Sony RNPK-4 Help Manual page 29

Settings example:
WARM Duration: [30sec]
WARM Temperature Level: [Level 1]
COOL Duration: [1min]
COOL Temperature Level: [Level 2]
Interval: [2min]
Until auto power off (Continuous Running Duration): [25min]
When the above settings are made, the unit repeats the following series of actions for 25 minutes.
Running in WARM (Level 1) for 30 seconds → Interval for 2 minutes → Running in COOL (Level 2) for 1 minute →
Interval for 2 minutes → ...
Tap [Start].
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