EN
i-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF
57
HUMIDIFIER
ELECTRIC HEATERS
ELECTRIC HEATERS
The overall power of the electric heaters is divided into a number
of elements, each with a power of 2÷3÷4 kW.
The colour of the wires on each element has the following mean-
ing:
• BLACK wire = low power element (0,7÷1÷1,3 kW);
• WHITE wire = high power element (1,3÷2÷2,7 kW);
• RED wire = common.
The wires for each element are connected to contactors KM5
and KM6 on the electrical panel so as to balance the load
between the phases and create three stages of power (see the
wiring diagrams on the unit).
If having to replace the electric heaters, disconnect power to the
air-conditioner and wait until the heating elements have cooled
down. After having replaced the heaters, make sure the earth is
connected.
SYSTEM COMPONENTS
Upon request, the air-conditioning unit can be fitted with an immersed electrode humidifier (versions D and H).
1
Humidifier interface board: A3; (inside the electrical panel).
2
Current transformer TA1 (inside the electrical panel) for
measuring the current input of the steam cylinder.
3
Water fill tank.
4
High water level electrodes in the steam cylinder.
5
Overflow pipe (BEHIND THE CYLINDER).
6
Boiler cylinder (or steam cylinder).
7
Water fill solenoid valve: YV1.
8
Cylinder drain solenoid valve:YV2.
9
Microprocessor control board:A1.
10 Temperature and humidity probe: BH1.
3
4
6
7
8
9. B1
2. TA1
4
6.
8. YV2
7. YV1
5
3
1. A3
10. BH1
KM4
