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hot water is needed by the user. The CYCLE icon blinks. Press
▲
or
▼
,the CYCLE
icon keeps on and then blinks if the manual return function is started.The unit preheats
the water pipe with hot water in the water tank. This method requires manual operation
but minimizes energy consumption.
Automatic control:
Within the scheduled duration for automatic water return, the
unit preheats the water pipe based on the pipe temperature. This method does not
require manual operation but consumes more energy.
Steps of setting scheduled time for automatic water return are as follows:
(The automatic control mode needs to be set. For details on the setting method, see
description on manual and automatic switchover of the water return pump in section
6.7.3.)
Step 1: Press the
FUNCTION
mode to select the CYCLE function. The CYCLE
icon blinks.
Step 2: Press the
TIMER
button to enter the scheduled time setting interface for
water return. The TIMER character, time value, and ON character are displayed at the
time position, which together indicate the scheduled start-up time. When the hour value
for scheduled start-up blinks, it can be set by pressing
▲ or ▼.
Step 3: After the hour value is set, press the
TIMER
button to switch to the minute
value for scheduled start-up. When the minute value blinks, it can be set by pressing
▲
or ▼
.
Step 4: After the minute value is set, press the
TIMER
button. The ON character
disappears and the OFF character is displayed. Meanwhile, the hour value blinks,
indicating that the scheduled shutdown time can be set by pressing ▲ or ▼.
Step 5: After the hour value is set, press the
TIMER
button to switch to the minute
value for scheduled shutdown. When the minute value blinks, it can be set by pressing
▲ or ▼
.
Step 6: Press the
TIMER
button to switch back to the CYCLE function selection
interface. If the CYCLE character blinks, the scheduled time for water return is
successfully set to a new value.
Step 7: When users press any button except the TIMER, FUNCTION, ON/OFF,
and ▲/▼ buttons shortly or stay in the selection interface for 5 seconds, the current
interface exits automatically and whether the CYCLE character is displayed is
determined based on the scheduled time for water return.
