S&P UTBS Series, Инструкция по установке. Инструкция по использованию.

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in the opposite direction from normal air circulation can achieve an optimal finish, it is
recommended that you always have a set of replacement filters on hand. Under no cir-
cumstances should the unit be run without filters, since this can introduce dirt into vital
components of the unit and lead to equipment wear and loss of efficiency.
9.5.1. REPLACING THE FILTER IN THE MAIN UNIT AND SIDE-BY-SIDE
OR STACKED RECOVERY UNIT.
To remove the filter, open the inspection door, and remove the filter by pulling it out. For the
high efficiency filters (from F6), an easy fixing system is used to assure higher tightness.
Turn handle and remove the filter. This system is found on the filter modules and side-by-
side or stacked heat recovery modules too.
9.5.2. REPLACING FILTERS FOR IN-LINE RECOVERY MODULES
To remove the filter, open the inspection door by pulling it out. Turn the handle and remove
the filter.