Sunrain YC-007TB1, Руководство по установке и эксплуатации, Страница: 22 / 32

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When the water tank (inlet water) temperature ≥ the set temperature, the heating is stopped;
Cooling mode:
When the water tank (inlet water) temperature ≥ set tempe return difference, the cooling starts;
When the water tank (inlet water) temperature ≤ the set temperature, the cooling stops.
3.2 Circulating pump control (water circulation heat pump):
When defrosting, water pump is forced to run.
When cooling or heating, it is turned on 10 seconds before the compressor and stops 30 seconds after
the compressor.
Antifreeze mode:
When the controller is powered on, whether heat pump is off or on, when the ambient temperature is too
low, water pump will enter antifreeze mode to prevent the circulation line or the water tank from freezing.
The specific conditions for enabling and disabling the environment for low temperature antifreeze are as
follows:
1. When the ambient temperature is ≤ 2 ° C, and the duration of the circulating water pump is off for more
than 30 minutes, the circulating water pump is forcibly started for 60 seconds;
2. Exit the antifreeze mode when the ambient temperature rises to ≥4 °C.
3. When the ambient temperature sensor is faulty, it is mandatory to start the circulating water pump
periodically, and run for 60 seconds every 30 minutes.
3.3 Circulation pump control (optional: fluorine cycle heat pump)
3.3.1 Manual water circulation
When the controller is in the normal display state, click the “ ” button to start the manual water
circulation function. At this time, the “Back Pump” icon flashes.
The manual return water control is as follows:
A, no pipe temperature sensor
When the manual return water function is activated, the water pump is started. After 30 seconds, the
buzzer sounds three times, prompting the user to use the hot water; after 30 seconds, the “
” icon
flashes 3 times and the buzzer sounds for 3 seconds. Turn off the water pump and the “ ” icon goes
out (if the timed water is set before, the “Back Pump” and “Timer” icons are displayed).
During this process, press and hold the “cold and hot” button for 1 second to manually cancel the manual
water return function.
B, there is a pipe temperature sensor
When the manual return water function is activated, if the return water pipe temperature is <35°C (default
35°C), and the current water tank temperature ≥ return water set tempe return water temperature
difference, return water pump will starts. If the return water pipe temperature ≥ back water set
tempe return water temperature difference for 5 seconds or temperature control return water time
≥ 2 minutes, the buzzer sounds three times, prompting the user to use hot water; after 30 seconds, the
"
" icon flashes 3 times, buzzing the device will beep for 3 seconds, the water pump will be turned off,
and the “ ” icon will be off (if the timed water is previously set, the “Back Pump” and “Timer” icons will
be displayed).
During this process, press and hold the “cold and hot” button for 1 second to manually cancel the manual
water return function.
3.3.2 Timed return water: