Danfoss WVS 32 Installation Manual

Installation guide
Pressure operated water valve
WVS 32 – WVS 100
WVS 32
Fig. 1
Fig. 4
ENGLISH
Pressure operated water valve,
types WVS 32 – WVS 100
Technical data
Media
R22, R1270, R134a, R290, R404A,
R407A, R407C, R407F, R410A*,
R448A, R449A, R450A, R452A,
Refrigerant side
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 = 29 bar = 2900 kPa
e
R410a/R744 (CO ) P = 60 bar = 6000 kPa
2 e
Water side P = 16 bar = 1600 kPa
e
Opening differential pressure
Min. 0.5 bar = 50 kPa
WVS 32 – WVS 40
Max. 4 bar = 400 kPa
Min. 0.3 bar = 30 kPa
WVS 50 – WVS 100
Max. 4 bar = 400 kPa
For complete list of approved refrigerants,
visit www.products.danfoss.com
for individual code numbers, where
refrigerants are listed as part of technical
data.
© Danfoss | DCS (az) | 2018.02
WVS 40
19
18
Fig. 2
Fig. 5
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
and search
**) See table Fig. 6

Assembly

Screws connecting pilot unit with
valve body to be tighten with 8.5 Nm.
WVS 50 - WVS 100
19
16
17
Fig. 3

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.
9
DKRCC.PI.DA0.A8.52 | 1