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System-30
User Manual
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ONICON System-30 User Manual

SYSTEM-30 BTU MEASUREMENT SYSTEM
LON Version
Installation and Operation Guide
0668-2 / 18337
For Software Version DD3.3S30 or higher.
11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax (727)442-5699
www.onicon.com • sales@onicon.com
05-14
SAFETY INFORMATION
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This meter was calibrated at the factory before shipment.
To ensure correct use of the meter, please read this manual thoroughly.
Regarding This Manual:
• This manual should be passed on to the end user.
• Before use, read this manual thoroughly to comprehend its contents.
• The contents of this manual may be changed without prior notice.
• All rights reserved. No part of this manual may be reproduced in any form without ONICON’s written permission.
• ONICON makes no warranty of any kind with regard to this material, including, but not limited to, implied warranties of merchantability and suitability for a particular purpose.
• All reasonable effort has been made to ensure the accuracy of the contents of this manual. However, if any errors are found, please inform ONICON.
• 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.
Safety Precautions: The following general safety precautions must be observed during all phases of installation, operation, service, and repair of this product. Failure to comply with these precautions or with specic WARNINGS given elsewhere in this manual violates safety standards of design, manufacture, and intended use of the product. ONICON Incorporated assumes no liability for the customer’s failure to comply with these requirements. If this product is used in a manner not specied in this manual, the protection provided by this product may be impaired.
The following symbols are used in this manual:
Messages identied as “Warning” contain information regarding the personal safety of individuals involved in the installation, operation or service of this product.
Messages identied as “Caution” contain information regarding potential damage to the product or other ancillary products.
Messages identied as “Important Note” contain information critical to the proper operation of the product.
WARNING
CAUTION
IMPORTANT NOTE
TABLE OF CONTENTS
1.0 INTRODUCTION .............................................................................................................. 5
1.1 Purpose of this Guide ............................................................................................... 5
1.2 Typical SYSTEM-30 BTU MEASUREMENT SYSTEM ........................................... 5
1.3 Standard Features and Specications ..................................................................... 6
1.4 Working Environment .............................................................................................. 7
1.5 Warranty and Serial Number ................................................................................... 7
2.0 UNPACKING ..................................................................................................................... 8
2.1 Checking That You Have Received Everything ...................................................... 8
3.0 INSTALLATION ................................................................................................................ 9
3.1 Site Selection ............................................................................................................ 9
3.2 Mechanical Installation ......................................................................................... 10
3.2.1 Main Unit Installation .................................................................................. 10
3.2.2 Thermowell Installation .............................................................................. 11
3.2.3 Temperature Sensor Installation ................................................................. 11
3.3 Electrical Installation ............................................................................................. 13
3.3.1 Single Mode vs. Dual Mode Operation ....................................................... 13
3.3.2 Electrical Wiring .......................................................................................... 16
4.0 START UP & COMMISSIONING ..................................................................................... 17
4.1 Display and User Interface ....................................................................................... 17
4.2 Processor Start Up ................................................................................................... 17
4.3 Units and Multipliers ............................................................................................... 18
4.4 LonWorks Network Addressing ............................................................................... 19
4.4.1 LonWorks Network Addressing ................................................................... 19
4.5 Commissioning the System-30-LON ....................................................................... 19
4.5.1 Service Pin LED States ................................................................................... 19
4.6 LonWorks XIF Files ................................................................................................. 19
4.6.1 Output Network Variables ........................................................................... 19
4.6.2 Integer Format Output Network Variables .................................................. 20
4.6.3 Input Network Varables ............................................................................... 21
4.6.4 Node Object Network Variables ................................................................... 21
4.6.4.1 nviRequest ...................................................................................... 21
4.6.4.2 nvoStatus ........................................................................................ 22
4.6.5 Resetting Totals Via the Network ................................................................. 22
4.6.6 Rollover of Totals.......................................................................................... 23
4.7 Diagnostics ............................................................................................................. 24
4.7.1 Diagnostic Lights .......................................................................................... 24
4.8 Commissioning ........................................................................................................ 25
4.8.1 Commissioning Worksheet .......................................................................... 26
APPENDIX A – DRAWINGS
A-1 TYPICAL SYSTEM INSTALLATION
A-2/A-3 THERMOWELL INSTALLATION
A-4 WIRING DIAGRAM AND SIGNAL CONNECTION BOARD
A-5 WIRING DIAGRAM FOR DIN CONNECTOR
A-6 LON BOARD
A-7 LONWORKS TWISTED PAIR NETWORK TERMINATION
A-8/A-9 INTEGER FORMAT OUTPUT NETWORK VARIABLES
A-10 CONDITIONS OF SALE
SECTION 1.0: INTRODUCTION
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SYSTEM-30 BTU MEASUREMENT SYSTEM WITH INTEGRAL
FLOW METER & TEMPERATURE SENSORS
INCORPORATED
WARNING
Only qualied service personnel should attempt to install or service this equipment. Serious injury may result from the improper installation or use of this equipment.
1.1 PURPOSE OF THIS GUIDE
The purpose of this guide is to provide installation and commissioning procedures and basic operating and servicing instructions for the ONICON SYSTEM-30 BTU MEASUREMENT SYSTEM.
1.2 TYPICAL SYSTEM-30 BTU MEASUREMENT SYSTEM
ONICON’S System-30 is a true heat (Btu) computer, which accepts data from several sensors, performs a series of computations with that data, and transmits the results as an indication of the amount of heat (Btu’s) being transferred or as a totalized amount.
Y Strainer Upstream
Of Flow Meter
CHILLED WATER
RETURN
BYPASS VALVE Normally Closed
DIAGNOSTIC
20"
LED’S
ISOLATION VALVE
FLOW
5"
ISOLATION VALVE
Normally Open
CHILLED WATER
SUPPLY
Normally Open
RETURN TEMP
CONTROL SYSTEM
CONTROL SYSTEM
LonTalk
BACnet MS/TP
NETWORK
NETWORK
24V AC/DC
24 VAC POWER
FAN COIL UNIT
OR
AIR HANDLING UNIT
1.3 STANDARD FEATURES AND SPECIFICATIONS
• Single mode Btu calculations, in either the heating or cooling mode, are totalized and reported.
• Two-pipe dual mode Btu calculations in both the heating mode and the cooling mode are totalized and reported separately.
• Auxiliary pulse input for totalizing pulse outputs from external devices such as water or gas meters.
GENERAL SPECIFICATIONS
CALIBRATION
Flow sensor and temperature sensors are individually calibrated, followed by a complete system calibration. Field commissioning is also available.
ACCURACY
Differential temperature accuracy ±0.15° F over calibrated range Computing non-linearity within ±0.05% Flow sensor accuracy: ±0.5% OF READING at calibrated velocity ±1% OF READING from 3 to 30 ft/s (10:1 range) ±2% OF READING from 0.4 to 20 ft/s (50:1 range)
TEMPERATURE SENSORS
Solid state sensors are custom calibrated using N.I.S.T. traceable temperature standards.
PROGRAMMING
Factory programmed for each specic application
MEMORY
Nonvolatile EEPROM memory retains all program parameters and totalized values in the event of power loss.
OUTPUT SIGNALS
Isolated solid state dry contacts for mode 1 and mode 2 energy total Contact rating: 100 mA, 50VDC maximum Contact duration: 0.5, 1, 2 or 6 sec selectable
NETWORK INTERFACE
LonTalk 2-wire TP/FT-10F transceiver
OUTPUT SIGNALS LONWORKS® Output Points: (TP/FT-10F)
Variable Description Units SNVT Name
Energy Total Btu SNVT_btu_f Energy Rate Watts SNVT_power_f Flow Rate Liters/Sec SNVT_ow_f Supply Temperature °C SNVT_temp_f Return Temperature °C SNVT_temp_f Flow Total Liters SNVT_vol_f Auxiliary Input No Units SNVT_count_f
BAUD RATE
78 kbps
INPUT SIGNALS
One isolated auxiliary pulse input for totalization
(Factory congurable for active pulse, open collector
sinking, open collector sourcing or dry contact pulses) 3 – 24V dc 50Hz maximum frequency 10msec minimum pulse duration
OPTIONAL LOCAL DISPLAY
Alphanumeric backlit LCD displays total energy, total, flow, energy rate, flow rate, supply temperature and return temperature
Alpha: 16 characters, 0.2” high Numeric: 6 digit, 0.4” high
MAINTENANCE
ONICON recommends periodic inspection and recalibration.
No other periodic maintenance is required.
TEMPERATURE RANGE
Liquid temperature range: 32° to 200°F Ambient temperature range: 40° to 120°F
MECHANICAL
OVERALL DIMENSION:
9.25” L x 5” W x 6.5” H TEMPERATURE THERMOWELL: Brass thermowell (½” sweat or ¼” NPT)
ELECTRICAL
This equipment is intended for INSTALLATION CATEGORY (OVERVOLTAGE CATEGORY) II applications INPUT VOLTAGE: 24 V ±10% AC 50/60 Hz or 24 V ±4 DC INPUT CURRENT: 200 mA maximum
TERMINALS CONNECTIONS: Use 18-22 ga. Copper wire. Do
not exceed 4.5 in-lb (0.5 Nm) of torque when tightening. WIRING: CONDUIT: Use PVC jacketed copper cable with a wire Gauge
suitable for the length of run and required maximum current
carrying capacity. The installation must comply with all
local, state and federal codes. PLENUM AREA: (without conduit) Use plenum rated
copper cable with a wire gauge suitable for the length of
run and required maximum current carrying capacity. The
installation must comply with all local, state and federal
building codes.
Note: Specications are subject to change without notice.
1.4 WORKING ENVIRONMENT
The SYSTEM-30 was designed for installation and use in typical commercial and residential environments that are free of corrosive liquids and fumes, direct liquid exposure, heavy condensation, and temperature extremes and vibrations.
The operating ambient air temperature range is 40° F to 120° F.
The electrical power should be relatively clean, free of high frequency noise, large voltage transients, and protected from power surges and brown outs.
1.5 WARRANTY & SERIAL NUMBER
Warranty
ONICON’s 2-year “No-fault” warranty reduces start-up costs with extended coverage that includes coverage for incidental damage during installation. Certain exclusions apply. See our complete warranty statement for details.
Serial Number
The serial number of your SYSTEM-30 is located on the side of the enclosure. Serial numbers are unique identiers that you should have available when contacting the factory for assistance regarding your system.
SECTION 2.0: UNPACKING
Each SYSTEM-30 generally ships in one package. Inspect all packages immediately upon receipt. Notify ONICON and the freight carrier if the shipment arrives with evidence of damage in transit.
2.1 CHECKING THAT YOU HAVE RECEIVED EVERYTHING
Standard Documentation
Enclosed with each SYSTEM-30 is a comprehensive documentation package that includes the following items:
The SYSTEM-30 BTU MEASUREMENT SYSTEM Installation and Operation Guide The System-30 Calibration Data Sheet
Please notify ONICON immediately if any items are missing.
The Main Unit
Remove the System-30 from the shipping carton and inspect it for physical damage.
Temperature Sensors
One temperature sensor is built-in to the body of the meter and the other is connected to the main unit via a permanently attached cable. Inspect the free sensor and cable for external damage.
Temperature Thermowell
A standard thermowell with installation hardware is packed with the main unit.
Mounting Hardware
The System-30 is supplied with two process connections to facilitate connection to the piping system. A union with retaining nut makes up one end of each end piece. The other end will either be a sweat tting for copper or a threaded nipple with male NPT threads.
SECTION 3.0: INSTALLATION
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The SYSTEM-30 BTU MEASUREMENT SYSTEM should be installed by experienced plumbers and others with related knowledge and experience in the heating, cooling, and uid metering elds. ONICON will be happy to assist with technical recommendations and to provide guidance by telephone and/or mail. On-site eld engineering, installation, and/or service is also available at an additional cost.
The installer should use good trade practices and adhere to all state and local building or other applicable codes.
CAUTION
ONICON strongly recommends the use of a valved bypass and strainer in conjunction with the installation of the System-30 to facilitate servicing and to protect the turbine assembly during start-up.
3.1 SITE SELECTION
Careful attention to the site selection for the system components will help the installers with the initial installation, reduce start-up problems, and make future maintenance easier. For example, do not install the System-30 or its temperature sensor where it will be difcult for personnel to perform periodic maintenance and calibration. When selecting a site for mounting the system components, consider the criteria under Section 1.4, WORKING ENVIRONMENT, as well as the following:
The Main Unit
Choose the location (supply or return) with the longest straight, unobstructed run. Ideally, the location chosen should allow for at least 20 diameters of unobstructed straight run upstream of the meter and at least 5 diameters of unobstructed straight run downstream. If both the supply and return have adequate straight run conditions, locate the meter in the supply.
The location must be accessible to facilitate service and recalibration.
The Temperature Sensor
The remote temperature sensor should be located in an accessible location. This will facilitate any on-site service.
Place the temperature sensor away from sources of electrical noise that might interfere with the temperature sensor signal.
3.2 MECHANICAL INSTALLATION
SYSTEM-30 BTU MEASUREMENT SYSTEM WITH INTEGRAL
FLOW METER & TEMPERATURE SENSORS
INCORPORATED
!
3.2.1 Main Unit Installation
BYPASS VALVE Normally Closed
DIAGNOSTIC
LED’S
Y Strainer Upstream
Of Flow Meter
CHILLED WATER
RETURN
ISOLATION VALVE
CHILLED WATER
SUPPLY
Normally Open
FLOW
20"
ISOLATION VALVE
Normally Open
5"
RETURN TEMP
Installing the meter body
1. Make sure the unions are free of nicks or scratches on either end of the ow meter body and on the process connections.
2. Spray the union faces with a silicone spray or apply a thin coat of beeswax to enhance seating. Do not use paste thread sealant on union faces.
3. Orient the ow arrow on the meter with the direction of ow.
4. Recommended torques for union seal: 70 ft/lbs minimum
5. Make sure alignment of pipe does not put lateral stress on either joint.
CONTROL SYSTEM
CONTROL SYSTEM
LonTalk
BACnet MS/TP
NETWORK
NETWORK
24 VAC POWER
24V AC/DC
FAN COIL UNIT
OR
AIR HANDLING UNIT
Process
Connection
Unions
Process
Connection
CAUTION
Before you attempt to use the BTU measurement system, isolate the main unit, open the bypass and ush the entire system so that it is free of ux, solder, pipe and tube cuttings and any other free moving particles.
3.2.2 Thermowell Installation
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IMPORTANT NOTE
It is important that no dirt or other foreign material be allowed into the thermowell as this could affect the thermal response of the system.
Standard Thermowell
The most common installation methods are shown below. Consult the factory for special applications.
3.2.3 Temperature Sensor Installation
The temperature sensor is factory matched and permanently attached to the BTU MEASUREMENT SYSTEM. Sensors from different Btu meters cannot be used without being returned to the factory for recalibration.
Apply a thin coat of thermally conductive grease to the temperature sensor, and gently insert the temperature sensor all the way into the thermowell until it contacts the bottom of the cavity. Gently tighten the retainer cap. DO NOT OVER TIGHTEN. The thermowell completely seals the plumbing system without the retainer cap. The only purpose of the cap is to keep the sensor from losing contact with the bottom of the thermowell cavity.
CAUTION
Cable length is specied at time of order. This is three wire shielded plenum rated cable. Altering the cable length will affect calibration. Do not change the cable length without consulting ONICON.
THERMOWELL INSTALLATION IN THREADED PIPE TEES
THERMOWELL INSTALLATION IN COPPER TEE
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