HEX390 Installation & Commissioning Instructions September 2016
8
HEX Attic box
Terminate
separately
the grey &
brown wires
from the
HEX unit
Attic control box
Attic box can be mounted
on or near the unit.
Wall Controller
Digital or manual 3 speed controller (located
inside the attic box for transportation and
storage), should be installed in the hallway or
lounge, adjacent to one of the extract grilles.
Temperature sensor
mounted in fresh air inlet
Temperature
sensor wire
plugs in here
Cat5 cable to digital
wall controller
For digital controller, mount
with pack glands downwards
In-line Duct Heater (for digital model only)
If installing HT or HT15, ensure the duct heater
is securely installed horizontally and ensure the
air flow meets the minimum required.
Digital sensor (for digital model only)
Placed into incoming fresh air flow, through the
pre-drilled hole, and fixed with the cable tie.
Installation Instructions
(continued)
