Danfoss EVR 6 Manuale di installazione - Pagina 2

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Disassembly and assembly of EVR version 2

Mounting / dismounting of top part

EVR 2 – EVR 8

Type

[Nm]

EVR 2, EVR 3,

3.0

EVR 4, EVR 6, EVR 8

Mounting of support washer

EVR 2 – EVR 3 (NC)

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).

Note!

Always use

cross-tightening

[kpm]

[ft-lbs]

Torx size

0.3

2.2

EVR 4 – EVR 8 (NC)

EVR 10 – EVR 22 (NC)

Mounting / dismounting of top part

EVR 10 – EVR 22

Type

EVR 10, EVR 15, EVR 18

T15

EVR 20, EVR 22

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.

EVR 4 – EVR 8 (NO)