15
2) Press the
TIMER
button to set the number of vacation days. Press
▲ or ▼
to
select the number of vacation days from 3 to 120 days and press the
TIMER
button to
confirm setting. Then press
▲ or ▼
to start or cancel the VACATION function.
When the VACATION function is started under the On state, the water heater
calculates the number of vacation days accumulatively. And the STERILIZE function
will be started to sterilize the water tank one day before the vacation is over. In addition,
hot water is prepared by advance in the HOTWATER before the vacation is over.
Note:
①
When time goes from 23:59 to 00:00, the system enters a new day, which is the
basis for increasing the number of days.
②
Every time after the VACATION function is started or the number of vacation
days is adjusted in the vacation function setting interface, the number of
vacation days will be recalculated accumulatively. Even when the VACATION
function is being performed, operations such as vacation function resetting and
vacation day adjusting will also cause recalculation of the number of vacation
days.
③
After the VACATION function is set, the water heater can still precisely calculate
the number of vacation days accumulatively in the case of short-term power
failure. But ensure that there is no long-term power failure; otherwise, the clock
of the water heater will malfunction and the VACATION function will not work
properly.
6.6.6 CYCLE
The water pipe between the water tank and the water acquisition position is
preheated duly when hot water is available in the water tank. This enables immediate
provision of hot water without requiring exhausting of cold water in the water pipe,
which is different from conventional water heaters. This function requires installation of
the water return system during unit installation. The water returning system consists of
the water return pump, water return pipe, check valve for the water return pipe, and
cycle temperature sensor for the water return pipe.
The CYCLE function enables both automatic and manual control. The later one is
adopted by default. For details on the setting method, see description on manual and
automatic switchover of the water return pump in section 6.7.3.
Manual control:
After the water return system is installed and manual control is
set on the wired controller, press the
FUNCTION
button on the wired controlled before
