Danfoss EVR 2 Solenoid Valve Installation Guide

Danfoss EVR 2 Solenoid Valve

Specifications

• Product Name: Solenoid Valve Types EVR 2 – EVR 22 (Version 2)
• Connection Types: NC solder, NC flare, NC flange, NO solder
• Refrigerants: R22/R407C, R134a, R404A/R507, R410A, R407A, R32, R290, R600, R600a, R1234yf, R1234ze, R407F, R125, R152A, R448A, R449A, R452A, R450A
• Working Pressure: EVR solder and flare connections – 45.2 bar; EVR flange connections – 32 bar
• Max. Opening Differential Pressure (MOPD): Coil dependent
• Power: 110-120V 60Hz 15W / 110V 50Hz 16W

Product Usage Instructions

Mounting the Solenoid Valve

1. Always ensure power is disconnected from the coil before \mounting or dismounting the valve to prevent damage or injuries.
2. Follow the specific instructions for mounting based on the type of EVR valve being used.

Disassembly and Assembly

1. For EVR Version 2, follow the disassembly and assembly instructions as provided in the manual.
2. Use the correct torque values and Torx sizes for tightening screws during assembly.

Maintenance and Safety

1. Regularly check for leaks and proper functioning of the solenoid valve.
2. If maintenance is required, always follow the recommended procedures provided by the manufacturer.

FAQ

• Q: Can this solenoid valve be used with all listed refrigerants?
  • A: Yes, the Solenoid Valve Types EVR 2 – EVR 22 (Version 2) can be used with all the listed refrigerants mentioned in the manual.
• Q: What is the recommended power input for this solenoid valve?
  • A: The recommended power input for this solenoid valve is 110-120V at 60Hz with a power consumption of 15W.
• Q: Is it necessary to use a support washer during installation?
  • A: Yes, it is recommended to use a support washer during installation to ensure proper mounting of the solenoid valve.

Types

Types EVR 2 – EVR 22 (Version 2)

Refrigerants

R22/R407C, R134a, R404A/R507, R410A, R407A, R32, R290, R600, R600a, R1234yf, R1234ze, R407F, R125, R152A, R448A, R449A, R452A, and R450A. For a complete list of approved refrigerants, visit www.products.danfoss.com and search for individual code numbers, where refrigerants are listed as part of technical data.

Special note for R32, R152A, R290, R600, R600a, R1234yf, and R1234ze:

• This product is validated in accordance to ATEX, ISO 5149, IEC 60335, and UL.
• Ignition risk is evaluated in accordance to ISO 5149, and IEC 60335.

Max. working pressure

• EVR solder and flare connections: 45.2 bar.
• EVR flange connections: 32 bar.

Media temperature: -40 °C / -40 °F – 105 °C / 221 °F Max. opening diff. pressure (MOPD): Coil dependent

Mounting

Soldering

Mounting angle

Always disconnect power from the coil when dismounted from the valve. The coil may be damaged and there is risk of injuries and burns.

ID Marking – example

Valve identification and reference to UL-listed coils

• The general-purpose valve consists of Body EVR 6 NC 032L1212
• AND COIL BJ OR BX
• Max.Media temp 221 °F
• MOPD 550psi PS45,2/SWP655
• MADE IN DENMARK BR20 366E
• Danfoss A/S 6430 Nordborg Denmark

MADE IN DENMARK

Type BJ120CS

Spare part no.

• 110-120V 60Hz 15W
• 110V 50Hz 16W

To be used with listed valve body EVR•EVRH•EVRC•EVRP•EV2xx series AKV•AKVA

See the armature tube or label 018F4110

The EVR 2 – EVR 22 with solder connections and without manual stem can be applied on systems with R32, R152A, R290, R600, R600a, R1234yf, and R1234ze as the working fluid. For countries where safety standards are not an indispensable part of the safety system, Danfoss recommends the installer to get a third-party approval of the system containing flammable refrigerant. Note, please follow the specific selection criteria stated in the datasheet for these particular refrigerants.

Disassembly and assembly of EVR version 2

Mounting/dismounting of the top part

EVR 2, EVR 3,

EVR 4, EVR 6, EVR 8

| 3.0| 0.3| 2.2| T15

Mounting / dismounting of top part

Mounting of support washer

Special for EVR 4 – EVR 8:

Dismounting gasket and supporting ring

Caution!

For EVR 2 – EVR 3, and EVR 10 – EVR 22, a screwdriver might be needed for removal of the gasket. Be careful not to scratch the gasket surface

Manual operation for pressure testing and service-related operation:

Only use the manual stem operation of the EVR NC valve during initial pressure testing of the refrigeration system or during service-related manual operation. Remove the protective cap and rotate the manual stem clockwise approx. 6 cycles from fully closed to fully open position. After the manual operation is completed, ensure to rotate the manual stem counter-clockwise back to fully closed position and re-mount the protective cap before connecting the valve to automatic operation. MOPD for the manual operation function is 5 bar. Alternatively, all EVR NC and NO valves can be manually operated by removing the coil and forcing the valve open or closed by using a solenoid valve tester (permanent magnet).

References

• Danfoss Global Product Store | Homepage

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