Installation Guide for Danfoss models including: ETS 8M Electric Expansion Valve, ETS 8M, Electric Expansion Valve, Expansion Valve, Valve
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DocumentDocument034R9900 034R9900 Installation guide Electric expansion valve Type ETS 8M Refrigerants / For a complete list of approved refrigerants, please visit http://store.danfoss.com/ and search for individual code numbers, where refrigerants are listed as part of product specifications. Refrigerant temperature (JB/T 10212-2016) (JB/T 10212-2016) t Min. : -30 °C / -22 °F, t Max. : 70 °C /158 °F Max. working pressure / PS / MWP: 4.9 MPa / 49 barg / 710 psig Allowable ambient temperature (JB/T 10212- 2016) (JB/T 10212- 2016) -30 °C / -22 °F - 70 °C /158 °F Stepper motor type / Unipolar / Bipolar / Nominal voltage / 12 V DC Phase current unipolar motor / 261 mA Phase current bipolar motor / 143 mA Warning! 1 Mounting Angle / 90º 90º Do not connect directly to AC / DC power source. Connect valve to appropriate controller / driver only. Do not operate valve while assembling or disassembling. © Danfoss | Climate Soutions | 2022.08 90º 90º AN392543536257en-000201 | 1 2 Brazing option 1 / 1 Brazing option 2 / 2 3 Assembling / Min 1 N2 Ag 5% 2 Min 1 Ag 5% N2 2 H2O N gas from opposite side of soldering point. 2 1 4 Unipolar Motor Excitation Sequence / Table:1 Stepper motor open and close sequence / Coil Wire Excitation Sequence Valve Opening Valve Closing 1 2 3 4 5 6 7 8 A1 Orange/ ON ON OFF OFF OFF OFF OFF ON B1 Red/ OFF ON ON ON OFF OFF OFF OFF A2 Yellow/ OFF OFF OFF ON ON ON OFF OFF B2 Black/ OFF OFF OFF OFF OFF ON ON ON COM Grey/ ON ON ON ON ON ON ON ON Coil resistance check / : Coil A1 = Coil B1 = Coil A2 = Coil B2 = 46 ± 3 Ohm Please check motor type before refering to excitation sequence / 2 | AN392543536257en-000201 5 Bipolar Motor Excitation Sequence / Table 2: Stepper motor open and close sequence / Excitation Sequence Coil Wire Valve opening Valve closing 1 2 3 4 5 6 7 8 A1 Orange/ - - OFF + + + OFF - A2 Yellow/ + + OFF - - - OFF + B1 Red/ OFF - - - OFF + + + B2 Black/ OFF + + + OFF - - - Coil resistance check / : Coil A = Coil B = 92 ± 6 Ohm Please check motor type before refering to excitation sequence / © Danfoss | Climate Solutions | 2022.08