Installation guide
Solenoid valve
Types EVR 2 – EVR 22 (NC/NO)
EVR 22 Solenoid Valve
Refrigerants:
R22/R407C, R404A/R507, R410A, R134a, R407A, R23, R32, R290, R600, R600a.
For other refrigerants, contact Danfoss.
Note: Only EVR 2 – EVR 20 with solder connections and without manual stem are suitable for R32, R290, R600 and R600a.
For refrigerants type R32, R290, R600, R600a always use coils with protection degree IP65 or IP67.
An external current fuse ( rated current of fuse should be around two times of coil rated current, fuse type: medium time lag) shall always be installed ahead of coils to prevent sparks, arcs, over heat, or short circuit (except ATEX coils).
Coil and O-ring
A: Be sure that the O-ring is in place
B: Sticker applies only to UL products
Warning
Never switch on power to the coil when the coil is dismounted from the valve. Otherwise the coil may be damaged and there is risk of injuries and burns.
Electrical connections
| Max. coil temperature | |
| 9 W AC (EVR 2) | tmax = 40 °C |
| 10/12 W AC | tmax = 80 °C |
| 20 W DC | tmax = 50 °C |
| 10 W AC | tmax = 55 °C |
| Media temperature | |
| Min. medium temperature | tmin. = -40 °C |
| Max. medium temperature | tmax = 105 °C |
| EVR 2 – EVR 8 [bar] | EVR 10 [bar] | EVR 15 – EVR 22 [bar] | |
| Max. working pressure PS/MWP | 45.2 | 35 | 32 |
| Max. operating diff. pressure (MOPD) | Coil dependent | ||
Flare mounting
Mounting / dismounting coil
Service only
Mounting / dismounting of top part
| Type | [Nm] | [kpm] | [ft-Ibs] | Torx size |
| EVR 2, EVR 3 | 1.4 | 0.15 | 1 | T15 |
| EVR 4, EVR 6, EVR 8 | 2.0 | 0.2 | 1.44 | T15/T20 |
| Type | [Nm] | [kpm] | [ft-Ibs] | Torx size |
| EVR 10, EVR 15, EVR 18 | 2.8 | 0.3 | 2 | T15 |
| EVR 20, EVR 22 | 12 | 1.2 | 9 | T40 |
Placement of valve seat
EVR 4 – EVR 8 dismounting gasket and supporting ring: Press and twist
© Danfoss | DCS (sw) | 2016.02
DKRCC.PI.BB0.T2.02 | 2
Documents / Resources
 |
Danfoss EVR 22 Solenoid Valve [pdf] Installation Guide EVR 2, EVR 22, EVR 22 Solenoid Valve, Solenoid Valve |