Initial Commissioning; Filling With Water; Turning On The Power; Emptying Of Water - OSO HOTWATER Wally Series Installation Manual

4. INITIAL COMMISSIONING

4.1 Filling with water

First check that all pipes are connected correctly.
Then proceed as follows:
A) Open a hot tap – leave it open
B) Open the cold water supply to the product.
Check that the water from the open hot water tap
is flowing freely, without any air locks.
A) Close hot tap.

4.2 Turning on the power

When the cylinder has been filled with water, the
power can be switched on.
A) Insert plug into specified wall socket or turn on
switch/breaker.
4.3 Temperature adjustment of tap water
The outgoing hot water temperature from the
product to the taps in the home is mixed auto-
matically. The home is supplied with water that
maintains a temperature approx. 10°C lower than
the set temperature of the thermostat. For tem-
perature adjustment, see section 5.1.1.
4.4 Checkpoints (min. annual)
A) Check that all pipe connections to/from the
product are tight and not leaking.
B) Check that the power supply to the product is
not at risk of exposure to mechanical, thermal or
chemical damage.
C) Check that any overflow pipe from the safety
valve overflow (2) is clear, undamaged and frost-
free with a fall to the drain.
D) Check that the product is hanging securely ver-
tically and horizontally.

4.5 Emptying of water

The water temperature in the product is up to
90°C and could cause scalding. Before emptying,
a hot tap should be opened to the max. pressure/
temperature for min. 3 minutes.
A) Disconnect the power supply.
B) Shut off incoming cold water supply.
C) Open a hot
– leave open (prevents a vacuum).
D) Twist the knob on the safety valve (1) approx.
90 degrees anti-clockwise to the open position.
Product emptied. After emptying, close the
12
! WARNING
tap to the maximum
safety valve by turning the knob (1) further
anti-clockwise. Then close all open taps.
1
2
3
4
5

4.6 Handover to end-user

THE INSTALLER MUST:
Brief the end-user on safety and maintenance
instructions.
Brief the end-user on settings and emptying the
product.
Hand this installation manual over to the end-
user.
Enter contact details on the type plate on the
product.
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