T9901090-5-1 UK (v9)
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11.2 Overheat safety cut-out indication
For electric heated air curtains the Ecopower
PCB includes a fault indication signal for if the
overheat safety cut-out on the electric heater
operates.
Volt free changeover contacts (6A 250VAC
30VDC) can be wired via the 3-way screw
terminal “HEALTHY” (see Fig 14).
Refer to Section 18.1: Overheat Safety cut
out, for how to reset a overheat safety cut-out
situation.
11.3 Weather compensation control
(Summer/Winter)
To save heating energy on warmer days a simple weather
compensation (Summer/Winter) heat control strategy can
be used. Fit an outdoor air thermostat with volt-free
contacts (supplied by the installer) to a north facing wall.
Use a 2-core cable to connect the outdoor air thermostat to
2-way terminal IN1 on the Ecopower PCB (see Fig 15)
On the Ecopower PCB, set DIP 4 to OFF as per Table 4,
(see Section 11.1: Remote switch contacts IN0, IN1).
WARNING:
Do not apply any voltage to terminal IN1 as this will damage the Ecopower PCB.
NOTE:
To promote increased energy saving a more advanced weather compensation control strategy is available from
Thermoscreens. Using a heating curve, the discharge air temperature of the airstream coming from the air curtain
is controlled against the outside air temperature. Visit the Thermoscreens website for details.
C
NC
ALARM!
NO
HEALTHY
Fig 14
Fig 15
Switch Contact Closed = Heating Enabled (cold day)
Switch Contact Open = Heating Disabled (warm day)
Outdoor Air
Thermostat
