Single Phase Soft Starters Specification Catalog
Single Phase Soft Starters Table of Contents Introduction............................................................................. 4 SureStart ................................................................................ 4 Background ............................................................................. 5 In-Rush Current......................................................................... 5 Measuring In-Rush ......................................................................
Introduction The SureStart Series soft-starter was the first of its kind invented by Hyper Engineering over a decade ago in Wollongong, Australia. It was originally invented for use in the residential heating, ventilation, and airconditioning (HVAC) industry in Australia and Europe. In recent years, Hyper has expanded SureStart technology into commercial HVAC by offering 3 phase versions in commercial voltages.
Single Phase Soft Starters In-Rush Current Motor in-rush occurs due to low resistance in motor windings essentially acting like a short circuit. This temporary short circuit causes an immediate spike in current and simultaneous drop in supply Voltage. Voltage drops for air conditioning compressors are often 15% or more which is 3-4 times greater than what most electrical power distributors prefer. The more frequently the compressor starts, the more noticeable the problem becomes.
Hard Start kits vs. SureStart Before Off-the-shelf products, such as a hard start kit, are available for service technicians to install on an air conditioner to solve the light flicker problem. It is relatively low cost and simple to install to attempt to satisfy the homeowner complaints. As previously mentioned, hard start kits are a simple device that is used to provide a boost to the compressor to start it faster.
Single Phase Soft Starters The SureStart Difference HVAC/R The term “softstart” is used generically when referring to devices such as SureStart. It is worthwhile to note that SureStart is not a “hard start” device. As the name implies, it is a SureStartTM which ensures the compressors starts optimally every time by not delivering too much nor too little torque. SureStart applies power electronics combined with intelligent software to provide optimal mechanical advantage during motor starting.
Increasing Utility Regulation Most of the problems discussed so far relate specifically to the homeowner. However, power distribution companies experience issues when it comes to inrush current. Depending on whether the utility is dealing with an existing network or working on plans for a network expansion, additional investment and operational costs could be required.
Single Phase Soft Starters Generator Sizing Methods Power (kW) Rating Method If SureStart is used in systems which are powered through an inverter setup fed from alternate renewable energy sources like photovoltaic cells or generators, a new installation will easily benefit from lower demands on inrush requirements through lower inverter and solar panel sizing. Depending on kW rating of the installation, this could easily lead to potential savings higher than cost of the SureStart device itself.
SureStart Operation Led Flash Codes When the system control calls for compressor operation, the compressor contactor will energize. If the supply voltage to the SureStart is less than “Minimum Startup Voltage”, a 50 second delay is initiated. At the end of the delay, another attempt to start the compressor will begin unless the supply voltage remains unchanged.
Single Phase Soft Starters Flash Code (Slow Flash (1 / 3 secs): Lockout on Over current) - Displayed for “Overcurrent” in running mode of the compressor motor. Overcurrent limit is “25A for 08-16A version” and “50A for 16-32A rated version”. Also displayed, if internal Klixon of the compressor trips out on overheat. Re-start is attempted after 10 minutes.
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Single Phase Soft Starters Model Nomenclature 1 2 3 4 5-9 10 11 S S 0 B 12-20 S N Auxiliary Alarm Relay N – None Type S – SureStart Standard S – Standard Contactor Function P – Primary1 S – Secondary2 Full Load Amps (FLA) (Corresponds to Compressor Run Load Amps (RLA)) 12-20 – (115V Single Phase) 08-16 – (230V Single Phase) 16-32 – (230V Single Phase) Nominal Voltage Rating 0 – 115/60/1 1 – 208-230/50-60/1 Vintage B – Current, Single-Phase Rev.
Dimensional Data Single Phase 2.94” 5.30 LE D 1.96” 3.80 3.80 3.16 0.65 3.
Single Phase Soft Starters Physical Characteristics SureStart Model Storage Temperature, oF [oC] Case Material IP Rating Line Conductor, AWG Line Conductor Strip Length, in. [mm] Minimum Line Conductor Length, in. [mm] Line Terminal Tightening Torque, in-lbs [N-m] Start Winding & Compressor Common, AWG Single Phase SS1B08-16 SS1B16-32 -40 [-40] to 185 [85] ABS Flameproof UL-94 V0 IP207 14 - 6 14 - 6 14 - 6 0.47 [12] 0.47 [12] 0.47 [12] 15.7 [400] 15.7 [400] 15.7 [400] 11.5 [1.3] 11.5 [1.3] 11.5 [1.
Application Notes Scroll Compressors SureStart technology can be applied to most scroll compressors as long as they fall within the correct range of Full Load amperage rating of the listed models. All scroll compressors have an internal equalization mechanism. SureStart is not compatible with all Digital scroll compressors. Consult Hyper Engineering when using SureStart on Digital compressors.
Single Phase Soft Starters SureStart Compatibility Guide Single Phase Nominal Supply Voltage* SS0B12-20 115/60/1 SS1B08-16 SS1B16-32 ● ● 08-16 16-32 ● 208-230/50-60/1 Full Load Amperage, FLA (Typical) 12-20 11/21/13 * - Voltage/Hz/Phase Wiring Schematics RUN WINDING RUN CAP L2 T2 S R ACTIVE (T2) START WINDING NOT USED COMP CONT C SureStart RUN CAPACITOR COMP CONT COMPRESSOR COMMON L1 T1 230V with Two Pole Contactor RUN WINDING COMP CONT RUN CAP T S R ACTIVE (T) START WINDING
Declaration of Conformity SureStart technology has been tested and certified under the following standards that apply. For United States, Canada, & Mexico UL 508/ CSA 22.2 # 14 (ETL control # 4004190) For European Union, Australia, and other countries accepting CE Marking Low Voltage Directive (LVD) IEC/ EN 60947-4-2: Low Voltage switchgear and control gear: contactors and motor-starters IEC/ EN 60335-1 & IEC/ EN 60335-2-40: Safety requirements for electrical heat pumps, air conditioners, dehumidifiers.
Single Phase Soft Starters Definitions Case Material – SureStart enclosure material Line conductor – Wiring that connects to the “run winding” and “active” terminations on single phase SureStart. Line Conductor Strip Length – This is the length of insulation stripped away in order to properly insert into the SureStart. Line Terminal Tightening Torque – The necessary torque needed to secure line conductors to the SureStart. Rated Voltage – This is the nominal supply voltage to the SureStart.
Notes Page 20
Single Phase Soft Starters Revision Guide Pages: All Description: First Published Date: By: 23 Apr 2014 DS Page 21
Contact Information: Hyper Engineering, Pty. Ltd. 4 / 14 Ralph Black Dr Wollongong Nth, NSW 2500 AUSTRALIA www.hypereng.com sales@hypereng.com (+61) 2 4229 2069 C US ©2014 Hyper Engineering, Pty. Ltd., 4 / 14 Ralph Black Dr, Wollongong Nth, 2500 AUSTRALIA. Hyper Engineering has a policy of continual product research and development and reserves the right to change design and speci cations without notice.
