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3062049_201610
KG TopCommissioning
Filter monitor
Froststat
- Measuretheairowrate.Checkpressuredrop.Theairowrateinaunitwithfree
running fan impeller can be measured at the pressure testing connector provided as
standard.
- Measure the current drawn by the fan motor:
Ensurethatmotorcurrentandmotorratingarenotinexcessoftheguresstated
onthemotortypeplate.Neverpermitthefanspeedtoexceedthemaximum
stated,otherwisetheoverloadwilldestroymotorandfananddetachedorying
fragmentscoulddamageothercomponents.
Note
In the case of air-handling units with variable speed motors and/or variable recirculated
air volume, it is important to measure the highest current consumption across the entire
variable speed range.
Note
Damper(accessory)
Check that the dampers and linkage move freely.
Check that the direction of rotation of the drive motor(s) of the damper(s) is correct; if
required reverse the direction-of-rotation switch on the servomotor.
If necessary louver dampers must be insulated by the customer to prevent noise emis-
sions and the formation of condensation water or heat losses.
Iftheunitisttedwithdampers,complywiththeseparateinstallationinstructionsfor
the damper positioning motor supplied.
Damper drive shaft:
15 x 15 mm
Fully open the dampers prior to starting the fan if they are arranged on the
pressureside.
Starting the fan against closed dampers can result in damage to the appliance.
OK
1
2
Frequent starting and stopping is to be avoided.
In case of operation with a frequency converter, it must be checked that the ‘over
modulation’ function on the frequency converter does not lead to an impermissible
increase in the resonance vibration within the operating range (speed range).
The over modulation must be switched off!
Check the tightening torque of the screwed connections after an operating period of
approx. 1 hr.