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Sub menu 3 – Time
After entering this menu, the value of the hour will
start blinking. Using the

and

buttons, this

value can be changed. When this is set correctly, it
can be confirmed by pressing the

button.

Now  the  minutes  value  will  start  blinking,  which
can  be  set  in  the  same  way  as  the  hour  value.
When  this  is  set  correctly,  it  is  confirmed  by
pressing

. Now it will return to the time sub

menu, and the specified time can be checked.

Sub menu 4 – Date
After selection of the sub menu with the

button, this sub menu can be changed by pressing
the

button. The day number will now start

blinking. Using the

and

buttons, the value

can be adjusted until the correct value is obtained.
The

button will confirm your setting. Now

the month number will start blinking. This can be
set in the same way as the day number. When the
month number is confirmed by pressing

, the

year number will start blinking. This can be set in
the same way as the day- and year number. When
this is confirmed by pressing

, it will return to

the date sub menu, and the specified date can be
checked.

Sub menu 5 – Pump test
In  this  sub  menu,  the  pump  can  be  tested.  The
usefulness  will  be  explained  later  in  this  section.
This  menu  can  be  selected  by  pressing  the

button from the main menu. The display will show:
'Pump test?'. When

is pressed, the pump will

be  activated  for  30  seconds,  independent  of  the
measured  temperatures.  After  30  seconds,  the
display  will  show  'Pump  test  end',  which  can  be
confirmed by pressing the

button again, and

it will return to the sub menu pump test.

Sub menu 6 – Code menu
This  menu  is  to  be  used  solely  by  the  installer.
Entering  the  correct  code  will  grant  access  to  the
sensitive system settings. Read section 4.2.1 if you
are  interested  in  what  your  installer  can  set  for
you.  Make  sure  your  installer  is  aware  of  the
settings  of  the  ventilation  equipment.  The
ventilation  settings  will  influence  the  settings  of
the Aquacom.

3.2 Tips for using the Aquacom

From  the  moment  the  Aquacom  is  attached  to
your  ventilation  system,  there  are  several
situations  which  should  be  taken  into  account
while using the unit.
-

The ventilation equipment will determine the
amount of air which will be drawn (through

the  Aquacom  unit).  When  this  amount  is
higher,  more  ground  energy  will  be
transferred to the ventilation air. The achieved
temperature  rise  or  drop  however  will  be
lower.

When  the  Aquacom  is  turned  off,  the  heat
exchanger can freeze during outside air winter
conditions  and  a  high  ventilation  flow.  Never
unplug  the  unit  from  the  wall  socket,
otherwise  the  frost  protection  will  not  work.
Also make sure enough anti-freeze is added to
the water.

For  extreme  winter  temperatures  (<  -15°C)
and  a  high  ventilation  flow,  the  heat
exchanger  can  freeze.  When  extreme  low
temperatures  occur,  never  use  the  highest
ventilation mode.

When the heat recovery unit is engaged in the
'summer exitair only' mode, no air is drawn
and the Aquacom will not have any effect.

When the ground temperature will not have
any useful effect, the Aquacom will disable
itself. It will also enable itself by itself.

Do  not  adjust  the  (potential)  bypass
temperature  of  the  heat  recovery  unit.  This
temperature  ensures  no  condensation  will
appear in the system.

The Aquacom unit will every two weeks at
least turn on for two minutes when the plug
in the wall socket. This will prevent the pump
from forming rust and getting stuck.

3.3 Maintenance by the user

Major maintenance of the Aquacom should
always be performed by a qualified installer.
Do not try to perform this as an end user.

When performing the requirements below, make
sure the plug is removed from the wall socket.

We recommend to commit every two years the
following the major maintenance on your
ventilation unit:
-

Check the fins of the heat exchanger for
damage

Clean the heat exchanger

Clean the drain

Check the pump operation

Check (and if necessary repair) the electrical
wiring.

Check the system pressure

Check the glycol content

In addition, we recommend cleaning the duct
system every six years.

Aquacom maintenance for the end user limits itself
to cleaning and replacing the filter. Also the