GH10NA USER MANUAL
PAGE
14
Issue I
AUGUST 2017
You can change the setting using the following procedure:
STEP 1
STEP 2
STEP 3
STEP 4
→
→
or
→
Green LED lights on
the key.
Display shows the U0
setting value.
Move to the
U1 setting.
Set the desired value.
Save the new
setting.
Move to the U2
setting.
7.3.
HUW/ Return Temperature Setting (U2)
This setting is available to the user
only
if the HUW heating option or return temperature stabilisation are
used, and the user configured the pump with the
F00
service parameter by setting it to the values “01”, “02”,
“03”, “04” (
⇒
section 8.2 page 13). You can modify this setting in a similar way to the described in sections
7.1
and
7.2
. Settings are within the range of 35°C to 65°C.
7.4.
Anti-Legionella Function (U3)
The GH10NA controller is equipment in Anti-Legionella function which limit growth
Legionella
pneumophilia
bacterium on HUW installation. This function is available for users when value
F00
service
parameter was adjust on „02”, „03” or „04”.
The Legionella bacterium growth in water environment and the best condition is on 38–42
0
C temperature.
The Legionella bacterium can cause variety pneumonia disease, called Legion fever.
To activate the ANTI-LEGIONELLA function, set the
U3
setting to 1.
When the function is active, a blinking letter “L” is visible on the left part of the display, before the displayed
temperature value.
You can turn off the function by modifying the
U3
setting to 0, or by pressing
. The anti-legionella
function is also cancelled after a power down.
The ANTI-LEGIONELLA function has higher priority over other functions, therefore it is performed by
the Controller in the first order (superior function).
When the function is activated, the temperature of water in the boiler is increased to 70°C and maintained for
a period of 10 minutes.
TURNING ON OF THE ANTY-LEGIONELLA FUNCTION CAUSES RISE OF
THE TEMPERATURE OF HUW WATER UP TO 70
0
C.
EXTRA CAUSION WHEN USING HUW.
MAY RESULT IN BURNING !!!
