Pipe Installation - OSO HOTWATER Wally-W 30 Manuel D'installation

3.5 Pipe installation

The product is designed to be permanently con-
nected to the mains water supply. Approved pipes
of the correct size should be used for installation.
The relevant standards and regulations must be
followed.
HOT WATER
Product.
(conn. 1)
15 mm
W 30-100
comp.
3.5.1 Incoming water pressure
The efficiency of the product depends on the in-
coming cold water pressure. The water pressure
should be min. 2 bar and max. 6 bar throughout the
day. Excessive water pressure can be adjusted by in-
stalling a pressure reduction valve.
3.5.2 Installation of cold and hot water pipes and
overflow pipe
A) Remove the front and base vanity covers (4) by
carefully pulling them off. Connect the hot water
pipe to the ø15 mm HW compression ring fitting
(1). Connect the cold water supply to the ø15 mm
CW compression ring fitting (2). Tighten both to
the correct torque (see 3.5.3).
B) If an overflow pipe (7) is fitted, connect > 18
mm inside to the overflow on the safety valve (3);
• Use the ø15 mm compression ring fitting
with an adapter to an ø18 mm inside diam-
eter pipe, or remove the nut and compres-
sion ring to connect the overflow pipe to the
1/2" outside thread.
• The overflow pipe (7) must be uninterrupta-
ble, frost free and sloping to a suitable drain
or gulley.
All pipe connections shall be checked for leaks when
water is turned on, and again after approx. 3 months
of operation. Then annually. Refit the front and
base vanity covers (4) before starting up.
3.5.3 Torque settings
Component
Compression ring on CW/HW conn.
Compression ring on safety valve
8
Overflow
COLD WATER
(conn. 2) (conn. 3)
15 mm 15 mm
comp. comp.
Torque settings
20 Nm (+/- 3)
20 Nm (+/- 3)
Conn. to
boiler
15 mm
comp.
4
3
- +
Rear
3 2 1
7
7