nvent Raychem HWAT-ECO V4, Manual

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3.3.2 Timer program and legionella prevention
When Lock is ON a password is needed to access the following menus.
When lock is OFF the following menus are directly accessable (The
display shows a * in the lower right corner).
1. Default program
2. Edit program (incl. legionella prevention)
Timer programming is done graphically in 1/2 hour time blocks.
A block can be set to Off, Economy temp, Maintain temp, or 100% power
(100% only if HWAT-R cable is used).
Selection of temperature by up/down Arrow keys:
= Off = Maintain temperature
= Economy temperature = 100% power
(Legionella prevention
HWAT-R)
Selection of time block by hort./vert. Arrow keys:
Timer programming example from 00:00 to 08:00:
..........
00:00 – 00:30: 100% power
00:30 – 01:00: 100% power
01:00 – 01:30: 100% power
01:30 – 02:00: 100% power
02:00 – 02:30: Off
02:30 – 03:00: Off
03:00 – 03:30: Off
03:30 – 04:00: Off
04:00 – 04:30: Off
04:30 – 05:00: Economy
05:00 – 05:30: Economy
05:30 – 06:00: Economy
06:00 – 06:30: Economy
06:30 – 07:00: Maintain
07:00 – 07:30: Maintain
07:30 – 08:00: Maintain
..........
To calculate the time needed for legionella prevention
(100% power HWAT-R) see appendix 5.3 page 26.