Page 46
Operation and Maintenance
Envistar Flex
DSEF191101.05.EN
Continuous product development may give rise to specification changes without notice.
5. The fan impeller and motor are mounted on a support fitted with rubber anti-
vibration mountings. Check that the anti-vibration mountings are securely
mounted and are intact.
6. Check the mounting screws as well as the suspension devices and support.
7. Check that the gaskets on the connection plates around the connection
openings are intact and firmly fitted.
8. Check that the measurement tubes are securely fitted on each measurement
outlet.
9. Remount the fan units.
10. Check the air flows by:
– reading the flow display on the Climatix display unit for units with control
equipment (code MX).
– measuring
Δ
p in the connections (measurement outlets) for flow measurement
+/– for units without control equipment (code UC, MK, US).
Use the unit’s air flow label and see which flow corresponds to the measured
Δ
p.
Q= × P
Luftflöde / Ilmamäärä / Airflow
Przepływ powietrza
Q (m
³/
S
)
P (Pa)
Art.Nr: 19121-1201
EC250R63D
0.15
0.20
51.43
1
0.25
0.30
0.35
0.40 0.45
0.50 0.55
0.60
50
100
200
150
250 300
800
500 600 700
400
900
Example of flow sign