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1. aL es e ES e er a IL FEE S 5 ie eve 17 Peg AA EE Ta Am m EPEETAN ju dom A a ee ee Ek te bt AURA Ba mieno HVAC Variable Speed Drives FILE NO 6 2 DATE August 2010 SUPERSEDES 5 2 DATE February 2010 Meeting your Sustainability Objectives for New and Existing Buildings Y O N Y Y Le O N N N 2 Sustainable Building Challenges Energy Performance Certificate Non Domestic Building Sustainable buildings whether new or existing are a higher priority than ever before Typical Commercial idang ET POTTER TE eae f i PE Energy Performance Certificate The need for better energy performance in buildings is driven not only by individual concerns for the environment but also by increasing legislative pressures such as This certticate shows the energy rating of tha buiding H ndcates the energy aticiency of l l l the bu dmg fabric and the aes vemitaton Sane prod nen borro be Part L of the building regulations and the EU Energy Performance of Buildings ate for exating bulge There more adince on how to in Directive The challenges that face building services professionals include the need to achieve good EPC Energy Performance Certificate and BREEAM ratings while designing heating and cooling systems that meet occupancy comfort needs The Implications of Poorly Performing Buildings Designing and operating buildings using pra
2. adjusted in response to changes in demand This in turn leads to significant energy savings improved occupancy comfort better plant control and reduced maintenance Armstrong has many years of experience in the area of variable speed pumping and offers significant added value to designers installers and end users through product solutions such as the award winning IVS Sensorless range of integrated variable speed pumps Armstrong IVS102 variable speed drives can be used with all centrifugal pump types fitted with motors to 450kW in either new or existing heating and cooling applications IVS 102 Series Variable Speed Drives Dedicated HVAC variable speed drives designed to reduce system complexity and capital cost in both new and existing heating and cooling systems gt Capital and Installation Cost Reduced gt Reduced capital cost in built features reduce the need for ancillary components gt Reduced installation cost features such as the in built mains isolator option and flow compensation reduce wiring and time on site gt Reduced commissioning cost intuitive interface and menu structure makes setup easy gt Reduced plant room space cost compact size and IP55 enclosure availability means the IVS102 can be installed in the smallest of plant rooms gt Increased Energy Savings gt IVS102 has a basic energy efficiency of 98 gt Paybacks lower than 12 months are possible in retrofit applications gt Aut
3. Outputs gt Programmable relay outputs 2 240 VAC 2A and 400 VAC 2A Used for alarm and drive pump status communications gt Analogue Output gt Programmable analogue output 1 Current range 0 4 20mA Can be used to indicate operating status such as power current or motor speed gt Analogue Inputs gt Analogue inputs 2 gt Modes Voltage or current gt Voltage Level 10 to 10V scalable gt Current Level 0 4 to 20mA scalable Used for feedback signals from field sensors or speed reference from BMS Options and Accessories gt Power Options Advanced Harmonic Filters For critical demands on harmonic distribution dv dt Filters For special demands on motor insulation protection Sine Filters LC Filters For noiseless motor In built Mains Isolator Reduces requirement for external equipment and saves installation time and cost vvvv gt Control Options Relay Option Card Adds 3 additional relay outputs These can be used for alarms warnings drive status hand auto or a number of other programmable functions gt General Purpose I O Option Card Adds 3 digital inputs 2 digital outputs 1 analogue current output 2 analogue voltage inputs gt Analogue I O Option Card Adds 3 analogue outputs and 3 Ce pt1000 Ni1000 inputs qn External 24 VDC Supply Option A 24 VDC external supply can be connected to supply control and option cards in the event of a drive
4. aid in compliance with the Electricity Council s Engineering Recommendation G5 4 Stage 2 and to reduce the DC link ripple current The product shall be CE marked showing compliance with both the EMC Directive 89 336 EEC and the Low Voltage Directive 72 23 EEC RFI filters shall be fitted as standard to ensure the VSD meets the emission and immunity requirements of EN61800 3 VSD and motor protection shall include motor phase to phase fault motor phase to earth fault loss of supply phase over voltage under voltage motor over temperature inverter overload and over current The VSDs shall be available in IP20 21 enclosures for incorporation into control panels or IP55 for plant room wall mounting Output frequency range shall be adjustable between O 120Hz The VSD shall be capable of riding through a control power loss of up to 300ms to eliminate nuisance tripping and shall include auto ramping feature for automatic adjustment of the acceleration and deceleration ramp times to help prevent nuisance trips The VSD shall provide PID three term control for closed loop control of pressure or flow without the need of an external regulator The VSD shall provide Programmable Skip Frequencies with adjustable bandwidths to help overcome any mechanical resonances The motor circuit shall be capable of unlimited switching by either a contactor or an isolator without causing damage to the VSD The VSD shall feature an on board time clock The VSD shall pr
5. ated with AC line reactors gt EMI RFI Control All IVS102 drives are designed to contain and control EMI and RFI to EN 61800 3 with additional filtering options available for even the most sensitive installations Dedicated Features for Energy Conservation in HVAC Systems gt Automatic Energy Optimisation AEO continuously monitors the pump motor speed and load and adjusts the applied voltage to maximise energy savings Even at full speed voltage will be reduced if the load is less than 100 This feature automatically compensates for oversized motors or systems that are not fully loaded gt Energy Monitoring The IVS102 drive provides a complete range of energy consumption information Users can choose to divide absolute energy consumption into hours days or weeks and can choose to monitor a load protile tor the application gt Flow Compensation 150 200 198 mm Many variable flow variable speed pumping systems are installed with a differential pressure DP sensor mount ed close to the pump such that when demand for heat ing and cooling changes the pump can adjust speed accordingly With many variable speed drive designs this would result in full pump design head being maintained at all flows The ideal system design is to monitor the pressure further out in the system as this allows for a reduction in pump head with reducing flow and subse quently results in significantly greater energy savings Flow compensation
6. ctices and technologies of the past will have major implications for your business regardless of whether you are a system designer contractor end user or any other profession involved with building services mont 6 RO sar o emote systems Poorly designed and inefficient buildings lead not only to higher utility bills ad ao topos but also to dissatistied occupants and high maintenance costs Low building energy ratings will likely impact the sale or rentable value of the building For organisations with highly visible CSR Corporate Social Responsibility programs low energy ratings can also have a negative impact on brand image and customer retention and acquisition Improved Performance in Heating and Cooling Systems Traditional heating and cooling systems were designed such that at part load conditions where heating or cooling demand is reduced control valves would divert the flow of water around the heating or cooling load leaving the system pump to continue producing full design flow even though the system didn t require it This design incorporating constant speed pumps results in significant energy wastage Life cycle cost analysis identifies that typically 95 of the lifetime cost of a pump is energy cost which makes a clear case for investing in a more efficient pump design In recent years the reduced cost and improved reliability of variable speed drives VSD has led to changes in design approach where the pump speed is
7. g gt Running gt Alarm gt Standby Our policy is one of continuous improvement We reserve the right to alter our dimensions and specifications without notice Armstrong Integrated Limited S A Armstrong Limited AR MSTRONG Wenlock Way 23 Bertrand Avenue Manchester Toronto Ontario United Kingdom M12 5JL Canada M1L 2P3 T 44 0 8444 145 145 T 001 416 755 2991 F 44 0 8444 145 146 F 001 416 759 9101 For Armstrong locations worldwide please visit www armstrongintegrated com
8. is a setting in the IVS102 software that allows the system sensor to be located close to the pump without compromising on potential energy savings When this parameter is set in the software the IVS 102 factors this into calculations and adjusts the flow set tings according to a Control Curve as would be the case with a remotely installed sensor Water sge 1 00 Flow Ips System Control Curve using Flow Compensation gt Multi zone Control Larger heating and cooling systems with diverse loads in multiple zones pertorm better when multiple DP sensors are installed at strategic locations in the system This design approach allows the variable speed pumps to better satisfy the needs of the whole system whilst at the same time optimising energy savings When fitted with an I O expansion module the Armstrong IVS102 has the capacity to handle three feedback signals each with their own set point This removes the need for external controls and results in significantly reduced installation costs For systems requiring control of more than three zones an Armstrong IPS Controller can be used in conjunction with IVS102 drives gt Duty Standby Operation Where two IVS102 drives are installed in a duty standby pump application it is possible to interconnect the drives to provide automatic changeover in the event of duty pump failure The interconnected drives will alternate the system load between the two pumps at pre set intervals to eve
9. movable during operation gt IP65 Rating gt Easy access to all parameters gt On board memory allows upload from one drive and download to another gt On board Manual gt Info key provides access to help information with gt Illumination on board user manual gt Important buttons are illuminated when active Y E O N Y Y de O N 9 N N 2 Technical Information gt Building Management System Connectivity The IVS102 variable speed drive offers unrivalled communi cation capabilities that reduce or eliminate the need for external devices The drives communicate seamlessly on a serial communications network via a simple two wire con nection The drive can be programmed either through the network or through the drive keypad gt Standard Protocols gt Modbus RTU gt Johnson Controls Metasys N2 gt Siemens Apogee FLN gt Optional Protocols LonWorks BACnet DeviceNet Profibus Modbus TCP vVvvvvv gt Environmental Temperature O 45 C gt Maximum Relative Humidity 95 gt Enclosure Ratings IP20 1 1 90kW IP21 1 1 1400kW IP54 110 1400kW IP55 1 1 90kW IP66 1 1 90kW vvvvv IVS102 Variable speed drive in IP55 enclosure gt Inputs Outputs gt Programmable digital inputs 6 Used for external signals such as start stop or interlocks Two of the six ports can be re programmed to serve as digital outputs gt Relay
10. n out pump wear The drives can also send pump failure alarms to the BMS This again reduces the need for external controls and reduces capital and installation costs gt Pump Protection The IVS102 is supplied with many standard pump protection features including preventative maintenance scheduling such as mechanical seal replacement Other features include dry pump and end of curve protection both of which help to prevent pump damage and improve pump longevity gt Easy to Use Graphical Keypad All IVS102 drives are supplied with intuitive and easy to use interface The keypad is used for changing parameters fault finding and diagnostics and monitoring operating variables such as power consumption Alarms and warnings are displayed in easy to understand terminology eliminating the need for decoding or referring to tables in manuals gt User Friendly Display gt Back lit display Flexible Easy Menu Structure gt On screen scroll bars and graphs Intuitive navigation gt International letters and signs Four independent setups for gt Four meters can be displayed unmatched flexibility simultaneously gt Multiple menus including a personalised quick setup menu gt Logging menu provides access _ to operation history gt Iwo level password protection S Quick Main Alarm gt Changes Made log identifies satus J Menus Menu log previously modified parameters gt User Friendly Keypad S ot gt Re
11. omatic Energy Optimisation function accurately tunes the drive to the pump Flow compensation eliminates the energy loss caused by an incorrectly placed sensor Project Risk Minimisation High quality product with EMC filtering and in built harmonic mitigation Units are easily matched to the pump reducing commissioning delays Single source responsibility for complete variable speed pumping unit Easily connects to Building Management Systems BMS vvvv Ease of Maintenance gt All components are accessible from the front of the drive gt Modular design makes replacing sub assemblies easy gt Removable terminal blocks makes disconnecting cables simple Extended Drive Lifetime The unique cooling system prevents dusty and aggressive ambient airflow trom dam aging the electronics Terminal blocks unplug easily should you need to disconnect control cables Y O N Y Y Le O N N N 2 The Intelligent Solution for Variable Speed Pumping with High Level Features as Standard gt Modular Design Modularity of design allows the Armstrong IVS102 to work seamlessly with most HVAC systems Plug and play expansion options provide for simple upgrades to meet current and future requirements gt Harmonics Control All Armstrong IVS102 drives have dual DC link reactors which provide a reduction in input harmonics equal to a 5 AC line reactor without the voltage drop and efficiency losses associ
12. ovide an Automatic Energy Optimiser AEO function to maximise energy savings by automatically matching the U F curve to the load requirements increasing energy efficiency by 5 15 at partial loads An Automatic Motor Adaption func tion shall match the VSD with the associated motor installation to optimise performance This feature shall operate without spin ning the motor and without the need to decouple it from it s load The VSD shall provide set point Flow compensation If a pres sure sensor is mounted close to the pump this feature shall constantly adjust the reference to follow the system curve A com plete range of energy monitoring information shall be provided to divide absolute energy consumption into hours days or weeks or to monitor a load profile for the application kWh s shall be displayed as standard on the alphanumeric keypad The VSD shall provide dry pump and end of curve protection to prevent the pump from operating without creating the desired pressure Under these circumstances the drive shall stop the pump or perform another programmed action i e raise an alarm The VSD shall incorporate the following 1 0 gt Six programmable digital inputs gt Two programmable 0 10v DC 0 4 20mA analogue inputs gt One programmable 0 4 20mA analogue outputs for remote monitoring of gt Motor current gt Motor power gt Output frequency gt Two programmable volt tree relays for remote monitoring of VSD status includin
13. power supply failure Battery Backup Card Provides power for the real time clock during power loss gt Other Armstrong Variable Speed Pumping Solutions gt IVS Sensorless Series Pumps Armstrong offers a range of variable speed pumps with integral drives for motors up to 55kW This type of solution offers a unique Many option cards simply plug into slots under value proposition in variable speed pump solutions The Sensorless the drive keypad control functionality allows pressure control in heating or chilled water systems without the need to install a DP sensor anywhere in the system Armstrong IVS Sensorless pumps offer the best space utilisation and the lowest installed cost of any variable speed solution available gt Multi pump Multi zone Controls For systems requiring greater than 3 zone control the Armstrong range of IPS controllers can be used in conjunction with the IVS102 drives to provide sequencing of up to 6 pumps and 18 remote system zones Series 4300 IVS Series 4302 IVS dualARM IPS 5000 IPS 9000 Typical Specification Provide Armstrong IVS102 Series variable speed drive VSD with specification as per the following The VSD shall be of the VVC PWM type providing near unity displacement power factor cos phi without the need for external power factor correction capacitors at all loads and speeds The VSD shall incorporate DC link chokes for the reduction of mains borne harmonic currents to

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