Colasit CMVpro 125, Operating Instructions Manual, Page: 58 / 76

11 | Repair
58 / 76 Operating instructions CMVpro 125-400 | Version 1-en
Fault Possible cause Fault discovery Remedy
Type V: visual inspec-
tion. Clean and replace
condensate drain/
siphon
_ Chap. 4.3.5 [ } 24].
- Retrofit with conden-
sate drain.
Loose/defective vibra-
tion absorbers or fas-
tening elements. Visual inspection Tightly screw/replace
vibration absorbers
_ Chap. 6.4 [ } 32]
and following.
Improper mounting. Installation location re-
quirements
met
_
Chap. 6.2 [
}
30]
.
Fortify foundation
(baseplate). Resize
fastening elements
(anchors).
Overheating of
electric motor. Bearing or winding
damage. Auditory inspection,
current draw measure-
ment, winding mea-
surement. Repair or replace elec-
tric motor
_ Chap. 11.7 [ } 64].
Impeller stiff or
stopped. Visual inspection. Remove deposits or
foreign objects
_
Chap. 10.3.3 [
}
53].
Motor overload due to
improperly positioned
damper valve. Measure flow rate and
pressure at the operat-
ing point. Set damper valve to
proper position.
Motor overload due to
system changes. Fan/electric motor no
longer meeting the op-
erating point. Consult with point of
contact (see title
page).
Prohibited op-
erating condi-
tions. Ductwork not leak
tight. Check for leakage. Seal up.
Loose hose clamps or
damaged sleeves. Re-tighten hose
clamps or replace
sleeves
_
Chap. 6.8 [
}
35].
FC parameter "max.
frequency" set improp-
erly (speed too high,
overheating of electric
motor). Check FC parameters
_ Chap. 7.3.2 [ } 43].
Observe different con-
figuration for PM mo-
tors.
Adjust parameters ac-
cording to characteris-
tic map in technical
data sheet.