Trane RT-PRC031-EN manual Mechanical Specifications Cooling System Chilled Water Coil, Water Valve

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Mechanical Specifications

Cooling System

Chilled Water Coil

Coils shall be of type 5W, W, or WD and have a tube in sheet design with 5/8” OD, 0.020” copper tubing mechanically bonded to aluminum fins. Headers shall be constructed of copper tubing with steel pipe connections. Coil casing shall be a minimum 16-gauge G90 galvanized steel with formed end supports and top and bottom channels.

Multiple row and fin series options shall be available including 2, 4, 6, or 8 rows and 80, 108, 144, or 168 fins per foot. Optional, performance enhancing, turbulators shall available for all chilled water coils. All coils shall be factory burst tested at 300 PSIG and leak tested at 200 PSIG.

All coils shall have drain holes. Water diverters and a double sloped galvanized drain pan shall be provided to direct condensate to both sides of the unit.

Water Valve

A 1.5”, 2.0”, 2.5”, or 3.0” water modulating valve with actuator and linkage shall be provided by the manufacturer. Valve, actuator, and linkage shall be field installed and piped by the piping contractor.

External Piping Enclosure

A piping cabinet shall be supplied by the manufacturer (factory assembled) when the chilled water cooling option is selected. The piping cabinet shall be mounted external to the air handler unit and shipped separate to be field installed. The piping cabinet shall have a removable panel.

Air Handling System

Supply Fan

Standard or low airflow supply fan shall have a single fan assembly with double width, double inlet, airfoil fan, motor and fixed pitch sheave drive. All fans shall be statically and dynamically balanced for the operating envelop. It shall be tested in the factory. Supply fans shall be test run in unit as part of the unit test. Fan operating envelop rpm shall be

below first critical speed. Fan shafts shall be mounted on two grease lubricated ball bearings designed for 200,000 hours average life. Extended grease lines shall allow greasing of bearings from section base rail. Fan motor and fan assembly shall be mounted on common base to allow consistent belt tension with no relative motion between fan and motor shafts. Entire assemblies shall be completely isolated from unit by two-inch deflection spring isolators.

Controls

Unit shall be completely factory wired with necessary control and contactor pressure lugs or terminal block for power wiring. Units shall provide an internal location for a non-fused disconnect with external handle for safety.

Unit Controller

DDC microprocessor controls shall be provided to control all unit functions. The control system shall be suitable to control CV or VAV applications. The controls shall be factory installed and mounted in the main control panel. All factory installed controls shall be fully commissioned (run tested) at the factory. The unit shall have a Human Interface Panel with a 16 key keypad, a 2 line X 40 character clear English display as standard to provide the operator with full adjustment and display of control data functions. The unit controls shall be used as a stand- alone controller, or as part of a building management system involving multiple units.

1

The unit shall be equipped with a complete microprocessor control system. This system shall consist of temperature and pressure (thermistor and transducer) sensors, printed circuit boards (modules), and a unit mounted Human Interface Panel. Modules (boards) shall be individually replaceable for ease of service. All microprocessors, boards and sensors shall be factory mounted, wired and tested.

The microprocessor boards shall be standalone DDC controls not dependent on communications with an on-site PC or a Building

Management Network. The microprocessors shall be equipped with onboard diagnostics, indicating that all hardware, software and interconnected wiring are in proper operating condition.

The modules (boards) shall be protected to prevent RFI and voltage transients from affecting the board circuits. All field wiring shall be terminated at separate, clearly marked terminal strip. Direct field wiring to the I/O boards is not acceptable.

The microprocessor's memory shall be non-volatile EEPROM type requiring no battery or capacitive backup, while maintaining all data.

2

Zone sensors shall be available in several combinations with selectable features depending on sensor.

3

The Human Interface Panel keypad display character format shall be 40 characters x 2 lines. The character font shall be 5 x 7 dot matrix plus cursor. The display shall be Supertwist Liquid Crystal Display (LCD) with blue characters on a gray/ green background which provides high visibility and ease of interface. The display format shall be in clear English.

4

The keypad shall be equipped with

16individual touch-sensitive membrane key switches. The switches shall be divided into four separate sections and be password protected from change by unauthorized personnel. The six main menus shall be STATUS, SETPOINTS, DIAGNOSTICS, SETUP, CONFIGURATION and SERVICE MODE.

Trane LonTalk® Communication Interface Module (LCI-I)

The LCI-I provides an interface to a Tracer Summit system or other control system that supports LonTalk and shall be factory installed, allowing for control and monitoring of the unit through a RS485, two-wire communication link.

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Contents IntelliPak II Air Handlers Introduction Table of Contents Controls Cabinet Mechanical Features and BenefitsStandard Features Features and Benefits Optional Features Features Summary Features and Benefits Field Installed AccessoriesInstallation and Service ReliabilitySimplifying the Comfort System Features and Benefits Application FlexibilityIntegrated Comfort with Trane Tracer LCI Optimum Building Comfort Control Features and BenefitsInteroperability Statitrac Statitrac Direct Space Building Pressurization ControlVariable Frequency Drives VFD Supply Fans with Inlet Guide VanesSupply Air Temperature Controls Supply Air Pressure Control Controls Variable Air Volume VAV OnlyHeating Controls Variable Air Volume VAV OnlySupply Air Setpoint Reset Zone Temperature Control Occupied Zone Temperature Control Controls Constant Volume CV OnlyHeating Gas Heating Two-StageUnoccupied Zone Temperature Control Controls Constant Volume CV Only Auto ChangeoverCooling and Heating Hot Water or Steam HeatingSpace Pressure Control Statitrac Controls VAV and CVMorning Warm-up Options Emergency OverrideVentilation Override Module VOM Controls VAV and CVHuman Interface Panel Main Menu Human Interface Panel HIGeneric Building Automation System Module Gbas 0-5 vdc Chilled Water Coil Freeze Stat Generic Building Automation System Module Gbas 0-10 vdcSteam and Hot Water Coil Freeze Avoidance Night Setback SensorsOccupied/Unoccupied input on the RTM Dry Bulb Temperature Control of EconomizerTrane Tracer or BAS System Timed Override ActivationLonTalk Building Automation System Humidification ControlReturn Fan Control TwinningExhaust/Return Fan Options Applications ConsiderationsApplication Recommendations AdvantagesApplications Considerations Supply and Return Airflow ConfigurationsReturn Airflow Configuration Supply Airflow ConfigurationWith Bag CartridgeVentilation Override Sequences Corrosive AtmospheresNatural Gas Heating Considerations Acoustical ConsiderationsClearance Requirements Unit PlacementExternal Piping Enclosure Duct DesignProtecting Hydronic Coils From Freezing Selection Procedure Selection Procedure Return Fan Motor Sizing Exhaust Fan Motor SizingUnit Electrical Requirements Altitude CorrectionsDigit 7 Chilled Water Coil FIN Series Model Number DescriptionDigit 20 System Control Selection Model Number DescriptionDigit 38 Belt Guards Burglar BARS/MARINE Lights General Data General Data All dimensions in inchesGeneral Data Economizer Outdoor Air Damper Leakage at rated airflowi Gas Heat Inputs/Input RangesInputs MBH Input MBH Range MBH Standard Damper Optional Low Leak DamperWet Bulb Temperature Btu per Pound Performance Adjustment FactorsEnthalpy of Saturated Air Gas Heating Capacity Altitude Correction FactorsDB F WB F Performance Data-Chilled Water Coil CapacitiesChilled Water Coil Capacities-2 Row 5W Chilled Water Coil Capacities-4 Row W Performance Data-Chilled Water Coil CapacitiesChilled Water Coil Capacities-6 Row WD Chilled Water Coil Capacities-8 Row WD Total Static Pressure Std Air Supply Fan Performance Standard CFM Casing a1644 Supply Fan w/o IGV 931 Supply Fan Performance Standard CFM -Casing B1117 Supply Fan Performance Standard CFM-Casing B 749 Supply Fan Performance Standard CFM Casing C1019 Std Air Total Static PressurePerformance Data Supply Fan with Inlet Guide Vanes Performance Data Supply Fan with Inlet Guide Vanes Supply Fan Performance Standard CFM-Casing a Supply Fan Performance Standard CFM Casing B 1093 1600 RPM 1500 RPM 779 1021 1283 Negative Static Pressure Std Air Performance Data-Exhaust FanStatic PresureInWC Performance Data-Exhaust Fan237i Wocfm 415 Exhaust Fan Performance Standard CFM-Case C 32 Fan0 R P M Return Fan Performance Standard CFM-Case a 36.5 Fan Performance Data-Return FanReturn Fan Performance Performance Data-Return FanReturn Fan Performance Standard CFM-Case B and Case C 40 Fan Return Fan Performance Performance Data-Heat Electric Heat Air Temperature RiseNatural Gas Heating Capacities1 Electric Heat kw RangesHot Water Coil Heating Capacities Q/ITD Performance Data-HeatSteam Coil Heating Capacities Q/ITD Properties of SteamComponent Static Pressure Drops in. H2O Chilled Water Coil Airside Pressure Drop in H20Filters Prefilter High Low PD Cartridge Bag FiltersCartridge Filters Throw Temp Hi Temp Away Prefilter Casing Drive No Supply Air Fan Drive SelectionsExhaust Air Fan Drive Selections Horse Power HP Low Casing StdReturn Air Fan Drive Selections 15 HP 20 HP 25 HP 30 HP 40 HP Drive NoElectrical Data Electrical Service SizingSet 1. Cooling with Gas Heat Air Handling Units Set 2. Cooling with Electric HeatElectrical Service Sizing Data-Motors Voltage Utilization Range Electrical DataUnit Voltage Nominal Tons Voltage 460 575 FLA Add 90-150Unit Top/Front View Dimensional DataReturn Exhaust Unit Height Fan Casing Dimensional DataUnit Dimensions In.-One-Piece Unit Supply Opening Blank Casing Gas Heat Section Downflow/Horizontal Airflow Configuration DimensionsOpening Electrical Entry Details Piping Chilled Water Piping Locations Unit Option Selection Door Swing Ft. Standard Minimum Required ClearanceMinimum Required Clearance Ft Control Exh BoxCross Member Location Blank Casing Section Dimensions Blank Casing SectionBlank Casing Section Field Installed Sensors Variable Air Volume VAV Field Installed Sensors Constant Volume CV Field Installed Sensors VAV and CV Wireless Zone Sensor Wall or Duct Mount CO2 Zone Sensors Component Weights Lbs WeightsApproximate Operating Weights Lbs Weights Size Wt lbs Control Box Main 454 Convenience Outlet Roof Curb WeightsInstalled Shipping Casing Blank Weight Options Filters OptionsSystem Control Fresh AirMiscellaneous Options Agency ApprovalElectronic Zone Sensors Field Installed AccessoriesRoof Curb Electrical System Mechanical SpecificationsGeneral Water Valve Mechanical Specifications Cooling System Chilled Water CoilExternal Piping Enclosure Air Handling SystemMechanical Specifications Filters Exhaust Air Mechanical SpecificationsNo Relief Standard Percent Modulating Exhaust Fan OptionFresh Air Mechanical Specifications Return AirHeating System CO2 Sensing Page RT-PRC031-EN
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