Kampmann Ultra 73 Series, Инструкция по сборке, установке и эксплуатации, Страница: 60 / 72

Ultra
Assembly, installation and operating instructions
60
LED code Relay in the fan* Cause
14x 0 Fault, peak current
17x 0 Temperature alarm
20x 0 MODBUS communication fault
Tab. 10: Status via flash code
* Relay in the fan with factory-programmed function (fault message not inverted)
0 relay de-energised
1 relay energised
11.1 Fault table
Fault Possible cause Remedy
No function. No power supply.
Check voltage, switch on repair switch.
Replace fuse.
Fan is not running.
Unit is switched off. Switch on the unit via the controller.
No power supply. Check power supply and connect.
Electrical cable not connected or incorrectly con-
nected. Check electrical connection and correct if neces-
sary.
No request from controller, hence fans switch
off.
Change controller settings, if required.
Fan blocked. Clean dirt from fan.
Impermissible operating pressure (e.g. excessive
back pressure)
Correct operating point. Allow unit to cool
down. Switch off the mains power for min. 25 s
and switch on again to reset the error message.
Alternatively, reset error message by applying a
control signal of <0.5 V to DIN1 or by short cir-
cuiting DIN1 to GND.
Temperature monitor has tripped.
Allow the motor to cool down, find and rectify
the cause of the fault and release restart lock if
necessary.
Motor winding interrupted. Replace unit.
Water outlet
Fault on the heat exchanger. Replace the heat exchanger if you need to.
Hydraulic connection not properly done. Check flow and return and tighten, if necessary.
Water outlet
Condensate drain outlets blocked.
Clean condensate outlets and check for ad-
equate gradient.
Chilled water line incorrectly insulated. Check insulation.
Condensate drain not properly installed.
Check correct operation of condensate pump.
Check and clean condensate outlet.
Accessory components carrying air not properly
insulated.
Check insulation.
Unit not heating or cooling sufficiently (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.