9
EN
INSTALLATION CONSIDERATIONS
4. Excessive use of ex-duct and long ex-duct runs should be avoided.
5. Fire dampers must be tted as per national and local re regulations.
6. Unit must not be exposed to ambient temperature above 40°C and should not face an open re.
7. Take action to avoid dew and frost. As shown by drawing below, unit will produce dew or frost when
saturation curve is formed from A to C. Use pre-heater to ensure conditions are kept to right of the
curve (B to B’,to move C to C) to prevent condensation or frost formation.
8. To avoid the outdoor exhaust air cycling back to indoor, the distance between the two vents installed on
the outside wall should be over 1000mm.
9. If heater is equipped to the unit, operation of heater should be synchronous with the unit, so that the
heater starts to work only when unit starts.
10. Duct mufer may be considered if user wants indoor noise to be minimized.
To Next Page
Loading...
