Alco Controls EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves
Transcription
Alco Controls EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves
EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Technical Data ALCO Controls EX4 / EX5 / EX6 / EX7 / EX8 are stepper motor driven valves for precise control of refrigerant mass flow in air conditioning, refrigeration, heat pumps, close control, and industrial process cooling applications. The Control Valves can be used as thermo-expansion duty, liquid injection duty, hot gas bypass, evaporator pressure regulator, crankcase pressure regulator, head pressure regulator, or liquid level control. This data sheet describes only the performance of the valves. Operation of required controllers, driver boards and sensors are part of other documentations (see page 29). EX4 / EX5 / EX6 (Uni-flow/Bi-flow) Features • • • • • • • • • • • • • • • • • Multifunction as expansion valves, hot gas bypass, suction gas throttling, head pressure, liquid level actuator etc. Fully hermetic design (no thread joints between valve body and motor compartment) Applicable to all common refrigerants (HCFC, HFC) and for subcritical CO2 applications Stepper motor driven Short opening and closing time Very fast full stroke time High resolution and excellent repeatability Bi-flow versions for heat pump applications Positive shut-off function to eliminate the use of an additional solenoid valve Linear flow capacity Extremely wide capacity range (10 … 100%) Continuous modulation of mass flow, no stress (liquid hammering) in the refrigeration circuit Direct coupling of motor and valve for high reliability (no gear mechanism) Ceramic slide and port for accurate flow and minimal wear Balanced force design Corrosion resistant stainless steel body and connections Europe patent No. 0743476, USA patent No. 5735501, Japan patent No. 28225789 EX7 (Uni-flow/Bi-flow) EX8 (Uni-flow) Selection table Type Part No. Flow pattern Capacity range EX4-I21 800 615 3/8” ODF 5/8” ODF EX4-M21 800 616 10 mm ODF 16 mm ODF EX5-U21 800 618 5/8” (16 mm) ODF 7/8” (22 mm) ODF EX6-I21 800 620 7/8” ODF 1-1/8” ODF EX6-M21 800 621 EX7-I21 800 624 EX7-M21 800 625 Uni-flow 10 … 100% Inlet connection Outlet connection 22 mm ODF 28 mm ODF 1-1/8” (28 mm) ODF 1-3/8” (35 mm) ODF 1-1/8” (28 mm) ODF 1-3/8” (35 mm) ODF EX8-M21 800 629 42 mm ODF 42 mm ODF EX8-U21 800 630 1-3/8” (35 mm) ODF 1-3/8” (35 mm) ODF EX8-I21 800 631 1-5/8” ODF 1-5/8” ODF EX4-U31 800 617 5/8” (16 mm) ODF 5/8” (16 mm) ODF 7/8” (22 mm) ODF 7/8” (22 mm) ODF 1-1/8” ODF 1-1/8” ODF Bi-flow (Heat pump) EX5-U31 800 619 EX6-I31 800 622 EX6-M31 800 623 28 mm ODF 28 mm ODF EX7-U31 800 626 1-3/8” (35 mm) ODF 1-3/8” (35 mm) ODF Electric connector M12 plug EX4/5/6/7/8 are delivered without cable/connector assembly (order separately). EX48_35008_EN_R10.doc 1 / 32 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Cable and connector assembly Type Part No. EX5-N15 804 650 EX5-N30 804 651 EX5-N60 804 652 EX5-L60 804 655 Temperature Range Length Connector type to valve Connector type to driver board or controller M12 Loose wires Illustration 1.5 m -25 … +80°C 3.0 m 6.0 m -50 …+80°C 6.0 m M12, low temp. Introduction Guidelines for selection of electrical control valves Thermostatic expansion valves and mechanical regulator valves have been used in the refrigeration and air conditioning industry to control superheat and refrigerant mass flow since its very beginning. As today’s systems require improved energy efficiency, tighter temperature control, wider range of operating conditions and incorporate new features like remote monitoring and diagnostics, the application of electronically operated valves becomes mandatory. Only they offer the controls performance necessary to meet these needs. As more new refrigerants appear on the market requiring an ever increasing number of different charges and settings for thermostatic expansion valves, electrical control valves can solve this problem too. ALCO electrical control valves are the solution for the challenges above. The latest technology and more than 80 years of experience in design and production of flow controls including Thermo® expansion valves have been incorporated in the design of the EX4, EX5, EX6, EX7 and EX8. The following guideline should be taken in to the consideration in order to obtain full advantages of ECV: Published capacities are maximum. There are no reserve capacities. Larger size of valve leads to shorter pull down period and shorter travel time i.e. faster respond. For example, EX7 has maximum 3.2 seconds travel time. The valve has approximately 1.6 seconds travel time at 50% capacity operation. Construction EX4/EX5/EX6/EX7/EX8 consist of two main internal assemblies, the valve and the stepper motor. The stepper motor is connected directly to the slide and cage assembly of the valve. Similar to the technology used in compressors, the motor is exposed to refrigerant and lubricant and the materials used are identical. The housing of the motor and valve assembly is fully hermetic, utilising exclusively brazing and welding technologies and eliminating all gaskets. This design offers several technical advantages. The motor is direct coupled to the valve assembly for easy and reliable movement of the valve slide, no need for any other seals and eliminating the use of bellows and diaphragms which could be subject to lifetime limitations and leaks. Four electrical pins connect the motor to the outside. These pins are applied to the housing using melting-glass process technology. The EX4/5/6/7/8 pins require a M12 electrical connector. The complete housing of the ECVs is made from stainless steel. Unlike to mechanical expansion valves, EX4/5/6/7/8 are equipped with ceramic slide port. Features: Wide range regulation (10 … 100%) with one slide orifice for each valve Linear characteristic over entire capacity range Positive shut-off EX48_35008_EN_R10.doc ALCO Selection Tool For easy and quick selection of Electrical Control Valves an Excel based selection tool can be ordered from the ALCO sales offices, or use the quick selection tables mentioned in this datasheet. Example: System with R407C having two different operating conditions: A) 110 kW capacity at +4°C/+50°C with two stages compressor at 50%/100% capacity B) 137 kW at +4°C/+30°C with two stages compressor at 50%/100% capacity EX6 with 126 kW covers condition A, however is not sufficient to cover condition B. It is recommended to select the larger valve EX7 which offers 337 kW at condition A and 293 kW at condition B. Condition A: Full load ratio = 110 = 33% 337 Partial load ratio = (110 / 2) = 16% 337 Condition B: Full load ratio = 137 = 47% 293 (137 / 2) = 23% 293 The capacity ratios of system to valve are in all conditions higher than 10%. It is recommended to use EX7 rather EX6. Partial load ratio = 2 / 32 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls EX4/EX5/EX6/EX7/EX8 nominal and extended capacities as expansion valves and liquid injection valves Nominal Capacities (10% … 100%), kW Valve Type R 407C R 22 EX4 2 ... 17.4 2 ... 16.5 EX5 5 ... 53 5 ... 50 EX6 15 ... 126 15 ... 120 EX7 35 ... 347 35 ... 330 EX8 100 ... 925 90 ... 880 R 134a 1 ... 12.8 4 ... 39 10 ... 93 25 ... 255 70 ... 680 R 404A 1 ... 11.5 4 ... 35 10 ... 84 25 ... 230 60 ... 613 R 410A 2 ... 19.3 6 ... 58 15 ... 140 40 ... 385 100 ... 1027 R 23 2 ... 17.8 5 ... 54 13 ... 130 - R 124 1 ... 9.2 3 ... 28 7 ... 67 - R 744 3 ... 33.5 10 ... 102 24 ... 244 70 ... 670 180 ... 1789 Note 1: EX Bi-flow versions are not released for use with R124 and R23 refrigerants. Note 2: EX Bi-flow versions have identical capacity in both flow direction. The nominal capacity (Qn) is based on the following conditions: Refrigerant Evaporating temperature Condensing temperature R 22, R 134a, R 404A, R 410A +4°C +38°C R 407C +4°C dew point +38°C bubble / +43°C dew point R 124 +20°C +80°C R 23 -60°C -25°C R 744 -40°C -10°C Overview of working pressure regardless of applied refrigerant type Valve type Flow pattern Maximum working pressure PS EX4, EX5, EX6, EX7 Uni-flow/Bi-flow 45 bar EX8 Uni-flow 45 bar Subcooling 1K 1K 1K 1K 1K Factory test pressure PT 49.5 bar 49.5 bar Capacity Diagrams (kW) Qn, kW 35 30 R744 (33.5 kW) R410A (19.3 kW) 25 R23 (17,8 kW) R407C (17.4 kW) 20 R22 (16.5 kW) R134a (12.8 kW) R404A (11.5 kW) 15 34 EX4 19 18 17 17 R124 (9.2 kW) 13 12 9 10 5 0 0 50 00 100 150 200 250 300 350 400 450 500 550 600 650 700 750 Number of Steps 110 R744 (102 kW) R410A (58 kW) 100 90 EX5 R23 (54 kW) R407C (53 kW) 80 70 Qn, kW 102 R22 (50 kW) R134a (39 kW) R404A (35 kW) 60 50 58 53 54 50 R124 (28 kW) 40 39 35 28 30 20 10 0 0 50 00 100 150 200 250 300 350 400 450 500 550 600 650 700 750 Number of Steps EX48_35008_EN_R10.doc 3 / 32 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls 250 244 R744 (244 kW) R410A (140 kW) 200 EX6 R23 (130 kW) R407C (126 kW) R22 (120 kW) Qn, kW 150 140 130 126 120 R134a (93 kW) R404A (84 kW) 100 93 84 67 R124 (67 kW) 50 0 0 0 100 50 150 200 250 300 350 400 450 500 550 600 650 700 750 Number of Steps 700 670 EX7 R744 (670 kW) 600 R410A (385 kW) 500 R407C (347 kW) Qn, kW R22 (330 kW) 400 385 347 330 R134a (255 kW) R404A (230 kW) 300 255 230 200 100 0 0 0 200 400 600 800 1000 1200 1400 1600 Number of Steps 1200 1100 Qn, kW 900 R407C (925 kW) 800 R22 (880 kW) 700 R134a (680 kW) 600 R404A (613 kW) 1027 925 880 EX8 R410A (1027 kW) 1000 680 613 500 400 300 200 100 0 0 0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 Number of Steps EX48_35008_EN_R10.doc 4 / 32 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Extended capacities as expansion and liquid injection valves The following tables provide the capacity of valves at different conditions considering 1.5 bar pressure drop through liquid line: Condensing temperature °C 60 55 50 45 40 35 30 25 20 Extended capacity kW R 410A 15 10 5 0 17 51 123 339 18 53 127 350 935 18 53 128 351 936 17 52 124 342 913 16 49 118 324 864 15 45 108 296 789 13 38 93 255 680 10 29 71 195 520 4 13 31 84 225 17 52 126 348 18 55 132 362 965 18 55 133 366 975 18 54 131 361 962 17 52 126 348 927 16 49 118 326 869 15 44 107 294 786 13 38 91 251 669 9 28 68 188 501 3 10 23 64 172 18 53 129 354 19 56 135 370 988 19 57 137 377 1006 19 57 136 375 1001 18 55 133 366 977 18 53 127 349 932 16 49 118 325 866 15 44 106 291 775 12 37 89 244 652 9 27 65 178 475 1 4 10 28 76 18 54 130 358 19 57 137 377 1005 19 58 140 386 1029 19 58 141 387 1031 19 57 138 381 1015 18 55 134 368 981 17 52 126 348 928 16 48 117 321 855 14 43 103 284 758 12 36 86 236 629 8 25 60 166 443 15 10 EX48_35008_EN_R10.doc Evaporating temperature °C -5 -10 -15 -20 -25 18 54 131 360 19 57 138 381 1016 20 59 142 392 1045 20 60 144 395 1054 20 59 142 392 1045 19 58 139 382 1019 18 55 133 366 976 17 52 125 344 916 16 47 114 314 837 14 42 100 276 735 11 34 82 225 600 18 54 131 361 19 58 139 383 1021 20 60 144 396 1056 20 60 146 401 1070 20 60 145 400 1067 20 59 143 393 1048 19 57 138 380 1013 18 54 131 361 964 17 51 122 337 898 15 46 111 305 813 13 40 96 265 706 18 54 131 360 19 58 139 383 1023 20 60 145 398 1061 20 61 147 405 1080 20 61 147 406 1082 20 60 146 401 1069 20 59 142 390 1041 19 56 136 375 1000 18 53 129 354 944 16 49 119 327 873 15 44 107 294 783 18 54 130 358 19 58 139 382 1020 20 60 145 398 1062 20 61 148 407 1085 21 62 149 409 1091 20 61 148 406 1083 20 60 145 398 1061 19 58 140 385 1027 18 55 133 367 979 17 52 125 344 917 16 47 115 315 841 5 / 32 18 53 129 354 19 57 138 380 1014 20 60 144 397 1059 20 61 148 407 1085 21 62 149 411 1095 21 62 149 409 1092 20 61 147 403 1075 20 59 143 392 1046 19 57 137 377 1005 18 54 130 357 951 17 50 121 332 885 Valve Type -30 -35 -40 -45 18 53 127 350 19 57 137 377 1005 20 59 143 394 1052 20 61 147 405 1082 21 62 149 411 1095 21 62 149 411 1095 20 61 148 406 1083 20 60 144 397 1058 19 58 139 383 1023 18 55 133 366 976 17 52 125 344 917 17 52 125 344 19 56 135 372 992 20 59 142 391 1043 20 61 146 403 1075 21 62 149 409 1091 21 62 149 410 1095 20 61 148 407 1086 20 60 145 399 1065 19 58 141 388 1034 19 56 135 372 992 18 53 128 352 940 17 51 123 338 18 55 133 366 978 19 58 140 386 1030 20 60 145 399 1064 20 61 148 406 1084 20 62 149 409 1090 20 61 148 406 1084 20 60 146 400 1067 20 59 142 390 1040 19 57 137 376 1003 18 54 130 358 956 17 50 120 331 18 54 131 360 961 19 57 138 380 1015 20 59 143 394 1052 20 61 146 402 1073 20 61 148 406 1082 20 61 147 405 1079 20 60 145 399 1065 20 59 142 390 1042 19 57 137 378 1008 18 55 132 362 965 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Extended capacities as expansion and liquid injection valves The following tables provide the capacity of valves at different conditions considering 1.5 bar pressure drop through liquid line: Condensing temperature Dew point °C Bubble point °C 64 60 59 55 54 50 50 45 45 40 40 35 35 30 30 25 26 20 21 15 16 10 EX48_35008_EN_R10.doc Extended capacity kW R 407C 15 10 5 0 16 50 119 328 874 17 50 120 330 879 16 50 118 326 869 16 48 115 316 843 15 46 109 300 801 14 42 101 278 742 12 38 90 248 661 10 32 75 207 552 7 23 54 148 395 17 51 120 332 884 17 51 122 336 895 17 51 121 334 891 16 50 119 327 873 16 48 114 315 840 15 45 108 297 793 14 42 99 273 729 12 37 88 241 644 10 30 72 199 530 7 21 50 137 365 17 51 121 333 889 17 52 123 339 904 17 52 123 340 906 17 51 122 336 894 16 50 118 326 870 16 48 113 312 832 15 45 106 292 779 13 41 97 266 710 12 36 85 233 621 9 29 69 189 503 6 19 45 123 329 17 51 121 333 889 17 52 124 341 909 17 52 125 343 915 17 52 124 341 909 17 51 121 334 891 16 49 117 323 860 15 47 111 306 817 14 44 103 285 760 13 39 94 258 687 11 34 81 223 594 9 27 64 176 470 Valve Evaporating temperature °C -5 -10 -15 -20 -25 17 51 121 332 885 17 52 124 341 908 17 53 125 345 919 17 53 125 344 918 17 52 123 339 905 17 50 120 330 880 16 48 115 317 844 15 46 108 299 796 14 42 100 276 735 12 38 90 247 658 11 32 76 210 561 17 50 119 329 877 17 52 123 339 904 17 53 125 345 919 17 53 125 346 921 17 52 124 342 913 17 51 122 335 894 16 49 118 324 864 15 47 112 309 823 14 44 105 289 770 13 40 96 265 705 12 36 85 234 624 6 / 32 16 50 118 325 867 17 51 122 336 897 17 52 125 343 914 17 53 125 345 920 17 52 125 344 916 17 52 123 338 901 16 50 119 329 876 16 48 115 316 841 15 46 108 299 796 14 42 101 277 740 13 38 91 251 670 16 49 116 320 854 17 51 121 332 886 17 52 123 340 907 17 52 125 344 916 17 52 125 343 915 17 52 123 339 904 17 51 120 331 883 16 49 116 320 853 15 47 111 305 814 14 44 104 287 764 13 40 96 264 704 16 48 114 314 838 16 50 119 328 873 17 51 122 336 896 17 52 124 341 908 17 52 124 341 910 17 52 123 338 902 17 51 121 332 885 16 49 117 322 860 16 47 112 309 825 15 45 106 293 781 14 42 99 273 727 type -30 -35 -40 -45 15 47 112 308 821 16 49 117 322 858 17 51 120 331 883 17 51 122 337 897 17 52 123 338 902 17 51 122 337 897 17 51 120 331 884 16 49 117 323 861 16 48 113 312 831 15 45 108 297 791 14 43 101 279 743 15 46 109 301 802 16 48 114 315 840 16 50 118 325 868 17 51 120 332 884 17 51 121 334 891 17 51 121 334 889 17 50 120 329 878 16 49 117 322 859 16 48 113 312 832 15 46 108 299 796 14 43 103 282 753 15 45 106 293 781 15 47 112 308 821 16 49 116 319 851 16 50 118 326 869 17 50 120 330 878 17 50 120 330 879 16 50 119 326 870 16 49 116 320 854 16 48 113 311 829 15 46 109 299 797 14 43 103 284 757 14 43 103 285 759 15 46 109 301 801 16 48 113 312 832 16 49 116 320 853 16 49 118 324 864 16 50 118 325 866 16 49 117 323 860 16 48 115 317 846 15 47 112 309 824 15 46 108 298 795 14 43 103 284 758 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Extended capacities as expansion and liquid injection valves The following tables provide the capacity of valves at different conditions considering 1.5 bar pressure drop through liquid line: Condensing temperature °C 60 55 50 45 40 35 30 25 Extended capacity kW R 22 15 10 5 0 17 51 123 337 900 16 50 119 328 876 16 48 114 314 838 15 45 107 295 787 13 41 98 270 719 12 36 86 237 632 10 29 70 194 516 7 20 47 130 347 17 52 126 345 921 17 51 123 339 903 16 50 119 327 873 16 47 113 311 830 15 44 106 290 774 13 40 96 264 703 11 35 83 229 611 9 28 67 184 491 6 18 43 117 312 18 53 128 351 936 17 52 126 346 923 17 51 123 337 899 16 49 118 324 864 15 46 111 306 817 14 43 103 284 757 13 39 93 256 682 11 33 80 220 587 9 26 63 173 461 5 15 37 101 269 18 54 129 355 946 18 53 128 352 938 17 52 125 345 919 17 51 121 334 890 16 48 116 319 850 15 45 109 300 799 14 42 100 276 735 12 37 90 246 656 10 32 76 209 557 8 24 58 160 426 4 12 29 80 214 20 15 10 EX48_35008_EN_R10.doc Valve Evaporating temperature °C -5 -10 -15 -20 -25 -30 -35 -40 -45 18 54 130 357 952 18 54 129 355 948 18 53 127 350 933 17 52 124 341 909 16 50 119 328 875 16 47 113 312 831 15 44 106 291 776 13 40 97 266 709 12 36 85 235 627 10 30 71 196 524 7 22 53 145 386 17 53 127 350 932 18 53 128 353 941 18 54 128 353 942 18 53 127 350 934 17 52 125 345 919 17 51 122 336 896 16 49 118 325 866 16 47 113 311 829 15 45 107 294 784 14 42 100 274 731 13 38 91 251 669 17 52 126 345 921 17 53 127 350 932 18 53 127 351 935 17 53 127 348 929 17 52 125 344 916 17 51 122 336 896 16 49 118 326 869 16 47 114 313 835 15 45 108 298 793 14 42 102 279 745 13 39 94 258 689 17 52 124 340 908 17 52 126 345 921 17 53 126 347 925 17 52 126 346 922 17 52 124 342 911 17 51 122 335 893 16 49 118 326 868 16 48 114 314 837 15 45 109 300 799 14 43 103 283 754 13 40 96 263 702 17 51 122 335 893 17 52 124 340 908 17 52 125 343 914 17 52 124 342 912 17 51 123 339 903 17 50 121 333 888 16 49 118 324 865 16 48 114 314 836 15 46 109 300 801 14 43 104 285 759 13 40 97 267 711 18 54 130 358 954 18 54 130 357 953 18 54 129 354 943 17 52 126 346 923 17 51 122 335 894 16 49 117 321 856 15 46 110 303 808 14 43 102 281 749 13 39 93 254 678 11 34 81 222 593 9 28 66 182 485 18 54 130 357 953 18 54 130 358 955 18 54 129 355 948 17 53 127 349 932 17 52 124 340 907 16 50 119 327 873 16 47 113 312 831 15 44 106 292 779 13 41 98 269 718 12 37 88 241 644 10 31 76 208 554 18 54 129 356 948 18 54 130 357 953 18 54 129 356 949 18 53 128 351 936 17 52 125 343 915 17 50 121 332 885 16 48 116 318 848 15 46 109 301 802 14 42 102 280 747 13 39 93 256 682 11 34 82 227 604 7 / 32 18 53 128 353 941 18 54 129 356 949 18 54 129 355 947 18 53 128 351 937 17 52 125 345 919 17 51 122 335 893 16 49 117 322 859 15 46 112 307 818 14 44 105 288 768 13 40 97 266 710 12 36 87 241 642 Type EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Extended capacities as expansion and liquid injection valves The following tables provide the capacity of valves at different conditions considering 1.5 bar pressure drop through liquid line: Condensing temperature °C 60 55 50 45 40 35 30 25 Extended capacity kW R 134a 15 10 5 0 13 39 93 255 679 12 38 91 249 663 12 36 87 238 636 11 34 81 223 595 10 31 74 202 539 9 27 63 173 463 7 20 49 133 356 3 10 23 63 169 13 39 94 257 686 13 39 92 253 676 12 38 90 246 655 12 36 85 234 623 11 33 79 217 578 10 30 71 194 517 8 25 60 164 436 6 18 44 121 322 2 5 12 34 90 13 39 94 258 688 13 39 93 256 683 13 38 91 250 668 12 37 88 241 642 11 35 83 227 606 10 32 76 209 556 9 28 67 184 492 8 23 55 152 406 5 16 38 105 281 13 39 94 257 686 13 39 94 257 685 13 39 92 253 675 12 38 90 246 655 12 36 85 234 625 11 34 80 219 584 10 30 73 199 531 9 26 63 173 462 7 21 51 139 370 4 13 32 87 231 20 15 10 EX48_35008_EN_R10.doc Valve Evaporating temperature °C -5 -10 -15 -20 -25 -30 -35 -40 -45 13 39 93 255 680 13 39 93 256 683 13 39 93 254 677 12 38 91 248 662 12 37 87 239 638 11 35 83 226 604 11 32 76 210 559 9 29 69 188 501 8 25 58 160 427 6 19 45 123 328 3 9 22 61 162 12 35 84 231 616 12 36 86 237 632 12 37 88 240 640 12 37 88 240 641 12 36 87 238 634 12 36 85 232 620 11 34 82 224 599 11 33 78 214 570 10 31 73 200 533 9 28 67 183 488 8 25 59 162 432 11 34 82 224 598 12 35 84 231 616 12 36 86 235 627 12 36 86 236 629 12 36 85 234 625 12 35 84 230 613 11 34 81 223 595 11 33 78 213 569 10 31 73 201 536 9 28 68 186 495 8 26 61 167 445 11 33 79 217 580 11 34 82 225 599 12 35 84 229 611 12 35 84 231 616 12 35 84 230 614 11 35 83 227 604 11 34 80 221 588 11 32 77 212 565 10 31 73 201 535 9 29 68 187 498 9 26 62 170 452 11 32 77 210 560 11 33 80 218 582 11 34 81 223 595 11 35 82 226 602 11 34 82 225 601 11 34 81 223 594 11 33 79 217 580 11 32 76 210 559 10 31 73 199 532 9 29 68 187 498 9 26 62 171 455 13 39 92 252 672 13 39 93 254 678 13 39 92 253 676 13 38 91 249 664 12 37 88 242 645 12 35 84 231 616 11 33 79 217 578 10 30 72 198 529 9 27 64 175 467 7 22 53 145 388 5 16 38 104 277 12 38 90 248 661 13 38 92 251 670 13 38 92 251 671 12 38 91 249 663 12 37 89 243 647 12 36 85 234 623 11 34 81 221 590 10 31 75 206 548 9 28 68 186 495 8 25 59 161 428 6 20 47 128 341 12 37 89 243 648 12 38 90 247 659 12 38 91 249 663 12 38 90 247 658 12 37 88 242 646 12 36 86 235 625 11 34 82 224 597 11 32 77 210 560 10 29 70 193 514 9 26 62 171 456 7 22 52 144 384 8 / 32 12 36 87 237 633 12 37 88 242 647 12 37 89 245 653 12 37 89 244 651 12 37 88 240 641 12 36 85 234 624 11 34 82 225 600 11 33 78 213 567 10 30 72 197 526 9 27 65 178 475 8 24 56 155 413 Type EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Extended capacities as expansion and liquid injection valves The following tables provide the capacity of valves at different conditions considering 1.5 bar pressure drop through liquid line: Condensing temperature °C 60 55 50 45 40 35 30 25 20 R 404A / R507 15 10 5 0 9 28 68 186 495 10 30 72 198 527 10 31 74 203 541 10 31 74 201 537 10 29 71 193 515 9 27 65 178 474 8 23 56 153 409 6 17 42 114 305 1 3 8 21 56 9 28 68 187 498 10 31 73 201 535 10 32 76 208 555 10 32 77 210 559 10 31 75 205 547 10 30 71 195 519 9 27 65 177 472 8 23 55 150 400 5 16 40 108 289 9 28 68 186 496 10 31 74 202 538 11 32 77 211 564 11 33 79 215 574 11 33 78 214 570 10 31 75 207 551 10 30 71 194 517 9 27 64 174 465 7 22 53 146 388 5 15 37 101 268 9 28 67 184 491 10 31 74 202 537 11 32 78 213 567 11 33 80 219 583 11 33 80 219 585 11 33 79 215 574 10 31 75 206 550 10 29 70 191 510 8 26 62 170 453 7 21 51 139 371 5 14 33 91 242 15 10 EX48_35008_EN_R10.doc Extended capacity kW Valve Evaporating temperature °C -5 -10 -15 -20 -25 -30 -35 -40 -45 9 28 66 181 482 10 30 73 200 533 11 32 78 213 567 11 33 80 220 587 11 34 81 223 594 11 34 81 221 590 11 33 78 215 573 10 31 74 204 543 9 28 68 187 499 8 25 60 164 437 7 20 48 131 350 8 23 56 153 407 9 27 64 176 470 10 30 71 194 518 10 32 76 208 553 11 33 79 217 578 11 34 81 223 594 11 34 82 225 600 11 34 82 224 597 11 33 80 219 585 11 32 77 212 564 10 31 73 201 535 7 22 53 145 387 8 26 62 169 451 9 29 69 188 501 10 31 74 202 539 11 32 78 213 567 11 33 80 219 585 11 34 81 223 593 11 34 81 223 593 11 33 80 220 585 11 32 78 213 569 10 31 75 204 544 7 21 50 137 366 8 25 59 162 432 9 28 66 181 484 10 30 72 196 524 10 32 76 208 553 11 33 79 215 573 11 33 80 219 584 11 34 80 220 587 11 33 80 218 582 11 33 78 214 569 10 31 75 206 548 6 20 47 129 344 8 23 56 154 411 9 27 64 174 465 9 29 69 190 506 10 31 74 202 538 11 32 77 210 560 11 33 79 215 573 11 33 79 217 579 11 33 79 216 576 11 32 78 213 566 10 31 75 206 549 9 27 65 177 471 10 30 72 197 525 11 32 77 211 562 11 33 80 220 586 11 34 82 225 598 11 34 82 225 599 11 34 81 221 588 11 32 78 213 566 10 30 73 200 532 9 28 66 181 484 8 24 57 156 417 9 26 63 172 458 10 29 70 193 514 10 32 76 208 555 11 33 80 219 582 11 34 82 225 598 11 34 83 226 603 11 34 82 224 598 11 33 80 218 582 10 32 76 208 555 10 29 71 194 516 9 26 64 174 464 8 25 61 166 443 9 29 69 188 501 10 31 75 204 545 11 33 79 216 575 11 34 81 223 595 11 34 83 226 604 11 34 83 226 603 11 34 81 222 592 11 33 78 214 571 10 31 74 202 540 9 28 68 186 496 9 / 32 8 24 58 160 425 9 28 67 182 486 10 30 73 200 532 11 32 78 212 566 11 34 81 221 588 11 34 82 225 600 11 34 83 226 603 11 34 82 224 596 11 33 80 218 580 10 32 76 208 555 10 30 71 195 519 Type EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Extended capacities as expansion and liquid injection valves The following tables provide the capacity of valves at different conditions considering 1.5 bar pressure drop through liquid line: Condensing temperature °C -10 -15 -20 -25 -30 -35 -45 17 53 127 16 50 119 15 45 109 13 40 96 11 33 78 7 22 53 -40 -50 18 55 132 17 52 125 16 48 117 14 44 106 13 38 92 10 30 73 6 19 46 -45 Condensing temperature °C 100 95 90 85 80 75 70 65 60 Extended capacity kW R 23 Evaporating temperature °C -55 19 56 135 18 54 130 17 51 122 15 47 113 14 42 101 12 36 86 9 28 67 5 15 37 EX48_35008_EN_R10.doc -60 19 57 138 18 55 133 17 53 127 16 49 118 15 45 108 13 40 96 11 33 80 8 25 60 -65 19 58 139 19 56 135 18 54 130 17 51 122 16 47 114 14 43 103 12 37 90 10 30 73 -70 19 58 140 19 57 137 18 55 132 17 52 125 16 49 117 15 45 108 13 40 96 11 34 82 -75 19 58 140 19 57 137 18 55 133 17 53 127 16 50 120 15 46 111 14 42 101 12 37 88 -80 19 58 140 19 57 137 18 55 134 18 53 128 17 51 122 16 47 114 14 43 104 13 39 93 -85 19 58 139 19 57 137 18 55 133 18 53 129 17 51 122 16 48 115 15 44 106 13 40 96 Type -90 19 57 138 19 57 136 18 55 133 18 53 128 17 51 123 16 48 116 15 45 108 13 41 98 -95 19 57 137 18 56 135 18 55 132 18 53 128 17 51 123 16 48 116 15 45 108 14 41 99 -100 18 56 135 18 55 134 18 54 131 17 53 127 17 51 122 16 48 116 15 45 108 14 41 100 Extended capacity kW R 124 30 7 22 53 8 24 57 8 25 61 9 26 63 9 27 64 9 27 64 9 26 62 8 25 60 8 23 56 Valve Valve Evaporating temperature °C 25 7 21 51 8 23 56 8 25 59 9 26 62 9 27 63 9 27 64 9 26 63 8 26 61 8 24 58 20 7 20 49 7 23 54 8 24 58 8 25 61 9 26 63 9 27 64 9 27 64 9 26 62 8 25 60 15 6 19 47 7 22 52 8 24 56 8 25 60 8 26 62 9 26 63 9 27 63 9 26 63 8 26 61 10 6 18 44 7 21 50 7 23 54 8 24 58 8 25 61 9 26 62 9 26 63 9 26 63 8 26 62 10 / 32 EX4 EX5 EX6 EX4 EX5 EX6 EX4 EX5 EX6 EX4 EX5 EX6 EX4 EX5 EX6 EX4 EX5 EX6 EX4 EX5 EX6 EX4 EX5 EX6 Type 5 6 17 42 7 20 47 7 22 52 8 23 56 8 25 59 8 25 61 9 26 62 9 26 62 8 26 62 0 5 16 39 6 19 45 7 21 50 7 23 54 8 24 57 8 25 60 8 25 61 8 26 62 8 26 61 EX4 EX5 EX6 EX4 EX5 EX6 EX4 EX5 EX6 EX4 EX5 EX6 EX4 EX5 EX6 EX4 EX5 EX6 EX4 EX5 EX6 EX4 EX5 EX6 EX4 EX5 EX6 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Extended capacities as expansion and liquid injection valves The following tables provide the capacity of valves at different conditions considering 1.5 bar pressure drop through liquid line: Condensing temperature °C 10 Extended capacity kW R 744 8 5 0 -5 -10 5 15 36 99 - 12 36 86 237 - 18 55 132 362 12 37 89 244 - 22 68 164 450 19 57 137 376 12 38 90 247 659 26 79 189 518 23 71 170 466 19 58 139 383 1023 12 37 89 245 654 5 0 -5 -10 -15 Evaporating temperature °C -15 -20 -25 -30 29 87 208 572 27 81 195 535 24 72 173 475 1267 19 59 140 385 1028 12 36 87 239 639 31 94 225 617 29 90 215 589 27 83 198 544 1452 24 73 174 477 1275 19 58 139 382 1021 11 35 84 229 613 -20 -25 -30 -35 -40 EX48_35008_EN_R10.doc 11 / 32 33 99 238 653 32 96 231 634 30 91 218 598 1598 27 83 199 547 1460 24 72 173 475 1269 19 57 137 376 1003 11 33 79 216 576 34 104 249 683 33 102 244 670 32 98 234 642 1715 30 91 219 601 1604 27 83 198 544 1452 23 71 171 468 1250 18 56 133 365 974 10 30 72 198 528 Valve Type -35 -40 -45 -50 35 108 257 707 35 106 254 699 34 103 247 677 1809 32 98 234 644 1718 30 91 217 597 1594 27 82 195 536 1431 23 70 166 457 1220 18 53 128 350 935 9 27 64 175 466 36 110 264 726 36 110 263 722 35 107 257 705 1883 34 103 247 678 1809 32 97 233 639 1705 29 89 214 588 1570 26 80 191 523 1398 22 67 161 442 1179 17 51 121 332 887 7 22 53 145 386 37 113 269 740 37 113 269 739 36 111 265 727 1942 35 107 257 705 1881 34 102 245 671 1793 31 96 229 628 1677 29 87 209 574 1532 25 77 185 507 1353 21 64 154 423 1129 16 47 113 310 828 5 16 37 103 275 38 114 273 750 38 115 274 753 37 113 271 744 1987 36 110 264 725 1937 35 106 254 697 1861 33 100 240 660 1761 31 93 223 613 1636 28 85 202 556 1483 24 74 177 486 1298 20 61 146 400 1068 14 43 103 284 759 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 22.07.2008 Alco Controls EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves EX4/EX5/EX6/EX7/EX8 Nominal and extended capacities as hot gas bypass regulator Nominal Capacities, kW Valve Type Kv, m3/h EX4 0.21 EX5 0.68 EX6 1.57 EX7 5.58 EX8 16.95 R 22/R 407C 4.9 16 37 131 399 R 134a 3.4 11 26 92 278 R 404A/R 507 4.6 15 35 126 382 The nominal capacity (Qn) is based on the following conditions: Refrigerant Evaporating temperature Condensing temperature R 22, R 134a, R 404A, R 507 +4°C +38°C R 407C +4°C dew point +38°C bubble / +43°C dew point Subcooling 1K 1K Remarks: Note 1: Bi-flow versions are not released for hot gas bypass applications. Note 2: EX4, EX5, EX6, EX7 and EX8 must be installed with motor downward in hot gas line applications. This insures the valve life expectancy. Extended capacities, kW Liquid / Condensing temperature °C 60 bubble point for all refrigerants (64 dew point for R407C) 50 bubble point for all refrigerants (54 dew point for R407C) 40 bubble point for all refrigerants (45 dew point for R407C) 30 bubble point for all refrigerants (35 dew point for R407C) EX48_35008_EN_R10.doc R 22 / R 407C R 134a R 404A / R 507 Valve type 7 23 54 191 581 6.1 20 46 163 495 4.9 16 38 136 414 4.3 14 32 112 340 4.9 16 38 135 411 4.3 14 32 115 348 3.7 12 27 95 289 2.8 9 22 78 236 5.8 19 45 161 488 5.5 18 41 147 447 4.9 16 36 130 394 4 13 31 111 336 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 EX4 EX5 EX6 EX7 EX8 12 / 32 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls EX6/EX7/EX8 Nominal and extended capacities as suction pressure regulator (evaporator or crankcase) Nominal Capacities, kW Valve Type Kv, m3/h EX6 1.57 EX7 5.58 EX8 16.95 R 407C 3.9 14 42 R 22 4.1 15 45 R 134a 3.1 11 34 The nominal capacity (Qn) is based on the following conditions: Refrigerant Evaporating temperature Condensing temperature +4°C +38°C R 22, R 134a, R 404A +4°C dew point +38°C bubble / +43°C dew point R 407C R 404A 3.5 13 38 Subcooling 1K 1K Pressure Drop 0.15 bar 0.15 bar Remarks: Bi-flow versions are not released for use below -40°C. EX6, EX7 and EX8 must be installed with motor downward in suction line applications. This insures the valve life expectancy. Multiply above nominal capacities by following factors to obtain capacities at different pressure drops: ∆P, bar Correction factor 0.10 0.82 0.15 1.00 0.20 1.15 0.30 1.41 Example: EX6 provides 3.5 kW at 0.15 bar pressure drop with R404A: 3.5*1.41 = 4.9 kW capacity at 0.3 bar pressure drop. Extended capacities in kW, suction pressure regulator duty Condensing R 22 temperature °C 60 50 40 30 20 10 5 4 13 41 4 15 45 5 16 49 5 17 53 5 19 56 3 12 37 4 13 41 4 15 45 4 16 48 5 17 52 Condensing temperature Dew point °C Bubble point °C 64 60 54 50 45 40 35 30 26 20 EX48_35008_EN_R10.doc Extended capacity kW Valve Evaporating temperature °C 0 -10 -20 type 3 11 34 3 12 37 4 13 41 4 14 44 4 15 47 R 407C 10 3 12 36 4 14 41 4 15 46 5 17 51 5 18 55 3 9 27 3 10 30 3 11 33 3 12 36 4 13 39 2 7 22 2 8 24 2 9 27 3 9 29 3 10 31 -30 -40 2 5 17 2 6 19 2 7 21 2 7 22 2 8 24 1 4 12 1 5 14 1 5 15 2 5 16 2 6 18 Valve Extended capacity kW Evaporating temperature °C 5 0 -10 3 11 33 3 12 37 4 14 42 4 15 46 5 16 50 3 10 29 3 11 34 3 12 38 4 14 41 4 15 45 2 8 23 2 9 27 3 10 30 3 11 33 3 12 36 13 / 32 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 type -20 2 6 18 2 7 21 2 8 23 2 9 26 3 9 28 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Extended capacities in kW, suction pressure regulator duty Condensing temperature R 134a °C 10 60 50 40 30 20 Condensing temperature °C 60 50 40 30 20 3 10 30 3 11 34 3 12 38 4 14 41 4 15 45 Extended capacity kW Valve Evaporating temperature °C 5 0 -10 type 2 9 27 3 10 30 3 11 34 3 12 37 4 13 40 2 8 24 2 9 27 3 10 30 3 11 33 3 12 36 5 3 9 29 3 12 36 4 14 42 4 16 48 5 17 53 2 8 26 3 11 32 3 12 38 4 14 43 4 16 48 EX48_35008_EN_R10.doc -20 1 4 13 1 5 15 2 6 17 2 6 19 2 7 21 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 Extended capacity kW Valve Evaporating temperature °C 0 -10 -20 type R 404A / R 507 10 2 6 18 2 7 21 2 8 23 2 8 26 3 9 28 2 8 23 3 9 29 3 11 34 4 13 39 4 14 44 2 6 18 2 7 23 3 9 27 3 10 31 3 12 35 1 4 13 2 6 18 2 7 21 2 8 25 3 9 28 14 / 32 -30 -40 1 3 10 1 4 13 1 5 16 2 6 19 2 7 21 1 2 7 1 3 9 1 4 12 1 5 14 1 5 16 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls EX5/EX6/EX7/EX8 Nominal and extended capacities as condensing pressure regulator and liquid duty Nominal Capacities, kW Valve Type Kv, m3/h EX5 0.68 EX6 1.57 EX7 5.58 EX8 16.95 R 407C 18 43 153 463 R 22 20 46 162 491 R 134a 18 42 151 458 The nominal capacity (Qn) is based on the following conditions: Refrigerant Evaporating temperature Condensing temperature +4°C +38°C R 22, R 134a, R 404A +4°C dew point +38°C bubble / +43°C dew point R 407C R 404A 13 30 106 323 Subcooling 1K 1K Pressure Drop 0.35 bar 0.35 bar Multiply above nominal capacities by following factors to obtain capacities at different pressure drops. ∆P, bar Correction factor 0.15 0.65 Extended capacities, kW Condensing R temperature °C 10 15 36 128 387 17 41 144 439 19 45 161 488 21 50 177 536 23 54 192 584 60 50 40 30 20 Condensing temperature °C 60 50 40 30 20 0.20 0.76 22 0 15 35 124 377 17 40 141 428 19 44 157 477 21 49 173 525 23 53 188 572 0.35 1.00 Extended capacity kW Evaporating temperature °C -10 -20 15 34 120 365 16 36 129 391 19 43 153 465 20 48 169 513 22 52 184 560 14 33 116 353 17 39 137 416 18 42 149 453 20 46 165 500 22 51 180 547 Extended capacity kW -30 -40 14 32 112 341 16 36 129 391 17 41 145 439 19 45 160 486 21 49 175 533 13 30 108 328 15 35 124 377 17 39 140 426 19 44 156 472 21 48 171 519 EX5 EX6 EX7 EX8 EX5 EX6 EX7 EX8 EX5 EX6 EX7 EX8 EX5 EX6 EX7 EX8 EX5 EX6 EX7 EX8 Valve type R 134a Evaporating temperature °C 10 0 -10 -20 14 32 115 350 16 37 133 405 18 42 151 458 20 47 168 512 22 52 186 564 13 31 109 332 15 36 127 387 18 41 145 440 20 46 162 493 22 51 180 546 13 29 104 315 15 34 121 369 17 39 139 422 19 44 156 474 21 49 173 526 12 27 98 296 14 32 115 350 16 37 133 403 18 42 150 455 20 47 167 507 EX48_35008_EN_R10.doc Valve type 15 / 32 EX5 EX6 EX7 EX8 EX5 EX6 EX7 EX8 EX5 EX6 EX7 EX8 EX5 EX6 EX7 EX8 EX5 EX6 EX7 EX8 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Extended capacities in kW, condensing pressure and liquid regulator Extended capacity kW Condensing R 404A / R507 Evaporating temperature °C temperature °C 10 0 -10 -20 -30 8 19 66 202 11 24 87 264 13 30 106 321 15 35 123 375 17 40 141 427 60 50 40 30 20 8 17 62 189 10 23 82 250 12 28 101 306 14 33 119 360 16 38 136 412 Bubble point °C °C 64 60 54 50 45 40 35 30 26 20 EX48_35008_EN_R10.doc 6 15 53 160 9 20 73 220 11 26 91 276 13 30 108 329 15 35 125 380 6 13 48 146 8 19 67 205 10 24 85 260 12 29 103 312 14 34 120 363 Extended capacity kW Condensing temperature Dew point 7 16 58 175 9 22 78 236 12 27 96 291 14 32 114 345 16 37 131 397 0 13 30 108 327 15 36 128 388 18 41 147 446 20 47 166 503 22 52 184 558 -10 12 29 103 313 15 35 123 373 17 40 142 431 19 45 160 487 22 50 179 543 16 / 32 -40 5 12 43 130 8 17 62 189 10 23 80 243 12 27 97 295 14 32 114 346 EX5 EX6 EX7 EX8 EX5 EX6 EX7 EX8 EX5 EX6 EX7 EX8 EX5 EX6 EX7 EX8 EX5 EX6 EX7 EX8 Valve R 407C Evaporating temperature °C 10 14 32 112 340 16 37 132 402 18 43 152 460 21 48 170 517 23 53 189 573 Valve type type -20 12 28 98 298 14 33 118 358 17 38 137 415 19 44 155 471 21 49 173 526 EX5 EX6 EX7 EX8 EX5 EX6 EX7 EX8 EX5 EX6 EX7 EX8 EX5 EX6 EX7 EX8 EX5 EX6 EX7 EX8 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls EX6/EX7/EX8 Nominal and extended capacities for hot gas flow such as heat reclaim application Nominal Capacities, kW Valve Type Kv, m3/h EX6 1.57 EX7 5.58 EX8 16.95 R 22 / R 407C 11 39 119 R 134a 9 33 101 R 404° / R 507 10 36 108 The nominal capacity (Qn) is based on the following conditions: Evaporating Refrigerant Condensing temperature temperature +4°C +38°C R 22, R 134a, R 404A, R 507, R410A +4°C dew point +38°C bubble / +43°C dew point R 407C R 410A 13 47 144 Subcooling 1K 1K Pressure Drop 0.5 bar 0.5 bar Isentropic Efficiency 80% 80% Remarks: Bi-flow versions are not released for hot gas flow applications. EX6, EX7 and EX8 must be installed with motor downward in suction line applications. This insures the valve life expectancy. Extended capacities, kW Condensing Pressure temperature °C drop bar 0.1 60 0.5 1 0,1 50 0.5 1 0.1 40 0.5 1 0.1 30 0.5 1 EX48_35008_EN_R10.doc Extended capacity kW R 404A 15 10 5 0 4 15 45 9 32 99 13 45 137 5 16 49 10 35 107 14 49 149 5 16 50 10 36 109 14 50 152 5 16 49 10 35 108 14 49 149 4 14 43 9 31 95 12 44 132 4 16 47 10 34 104 13 48 145 4 16 49 10 35 107 14 49 148 4 16 48 10 35 105 13 48 146 4 14 42 8 30 92 12 42 127 4 15 46 9 33 101 13 46 141 4 16 47 10 34 104 13 48 144 4 15 47 10 34 103 13 47 142 4 13 40 8 29 88 11 40 122 4 15 44 9 32 98 13 45 136 4 15 46 9 33 101 13 46 140 4 15 46 9 33 101 13 46 139 Valve Evaporating temperature °C -5 -10 -15 -20 -25 4 13 38 8 28 84 11 39 117 4 14 43 9 31 95 12 43 131 4 15 45 9 32 98 13 45 136 4 15 45 9 32 98 13 45 135 3 12 36 7 26 80 10 37 112 4 14 41 8 30 91 12 42 127 4 14 43 9 31 95 12 44 132 4 14 43 9 31 95 12 43 132 17 / 32 3 11 35 7 25 76 10 35 106 4 13 40 8 29 88 11 40 122 4 14 42 9 30 92 12 42 128 4 14 42 9 31 93 12 42 128 3 11 33 7 24 72 9 33 101 4 13 38 8 28 84 11 38 117 4 13 40 8 29 89 11 41 124 4 13 41 8 30 90 12 41 124 3 10 31 6 22 68 9 31 95 3 12 36 7 26 80 10 37 112 4 13 39 8 28 86 11 39 119 4 13 40 8 29 87 11 40 120 Type -30 -35 -40 -45 3 10 29 6 21 64 8 29 89 3 11 35 7 25 77 10 35 107 3 12 37 8 27 83 11 38 115 4 13 38 8 28 84 11 38 117 3 9 27 6 20 60 8 27 84 3 11 33 7 24 73 9 33 102 3 12 36 7 26 79 10 36 110 3 12 37 8 27 81 10 37 113 2 8 25 5 18 56 7 26 78 3 10 31 6 23 69 9 32 96 3 11 34 7 25 76 10 35 105 3 12 36 7 26 78 10 36 109 2 8 23 5 17 52 7 24 72 3 10 30 6 22 65 8 30 91 3 11 33 7 24 73 9 33 101 3 11 34 7 25 76 10 34 104 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Extended capacities kW, hot gas flow such as heat reclaim applications Condensing Pressure temperature °C drop bar 40 Type 5 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 5 16 50 5 16 49 4 16 47 4 15 46 4 15 44 4 14 43 4 14 41 4 13 40 4 13 38 3 12 37 3 12 35 3 11 33 3 10 32 10 36 110 14 50 152 10 35 107 14 49 148 10 34 104 13 47 144 9 33 101 13 46 139 9 32 97 12 44 135 9 31 94 12 43 130 8 30 91 12 41 126 8 29 87 11 40 121 8 28 84 11 38 116 7 26 80 10 37 112 7 25 77 10 35 107 7 24 74 9 34 102 6 23 70 9 32 97 0,1 5 16 49 4 16 48 4 15 47 4 15 45 4 14 44 4 14 43 4 14 41 4 13 40 4 13 39 3 12 37 3 12 36 3 11 35 3 11 33 0.5 10 35 108 10 35 105 9 34 102 9 33 99 9 32 97 9 31 94 8 30 91 8 29 88 8 28 85 8 27 82 7 26 79 7 25 76 7 24 73 1 14 49 148 13 48 145 13 46 141 13 45 137 12 44 133 12 43 129 12 41 125 11 40 121 11 39 117 10 37 113 10 36 109 10 34 105 9 33 100 0.1 4 16 47 4 15 46 4 15 45 4 14 44 4 14 43 4 14 42 4 13 40 4 13 39 4 13 38 3 12 37 3 12 36 3 11 34 3 11 33 0.5 10 34 103 9 33 100 9 32 98 9 32 96 9 31 93 8 30 91 8 29 88 8 28 86 8 27 83 7 26 80 7 26 78 7 25 75 7 24 73 13 46 141 4 15 44 13 45 138 4 14 43 12 44 134 4 14 42 12 43 131 4 14 42 12 42 128 4 13 41 12 41 124 4 13 40 11 40 121 4 13 39 11 39 117 3 12 38 11 38 114 3 12 37 10 36 110 3 12 35 10 35 107 3 11 34 10 34 103 3 11 33 9 33 100 3 11 32 9 32 96 12 43 130 9 31 94 12 42 128 9 30 92 12 41 125 8 30 90 11 40 122 8 29 88 11 39 119 8 28 86 11 38 117 8 28 84 11 37 114 8 27 81 10 36 111 7 26 79 10 35 108 7 25 77 10 34 105 7 25 75 9 33 102 7 24 72 9 32 98 6 23 70 9 31 95 0.5 1 0.1 30 Evaporating temperature °C 10 1 50 Valve 15 0.1 60 Extended capacity kW R 134a 0.5 1 EX48_35008_EN_R10.doc 18 / 32 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Extended capacities kW, hot gas flow such as heat reclaim applications Condensing Pressure temperature °C drop bar Type 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 6 20 59 12 43 131 5 19 58 12 42 129 5 19 57 12 41 126 5 18 55 11 40 123 5 18 54 11 39 119 5 17 53 11 38 116 5 17 51 10 37 113 5 16 50 10 36 110 4 16 48 10 35 107 4 15 47 10 34 103 4 15 45 9 33 100 4 14 44 9 32 97 4 14 42 9 31 94 17 60 183 5 19 58 17 59 179 5 19 57 16 58 175 5 18 56 16 56 171 5 18 54 15 55 167 5 17 53 15 53 162 5 17 52 15 52 158 5 17 51 14 51 154 5 16 49 14 49 149 4 16 48 13 48 145 4 15 47 13 46 140 4 15 45 13 45 135 4 14 44 12 43 131 4 14 42 12 42 128 17 59 178 12 41 126 16 57 175 11 40 123 16 56 171 11 40 120 15 55 167 11 39 117 15 54 163 11 38 115 15 52 159 10 37 112 14 51 155 10 36 109 14 50 151 10 35 106 14 49 147 10 34 103 13 47 143 9 33 100 13 46 139 9 32 97 13 44 135 9 31 94 12 43 131 5 18 56 11 40 123 5 18 55 11 40 120 5 18 54 11 39 118 5 17 52 11 38 115 5 17 51 10 37 113 5 16 50 10 36 110 5 16 49 10 35 108 4 16 48 10 35 105 4 15 47 9 34 103 4 15 45 9 33 100 4 15 44 9 32 97 4 14 43 9 31 94 4 14 42 8 30 92 1 16 56 170 15 55 167 15 54 163 15 53 160 14 52 157 14 50 153 14 49 149 14 48 146 13 47 142 13 46 139 12 44 135 12 43 131 12 42 127 0.1 5 17 53 5 17 52 5 17 51 5 16 50 4 16 49 4 16 48 4 15 46 4 15 45 4 15 44 4 14 43 4 14 42 4 14 41 4 13 40 0.5 11 38 115 10 37 113 10 37 111 10 36 109 10 35 107 10 34 104 9 34 102 9 33 100 9 32 97 9 31 95 9 30 93 8 30 90 8 29 88 1 15 52 159 14 51 156 14 50 153 14 49 150 14 48 147 13 47 144 13 46 141 13 45 138 12 44 134 12 43 131 12 42 128 12 41 124 11 40 121 0,1 0.5 1 0.1 0.5 30 Evaporating temperature °C 5 1 40 Valve 10 0.5 50 Extended capacity kW 15 0.1 60 R 22 / R 407C* EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 *) Condensing temperatures R 407C: The relation between bubble points and dew points is as follows: Bubble point °C Dew point °C 60 64 50 54 40 45 30 35 EX48_35008_EN_R10.doc 19 / 32 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Extended capacities kW, hot gas flow such as heat reclaim applications Condensing Pressure temperature °C drop bar 40 Type 10 5 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 6 21 63 6 20 62 6 20 60 5 19 58 5 19 57 5 18 55 5 18 53 5 17 52 5 16 50 4 16 48 4 15 46 4 15 44 13 47 143 19 66 200 13 46 140 18 64 196 13 45 137 18 63 191 12 44 133 17 61 186 12 43 130 17 60 182 12 41 126 16 58 177 11 40 122 16 56 171 11 39 118 15 55 166 11 38 115 15 53 161 10 36 111 14 51 155 10 35 107 14 49 150 10 34 103 13 47 144 9 32 99 13 46 138 0,1 6 22 67 6 22 66 6 21 65 6 21 63 6 20 62 6 20 60 5 19 59 5 19 57 5 18 55 5 18 54 5 17 52 5 17 50 4 16 48 0.5 14 49 149 14 48 146 13 47 143 13 46 140 13 45 137 12 44 133 12 43 130 12 42 126 11 40 123 11 39 119 11 38 115 10 37 111 10 35 108 1 19 69 209 19 67 204 19 66 200 18 64 196 18 63 191 17 61 186 17 60 182 16 58 177 16 57 172 15 55 167 15 53 161 14 51 156 14 50 151 0.1 6 22 67 6 22 66 6 21 65 6 21 63 6 20 62 6 20 60 5 19 59 5 19 58 5 18 56 5 18 54 5 17 53 5 17 51 5 16 50 0.5 14 49 148 13 48 146 13 47 143 13 46 140 13 45 137 12 44 134 12 43 131 12 42 127 11 41 124 11 40 121 11 39 117 11 37 114 10 36 110 19 68 207 6 21 65 19 67 203 6 21 64 18 66 199 6 21 63 18 64 195 6 20 61 18 63 191 6 20 60 17 61 187 5 19 59 17 60 182 5 19 58 16 59 178 5 19 56 16 57 173 5 18 55 16 55 168 5 18 53 15 54 164 5 17 52 15 52 159 5 17 51 14 51 154 5 16 49 13 47 143 18 65 199 13 46 141 18 64 195 13 45 138 18 63 192 13 45 135 17 62 188 12 44 133 17 61 185 12 43 130 17 60 181 12 42 127 16 58 177 12 41 124 16 57 173 11 40 121 16 56 169 11 39 118 15 54 165 11 38 115 15 53 160 10 37 112 14 51 156 10 36 109 14 50 152 0.5 1 0.1 30 Valve 6 21 64 1 50 Extended capacity kW Evaporating temperature °C 15 0.1 60 R 410A 0.5 1 EX48_35008_EN_R10.doc 20 / 32 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 EX6 EX7 EX8 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Application of control valves in systems The following schematics show the arrangement of integrated valves for different applications. Legends: TC Pump Thermo Expansion valve Compressor Condenser/Evaporator P Pressure transmitter T Temperature sensor Flow direction Check valve Plate heat exchanger Sight glass Liquid Receiver Solenoid valve Suction accumulator Four way reversing valve Filter dryer Overview applications: Application 1: Expansion valve in cooling system Application 2: Bi-Flow expansion valve in heat pump (except EX8) Application 3: Expansion valve in heat pump (one valve) Application 4: Expansion valve in heat pump (two valves) Application 5: Expansion valve as liquid injection valve for desuperheating Application 6: Expansion valve as liquid injection valve for subcooling Application 7: Capacity control by means of hot gas bypass Application 8: Capacity control by means of suction pressure throttling Application 9: Crankcase pressure control Application 10: Head pressure control Application 11: Liquid level control EX48_35008_EN_R10.doc 21 / 32 page 22 22 23 23 24 24 25 25 26 26 27 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Application 1: Expansion valve in cooling system 2 EC3-X33 1 (1) = Expansion Valve (2) = Superheat controller EC3-X33 Application 2: Bi-Flow expansion valve in heat pump (except EX8) 2 EC3-X33 1 (1) = Bi-Flow Expansion Valve (2) = Superheat controller EC3-X33 EX48_35008_EN_R10.doc 22 / 32 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Application 3: Expansion valve in heat pump (one valve) 2 EC3-X33 1 (1) = Expansion Valve (2) = Superheat controller EC3-X33 Application 4: Expansion valve in heat pump (two valves) 1 1 (1) = Expansion Valve, heating mode (2) = Expansion Valve, cooling mode EX48_35008_EN_R10.doc 23 / 32 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Application 5: Expansion valve as liquid injection valve for desuperheating 4-20mA/0-10V 1 T 2 3 TC (1) = Temperature Controller (2) = Stepper motor driver EXD-U00 (3) = Electrical Control Valve Application 6: Expansion valve as liquid injection valve for subcooling 4-20mA/0-10V 1 2 3 T TC (1) = Temperature Controller (2) = Stepper motor driver EXD-U00 (3) = Electrical Control Valve EX48_35008_EN_R10.doc 24 / 32 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Application 7: Capacity control by means of hot gas bypass 2 3 4-20mA/0-10V 5 1 T TC 4 Remarks: (1) = Temperature Controller (2) = Check Valve: It is important to install a check valve just after T-connection as shown. Check valve will not allow return of liquid refrigerant from condenser through electrical control valve in to the evaporator during power interruption to system. (3) = Hot gas bypass valve must be installed with motor downward. This insures the valve life expectancy. (4) = Liquid Distributor must be selected properly for hot gas mass flow. (5) = Stepper motor driver EXD-U00 Application 8: Capacity control by means of suction pressure throttling Remarks: (1) = Temperature Controller (2) = Evaporator temperature regulator. EX6, EX7 and EX8 must be installed with motor downward in suction line applications. This insures the valve life expectancy. EX48_35008_EN_R10.doc (3) This application may require additional liquid injection to suction line for desuperheating of compressor by means of suction line superheat control or discharge line temperature control. Please consult Alco Controls for more details. (4) = Stepper motor driver EXD-U00 25 / 32 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Application 9: Crankcase pressure control Remarks: (1) = Pressure Controller (2) = Crankcase pressure regulator. ECVs must be installed with motor downward in suction line applications. This insures the valve life expectancy. (3) = Stepper motor driver EXD-U00 Application 10: Head pressure control P 2 1 3 4-20mA/0-10V TC (1) = Pressure Controller (2) = Condensing pressure regulator (3) = Stepper motor driver EXD-U00 EX48_35008_EN_R10.doc 26 / 32 22.07.2008 Alco Controls EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Application 11: Liquid level control (1) = Level Controller (2) = Liquid level sensor (3) = Stepper motor driver EXD-U00 Note: ECVs are not released for use with ammonia. EX48_35008_EN_R10.doc 27 / 32 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Driver and controller In contrary to thermo-expansion and regulator valves, stepper motor driven valves are not self operated actuators and require: a stepper motor driver which generates the digital pulse sequence needed to move the stepper motor in clockwise or counter clockwise direction an algorithm which determines the opening of the valve as a function of system parameters and conditions. Alco Controls offers several solutions for this task: EC3-X33 Superheat controller as stand alone for all applications and EC3-X32 Superheat controller for use in TCP/IP networks. The modules contain all required algorithms for full operation of ALCO ECVs. For further details please refer to EC3X33 or EC3X32 technical data sheet. EC3-33x Cold Room Controller is a digital temperature controller primary for refrigeration applications such as cold rooms. It features temperature control, superheat control and defrost, compressor and fan management where applicable. For further details please refer to EC33x technical data sheet. The following information is for those customers who want to develop their own driver/controller/algorithms: Function 1) Motor A 2-phase bipolar stepper motor drives the EX4/5/6/7/8. This motor follows the basic operating characteristics of any stepper motor i.e. the motor will be held in position unless current pulses from a driver board initiate rotation in either direction. The direction of the rotation depends on the phase relationship of the current pulses, the amount of rotation is dependent on the number of pulses. One pulse will drive the motor one step i.e. the rotor will move by α=1.8°. Successive pulses will lead to continuous rotation. The drive shaft of the rotor is connected to a spindle which transforms the rotation into linear motion of the valve slide. 1α 0 2α 3α EXD-U Universal driver is a stepper motor driver which uses an analogue input signal to define the valve opening. It enables the operation of EX4/EX5/EX6/EX7/EX8 as: • Electronic expansion valve • Capacity control by means of hot gas bypass or evaporating pressure regulator • Crankcase pressure regulator • Condenser pressure regulator • Liquid level actuator • Liquid injection valve The input signal for the driver module can be 4…20mA or 0…10V. The output pulses provide the proportional opening/closing of EX4/EX5/EX6/EX7/EX8 and consequently the control of liquid or vapour refrigerant mass flow. The universal driver module can be connected to any controller which provides the analogue signal. This gives system manufacturers the extreme flexibility to use any desired controller in conjunction with the universal driver module to achieve different functionality. For further details please refer to EXD-U technical data sheet. The patented valve control module VCM is a hybrid integrated circuit, which provides the superheat algorithm and the stepper motor driver to those customers, who want to integrate the valve control into their own system controller. This solution is mainly for OEMs having serial mass production systems. 2) Valve The gate type valve is optimised to provide a wide range of capacity with a linear relation between flow and positioning of the valve (capacity vs. number of steps). Slide and ports are made from ceramic for precise flow characteristics, high resolution and infinite life. The compliant slide eliminates undesirable horizontal forces caused by differential pressure (across the valve) to the cage assembly and shaft of stepper motor. The internal design of the EX4/5/6/7/8 is patented. Total valve travel is 750 full steps for EX4/5/6, 1600 steps for EX7 and 2600 steps for EX8. A mechanical stop in the fully closed position of the valve acts as reference point. The controller is reset by driving the valve towards the fully closed position against the mechanical stop. By overdriving the valve i.e. applying more than the full number of steps, it can be assured that the reference point is correct. Pulse 1 2 3 M Time closed Angular rotation (cross section of shaft) EX48_35008_EN_R10.doc 28 / 32 M open 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls 4 8 10 9 1 7 6 5 3) Driving of stepper motor There are many different options to drive stepper motors like the one used in the EX4/5/6/7/8. Alco Controls stepper motors need a driver board with chopper drive function (constant current), an interface and a controller. Chopper drive (constant current) The stepper motor of EX4/5/6/7/8 is a bipolar, 2-phase permanent-magnet motor and operates with constant DC current in each phase. A driver board with chopper drive function feeds a DC current as indicated below to the windings of the stepper motor. Time in ms Current in A 0,5 2 6 3 0,0 0 1 2 3 4 5 6 7 8 9 10 Stainless steel body Stepper motor Electrical connector Cage assembly Shaft Welding and/or brazing Ceramic inlet port Ceramic slide Ceramic outlet port Bearing EX48_35008_EN_R10.doc 0,002 0,004 0,006 0,008 0,01 0,012 0,014 0,016 0,018 0,02 -0,5 4) Design of customised driver board A suitable driver board must be selected according to the electrical data of the stepper motor and based on the following requirements: • Electrical output (four-stage switching sequence, see next page) • Stepping rate: 500Hz for EX4/5/6/7/8 • Chopper function, current: 29 / 32 Current EX4/5/6 EX7 EX8 Operating 500 mA 750 mA 800 mA Holding 100 mA 250 mA 500 mA 22.07.2008 EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Alco Controls Sequence for driving of stepper motor and valve Direction Valve Reverse direction Number of steps Identification code of pins for electrical connections to third party drivers/controllers A B C Current direction D + - + - Valve Step 1 is is Step 2 - + + - opening closing Step 3 - + - + Step 4 + - - + Remark ↓ ↓ The sequence is repeated from step 5 to 8 similar to step 1 to 4 Step 5 + - + - Step 6 - + + - Step 7 - + - + Step 8 + - - + Remark The sequence is repeated from step 9 to 12 similar to step 1 to 4 ↓ ↓ EX4/EX5/EX6/EX7/EX8 identification code of pins for electrical connection to third party drivers/controllers M12 plug and cable assembly (EX5-xxx) for EX4/EX5/EX6/EX7/EX8 Cable, wire colour A B C D EX48_35008_EN_R10.doc White Black Blue Brown 30 / 32 22.07.2008 Alco Controls EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Technical data CE marking EX4/EX5/EX6: EX7/EX8: Compatibility (not released for use with inflammable refrigerants) MOPD (maximum operating pressure differential) Max. working pressure, PS Ambient temperature Storage temperature Medium temperature range Bi-flow version: Uni-flow version Salt spray test Humidity Connections not required required, Cat I, Module A HCFCs, HFCs, CO2 Mineral and POE lubricants EX4/EX5/EX6/EX7: 35 bar EX8: 30 bar 45 bar -40 to +55°C -40 to +70°C TS: -40 to +80°C TS: -50 to +100°C non-corrosion stainless steel body 5 to 95% r.H. ODF stainless steel fittings Protection accordance to IEC 529, DIN 40050 IP67 with Alco supplied cable connector assembly Vibration for non-connected and fastened valve 4g (0 to 1000 Hz, 1 octave /min.) Shock Net weight (kg) 20g at 11 ms 80g at 1 ms 0.5 kg (EX4), 0.52 kg (EX5), 0.60 kg (EX6), 1.1 kg (EX7), 1.5 kg (EX8) External leakage ≤ 3 gram / year Seat leakage Positive shut-off better than solenoid valves Accessories See table on page 2 Package and delivery (individual) without electrical connector EX4/EX5/EX6: 30 mH ± 25% EX7: 20 mH ± 25% EX8: 22 mH ± 25% 2 phase full step Electrical data Stepper motor type Bi-polar, phase current by chopper control (constant current) Phase inductance Electrical connection Reccom. driver supply voltg. 4 pin terminal via plug 24 VDC (nominal) Step mode Step angle Driver supply voltage range 18 … 36 VDC Total number of steps Phase current, operating EX4/EX5/EX6: 500mA max, -10% EX7: 750mA ±10% EX8: 800mA ±10% EX4/EX5/EX6: 100mA EX7: 250mA EX8: 500mA Stepping rate EX4/EX5/EX6: 3.5W EX7/EX8: 5W Full travel time Holding current Nominal input power per phase Winding resistance per phase Reference position EX48_35008_EN_R10.doc 31 / 32 1.8° per step ± 8% EX4/EX5/EX6: 750 full steps EX7: 1600 full steps EX8: 2600 full steps 500Hz EX4/EX5/EX6: 13Ohm ±10% EX7: 8Ohm ±10% EX8: 6Ohm ±10% EX4/EX5/EX6: 1.5 seconds EX7: 3.2 seconds EX8: 5.2 seconds Mechanical stop at fully close position 22.07.2008 Alco Controls EX4 / EX5 / EX6 / EX7 / EX8 Electrical Control Valves Dimensions EX4 / EX5 / EX6 / EX7 Dimensions EX8 Valve Type Ø A x Ø F (ODF) B C D E H1 H2 EX4-I21 3/8" x 5/8" 8 45 55 11 113 25 EX4-M21 10 x 16 mm 8 45 55 11 113 25 EX4-U31 16 x 16 mm (5/8" x 5/8") 11 55 55 11 113 25 EX5-U21 5/8" x 7/8" (16 x 22 mm) 11 55 65 16 113 25 EX5-U31 7/8" x 7/8" (22 x 22 mm) 16 65 65 16 113 25 EX6-I21 7/8" x 1-1/8" 16 65 75 19 113 25 EX6-M21 22 x 28 mm 16 65 75 19 113 25 EX6-I31 1-1/8" x 1-1/8" 19 75 75 19 113 25 EX6-M31 28 x 28 mm 19 75 75 19 113 25 EX7-I21 1-1/8" x 1-3/8" 20 77.5 82.5 23 157 42 EX7-M21 28 x 35 mm 20 77.5 82.5 23 157 42 EX7-U31 1-3/8 x 1-3/8 (35 x 35 mm) 23 82.5 82.5 23 157 42 EX8-M21 42 x 42 mm 20 80 80 20 200 56 EX8-U21 1-3/8 x 1-3/8 (35 x 35 mm) 20 80 80 20 200 56 Ex8-I21 1-3/8 x 1-3/8 20 80 80 20 200 56 ALCO CONTROLS is not to be held responsible for erroneous literature regarding capacities, dimensions, applications, etc. stated herein. Products, specifications and data in this literature are subject to change without notice. The information given herein is based on technical data and tests which ALCO CONTROLS believes to be reliable and which are in compliance with technical knowledge of today. It is intended only Emerson Electric GmbH & Co. OHG ALCO CONTROLS Heerstraße 111 71332 Waiblingen Germany Phone ...49-(0)7151-509-0 Fax ...49-(0)7151-509-200 www.emersonclimate.eu EX48_35008_EN_R10.doc for use by persons having the appropriate technical knowledge and skills, at their own discretion and risk. Since conditions of use are outside of ALCO'S control we can not assume any liability for results obtained or damages occurred due to improper application. This document replaces all earlier versions. Benelux Denmark & Finland Eastern Europe, Turkey & Iran France, Greece, Maghreb Deutschland, Österreich, Schweiz Italia Middle East & Africa Poland Russia & Cis España & Portugal Sweden & Norway UK & Ireland 32 / 32 Phone.: +31 (0)773 240 234 +32 (0)87 305 565 +32 (0)87 305 061 +33 (0)478 668 570 +49 (0)6109 6059 0 +39 02 961 78 1 +97 148 832 828 +48 (0)22 458 9205 +7 495 981 9811 +34 93 4 123 752 +32 (0)87 305 565 +44 (0)1 189 838 000 Fax: +31 (0)773 240 235 +49 24 08 929 568 +32 (0)87 305 506 +33 (0)478 668 571 +49 (0)6109 6059 40 +39 02 961 78 888 +97 148 832 848 +48 (0)22 458 9255 +7 495 981 9816 +34 93 4 124 215 +49 24 08 929 568 +44 (0)1 189 838 001 22.07.2008