AH-New
condensing air handling unit
APEN GROUP SPA reserves the right to make changes deemed to be required to its products or documentation
24
code HG0310.05GB ed.A-2010
AH
25
code HG0310.05GB ed.A-2010
AH
To reset the FAULT in case of FILTER ALARM, directly press
on the FILTERS icon displayed in the “HOME” page.
10:15
Mon 01 Jan
HOME
°C
20.7
SET: OFF
!
DIRTY
250
10:15
Mon 01 Jan
Do you want to RESET the AIR FILTER alarm?
WARNING !
OK
Filter Control operates with the following Setpoints (that can be
displayed in the “Setpoint” menu):
Setpoint
Default Description
PREX_MAX
200 Pa
LIMIT pressure value for EARLY
WARNING activation
PREX_MAX2 250 Pa
LIMIT pressure value for FILTER
ALARM FAULT activation
These setpoints may be modified in the "Setpoint” menu. Please
refer to section 4.2 "Smart Web".
The “HOME” page will display an icon showing the average
pressure value read by the AH unit and the relevant current
status of filters:
70
CLEAN
Status of
filters
Average pressure,
inside the
ventilating section
ATTENTION: In case of AH air handling unit consisting
of two or more modules, the pressure value indicated
inside the icon corresponds to the average value of the
ventilating section.
4.4.
Filter control (OPTIONAL)
AH air handling units, if purchased with a side or lower optional
intake filter kit, are equipped with a pressure sensor to constantly
control the status of installed filters.
Depending on the configured Setpoints and on the pressure
difference detected upstream or downstream of filters, the Smart
Web will issue two different levels of alarms through an icon
inside the HOME page, as indicated below:
10:15
Mon 01 Jan
HOME
°C
20.7
SET: OFF
CLEAN
CLEAN
70
NO ALARM - CLEAN (GREY)
The “CLEAN” symbol (grey) indicates that filters are clean and
no maintenance operation is required. The system is working
correctly and no Alarm has been triggered.
--------------------------------------------------------------------------
DIRTY
230
EARLY WARNING - DIRTY (YELLOW)
The “DIRTY” symbol (yellow) indicates that filters are starting to
get dirty. Clean or replace filters as soon as possible to prevent
the system from stopping.
--------------------------------------------------------------------------
DIRTY
250
FILTER ALARM - DIRTY (RED)
The “DIRTY” symbol (red) indicates that there is a FILTER
ALARM in progress. IT
is necessary to clean or replace filters
as soon as possible, since they are excessively clogged. In
case of FILTER ALARM, the system will set to OFF until initial
conditions are restored.
