Rinnai Zen I24 User And Installation Manual page 21

1.4.10 ENERGY MONITOR
The Energy monitor of the WiFi thermostat consents to monitor some boiler's parameters concerning the storage time
of the main CH and DHW modes and gas consumption.
The monitor shows values that can change depending on the usage of the boiler, on the season and the gas pressure.
If other gas-driven devices are installed, the values on the monitor may be different from the values detected by the
direct reading of the gas meter.
To use the Energy monitor follow the procedure:
•
Press the button
•
Press the button
The figures on the Energy monitor can be cancelled by pressing & holding the
button (1) for three seconds.
The menus of the Energy monitor will appear on the display:
Days of use
1.4.11 ANTIFROST PROTECTION
The boiler is equipped with an automatic anti-frost mode that protects the heating circuit from the cold temperatures,
together with the circuit that produces hot domestic water for the device.
If the heating circuit temperature drops to 6°C (or the temperature in the boiler's location drops to 3°C), a first level of
protection activates a pump. This operation makes the water flow through the heating circuit and through the domestic
water circuit.
If the heating circuit's temperature falls below 5°C, a second level of protection also activates the boiler, for a maximum
of 60sec. (or until the temperature in the circuit get back to 55°C for 2 sec. at least)
If the heating circuit temperature falls to 2°C (or the temperature in the environment where the boiler is installed falls
to 5°C), electrical resistors are activated to protect the domestic water circuit only.
The symbol
resistances are activated.
IMPORTANT
When the boiler activates the circulating pump or briefly turns on the burner, the symbol
starts blinking on the display.
If temperature drops below 0°C, the thermostat warns the customers by making beeping noises
on an hourly basis: in such a situation, the boiler may freeze, getting irreparably damaged; it is
recommended to improve its isolation condition and to provide more antifrost protection.
In conditions of normal operation, the boiler is protected until -20°C: only if the device is
appropriately powered with proper gas flow and electrically powered, if the boiler is constantly
powered and turned on, the boiler is not blocked and the appliance is not damaged. Particular
attention to the condensate drainage system is required in order to protect it from freezing.
If the device is in danger of freezing because of very low temperatures, it should not be used during
extended periods. It is recommended to make it safe by draining the boiler completely.
Frost/freezing damages are not covered by the guarantee.
(1). Energy monitor will appear on the display :
(1) repeatedly to cycle through the parameters :
Days of Hours Hours
► ► ►
use CH DHW consumption
Hours of burner ignition in:
heating (CH);
hot water production (DHW)
(fixed) is showed on the display of the thermostat when antifrost electrical
► OFF
Gas
21
AUTO
MENU TIMER
SAVE
Gas consumption:
methane and propaned air in m
LPG and propane in Kg
1
3
;