Wagner & Co RATIOfresh 250 Technical Information Installation Instructions page 17

Table 10 Value Level – SETTINGS: TIME
Designation Description
WEEKDAY
Make sure the day of the week and the time are set correctly especially
when using the circulation and disinfection function.
[Monday]
TIME Make sure the day of the week and the time are set correctly especially
[00:00] when using the circulation and disinfection function.
Select this menu item with the < and > keys and press the ■ key to return to the menu level.
END
Table 11 Value Level – SETTINGS: SERVICE
Designation Description
This menu serves to change control parameters with special
CODE NUMBER
applications and requires input of a code to prevent accidentally
800174
changing these parameters. The code is available upon request. Use
MON-005
the < and > keys to set the correct code.
RS232-INTERVAL
Setting the output interval of the serial interface.
[003] s
Compensation factor to affect the sensitivity of the hot water control in
dependency of the buffer cylinder temperature. If the compensation
PRIMARY FACTOR
factor is set to 0, compensation is not active and that also applies to
[20]
when neither primary flow sensor nor buffer cylinder sensor are
connected.
Kp CIRCULATION
Boost factor of pump in relation to the determined temperature
difference hot water-circulation return
[05] K
IMPULSE/LITRE
Impulse value of the volume flow sensor
[35 ]
Kp VOL
Boost factor of pump in relation to drawn water volume.
[05] K
RATIOfresh type
Controlling variation - this selection resets all values to factory setting.
[250-400]
Start values for calculation of pump power. For all 10 tapping slots start
values are set. They are the base of calculating the required pump
force. The actual temperatures and tapping volumes are incorporated
in the calculation. The individual values can be examined and changed
ADAPTATION
by selecting the respective sub-menus. If not all slots are reached
VALUES
during controlled tapping while commissioning the system (chap. 5.6),
the adaptation values can be set directly. The power of the pump
continuously increases over the ten tapping slots. Each slot must have a
higher value than the previous one.
Adaption value of the first tapping slot. On the left the current hot water
temperature is shown. In the centre you can see the tapping slot
currently in use. On the right, the momentary adaptation value can be
seen. In order to make an adjustment, the adaptation value (display:
ADAPT. VALUE 1
top) related to the current tapping slot (display: centre) should be
60 °C 01 [08]
selected. Increasing this value will also increase the initial pump power
of the slot. Setting the value to high results in risk of scalding, since the
controller only starts with the adaptation after 10 s and then reduces the
pump power until the set water temperature is reached.
ADAPT. VALUE 2
Adaptation value of the second tapping slot
60 °C 02 [15]
ADAPT. VALUE 10
Adaptation value of the tenth tapping slot
60 °C 10 [71]
PUMP INTERVAL
[200] ms
Select this menu item with the < and > keys and press the ■ key to return to the menu level.
END
EN-RATIOfresh-250-400_TI-MA-0809-11214900
Range Base value Your value
Monday to
-
Sunday
00:00 –
-
24:00
Range Base value Your value
0 – 255
1 – 255 s 3 s
0 – 240 20
1 – 10 K 5 K
0 – 100 35
1 - 50 K 5 K
250/400/
250/400
800
5 – 90 8
5 – 90 15
5 – 90 71
200 – 600
200 ms
ms
17