Scroll compressor soft starter series RSBS,Scroll compressor RSBD soft starter & seriesRSBT Where does the need for scroll compressor soft starters come from? Scroll compressors have earned a strong reputation in HVAC applications by proving to be a more reliable and efficient solution than other categories of compressors. Scroll compressors are generally 10 to 15% more efficient than piston compressors. Worldwide initiatives promoting energy efficiency in the building sector are generating a growing interest for more cost saving and efficient HVAC solutions, making the use of scroll compressors more and more a necessity. A complete range of scroll compressor soft starters Scroll compressor high starting currents Benefits of soft starting solutions Starting scroll compressors via direct on line (DOL) methods Carlo Gavazzi’s line of dedicated scroll compressor soft results in a high inrush current typically 6 to 8 times the rated starters RSBS, RSBD and RSBT is the result of an extensive compressor current. study of scroll compressor systems together with a continuous communication with our customers. Such levels of current inevitably cause a number of undesirable effects including: RSBS, RSBD and RSBT soft starters are equipped with specific algorithms to reduce the high starting currents thereby • Light flickering resulting in: • Triggering of protection equipment • Elimination of light flickering • Increased compressor noise and vibration • Reduction in voltage disturbances • Excessive stresses on compressor • Increased compressor lifetime • Voltage fluctuations and disturbances on neighboring equipment Additionally, by limiting starting current to more than 50%* with respect to DOL start, additional benefits can be achieved such as: • Lower-rating protection devices and cabling • Less expensive contracts with utility companies * Typical for RSBS, RSBT 2 CARLO GAVAZZI Automation Components. Specifications are subject to change without notice. Illustrations are for example only. Applications It is estimated that around 40% of energy systems are contributing to range of softstarting solutions electrical energy is consumed in innovative designs for more energy- specifically designed for scroll buildings mainly for heating, ventilation saving products and technologies both compressor applications so as to and air conditioning systems. Initiatives in the residential and the industrial reduce such negative effects whilst aimed at reducing CO2 emissions by sectors. prolonging the system lifetime. using more efficient and renewable Carlo Gavazzi offers a comprehensive Heat pumps Benefits: • Patented algorithm optimised for scroll compressors • No external settings required • Unmatched inrush current reduction • Compact design • Compliance to residential (Class B) EMC requirements for RSBS and RSBT series (up to 15 kW) Chillers Benefits: • Typical inrush current reduction vs direct on line >50% • Reduction in system vibrations • Longer compressor lifetime • Tamper proof design with no external settings • Optimised control through serial communication Roof tops Benefits: • Auto-adaptive algorithm ensures that starting parameters are automatically adjusted to optimize inrush current reduction • Integrated diagnostic functions for increased system protection and reduced downtime • Operating temperature range: -20ºC to +60ºC (-4ºF to +140ºF) • Optimised algorithm for multi-compressor systems CARLO GAVAZZI Automation Components. Specifications are subject to change without notice. Illustrations are for example only. 3 RSBS,Scroll compressor RSBD soft starter & seriesRSBT RSBS compact single phase compressor soft starter RSBS is single phase soft starter that current limits during start so as not to (residential) limits for conducted and reduces the scroll compressor starting disturb the electrical network and/or radiated emissions which ensures current to 45A AC limiting the peak neighboring equipment. that neighbouring equipment is not energy demand and reducing voltage RSBS has a dedicated algorithm and negatively affected by any interference disturbances as well as light flickering. inbuilt current limit settings specifically generated by the softstarter switching. RSBS provides a one-package solution for scroll compressor starting. To limit RSBS HP provides a dynamic current for compressor softstarting and the peak energy demand resulting in limit that ensures compressor starting starting capacitor control. Driven by expensive utility contracts by the end- even at higher starting pressures local utility regulations, single phase users. with a maximum current limit of 80 heat pumps need to respect specific RSBS complies with Class B AACrms. RSBS Single phase soft starters up to 32A AC Features Benefits • Current limiting strategy • Reduces light flickering and voltage • No user setting required disturbance • Integrated diagnostic functions • Tamper-proof design • High pressure (HP) algorithm • Quicker diagnosis of problems in the • Conforms to Class B limits for EMC heat pump • Alarm relay output • Algorithm self-adjust the maximum starting current in case of high pressure starts • No need for additional EMC filters • Easier fault diagnostics Dedicated soft starting solutions for 3-phase scroll compressors The RSBD and RSBT range of three optimize the starting performance of Panel space saving is also enhanced phase soft starters is specifically the scroll compressor. through the incorporation of a number designed and optimized for RSBD and RSBT compact series is of diagnostic functions designed three phase scroll compressors fitted in a “contactor-like” housing to protect your system in abnormal incorporating a patented, auto- of just 45 mm width to facilitate conditions. adaptive algorithm that continuously installation and replacement of measures system parameters to existing components. RSBD 2-phase controlled soft starters up to 95A AC Features Benefits • No user settings required • The most easy to use soft starter • Self-learning algorithm for start • Reduces compressor start current by current reduction an average of 40% vs Direct on line • Current balancing strategy • Ensures compressor starts with lowest • 45A in 45mm wide housing current within less than 1 second • 95A in 75mm wide housing • Easy replacement of existing • Internally bypassed solution mechanical contactors • Integrated diagnostic functions • Less heat dissipation inside the • HP algorithm for multi-compressor electrical panel systems • Increased protection for scroll • Two (RSBD 45mm) or 3 (RSBD compressor 75mm) auxiliary relay outputs • HP algorithm ensures that compressor starts even at high pressure difference • Increases installation flexibility 4 CARLO GAVAZZI Automation Components. Specifications are subject to change without notice. Illustrations are for example only. RSBT 3-phase controlled soft starters up to 95A AC Features Benefits • Patented self-learning algorithm for • >50% Start current reduction vs compressor start current reduction Direct on Line • No user settings required • Reduces heavily any light flickering • Compliance with EMC class B • Less vibrations in the pipes and joints (residential) limits • Meets the most demanding limits • Internally bypassed solution for emissions – hence no need for • Up to 32Arms in 45mm wide housing additional filters • User-friendly alarm indication • Easier fault-finding in case of • Serial communication (RS485) abnormal conditions • HP algorithm for multi-compressor • Communication with machine systems controller for energy consumption, • Additional plug-in modules available soft start status, ON/OFF control and alarms • Installation flexibility with different configurations Modularity The RSBT compact installation flexibility For those systems where EMC emissions Furthermore, through the can be enhanced through the additional need to be reduced further we also interconnecting clip (RTPM) further time- accessories such as the RFPM and provide an optional plug-in filter (RFILT) saving for the connection to manual RSPM auxiliary relay modules. than be mounted directly on top of motor starters is achieved. RSBT to further reduce the EMC noise. RFILT * RFPM ** RSPM ** Plug-in EMC filter Plug-in alarm relay output Side-mount alarm relay output • Noise attenuation: 5 dB • Changeover (NO, NC) contact • Version V110: Transistor output • Operational current: up to 32Arms • Ordering code: RFPMV00 • Version V120: Transistor and relay output • Ordering code: RFILT4032V00 • Ordering code: RSMPV120, RSPMV110 RTPM * RFCG *** Interconnectring clip for manual motor starters Finger guards • No additional tools required • Provide increased protection for maintenance personnel • Facilitates connection to manual motor starters • Ordering Code: RFCGX6 • Ordering code: RTPMGMS32SL, RTPMGMS32HL * Applies to RSBD and RSBT compact models ** Applies to RSBT compact models only *** Applies to RSBD 75mm and RSBT 120mm models only CARLO GAVAZZI Automation Components. Specifications are subject to change without notice. Illustrations are for example only. 5 RSBS,Scroll compressor RSBD soft starter & seriesRSBT Patented auto-adaptive function to reduce starting current Through the auto-adaptive function, the RSBD and RSBT measures relevant data and modifies the starting parameters achieve a considerable inrush current reduction without the to ensure a consistent inrush current reduction. need to adjust any settings. During every start the algorithm RSBD & RSBT inrush current reduction Starting Current (Amps) 700 RSBD RSBT 600