 1 — Determine Air Temperature used: Entering Heating Module Consider a 60 ton rooftop unit that is to Mixed air temperature = RADB + % OA deliver 18,000 actual cfm at 3-inches total (OADB - RADB) = 70 + (0.10) (0 - 70) = 63 static pressure (tsp), 55 F leaving air F temperature, at an elevation of 5,000 ft. Supply air fan motor heat temperature 1 rise = 46,000 Btu ÷ (1.085 x
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Model Number Description 1 S F H F C 5 5 F H A 5 5 C 6 9 D 3 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 3 4 5 6 7 8 9 10 11 121314151617181920212223 24 252627 28 29 30 31 32 33 34 35 36 37 38 DIGIT 1 — UNIT TYPE DIGIT 11 — EXHAUST OPTION 4 = Space Pressure Control with Exhaust S = Self-Contained (Packaged Rooftop) 0 = None VFD w/o Bypass 1 = Barometric 5 = Space Pressure Control with Exhaust DIGIT 2 — UNIT FUNCTION 2 = 100%, 1.5 HP W/Statitrac VFD and Bypass A = DX Cooling, No Heat 3 = 100%
