UAB AMALVA we reserve the right to make changes without prior notice
32
EN
V2-C5-15-03-v1
5. ELECTRICAL INSTALLATION MANUAL
Installation works may be performed only by duly qualified personnel. The following requirements must be fulfilled
during installation.
It is recommended to lay control circuit cables separately from power ca-
bles or to use shielded cables. In this case, the cable shielding must be
grounded!
5.1. Air Handling Units Sections Connection
After unit parts have been connected together (see Units Installation Instructions), the connecting cables and wires
of the sections of the unit are connected.
Connector connection is performed strictly according to numeration given
in wiring diagram, or adequate markings (see unit electric scheme).
When disconnecting sections of the unit, do not pull connecting wires and
cables!
5.2. Electric Power Supply Connection
Electric power supply (400 V AC; 50 Hz voltage) is connected to the main switch, which is envisaged in the heat
exchanger (middle) section of the air handling unit. Prior to connecting to the power supply, the main switch must
be installed near the unit in the intended place or directly on its wall. It is necessary to connect earthing!
Unit must be connected to the stationary installation by solid cable through
circuit breaker with 300 mA current leakage protection.
The power supply cable of the unit and electrical heater is selected according to the maximum current strength
indicated in the presented technical data sheet. The cable types are indicated in Table 5.2.
5.2 Table. Electric power supply cable types
Current, A
Cable type
15
5 x 1,5 mm
2
(Cu)
21
5 x 2,5 mm
2
(Cu)
27
5 x 4,0 mm
2
(Cu)
34
5 x 6,0 mm
2
(Cu)
50
5 x 10,0 mm
2
(Cu)
70
5 x 16,0 mm
2
(Cu)
85
5 x 25,0 mm
2
(Cu)
Before connecting unit to the electrical power supply, it is necessary to check whether earthing has been installed
properly.
5.3. External Elements Connection
The air handling unit is designed with external connection terminals which are located on the controller box, in the
middle (heat exchanger) section. All external control elements are connected to the terminals.
