Alarms And Troubleshooting; Alarm; Troubleshooting - Swegon CASA R3 Smart Installation, Commissioning And Maintenance Instructions

5. Alarms and Troubleshooting

5.1. Alarms
Any disruptions to the function of the ventilation unit
are indicated by symbols on the upper row of the base
display. If there is an active alarm in the system, the
screen leaves its standby mode and does not enter
standby mode again as long as the alarm is active. The
symbol for an active alarm is
has caused the alarm is shown by the "Alarm" item
on the main menu. A so-called info-alarm remains on
the screen when the active fault condition ceases.
The Info alarm can be reset from "Alarm" on the main
menu.
Status Alarms
T1...T8 sensor fault
Reheater error
Preheater error
Freeze risk water-heated air
heater
Fault supply air fan
Fault extract air fan
Contact fault
External emergency stop/
fire alarm
Internal fault
Service reminder
Filter guard

5.2 Troubleshooting

A ventilation system is a unified whole composed of
several system components all of which influence how
the system operates. A malfunction in ventilation perfor-
mance could be caused by any component of the ventila-
tion system or by the way the system has been installed.
If during the ventilation unit's warranty period (2 years)
after a check (see the enclosed check list) there are func-
tional disruptions in the ventilation unit, you can register
these using the response form at the address www.
casahelp.fi. There are also instructions, service videos and
frequently asked questions on the same website.
If a problem or a fault occurs on the ventilation system
after the warranty period (2 years), contact our network
of authorised service companies on www.swegonhome-
solutions.com, your real estate company's service divi-
sion or another service company that is fully conversant
with ventilation repairs.
18 www.swegonhomesolutions.com
. The condition that
Action
Contact a service company. The ventilation unit runs in a restricted operating
mode.
Check the overheating protection. Contact a service company.
Check the overheating protection. Contact a service company.
Ensure that the circulation pump in the waterborne heating system is running
and that the water supply to the ventilation unit's heating coil is hot enough.
Contact a service company.
Contact a service company.
Restart the ventilation unit. Contact the service company if the error persists.
The alarm clears automatically when the external emergency stop or the fire
alarm ceases. No info alarm remains afterwards.
Restart the ventilation unit. Contact the service company if the error persists.
The ventilation unit runs in a restricted operating mode.
Service the ventilation unit and acknowledge the service reminder.
Replace the filter and reset the filter guard.
!
Important
Freeze protection function
Ice can form in the heat exchanger during
periods of cold weather if the extract air
is humid. A protective function then auto-
matically reduces the speed of the supply
air fan. Under such conditions, variations in
the fan speed are therefore normal.
Under such conditions, small amounts of
ice can form inside the ventilation unit.
Swegon reserves the right to alter specifications.
R3.051016
!