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UAB AMALVA we reserve the right to make changes without prior notice.
2.8. Configuration Of Automation Functions
Switches (2.8. Picture) on the automatic box can be used for the selection of heat exchang
er type, heater and th
e
“OVR” function mode. Settings take effect only after rebooting the power supply.
Switch No.
ON
OFF
1
Rotary heat exchanger
Plate heat exchanger
2
Water heater
Electric heater
3
Setting potentiometers (2.3 pic., 2.4 pic.) are active
Setting potentiometers are blocked*
4
“OVR” mode when the exhaust air fan is off
Usual “OVR” mode
Automation configuration switches
2.8 Picture
2.9. Troubleshooting
If the unit is inoperative:
• Make sure the feeding cable is plugged into an electrical outlet.
• Check all safety fuses of the automatic control block. In case of need, replace the faulty fuses with the new ones
of the same electric parameters (fuses parameters are in wiring diagram).
If air flow is reduced:
• Check set ventilation intensity level (see chapter 2.3.).
• Check air filters‘condition. If needed, replace with the new ones.
• Check supply/exhaust air diffusers adjustment.
• Check for clogging outside air intake grille.
• Check if system ducting is not damaged and there are no extraneous things inside.
If supplied air is too cold:
• Check temperature setting (see chapter 2.4.).
• Check if „Winter“ mode is set on the panel.
• Check if there is no failure indication on the control panel (see table 2.9.).
• Check fuse F2 located on the automatic box.
When unit is operating, control panel light diodes can flash or not, but if at
least one light diode blinks, it means that failure is indicated. Please refer
to 2.9 table.
Before starting any operations inside the unit, make sure that the unit is
switched off and the power supply voltage is shut off.
* - When potentiometers are blocked, all the additional settings of the AHU (temperature, ventilation intensity) can
be performed only with connected C4 PLUS panel.
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