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General description,
Illustration
Parts
description
6
continued
Control panel
Fan cabinet 1
Fan cabinet 2
Part
Duct connection 1
Duct connection 2
Duct connection 3
Duct connection 4
Filter 1
Filter 2
Fan cabinet 1
Fan cabinet 2
*Supply fanbox can be fitted with electrical preheat element (accessory)
Duct 1
Filter 1
Filter 2
Bypass
Reverse flow heat exchanger
Fig. 1
Mode A
Extract-
Exhaust –
Outside air–
Supply -
Extraction filter G4
Supply filter G4 or F7
Extractor fan
Supply fan*
Duct 4
Duct 3
Mode B
T3
Outside air –
T4
Supply
T1
Extract
T2
Exhaust
Supply filter G4 or F7
Extraction filter G4
Supply fan *
Extractor fan
Continued overleaf
Duct 2
T1
T2
T3
T4
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