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Electronic Temperature Control Systems CATALOG 410A — Page 41 410A Electric Evaporator Control Valves CDS-9, -16 and -17 The CDS valves are designed for more precise and energy efficient control of temperatures in evaporators. Proper temperature is obtained by regulating refrigerant flow in the evaporator in response to signals generated by an electronic controller and sensor combination. The valves are built around balanced ports, which allows input power of only 4 watts, less than one quarter of the power used by older heat motor and analog designs. When CDS-16 not actively stepping, power to the motor is removed for further energy savings. The step motors used are standard 12-volt DC bipolar designs, which in concert with the integral gear reduction, give the valves unsurpassed accuracy and repeatability over the entire operating range. Since the valves are powered from an external controller, no pilot lines or high to low side bleeds are required. The properly applied CDS valve and controller can replace standard mechanical evaporator pressure regulators (EPR), suction stop solenoid valves, and conventional thermostats. CDS-9 and CDS-17 valves may be applied as heat reclaim, head pressure control, or liquid line differential valves for R-410A. Contact Sporlan for more information. All Sporlan CDS valves are rated at 620 psig (42 bar) MRP. Due to the step motor design, the CDS series are the first evaporator control valves that may be sized to contribute NO additional pressure drop to the suction line. Simplified cartridge design allows all moving parts to be replaced as a unit. Only the valve body is left in the line. This will allow maintenance or repair without unsweating the entire valve. Specifications TYPE CONNECTIONS ODF SOLDER – Inches (Standard Connections and Cable Lengths are in BOLD type.) CONFIGURATION CDS-9 5/8, 7/8, 1-1/8, 1-3/8 Straight Through CDS-16 1-3/8 Angle CDS-17 1-3/8, 1-5/8, 2-1/8 Straight Through Flow Capacity - Suction Vapor Tons n psi n °F kW n bar n °C TYPE CDS-9 CDS-16 CDS-17 EVAPORATOR PRESSURE DROP ACROSS VALVE – psi TEMP. °F 0.5 1 3 5 10 -20 2.5 3.5 5.9 7.4 9.7 0 3.2 4.4 7.4 9.4 12.9 20 3.9 5.4 9.1 11.5 16.5 40 4.7 6.5 10.9 13.9 19.4 -20 4.2 5.8 9.7 11.9 15.0 0 5.3 7.3 12.1 15.4 20.7 20 6.4 8.9 14.9 18.9 26.9 40 7.8 10.7 17.9 22.7 31.4 -20 4.5 6.2 10.5 13.3 17.4 0 5.6 7.8 13.2 16.9 23.3 20 6.9 9.6 16.3 20.7 29.9 40 8.4 11.6 19.7 25.1 34.9 TYPE CDS-9 CDS-16 CDS-17 Flow Capacity - Liquid Tons n psi n °F kW n bar n °C TYPE CDS-9 CDS-16 CDS-17 EVAPORATOR PRESSURE DROP ACROSS VALVE – psi TEMP. °F 0.5 1 3 5 10 -20 22.0 30.5 51.4 65.5 91.0 0 22.7 31.5 53.1 67.6 93.9 20 23.3 32.4 54.5 69.5 96.6 40 23.8 33.1 55.8 71.1 98.7 -20 35.5 49.0 81.9 104.0 143.7 0 36.6 50.6 84.6 107.4 148.4 20 37.7 52.1 86.9 110.4 152.5 40 38.5 53.2 88.9 112.9 156.0 -20 39.6 55.2 93.1 118.8 165.4 0 40.9 57.0 96.2 122.7 170.8 20 42.1 58.6 98.9 126.2 175.6 40 43.0 59.9 101.1 129.0 179.6 TYPE CDS-9 CDS-16 CDS-17 CABLE LENGTH Feet Meters CABLE ENDS 10 3 S-Stripped and Tinned EVAPORATOR PRESSURE DROP ACROSS VALVE – bar TEMP. °C 0.03 0.07 0.21 0.34 0.68 -30 8.8 12.2 20.6 25.8 34.1 -15 11.1 15.4 25.9 33.0 45.5 -5 13.6 18.9 31.8 40.6 58.1 5 16.5 22.9 38.5 49.0 68.1 -30 14.7 20.4 34.0 41.8 52.7 -15 18.5 25.5 42.6 54.1 72.6 -5 22.6 31.3 52.2 66.3 94.5 5 27.3 37.7 62.9 79.9 110.4 -30 15.7 21.9 37.0 46.7 61.2 -15 19.8 27.5 46.5 59.3 82.0 -5 24.3 33.9 57.2 72.9 105.0 5 29.4 40.9 69.1 88.2 122.8 EVAPORATOR PRESSURE DROP ACROSS VALVE – bar TEMP. °C 0.03 0.07 0.21 0.34 0.68 -30 77.2 107.3 180.7 230.2 319.9 -15 79.8 110.8 186.6 237.7 330.3 -5 82.0 113.9 191.8 244.4 339.6 5 83.8 116.5 196.1 249.9 347.2 -30 124.8 172.4 288.0 365.6 505.3 -15 128.9 178.1 297.4 377.5 521.8 -5 132.4 183.2 305.8 388.1 536.4 5 135.4 187.2 312.6 396.9 548.5 -30 139.4 194.0 327.6 417.9 581.7 -15 143.9 200.3 338.3 431.6 600.7 -5 148.0 205.9 347.8 443.7 617.6 5 151.3 210.6 355.6 453.7 631.5 For complete information see your Sporlan Wholesaler, our website at www.sporlan.com, or write Sporlan and request Bulletin 100-40.
Page 42 — CATALOG 410A Electronic Temperature Control Systems 410A Electric Discharge Bypass Valves SDR-3, -3X and -4 SDR series valves are Step Discharge Regulators, or electrically operated discharge gas bypass valves. Unlike previous mechanical discharge gas bypass valves that only control a downstream pressure, the SDR series offers direct temperature control of air or liquid. The valves use the same 12 DC bipolar step motor as all other Sporlan step motor operated valves, including the CDS valves above. Balanced pistons and ports, uniquely characterized for hot gas flow, have been incorporated into the design. Seating materials, motors and gears have all been laboratory and field proven in high temperature gas applications. or DDC building management system, the SDR can be used with the IB or TCB as an interface to the existing system. For stand-alone control, the SDR and TCB with sensor will allow close temperature control of the air or liquid stream. See the section below for information on the TCB and IB. The SDR valves are tight seating and will act as solenoid valves for shut off. All Sporlan SDR valves are rated at 620 psig (42 bar) MRP. With capacities up to 30 tons (140 kW) nominal R-410A, the SDR series is suitable for use in small process chillers and environmental chambers, as well as large direct expansion air conditioning applications. The valves may be controlled by third party controllers or by the Sporlan TCB interface/controller shown below. SDR valves are normally installed in the same manner as mechanical discharge gas bypass valves; in a bypass branch of the discharge gas line. The valves may be piped to feed into the evaporator at the distributor, downstream of the evaporator, or at the compressor suction. Contact Sporlan for additional piping recommendations. When applied with a third party controller Specifications TYPE CONNECTIONS Inches CONFIGURATION CABLE LENGTH Feet SDR-3 3/8, 1/2, 5/8 ODF Angle 10 SDR-3X 3/8, 1/2, 5/8 ODF Angle 20 30 SDR-4 7/8, 1-1/8 ODF Straight Through 40 Meters 3 6 9 12 CABLE ENDS S-Stripped and Tinned Discharge Bypass Valve Capacities Tons n psi n °F VALVE TYPE MINIMUM ALLOWABLE EVAPORATOR TEMPERATURE AT REDUCED LOAD °F 40°F 26°F 20°F 0°F -20°F -40°F CONDENSING TEMPERATURE °F 80 100 120 80 100 120 80 100 120 80 100 120 80 100 120 80 100 120 SDR-3 9.1 11.3 13.6 9.1 11.3 13.6 9.1 11.3 13.6 9.1 11.3 13.6 9.1 11.3 12.0 — — — SDR-3X 16.3 20.3 24.5 16.4 20.3 24.5 16.4 20.3 24.5 16.4 20.3 24.5 16.4 20.3 54.0 — — — SDR-4 29.7 39.9 49.7 32.3 41.8 51.2 33.1 42.5 51.8 35.0 44.0 53.1 36.1 45.0 13.6 — — — kW n bar n °C VALVE TYPE MINIMUM ALLOWABLE EVAPORATOR TEMPERATURE AT REDUCED LOAD °C 5°C -3°C -7°C -18°C -29°C -40°C CONDENSING TEMPERATURE °C 26 38 49 26 38 49 26 38 49 26 38 49 26 38 49 26 38 49 SDR-3 31.9 39.6 47.7 31.9 39.6 47.7 31.9 39.6 47.6 31.9 39.6 47.7 31.9 39.6 47.7 — — — SDR-3X 57.0 71.1 85.6 57.3 71.1 85.6 57.3 71.1 85.6 57.3 71.1 85.6 57.3 71.1 85.6 — — — SDR-4 104.0 139.8 174.0 112.9 146.5 179.4 115.7 148.7 85.6 122.4 154.1 185.9 126.3 157.5 188.9 — — — Note: Capacities are based on discharge temperature 50°F (28°C) above isentropic compression, 100°F (55°) condensing temperature, 0°F (0°C) subcooling, 25°F (13°C) superheat at the compressor and includes both the hot gas bypassed and the liquid refrigerant for desuperheating, regardless of whether the liquid is fed through the system thermostatic expansion valve or auxiliary desuperheating expansion valve. For complete information see your Sporlan Wholesaler, our website at www.sporlan.com, or write Sporlan and request Bulletin 100-60.
Page 2 and 3: CATALOG 410A — Page 1 Condensed C
Page 4 and 5: Thermostatic Expansion Valves CATAL
Page 10 and 11: Distributors and Auxiliary Side Con
Page 12 and 13: Distributors and Auxiliary Side Con
Page 14 and 15: Solenoid Valves Type E5 Series The
Page 16 and 17: Solenoid Valves Types E9, E10, E14,
Page 18 and 19: Solenoid Valves CATALOG 410A — Pa
Page 20 and 21: 3-Way Heat Reclaim Valves Advantage
Page 22 and 23: 3-Way Heat Reclaim Valves CATALOG 4
Page 24 and 25: Filter-Driers adsorption of moistur
Page 26 and 27: Replaceable Core Type ODF Solder Co
Page 28 and 29: Filter-Driers Significance of the T
Page 30 and 31: Steel Suction Line Accumulators CAT
Page 32 and 33: 8 Outstanding Benefits Moisture and
Page 34 and 35: Head Pressure Control Valves High a
Page 36 and 37: Head Pressure Control Valves CATALO
Page 38 and 39: Discharge Bypass Valves As the suct
Page 40 and 41: Discharge Bypass Valves used so all
Page 44 and 45: Electronic Temperature Control Syst
Page 46 and 47: Pressure Temperature Chart CATALOG

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