Bryant 580J*08--14D, F appendix Condenser Coil Service, RTU-MP Control System

Page 35

CONDENSER COIL SERVICE

Condenser Coil

The condenser coil is new NOVATION Heat Exchanger Technology. This is an all-aluminum construction with louvered fins over single-depth crosstubes. The crosstubes have multiple small passages through which the refrigerant passes from header to header on each end. Tubes and fins are both aluminum construction. Connection tube joints are copper. The coil may be one-row or two-row. Two-row coils are spaced apart to assist in cleaning.

Repairing NOVATION Condenser Tube Leaks

RCD offers service repair kit Part Number 50TJ660007 for repairing tube leaks in the NOVATION coil crosstubes. This kit includes approved braze materials (aluminum flux core braze rods), a heat shield, a stainless steel brush, replacement fin segments, adhesive for replacing fin segments, and instructions specific to the NOVATION aluminum coil. See EPIC for instruction sheet 99TA526379.

The repair procedure requires the use of MAPP gas and torch (must be supplied by servicer) instead of conventional oxyacetylene fuel and torch. While the flame temperature for MAPP is lower than that of oxyacetylene (and thus provides more flexibility when working on aluminum), the flame temperature is still higher than the melting temperature of aluminum, so user caution is required. Follow instructions carefully. Use the heat shield.

Replacing NOVATION Condenser Coil

The service replacement coil is preformed and is equipped with transition joints with copper stub tubes. When brazing the connection joints to the unit tubing, use a wet cloth around the aluminum tube at the transition joint. Avoid applying torch flame directly onto the aluminum tubing.

RTU-MP CONTROL SYSTEM

The RTU-MP controller provides expanded stand-alone operation of the HVAC system plus connection and control through communication with several Building Automation Systems (BAS) through popular third-party network systems. (See Fig. 42.) The available network systems are BACnet MP/TP, Modbus and Johnson J2. Communication with LonWorks is also possible by adding an accessory interface card to the RTU-MP. Selection of the communication protocol and baud rate are made at on-board DIP switches.

Bryant’s diagnostic display tools BACviewer6 Handheld and Virtual BACview (loaded on a portable PC) must be used with the RTU-MP controller. Connection to the RTU-MP board is at the J12 access port. (See Fig. 42.)

The RTU-MP control is factory-mounted in the 48TC unit’s main control box, to the left of the LCTB. (See Fig. 43.) Factory wiring is completed through harnesses connected to the LCTB. Field connections for RTU-MP sensors will be made at the Phoenix connectors on the RTU-MP board. The factory-installed RTU-MP control includes the supply-air temperature (SAT) sensor. The outdoor air temperature (OAT) sensor is included in the FIOP/accessory EconoMi$er 2 package.

Refer to Table 15, RTU-MP Controller Inputs and Outputs, for locations of all connections to the RTU-MP board.

580J

35

Page 34 Page 36
Image 35
Page 34 Page 36
Contents Safety Considerations Table of ContentsWhat to do if you smell gas Unit Arrangement and AccessGeneral Seasonal Maintenance Routine MaintenanceManual Outside Air Hood Screen Supply FAN Blower SectionSupply Fan Belt-Drive Supply-Fan Pulley Adjustment Bearings Adjustable-Pitch Pulley on MotorEvaporator Coil Coil Maintenance and Cleaning RecommendationCooling Condenser CoilRoutine Cleaning of Evaporator Coil Surfaces Routine Cleaning of Novation Condenser Coil SurfacesRefrigerant Charge Refrigerant System Pressure Access PortsPuronr R-410A Refrigerant Evaporator Coil Metering DevicesSeatcore Cooling Charging Charts 08D,F Both Circuits Cooling Charging ChartsCooling Charging Charts 12D,F Both Circuits TON Circuit TON Circuit Problem Cause Remedy Cooling Service AnalysisCompressors Condenser-Fan Adjustment 08D-12D,F sizeCondenser-Fan Adjustment 14D,F size Troubleshooting Cooling SystemConvenience Outlets Installing Weatherproof CoverNon-Powered Type Unit-Powered TypeSmoke Detectors Supply Air SensorSmoke Detector Locations All Units Completing Installation of Return Air Smoke SensorFiop Smoke Detector Wiring and Response Return Air Without EconomizerSensor and Controller Tests Dirty Sensor Test Procedure Controller Alarm TestController Alarm Test Procedure Dirty Controller Test ProcedureDirty Sensor Test Using an SD-TRK4 Detector CleaningSD-TRK4 Remote Alarm Test Procedure Remote Test/Reset Station Dirty Sensor TestTroubleshooting Compressor Protection Protective DevicesFuel Types and Pressures GAS Heating SystemControl Circuit Liquid Propane Supply Line Pressure Ranges Supply Pressure SwitchFlue Gas Passageways Combustion-Air BlowerOrifice Projection Burners and IgnitersMain Burners Limit Switch Cleaning and AdjustmentCheck Unit Operation and Make Necessary Adjustments Burner Ignition LED Error Code DescriptionLED Indication Error Code Description Gas Valve Orifice ReplacementRed LED-Status LP Orifice Orifice SizesAltitude Compensation Heating Service Analysis Troubleshooting Heating SystemMinimum Heating Entering Air Temperature IGC IGC Board LED Alarm CodesReplacing Novation Condenser Coil Condenser Coil ServiceRepairing Novation Condenser Tube Leaks RTU-MP Control SystemRTU-MP Multi-Protocol Control Board Typical RTU-MP System Control Wiring Diagram Outputs Supply Air Temperature SAT SensorOutdoor Air Temperature OAT Sensor RTU-MP Controller Inputs and OutputsConnect T-55 Space Temperature SPT SensorsEconoMi$er Outdoor Air Enthalpy Control PNO HH57AC077 Economizer ControlsIndoor Air Quality CO2 Sensor Wiring the Indoor Air Quality SensorDifferential Enthalpy Control Return Air Enthalpy SensorFilter Status Connecting Discrete InputsOutdoor Air Quality Sensor PNO 33ZCSENCO2 plus Weatherproof EnclosureCommunication Wiring Protocols Power Exhaust outputBaud Rate DS2 DS1 RTU-MP TroubleshootingCommunication LEDs Protocol DS8 DS7 DS6 DS5 DS4 DS3 DS2 DS1LEDs on the RTU-MP show the status of certain functions LEDsTroubleshooting Alarms BACnet MS/TP AlarmsModule Status Report Modstat Example Code Name Meaning Basic Protocol TroubleshootingModbus Manufacture DateEconoMi$er IV Component Locations ECONOMI$ER SystemsEconoMi$er IV Wiring EconoMi$er IV Functional View EconoMi$er IV Input/Output LogicOutdoor Dry Bulb Changeover Supply Air Temperature SAT SensorOutdoor Air Lockout Sensor EconoMi$er IV Control ModesOutdoor Enthalpy Changeover Differential Dry Bulb ControlMinimum Position Control Exhaust Setpoint AdjustmentIndoor Air Quality IAQ Sensor Input Demand Control Ventilation DCV Damper MovementThermostats Analog CO2 CO2 Sensor ConfigurationCO2 Sensor Standard Settings Differential Enthalpy DCV Demand Controlled Ventilation and Power ExhaustEconoMi$er IV Sensor Usage EconoMi$er IV PreparationSupply-Air Sensor Input Wiring DiagramsEconoMi$er IV Troubleshooting Completion DCV Minimum and Maximum Position580J Typical Unit Wiring Diagram Power 08D,F, 208/230-3-60 C09157 Gas Piping PRE-START-UPSTART-UP, General Unit PreparationOutdoor-Air Inlet Screens Internal WiringRefrigerant Service Ports Return-Air FiltersSTART-UP, RTU-MP Control Field Service TestConfiguration Unit Start DelayCompressor2 Service Hours Filter Service HoursSupply Fan Service Hours Compressor1 Service HoursInput 2 Function InputSpace Sensor Type Input 1 FunctionCooling, Unit With EconoMi$er Operating SequencesBase Unit Controls Cooling, Units Without Economizer Heating, Units Without EconomizerRTU-MP Sequence of Operation Heating With EconoMi$erDemand Controlled Ventilation Supplemental ControlsBACnet Schedule Always Occupied Default OccupancyScheduling Local ScheduleEconomizer Power ExhaustCooling Torque Values Fastener Torque ValuesIndoor Air Quality Demand LimitPosition Number Appendix I. Model Number SignificanceModel Number Nomenclature Serial Number Format12.5TONS Appendix II. Physical DataPhysical Data Natural Gas Heat, Liquid Propane Heat Heat Anticipator Setting AmpsPhysical Data Heating 12.5TONS 580J**08 580J**12 580J**14 Gas ConnectionCFM RPM BHP Appendix III. FAN Performance580J**08 579 580J**12RPM BHP 580J**141260 General fan performance notesUnit MOTOR/DRIVE Motor Pulley Turns Open Combo Pulley AdjustmentElectrical Information Mocp Unit Combustion PowerNOM IFM FAN Motor Exhaust No P.E Type DISC. SizeWiring Diagrams Appendix IV. Wiring Diagram ListCatalog No.SM580J---02 Appendix V. Motormaster Sensor Locations580J Preliminary Information Unit START-UP Checklist

580J*08--14D, F specifications

The Bryant F,580J*08--14D is an advanced heating and cooling system engineered for optimal performance and energy efficiency in residential and commercial applications. This innovative unit is designed to provide exceptional climate control while reducing operational costs, making it an ideal choice for those seeking reliable HVAC solutions.

One of the standout features of the Bryant F,580J*08--14D is its versatile heating and cooling capabilities. This system employs a two-stage compressor, which allows for precise temperature regulation and improved energy efficiency. This dual-stage operation ensures that the system can adapt to varying environmental conditions, providing enhanced comfort without excessive energy use.

The system is equipped with advanced inverter technology, which enables smoother operation and quieter performance. This technology adjusts the compressor speed based on the heating or cooling demand, leading to increased efficiency and reduced energy consumption. Additionally, the inverter system contributes to less noise during operation, creating a serene indoor environment.

The Bryant F,580J*08--14D also features a user-friendly thermostat that allows for easy temperature adjustments and scheduling. This smart thermostat is compatible with mobile devices, enabling users to monitor and control their HVAC system remotely. This feature provides added convenience and ensures that the system is operating efficiently, even when homeowners are away.

Energy efficiency is a hallmark of the Bryant F,580J*08--14D. The system meets and often exceeds ENERGY STAR® standards, making it one of the more eco-friendly options available in the market today. By utilizing energy-saving technologies and innovative designs, the system helps to lower utility bills and reduce the environmental impact.

Durability and reliability are key characteristics of the Bryant F,580J*08--14D. Constructed with high-quality materials and components, this unit is designed to withstand the rigors of changing weather conditions while maintaining consistent performance. Additionally, it comes equipped with a robust warranty, providing peace of mind for users investing in this heating and cooling solution.

In summary, the Bryant F,580J*08--14D is a top-tier HVAC system that boasts advanced technologies, exceptional energy efficiency, and user-friendly features. Its combination of reliable performance and modern conveniences makes it a standout choice for anyone looking to enhance their home's or business's climate control system, providing comfort and savings for years to come.
Top Page Image Contents