User Guide; Settings; Maintenance - OSO HOTWATER Wally W 30 Installation Manual

5. USER GUIDE

5.1 Settings

5.1.1 Thermostat setting
The product thermostat is adjustable from 50-
75°C. The thermostat should not be set lower
than 60°C to prevent bacteria growth. To adjust
the temperature, the knob (5) should be used. The
knob is connected to the temperature setting (8)
on the thermostat:
Adjust the thermostat temperature setting up or
down as desired by turning the knob towards plus
(+) or minus (-). Knob turned all the way to plus
will give approx. 75°C in the heater. Knob turned
all the way to minus gives approx. 50°C.
Changing the temperature setting on the thermo-
stat changes the temperature of the water in the
tank. Increasing the temperature of the tank will
result in a higher available hot water volume.
The product is designed with automatic mixing of
the tap water and will supply the home with hot
water at a temperature approx. 10°C below the set
temperature set on the thermostat.
5.1.2 Resetting the safety thermostat
The safety thermostat on the product cuts out
when there is a risk of overheating. This is reset
by disconnecting the power supply and removing
the cover - pull out the adjustment knob (5) and
loosen the screw (6) securing the cover (4). Then
press the red "RESET" button (7). If the thermostat
cuts out repeatedly, contact the installer.
The cover panel and adjustment knob must be
refitted before the power is switched on.

5.2 Maintenance

Maintenance must be carried out by persons over 18 years of age, with sufficient under-
!
standing.
!
Annual inspection of safety valve:
- Open valve for 1 min. by turning the knob (1) approx. 90 degrees to the open position.
- Visually check that the water is flowing freely to the drain.
YES = OK. Close the valve by turning the knob (1) a further 90 degrees to the closed
-
position.
- NO = NOT OK. Disconnect power supply / shut off water supply. Contact installer.
Constant voltage present in the junction box. Be-
fore any electrical work is done, the power supply
must be disconnected and secured against acti-
vation while the work is in progress.
MAINTENANCE INSTRUCTIONS
! WARNING
1
7
2
1
THERM-O-DISC
2
8
3
4
5
1
13