Venkon XL
Assembly, installation and operating instructions
57
10
Faults
The following chapter describes possible causes of faults and the work needed to rectify them. Should faults occur frequently,
shorten the maintenance intervals in line with the actual loading on the unit.
Contact the manufacturer with any faults that cannot be rectified using the following information.
Behaviour in the event of faults
The following applies:
1. Immediately switch off the unit with faults that pose an immediate danger to persons or property!
2. Determine the cause of the fault!
3. Switch off the unit and prevent it from being reconnected if rectifying the fault requires work in the hazard area. Immedi-
ately advise a supervisor on site about the fault.
4. Either rectify the fault yourself or have it repaired by authorised personnel, depending on the nature of the fault.
The
provides information on who is authorised to rectify and remedy faults.
10.1 Fault table
Fault
Possible cause
Remedy
System water leakage
Heat exchanger defect.
Replace heat exchanger if necessary.
Hydraulic connection not correct.
Check flow and return, retighten if necessary.
Water leakage condensate
Drains of the condensate tray clogged.
Clean condensate drains and check for sufficient
slope.
Cold water pipe not properly insulated.
Check insulation.
Condensate drain not properly installed.
Check the function of the condensate pump.
Check condensate drain, clean if necessary.
Air-conducting accessory components not properly insulated.
Check insulation.
Water leakage condensate
In humid cooling mode, no manufacturer-compliant M5 /
MERV 8 or F7 / MERV 13 filter is used.
Use manufacturer-compliant filter.
Unit not heating or cooling suffi-
ciently (LPHW/CHW)
Fan is not switched on.
Switch on fan at controller.
Air volume is too low.
Set a higher speed.
Filter is dirty.
Replace filter.
No heating or cooling medium.
Switch on heating and/or cooling system, switch
on circulation pump, vent unit/system.
Valves not operating.
Replace faulty valves.
Water volume too low.
Check pump output, check hydraulics.
Setpoint temperature on the controller set too low/high.
Adjust temperature setting on the controller.
Operating unit with integral sensor and/or external sensor is
exposed to direct sunlight or positioned over a heat source.
Place operating unit with integral sensor and/or
external sensor in a suitable position.
Air cannot blow out or in freely.
Remove obstacles at the air outlet/air inlet.
Heat exchanger dirty.
Clean heat exchanger.
Air in the heat exchanger.
Vent heat exchanger.
Unit too loud
Speed too high.
Set a lower speed, if possible.
Air inlet/outlet opening is obstructed.
Free air ducts.
Filter dirty.
Replace filter.
Rotating parts unbalanced
Clean and/or replace impeller. Please make sure
that no balancing clips are removed during
cleaning.
Fan dirty.
Clean dirt from fan.
Heat exchanger dirty.
Clean dirt from Heat exchanger.
Содержание Venkon XL
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