6
heatline
Duct mounted Heaters
Duct/Unit Installa on
ecovent
Duct Mounted Heaters
mini
Installa on 4
Con nued
A differen al pressure switch is used within the system to detect a loss of airflow throughout the
system. It is used to switch off the ancillary electric heater to prevent the unit from overhea ng and
causing hazardous situa ons.
For the airflow pressure switch to func on correctly, ensure the pitot tapping points are connected
to the ancillary electric heater and the ecovent mini unit using appropriate tubing. The ancillary
heater has a dedicated pitot tapping point located externally on its casework. The ecovent mini unit
has a ø20mm blind grommet, which can be u lized.
Ensure adequate protec on and strain relief is given, and in doing so also ensure that no internal
components are damaged during this installa on. Please note that the fan impeller is situated
directly behind this ø20mm hole.
Insert the pitot tubing
no more than 25mm
into the
ecovent mini
unit
Check all pitot tubing to ensure there are no sharp bends or kinks. Tubing should be supported
where necessary.
Failure to do so will cause the heater to malfunc on and could result in a loss of hea ng.
A hard-wired connec on between the heater and
ecovent mini
unit is required.
See page 9
Heater pitot
Important
Important
Cau on
Important
ecovent mini
pitot
ecovent mini
unit
supply air duct
connec on
supply air
duct
connec on
remote heater install
LPHW Coil install
Moun ng Detail
with
ecovent mini
Fig.
4
