{"id":11848,"date":"2018-07-24T11:07:15","date_gmt":"2018-07-24T09:07:15","guid":{"rendered":"https:\/\/www.kromschroeder.de\/process-heat\/products\/kromschroeder-system-technology\/gas-systems\/gas-utilization\/air-supply\/air-supply-without-fan-control\/"},"modified":"2018-07-24T11:09:38","modified_gmt":"2018-07-24T09:09:38","slug":"air-supply-without-fan-control","status":"publish","type":"page","link":"https:\/\/www.kromschroeder.de\/en\/kromschroeder-system-technology\/gas-systems\/gas-utilization\/air-supply\/air-supply-without-fan-control\/","title":{"rendered":"Air supply without fan control"},"content":{"rendered":"

[et_pb_section bb_built=”1″ fullwidth=”on” specialty=”off” _builder_version=”3.0.89″ next_background_color=”#000000″ global_module=”3071″][et_pb_fullwidth_menu global_parent=”3071″ _builder_version=”3.0.89″ menu_id=”52″ submenu_direction=”downwards” fullwidth_menu=”off” background_layout=”dark” background_color=”#000000″ active_link_color=”#aaaaaa” dropdown_menu_text_color=”#ffffff” mobile_menu_text_color=”#000000″ dropdown_menu_line_color=”#ffffff” mobile_menu_bg_color=”#ffffff” \/][\/et_pb_section][et_pb_section bb_built=”1″ fullwidth=”on” specialty=”off” prev_background_color=”#000000″ next_background_color=”#000000″ _builder_version=”3.8.1″ global_module=”10523″][et_pb_fullwidth_menu admin_label=”KST Men\u00fc” global_parent=”10523″ _builder_version=”3.8.1″ menu_id=”83″ submenu_direction=”downwards” fullwidth_menu=”off” background_color=”#3f3f3f” background_layout=”dark” \/][\/et_pb_section][et_pb_section bb_built=”1″ _builder_version=”3.0.60″ custom_padding=”0px||0px|” next_background_color=”#f1f1f1″ prev_background_color=”#000000″ global_module=”1488″][et_pb_row global_parent=”1488″ custom_padding=”0px||0px|” background_position_1=”top_left” background_repeat_1=”no-repeat” _builder_version=”3.0.60″ background_size=”initial” background_position=”top_left” background_repeat=”repeat”][et_pb_column type=”4_4″][et_pb_dmb_breadcrumbs global_parent=”1488″ font_icon=”%%36%%” _builder_version=”3.0.89″ body_font_size=”11px” body_text_color=”#666666″ link_text_color=”#666666″]<\/p>\n

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    KST – KROMSCHR\u00d6DER SYSTEM TECHNOLOGY<\/h1>\n

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    Air Supply<\/h1>\n

    overview<\/a><\/p>\n

    Air supply without fan control<\/h1>\n
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    Standard: EN 746-2<\/a><\/p>\n<\/div>\n<\/div>\n

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    \n\n\n\n\n\n\n\n\n\n\n
    No.<\/th>\nComponent description<\/th>\nStandards and Docuthek<\/th>\n<\/tr>\n<\/thead>\n
    010-020<\/td>\nPressure gauge, e.g. pressure gauge with capsule element KFM with pressure gauge valve DH or MH<\/td>\nDocuthek<\/a><\/td>\n<\/tr>\n
    030<\/td>\n3\/2-way valve for checking air deficiency cut-out contact changeover<\/td>\n<\/td>\n<\/tr>\n
    040<\/td>\nAir deficiency cut-out, e.g. pressure switch DG<\/td>\n5.2.2.5.1 Air<\/a><\/p>\n

    Docuthek<\/a><\/td>\n<\/tr>\n

    050<\/td>\nAir flow detector, e.g. pressure switch DG as differential pressure switch<\/td>\n5.2.2.5.1 Air<\/a><\/p>\n

    Docuthek<\/a><\/td>\n<\/tr>\n

    060<\/td>\nAir orifice, e.g. Type VMO for air flow monitoring with differential pressure switch<\/td>\nDocuthek<\/a><\/td>\n<\/tr>\n
    <\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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    <\/h1>\n
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    Application<\/h1>\n

    Central combustion air supply with air deficiency cut-out and air flow monitoring<\/p>\n<\/div>\n

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    Function<\/h1>\n

    The supply air pressure generated by the upstream fan is monitored by the pressure switch (040) acting as an air deficiency cut-out. When the heating system is started by the process control system, the 3\/2-way valve (030) is actuated in order to check the contact changeover at the pressure switch.<\/p>\n

    During the pre-purge, a differential pressure switch (050) monitors the air flow on the orifice (060).<\/p>\n<\/div>\n

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    Notes<\/h1>\n

    – EN 746-2 recommends that the intake filter on the fan be monitored for soiling. This can occur directly through a differential pressure switch on the filter or indirectly through a second air pressure switch on the pressure side of the fan. The filter monitoring pressure switch triggers a warning, however it does not need to be linked into the safety interlocks.<\/p>\n

    – In many cases it is recommended that the combustion air be taken in from outside the production hall so as to extend the cleaning intervals for the intake filter. However, drawing in air from the outside does not do away with the need for an intake filter.<\/p>\n<\/div>\n

    overview<\/a><\/p>\n<\/div>\n

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