Kaisai KHY-12PY3, User Manual

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14. Muting
The mute function affects the device’s operation by reducing the heat pump’s power (fan speed)
and providing quieter operation. You can set the activation and deactivation times for the func-
tion, and also adjust the buttons below the set times to enable/disable the function.
15. Curve
The curve function records water temperature at the inlet and outlet. Temperature data is
collected every five minutes, and 12 sets of temperature data are saved every hour. The timing
of measurements is based on the latest recorded data. If there’s a power interruption lasting less
than 1 hour, data for that period won’t be saved.
Only the state curve during device activation is recorded; the state curve during device deac-
tivation is not saved. The value on the x-axis indicates the time from a point on the curve to the
current time point. The leftmost point on the first page (with a value of 0 on the x-axis) represents
the latest temperature record. The temperature curve is stored thanks to a memory function that
operates even when the power is off.