Trane Voyager 2 Manual
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RT-PRC014H-E4 21 Equipment Protection/Operation Timings and Features Increased reliability Fewer components (moving electromechanical parts); less likelihood of equipment down time or failure. Standard Proportional Integral (PI) Control Proportional - sets corrective action proportional to deviation from setpoint. Integral - ne-tunes the rate of corrective action proportional to the error (results in superior temperature control). Standard Built In “TEST” Mode Aids in quick veri cation of system and control operation; exercises both hardware and software (no special tools required). Standard On Board Diagnostics Assists with equipment troubleshooting if a problem should occur. Standard Low Ambient Start Timer (LAST) Function Bypasses low pressure control when a compressor starts, eliminating nuisance compressor lockouts. Standard Anti Short Cycle Timer (ASCT) Function Provides a three minute minimum “ON” time and a three minute minimum “OFF” time for compressors; enhances compressor reliability by ensuring proper oil return. Standard Time Delay Relay (TDR) Function Provides an incremental staging delay between compressors; minimizes equipment current inrush and consumption by keeping compressors from starting simultaneously. Standard Built In Fan Delay Relay (FDR) Provides custom indoor fan timing sequences for the different types of equipment, enhancing ef ciency and reliability. Standard Built in Evaporator Defrost Control Provides low ambient cooling down to -18°C. Standard Intelligent Fallback Built-in Default Control provides adaptive operation, which allows the equipment to continue to operate, and provide comfort in the event of certain input failures. Also, allows temporary operation without a thermostat. Standard Emergency Stop Terminals on Low Voltage Terminal Board Provides a convenient point to disable the equipment completely and immediately. Standard Lower Installation Cost When using a Trane THS03 or THP03, control voltage wiring may be run up to ve times further than any electromechanical system with no increase in wire section. Example: Electromechanical System - 22 m using 0.5 mm 2 wire. Microcontrol System (THS/P 03) 110 m 0.5 mm2 wire. Standard Alternating Lead/Lag During periods of part load operation, each compressor cycles alternately as circuit number one, equalizing compressor wear and run time. Enable by cutting the wire at RTRM junction number J3-8. Demand defrost - Heat pump Defrost only if needed; not based on time like most other systems. Adapts to changing weather conditions and lowers operating costs. Standard Heat pump Soft Start Provides a smooth transition into heating after defrost, minimizing noise and compressor stress associated with switch over. Standard Heat pump Smart Recovery and Smart Staging Inhibits auxiliary heat operation if the space is recovering adequately (0.1°C /min) with the heat pump alone, providing considerable savings in operating costs. Standard TD5 service and diagnostic user display 5 display allows you to view data and make operational changes on Voyager rooftop equipped with Reliatel control v3.4 or above. 5 is an 5” (127mm diagonal) high resolution color touch screen display 5 provides in 26 languages: 15 different reports (3 custom, 12 standard), 12 differents graphs (4 custom, 8 standard) View and reset Historic of last 100 detailed alarms. Graph data can be exported to an excel le through USB memory stick. Figure 9 Controls
RT-PRC014H-E4 22 Economizer Preferred Cooling Provides fully integrated operation. Will not turn on a compressor with the economizer, if the space is recovering adequately with the economizer alone (0.1°C./minute). Allows the equipment to be utilized in more varied applications. Standard with economizer Features lost when using a conventional thermostat When a Conventional Thermostat is applied, equipment operation differs signi cantly. The basic equipment protection features remain intact, and the following features end bene ts are lost : Proportional Integral (PI) control is lost, equipment is controlled by a thermostat or generic building automation system device. Intelligent Fall Back is lost, if a failure occures in the device controlling the equipment, operation will cease. Heat Pump Smart Recovery and Smart Staging is not available. Heat Pump operation becomes more costly unless the generic control applied can accomplish this. Field-installed Control Options Zone sensors Zone sensors are the building occupants’ comfort control devices. They replace the conventional electromechanical thermostats. Zones sensors are to be used with the Voyager™ II units with the Micro control. These sensors are available in the following options: THP03: Sensor, programmable setpoint and operation mode according to a schedule TZS01: Sensor only, used when connected with CCP2 or Tracker™ TZS02: Sensor and setpoint adjustable thumbwheel THS03: Sensor, setpoint and operation mode, unit Led indication (mode and alarms) Figure 10 – From left to right: TZS01, TZS02, THS03 THP03 Room thermostats Trane Communication Interface TCI-R This microprocessor interface allows the unit to communicate to Trane’s Integrated Comfort™ system (CCP2). LonMark ® Communication Interface LCI-R This microprocessor interface allows the unit to communicate to Trane’s Integrated Comfort™ system (Tracer SC, Tracker™) or other open building automation systems Figure 11 – THS03 room thermostat Figure 12 – THP03 room thermostat Controls
RT-PRC014H-E4 23 Table 13 – Characteristics of Programmable and Conventional Thermostats Conventional Thermostat THS03 THP03 Programmable●-● Electronic●-● Control type design Electro-mechanical Reliatel For cooling-only units (TS*/TK*)●●● For heat pump units (WS*/WK*)●●● For gas-fi red units (YS*/YK*)●●● Number of cooling stages 2 3 3 Auxiliary heating stages (electric heater, hot water coil) 2 2 / 1 Modulating Liquid crystal display●-● ● Available - Not Available Tracker™ multi rooftops centralized control Intuitive, menu-driven user interface 2 wires cable communication with units (LonMark®) 5-day scheduling and 10 schedules Capability of including all equipment and devices in one schedule Temporary schedule override Easy-to-administer security system with two levels of access Automatic daylight savings time changeover Error and alarm messaging Setpoint viewing and editing Trend data collection Features exclusive to the PC software (optional) 5 - Ethernet connection Backup and restore capability Standard graphics and HTML graphical interface Binary output programming capability ned custom alarms capability Connection to controllers over shared Ethernet/IP connection E-mail forwarding of alarms and messages Standard timed override (after hours) usage report Standard daily, monthly, and yearly energy reports Note: The Tracker PC software is not needed to set up and operate a typical building. Figure 13 – Tracker interface Controls
RT-PRC014H-E4 24 General Units shall be dedicated down ow or horizontal air ow. Operating range shall be between 50°C and -18°C cooling as standard for all units. All units shall be factory assembled, internally wired, fully charged with refrigerant, and 100 percent run-tested before leaving the factory. Wiring internal to the unit shall be colored and numbered for simpli ed identi cation. Unit shall be available with a main refrigeration circuit in cooling only and reversible version. Auxiliary heat type shall be selectable: Hot water heat, Gas heater and electrical heater in both refrigeration circuit versions. Performance The unit shall be certi ed and registered on the Eurovent certi cation under RT program (http://www.eurovent- certi cation.com). Unit net EER shall be class B (>2.80) or higher in cooling mode except for reversible unit of 79kW and 88kW Eurovent cooling capacity .Reversible Unit net COP shall be class B (>3.20) or higher in Heating mode. Casing Unit casing shall be constructed of zinc coated, heavy- gauge, galvanized steel. All exterior components shall be mounted in a weather resistant steel cabinet and painted with a polyester white RAL 9002 powder paint. Where top cover seams exist, they shall be double hemmed and gasket sealed to prevent water leakage. Cabinet construction shall allow access for all maintenance on two sides of the unit. Service panels shall have handles and shall be removable while providing a water and air tight seal. The indoor air section shall be completely insulated with re resistant, permanent, odorless glass ber material, aluminum foil faced. The base of the unit shall have provisions for crane lifting. Service Access ¼ locks: Standard Electrical Control box access panel Filter access panel and supply fan access panel shall be locked by ¼ turn locks as standard for ease of unit service. Filters Unit shall be provided on standard with 50 mm, throwaway EU3 lters. 50 mm EU4 lters shall be optional. Compressors All units shall have scroll type compressors. Compressor shall be direct-drive, hermetic with self-lubrication. Motor shall be suction gas-cooled and shall have a voltage utilization range of plus or minus 10 percent of unit nameplate voltage. Internal temperature and current sensitive motor overloads shall be included for maximum protection. Each compressor shall be protected by external discharge temperature thermostat, winding temperature thermostat and reverse rotation/ phase loss protection. Each compressor shall have crankcase heaters installed, properly sized to minimize the amount of liquid refrigerant present in the oil sump during off cycles. All scroll compressors shall be protected with phase monitoring protection.Refrigerant Circuits The unit shall be operating with R410A HFC-based refrigerant. Each refrigerant circuit shall have independent thermostatic expansion devices, service pressure ports and refrigerant line lter driers factory- installed as standard. An area shall be provided for replacement suction line driers. Refrigeration circuit shall be protected against refrigerant leak by a low pressure switch. Service valves shall be provided as standard and located on low pressure and high pressure side of the refrigeration piping. Evaporator and Condenser Coils Condenser coils shall have 3/8” (10 mm) copper tubes mechanically bonded to lanced aluminum plate ns. Evaporator coils shall be 3/8” (13 mm) internally nned copper tubes mechanically bonded to high performance aluminum plate ns. All coils shall be leak tested at the factory to ensure pressure integrity. All coils shall be leak tested to 2.1 MPa and pressure tested to 4.5 MPa. All evaporator coils shall be of intermingled con guration. Sloped condensate drain pans are standard. Indoor coil shall be protected as optional by an ant frost thermostat. Outdoor Fans The outdoor fans shall be direct drive, statically and dynamically balanced, draw-through in the vertical discharge position. The fan motors shall be permanently lubricated and shall have built-in thermal overload protection. Indoor Fan Units shall have belt driven, forward curved centrifugal fans with variable diameter motor sheaves. All motors shall be protected from overload. Controls Unit shall be completely factory wired with necessary controls and terminal block for power wiring. Units shall provide an external location for mounting fused disconnect device. Unit controller shall be provided for all 24 volt control functions. The resident control algorithms shall make all heating, cooling and/ or ventilating decisions in response to electronic signals from sensors measuring indoor and outdoor temperature. The control algorithm maintains accurate temperature control, minimizes drift from set point and provides better building comfort. Unit controller shall provide anti-short cycle timing and time delay between compressors to provide a higher level of machine protection. Heat pump unit shall manage defrost cycles based on demand defrost logic. Unit shall be powered by 400V/3/50Hz supply (without neutral) on a single point of power connection. Mechanical Specifications
RT-PRC014H-E4 25 Operation and diagnostic display The unit shall be equipped with a 5’ high resolution color touch screen LCD display. The display allows you to view data and make operational changes on the rooftop. Display shall provide in 26 languages: 5 different reports (3 custom, 12 standard), 12 different graphs (4 custom, 8 standard) View and reset historic of last 100 detailed alarms. Graph data shall be exported to an excel le through USB memory stick. Ventilation Override Shall allow a binary input from the re/life safety panel to cause the unit to override standard operation and assume one of two factory preset ventilation sequences, exhaust or pressurization. The two sequences shall be selectable based open a binary select input. Phase Monitoring Relay: Standard Unit shall detect phase loss, phase reversal from main power supply. In case of fault, the unit shall stop. Through-The-Base Electrical Provision: Standard An electrical service entrance shall be standard which allows access to route all high and low voltage electrical wiring inside the curb, through the bottom (vertically) and through the side (Horizontally) of the outdoor section of the unit and into the control box area. Disconnect Switch: Optional A factory installed disconnect switch with external handle shall be mounted inside the unit control box. Options and Accessories Manual Fresh Air Damper A manually controllable outside air damper shall be adjustable for up to 25 percent outside air. Manual damper is set at desired position at unit start up. Motorized Fresh Air damper This option shall be factory mounted. Outdoor air rate shall be adjustable from 0 to 50 percent. Once set, outdoor air dampers shall open to set position when indoor fan starts. The damper shall close to the full closed position when indoor fan shuts down. Economizer - Downfl ow Economizer shall be factory installed. The assembly includes: fully modulating 0-100 percent motor and dampers, minimum position setting, preset linkage, wiring harness, and differential enthalpy control. It shall be provided with barometric relief damper. Barometric relief damper shall deliver a space pressure equalization and be gravity closing to prohibit entrance of outside air during the equipment “off” cycle. Economizer - Horizontal fl ow Economizer shall be factory installed. The assembly includes: fully modulating 0-100 percent motor and dampers, minimum position setting, preset linkage, wiring harness, and differential enthalpy control.Power Exhaust Fan Power exhaust shall be optional with the down ow economizer. It shall be available as a factory installed option on all units size. It shall assist the barometric relief damper in maintaining building pressurization. Remote Potentiometer A remote potentiometer shall be available to remotely adjust the unit fresh air damper minimum position. CO 2 Sensor This accessory shall be compatible with motorized Fresh air damper and economizer options. It shall measure CO 2 concentration in order to increase or decrease the fresh air amount in the building. Direct driven Variable Frequency fan: Optional VFDs shall be factory installed and tested to provide supply fan motor speed modulation. The VFD shall receive speed reference from the unit controller based upon supply zone heating/cooling demand and shall cause the drive to accelerate or decelerate as required to maintain the zone temperature setpoint. The fan coupling shall be direct type with the motor shaft. Units shall have a soft rubber direct coupling between centrifugal fans and motor. Motor, fan and VFD shall be individually replaced in case of maintenance operation. Fan Fail Switch This option allows checks for supply fan pressure. The fan failure switch will stop all unit functions and report Service alarm on the zone sensor module or Building management system. Clogged Filter Switch This option allows for individual dirty lter indication. The switch will light the Service LED on the zone sensor and will allow continued unit operation. Smoke Detector This option shall trip off in case of presence of smoke in the supply side of the unit and shall close the return air damper, if any, and stop the unit. Phase Monitoring Relay The phase monitoring relay shall detect phase loss, phase reversal and phase imbalance from main power supply. In case of fault, the unit must stop. Black Epoxy Fin Coating An optional coil corrosion resistant coating shall protect indoor and outdoor aluminum ns. Fire thermostats Field installed manually resettable high temperature thermostats shall provide input to the unit controls to shut down the system if the temperature sensed at the return is 57°C or at the discharge 115°C. Mechanical Specifi cations
RT-PRC014H-E4 26 Roof Curb - Downfl ow The roof curb shall be designed to mate with the down ow unit and provide support and watertight installation when installed properly. The roof curb design shall allow eld fabricated rectangular supply/return ductwork to be connected directly to the curb. Curb shall be shipped knocked down for eld assembly. Adjustable Roof Curb This factory assembled accessory is adjustable on site and allows correction of the slope of the roof up to 5%. Hot Water Coil This option shall be factory mounted and placed in the discharge section. It shall be shipped with one 3-way valve, 0 to 100% modulating built-in control and freezestat protection. If needed, on reversible unit, hot water coil shall be selected as rst source of heat before mechanical heating. Electric Heaters Electric heat shall be available for factory installation within basic unit. Electric heater elements shall be constructed of heavy-duty nickel chromium elements we connected for 380 and 415 volt. Staging shall be achieved through the unit controller. Each heater package shall have automatically reset high limit control operating through heating element contactors. All heaters shall be individually fused from factory, where required. Gas Heater The heating section shall have a drum and tube heat exchanger(s) design using corrosion resistant steel components. A forced combustion blower shall supply premixed fuel to a single burner ignited by a pilotless hot surface ignition system. In order to provide reliable operation, a negative pressure gas valve shall be used that requires blower operation to initiate gas ow. On an initial call for heat, the combustion blower shall purge the heat exchanger(s) 45 seconds before ignition. After three unsuccessful ignition attempts, the entire heating system shall be locked out until manually reset at the thermostat. Units shall be suitable for use with natural gas or propane ( eld installed kit). All units shall have two stage heating. Burner of 48kW and 70kW shall have a no emissions of CO (< 0.001%) and NOx emission below 30ppm (class 5 according to the requirements of Standard EN483). Burner of 77kW shall have a no emissions of CO (< 0.001%) and NOx emission below 50ppm (class 4 according to the requirements of Standard EN483) Energy Recovery Module - General Heat recovery should include direct driven exhaust fan. Fan speed should be adjusted by a separate frequency drive according to fresh air ow in order to maintain building pressurization.Fresh air ow shall be ltered before entering in the heat exchanger in order to prevent clogging on the fresh air side. When free cooling is needed, energy recovery should be by-passed to avoid heat exchange on the fresh ow entering into the building. Energy Recovery Module - Plate heat exchanger version Energy recovery module should have a total ef ciency of 51% or higher at -5°C outdoor, 19°C indoor and 30% fresh air rate. Module shall be equipped with freeze monitoring pressure switch that initiate defrost cycle when exchanger in clogged by frost in winter application. Energy Recovery Module - Heat wheel version Energy recovery should have a total ef ciency of 64% or higher at -5°C outdoor, 19°C indoor and 30% fresh air rate. Fresh air and exhaust air ow shall be ltered before entering in the heat exchanger in order to prevent exchanger clogging. Thermostats and Zone Sensors The thermostats and zone sensors shall be provided to interface with the ReliaTel ® unit controls and shall be available in either manual, automatic programmable with night setback, with system malfunction lights or remote sensor options. Communication Interface (TCI-R) ReliaTel ® Trane Communication Interface (TCI) shall be provided to interface with the Trane Integrated Comfort™ System and shall be available as a eld or factory- installed. The TCI-R shall allow control and monitoring of the rooftop unit via a two wires communication link. Trane Modbus Communication Interface (PIC) Modbus Communication Interface (PIC) shall be provided to interface with the Trane Integrated Comfort™ System and shall be available eld-installed. The PIC shall allow control and monitoring of the rooftop unit via a two wire communication link and Modbus protocol. LonTalk ® Communication Interface (LCI-R) The eld or factory-installed ReliaTel ® LonTalk Communication Interface (LCI-R) will be provided to interface with the Trane Integrated Comfort™ System or LonTalk ® capable third party building management networks. The LCI-R will allow control and monitoring of the rooftop unit via a two wires communication link. Tracker ® Multi rooftop centralized management control Simple Building Control The Tracker building automation system (BAS) is a heating, ventilating, and air conditioning (HVAC) energy management system for small- to medium-size buildings. It provides reliable, centralized control for HVAC equipment, managing it for optimal comfort and ef ciency. Mechanical Specifi cations
RT-PRC014H-E4 27 The Tracker BAS includes a controller with a liquid crystal display (LCD) touch screen. The Tracker BAS also includes optional Windows-based software that can be installed on a PC workstation. Connection between Tracker BAS and PC software is possible through modem, direct serial RS232 link or Ethernet IP communication. The Tracker BAS is LonMark ® compliant. It communicates with supported devices over a Trane Comm5 link. The Trane Comm5 link is a communication link that implements LonTalk and a LonTalk FTT-10A network. LonTalk is an open, industry-standard protocol. The touch screen provide an easy-to-use visual interface. The interfaces enable an operator to set up and change HVAC operating parameters and collect and display building information. The Tracker BAS offer these features: Intuitive LCD touch screen user interface 5-day scheduling and 10 schedules Capability of including all equipment and devices in one schedule Temporary schedule override Easy-to-administer security system with two levels of access Automatic daylight savings time changeover Error and alarm messaging Setpoint viewing and editing guration When Trane Comm5 devices are used as a system and power is applied to the controller, the Tracker BAS automatically con gures itself. It is no longer necessary to program the building management system. During auto con guration, the controller: Discovers all devices on the communication link Loads all devices into a non-erasable memory database Turns to On or Occupied all discovered HVAC equipment except the binary output relays of the Tracer MP503 I/O module, which remain de-energized (Off) Reliatel ® Unit controller Originated Data Unit operating mode Unit failure status Cooling failure Heating failure Emergency service stop indication Supply fan proving Timed override activation High temperature thermostat status Supply air temperature Cooling status (all stages) Stage activated or not Stage locked out by Reliatel HPC status for that stage Compressor disable inputs Number of stages activated High temperature limit status Requested minimum position Dry bulb/enthalpy input status Outside air temperature Outside relative humidity Humidity sensor Outdoor Air Temperature sensor Supply Air Temperature sensor Return Air Temperature sensor Zone temperature sensor Mode input Cooling/heating setpoint from sensors Unit mounted potentiometer guration data Gas or electric heat Economizer present Local mode setting lter service indicator 2 setpoint 2 value Building Management System communication Originated Data Command operating mode Host controllable functions: Supply fan Economizer Cooling stages enabled Heating stages enabled Emergency shutdown Minimum damper position Supply air tempering enable/disable Slave mode (CV only) Daytime warm-up enable/disable Power exhaust setpoint Mechanical Specifi cations
Trane optimizes the performance of homes and buildings around the world. A business of Ingersoll Rand, the leader in creating and sustaining safe, comfortable and energy ef cient environments, Trane offers a broad portfolio of advanced controls and HVAC systems, comprehensive building services and parts. For more information visit www.Trane.com Trane has a policy of continuous product and product data improvement and reserves the right to change design and speci cations without notice. © 2014 Trane All rights reserved RT-PRC014H-E4 July 2014 Supersedes RT-PRC014-E4_0513We are committed to using environmentally conscious print practices that reduce waste.