51
TRS
24/07 5979398_00
1. Be sure the ceiling height is no less than the Figures in above table B column (paragraph "7.3Installation location and
unit positioningp.49").
2. Unit must not be installed close to boiler ues.
3. Do not install pipes as indicated below to avoid excessive pressure drop.
A Serve bends
B Multiple direction changes
C Multiple reducers / Crimped
duct
A B C
4. Exessive 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.
8. 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.
If this situation arises, pre-heat the fresh air to pass from B to B’, and bring C to C’. This will prevent the formation of con-
densate and ice.
9. To avoid the outdoor exhaust air cycling back to indoor, the distance between the two vents installed on the outside
wall should be over 1000 mm.
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