Rinnai Zen I24 User And Installation Manual page 22

1.4.12 EMERGENCY BUTTON
The boiler is equipped with an 'emergency button', which is situated at the
base of the boiler casing, the use of which consents to use the boiler in
critical conditions, within the proper limits.
If the WiFi thermostat is malfunctioning, it is possible to start the device and
make it work as follows:
•
discharge temperature of the heating installation to 52°C;
•
domestic hot water temperature to 40°C.
It is not recommended to use the emergency button under normal conditions.
You can turn on the emergency switch if Rinnai thermostat is broken, so that
you don't find yourself with no heating and domestic hot water. Call your
local gas registered installer and/or CHNZ in order to repair or replace the
appliance.
BOILER DISPLAY ( INTEGRATED CONTROL PANEL )
1.4.13
The boiler is equipped with an integrated control panel at the bottom of the front panel on the boiler. The Boiler display
functioning instructions are described below.
Heating function (CH)
Press the button to activate the heating function(1):
The boiler display LED will light up. They indicate that:
Press repeatedly the button to raise the temperature up
deactivate the heating mode, hold down the button
When the WiFi thermostat is connected and the boiler works in room temperature mode, it will not be possible to
modify the flow temperature. This symbol will appear on the Boiler display:
The display shows the selected discharge temperature: To see the 'actual' flow temperature, keep pressed the button
for a second. The display will show the discharge temperature, temporarily (10 seconds).
Domestic hot water function (DHW)
To activate the domestic hot water function, press button (1):
The DHW function is handled in a similar manner to the CH mode which was
previously described. The LEDs have the same meaning.
Antifrost function - Boiler display
If the temperature in the boiler drops to 0°C, antifrost mode is activated.
The LEDs of CH and DHW modes will start blinking (until the alarm
is deactivated). The Boiler display will emit a repeated noise, every hour.
The acoustic alarm ceases when the boiler activates the burner, in order to
avoid freezing. The LEDs will keep on blinking.
- The heating mode is activated;
- The boiler's burner is on.
for a few seconds.
until the display shows the intended temperature. To
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