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18.4
PASTEURISATION FUNCTION (USING NIGHT SET BACK FACILITY)
THE PROCEDURE FOR A WEEKLY HIGH TEMPERATURE (70
Access the installer menu (Down & Enter for 5 seconds).
Set parameter p02 to 15°C (this is a deduction from the pasteurisation temperature and can be reduced to 10°C if a 65°C storage
temperature is required instead of 60°C).
Set parameter p03 to 75°C (this is the maximum setpoint).
Exit the installer menu.
Access the user menu (Enter for 5 seconds)
Set parameter u02 to 75°C (this is the pasteurisation temperature)
Check that parameters u03 to u07 give the correct date and time.
Exit the user menu.
Access the setback function menu (Up & Down for 5 seconds).
Set the trigger values as follows:
Trigger
Day
Time
On 1
1
00:00
Off 1
1
23:59
On 2
2
00:00
Off 2
2
23:59
On 3
3
00:00
Off 3
3
23:59
On 4
4
00:00
Off 4
4
23:59
On 5
5
00:00
Off 5
5
23:59
On 6
6
00:00
Off 6
6
23:59
On 7
7
02:00
Off 7
7
23:59
Exit the setback function menu (Enter for 5 seconds)
This will cause the water heater to operate at the reduced temperature between 00:00 and 23:59 each day with the exception of Sunday morning
when the reduced temperature will not become active until 02:00 i.e. from 23:59 on Saturday night until 02:00 on Sunday the set point will be
75°C
O
C) PASTEURISATION IS AS FOLLOWS:
63
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