PROBLEM AND REMEDY
PROBLEM
Feeble air discharge
It does not heat
It does not cool
The fan does not turn
Condensation on the unit
cabinet.
For anomalies don't hesitate, contact the aftersales service immediately.
WIRING DIAGRAMS
READING KEY
IG
= Master switch
M
= Terminal strip
MS
= Dip switch
MV
= Fan Motor
PE
= Earthing connection
SA
= Ambient probe
SC
= Control card
SW
= Minimum water temperature probe
VCH = Solenoid valve
OMNIA UL P
Wiring diagrams may change for updating. It is therefore necessary to refer always to the wiring diagram inside the units.
PROBABLE CAUSE
Wrong speed setting on the control panel
Blocked filter
Obstruction of the air flow (inlet and/or outlet)
Poor hot water supply
Wrong setting on control panel
Poor chilled water supply
Wrong setting on control panel
No current
The water has not reached operating temperature.
The limit conditions of temperature and humidity indica-
ted in the Technical booklets (Operating limits) have
been reached.
M
1
2
3
4
Sez. 1,5 mm 2
IG
= Components supplied as optional extras
= Connections to be made in situ
AR =
BI
= White
BL
= Blue
GR
= Greet
GV
= Yellow-Green
MA
= Brown
NE
= Black
RO
= Red
5
6
7
8
9
10
BL NE MA RO
M
1
MV
L
N
230 ~ 50Hz
REMEDY
Select the speed on the control panel
Clean the filter
Remove the obstruction
Control the boiler
See control panel settings
Control the chiller
See control panel settings
Control the power supply
Please check up the boiler or the chiller.
Check up the thermostat settings.
Increase the water temperature beyond
the minimum limits indicated in the
technical booklet.
Orange
PE
PE
15