Kaisai KHY-12PY3, User Manual

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When the heat pump enters MODE1 for a period time(This time is controlled by a parameter[SG02],
the default is 120min, the maximum is 120min.), the unit forced to exit the MODE1, enter the Normal
mode and works in the setting mode(heating, hot water, etc.) until the unit turns off automatically.
When the heat pump enters the sleep mode, the anti-freeze protection is still effective in order to
prevent the pipes and units getting frozen due to the low ambient temperature. That is, during the
unit in sleep mode, when the ambient temperature and temperature of pipes are detected to be
lower than the winter freeze protection condition, the heat pump will turn on and run with high en-
ergy efficiency frequency to produce heat, after the temperature of the water in the pipes is heated
to a temperature that ensures safety and does not freeze, the heat pump exits the winter freeze
protection and continues to keep the sleep mode, until the [SG02] is met or MODE 1 is exited.
Conditions for exiting MODE1:
Manual off/on in MODE1:
Manual turn off in MODE1 mode, the heat pump will exit MODE1 and enter the OFF state.
If manual turn on the unit again, then re-judge whether it is in MODE1, if it is judged to need to
enter the MODE1, then directly into the MODE1, rather than turn on the unit
2. MODE 2: Solar Low Mode
Only works when the heat pump is on. The heat pump enters the solar low mode, the main screen
of the display shows the solar low mode.
1. The operating target temperature = The setting target temperature;
2. Don’t allow to turn on electric heater in solar low mode;
3. The operating power of the heat pump is the parameter [SG03].
3. MODE 3: Solar Medium Mode
Only works when the heat pump is on. The heat pump enters the solar medium mode, the main
screen of the display shows the solar medium mode.
1. The operating target temperature = The setting target temperature;
2. Don’t allow to turn on electric heater in this mode;
3. The operating power of the heat pump is the parameter [SG04].