Fig. 3-17
Air Purge
procedure
3
x
Operation
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016
Operating instructions
27
5. Place the rotary switch in the
"Operating Mode"
position and set the desired operating mode
(see section 3.4).
More detailed explanations and possible setting values for this function can be seen
in chapter 6.2.1.
3.6.11 Legionella protection
WARNING!
There is a danger of scalding at target
hot water temperatures over 60°C.
This is possible when solar energy is
used and when Legionella protection or
SMART GRID is activated or when the
domestic hot water target temperature is
set higher than 60°C.
●
Fit a scald-protection in the hot water
distributor line (e.g. VTA32 + Screw
connection set 1").
This function serves to prevent bacterial contamination in the hot
water storage tank. For accurate controllers for drinking water hy-
giene, refer to the national provisions.
The Legionella protection function in the Daikin
Altherma EHS(X/H) is deactivated when leaving the
factory as the possibility of bacterial contamination is
very low:
– Low volume of heat exchanger (stainless steel)
used for heating drinking water.
– Frequent complete water replacement "first-in-first-
out".
– No stagnant water areas in drinking water storage.
An active Legionella protection function (parameter [Anti-Le-
gionella day]) involves heating the connected storage tank to a
disinfection temperature 1 x a day or 1 x a week. The legionella
protection function is active for an hour.
The maximum hot water temperature set by the user or
the heating technician is ignored when hot water is
heated for disinfection purposes.
A connected circulation pump is automatically switched
on during thermal disinfection.
Setting the parameters for legionella protection is carried out in
the rotary switch setting
"Configuration"
in level
"DHW
Configuration"
.
Using the factory settings, the storage tank is heated at 03:30
hours if the target hot water temperature is below 65°C at that
time.
More detailed explanations and possible setting values for this function can be seen
in chapter 6.2.4.
3.6.12 Reset to factory settings (Reset)
If the Daikin Altherma EHS(X/H) no longer works properly and
any other cause for the malfunction cannot be detected, it may be
helpful to reset all the controller settings to the factory settings.
There are 3 options for this.
Option 1
User access rights
allow the
switching time program
in the
"Special Level" to be reset to the factory setting according to
tab. 3-9.
1. Depress the exit button for at least 5 secs.
Menu
"Special Level"
is displayed.
2. Select the programme
"Timeprog Reset"
with the rotary
switch.
3. Execute the programme by briefly pressing on the rotary
switch.
The respective values are reset to the factory setting.
4. Select
"Return"
with the rotary switch.
5. Confirm the changes with a brief push of the rotary switch.
Possibility 2
Technician access rights
permit all
customer-specific pa-
rameter settings
in the "Special Level" to be reset to the factory
setting according to tab. 6-1 to tab. 6-11.
1. Enter the expert code (see section 3.6.1).
The
"Setup"
level is displayed after entering.
2. Depress the exit button for at least 5 secs.
Menu
"Special Level"
is displayed.
3. Select the programme
"Reset?"
with the rotary switch.
