HEX390man & HEX390digi - Operating Instructions, Installation Instructions, Wiring diagrams Sept 2015
3
Return Air filter
Fresh Air filter
Optional
Internal On/Off
Thermostat
3 speed switch
3 speed switch
The 3 speed switch has four settings:
0 - Off
1 - Low
2 - Medium
3 - High
Manual Controller
User Operating Instructions
This unit has High / Medium / Low speeds which the homeowner can use to
regulate the fresh air amount to suit the load. Typically:
• High where a number of people are living in the house and/or outside
temperatures are moderate
• Medium less people in the house and/or colder outside temperatures
• Low mainly to keep air fresh in the home during extremely cold conditions.
Internal On/off thermostat (optional)
For the manual controller, the
optional thermostat can be set so the unit turns off if incoming air exceeds
the set point (eg if thermostat is set to 30, the unit will turn off if the incoming
fresh air is above 30ºC).
