IMO DVV

Maintenance/troubleshooting
DVV 16.08.2021 15
VDMA
24186-1
Description
Maintenance interval
Monthly
Every
3 months
Once
a year
Fan and electric motor of the fan
1.1.11
Check the drainage for function
×
6.1.1
Check to dirt, damage, corrosion and fastening
×
6.1.2
Functional cleaning
×
10.1.6
Check the terminals for tightness
×
10.1.9
Test the fan for function und operational readiness
(test run app. 15 min.)
×
6.1.4
Check the bearings for noise
×
10.1.3
Check impeller for direction of rotation (all speed)
×
6.1.3
Check impeller if damaged or unbalanced (if neces-
sary provide vibration measurement)
×
10.1
Functional test of automatically bridging of all ther-
mal and overcurrent protective devices
×
10.1.7
Measure the current
×
10.1.12
Test function of protective device
×
Triggering device
Check it for function
×
Test of functions
Test all functions of system from control panel as
well as signal lights
×
Test of hatch opening/closing
Check the joints of actuator and hatch cover are
properly fastened
×
Check if smoothly opens/closes
×
Check the safety measures (protective elements,
signs, guards)
×
Accessories (air ducts, air louvers, flaps, sound at-
tenuators)
5.5.1
Check accessible ducts inclusive fire protective insu-
lation and fastening for outside damages and corro-
sion (visually)
×
5.5.4
Check accessible flexible connections for tightness
(visually)
×
5.2.1
5.2.3
Flaps and sound attenuators check for dirt, damage
and corrosion
Check mechanical functionality of the flaps
×
5.1.1
Check air louvres for dirt and damage (visually)
×
10.4 Spare parts
In case of order of spare parts please specify the serial number of the fan. You can find it on the nameplate or in the
test protocol.
Spare parts: electric motor (there is a restriction to use only from the test lab allowed motors), impeller, service
switch, casing.
How to replace electric motor, impeller or actuator - please contact manufacturer for instructions.