Onicon SYSTEM-20 Installation And Operation Manual
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Onicon SYSTEM-20 Installation And Operation Manual

Btu meter
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ONICON
INSTALLATION AND OPERATION GUIDE
INSTALLATION AND OPERATION GUIDE
SYSTEM-20
SYSTEM-20
For Software Version 0.1.15 and Higher
BTU METER
BTU METER
DOC-0003557 Rev.B

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Summary of Contents for Onicon SYSTEM-20

  • Page 1 SYSTEM-20 SYSTEM-20 BTU METER BTU METER INSTALLATION AND OPERATION GUIDE INSTALLATION AND OPERATION GUIDE ONICON For Software Version 0.1.15 and Higher DOC-0003557 Rev.B...
  • Page 2 • ONICON assumes no responsibilities for this product except as stated in the warranty. • If the customer or any third party is harmed by the use of this product, ONICON assumes no responsibility for any such harm owing to any defects in the product which were not predictable, or for any indirect damages.

  • Page 3: Table Of Contents

    3.2.2.1 Standard Thermowells ....................11 3.2.2.2 Hot Tap Thermowells ....................11 3.2.3 Temperature Sensor Installation ........................13 3.2.3.1 ONICON STANDARD TEMPERATURE SENSOR INSTALLATION ........13 ELECTRICAL INSTALLATION ..............................15 3.3.1 Power and Signal Wiring Connections ......................16 3.3.2 Pulse Input and Output Wiring Connections ....................18 3.3.3 Analog Output and Serial Communication Wiring Connections ...............
  • Page 4 DIAGNOSTIC FUNCTION CODE ............................43 REPORT SLAVE ID FUNCTION CODE ..........................45 FRENCH TRANSLATION OF ALL WARNING, CAUTION AND IMPORTANT NOTES ( TRADUCTIONS EN FRANÇAIS DE TOUS LES AVERTISSEMENTS, MISES EN GARDE ET REMARQUES IMPORTANTES ) ......................................46 ONICON Incorporated 727-447-6140 Page 4 www.onicon.com...

  • Page 5: Introduction

    Serious injury may result from the improper installation or use of this product. 1.2 TYPICAL SYSTEM - 20 ONICON’s System-20 is a true heat (Btu) computer, which accepts data from several sensors, performs a series of computations with that data, and displays and/or transmits...

  • Page 6: Additional Required Hardware

    SYSTEM - 20 BTU METER 1.4 ADDITIONAL REQUIRED The System-20 must be connected to a suitable volumetric flow meter and a HARDWARE matched pair of temperature sensors in order to calculate and report heat data. Please refer to ONICON’s flow meter literature, or contact ONICON for help in selecting the flow meter that will best fit your requirements.

  • Page 7: Warranty & Serial Number

    SYSTEM - 20 BTU METER 1.6 SERIAL NUMBER The serial number of your System-20 is located on the top and inside the enclosure. The serial number is a unique identifier for the product. Please have this number available when contacting ONICON for assistance.

  • Page 8: Installation

    SYSTEM - 20 BTU METER SECTION 3.0 The System-20 BTU Meter should be installed by personnel with related INSTALLATION knowledge and experience in the heating, cooling, and fluid metering fields. ONICON is available to assist with technical recommendations and to provide guidance by telephone and/or e-mail during the installation and commissioning process.

  • Page 9: Mechanical Installation

    SYSTEM - 20 BTU METER 3.1 MECHANICAL IMPORTANT NOTE (8) INSTALLATION The components of the ONICON System-20 BTU Measurement System must be configured, programmed and installed together as a system. Mixing components from different systems may result in significant measurement errors.

  • Page 10: Mounting The Enclosure

    Mount the DIN rail clips as shown. CAUTION (11) DO NOT USE THE ENCLOSURE AS A TEMPLATE FOR DRILLING HOLES. Do not drill holes in the enclosure. Use only the openings that are provided. ONICON Incorporated 727-447-6140 Page 10 www.onicon.com...

  • Page 11: Thermowell Installation

    3.2.2.1 Standard Thermowells Standard thermowells are for new construction or scheduled shutdown. The most common installation methods are shown below. Refer to Appendix A-6 for thermal insulator installations. Consult ONICON for special applications. Copper Tee Welded Pipe Threaded Tee ONICON furnished...
  • Page 12 DO NOT OVER TIGHTEN THE POSITION CLAMPING NUT. If fluid leaks, do not attempt to correct by tightening this nut further. An internal o-ring seals the fluid. Contact ONICON for assistance in the event of a leak. HOT TAP ADAPTER INSTALLATION KIT COMPONENTS “O”...

  • Page 13: Temperature Sensor Installation

    3.2.3 Temperature Sensor Installation When ordered with the System-20, temperature sensors are factory matched and tagged by serial number to a specific Btu meter. ONICON standard temperature sensors are also designated and labeled as the SUPPLY or RETURN sensor and must be installed per these labels.
  • Page 14 BRANCH OUTLET FITTING CAUTION (18) DO NOT OVERTIGHTEN. The thermowell completely seals the plumbing system. Screwing in the sensor just ensures that the sensor tip will remain in contact with the bottom of the thermowell. ONICON Incorporated 727-447-6140 Page 14 www.onicon.com...

  • Page 15: Electrical Installation

    SYSTEM - 20 BTU METER 3.3 ELECTRICAL INSTALLATION The System-20 is provided with three ¾" conduit openings along the bottom of the enclosure for power and signal cables. Two openings are provided with knockout seals. The power cable should enter the enclosure through the right hand opening.

  • Page 16: Power And Signal Wiring Connections

    POWER IN 3. EARTH GROUND (-) N 1. (+) L 1. This terminal block is ONLY for use with ONICON F-1000 Series Turbine Flow Meters. 2. Voltage output for use with non-ONICON Flow Meters - 24VDC @ 50 mA maximum.
  • Page 17 CAUTION (21) Minimum temperature rating of the cable to be connected to the field wiring terminals, 140°F (60°C). IMPORTANT NOTE (22) The System-20 shall be used with an external Class II power supply. FLOW METERS OUTPUT SIGNAL CONNECTIONS System-20 System-20...

  • Page 18: Pulse Input And Output Wiring Connections

    3. (+) 0-10 V OUT WIRE WIRE WIRE WIRE AC/DC POWER IN AUX POWER OUT 2. (-) 4-20 mA COMMON 1. (+) 4-20 mA OUT 24V ONLY 1. Terminals TB4-3 & TB4-4 configured as 0-5V or 0-10V output ONICON Incorporated 727-447-6140 Page 18 www.onicon.com...

  • Page 19: Temperature Sensor Wiring Connections

    2 - 3 = 4-WIRE RTD RTD SELECTION JUMPERS 1. This terminal block for use with an ONICON fixed range (O1 & O2) or loop powered 4-20mA scalable range temperature sensors. See Temperature Inputs Wiring Diagram on page 20 for additional information.

  • Page 20: Temperature Input Wiring Details

    SYSTEM - 20 BTU METER 3.3.5 Temperature Input Wiring Details ONICON FIXED RANGE or LOOP POWERED 4-20mA SCALABLE RANGE TEMPERATURE INPUTS TERMINAL BLOCK TB5 (+) Signal 1. (+) SUPPLY TEMP Supply Temperature Sensor (-) Reference 2. (-) SUPPLY TEMP Shield 3.

  • Page 21: System - 20 Start Up & Commissioning

    To return to the commissioning mode from the user screens, momentarily press MENU. The following page will appear. Momentarily press EXIT to return to the start screen. More Totals EXIT ! Alarm BACK Diagnostic NEXT Meter Data ONICON Incorporated 727-447-6140 Page 21 www.onicon.com...

  • Page 22: Single And Dual Mode Display

    Deg F MENU MENU MENU MENU Supply Delta Temperature BACK BACK Temperature NEXT NEXT Deg F Deg F MENU MENU Return BACK Temperature NEXT Deg F MENU * Auxiliary input pages only appear when enabled. ONICON Incorporated 727-447-6140 Page 22 www.onicon.com...

  • Page 23: Additional Display

    Boot: NEXT NEXT MENU MENU Temperature Sensor Current Time EXIT EXIT Serial Number BACK BACK HH:MM:SS NEXT NEXT MENU MENU Manuafacture Date Current Date EXIT EXIT BACK BACK YYYY/MM/DD YYYY/MM/DD NEXT NEXT MENU MENU ONICON Incorporated 727-447-6140 Page 23 www.onicon.com...

  • Page 24: Commissioning

    The second step is a review of the meter program settings. Both steps must be completed in order to finish the installation. A simple commissioning checklist is shown below. A copy of this may be found online at www.onicon.com/system20.html. Commissioning Checklist Initial Power-up...
  • Page 25 NEXT BACK Text Select Units EDIT NEXT EDIT Flow Multiplier EXIT Set Meter BACK gpm x 1 EXIT NEXT NEXT edits units of BACK measure EDIT NEXT SAVE completes install with current settings SAVE ONICON Incorporated 727-447-6140 Page 25 www.onicon.com...

  • Page 26: Sealing The Meter

    EDIT EDIT Auxiliary Input EXIT Label 2 BACK Counts NEXT EDIT Configure Auxiliary EXIT Input 3 BACK Pulse NEXT EDIT Auxiliary Input EXIT Label 3 BACK Counts NEXT EDIT Initial Security Seal Here ONICON Incorporated 727-447-6140 Page 26 www.onicon.com...

  • Page 27: Changing Rs485 Settings Or Meter Programming After Commissioning

    Briefly pressing commissioning once will allow you to re-enter the commissioning mode. Follow the instructions starting in section 4.1 and re-commission the meter. Once the meter is re-commissioned, install a new tamper seal over the commissioning button opening. ONICON Incorporated 727-447-6140 Page 27 www.onicon.com...

  • Page 28: Diagnostic Functions

    SYSTEM - 20 BTU METER SECTION 5.0 The ONICON System-20 has self diagnostic functions that continually monitor DIAGNOSTIC key operating parameters. A list of the alarm messages is shown below. FUNCTIONS Displayed Description Message System Fault This message indicates a hardware malfunction. The meter will not calculate energy in this state.

  • Page 29: Bacnet® Ms/Tp

    Device Management - UTC Time Synchronization - B (DM-UTC-B) Trending - View and Modify Multiple Values - I - B (T-VMMV-I-B) Standard Object Types Supported: Device Object Binary Value Object Analog Input Object Multi-State Value Analog Value Object Trend Log Multiple ONICON Incorporated 727-447-6140 Page 29 www.onicon.com...

  • Page 30: Device Object

    Device current date Read-only UTC Offset -300 Writable Daylight Savings False Writable Status APDU Time-out 6000 Read-only # of APDU Retries Writable Max Master Read-only Device Address Read-only Active Binding Database Revision 1 Read-only ONICON Incorporated 727-447-6140 Page 30 www.onicon.com...

  • Page 31: Analog Input ( S )

    Event State normal Read-only Reliability No-fault-detected Read-only Out-of-Service FALSE Writable Units Various Read-only Priority Array {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, Read-only NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL} Relinquish Default Read-only ONICON Incorporated 727-447-6140 Page 31 www.onicon.com...

  • Page 32: Binary Value ( S )

    1 = reset total Binary value 10 Aux total 2 reset 1 = reset total Binary value 11 Aux total 3 reset 1 = reset total Binary value 12 Flow direction 1 = reverse flow ONICON Incorporated 727-447-6140 Page 32 www.onicon.com...
  • Page 33 3 = High Supply Temperature 4 = Low Return Temperature 5 = High Return Temperature 6 = Delta T < Minimum 7 = High Energy Rate 9 = Comm error 10 = Low Supply Voltage 11= System Fault ONICON Incorporated 727-447-6140 Page 33 www.onicon.com...

  • Page 34: Multi State Value

    30 seconds to 1 hour via BACnet. The Incremental energy total mode 1 default interval is 15 minutes. Incremental energy total mode 2 Incremental volume total mode 1 Incremental volume total mode 2 Meter status (multi-state object) ONICON Incorporated 727-447-6140 Page 34 www.onicon.com...

  • Page 35: Modbus

    03 - Read Holding Register(s) 04 - Read Input Register(s) 05 - Write Single Coil 06 - Write Single Register 08 - Diagnostic 15 - Write Multiple Coils 16 - Write Multiple Registers 17 - Report Slave ID ONICON Incorporated 727-447-6140 Page 35 www.onicon.com...

  • Page 36: Modbus Memory Map

    Input Register Floating Point Register (2 of 2) 30007 Energy Rate - MW Input Register Floating Point Register (1 of 2) 30008 Energy Rate - MW Input Register Floating Point Register (2 of 2) ONICON Incorporated 727-447-6140 Page 36 www.onicon.com...
  • Page 37 Floating Point Register (1 of 2) 30048 Energy Total - Mode 1 - kBtu Input Register Floating Point Register (2 of 2) 30049 Energy Total - Mode 1 - MBtu Input Register Floating Point Register (1 of 2) ONICON Incorporated 727-447-6140 Page 37 www.onicon.com...
  • Page 38 Previous Year Energy Total - Single Mode - MBtu Input Register Floating Point Register (1 of 2) 30100 Previous Year Energy Total - Single Mode - MBtu Input Register Floating Point Register (2 of 2) ONICON Incorporated 727-447-6140 Page 38 www.onicon.com...
  • Page 39 User Defined Energy Total - Mode 2 - MBtu Input Register Floating Point Register (1 of 2) 30150 User Defined Energy Total - Mode 2 - MBtu Input Register Floating Point Register (2 of 2) ONICON Incorporated 727-447-6140 Page 39 www.onicon.com...
  • Page 40 Year to Date Volume Total - Mode 2 - Liters Input Register Floating Point Register (1 of 2) 30200 Year to Date Volume Total - Mode 2 - Liters Input Register Floating Point Register (2 of 2) ONICON Incorporated 727-447-6140 Page 40 www.onicon.com...
  • Page 41 User Defined Volume Total - Mode 2 - ft3 Input Register Floating Point Register (1 of 2) 30250 User Defined Volume Total - Mode 2 - ft3 Input Register Floating Point Register (2 of 2) ONICON Incorporated 727-447-6140 Page 41 www.onicon.com...
  • Page 42 2 High Supply Temperature 3 Low Return Temperature 4 High Return Temperature 5 Delta T < Minimum 6 High Energy Rate 7 Low Signal Quality 8 Comm Error 9 Low Supply Voltage 10 System Fault ONICON Incorporated 727-447-6140 Page 42 www.onicon.com...

  • Page 43: Diagnostic Function Code

    The only function that will be processed after the mode is entered will be the Restart Communications Option function (function code 8, sub-function 1). ONICON Incorporated 727-447-6140 Page 43 www.onicon.com...
  • Page 44 This count is also available in the System-40’s diagnostic menu page. ONICON Incorporated 727-447-6140 Page 44 www.onicon.com...

  • Page 45: Report Slave Id Function Code

    System-40-XXXXXX; where XXXXXX - serial number of the System-40 The System-40 will report data in decimal or HEX, depending on the control system settings. The data must be converted from decimal/HEX to ASCII in order to form the string. ONICON Incorporated 727-447-6140 Page 45 www.onicon.com...

  • Page 46: French Translation Of All Warning, Caution And Important Notes ( Traductions En Français De Tous Les Avertissements, Mises En Garde Et Remarques Importantes )

    REMARQUE IMPORTANTE Le System-20 peut être installé à l'extérieur dans des espaces protégés à l'abri de la lumière directe du soleil, de la pluie, du grésil ou de la neige. REMARQUE IMPORTANTE Une sélection appropriée du site est essentielle pour garantir la performance de ce compteur...
  • Page 47 NE PAS TROP SERRER L'ÉCROU DE SERRAGE DE LA POSITION. En cas de fuites de liquide, ne pas tenter d'y remédier en serrant encore plus l'écrou. Un joint torique d'étanchéité interne retient le liquide. Veuillez communiquer avec ONICON pour obtenir de l'aide en cas de fuite. AVERTISSEMENT Maintenez un contrôle ferme sur le boîtier de câblage jusqu'à...
  • Page 48 AVERTISSEMENT Débranchez l'alimentation principale avant de continuer AVERTISSEMENT Le System-20 doit être connecté à la terre pour un fonctionnement correctement. Ne pas le faire peut entraîner un fonctionnement erratique ATTENTION Température nominale minimum du câble à connecter aux bornes de câblage, 140F (60C) REMARQUE IMPORTANTE Le System-20 doit être utilisé...
  • Page 49 SYSTEM - 20 BTU METER ONICON 11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax +1 (727) 442-5699 www.onicon.com • sales@onicon.com...

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