Hukseflux VU01, User Manual, Page: 19 / 25

VU01 manual v1614 19/25
6 Maintenance and trouble shooting
6.1 Recommended maintenance
For maintenance and trouble shooting of pyranometers or pyrgeometers consult the
SR20, SR20-D2, SR22, SR25, SR25-D1 or IR20 manual.
When conducting maintenance on VU01, always power off the ventilation unit.
Powering off VU01 may be done by disconnecting the VU01 connector.
Table 6.1.1 Recommended maintenance of VU01
6.2 Life expectancy
The life expectancy of the fan itself is more than 45.000 hours under normal operating
conditions.
6.3 Trouble shooting
Table 6.3.1 Trouble shooting for VU01
PROBLEM SOLUTION
Fan and / or heaters do not function check wiring for correct connection of [+] and [-]
check power supply
Fan does not work
check for obstructions of fan
Fan provides little airflow check for obstructions of airflow
replace dust filter if clogged
check wiring connections
MINIMUM RECOMMENDED VENTILATION UNIT MAINTENANCE
INTERVAL SUBJECT ACTION
1 1 week check check the operational status of the ventilator and heaters by
checking the optional fan status signal or by on-site inspection
2 1 week cleaning clean ventilator cover and ensure air inlet is free of
obstructions such as leaves or snow buildup
3 6 months
filter replace dust filter, as described in the appendix