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11.2 Service menu
Using the Service menu, you can:
●
Set the system parameters
●
Carry out a temperature balancing between
the temperature sensors
●
Carry out a pump test
●
View the frost messages
Important notes
●
Only persons who have been trained and
who are well acquainted with the system
may make changes in the Service menu.
●
If an incorrect setting is made, the EW
system may no longer work correctly. In
this case, please contact Customer service,
●
Access to the Service menu is protected by
the PINcode "7854".
●
When making inputs, a
setting is modified
with the
button or the
button
.
Each setting has to be confirmed with
.
●
Settings can also be single digits.
●
If no button is pressed for approx. 2 minu-
tes, the starting display appears. After a
further 2 minutes, the lighting switches off.
●
P6 Volumetric flow
The rated volumetric flow of the connected
room air system (ventilation unit) is set with
"P6 Volumetric flow".
The value set here is used for the
calculation of the total yield and for the
energy balancing.
This setting has no effect on the system
performance (pump flow quantity).
●
P7 Heating element switched off/on
Here, the heating element in a downstream
EHZ electrical heating register can be
switched on or off.
Only switch the heating element on, if a
downstream EHZ electrical heating register
is connected.
The electrical heating register switches on,
if:
●
the heating register is switched on, and
●
the system is in winter operation, and
●
the brine pump has already been running
for 5 minutes, and
●
the T2 temperature of the EW-K 225 has
not risen in this time by at least 1 °C.
●
P15 WRG mode / WP mode
Here, the EW-S-controller is adapted to the
connected ventilation unit (WRG operation
with heat recovery unit or WP operation
with heat pump compact unit).
11.2.1 Basic setting in the Service menu
Carry out the basic setting of the EW system
in the Service menu with the following
program items:
●
P5 Carry out temperature balancing?
●
P6 Volumetric flow
●
P7 Heating element switched off/on
●
P15 WRG / WP mode.
Select Service menu P4 with
or
(
→
Chapter 5).
P4 Service
Press
.
Enter the PINcode. Select the digits 7, 8,
5 and 4 with
and
. Confirm each
with
.
i