18/10/18 9
UKUNDA
SIG AH
Heat Recovery unit
Installation-Operation-Maintenance
reserves the right to change the specifications of the product at any time without prior notice
6 ELECTRICAL INSTALLATION PROCEDURE
Warning! Always unplug the unit during the installation.
The unit must be earthed, a fuse is available , protect each unit by residual-current circuit breaker (RCCB) and
thermomagnetic cut-out device.
We recommend to check if the supply system is already in accordance to your regional safety regulations.
Connect the wiring to the electrical box.
Touch screen control has to be connected to the board with a RJ45 8-pole Ethernet straight cable of Cat.5 (or
higher).
The unit can be equipped with two external control (Input 0-10 V) to set unit on-off, bypass on-off or proportional air
flow control; it can also give two output signals configurable on unit run-bypass open-unit fault.
Important: Input and output configuration is to be set in the touch screen control - service menu -.
Priority: when the unit receives an off command, whatever the input has given it, this has always the priority.
6.1 ELECTRIC CONNECTIONS
POWER CONNECTION :
1. Unscrew the electric box
small lid
2. Remove the cover to reach
the power plug and pull it
out, Connect the power cable
in conformity with the labels
located on the board
3. Close the box and lay the
cable under the cover recess
remove the left hand side panel
