Installation guide
Pressure operated water valve
WVS 32 – WVS 100
016
R9
55
6
016
R9
55
6
© Danfoss | DCS (az) | 2018.02
DKRCC.PI.DA0.A8.52 | 1
WVS 32
WVS 40
WVS 50 - WVS 100
16
17
18
19
19
9
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
ENGLISH
Pressure operated water valve,
types WVS 32 – WVS 100
Technical data
Media
Refrigerant side
R22, R1270, R134a, R290, R404A,
R407A, R407C, R407F, R410A*,
R448A, R449A, R450A, R452A,
R507A, R513A, R600, R600a, R717
* High pressure refrigerants version
(45, 2 MWP) only
Water side
Fresh water and brine
Max. test pressure
Refrigerant side
P
e
= 29 bar = 2900 kPa
R410a/R744 (CO
2
)
P
e
= 60 bar = 6000 kPa
Water side
P
e
= 16 bar = 1600 kPa
Opening differential pressure
WVS 32 – WVS 40
Min. 0.5 bar = 50 kPa
Max. 4 bar = 400 kPa
WVS 50 – WVS 100
Min. 0.3 bar = 30 kPa
Max. 4 bar = 400 kPa
For 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.
Fig. 1–3
1. Flare connection
2. Weld nipple
3. Bellows element
4. Push rod
5. Regulating nut
6. Top part
6a. Cover
7. Pilot insert
8. Spindle
9. Teflon sleeves
10. Insulating disc
10a. Gasket
12. Valve cover
15. Servo piston
*)
16. Bottom screw
17. Drain plug
18. Gasket
19. Strainer assembly, complete *)
20. Self-cleaning strainer
21. Pilot nozzle
24. Servo spring
**)
*) Please state valve size
**) See table Fig. 6
Assembly
Screws connecting pilot unit with
valve body to be tighten with 8.5 Nm.
Fitting
WVS is to be fitted in the cooling water
inlet with flow in the direction of the
arrow and with the bellows element
facing upwards. It is recommended
that a strainer should be inserted
before the valve.
The bellows element is to be
connected to the pressure side of
the refrigeration system at a point
where pressure pulsations from the
compressor do not affect the valve,
e.g. on the top of the condenser or
after the oil separator. The pressure
line must be connected so that
impurities cannot enter it. See Fig. 5.
Do not remove white insluting disk
(10). It needs to be always fitted
between pilot element and valve
housing.
Setting
Remove the cover (6a).
WVS can be set to begin opening
at a condensing pressure of
min. 2.2 bar = 220 kPa and
max. 19 bar = 1900 kPa.
