Solenoid valves. Solenoid valves, type PKVD Solenoid valves, type EVR NC / NO

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1 Solenoid valves Contents Page Solenoid valves, type PKVD Introduction... 5 Features... 5 Technical data... 5 Ordering... 5 Capacity... 6 Sizing... 7 Valve selection... 7 Design/Function... 8 Dimensions and weights... 8 Solenoid valves, type EVR NC / NO Introduction... 9 Features... 9 Approvals... 9 Technical data... 9 Ordering Capacity Liquid capacity Q e kw R R 134a...14 R 404A/R R 407C Suction vapour capacity Q e...15 R R 134a...16 R 404A/R R 407C Hot gas capacity Q h kw R R 134a...19 R 404A/R R 407C Hot gas capacity G h kg/s R R 134a...22 R 404A/R R 407C Design/Function Material specifications Dimensions and weights EVR (NC) 2 15, flare connection EVR (NC) 2 22, solder connection EVR (NC) 25, 32 og 40, solder connection EVR (NC) 15 and 20, flange connection EVR (NO) 6 22, flare or solder connection Danfoss A/S (RC-CM/hbs), RK0YC102 1

2 Solenoid valves Contents Page Solenoid valves, type EVRC NC Introduction Technical data Approvals Ordering Material specifications Dimensions and weight...32 Stainless steel solenoid valves type EVRS 3 20 and EVRST Introduction Features Technical data Ordering Capacity Liquid capacity Q e kw R 717 (NH 3 ) R R 134a...34 R 404A Suction vapour capacity Q e kw R 717 (NH 3 ) R R 134a...35 R 404A Hot gas capacity Q e kw R 717 (NH 3 ) R R 134a...37 R 404A Hot gas capacity G h kg/s R 717 (NH 3 ) R R 134a...38 R 404A Design/Function Material specification Dimensions and weights RK0YC102 Danfoss A/S (RC-CM/hbs),

3 Solenoid valves Contents Page Coils for solenoid valves Introduction Features Technical data Connection Ordering Coils for use in EX zone 2 EEx na II T Introduction Features Approval Technical data Connections Ordering UL - approved coil, type GP Introduction Features Approvals Technical data Ordering Danfoss A/S (RC-CM/hbs), RK0YC102 3

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5 Solenoid valves PKVD Introduction Features Technical data PKVD solenoid valve is open at 0 bar differential pressure, a characteristic that saves energy costs. PKVD is a normally open valve, and is designed for use in traditionally controlled refrigeration For all CFC, HCFC and HFC Minimal pressure drop with fully open valve Large range of coils for a.c. and d.c. Can be installed in vertical / horizontal position Refrigerants For all CFC, HCFC and HFC Max. working pressure PB = 21 bar Max. test pressure p' = 28 bar Max. temperature of medium +140 C Min. temperature of medium -40 C Ambient temperature C (with a.c.-coil) C (with d.c.-coil) systems, or in systems that are electronically controlled by, for example, Danfoss ADAP- KOOL. PKVD is used in suction lines in refrigeration systems with hot gas defrosting. Filter in pilot connection Internal relief passage i.e. no risk of external leakage. Solder connections up to 1 5/8 in. Minimum opening differential pressure p = 0 bar Differential between pilot and suction pressure p = bar Pilot valve EVH top section Coils a.c. and d.c. 18F standard coils Pilot connection Hot gas, cool gas Ordering Rated capacity 1 ) kw Solder connection k v value 2 ) R 22 R 134a R 404A/R 507 R 407 in. mm m 3 /h PKVD / N1070 PKVD N1073 PKVD / N1075 PKVD / N1072 PKVD N ) Rated suction vapour capacity is based on evaporating temperature t e = 10 C liquid temperature ahead ofvalve t l = +25 C pressure drop across valve p = 0.10 bar. 2 ) The k v value is the water flow in m 3 /h at a pressure drop across valve of 1 bar, ρ = 1000 kg/m 3. Code no. Valve body without coil Coils: See "Coils for solenoid valves", RD3JB Danfoss A/S (RC-CM/MWA), Technical leaflet - RD3MB302 5

6 Solenoid valves, type PKVD Capacity Press. drop across valve Suction vapour capacity Q e kw at liquid temperature t l = +25 C Evaporating temperature t e C p bar R 22 PKVD PKVD PKVD R 134a PKVD PKVD PKVD R 404A/R 507 PKVD PKVD PKVD The capacities are based on liquid temperature ahead of expansion valve, t l = +25 C A change in super heat t s of 10 K changes the capacity approx. 4% accordingly. Correction factors for liquid temperature t l R 407C PKVD PKVD PKVD t l C R 134a R R 404A/ R 507 R 407C Technical leaflet - RD3MB302 Danfoss A/S (RC-CM/MWA),

7 Solenoid valves, type PKVD Sizing For optimum performance, it is important to select a PKVD valve according to system conditions and application. The following data must be used when sizing a PKV/PKVS valve: l Refrigerant - CFC, HCFC or HFC l Evaporator capacity Q e in kw l Evaporating temperature t e in C l Liquid temperature ahead of expansion valve t l in C l Connection type flare or solder l Connection size in inches or mm Valve selection Example When selecting the appropiate valve it may be necessary to convert the actual evaporator capacity using a correction factor. This is required when your system conditions are different than the table conditions. The following example illustrates how this is done. Refrigerant: R 404A Evaporator capacity: Q e = 9 kw Evaporating temperature: t e = 20 C Pressure drop across regulator: max bar Liquid temperature ahead of expansion valve t l = 30 C Connection size: 1 5 /8 in. Step 1 Determine the correction factor for liquid temperature t l ahead of the expansion valve. From the correction factors table (see below) a liquid temperature of 30 C, R 404A corresponds to a factor of Correction factors for liquid temperature t l t l C R 134a R R 404A/ R 507 R 407C Step 2 Corrected evaporator capacity is Q e = 9 x 1.07 = 9.63 kw Step 3 Select the capacity table for R 404A and choose the column for evaporating temperature t e = 20 C. Using the corrected evaporator capacity, select a valve that provides an equivalent or greater capacity at maximum 0.06 bar pressure drop across the valve. In this example PKVD 15 will be suitable since the capacity (10.6 kw at a pressure drop across the regulator of 0.06 bar) and the connection size fullfill the conditions. Step 4 PKVD 15, 1 3 /8 in. solder connection Code no. 034N1075 see ordering Danfoss A/S (RC-CM/MWA), Technical leaflet - RD3MB302 7

8 Solenoid valves, type PKVD Design/Function 1. Main valve 2. Cylinder with piston 3. Pilot valve 4. Orifice When the coil is de-energized, pilot valve (3) is closed thereby shutting off hot gas supply from the pilot line. Therefore, through orifice (4), pressure p 1 above the piston will be equalized with suction gas pressure p 4 in the main valve oulet.thus, spring force p 3 will keep the main valve open. When the coil on pilot valve is energized, the valve opens and hot gas from the pilot line is able to flow freely into the space above the piston in cylinder (2). This causes pilot pressure p 1 to rise, forcing the piston down and closing main valve (1) when the differential between pilot pressure p 1 and suction gas pressure p 4 becomes greater than 3.5 bar. Dimensions and weights Coil with cable Coil with DIN plugs Weight of coil 10 W: approx. 0.3 kg 12 and 20 W: approx. 0.5 kg Connection H 1 H 2 H 3 L L 2 L 3 L 4 L 5 max. 10 W 12 / 20 W in. mm mm mm mm mm mm mm mm mm mm mm mm kg PKVD / PKVD / PKVD / PKVD B D Weight with coil 8 Technical leaflet - RD3MB302 Danfoss A/S (RC-CM/MWA),

9 Solenoid valves EVR NC / NO Introduction EVR is a direct or servo operated solenoid valve for liquid, suction, and hot gas lines with fluorinated refrigerants. EVR valves are supplied complete or as separate components, i.e. valve body, coil and flanges, if required, can be ordered separately. Features Complete range of solenoid valves for refrigeration, freezing and air conditioning plant Supplied both normally closed (NC) and normally open (NO) with de-energized coil Wide choice of coils for a.c. and d.c. Suitable for all fluorinated refrigerants Designed for media temperatures up to 105 C MOPD up to 25 bar with 12 W coil Flare connections up to 5/8 in. Solder connections up to 2 1/8 in. Extended ends for soldering make installation easy It is not necessary to dismantle the valve when soldering in. EVR are also available with flange connections Approvals DnV, Det norske Veritas, Norge Pressure Equipment Directive (PED) 97/23/EC The Low Voltage Directive (LVD) 73/23/EC with amendments EN P Polski Rejestr Statków, Polen MRS, Maritime Register of Shipping, Russia Versions with UL and CSA approval can be supplied to order. Technical data Refrigerants CFC, HCFC, HFC Temperature of medium C with 10 W or 12 W coil. Max. 130 C during defrosting. Ambient temperature and enclosure for coil See "Coils for solenoid valves", RD3JE. Danfoss A/S, Technical leaflet - RD3AD302 9

10 Solenoid valves, type EVR NC / NO Technical data (continued) Min. Opening differential pressure with standard coil p bar Max. (= MOPD) liquid 2 ) 10 W a.c. 12 W a.c. 20 W d.c. Temperature of medium Max. working pressure PB k v value 1 ) C bar m 3 /h EVR EVR EVR EVR 6 NO EVR EVR 10 NO EVR EVR 15 NO EVR 20 (a.c.) EVR 20 (d.c.) EVR 20 NO EVR EVR 22 NO EVR EVR EVR ) The k v value is the water flow in m 3 /h at a pressure drop across valve of 1 bar, ρ = 1000 kg/m 3. 2 ) MOPD for media in gas form is approx. 1 bar greater. Rated capacity kw Liquid Suction vapour Hot gas R 22 R 134a R 404A/R 507 R 407C R 22 R 134a R 404A/R 507 R 407C R 22 R 134a R 404A/R 507 R 407C EVR EVR EVR EVR EVR EVR EVR EVR EVR EVR Rated liquid and suction vapour capacity is based on evaporating temperature t e = -10 C, liquid temperature ahead of valve t l = +25 C, pressure drop in valve p = 0.15 bar. Rated hot gas capacity is based on condensing temperature t c = +40 C, pressure drop across valve p = 0.8 bar, hot gas temperature t h = +65 C, and subcooling of refrigerant t sub = 4 K. 10 Technical leaflet - RD3AD302 Danfoss A/S,

11 Solenoid valves, type EVR NC / NO Ordering Complete valves Normally closed (NC) with a.c. coil 1 ) Code no. Connection Valve body + 10 W a.c. coil with 1 m cable Flare 2 ) Solder ODF in. mm in./mm in. mm EVR 3 1/ F F F2052 EVR 6 3 / F F F2092 EVR 10 1 / F F F2132 EVR 15 5 / F F F2192 Code no. Connection Valve body + 10 W a.c. coil with terminal box Flare 2 ) Solder ODF in. mm in./mm in. mm EVR 3 1 / F F F2053 EVR 6 3 / F F F2093 EVR 10 1 / F F F2133 EVR 15 5 / F F F2193 EVR 20 7 / F F2243 Connection Code no. Valve body + 10 W a.c. coil with DIN plugs and protective cap Flare 2 ) Solder ODF in. mm in./mm in. mm EVR 2 1 / F F F2024 EVR 3 1 / F F F2054 EVR 6 3 / F F F2094 EVR 10 1 / F F F2134 Connection Code no. Valve body + 10 W a.c. coil in. mm. with DIN plug 3) EVR 2 1/ F F F ) Please specify code no., voltage and frequency. Voltage and frequency can also be given in the form of an appendix number, see table "Appendix numbers". 2 ) Supplied without flare nuts. Separate flare nuts: 1 / 4 in. or 6 mm, code no. 011L / 8 in. or 10 mm, code no. 011L / 2 in. or 12 mm, code no. 011L / 8 in. or 16 mm, code no. 011L1167 3) Can only be used with DIN plug Appendix numbers Voltage Frequency Energy consumpt. Appendix no. V Hz W / / Danfoss A/S, Technical leaflet - RD3AD302 11

12 Solenoid valves, type EVR NC / NO Ordering (fortsat) Components Flare and solder connections Separate valve bodies, normally closed (NC) Code no. Connection Valve body without coil Required coil type Flare 1 ) Solder ODF With manual Without manual in. mm in./mm in. mm operation operation EVR 2 a.c. 1 / F F F1202 EVR 3 1 / F F F / F F F1208 EVR 6 3 / F F F / F F F1236 a.c./d.c. 1 / F F F1218 EVR 10 5 / F F F ) Valve bodies are supplied without flare nuts. Separate flare nuts: 1 / 4 in. or 6 mm, code no. 011L / 8 in. or 10 mm, code no. 011L / 2 in. or 12 mm, code no. 011L / 8 in. or 16 mm, code no. 011L ) With manual operation. 3 ) The normal range of coils can be used for the NO valves, with the exception of the double frequency versions of 110 V, 50/60 Hz and 220 V, 50/60 Hz. Coils See "Coils for solenoid valves", RD3JE. 5 / F F F1228 EVR 15 5 / F ) 032F / F F / F F1240 a.c. 7 / F1254 EVR / F F1245 d.c. 7 / F F / F1274 EVR 22 a.c. 1 3 / F F /8 032F F2201 EVR F F / F F / H H1106 EVR 32 a.c./d.c. 1 5 /8 042H H H H /8 042H H1110 EVR H H / H H1112 Separate valve bodies, normally open (NO) 3 ) Required coil type Connection Flare 1 ) Code no. Valve body without coil 3 ) Solder ODF in. mm in. mm in. mm EVR 6 3 / F F F F1295 EVR 10 1 / F F F F1296 EVR 15 EVR 20 a.c./d.c. 5 / F F F F / F F / F F / F F1279 EVR 22 a.c. 1 3 / F F Technical leaflet - RD3AD302 Danfoss A/S,

13 Solenoid valves, type EVR NC / NO Ordering (continued) Components Flare and solder connections Separate valve bodies, normally closed (NC) Code no. Valve body + gaskets + bolts; without coil and flanges With manual operation Without manual operation EVR 15 a.c./d.c. 032F F1224 EVR 20 Required coil type Connection a.c. Flanges 032F F1243 d.c. 032F F1263 Coils See "Coils for solenoid valves", RD3JE. Flange sets Valve type EVR 15 EVR 20 Connection Code no. Solder Weld in. mm in. mm in. 1/ 2 027N / L L / 4 027N / L L / 4 027N / L L N / L L1228 Example EVR 15 without manual operation, code no. 032F /2 in. weld flange set, code no. 027N coil with termfnal box, 220 V, 50 Hz, code no. 018F6701 (See "Coils for solenoid valves", RD3JE). Accessories Description Mounting bracket for EVR 2, 3, 6 and 10 Strainer FA for direct mounting Code no. 032F0197 See "FA" Danfoss A/S, Technical leaflet - RD3AD302 13

14 Solenoid valves, type EVR NC / NO Capacity Liquid capacity Q e kw Liquid capacity Q e kw at pressure drop across valve p bar EVR EVR EVR EVR EVR EVR EVR EVR EVR EVR Liquid capacity Q e kw Liquid capacity Q e kw at pressure drop across valve p bar EVR EVR EVR EVR EVR EVR EVR EVR EVR EVR Liquid capacity Q e kw R 22 R 134a R 404A/R 507 Liquid capacity Q e kw at pressure drop across valve p bar EVR EVR EVR EVR EVR EVR EVR EVR EVR EVR Capacities are based on liquid temperature t l = +25 C ahead of valve, evaporating temperature t e = 10 C, superheat 0 K. Correction factors When sizing valves, the plant capacity must be multiplied by a correction factor depending on liquid temperature t l ahead of valve/evaporator. When the corrected capacity is known, the selection can be made from the table. Correction factors for liquid temperature t l t l C R R 134a R 404A/R Technical leaflet - RD3AD302 Danfoss A/S,

15 Solenoid valves, type EVR NC / NO Capacity (continued) R 407C Liquid capacity Q e kw Liquid capacity Q e kw at pressure drop across valve p bar EVR EVR EVR EVR EVR EVR EVR EVR EVR EVR Capacities are based on liquid temperature t l = +25 C ahead of valve, evaporating temperature t e = 10 C, and superheat 0 K. Correction factors When sizing valves, the plant capacity must be multiplied by a correction factor depending on liquid temperature t l ahead of valve/evaporator. When the corrected capacity is known, the selection can be made from the table. Correction factors based on liquid temperature t l t l C R 407C Capacities are based on liquid temperature t l = +25 C ahead of evaporator. The table values refer to the evaporator capacity and are given as a function of evaporating temperature t e and pressure drop p across valve. Capacities are based on dry, saturated vapour ahead of valve. During operation with superheated vapour ahead of valve, the capacities are reduced by 4% for each 10 K superheat. R 22 Suction vapour capacity Q e Pressure drop Suction vapour capacity Q e kw at evaporating temperature t e C p bar EVR EVR EVR EVR EVR EVR EVR EVR Correction factors When sizing valves, the evaporator capacity must be divided by a correction factor depending on liquid temperature t l ahead of expansion valve. When the corrected capacity is known, the selection can be made from the table. Correction factors for liquid temperature t l t l C R Danfoss A/S, Technical leaflet - RD3AD302 15

16 Solenoid valves, type EVR NC / NO Capacity (continued) Capacities are based on liquid temperature t l = +25 C ahead of evaporator. The table values refer to the evaporator capacity and are given as a function of evaporating temperature t e and pressure drop p across valve. Capacities are based on dry, saturated vapour ahead of valve. During operation with superheated vapour ahead of valve, the capacities are reduced by 4% for each 10 K superheat. Suction vapour capacity Q e kw Suction vapour capacity Q e kw R 134a Pressure drop Suction vapour capacity Q e kw at evaporating temperature t e C across valve p bar EVR EVR EVR EVR EVR EVR EVR EVR R 404A/R 507 Pressure drop Suction vapour capacity Q e kw at evaporating temperature t e C across valve p bar EVR EVR EVR EVR EVR EVR EVR EVR Correction factors When sizing valves, the plant capacity must be multiplied by a correction factor depending on liquid temperature t l ahead of valve/evaporator. When the corrected capacity is known, the selection can be made from the table. Correction factors based on liquid temperature t l t l C R 134a R 404A/R Technical leaflet - RD3AD302 Danfoss A/S,

17 Solenoid valves, type EVR NC / NO Capacity (continued) Capacities are based on liquid temperature t l = +25 C ahead of evaporator. The table values refer to the evaporator capacity and are given as a function of evaporating temperature t e and pressure drop p across valve. Capacities are based on dry, saturated vapour ahead of valve. During operation with superheated vapour ahead of valve, the capacities are reduced by 4% for each 10 K superheat. R 407C Pressure drop Suction vapour capacity Q e kw at evaporating temperature t e C across valve p bar EVR EVR EVR EVR EVR EVR EVR EVR Correction factors When sizing valves, the evaporator capacity must be multiplied by a correction factor depending on liquid temperature t l ahead of expansion valve. When the corrected capacity is known, the selection can be made from the table. Correction factors based on liquid temperature t l t l C R 407C Hot gas defrosting With hot gas defrosting it is not normally possible to select a valve from condensing temperature t c and evaporating temperature t e. This is because the pressure in the evaporator as a rule quickly rises to a value near that of the condensing pressure. It remains at this value until the defrosting is finished. In most cases therefore, the valve will be selected from condensing temperature t c and pressure drop p across the valve, as shown in the example for heat recovery. Heat recovery The following is given: Refrigerant = R 22 Evaporating temperature t e = 30 C Condensing temperature t c = + 40 C Hot gas temperature ahead of valve t h = + 85 C Heat recovery condenser yield Q h = 8 kw The capacity table for R 22 with t c = + 40 C gives the the capacity for an EVR 10 as 8.9 kw, when pressure drop p is 0.2 bar. The correction factor for t e = 30 C is given in the table as The correction for hot gas temperature t h = + 85 C has been calculated as 4% which corresponds to a factor of Q h must be corrected with factors found: With p = 0.2 bar is Q h = 8.9 x 0.94 x 1.04 = 8.7 kw. With p = 0.1 bar, Q h becomes only 6.3 x 0.94 x 1.04 = 6.2 kw. An EVR 6 would also be able to give the required capacity, but with p at approx. 1 bar. The EVR 6 is therefore too small. The EVR is so large that it is doubtful whether the necessary p of apprx. 0.1 bar could be obtained. An EVR 15 would therefore be too large. Result: An EVR 10 is the correct valve for the given conditions. Danfoss A/S, Technical leaflet - RD3AD302 17

18 Solenoid valves, type EVR NC / NO Capacity (continued) Hot gas capacity Q h kw R 22 An increase in hot gas temperature t h of 10 K, based on t h = t c +25 C, reduces valve capacity approx. 2% and vice versa. A change in evaporating temperature t e changes valve capacity; see correction factor table below. Pressure drop across valve p bar Hot gas capacity Q h kw Evaporating temp. t e =-10 C. Hot gas temp. t h =t c +25 C. Subcooling t sub =4 K Condensing temperature t c C EVR EVR EVR EVR EVR EVR EVR EVR EVR EVR Correction factors When sizing valves, the table value must be multiplied by a correction factor depending on evaporating temperature t e. Correction factors for evaporating temperatur t e t e C R Technical leaflet - RD3AD302 Danfoss A/S,

19 Solenoid valves, type EVR NC / NO Capacity (continued) An increase in hot gas temperature t h of 10 K, based on t h = t c +25 C, reduces valve capacity approx. 2% and vice versa. A change in evaporating temperature t e changes valve capacity; see correction factor table below. Hot gas capacity Q h kw Pressure drop across valve p bar R 134a Hot gas capacity Q h kw Evaporating temp. t e =-10 C. Hot gas temp. t h =t c +25 C. Subcooling t sub =4 Kv Condensing temperature t c C EVR EVR EVR EVR EVR EVR EVR EVR EVR EVR Correction factors When sizing valves, the table value must be multiplied by a correction factor depending on evaporating temperature t e. Correction factors for evaporating temperatur t e t e C R 134a Danfoss A/S, Technical leaflet - RD3AD302 19

20 Solenoid valves, type EVR NC / NO Capacity (continued) An increase in hot gas temperature t h of 10 K, based on t h = t c +25 C, reduces valve capacity approx. 2% and vice versa. A change in evaporating temperature t e changes valve capacity; see correction factor table below. Hot gas capacity Q h kw Pressure drop across valve p bar R 404A/R 507 Hot gas capacity Q h kw Evaporating temp. t e =-10 C. Hot gas temp. t h =t c +25 C. Subcooling t sub =4 K Condensing temperature t c C EVR EVR EVR EVR EVR EVR EVR EVR EVR EVR Correction factors When sizing valves, the table value must be multiplied by a correction factor depending on evaporating temperature t e. Correction factors for evaporating temperatur t e t e C R 404A/R Technical leaflet - RD3AD302 Danfoss A/S,

21 Solenoid valves, type EVR NC / NO Capacity (continued) Hot gas capacity Q h kw Pressure drop across valve p bar R 407C Hot gas capacity Q h kw Evaporating temp. t e =-10 C. Hot gas temp. t h =t c +25 C. Subcooling t sub =4 K Condensing temperature t c C EVR EVR EVR EVR EVR EVR EVR EVR An increase in hot gas temperature t h of 10 K, based on t h = t c +25 C, reduces valve capacity approx. 2% and vice versa. A change in evaporating temperature t e changes valve capacity; see correction factor table below EVR EVR Correction factors When sizing valves, the table value must be multiplied by a correction factor depending on evaporating temperature t e. Correction factors for evaporating temperatur t e t e C R 407C Danfoss A/S, Technical leaflet - RD3AD302 21

22 Solenoid valves, type EVR NC / NO Capacity (continued) An increase in hot gas temperature t h of 10 K reduces valve capacity approx. 2% and vice versa. Hot gas capacity G h kg/s Hot gas Condensing temperature temperature t h C t c C R 22 Hot gas capacity G h kg/s at pressure drop across valve p bar EVR EVR EVR EVR EVR EVR EVR EVR EVR EVR Hot gas Condensing temperature temperature t h C t c C R 134a Hot gas capacity G h kg/s at pressure drop across valve p bar EVR EVR EVR EVR EVR EVR EVR EVR EVR EVR Technical leaflet - RD3AD302 Danfoss A/S,

23 Solenoid valves, type EVR NC / NO Capacity (continued) An increase in hot gas temperature t h of 10 K reduces valve capacity approx. 2% and vice versa. Hot gas capacity G h kg/s Hot gas Condensing temperature temperature t h C t c C R 404A/R 507 Hot gas capacity G h kg/s at pressure drop across valve p bar EVR EVR EVR EVR EVR EVR EVR EVR EVR EVR Hot gas capacity G h kg/s Hot gas Condensing temperature temperature t h C t k C R 407C Hot gas capacity G h kg/s at pressure drop across valve p bar EVR EVR EVR EVR EVR EVR EVR EVR EVR EVR Danfoss A/S, Technical leaflet - RD3AD302 23

24 Solenoid valves, type EVR NC / NO Design / Function EVR 2 (NC) EVR 10 (NC) EVR 10 (NO) EVR 25 (NC) EVR 32 and 40 (NC) 4. Coil 16. Armature 18. Valve plate / Pilot valve plate 20. Earth terminal 24. Connection for flexible steel hose 28. Gasket 29. Pilot orifice 30. O-ring 31. Piston ring 36. DIN plug 37. DIN socket (to DIN 43650) 40. Protective cap/terminal box 43. Valve cover 44. O-ring 45. Valve cover gasket 49. Valve body 50. Gasket 51. Threaded plug 53. Manual operation spindle 73. Equalization hole 74. Main channel 75. Pilot channel 76. Compression spring 80. Diaphragm/Servo piston 83. Valve seat 84. Main valve plate 90. Mounting hole EVR solenoid valves are designed on two different principles: 1. Direct operation 2. Servo operation 1. Direct operation EVR 2 and 3 are direct operated. The valves open direct for full flow when the armature (16) moves up into the magnetic field of the coil. This means that the valves operate with a min. differential pressure of 0 bar. The teflon valve plate (18) is fitted direct on the armature (16). Inlet pressure acts from above on the armature and the valve plate. Thus, inlet pressure, spring force and the weight of the armature act to close the valve when the coil is currentless. 2. Servo operation EVR 6 22 are servo operated with a "floating" diaphragm (80). The pilot orifice (29) of stainless steel is placed in the centre of the diaphragm. The teflon pilot valve plate (18) is fitted direct to the armature (16). When the coil is currentless, the main orifice and pilot orifice are closed. The pilot orifice and main orifice are held closed by the weight of the armature, the armature spring force and the differential pressure between inlet and outlet sides. When current is applied to the coil the armature is drawn up into the magnetic field and opens the pilot orifice. This relieves the pressure above the diaphragm, i.e. the space above the diaphragm becomes connected to the outlet side of the valve. The differential pressure between inlet and outlet sides then presses the diaphragm away from the main orifice and opens it for full flow. Therefore a certain minimum differential pressure is necessary to open the valve and keep it open. For EVR 6 22 valves this differential pressure is 0.05 bar. When current is switched off, the pilot orifice closes. Via the equalization holes (73) in the diaphragm, the pressure above the diaphragm then rises to the same value as the inlet pressure and the diaphragm closes the main orifice. EVR 25, 32 and 40 are servo operated piston valves. The valves are closed with currentless coil. The servo piston (80) with main valve plate (84) closes against the valve seat (83) by means of the differential pressure between inlet and outlet side of the valve, the force of the compression spring (76) and possibly the piston weight. When current to the coil is switched on, the pilot orifice (29) opens. This relieves the pressure on the piston spring side of the valve. The differential pressure will then open the valve. The minimum differential pressure needed for full opening of the valves is 0.07 bar. EVR (NO) has the opposite function to EVR (NC), i.e. it is open with de-energised coil. EVR (NO) is available with servo operation only. 24 Technical leaflet - RD3AD302 Danfoss A/S,

25 Solenoid valves, type EVR NC / NO Material specifications EVR 2 to 22 Solenoid valves Standard No. Description Material Analysis Mat.no. W.no. DIN EN 1 Valve body EVR 2 til 25 Brass CuZn40Pb2 CW617N EVR 2 til 3 Stainless steel X5 CrNi Cover EVR 6 til 22 Brass CuZn40Pb2 CW617N EVR 25 Cast iron GGG Armature tube EVR 2 til 25 Stainless steel X2 CrNi Armature tube nut EVR 25 Stainless steel X8 CrNiS Gasket EVR 2 til 25 Rubber Cr 6 Gasket EVR 25 Al. gasket Al Solder tube EVR 25 Copper SF-Cu CW024A Screws EVR 2 til 25 Stainless steel A Spindle for man. operat. EVR 25 Stainless steel X8 CrNiS Gasket EVR 25 Rubber Cr EVR 32 to 40 Solenoid valves Standard No. Description Material Analysis Mat.no. W.no. DIN EN 1 Valve body EVR 32/40 Cast Iron EN-GJS LT EN-JS Cover EVR 32/40 Brass CuZn40Pb2 CW617N Armature tube EVR 32/40 Stainless steel X2 CrNi Armature tube nut EVR 32/40 Stainless steel X8 CrNiS Gasket EVR 32/40 Rubber Cr 6 Gasket EVR 32/40 Al. gasket Al Solder tube EVR 32/40 Copper SF.Cu CW024A Screws EVR 32/40 Stainless steel A Spindle for. man. operation EVR 32/40 Stainless steel X8 CrNiS Danfoss A/S, Technical leaflet - RD3AD302 25

26 Solenoid valves, type EVR NC / NO Dimensions and weights EVR (NC) 2 15, flare connection Weight of coil 10 W: approx. 0.3 kg 12 and 20 W: approx. 0.5 kg With cable connection coil With DIN plugs coil With terminal box coil Connection L H 1 H 2 H 3 H 4 L L 2 L 3 L 5 max. Weight 4 B B 1 max. Flare 10 W 12/20 W with coil in. mm mm mm mm mm mm mm mm mm mm mm mm mm kg EVR 2 1 / EVR 3 1 / / EVR 6 3 / / EVR 10 1 / / EVR 15 5 / Technical leaflet - RD3AD302 Danfoss A/S,

27 Solenoid valves, type EVR NC / NO Dimensions and weights (continued) EVR (NC) 2 22, solder connection Weight of coil 10 W: approx. 0.3 kg 12 and 20 W: approx. 0.5 kg With cable connection coil With DIN plugs coil With terminal box coil Connection L H 1 H 2 H 3 H 4 L L 2 L 3 L 5 max. Weight 4 B B 1 max. Solder 10 W 12/20 W with coil in. mm mm mm mm mm mm mm mm mm mm mm mm mm kg EVR 2 1/ EVR 3 1 / / EVR 6 3/ / EVR 10 1/ / EVR 15 5 / / EVR 20 7 / / EVR / Danfoss A/S, Technical leaflet - RD3AD302 27

28 Solenoid valves, type EVR NC / NO Dimensions and weights (continued) EVR (NC) 25, 32 og 40, solder connection EVR 25 EVR 32 and 40 EVR 32 and 40 terminal box EVR 25 with terminal box coil Weight of coil 10 W: approx. 0.3 kg 12 and 20 W: approx. 0.5 kg Coil with cable Coil with DIN plugs Coil with cable Coil with DIN Coil with terminal box L 5 max. Connection Solder H 1 H 2 H 3 H 4 L L 2 connection connection B B 1 max. L 3 L 4 10 W 12/20 W in. mm mm mm mm mm mm mm mm mm mm mm mm mm kg EVR / / EVR / / EVR / / EVR (NC) 15 and 20, flange connection Weight with coil Coil with cable Coil with DIN plugs Weight of coil 10 W: approx. 0.3 kg 12 and 20 W: approx. 0.5 kg With terminal box coil Weight of flange set For EVR 15: 0.6 kg For EVR 20: 0.9 kg H 1 H 2 H 3 H 4 L L 1 L 2 Coil with Coil with Coil with Weight cable DIN terminal box connection connection L 5 max. B B 1 max. with coil excl. L 3 L 4 10 W 12/20 W flanges mm mm mm mm mm mm mm mm mm mm mm mm mm kg EVR EVR Technical leaflet - RD3AD302 Danfoss A/S,

29 Solenoid valves, type EVR NC / NO Dimensions and weights (continued) EVR (NO) 6 22, flare or solder connection With cable connection coil With DIN plugs coil Weight of coil 10 W: approx. 0.3 kg 12 and 20 W: approx. 0.5 kg With terminal box coil Coil with Coil with DIN Coil with H 1 H 2 H 3 H 4 L L 1 L 2 cable connection terminal box Weight connection L 5 max. B B 1 max. with coil L 3 L 4 10 W 12/20 W mm mm mm mm mm mm mm mm mm mm mm mm mm kg Flare EVR EVR EVR Solder EVR EVR EVR EVR ) 17 1 ) EVR ) Applies to 7 / 8 in. and 22 mm connections. For 1 1 / 8 in. and 28 mm connections is L = 214 mm and L 2 = 22 mm. Danfoss A/S, Technical leaflet - RD3AD302 29

30

31 Solenoid valves EVRC NC Introduction EVRC is a servo operated solenoid valve for use in liquid lines in refrigeration plant. EVRC allows flow in both directions and can therefore be used in liquid lines in refrigeration plant with hot gas or gas defrost. During the refrigeration period EVRC works as a normal solenoid valve, while during the defrost it allows the condensed liquid to return to the liquid manifold. During the defrosting period coil for EVRC must be energized. Technical data Refrigerants CFC, HCFC, HFC. Temperature of medium C with 10 W or 12 W coil. Ambient temperature and enclosure for coil See "Coils for solenoid valves", RD3JE. Capacity The capacity of the valve depends on the flow direction, see k v values from the table. See extended capacity tables as for EVR (data sheet RD3AD). Approvals Low Voltage Directive (LVD) 73/23/EC with amendments EN Rated capacity with normal flow direction 1 ) kw R 22 R 134a R 404A R 407C R 507 Opening differential pressure with standard coil p bar Max. (= MOPD) liquid Max. working pressure PB bar 1 ) Rated liquid capacity is based on evaporating temperature t e = 10 C, liquid temperature ahead of valve t l = +25 C, and pressure drop across valve p = 0.15 bar. 2 ) The k v value is the water flow in m 3 /h at a pressure drop across valve of 1 bar, ρ = 1000 kg/m 3. Min. 10 W a.c. 20 W d.c. Flow in arrow direction k v -value 2 ) m 3 /h Flow against arrow direction EVRC EVRC EVRC W a.c. Ordering Separate valve housing in. Connection Required coil Solder mm Code nr. Valve housing without coil EVRC 10 1 / 2 032F1216 a.c. EVRC 15 5 / F1255 d.c. EVRC 20 7 / F1258 Coils See "Coils for solenoid valves". For further information, please contact Danfoss. Danfoss A/S, Technical leaflet - RD3JC302 31

32 Solenoid valves, type EVRC NC Material specifications Standard No. Description Material Analysis Mat. no. W.no. DIN EN 1 Valve body Brass CuZn40Pb2 CW617N Cover Brass CuZn40Pb Armature tube Stainless steel X2 CrNi Gasket Gummi Cr 5 Solder tube Copper SF-Cu CW024A Screws Stainless steel A Dimensions and weight EVRC (NC) Coil with cable EVRC (NC) Coil with terminal box Weight of coil 10 W: ca. 0.3 kg 12 og 20 W: ca. 0.5 kg L 5 max. B H 1 H 2 H 3 L L 2 L 3 B 1 Weight 12 W 10 W max. with coil 20 W mm mm mm mm mm mm mm mm mm mm kg EVRC 10 (NC) EVRC 15 (NC) EVRC 20 (NC) For further information, please contact Danfoss. 32 Technical leaflet - RD3JC302 Danfoss A/S,

33 Stainless steel solenoid valves EVRS 3 20 and EVRST Introduction EVRS and EVRST are valves made of stainless steel. EVRS 3 is direct operated. EVRS 10, 15 and 20 are servo operated. EVRST 10,15 and 20 are forced servo operated valves used in liquid, suction, hot gas and oil return lines with ammonia or fluorinated refrigerants. EVRS 3 and EVRST are designed for keeping open at a pressure drop of 0 bar. EVRS and EVRST are supplied as components, i.e. valve body and coil must be separately ordered. EVRS/EVRST 10, 15 and 20 are equipped with spindel for manual opening. Features Stainless steel valve body and connections Suitable for applications where high hygiene is required Designed for temperatures of media up to 105 C Wide choice of a.c. and d.c. coils Used for ammonia and all fluorinated refrigerants Technical data Refrigerants R 717 (NH 3 ), R 22, R 134a, R 404A etc. Temperature of medium C. Max. 130 C during defrosting. Ambient temperature and enclosure for coil: See "Coils for solenoid valves", lit.no. RD3JE. Min. Opening differential pressure p bar Max. (MOPD) liquid 1 ) 10 W a.c. 12 W a.c. 20 W d.c. Temperature of medium Max. operating pressure PB k v value 2 ) C bar m 3 /h EVRS EVRS EVRST EVRS EVRST EVRST EVRST ) MOPD for media in gas form is approx. 1 bar greater. 2 ) The k v value is the water flow in m 3 /h at a pressure drop in the valve of 1 bar, ρ = 1000 kg/m 3. Danfoss A/S, Technical leaflet - RD3XA302 33

34 Stainless steel solenoid valves type EVRS 3 20 and EVRST Technical data (continued) Ratedcapacity 1 ) kw Liquid Suction vapour Hot gas R 717 R 22 R 134a R 404A R 717 R 22 R 134a R 404A R 717 R 22 R 134a R 404A EVRS EVRS/EVRST EVRS/EVRST EVRS/EVRST ) Rated liquid and suction vapour capacity is based on evaporating temperature t e = 10 C, liquid temperature ahead of valve t l = +25 C, and pressure drop across valve p = 0.15 bar. Rated hot gas capacity is based on condensing temperature t c = +40 C, pressure drop across valve p = 0.8 bar, hot gas temperature t h = +60 C, and subcooling of refrigerant t sub = 4 K. Ordering Separate valve bodies Weld in. Connection Pipe thread ISO 228/1 With manual operation Code no. Without manual operation EVRS 3 3 /8 032F3080 EVRS 3 G 1 /4 032F3081 EVRS 10 1 /2 032F3082 EVRST 10 1 /2 032F3083 EVRS 15 3 /4 032F3084 EVRST 15 3 /4 032F3085 EVRS F3086 EVRST F2237 Coils See "Coils for solenoid valves". Capacity Liquid capacity Q e kw Capacities are based on liquid temperature t l = + 25 C ahead of valve, evaporating temperature t e = 10 C, and superheat 0 K. Correction factors Liquid capacity Q e kw at pressure drop across valve p bar R 717 (NH 3 ) EVRS EVRS/EVRST EVRS/EVRST EVRS/EVRST EVRS EVRS/EVRST EVRS/EVRST EVRS/EVRST EVRS EVRS/EVRST EVRS/EVRST EVRS/EVRST EVRS EVRS/EVRST EVRS/EVRST EVRS/EVRST R 22 R 134a R 404A When sizing valves, the plant capacity must be multiplied by a correction factor depending on liquid temperature t l ahead of valve/evaporator. When the corrected capacity is known, the selection can be made from the table. t l C R 717 (NH 3 ) R 22, R 134a R 404A Technical leaflet - RD3XA302 Danfoss A/S,

35 Stainless steel solenoid valves type EVRS 3 20 and EVRST Capacity (continued) Capacities are based on liquid temperature t l = +25 C ahead of evaporator. The table values refer to the evaporator capacity and are given as a function of evaporating temperature t e and pressure drop p in valve. Capacities are based on dry, saturated vapour ahead of valve. During operation with superheated vapour ahead of valve, the capacities are reduced by 4% for each 10 K superheat. Suction vapour capacity Q e kw Pressure drop across valve p bar Suction vapour capacity Q e kw at evaporating temperature t e C R 717 (NH 3 ) EVRS/EVRST EVRS/EVRST EVRS/EVRST R EVRS/EVRST EVRS/EVRST EVRS/EVRST R 134a EVRS/EVRST EVRS/EVRST EVRS/EVRST R 404A EVRS/EVRST EVRS/EVRST EVRS/EVRST Correction factors When sizing valves, the evaporator capacity must be multiplied by a correction factor depending on liquid temperature t l ahead of expansion valve. When the corrected capacity is known, the selection can be made from the table. t l C R 717 (NH 3 ) R 22, R 134a R 404A Danfoss A/S, Technical leaflet - RD3XA302 35

36 Stainless steel solenoid valves type EVRS 3 20 and EVRST Capacity (continued) Hot gas capacity Q e kw Pressure drop across valve p bar Hot gas capacity Q h kw Evaporating temp. t e = 10 C. Hot gas temp. t h = t c + 25 C. Subcooling t sub = 4 K Condensing temperature t c C An increase in hot gas temperature t h of 10 K reduces valve capacity approx. 2% and vice versa. A change in evaporating temperature t e changes valve capacity; see correction factor table below. R 717 (NH 3 ) EVRS EVRS/EVRST EVRS/EVRST EVRS/EVRST R EVRS EVRS/EVRST EVRS/EVRST EVRS/EVRST Correction factors When sizing valves, the table value must be multiplied by a correction factor depending on evaporating temperature t e. t e C R 717 (NH 3 ) R R 134a Technical leaflet - RD3XA302 Danfoss A/S,

37 Stainless steel solenoid valves type EVRS 3 20 and EVRST Capacity (continued) An increase in hot gas temperature t h of 10 K reduces valve capacity approx. 2% and vice versa. A change in evaporating temperature t e changes valve capacity; see correction factor table below. Hot gas capacity Q h kw Pressure drop across valve p bar Hot gas capacity Q h kw Evaporating temp. t e = 10 C. Hot gas temp. t h = t c + 25 C. Subcooling t sub = 4 K Condensing temperature t c C R 134a EVRS EVRS/EVRST EVRS/EVRST EVRS/EVRST R 404A EVRS EVRS/EVRST EVRS/EVRST EVRS/EVRST Correction factors When sizing valves, the table value must be multiplied by a correction factor depending on evaporating temperature t e. t e C R 404A Danfoss A/S, Technical leaflet - RD3XA302 37

38 Stainless steel solenoid valves type EVRS 3 20 and EVRST Capacity (continued) An increase in hot gas temperature t h of 10 K reduces valve capacity approx. 2% and vice versa. Hot gas capacity G h kg/s Hot gas Condensing Hot gas capacity G h kg/s at pressure drop across valve p bar temperature temperature t h C t c C R 717 (NH 3 ) EVRS EVRS/EVRST EVRS/EVRST EVRS/EVRST R EVRS EVRS/EVRST EVRS/EVRST EVRS/EVRST R 134a EVRS EVRS/EVRST EVRS/EVRST EVRS/EVRST R 404A EVRS EVRS/EVRST EVRS/EVRST EVRS/EVRST Technical leaflet - RD3XA302 Danfoss A/S,

39 Stainless steel solenoid valves type EVRS 3 20 and EVRST Design/Function EVRS 3, pipe thread EVRS 3, weld 4. Coil 16. Armature 18. Pilot valve plate 20. Earth terminal 24. Connection for flexible steel hose 28. Gasket 29. Pilot orifice 36. DIN connector 40. Terminal box 43. Valve cover 44. O-ring 45. Valve cover gasket 49. Valve body 51. Cover 53. Manual operating spindle 73. Equalization hole 80. Diaphragm 82. Support washer 83. Valve seat 84. Main valve plate EVRS / EVRST 10 and 15 EVRST EVRS / EVRST 20 EVRS The solenoid valve design is based on three different principles: 1. Direct operation 2. Servo operation 3. Forced servo operation 1. Direct operation EVRS 3 is directly operated. The valve opens direct for full flow when the armature (16) moves up into the magnetic field of the coil. This means that the valve operates with a min. differential pressure of 0 bar. The valve plate (18) made of teflon and is fitted direct to the armature (16). Inlet pressure acts from above on the armature and with it the valve plate. Thus, inlet pressure, spring force and the weight of the armature act to close the valve when the coil is currentless. 2. Servo operation EVRS 10, 15 and 20 are servo operated with a "floating" diaphragm (80). The pilot orifice (29), which is of stainless steel, is placed in the centre of the diaphragm. The teflon pilot valve plate (18) is fitted direct to the armature (16). With the coil currentless, the main orifice and pilot orifice are closed. The pilot orifice and main orifice are held closed by the weight of the armature, the armature spring force and the differential pressure between inlet and outlet sides. When current is applied to the coil the armature is drawn up into the magnetic field and opens the pilot orifice. This relieves the pressure above the diaphragm because the space above the diaphragm becomes connected to the outlet side of the valve. The differential pressure between inlet and outlet sides then presses the diaphragm away from the main orifice which opens to full flow. Thus a certain minimum differential pressure is necessary to open the valve and keep it open. For EVRS 10, 15 and 20 valves this differential pressure is 0.05 bar. When current is switched off, the pilot orifice closes. Then the pressure above the diaphragm rises, via the equalization holes (73) in the diaphragm, to the inlet pressure and causes the diaphragm to close the main orifice. 3. Forced servo operation EVRST 10, 15 and 20 are forced servo operated solenoid valves. Forced servo operation differs from servo operation in that in a forced servo operated valve the armature and the diaphragm are connected by a spring. Thus the armature helps to lift the diaphragm (80) and keep it lifted so that the pressure drop in the open valve is the least possible. These types of valves therefore require no differential pressure to keep them open. Danfoss A/S, Technical leaflet - RD3XA302 39

40 Stainless steel solenoid valves type EVRS 3 20 and EVRST Material specification EVRS 3, Pipe thread EVRS 3, welded EVRS/ EVRST 10 and 15 EVRS/ EVRST 20 Solenoid valves Standard No. Description Material Analysis Mat.no. W.no. DIN EN 1 Valve housing EVRS 3 Stainless steel X8 CrNiS Welding tube EVRS (T) 10/15/20 Stainless steel X6 CrNi EVRS 3 Stainless steel X2 CrNiMo Cover EVRS (T) 10(15/20 Stainless steel X6 CrNi Armature tube EVRS(T) 3/10/15/20 Stainless steel X2 CrNi Armature tube nut EVRS(T) 3/10/15/20 Stainless steel X8 CrNi Gasket EVRS(T) 3/10/15/20 Rubber Cr 7 Gasket armature tube EVRS(T) 10/15/20 Al gasket Al Screws EVRS(T) 10/15/20 Stainless steel A Spindle for man. oper. EVRS(T) 10/15/20 Stainless steel X8 CrNiS Gasket EVRS(T) 10/15/20 Rubber Cr 40 Technical leaflet - RD3XA302 Danfoss A/S,

41 Stainless steel solenoid valves type EVRS 3 20 and EVRST Dimensions and weights Coil with cable EVRS 3, pipe thread EVRS 3, weld Coil with DIN plugs EVRS / EVRST 10 and 20 Coil with terminal box EVRS / EVRST 20 Coil with terminal box Weight of coil 10 W: approx. 0.3 kg 12 and 20 W: approx. 0.5 kg L 5 max. Weight 10 W 12 W with coil 20 W mm mm kg EVRS 3, pipe thread EVRS 3, weld EVRS/EVRST EVRS/EVRST EVRS/EVRST Danfoss A/S, Technical leaflet - RD3XA302 41

42

43 Coils for solenoid valves Introduction The coils are specially designed to operate in the aggressive environment of high humidity and temperature fluctuations that you find in most refrigeration systems. The new Clip-on fastening system ensures a faultless installation and makes the coils easy to mount and dismount. A Danfoss Clip-on coil can be mounted without any tools at all, and it is simple to dismount the coil by means of a screwdriver. The Clip-on coils are available for the entire range of Danfoss solenoid valves for refrigeration, freezing and air conditioning purposes. Features Encapsulated coils with long operating life, even under extreme conditions Standard coils for a.c. or d.c. Standard coils available with 3-core cable, terminal box or DIN plugs Standard coils from 12 V to 420 V, 50, 60 or 50/60 Hz Standard coils dimensioned for max. opening differential pressure (MOPD) of up to 21 bar Coils can be fitted without the use of tools Technical data Ambient temperature 10 or 12 W a.c. coil for NC (normally closed) valve: C 10 W a.c. coil for NO (normally open) valve: C 20 W d.c. coil for NC and NO valve: C Permissible voltage variation 10 and 12 W a.c. coils: % and as double frequency coils: ±10% a.c. coils for / V: +6 15% and as double frequency coils: +6 10% 20 W d.c. coils: ±10%. Enclosure IP 67 with cable or terminal box IP 20 with DIN plugs and protective cap IP 65 with DIN socket IP 00 with DIN plugs. Approvals See under the required solenoid valve. Connection 3-core cable The external thread in the screwed cable entry suits flexible steel hose or corresponding cable protection. Terminal box Leads are connected to terminal screws in the terminal box. The box is fitted with a Pg 13.5 screwed entry for 6 14 mm cable. Max. lead cross section: 2.5 mm 2. DIN plugs The three pins on the coil can be fitted with spade tabs, 6.3 mm wide (to DIN 46247). The two current carrying pins can also be fitted with spade tabs, 4.8 mm wide. Max. lead cross section: 1.5 mm 2. Use of the protective cap supplied will prevent inadvertent contact with live parts. DIN socket (to DIN 43650) Leads are connected in the socket. The socket is fitted with a Pg 11 screwed entry for 6 12 mm. Danfoss A/S, Technical leaflet - RD3JE202 43

44 Coils for solenoid valves Ordering Clip-on coils Valve type Voltage V Frequency Hz With 1 m 3-core cable IP 67 Code no. With With terminal box IP 67 DIN plugs and protective cap IP 20 With DIN plugs**) Power consumption Appendix no.*) Alternating current a.c F F F EVR 2 40 (NC) F F F F EVR 6 22 (NO) EVRC F F F EVRA F F F EVRAT EVRS / EVRST F F F F PKVD F F F F EVM (NC) F F F F F F F F F F F F F F F F F F F F F F /60 018F F F F /60 018F F F F Holding: 10 W 21 VA Inrush: 44 VA Direct current d.c. EVR 2 15 (NC) EVR (NC/NO) EVR 6 15 (NO) EVRC EVRA 3 15 (NC) EVRA (NC) EVRAT (NC) EVRS / EVRST 3 15 PKVD EVM (NC/NO) Coil type I F F F F F W F Direct current d.c. Coil type II EVR (NC/NO) F EVRC 20 EVRA F EVRAT F EVRST F W F F See "Opening differential pressure" under "Technical data" for the valve concerned. *) Indicates voltage and frequency **) Can only be used with DIN socket ***) When replacing a coil with terminal box, it is sufficient to change the coil unit itself. Therefore, order coil with DIN plugs and protective cap. 44 Technical leaflet - RD3JE202 Danfoss A/S,

45 Coils for solenoid valves Ordering (continued) Special coils Valve type Voltage V Frequency Hz Code no. With terminal box IP 67 Appendix no. Indicates voltage and frequency Power consumption Alternating current a.c. EVR 3 40 EVRC EVRA EVRAT EVRS / EVRST PKVD EVM (NC / NO) F F F F F F F F F F Holding: 12 W 26 VA Inrush: 55 VA See "Opening differential pressure" under "Technical data" for the valve concerned. When replacing a coil with terminal box, it is sufficient to change the coil unit itself. Therefore, order coil with DIN plugs and protective cap. Accessories Description DIN socket Terminal box with build-in light emmiting indicator diode for solenoid valves Dimensions and weights See under the required solenoid valve. Code no. 042N Z0089 Danfoss A/S, Technical leaflet - RD3JE202 45

46 Coils for use in EX zone 2 EEx na II T3 Introduction Danfoss has developed a series of ATEX approved coils for use in EX zone 2. The coils are equipped with clip-on fastening system for easy and faultless installation. Thus the coil can be installed without use of tools and easily dismounted by means of a screwdriver. Features ATEX approved for use in EX zone 2 Embedded coils with long lifetime - even under extreme conditons Available with 1 m 3-core cable or terminal Quick and safe mounting with "clip-on"coil Mounting on valve without use of tools Standard coils for a.c. and d.c. Standard coils from 24 to 240 V Standard coils dimensioned to max. opening differential pressure (MOPD) up to 21 bar Approval EExnAIIT3 DEMKO 01 ATEX X Technical data Ambient temperature 11 or 14 W, 50 Hz a.c. coil C 13 W, 50/60 Hz a.c. coil C 20 W d.c. coil C Temperature of medium max. 105 C Enclosure for coil IP 67 Permissible voltage variation 11 and 14 W a.c. coils: % and as double frequency coils: ±10% 20 W d.c. coils: ±10% Connections 3-core cable The external thread of the cable entry is suitable for flexible steel hose or similar cable protection Terminal box The cables are connected with the terminal screws in the terminal box which is equipped with a Pg 13.5 cable gland for 6 14 mm cable. Max. cable diam.: 2.5 mm 2 46 Technical leaflet - RD3JE202 Danfoss A/S,

47 Coils for use in EX zone 2 EEx na II T3 Ordering Coils Voltage Frequency Code no. V Hz With 1 m With Power 3-core cable terminal box consumption IP 67 IP 67 Alternating current a.c. EVR 2 40 (NC) F F5707 EVR 6 22 (NO) F F5709 Holding: EVRC F F W EVRA/ EVRAT F F VA EVRS/ EVRST F F5702 PKVD Inrush: EVM (NC) 44 VA /60 018F F5732 Holding: 24 50/60 018F F W 25 VA Inrush: 48 VA Alternating current a.c. EVR 2 40 (NC) F5807 Holding: EVR 6 22 (NO) F W EVRC F VA EVRA/ EVRAT F5801 Inrush EVRS/ EVRST F VA PKVD EVM (NC) Direct current d.c. EVR 2 15 (NC) F5857 EVR (NC/NO) EVR 6 15 (NO) EVRC EVRA 3 15 (NC) EVRA (NC) EVRAT (NC) EVRS/ EVRST 3 15 PKVD EVR (NC/NO) 20 W Must always be installed with fuse ahead of coil Danfoss A/S, Technical leaflet - RD3JE202 47

48 UL - approved coil, type GP Introduction With the Danfoss general purpose coils, type GP, for solenoid valves the mounting with a "click-on". Danlok TM makes mounting faster and easier and keeps the coil safely in place. Features Easy mounting and dismounting No loose parts during operation Suitable to all standard solenoid valves Available with junction box or conduit boss Approvals S UL listed with EVR, MH 7648 A CSA certified, SA Technical data Enclosure junction box: NEMA 2 ~ IP Conduit boss: NEMA 4 ~ IP 54 Ordering Connection Cable length Voltage Frequency Code.no Power in. V Hz consumption Alternating current a.c. Junction box Conduit coil Junction box 120/ /60 018Z7600 Holding Junction box 24 50/60 018Z W Junction box 110/120 50/60 018Z VA Junction box 208/240 50/60 018Z7611 Conduit boss /60 018Z7623 Conduit boss /120 50/60 018Z7622 inrush Conduit boss /240 50/60 018Z VA 48 Technical leaflet - RD3JE202 Danfoss A/S,