Kaysun KRE-1500DX1, Installation And Maintenance Manual

Page: 23 / 48

Before starting any operation, make sure that the main power supply line has been isolated.
Make the connection using cables with suitable section for the
power used and in compliance with the
local regulations. Their
dimension must be such to realise a voltage drop in the start-up phase, lower by 3%
of the nominal value.
• The use of adapters, multiple sockets and/or extensions is not allowed to power the heat recovery unit.
•
It is the installer's responsibility to assemble the unit as near as possible to the power supply isolator and
the necessary to protect the electric parts.
• Connect the unit to an efficient earth socket, using the relevant screw inserted in the unit itself.
• The electric connections to the control board must be made by specialised staff according to the diagrams supplied.
• Make sure that the voltage and the frequency stated on the plate
correspond with those of the electric
connectionline.
• The electric connections to the control board must be made by specialised staff according to the diagrams supplied.
• Make sure that the voltage and the frequency stated on the plate
correspond with those of the electric connection
line.
8.1 ELECTRONIC CONTROL AND ADJUSTMENT OF THE UNIT
The unit is supplied with a built in PCB for ventilation management, that interfaces flexibly with the AHU kit.
The thermoventilation board settings are factory setted, subject to agreements with the manufacturer technical
department. They can be changed only with a service display (not supplied with the unit). The ventilation is switched
on from the control panel of the AHU kit to the factory set speed.
Specific electrical wiring diagram are suplpied with each unit, in function of the the AHU kit model.
The Manufacturer recommends to carefully read the Instruction Manual of the AHU kit.
8 - ELECTRIC CONNECTIONS
pag. 23