Alco Controls
Alco Controls Alco Controls
Electronic Smart Starter ESC-255 / ESC-325 Selection Chart ESC Type Part No. Max. compressor running current Smart Starter ESC-255 805 175 25A Smart Starter ESC-325 805 176 32A including mounting clip, plug, connectors, operating instructions 50 The electronic Smart Starter ESC-255 / ESC-325 is used for switching, protection and starting current limitation of single phase compressors in refrigeration and air-conditioning applications Features • For motors with up to 25A / 32A max. operating current • Limitation of starting current to less than 45A • Self adjusting to motor current - no manual adjustment or calibration necessary • Many motor protection functions: -Low voltage shut down -Locked rotor recognition and shutdown -Delay function to limit number of motor starts per hour • Self diagnostics • Indicator LED • Thyristor protected contactor for long life • No extra motor contactor needed • Easy Installation Technical Data Operating voltage 230 V 50 Hz nominal Compressor starting current limited to max. 45A Operating temperature -20 ... +65°C non condensing Storage temperature -40 ... +85°C non condensing Start capacitor 200 ... 240 uF ESC-255 Standards: • per Low Voltage Directive (EN 60947-1/EN 60947-5-1) • EN 60947-4-2 Contactors and motor starters - AC semiconductor motor controllers and starters Flicker (EN 61000-3-3 / IEC-1000-3-11) • Safety and environmental requirements for refrigeration systems and heat pumps (EN 378) Weight 400 g Protection acc. IEC 529 IP 20 Max. vibration 4 g (at 10 … 1000 Hz) Time delay after stop 3 min Wiring Diagram Start Current vs Time (a) Motor without current limitation (b) Large motor with ESC Smart Starter (c) Small motor with ESC Smart Starter ESC Contacts: R = Output motor run winding RC = Output run capacitor L1 = 230V / 50Hz power input S = Sensor line to start winding ON = Start input (ON if connected to 230V) N = Neutral line A2.5.1/0706/E
Pressure Transmitter Series PT4 A2.5.1/0706/E PT4 Pressure Transmitters convert a pressure into a linear electrical output signal. Features • Pressure sensitive piezo-based cell with strong primary output signal for precise and noiseless operation • Sealed gauge absolute pressure reference principle provides the regulation accuracy independent from atmospheric pressure variation • Vibration, shock and pulsation resistant • Protection class IP 65 • Compact dimensions • Output signal 4 to 20 mA • Calibrated for specific temperature and pressure ranges to fulfill application demands in airconditioning and refrigeration systems • Variable supply voltage • CE-mark under EC EMC-Directive • Standard pressure ranges compatible with former PT3 ALCO pressure transmitters Options • Other pressure ranges and calibrations Selection Chart Transmitters Cable Assemblies Type Part No. Temperature Cable Leads range length C° (m) PT4-L15 804 593 1.5 PT4-L30 804 594 -50 ... +80 °C 3.0 2 x 0,34 mm2 PT4-L60 804 595 6.0 PT4-xxS PT4-Lxx Standards: • per EMC Directive • Underwriter Laboratories UL LISTED SDFY2/SDFY8.E258370 Type Part No. Output Pressure Max. working Pressure signal range pressure PS Connection (bar) (bar) PT4-07S PT4-18S PT4-30S PT4-50S 802 320 802 322 802 324 802 326 4 ... 20 mA -0.8 ... 7 0 ... 18 0 ... 30 0 ... 50 25 33 33 50 7/16” -20 UNF (with schrader valve opener) PT4-Lxx 51
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- Page 5 and 6: Fan Speed, Temperature and Pressure
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- Page 9 and 10: Electrical Control Valves Series EX
- Page 11 and 12: Liquid temperature Correction Facto
- Page 13 and 14: Capacity Data Application Expansion
- Page 15 and 16: Application Expansion Valve and Liq
- Page 17 and 18: Application Expansion Valve and Liq
- Page 19 and 20: Application Expansion Valve and Liq
- Page 21 and 22: Application Hot Gas Bypass - Nomina
- Page 23 and 24: Application Suction Pressure Regula
- Page 25 and 26: Application Condensing Pressure Reg
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- Page 33 and 34: Electronic Controllers with Network
- Page 35 and 36: Selection Table Electronic Controll
- Page 37 and 38: Universal Driver Modules Series EXD
- Page 39 and 40: Accessories Type Part No. Terminal
- Page 41 and 42: Coldroom Controller Series EC3 Temp
- Page 43 and 44: Block Diagram EC3-33x Coldroom Cont
- Page 45 and 46: Selection table TCP/IP LON Descript
- Page 47 and 48: Rack and Condenser Controllers Seri
- Page 49 and 50: Block Diagrams EC3-81x Dual Ciruit
- Page 51: Network Accessories Description Cab
- Page 55 and 56: Electronic Fan Speed Power Module F
- Page 57 and 58: A2.5.1/0706/E Thermo ® -Expansion
- Page 59 and 60: A2.5.1/0706/E Example Cooling capac
- Page 61 and 62: TIS(E) Valve bodies - solder type m
- Page 63 and 64: Capacity kW Valve Type TI..-M.... C
- Page 65 and 66: Condensing Temperature R 22 Capacit
- Page 67 and 68: R 407C Nominal less MOP with Standa
- Page 69 and 70: A2.5.1/0706/E Available upon specia
- Page 71 and 72: Liquid Correction Factor K t Temper
- Page 73 and 74: Thermo ® -Expansion Valve Series Z
- Page 75 and 76: Liquid Correction Factor K t Temper
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- Page 79 and 80: Accessories Description Type Part N
- Page 81 and 82: Liquid Correction Factor K t Temper
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- Page 85 and 86: Coils ASC Type Part No. Voltage Pow
- Page 87 and 88: 2-Way Solenoid Valves Series 540 No
- Page 89 and 90: 2. Liquid Application Liquid Correc
- Page 91 and 92: A2.5.1/0706/E Mechanical Pressure R
- Page 93 and 94: Hot Gas Bypass Regulators Series AC
- Page 95 and 96: Head Pressure Control Valves Series
- Page 97 and 98: Evaporator and Crankcase Pressure R
- Page 99 and 100: A2.5.1/0706/E Fan Speed Controllers
- Page 101 and 102: Technical Data Function Diagram A2.
Electronic Smart Starter ESC-255 / ESC-325<br />
Selection Chart ESC<br />
Type Part No. Max. compressor running current<br />
Smart Starter ESC-255 805 175 25A<br />
Smart Starter ESC-325 805 176 32A<br />
including mounting clip, plug, connectors, operating instructions<br />
50<br />
The electronic Smart Starter ESC-255 / ESC-325<br />
is used for switching, protection and starting<br />
current limitation of single phase compressors in<br />
refrigeration and air-conditioning applications<br />
Features<br />
• For motors with up to 25A / 32A max. operating<br />
current<br />
• Limitation of starting current to less than 45A<br />
• Self adjusting to motor current - no manual<br />
adjustment or calibration necessary<br />
• Many motor protection functions:<br />
-Low voltage shut down<br />
-Locked rotor recognition and shutdown<br />
-Delay function to limit number of motor starts<br />
per hour<br />
• Self diagnostics<br />
• Indicator LED<br />
• Thyristor protected contactor for long life<br />
• No extra motor contactor needed<br />
• Easy Installation<br />
Technical Data<br />
Operating voltage 230 V 50 Hz nominal<br />
Compressor starting current limited to max. 45A<br />
Operating temperature -20 ... +65°C non condensing<br />
Storage temperature -40 ... +85°C non condensing<br />
Start capacitor 200 ... 240 uF<br />
ESC-255<br />
Standards:<br />
• per Low Voltage Directive<br />
(EN 60947-1/EN 60947-5-1)<br />
• EN 60947-4-2 Contactors and motor starters - AC<br />
semiconductor motor controllers and starters<br />
Flicker (EN 61000-3-3 / IEC-1000-3-11)<br />
• Safety and environmental requirements for<br />
refrigeration systems and heat pumps (EN 378)<br />
Weight 400 g<br />
Protection acc. IEC 529 IP 20<br />
Max. vibration 4 g (at 10 … 1000 Hz)<br />
Time delay after stop 3 min<br />
Wiring Diagram Start Current vs Time<br />
(a) Motor without current limitation<br />
(b) Large motor with ESC Smart Starter<br />
(c) Small motor with ESC Smart Starter<br />
ESC Contacts:<br />
R = Output motor run winding<br />
RC = Output run capacitor<br />
L1 = 230V / 50Hz power input<br />
S = Sensor line to start winding<br />
ON = Start input<br />
(ON if connected to 230V)<br />
N = Neutral line<br />
A2.5.1/0706/E
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