Legionella Protection; Reset To Factory Settings (Reset); Settings For Optional Circulation Pump - Daikin EHSX04P30A Operating Instructions Manual

3.6.6 Legionella protection

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 Al-
therma 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"
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.
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1420944 – 05/2014

3.6.7 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. 3-8.
1. Press the exit button for at least 5 secs.

2. Select the programme "Timeprog Reset" with the rotary
switch.
3. Execute the programme by briefly pressing on the rotary
switch.

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.
Possibility 3
If fundamental changes to the Daikin Altherma EHS(X/H)
in level "DHW
equipment for the function within the RoCon system are nec-
essary, the Basic Configuration can be reset using Technician
access rights to the Factory settings or can be redefined.

3.6.8 Settings for optional circulation pump

To increase convenience when drawing off hot water we can
switch an optional circulation pump using the Controller RoCon
HP.
There are 2 switching possibilities:
a) Separate timer programme (see section 3.4.7). The
circulation pump operates according to its own timer
programme.
b) Together with a hot water timer programme. The circulation
pump is actuated in parallel with the operating periods of the
hot water timer programme.
Independent of the set timer programme, the energy con-
sumption of the circulation pump van be minimised by operating
it on a cyclic basis. The parameter [Circl-Pump Interval] is used
to set how long the circulation pump is operated within a
15 minute interval.
Menu "Special Level" is displayed.
The respective values are reset to the factory setting.
After a reset to the factory settings via option 2 or 3, the
system must be configured again by the heating tech-
nician to the installation environment and all the cus-
tomer-specific parameters reset.
3 x Operation
Operating instructions
27