HEX390 Installation & Commissioning Instructions September 2016
14
1.
Heater Kit
Yes/No (default Yes)
If No - heater options are removed from all menus.
If Yes - heater options are available in User menu - Heater On/Off for continuous or night
heat (to times as set below) .
To set night heat option:
•
press up arrow to select Yes, then:
•
press mode to display
‘Heater Times’
>display then changes automatically to show
the current settings (default: ) >display changes again to
‘Change Times’
Yes/No (default No).
•
At this point, use then to select Yes & change the times.
•
Select desired
Heater ON
time in Hours:Mins using or
•
Select desired
Heater OFF
time in Hours:Mins using or
•
Heater Test Yes/No (default No)
•
change to Y, heater test will be performed. If there are any faults (including no
heater connected),
‘Heater Fault’
will display. (See menu item 3.Fan Speed Heat for
possible Heater Fault causes.) To reset Heater Fault display, turn unit off.
2.
Max Fan Speed
(default 60%) – Range is 35% to 100% adjustable in 1% increments using up
& down arrows. For a large house set to a max of 100%.
House size
Max Setting
Upto 120m2
50%
120m2 - 180 m2
70%
180 m2-250 m2
100%
280 +
Two or more units recommended
3.
Fan Speed Heat
(default 45%) – Range is 30% to 60% adjustable in 1% increments using up &
down arrows.
Fan Speed Heat
sets a minimum speed for the fan to ensure enough airflow for the heater
to operate. There are many duct fan combinations, some more restrictive to airflow than
others. Therefore, when setting up, the installer must check that the heater operates
without
‘Heater Fault’
flashing on the display.
‘Heater Fault’
is triggered when the heater
is operating but draws no current, this is most often due to insufficient airflow causing
the airflow proving switch to cut off. If there is insufficient airflow, increase the ‘Fan Speed
Heat’ setting. Heater fault may also be caused by manual reset thermal cutouts which may
need to be reset.
4.
Winter Mode
Yes/No (default Yes). Winter mode shuts the system down when the outside air
temperature gets below eg 2°C. If Winter Mode is on, another menu item will appear to allow
adjustment of actual shut down temp: Range -2°C to +5°C.
Heater ON 19:00
Heater OFF07:00
Digital Controller - Commissioning Instructions - Menu Options
Digital Controller - Commissioning Instructions
(continued)
