UAB KOMFOVENT we reserve the right to make changes without prior notice
RHP-C5.1_21-01
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6. ELECTRICAL INSTALLATION MANUAL
Installation works can be performed only by the specialists that have required qualification. During
installation following requirements must be fulfilled.
It is recommended to lay control cables separately from power cables, or use
shielded cables. In such case it is necessary to earth cable shielding!
6.1. Air Handling Units Sections Connection
After unit parts have been connected together (see unit installation instruction), unit sections connecting
cables and wires are connected.
Connector connection is performed strictly according to numeration given in
wiring diagram, or adequate markings (see unit electric scheme).
When disconnecting unit sections, do not pull by connecting wires and cables!
6.2. Electric Power Supply Connection
If the air handling unit voltage is ~230 V; 50 Hz it is necessary to install the socket with grounding of
corresponding capacity (see electric diagram unit). If the voltage is ~400 V; 50 Hz, the cable of electrical
power supply is connected to the main switch, which is located on the unit’s outside wall. It is necessary
to connect earthing! Types of cables of connection of electrical power supply are specified in 6.2 Table:
6.2 Table. Electrical Power Supply Cable Types
Air Handling Unit Type
Cable type
RHP 600 U
3 × 1,5 mm
2
(Cu)
RHP 800 U, RHP 1300 U, RHP 1500 U
5 × 2,5 mm
2
(Cu)
Air handling units designed for 400 V AC supply voltage must be connected to
the stationary installation by solid cable. It is recommended to connect AHU to
the mains via automatic circuit breaker with 300 mA current leakage protection
(type B or B+).
Before connecting unit to the electrical power supply, it is necessary to check
whether earthing has been installed properly.
