Warning
Do not connect any unit to an electrical supply voltage outside of the specifica on.
This document refers to 0-10 V control input.
In some cases a 4-20 mA control input may have been provided.
Important
•
Supply to the heater should be 1ph or 3ph and a neutral - refer to name plate for
correct supply.
•
The heater is fi ed with a manual reset high temperature cutout which has NC (normally
closed) terminals and an air flow pressure switch. This is connected in series with the
main contactor coil circuit, to remove power from the heater in the event of over-
temperature or airflow failure.
Under no circumstances is this circuit to be by passed.
•
Ensure sufficient earth connec on to terminal is provided.
•
The speed controller must not switch off fan independent of control system or allow
airflow to fall below stated volume on the electric he ater ba ery.
•
Fan run on mer r equired. Turn off 0-10 V heat demand signal 2 minut es before fan
enable signal.
•
Separate cables should be ins talled for 0-10 VDC, Control signal and 24 V AC switched
enable signal in c ompliance BS7671/2018.
Warning
Cau on
Important
The electrical supply
must be fully isolated
before a emp ng to affect any work on this unit.
All electrical connec ons to any unit must be carried put in accordance with the current
edi on of the I.E. T Regula ons, only c ompetent Electricians should be allo wed to affect any
electrical work to our units.
Warning
It is the cus tomer’s responsibility to supply earth fault protec on through the bui lding
installa on device and a dedicated, isolated power supply with overload protec on.
Important
Important
Recommended
cable entry point
Recommended cable
entry point
Remove Cover before
making cable entry.
8
heatline
Duct mounted Heaters
ecovent
Duct Mounted Heaters
mini
Standard Wiring
& Installa on
5
It is recommended that the cable entry point should be at the end of the control sec on as shown in the figure
below.
It is the responsibility of the installer to ensure that a suitable cable gland (giving adequate protec on and strain
relief) is fi ed, and in doing so also ensure that no internal components are damaged during this installa on.
Make certain all swarf is removed before use.
Fig.
7
