Danfoss EVR 2, EVR 22 Installation guide
Installation guide
B
Danfoss
68F815.10
Solenoid valve
Types EVR 2 – EVR 22 (Version 2)
NC solder NC flare NC flange NO solder
032R9602
Note:
tube design
032R9602
Refrigerants
R1234yf, R1234ze(E), R125, R134a, R152a, R22, R290, R32, R404A, R407C,
R407F, R407H, R410A, R413A, R417A, R422A, R422B, R422D, R438A,
R422A, R422B, R422D, R438A, R442A, R444B, R447A, R447B, R448A,
R449A, R449B, R450A, R452A, R452B, R454A, R454B, R454C, R455A,
R463A, R507A, R512A, R513A, R513B, R515A, R515B, R516A, R600, R600a.
For complete list of approved refrigerants, visit https://store.danfoss.com
and search for individual code numbers, where refrigerants are listed as
part of technical data.
Note
Pick up valves carefully from package.
Filter
Filter drier is always recommended in customer system.
Special note for R1234yf, R1234ze, R152A, R290, R32, R444B,
R452B, R454A, R454B, R454C, R455A, R516A, R600 and
R600a:
The EVR 2 – EVR 22 with solder connections and without manual stem
is validated in accordance to ATEX, ISO 5149, IEC 60335-2-24,
IEC 60335-2-40, and UL. Ignition risk is evaluated in accordance to
ISO 5149, and IEC 60335.
NOTE 1: EVR 2-15 flare connections are only approved for A1 and A2L
refrigerants.
NOTE 2: Excluded from this EVR 22 with connections 1 3/8 inch /
35 mm related to PED requirements.
Media temperature: -40 °C / -40 °F – 105 °C / 221 °F
Mounting
Soldering
Flare
Max. working pressure
EVR solder and flare connections: 45.2 bar.
EVR flange connections: 32 bar.
EVR PED version: 49 bar.
(Approved max. working pressure is marked on the armature tube)
Note
Avoid reverse flow in EVR (except EVRC) to avoid unstable
function or long term damage of valve.
Bar
49 bar
45.2 bar
32 bar
3
-40 0
°C
Max. working pressure in bar in relation to media temperature in °C.
Max. opening diff. pressure (MOPD): Coil dependent
Mounting angle
Max. 700 °C / 1300 °F
Max. 100 °C / 211 °F
Always disconnect power from the coil
when dismounted from the valve. The
coil may be damaged and there is risk of
injuries and burns.
O-ring
mandatory
Click!
Off
ID Marking - example
Valve identification and reference to UL
listed coils
General-Purpose Valve consists of
Body EVR 6 NC 032L1212
AND COIL BJ OR BX
TS: -40 °C/+105 °C (-40 °F/+221 °F)
MOPD: 38 bar / 550psi
PS (UL): 45.2 bar / SWP 655 psi
PS (PED): 49 bar
MADE IN DENMARK BR20 366E
Danfoss A/S 6430 Nordborg Denmark
317R
Recommended
to reduce
vibrations, not
required for sealing
Spare part no.
110-120V 60Hz 15W
110V 50Hz 16W
To be used with listed valve body
EVR•
EVRH
AKV•AKVA
See armature tube or label
A
32F905.10
Danfoss
MADE IN DENMARK
Type BJ120CS
018F4110
•EVRC•EVRP•EV2xx series
Coil print
Click!
The EVR 2 – EVR 22 with solder connections and without manual stem can be applied on systems with R1234yf, R1234ze, R152A, R290, R32,
R444B, R452B, R454A, R454B, R454C, R455A, R516A, R600 and R600a as the working fluid. EVR 2-15 flare connections are only approved for
A1 and A2L refrigerants. . For countries where safety standards are not an indispensable part of the safety system Danfoss recommend the
installer to get a third party approval of the system containing flammable refrigerant. Note, please follow specific selection criteria stated in the
datasheet for these particular refrigerants.
© Danfoss | DCS (rm) | 2020.11
AN238486497127en-000704 | 1
Danfoss
32F966.10
Danfoss
32F965.10
Disassembly and assembly of EVR version 2
Mounting / dismounting of top part
EVR 2 – EVR 8
4
1
2
3
Note!
Always use
cross-tightening
Typ e [Nm] [kpm] [ft- lbs] Torx size
EVR 2, EVR 3,
EVR 4, EVR 6, EVR 8
3.0 0.3 2.2 T15
Mounting of support washer
Mounting / dismounting of top part
EVR 10 – EVR 22
4
2
Note!
Always use
cross-tightening
Typ e [Nm] [kpm] [ft-lbs] Torx size
EVR 10, EVR 15, EVR 18
10 1 7.4 T30
EVR 20, EVR 22 30 3 22.1 T45
1
3
Special for EVR 4 – EVR 8:
Dismounting gasket and supporting ring
B
A
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.
EVR 2 – EVR 3 (NC) EVR 4 – EVR 8 (NC) EVR 10 – EVR 22 (NC) EVR 4 – EVR 8 (NO) EVR 10 – EVR 20 (NO)
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 force the valve open or closed by using a
solenoid valve tester (permanent magnet).
© Danfoss | DCS (rm) | 2020.11
AN238486497127en-000704 | 2
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