Table of Contents
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H-IM-79E JANUARY 2011 Part No. 25001401
Replaces H-IM-79E (09/07)
Installation and
Beacon II™
Refrigeration Systems
Table of Contents
Beacon II™ Board Layout ........................................................ 3
Installation Tips ........................................................................ 4
Refrigerant Line Brazing ........................................................... 5
Power Supply ........................................................................... 5
Wiring ....................................................................................... 5
Multiple Evaporator Configuration ........................................... 6
Box Temperature Control Settings ........................................... 7
Leak Testing ............................................................................. 7
Refrigerant Charging ............................................................... 7
Start-Up Operation .............................................................. 8-11
Operating Mode Display ......................................................... 11
Programming and Reviewing Settings and Changes ....... 12-13
Monitoring Items .................................................................... 14
Monitor Button
Clear/Test Button
Locking The Beacon II Board ................................................. 15
Status Indicator LED ......................................................... 15-16
Low Ambient Operation ......................................................... 16
Pumpdown ........................................................................ 16-17
Defrost ............................................................................... 17-18
Alarms ................................................................................... 18
Error Indicator ......................................................................... 19
Checking Operation of Expansion Valve ........................... 20-21
Power Failures ........................................................................ 21
Spare Sensor Terminals .......................................................... 21
Checking Sensors .................................................................. 21
Sensor Resistance/Temperature Table ................................... 22
System Defaults ..................................................................... 22
InterLink Replacement Parts List ........................................... 23
Operational Limits .................................................................. 23
™
Expansion Valve Capacity ...................................................... 24
Diagnostics ........................................................................ 24-27
Wiring Diagrams ................................................................ 28-33
Preventive Maintenance ......................................................... 34
Service Record .................................................................. 35-36
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Table of Contents
Related Manuals for Heatcraft Refrigeration Products BEACON II H-IM-79E
Summary of Contents for Heatcraft Refrigeration Products BEACON II H-IM-79E
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Page 1: Table Of Contents
H-IM-79E JANUARY 2011 Part No. 25001401 Replaces H-IM-79E (09/07) Installation and Operation Manual Beacon II™ Refrigeration Systems Table of Contents Beacon II™ Board Layout ... 3 Installation Tips ... 4 Refrigerant Line Brazing ... 5 Power Supply ... 5 Wiring ... 5 Multiple Evaporator Configuration ... 6 Box Temperature Control Settings ... - Page 2 © 2007, Heatcraft Refrigeration Products LLC...
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Page 3: Beacon Ii™ Board Layout
Beacon II™ Board Layout BEACON II™ BOARD Defrost Heater Relay Evaporator Relay Display Room Sensor Defrost Sensor Suction Sensor Suction Pressure Expansion Valve Connection Selection Buttons Terminal Block... -
Page 4: Operation Manual
Installation Tips • Use a minimum 18 gauge wire for all low voltage connections • The Beacon II board gets its 24 VAC power supply from a transformer mounted in the electrical end of each evaporator. On 208-240 volt systems the multi-tap transformer is shipped from our factory wired for 240 volts. -
Page 5: Refrigerant Line Brazing
Refrigerant Line Brazing (Caution) The electric expansion valve and the suction temperature sensor on the suction line are factory installed. Care must be taken when brazing these lines at the evaporator. Too high a temperature may destroy these components. Heat absorbing compounds or “wet rags” must be used to protect the electric expansion valve when brazing the refrigerant line connections. The suction line sensor should be removed before brazing. Power Supply The Beacon II board gets its 24 VAC power supply from a transformer mounted in the electrical end of each evaporator. -
Page 6: Multiple Evaporator Configuration
Multiple Evaporator Configuration (Master/slave) If there are multiple evaporators on a system, the program for each SLAVE evaporator must be changed to identify it as a SLAVE. To do so, press the “PROGRAM REVIEW” button repeatedly until “SLA” appears then use the “SELECT” knob to select “YES” then press “ENTER”. -
Page 7: Box Temperature Control Settings
Box Temp Control Settings Box Temperature Control Settings There is an on board room thermostat on • the Beacon II board which can be adjusted to the desired room temperature. The temperature differential is 2° F. Temperature Differential When a system is in the cooling mode and the box setpoint is 35°F, the system will continue to cool until the box temperature gets to 34°F. -
Page 8: Start-Up Operation
Start-Up Operation Single System With 1 Evaporator • Check all wiring connections to be sure they are correct and tight. • On the condensing unit Check the setting of time delay relay. It should be set at 1 minute (the second marker). Check the low pressure switch setting on freezer units. - Page 9 Single System With Multiple Evaporators • Check all wiring connections to be sure they are correct and tight. • On the condensing unit Check the setting of time delay relay. It should be set at 1 minute (the second marker). Check the low pressure switch setting on freezer units.
- Page 10 Multiple Systems With Multiple Evaporators (Requires A Smart Controller) • Check all wiring connections to be sure they are correct and tight. • On the condensing units Check setting of time delay relay. It should be set at 1 minute (the second marker). Check the low pressure switch setting on freezer units.
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Page 11: Operating Mode Display
Initial Power On At the initial application of power to the system, the compressor and the evaporator fans will be in a 4 minute hold-off cycle and will not start immediately. When there is a call for COOLING, the expansion valve (EEV) opens, then the compressor is started. -
Page 12: Programming And Reviewing Settings And Changes
Programming & Reviewing Programming And Reviewing Settings / Changes The PROGRAM REVIEW button is used to program, review and change all program settings for the system. Press “PROGRAM REVIEW” button. The Setpoint item will appear on the LED. After a few seconds delay the Setpoint value will display. Each time the button is pressed a different setpoint item is displayed. - Page 13 Programming & Reviewing Programming And Reviewing Settings / Changes (cont’d.) Use the “PROGRAM REVIEW” button to select these items: Defrost Type – “A-E ” - Selection is made for air • defrost or electric defrost coil. This will automatically set the system factory defaults for air defrost and electric defrost. (See default settings.) Please note that the refrigerant type default for air defrost is R-22 and for electric defrost it is R404A.
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Page 14: Program Review Button Select Button Enter Button Monitoring Items
Programming & Reviewing MONITOR Use the “MONITOR” button to review these items: - Superheat (°F/°C) ESP - Expansion valve steps (0 to 255 steps) SCt - Suction temperature (°F/°C) - Saturated Suction temperature (°F/°C) SCP - Suction pressure at Evaporator (PSIG/HG) Odt - Outdoor temperature (°F/°C) - Defrost sensor temperature (°F/°C) -
Page 15: Locking The Beacon Ii Board
Programming & Reviewing Programming And Reviewing Settings/Changes (Cont’d.) Use this button to “CLEAR/TEST” Pressing this button ONCE will return the LED display to the default display. With the system in the OFF mode, pressing and holding this button will start the “TEST” mode. In the “TEST” mode it will cycle through each output for 10 seconds. -
Page 16: Status Indicator Led
STATUS INDICATOR LED • ERRORS E 1 - E 2 - E 3 - E 4 - E 5 - E 6 - E 7 - E 9 - Multi-in/Multi-out wiring error • OTHERS Coo - Loc - UnL - Low Ambient Operation All units are shipped standard with Head Master valves. (Scroll compressor units have a 100 PSI Head Master valve and all other systems have a 180 PSI head master valve.) Condensing units with multiple condenser fans... -
Page 17: Pumpdown
Service Mode A single pole, single throw switch (SPST) is supplied in each condensing unit for shutting off the system. Closing the “SERVICE” switch in the condensing unit will cause the system to pumpdown and shut off. “Ser” will be displayed on the Beacon board LED and “SERVIC” is displayed on the Smart Controller LCD display. -
Page 18: Defrost
Electric Defrost Mode When a defrost is initiated, the EEV closes, the compressor is allowed to pumpdown and shut off. The evaporator fans are cycled off and the defrost heaters are energized. On multiple evaporator systems, all controllers must terminate their defrost, either on temperature or fail-safe time, before the master controller will end the defrost cycle. -
Page 19: Error Indicator
Error Indicator Led At initial power up, each Beacon II board checks for system errors. The system error check involves checking the various temperature sensors to determine whether any of these sensors are shorted or open. The system will pumpdown and cycle off and will not restart until the fault is cleared or the circuit breaker reset, for the following conditions: Suction sensor shorted, open... -
Page 20: Checking Operation Of Expansion Valve
Checking Operation of Expansion Valve Checking Operation Of Expansion Valve (EEV) To check if the expansion valve is closing properly: Install a pressure gauge-set to suction line at the condensing unit. With the system running, close the valve on the liquid line, at the con densing unit. The system should pumpdown and shut off on the Low Pressure switch (LPS). -
Page 21: Power Failures
Continued from Page 20 Measuring resistance between locations A and C or B and D will always show “Open” because these locations are between the motor windings. When the valve is opening or closing, the voltage measured between A and B or C and D should be between 20 to 22 VAC. -
Page 22: Sensor Resistance/Temperature Table
Table 1. Resistance/Temperature Specification Temperature °F Ohms 10,000 12,490 15,710 19,900 25,400 Table 2. System Defaults PARAMETERS Refrigerant Box Temperature Superheat Slave Evaporator No. of Defrost per Day Defrost Fail-safe time Defrost End Temperature Defrost Delay Start Time Alarm High Temperature Alarm Low Temperature Alarm Time Temperature Units System Defaults Temperature °F 5,320... -
Page 23: Interlink Replacement Parts List
InterLink is your link to a complete line of dependable and certified commercial refrigeration parts, accessories and innovative electronic controls for all Heatcraft Refrigeration Products (HRP) brands - including Bohn, Larkin, Climate Control and Chandler. At InterLink, we provide our wholesalers with a comprehensive selection of product solutions and innovative technologies for the installed customer base. -
Page 24: Expansion Valve Capacity
Expansion Valve Capacity Part Number Valve 29320003 ESVB-1 29320004 ESVB-4 29320007 - 08 ESVB-10 29320013 ESVB-15 29320014 ESVB-20 Beacon II Troubleshooting Guide PROBLEM Step ACTION ITEM Check Primary Power Supply Disconnect Check Voltage to Evaporator Transformer LED is not lit. Check Transformer Secondary Output Volts Check Voltage at Control Board (24V and C) Replace Control Board Check Compressor internal overloads Check Control Power to Condensing Unit... -
Page 25: Diagnostics
Beacon II Troubleshooting Guide (continued) PROBLEM Step ACTION ITEM Check wiring connection to the board Low Pressure Safety (LPS) Tripped: • Check for correct refrigerant type • Check refrigerant charge • Check LPS setting • Check LPS wiring • Check EEV operation (stuck?) • Check coil for icing •... - Page 26 Beacon II Troubleshooting Guide (continued) PROBLEM Step ACTION ITEM Multi-out to Multi-in Check for 24 volts power to the board Communication Wiring (only shows after initial Check for crossed communication wiring successful connection) (multi-out not wired to multi-in terminals) Check for broken communication wiring (E9 continued) Communication Error Occurrence:...
- Page 27 Beacon II Troubleshooting Guide (continued) PROBLEM Step Check system operation: Is it running? Check system charge Check for proper operating superheat Check for high superheat and EEV wide open Check Low Pressure Safety Switch Cannot get to box Compare equipment capacity with requirements temperature Check box temperature setpoint Check compressor performance Check condenser coil for dirt/debris 10.
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Page 28: Wiring Diagrams
Wiring... - Page 29 Wiring...
- Page 30 Wiring...
- Page 31 Wiring...
- Page 32 Wiring...
- Page 33 Wiring...
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Page 34: Preventive Maintenance
EVAPORATORS All evaporator units should be checked once a month or more often for proper defrosting because the amount and pattern of frosting can vary greatly. It is dependent on the coil temperature, the temperature of the room, the type of product being stored, how often new product is brought into the room and the percentage of time the door to the room is open. -
Page 35: Service Record
Date of Start-up Location Address CONDENSING UNIT MODEL # SERIAL # COOLER UNIT MODEL # SERIAL # FREEZER UNIT MODEL # SERIAL # ELECTRICAL • Check Primary Supply voltage. If 208 V, change transformer wiring in the Cooler and Freezer to the 208 V tap YES • Check Compressor Amps for COOLER and FREEZER compressors. - Page 36 RECORD OUTDOOR TEMPERATURE ______°F SYSTEM VOLTAGE Cooler Compressor Amps Freezer Compressor Amps Cooler Discharge Pressure Freezer Discharge Pressure Cooler Suction Pressure Freezer Suction Pressure Cooler Suction Temp. Freezer Suction Temp. Cooler Refrigerant Charge Freezer Refrigerant Charge Cooler Compressor Superheat Freezer Compressor Superheat Cooler Evaporator Superheat Freezer Evaporator Superheat Cooler Discharge Temp.