Airwell Wespak 2.69 [5/28] Air inlet and outlet arrangement

Page 5

Air Inlet and Outlet Arrangement

Fan discharge arrangement Fan suction arrangement

A B C D E

 A, B, D and E arrangement can only be obtained with the use of

a separate fan section n° 9.

 No possibility to have an integrated filter in fan section n° 9.

 Single section WESPAK unit does not allow a 90° in/out air

flow.

Section 4 Section 9A Arrangement M49A

 Unit including two sections are always referenced by a double

digit reference and a letter, (e.g. M49).

 Single section units are identified by only one digit reference

without any letter defining the air in / out flow direction.

 Coding of single section units : pages 6 and 8.

 All units with double sections are shipped bolted together.

 Coding of all arrangements : page 6 to 8.

Non compatible arrangements

 Ceiling mounted units arrangements :

84 - 85 - 86 - 87

94 - 95 - 96 - 97

 Wall mounted units arrangements :

81 - 82 - 83 - 84 - 85 - 86 - 87

91 - 92 - 93 - 94 - 95 - 96 - 97

Prohibited applications

 Electric heating coil BE3 upstream of fan.

 Heating coil upstream of fan when off-coil temperature exceeds

50 °C.

 Electric heating coil within VM49 section.

Unsuitable arrangements

 M39 - M59 - M83 - M93 arrangements, if 100 % fresh air of

winter season is flowing directly on chilled water coil (without

glycol solution) located upstream of heating coil.

 Use of fan section (arrangement 9) when the external resistance

is below 50 Pa.

Recommendations

 Use of moisture eliminator in case cooling coil face air velocity

above 2.7 m/s (see curve page 13).



Use of external filter on arrangements : HM 90 to 93 - VP 1

- VM 19 - VM 39 - VM 90.

 Use of metallic filter in the vicinity of electric heating coil.

Double Section Assembly

Assembly Precautions