Control Panel Technical Guide

Transcription

1 Control Panel Technical Guide How to select the appropriate motor starters for your HVAC & R* equipments * Heating, Ventilation, Air conditioning & Refrigeration

2 Many machines can be used in a HVAC&R installation As an example, heating, cooling and ventilation of buildings may require, depending on the selected solution, the association of machines as various as chillers, boilers, cooling towers, air handling units, terminal units, etc. Cooling tower Air handler Terminal unit Pump Boiler Water cooled chiller Control panel technical guide - HVAC & R

3 All these machines embed electric motors for three kind of applications Why this guide? A guide to choose the right contactorbased motor starter solution for your phase alternative motors: Compressor Fan Pump These motors must be protected and controled by motor starters A "Standard"solution for general purpose application An "HVAC&R adapted" solution to definite purpose application Protection is usually provided by a motor circuit breaker. Control is usually provided by a contactor, a soft starter or a Variable Speed Drive (VSD). Each solution of this guide combines thermal-magnetic protection + control by contactors. Control panel technical guide - HVAC & R

4 Contents Condensing unit Air cooled chiller Cold room Ice bank Heat pump Showcase Ice maker Water cooled chiller Compressors Compressors Compressors Compressors Condenser and/or evaporator fans Condenser and/or evaporator fans Condenser and/or evaporator fans Recirculating pumps Recirculating pumps Recirculating pumps Cooling tower Packaged terminal air conditioner Air handler Packaged unit / rooftop Evaporative cooler Composed of: Recirculating pumps Compressors Condenser fans Exhaust, Exhaust/ supply blower, supply condenser blower fans Recirculating pumps Recirculating pumps Control panel technical guide - HVAC & R

5 How to read the table? Select your HVAC&R machine Eg.: Water Cooled Chiller Find the motors that should be embedded Eg.: Compressors + recirculating pumps Fan coil unit Terminal unit Go to correspondent motor starter selection pages Eg.: page for compressors and page for pumps Condenser Furnace Boiler Evaporator Select your starter: Starter for Compressors Fan Evaporator or condenser fans Blower Recirculating pumps Glossary for HVAC&R machines Method for selection of circuit breakers and contactors Electrical diagrams for DOL and star-delta starters Products and catalogues that could also interest you Control panel technical guide - HVAC & R Starter for Fans P. P. 0 Starter for P. Appendix P. Pumps

6 Select your starter regarding your application Compressor: Starter type selection Constant speed ON-OFF control Direct-On-Line (DOL) starter Products to be chosen in the product ranges: Thermal-magnetic motor circuit breaker GV, GV or GV7 Other starting modes & Special applications More information on page LCK or LCD type contactors Constant speed ON-OFF control Inrush current limitation Soft start and/or stop Soft starter Products to be chosen in the product ranges: Thermal-magnetic motor circuit breaker GV, GV or GV7 Altistart soft starter Variable speed Inrush current limitation Soft start and/or stop Fine control Variable Speed Drive (VSD) Products to be chosen in the product ranges: Constant speed ON-OFF control Inrush current limitation Star-delta starter Products to be chosen in the product ranges: Thermal-magnetic motor circuit breaker GV, GV7 or NSX x LCD or x LCF type contactors See page 8 to select your star-delta starter regarding your application Magnetic motor circuit breaker GV, GV or GV7 Alternative protection: fuse holder TeSys DF Altivar Variable Speed Drives (VSD) Control panel technical guide - HVAC & R

7 Compressor: Direct-On-Line starter Your need: select the type of solution for your DOL starter regarding your constraints Operating specifications Solution Ambient temp. in the panel Motor inrush current Starting time Electrical durability (cycles) Mini. interval between motor stop & start Compacity requirements between devices Type 0 C x RLA* s (RLA 0 A) 0 s (RLA > 0 A) million s Close or separate mounting Standard C x RLA* s (RLA 0 A) s (RLA > 0 A) 00,000 min Separate mounting HVAC&R Adapted For other specifications, contact Schneider Electric support. *RLA = Rated Load Amperage (a) Our TeSys solution: find references for a Standard or Adapted solution The main input for selection is the current which will go through the circuit breaker (Rated Load Amperage). Corresponding nominal power (Pn) is given as information for 00 V 0 Hz. Motor Thermal-magnetic CB Contactor () (Q) (KM) (KM) Rated Load or Corresponding average Standard HVAC&R Amperage (RLA), up to 0 V (A a) nominal power (Pn) under 00 V (kw) solution Adapted solution GVME0 LCD09 LCK GVME0 LCD09 LCK GVME0 LCD09 LCK GVME0 LCD09 LCK GVME0 LCD09 LCK GVME0 LCD09 LCK0. 0. GVME0 LCD09 LCK GVME07 LCD09 LCK0.7. GVME08 LCD09 LCK0.. GVME08 LCD09 LCK0.9. GVME0 LCD09 LCK0. GVME LCD09 LCK0 8. GVME LCD09 LCK09.. GVME LCD LCK. 7. GVME0 LCD8 LCD GVME LCD LCD8 9 GVME LCD LCD 8. GVP0 LCD0A LCD GVP0 LCD0A LCD0A 0 GVP LCDA LCD0A 7 GV7RE00 LCD80 LCDA 80 GV7RE0 LCD9 LCD80 97 GV7RE0 LCD LCD9 7 GV7RS0 LCD0 LCD () Check circuit breaker breaking capacity (Icu) in catalogue defined page References given relatively to power diagram A page Nota: Dots in the contactors'reference should be replaced by the coil code. Example: 0.kW motor - 0 Vac / 0-0 Hz control voltage GVME circuit breaker + LCK0P7 contactor Coil codes V V 0 V 00 V V AC (0 0 Hz) - B7 P7 V7 N7 DC JD BD DC low consumption JL BL Warning: Contactors references selected for the HVAC&R solution have been optimized for this application and should not be used for another application. Control panel technical guide - HVAC & R 7

8 Compressor: Star-delta starter Your need: select the type of solution for your Star-delta starter regarding your constraints Operating specifications Solution Ambient temperature in the panel Motor inrush current Starting time Electrical durability (cycles) Minimum interval between motor stop & start Compacity requirements between devices Type 0 C 8 x RLA* 0 s (RLA 0 A) 0 s (RLA 80 A) million min D range min F range Close or separate mounting Standard C x RLA* s (RLA 97 A) 0 s (RLA > 97 A) 00,000 min D range 0 min F range Separate mounting HVAC&R Adapted For other specifications, contact Schneider Electric support. *RLA = Rated Load Amperage (a) Our TeSys solution: find references for a Standard solution The main input for selection is the current which will go through the circuit breaker (Rated Load Amperage). Corresponding nominal power (Pn) is given as information for 00 V 0 Hz. Motor Thermal-magnetic CB Contactors Interlock () (Q) (KM) (KM) (KM) Rated Load Amperage (RLA), up to 0 V (A a) or Corresponding average nominal power (Pn) under 00 V (kw) Line Contactor Standard solution Delta Contactor Star Contactor Electrical interlock Standard solution Mechanical interlock 0 GVP LCD0A LCD0A LCD0A 7 GVME80 LCD0A LCD0A LCD0A 80 GV7RE00 LCD0A LCD0A LCD0A 97 GV7RE0 LCD0A LCD0A LCD0A Customer cabling Customer cabling Customer cabling Customer cabling LADCM LADCM LADCM LADCM 7 GV7RE0 LCD80 LCD80 LCD80 () LA9D GV7RE0 LCD LCD LCD () LA9D0 9 0 GV7RE0 LCD LCD LCD () LA9D0 0 NSX00N () LCD0 LCD0 LCD LA9D NSX00N () LCF8 LCF8 LCF0 Customer cabling LA9FGF () Check circuit breaker breaking capacity (Icu) in catalogue defined page () With Micrologi.-M or Micrologic.M for advanced motor protection () LCD0A OK but with no available mechanical interlock () LCD80 OK but with no available mechanical interlock. References given relatively to power diagram B page Nota: Dots in the contactors'reference should be replaced by the coil code. Example: 0. kw motor - 0 Vac / 0-0 Hz control voltage GVME circuit breaker + LCK0P7 contactor Coil codes V V 0 V 00 V V AC (0 0 Hz) - B7 P7 V7 N7 DC JD BD DC low consumption JL BL Control panel technical guide - HVAC & R

9 Warning: Electrical and mechanical interlocking between star and delta contactor should always be recommended for improved reliability. Warning: Contactors references selected for the HVAC&R solution have been optimized for this application and should not be used for another application. Our TeSys solution: find references for an HVAC&R adapted solution The main input for selection is the current which will go through the circuit breaker (Rated Load Amperage). Corresponding nominal power (Pn) is given as information for 00 V 0 Hz. Motor Thermal-magnetic CB Fuse + Thermal relay Contactors Interlock or () (Q) (F) (KM) (KM) (KM) Rated or Load Amps (RLA), up to 0 V (A a) Corresp. average nom. power (Pn) under 00 V (kw) Delta contactor current (A) (informative) Thermal protection ref. + Independent mounting accessory Line Contactor HVAC&R Adapted solution Delta Contactor Star Contactor Electrical interlock HVAC&R Adapted solution Mechanical interlock 0.8 GVP LRD + LAD7B0 LCD LCD LCD LAD9V LAD9V 7 8. GVME80 LRD0 + LAD90 LCD8 LCD8 LCD LAD9V LAD9V 80. GV7RE00 LRD0 + LAD90 LCD0A LCD0A LCD0A () Customer cabling 97 GV7RE0 LRD + LAD90 LCD0A LCD0A LCD0A () Customer cabling Customer 7 7. GV7RE0 LRD +LA7D0 LCDA LCDA LCD0A cabling LADCM LADCM LADCM GV7RE0 LRD +LA7D0 LCD9 LCD9 LCD80 LA9D00 () 9 0. GV7RE0 LRD9 + A7D0 LCD9 LCD9 LCD80 LA9D00 () 0.8 NSX00N () LRD9 +LA7D0 LCD LCD LCD LA9D NSX00N () LR9F7 LCD0 LCD0 LCD LA9D0 () Check circuit breaker breaking capacity (Icu) in catalogue defined page () With Micrologic.-M or Micrologic.M, for advanced motor protection () LCD OK but with no mechanical interlock () LA9D0978 for mechanical interlock only. References given relatively to power diagram page : B for Thermal-magnetic circuit breaker solution B for fuse + relay solution Nota: Dots in the contactors'reference should be replaced by the coil code. Example: 0. kw motor - 0 Vac / 0-0 Hz control voltage GVME circuit breaker + LCK0P7 contactor Coil codes V V 0 V 00 V V AC (0 0 Hz) - B7 P7 V7 N7 DC JD BD DC low consumption JL BL Control panel technical guide - HVAC & R 9

10 Select your starter regarding your application Fan: Starter type selection Constant speed ON-OFF control Direct-On-Line (DOL) starter Products to be chosen in the product ranges: Thermal-magnetic motor circuit breaker GV LCK or LCD type contactors Other starting modes & Special applications More information on page Variable speed Inrush current limitation Soft start and/or stop Fine control Variable Speed Drive (VSD) Products to be chosen in the product ranges: Two-speed air flow adjustment Dahlander motor with Dahlander coupling Products to be chosen in the product ranges: Incremental air flow adjustment Cascading control with contactors Products to be chosen in the product ranges: Magnetic motor circuit breaker GV Alternative protection: fuse holder TeSys DF Altivar Variable Speed Drives (VSD) Magnetic motor circuit breaker GV LCK or LCD type contactors with mechanical interlock LRK or LRD type thermal relay Thermal-magnetic motor CB GV, GV LCK, LCD type contactors Fine air flow adjustment Variable control with Variable Speed Drive Products to be chosen in the product ranges: > GV or GV motor circuit breakers > LCK or LCD contactors > LRK or LRD type thermal relays > Altivar variable speed drives Identical variable speed for all the fans in operation simultaneously. Identical variable speed for all the motors, with possibility of starting and stopping the fans according to the load. Separate variable speed for each motor, with possibility of starting and stopping the fans according to the load. 0 Control panel technical guide - HVAC & R

11 Fan: Direct-On-Line starter Your need: select the type of solution for your Star-delta starter regarding your constraints Operating specifications Solution Ambient temperature in the panel Motor inrush current Starting time Electrical durability (cycles) Mini. interval between motor stop & start Compacity requirements between devices Type 0 C x RLA* 0 s. million s Close or separate mounting Standard C x RLA* s 00,000 min Separate mounting HVAC&R Adapted For other specifications, contact Schneider Electric support. *RLA = Rated Load Amperage (a) Our TeSys solution: find references for a Standard or Adapted solution The main input for selection is the current which will go through the circuit breaker (Rated Load Amperage). Corresponding nominal power (Pn) is given as information for 00 V 0 Hz. Motor Thermal-magnetic CB Contactor () Rated Load or Amperage (RLA), up to 0 V (A a) Corresponding average nominal power (Pn) under 00 V (kw) (Q) (KM) (KM) Standard solution HVAC&R Adapted solution GVME0 LCD09 LCK GVME0 LCD09 LCK GVME0 LCD09 LCK GVME0 LCD09 LCK GVME0 LCD09 LCK GVME0 LCD09 LCK0. 0. GVME0 LCD09 LCK GVME07 LCD09 LCK0.7. GVME08 LCD09 LCK0.. GVME08 LCD09 LCK0.9. GVME0 LCD09 LCK0. GVME LCD09 LCK09 8. GVME LCD09 LCK09 () Check circuit breaker breaking capacity (Icu) in catalogue defined page References given relatively to power diagram A page Nota: Dots in the contactors'reference should be replaced by the coil code. Example: 0.kW motor - 0 Vac / 0-0 Hz control voltage GVME circuit breaker + LCK0P7 contactor Coil codes V V 0 V 00 V V AC (0 0 Hz) - B7 P7 V7 N7 DC JD BD DC low consumption JL BL Warning: Contactors references selected for the HVAC&R solution have been optimized for this application and should not be used for another application. Control panel technical guide - HVAC & R

12 Select your starter regarding your application Pumps: Starter type selection Constant speed ON-OFF control Direct-On-Line (DOL) starter Products to be chosen in the product ranges: Thermal-magnetic motor circuit breaker GV, GV LCK or LCD type contactors Other starting modes & Special applications More information on page Constant speed ON-OFF control Inrush current limitation Soft start and/or stop Soft starter starter Products to be chosen in the product ranges: Variable speed Inrush current limitation Soft start and/or stop Fine control Variable Speed Drive (VSD) Products to be chosen in the product ranges: Motor redundancy (eg.: twin pumps) mechanichally locked contactors alternately driven by a Variable Speed Drive Products to be chosen in the product ranges: Thermal-magnetic motor circuit breaker GV or GV Magnetic motor circuit breaker GV or GV Alternative protection: fuse holder TeSys DF Magnetic motor circuit breaker GV or GV Alternative protection: fuse holder TeSys DF Altistart soft starter Altivar Variable Speed Drive (VSD) Altivar variable speed drive (VSD) LCK or LCD type contactors Optional interlocking Control panel technical guide - HVAC & R

13 Pumps: Direct-On-Line starter Your need: select the type of solution for your DOL starter regarding your constraints Operating specifications Solution Ambient temperature in the panel Motor inrush current Starting time Electrical durability (cycles) Mini. interval between motor stop & start Compacity requirements between devices Type 0 C x RLA* s million s Close or separate mounting Standard C x RLA* s 00,000 min Separate mounting HVAC&R Adapted For other specifications, contact Schneider Electric support. *RLA = Rated Load Amperage (a) Our TeSys solution: find references for a Standard or Adapted solution The main input for selection is the current which will go through the circuit breaker (Rated Load Amperage). Corresponding nominal power (Pn) is given as information for 00 V 0 Hz. Motor Thermal-magnetic CB Contactor () (Q) (KM) (KM) Rated Load Amperage (RLA), up to 0 V (A a) or Corresponding average nominal power (Pn) under 00 V (kw) Standard solution HVAC&R Adapted solution.7. GVME08 LCD09 LCK0.. GVME08 LCD09 LCK0.9. GVME0 LCD09 LCK0. GVME LCD09 LCK0 8. GVME LCD09 LCK09.. GVME LCD LCK. 7. GVME0 LCD8 LCD GVME LCD LCD8 9 GVME LCD LCD 9 GVP0 LCD0A LCD GVP0 LCD0A LCD0A 0 GVP LCDA LCD0A () Check circuit breaker breaking capacity (Icu) in catalogue defined page References given relatively to power diagram A page Nota: Dots in the contactors'reference should be replaced by the coil code. Example: 0.kW motor - 0 Vac / 0-0 Hz control voltage GVME circuit breaker + LCK0P7 contactor Coil codes V V 0 V 00 V V AC (0 0 Hz) - B7 P7 V7 N7 DC JD BD DC low consumption JL BL Warning: Contactors references selected for the HVAC&R solution have been optimized for this application and should not be used for another application. Control panel technical guide - HVAC & R

14 For detailed electrical characteristics and dimensions, please consult: To discover the TeSys range, connect on: Flexible Safety Control and Protection Components Catalogue (Ref. MKTED00EN) Smart Connected Energy efficiency Protection Compliant Reliable Let Available be your drive TeSys range: TeSys GV, TeSys GK, TeSys GS, TeSys DF, TeSys K, TeSys D, TeSys F, TeSys B, TeSys LR, TeSys LT, TeSys M,TeSys T, TeSys Vario, TeSys U, TeSys LE, TeSys LG Control panel technical guide - HVAC & R

15 Appendix Control panel technical guide - HVAC & R

16 HVAC&R machine definitions Spare parts for refrigeration Compressor In a refrigeration cycle, a compressor is a device which pumps the refrigerant gas up to a high pressure and temperature. Condenser A condenser or condensing coil is a heat exchanger incorporated in a refrigeration cycle. It is designed to enable the liquid refrigerant to lose energy (heat) to the outside in order to cool, while it condenses into its liquid phase. Evaporator An evaporator or evaporating coil is a heat exchanger incorporated in a refrigeration cycle. It is designed to enable the liquid refrigerant to absorb energy (heat) from the outside in order to warm up, while it evaporates into its gas phase. Commercial and industrial refrigeration Cooling Condensing unit The function of a condensing unit is to cool down the incoming refrigerant vapour and condense it into liquid. A condensing unit embeds a compressor and a condenser fan. Cold room A cold room is a sealed box which is used to store goods in a fresh or frozen ambient atmosphere. It contains an evaporator. Either an integrated or remote condensing unit is connected to the evaporator. Refrigerated/low-temperature showcase A refrigerated (or low-temperature) showcase/display cabinet is used for sale of chilled (or frozen) foodstuffs. It can be self-refrigerated or connected to a remote condensing unit. Ice-maker machine An ice-maker machine produces ice for industrial processes. It can be self-refrigerated or connected to a remote condensing unit. Ice bank An ice bank produces and stores ice in order to increase cooling power for peak loads. This device has three benefits: - Generation of ice at low night tariffs - Limitation of max. electricity peaks - Use of smaller refrigeration machines, designed for average demand only. It can be self-refrigerated or connected to a remote condensing unit. Chiller A chiller is a device forming part of an air conditioning system, that removes heat from a liquid via a vapourcompression or absorption refrigeration cycle. The cooled liquid usually supplies coils in air handlers, fan-coil units, or other systems. Chillers are of two types: > > Air-cooled chillers are usually outdoors and consist of a condenser coil cooled by fan-driven air. > > Water-cooled chillers are usually located inside a building, and heat from these chillers is carried by recirculating water to a heat sink such as an outdoor cooling tower. Cooling tower A cooling tower is a heat discharge device installed outside of the building envelope. It is used to cool water that has been heated in the condenser of a water-cooled chiller (in a refrigerant/water fluid exchanger). Control panel technical guide - HVAC & R

17 Heating Heat pump A heat pump is a device that warms or cools a building by transferring heat from a relatively low-temperature reservoir to one at a higher temperature (air to water or water to water or direct expansion circuit). Boiler A boiler is a closed vessel in which water or another fluid is heated. The heated or vaporized fluid leaves the boiler for use in various processes or heating applications, including central heating in a hydronic system. Furnace A furnace is a heating system component designed to heat air for distribution in a building. Ventilation and air conditioning Air handler / Air Handling Unit (AHU) An air handler is a device used to condition and circulate air as part of a Heating, Ventilation and Air Conditioning (HVAC) system, to meet environmental requirements. It includes cooling coils and possibly heating coils to cool and/ or warm air. Cold/warm water is supplied by a remote chiller and/or heater. Terminal Unit (TU) A Terminal Unit is an outlet in ductwork to allow air delivery to an environment such as a room. Terminal units may have built-in heating and cooling coils connected to central heating and/or cooling systems. Fan Coil Unit (FCU) A Fan Coil Unit is a Terminal Unit which is not connected to air ductwork but to a hydronic system. Packaged Unit (PU) A Packaged Unit is an AHU equipped with its own heating and cooling sources. It can be classified according to the place of installation: > > Roof Top Unit (RTU), installed on the roof and completely weatherproof > > Indoor Packaged Unit, installed indoors, usually connected to a cooling tower Packaged Terminal Air Conditioner (PTAC) A Packaged Terminal Air Conditioner is a Packaged Unit dedicated to a single room. It consists of a wall sleeve and a separate encased combination of heating units (by hot water, steam, or electric resistance) and cooling units (includes refrigeration components) for mounting through the wall. Evaporative cooler An evaporative cooler (also called swamp cooler, desert cooler, and wet air cooler) is a device that cools air through the evaporation of water. This method uses far less energy than refrigeration, but once evaporated, the water is lost. In extremely dry climates, evaporative cooling of air has the added benefit of conditioning the air with more moisture for the comfort of building occupants. Control panel technical guide - HVAC & R 7

18 Method for selection of the circuit breaker and contactor The selection of control and protection components requires a good knowledge of the application data but, above all, a knowledge of the components' characteristics. These characteristics are available in the Schneider Electric "Control and protection components" catalogue. Choice of the contactor-base motor starter Examples of project data Wound-rotor asynchronous motor. Starting must be gradual to avoid peak currents. Selection criteria Standard layouts /L /L /L Starting torque is lower than one-third of nominal torque. /L /L /L Q Q KM Line KM Delta KM Star KM U V W M U V W W U V M Direct starting: The motor starts quickly, with its natural characteristics creating a current peak on the network. Star-delta starting: Condition: starting torque must be lower than one-third of nominal torque. The motor starts gradually, at reduced voltage. Low current peak (one-third) at starting. contactors are used, of which are mechanically interlocked. Choice of motor circuit breaker Examples of project data Data concerning the electrical network: 0 ka short-circuit current at the motor level Data concerning the motor: MADE IN FRANCE DM0 MOT. XYZ00 BRAND N 89/79 kg Code : T IP I cl. F 0 C S % c/h Hz min - kw cos A DE NDE MOTEURS The inrush current is times the Rated Load Amperage (or nominal current): x 7. =. A g h IEC XXXXX Selection criteria To select your motor protection properly, you must check that: Motor circuit-breakers from 0.0 to kw / 00 V, with screw clamp terminals GV ME with pushbutton control Standard power ratings of -phase motors Setting Magnetic Reference Weight 0/0 Hz in category AC- range tripping 00/ V 00 V 90 V of thermal current trips Id ± 0 % P Icu Ics P Icu Ics () P Icu Ics () () () kw ka % kw ka % kw ka % A A kg GV ME > >00 >00 >00 > GV ME GV ME 0.0 > The maximum operating voltage of the CB is greater than the motor nominal voltage; > > The short-circuit current does not exceed the circuit breaker's breaking capacity (Icu); > > The inrush current does not exceed the magnetic tripping current; > > The motor's nominal current is within the thermal trip setting range of the overload protection system. 8 Control panel technical guide - HVAC & R

19 Choice of contactor Examples of project data Contactor characteristics The max. temperature of the panel in operation must not exceed C To select your contactor properly, you must check that: Contactor type LC D09 D8 DT0 and DT D D8 DT and DT0 D0A DA DT0A and DT80A Environment Ambient air temperature Storage C around the device Operation C D80 D9 D and D0 Permissible C , for operation at Uc Maximum operating altitude Without derating m 000 The panel temperature acceptable by the selected contactor must be compatible with the project data. MADE IN FRANCE DM0 MOT. XYZ00 BRAND N 89/79 kg Code : T IP I cl. F 0 C S % c/h Hz min - kw cos A DE NDE MOTEURS Nominal voltage (Un) in delta cabling= 00 V Rated Load Amperage (RLA) for this voltage = 7. A g h IEC XXXXX Contactor type LC D09 (P) DT0 D098 D (P) DT D8 D8 (P) DT D88 D (P) DT0 D8 Pole characteristics Rated operational current (Ie) In AC-, θ 0 C A 9 8 (Ue y 0 V) In AC-, θ 0 C A () 0 () () 0 () 0 Rated operational voltage (Ue) Up to V Frequency limits Of the operational current Hz Conventional thermal θ 0 C A () 0 () () 0 () 0 The current maximum (Ith) voltage (Ue) that can be withstood by each pole of the contactor must Rated making capacity (0 V) Conforming to IEC 097 A be Rated greater breaking capacity than (0 the V) Conforming motor's IEC working 097 A voltage 0 Un Permissible short time rating For s A No current flowing for preceding For 0 s A Contactor minutes with type θ 0 C LC D09 DT0 D DT D8 DT D DT0 For min A (P) D098 (P) D8 8 (P) D88 0 (P) D8 Pole characteristics For 0 min A Fuse protection Without thermal type A 0 0 against Rated operational short-circuits current (Ie) overload In AC-, θ relay, 0 C 9 8 (Ue y 0 V) type A 0 0 (U 90 V) gg In AC-, fuse θ 0 C () 0 () () 0 () 0 Rated operational voltage (Ue) With Up to thermal overload relay A V See 90 pages /0 and /, 90 for am or gg fuse 90 ratings corresponding 90 to the associated Frequency limits Of the operational current Hz 00 thermal overload relay Conventional Average impedance thermal per pole At θ Ith 0 and C 0 Hz mω A. () 0. (). () 0 () 0 Power current dissipation (Ith) per pole for AC- W the Rated above making operational capacity currents (0 V) Conforming AC- to IEC 097 A W The Rated breaking maximum capacity (0 continuous V) Conforming to IEC current 097 (Ith) A that 0 can be withstood 0 by 00 each pole of 0 the Permissible short time rating For s A contactor No current flowing for must preceding be For greater 0 s than the RLA A of 0 the motor. 0 0 minutes with θ 0 C For min A 8 0 Contactor type For 0 min LC A 0 D09 DT0 0 D DT 0 D8 DT 0 D DT0 Fuse protection Without thermal type A (P) D098 0 (P) D8 0 (P) D88 (P) D8 against short-circuits overload relay, (U Pole 90 characteristics V) gg fuse type A 0 0 Rated operational current (Ie) In AC-, θ 0 C A 9 8 (Ue y 0 V) With thermal overload relay See pages /0 and /, for am or gg fuse ratings corresponding to the associated In AC-, θ 0 C A thermal () overload 0 relay () () 0 () 0 Average Rated operational impedance voltage per pole (Ue) At Up Ith to and 0 Hz mω V Power Frequency dissipation limits per pole for AC- Of the operational current W Hz the Conventional above operational thermal currents θ AC- 0 C A W. () 0. (). () 0. () 0 current (Ith) Rated making capacity (0 V) Conforming to IEC 097 A Rated breaking capacity (0 V) Conforming to IEC 097 A Permissible short time rating For s A No current flowing for preceding For 0 s A minutes with θ 0 C For min A 8 0 For 0 min A Fuse protection Without thermal type A 0 0 against short-circuits overload relay, The Rated Making Capacity (RMC) type and A Rated 0 Breaking Capacity (RBC) of the 0 (U 90 V) gg fuse contactor must be With greater thermal overload than relay the maximum A See pages starting /0 and /, current for am or gg fuse (expressed ratings corresponding as to a the associated thermal overload relay multiple Average impedance of the per pole motor's At Ith and nominal 0 Hz current mω (A):. coef. in. the example).. Power dissipation per pole for AC- W the above operational currents AC- W.... Contactor type LC D09 DT0 D DT D8 DT D DT0 (P) D098 (P) D8 (P) D88 (P) D8 Pole characteristics Rated operational current (Ie) In AC-, θ 0 C A 9 8 (Ue y 0 V) In AC-, θ 0 C A () 0 () () 0 () 0 Rated operational voltage (Ue) Up to V Frequency limits Of the operational current Hz Conventional thermal θ 0 C A () 0 () () 0 () 0 current (Ith) Rated making capacity (0 V) Conforming to IEC 097 A Rated breaking capacity (0 V) Conforming to IEC 097 A Permissible short time rating For s A No current flowing for preceding For 0 s A minutes with θ 0 C For min A 8 0 For 0 min A Fuse protection Without thermal type A 0 0 against short-circuits overload relay, Check that the starting current value type A and 0 the maximum starting time are compatible 0 (U 90 V) gg fuse with the contactor's With thermal overload constraint. relay A See pages /0 and /, for am or gg fuse ratings corresponding to the associated thermal overload relay Average impedance per pole At Ith and 0 Hz mω... For Power short dissipation times, per pole for a contactor AC- (e.g. star W contactor) 0.0 can 0. be used above 0.8 its design. the above operational currents AC- W.... Maximum starting current: x 7. A Contactor type LC D09 Maximum starting time: sec Contactor type LC D09 Minimum interval between two cycles: min current, provided one check that: > > the current does not exceed the maximum permissible current for the given operating time > > the minimum interval between two cycles is complied with. Control panel technical guide - HVAC & R 9

20 Method for selection of the circuit breaker and contactor Choice of contactor (continuation) Examples of project data The motor shall perform at most starts per hour during years, i.e.: x x x =. m cycles MADE IN FRANCE DM0 MOT. XYZ00 BRAND N 89/79 kg Code : T IP I cl. F 0 C S % c/h Hz min - kw cos A DE NDE MOTEURS g h IEC XXXXX Contactor characteristics Millions of operating cycles 0 8, LC, LP, LP K0 LC, LP, LP K09 LC-D09 LC, LP, LP K LC D LC K LC D8 LC D LC D LC D8 0,8 0, 0, Current broken in A 0 V 00 V 0,7 0,, 0,7,,,,,,, 7, 7, LC D0A, LC D0A 7, LC DA 8, LC D80 LC D9 LC D 0 V kw When a contactor has been selected, you must check that its durability will be greater than or equal to the required value. 8, LC D , kw kw The contactor's durability depends on the current that it will have to shut off (generally the operating current). Following thermal sizing of the cables, it was decided to use. mm² flexible cable to connect the contactor. Star-delta starting with mechanical and electrical interlocking of the contactors is required. Contactor type LC D09 D8 D D D8 D8 and D0A to D80 D and D (P) (P) D (P) DA and D9 and D0 DT0 DT and DT0A and DT DT0 and DT80A () Power circuit connections Screw clamp terminal connections Tightening Screw clamp terminals Connector inputs Screw clamp Connector input Connector inputs terminals Flexible cable conductor mm without cable end conductors mm and Flexible cable conductor mm with cable end conductors mm... 0 and Solid cable without cable end conductor mm The selected contactor must be able to receive the specified cables. conductors mm and Screwdriver Philips N N N N Flat screwdriver Ø Ø Ø Ø Ø Ø Ø 8 Mechanical interlocks Hexagonal key Mechanical Tightening torque interlock with integral electrical interlocking N.m.7 LC D80.7 and. D9 (a) LC D80 and D9 (c).8 LA9 D00 : LA9 D800 y mm 8: mm LC D and D0 LA9 D Mechanical interlock without LC D09 to D8 LAD 9V 0.00 integral electrical interlocking LC D0A to DA LAD CM 0.00 LC D80 and D9 (a) LA9 D LC D80 and D9 (c) LA9 D Sets of power connections In star-delta configuration, the selected contactor must be capable of mechanical LC D09 to D8 with screw and electrical interlocking. clamp terminals or connectors Comprising: b a set of parallel bars, b a set of reverser bars. LC D09 D with spring terminal connections LAD 9V + LAD 9V LAD 9V + LAD 9V () If electrical interlocking equipment does not exist for the selected contactor, the interlocking system must be cabled by the user (see next page). LC D0A to DA LA9 DA9 0.0 LC D80 and D9 (a) LA9 D LC D80 and D9 (c) LA9 D LC D and D0 LA9 D9.0 0 Control panel technical guide - HVAC & R

21 Electrical diagrams Power diagrams A Direct-on-line With thermal-magnetic motor circuit breaker. B Star-delta for standard solution With thermal-magnetic motor circuit breaker. B Star-delta for adapted solution With fuse (or magnetic motor circuit breaker) and separate thermal overload relay. /L /L /L /L /L /L /L /L /L Q Q Q KM KM Line KM Delta KM Star KM Line KM Delta KM Star U V W U V W U V W M M M F W U V W U V The current in KM and KM contactors is (/) the nominal current. Using a separate overload relay, as proposed in the "adapted solution" makes it possible to lower rating than if it was directly downstream the magnetic protection Q. Control diagrams A Direct-on-line B Star-delta Electrical interlocking 80 A > 80 A STOP S STOP S STOP START S KM START S KM START Delayed KM KM KM KM KM KM Delayed KM Delayed KM Delayed KM KM KM Star Direct Delta KM KM KM KM KM KA Star Delay Delta Direct KM KM KA KM Push button S instantaneously activates contactor KM, which is then self-maintained. When activated, push-button S opens the line. Push button S instantaneously activates contactor KM (star contactor), which is self-maintained. > KM activates KM (line contactor), which is self-maintained, and locks KM (delta contactor) open. > KM activates the time delay. > Once the time delay is over, KM is deactivated and KM (delta contactor) is activated. Same principle as beside, except KA. This relay provides a short extra delay before KM is closed, thereby avoiding the risk of short-circuit during the transition. Control panel technical guide - HVAC & R

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23 Acti9 ic0n Circuit breakers TeSys GV Motor circuit breakers Harmony Push buttons and switches Spacial Enclosures Climasys Enclosure thermal management (fans, heating elements, thermostats) TeSys Vario Switch disconnectors Lynergy DS Distribution blocks Linergy TR Terminal blocks Phaseo DC power supplies Zelio Relays TeSys K, D Contactors, relays, thermal overload relays Altivar & Altistart Variable speed drives and soft starters Modicon M8 Logic controllers iem000 series Energy, power meters Control panel technical guide - HVAC & R

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