Cleaning (Available To Circular Models Only); Manual/Automatic Switchover For The Water Return Pump; Temperature Unit Setting (℃/℉) - Gree XK64 Manuel De L'utilisateur

Controller For The Air Source Heat Pump Water Heater

6.7.2 Cleaning (available to circular models only)

In the Off state of a normal unit, press and hold MODE+▼ for 5 seconds. The unit
starts the cleaning function and HOTWATER, SAVE, PRESET, and NIGHT icons are
displayed on the LCD. To cancel the cleaning function, press and hold MODE+▼ for 5
seconds again.
The cleaning process lasts for 30 minutes at the most and it will stop automatically
30 minutes after the cleaning function is started. When the cleaning function is started,
the ON and OFF buttons become unavailable.
If the unit is faulty, the cleaning function is canceled automatically.
This function is used for cleaning circular air source water heaters and for
exhausting air in the water system during debugging.

6.7.3 Manual/Automatic switchover for the water return pump

In the Off state of the wired controller, press and hold MODE+▲ on the main
interface for 5 seconds to enter the query interface. Then the query code 00 is
displayed, press and hold MODE+▲ for 5 seconds to display the configurable
parameter codes and values. Press ▲ or ▼ to select P0 and press the MODE button.
Then item value 00 blinks under the parameter code P0. Press ▲ or ▼ to select the
item value and press the MODE button to confirm setting (00 indicates manual control
and 01 indicates automatic control). After that, press the FUNCTION button to return to
the main interface. If no operation is performed with 15 seconds, it will switch back to
the main interface automatically.
Note: Other parameters cannot be modified; otherwise, operation exception will be
caused.
6.7.4 Temperature unit setting (℃/℉)
In the Off state of the wired controller, press and hold MODE+▲ on the main
interface for 5 seconds to enter the query interface. Then the query code 00 is
displayed, press and hold MODE+▲ for 5 seconds to display the configurable
parameter codes and values. Press ▲ or ▼ to select P5 and press the MODE button.
Then item value 00 or 01 blinks under the parameter code P5. Press ▲ or ▼ to select
the item value and press the MODE button to confirm setting (00: ℃ and 01: ℉). After
that, press the FUNCTION button to return to the main interface. If no operation is
performed with 15 seconds, it will switch back to the main interface automatically.
Note: Other parameters cannot be modified; otherwise, operation exception will be
18