Danfoss EVR 2 - User Manual

Coil and O-ring
A
B
Installation Guide
Solenoid Valve
Types EVR 2 – 22 Normally Closed/Normally Open (NC/NO)
© Danfoss A/S (RC-MDP/RJA), 2014-06 DKRCC.PI.BB0.T1.02 / 520H8766 1
032R9545 032R9545
Refrigerants:
R22/R407C, R404A/R507, R410A, R134a, R407A, R23.
For other refrigerants, please contactDanfoss.
EVR (NC are) EVR (NC solder) EVR (NC ange) EVR (NO solder)
Note:
tube construction
max. 100 °C (212 °F)
On
O
On
O
max. 700 °C (1300 °F)
EVR 2 – 8 EVR 10 PB EVR 15 – 22 PB
Max. working
pressure PS/MWP
45.2 bar
(656 psig)
35 bar
(508 psig)
32 bar
(464 psig)
Max. operating
di. pressure
(MOPD)
UL products – see sticker
Non UL – see armature tube
Media temperature
Min. medium temperature t
min.
= -40 °C (-40 °F)
Max. medium temperature t
max.
= 105 °C (221 °F)
Max. coil temperature
9 W a.c. (EVR 2) t
max.
= 40 °C (105 °F)
10/12 W a.c. t
max.
= 80 °C (175 °F)
20 W d.c. t
max.
= 50 °C (120 °F)
10 W a.c. t
max.
= 55 °C (130 °F)
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.
A: Be sure that the O-ring
is inplace
B: Sticker applies only
to UL products
Mounting directions
Flare mounting
Electrical connections
Mounting / dismounting coil
Soldering

Danfoss EVR 2 Specifications

General

Housing Material	Plastic
Valve Type	Solenoid Valve
Power Supply	24 V AC/DC
Control Signal	PWM (Pulse Width Modulation)
Storage Temperature	-20°C to +70°C
Weight	0.2 kg

Summary

Solenoid Valve Installation

Product Overview and Refrigerants

Details on Solenoid Valve types EVR 2-22 NC/NO and compatible refrigerants.

Mounting and Soldering

Instructions for valve mounting directions, soldering, and flare mounting.

Coil and Electrical Connections

Guidance on coil installation, O-ring placement, and electrical connections.

Top Part and Valve Seat Assembly

Procedures for mounting and dismounting the valve's top part and seat.