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Topvex TX03-06
Operation and Maintenance instructions
205875
Systemair AB
14
Troubleshooting
Should problems occur, please check or correct the following before contacting your service representative.
Always check if there are any alarms active in the control panel.
1. Fan(s) do not start
Check that the fuses are not defect
Check the settings in the control panel (times, week schedule, auto/manual operation etc.)
Check if there are any alarm messages
2. Reduced airflow
Check the settings of Medium and Low fan speed
Check that the Outdoor/Exhaust air damper (if used) opens
Change of filters required?
Cleaning of diffusers/louvers required?
Cleaning of fans/exchanger block required?
Is the roof unit/air intake clogged?
Check ducts for visible damage and/or build up of dust/pollution
Check diffuser/louver openings.
3. Cold supply air
Check the control temperature on the control panel
Check if the overheating thermostat has tripped. If necessary press the red button, marked RESET,
on top of the electric heater connection box, see fig. 7 on page 13 in the
installation description
.
Check if the extract filter must be changed
Check if the fans have stopped due to overheating. If so the thermal contact might have tripped
(shows as “
Fan alarm
” in the control panel). If necessary reset (see page 6
Alarms-overview
)
4. Noise/vibrations
Clean the fan impellers
Pull the two fans out and check that the 2 screws holding the fans are tightened.
Service
Before calling your service representative, make a note of the specification and production number from the
type label
(fig. 5).
Fig. 5
Code explanation
1: Item number
2: Production order number
3: Consecutive number
4: Production date
5: Product code (product specification)
2
1
3
4
5
