Mark EASYAIR Livret Technique page 5

(400VAC/50Hz) and a separate 1 phase supply (230VAC/50Hz) for the fans! For ratings see the
type shield inside the air curtain.
The air inlet grill needs to be released (click system) before the access hatch can be opened.
Use a flat screwdriver to release it, be careful not to damage the paintwork. The 230VAC/50Hz
main supply needs to be equipped with a two-pole isolator and an additional three-pole isolator
for the three-phase 400VAC/50Hz main supply for electrically heated air curtains. Preferably
use an automatic circuit breaker with a sufficient slow characteristic that can withstand the fans
relatively high running current.
!
All work concerned with the electrical installation of the air curtain MUST be
performed by skilled and qualified technical personnel (electricians) only.
All connections must conform to current local regulations.
Connection of the controller
Every air curtain is completed with a digital controller and its plug in connecting cable. The
controller is specified as type GTM II for water heated air curtains and as type GTM IIE for
electrically heated air curtains. The digital controller is connected at the 'CONTROL' terminal
block, positioned on the right hand top side of the air curtain, by using the provided cable. On
the cable two male RJ-45 connectors are attached, standard cable length is 20 meters. A cable
with a length of 50 meters is available on request. It is not possible to connect separate cables to
each other to enlarge the cable length. Air curtains equipped with a triac-based controller have
a second connection ('AUXILIARY' of 'AUX') to connect multiple air curtains on one controller.
If an air curtain is equipped with a transformerbased controller (a second connection is not
present) an optional Y-adapter is available on request to connect multiple air curtains on one
controller. Every controller has a memory function, in case of a power failure the selected fan
speed will be returned after the power is re-established. Every controller is also provided with
a potential free contact. This contact can be used for any remote ON/OFF device, for example
a Building Management System, switching thermostat, clock timer or fire alarm. See for details
the wiring diagrams further in this manual and the operation manual enclosed with the GTM
controller.
GTM II, water heated
The air curtain is switched ON and OFF by selecting the desired fan speed through the touch
controls and are indicated by lighted LED's.
GTM IIE, electrically heated
The air curtain is switched ON and OFF by selecting the desired fan speed through the touch
controls and are indicated by lighted LED's. If the air curtain is switched off this will be indicated
by lighted red LED's ('OFF'). The maximum heating capacity depends on the selected fan speed,
see table below:
fan speed
1
2
3
4
5
All manuals and user guides at all-guides.com
maximum heating capacity
1
1
2
3
3
EN
5