Kampmann Lufterhitzer TOP Series, Инструкция по установке и эксплуатации, Страница: 29 / 40

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TOP unit heaters 1.53
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
10.2 Commissioning
Proceed as follows after conducting the above checks:
Open the valves on the heating system.
Properly fill the pipes and heat exchanger, if they have been
drained after installation.
Ensure that the entire system is vented.
Then check that all pipes and valves are leak-tight.
Start up the TOP by applying voltage to all electrical
components.
Are the master switches on all TOP switched on?
Check the direction of rotation and all speed levels or the
speed range (0-100 %).
10.3 Post-commissioning checks
Perform the following checks after commissioning the TOP unit
heaters:
Are the fans switched off permanently by the thermal contact
(the exception are stage switches type 30773 and 30774)?
To do so, disconnect a wire from terminal TK on the stage
switch (Danger: 230 V!). All the fans should switch off
immediately. The operating readiness indicator should go out
on the stage switch. Reconnect the wire to terminal TK. The
fans should not start up again. Reset the stage switch and
switch it on again. The fans should restart. Briefly disconnect
the connecting wires of all thermal contacts individually to
check that all thermal contacts are correctly wired.
Are the fans in all TOP unit heaters running in the correct
direction at all switching stages?
The direction of rotation is indicated by the arrow. Make sure
that the fan is drawing in air. Swap 2 phases on the stage
switch if all fans are rotating in the wrong direction at all fan
stages. Swap the auxiliary phase connections (Z1, Z2) if the ASC
single-phase motors are rotating in the wrong direction. Check
the wiring of the incorrectly rotating fans if individual fans are
rotating in the wrong direction.
Are all the impellers running smoothly or are grinding noises
audible?
Determine the cause as soon as grinding noises become
audible. Possible causes are:
a unit installed in too confined a space
dirt on site (e.g. pieces of paper) between the impeller and
heat exchanger.