Thermoscreens C series, Installation, Operation & Maintenance Instructions Manual

Page: 14 / 16

4001160-6 UK Page 14 of 16
Commissioning
Set the discharge grille vanes so they point straight downwards over the doorway. Once
the air curtain is functioning check that the fans operate at Low, Medium and High
speeds, that there is no excessive mechanical noise coming from the fans and that all
fans are working. If the unit is electric or water heated check that the air stream from the
discharge grille warms up across the whole length of the air curtain when heating is
selected. Check that heating increases as higher heat is selected and feel to see that
the warm air stream is reaching across the doorway with door open or closed. If
necessary the vanes of the discharge grille can be angled either inwards or outwards if
this gives better penetration/warming of any incoming draughts. If an Ecopower
controller is being used check its operation in Manual Mode. Then select Auto Mode and
increase the heating set point until the air stream warms up. Reduce the heating set
point until the air stream goes cold.
Explain to the end user that the doorway should be closed whenever possible but that
during times of high pedestrian use it will become effectively ‘open doorway’. The air
curtain serves an essential purpose by saving energy and providing comfort to the
occupants when compared to an open doorway with no air curtain fitted.
Before leaving site it is important that the air curtain installation is “Handed-Over” to the
end user or his representative and the operation of it is fully explained and that they
understand how it operates. Explain also the service intervals and that the unit must be
regularly cleaned and if it has filters fitted that these require regular cleaning or
replacement.
Fault Conditions
In the event of a fault the thermal cut out(s)
(Note: If the mains supply is isolated during
operation then the thermal cut outs may operate)
or internal fuses may operate. The
thermal cut out(s) are located on the top face of the unit directly above the element
banks (one on the 1 & 1.5m and two on the 2m model). For Ecopower units two internal
electrical fuses are located on the Ecopower board; 6.3A (T) supplies the fan motors
within the air curtain and 125mA (F) controls the operation of the Ecopower board. For
Ambient and Standard LPHW units the fuse is located within the control panel at the left
hand end of the air curtain.
If for an electric heated air curtain an overheat fault occurs, or if J2 link is missing for
LPHW models, the LED’s on the remote control will flash and the Ecopower board status
LED on the board will be permanently red to indicate a fault.
In the case of a fault condition (refer to flowchart) do not attempt to reset the thermal cut
outs or replace the fuses, arrange for a Thermoscreens appointed technician or certified
electrician to attend the unit to investigate the reason why the thermal cut outs/fuse(s)
have operated. Once the cause has been determined and rectified, they will
reset/replace the thermal cut out/fuse and function test the unit.
PCB Status
Fitted on the PCB board inside of the air curtain is an LED shown as LED1 on wiring
diagrams that will indicate the Ecopower control status.
1. LED flashing green – operation normal.
2. LED flashing red – low supply voltage or controller not plugged into Ecopower
motherboard.
3. LED permanently red – thermal cut outs open circuit (electrically heated models) or
J2 link missing (LPHW models). Remote Control LED’s will also flash to indicate the
thermal cut-out(s) has operated or J2 link is missing.
Note to reset the thermal cut outs please refer to Fault Conditions section detailed above.