Section 4 – Installation
Fig 4.5A Link wire fitted to Main Connector PCB
Fig 4.5B Link wire fitted to External Sensors PCB.
(See Section 4.5.8 if an external smoke detector sensor is required).
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Section 6 – Control / Service menu
Room pressure Fault Action
One of the Flue detection inputs (Default is Flue detection 2) can be used with an external pressure sensing
control.
Pressure sensing controls are used in the room containing the open flue fuel burning device.
When there is a pressure fault, the volt free output from the control is open.
Use the “Room pressure Fault Action” menu to setup how the Flue Speeds are implemented in the event of a
room pressure fault :
•
Set Action by “Flue Detection Input” or “No action”. (
Default is Flue Detection input 2
)
When the selected input is :
•
Open :
The fan speeds gradually increase in order to correct the room pressure.
•
Closed :
The fans run at existing Flue speed
Settings must be made by a qualified technician during setting up and do not normally require any further
changes.
NOTE!
If the external pressure sensor continues to detect a fault, and the ventilation unit cannot make any
further adjustments, then the ventilation unit will shutdown and display a fault message “Check
Fireplace ventilation”.
NOTE!
A link wire is preinstalled to Flue Detection input 2. If an external pressure sensing control is used
then this link MUST be removed.
WARNING:
In the event of the unit shutting down and displaying “Check Fireplace ventilation” :
•
The cause of the room pressure fault must be investigated and fixed before restarting the unit.
•
To restart: Press OK for more than 5 seconds.
NOTE!
Changes made using the Installer menu can have a significant effect on the operation of the
ventilation system.
•
The set up procedure should only be made by a qualified technician.
Incorrect settings can affect the efficiency and noise of the system and can cause system failures.
NOTE!
If no settings are made for 180 seconds, the display returns to the standard display.
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