UTICA BOILERS CCB-150 Instruction Manual page 29

1-model combi boiler for ch and dhw production 2-models heating only
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Fan and Venturi – All Models
120 Vac Fan with phase cutting to control the speed according to air pressure transducer signal.
Venturi is placed inside the fan. The Venturi produces a dynamic negative pressure signal which is sent
tot he air pressure transducer.

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This manual is also suitable for:

Chb-100Chb-130

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