{"id":29971,"date":"2026-03-11T14:54:00","date_gmt":"2026-03-11T19:54:00","guid":{"rendered":"https:\/\/spxcooling.com\/?page_id=29971"},"modified":"2026-03-11T14:58:01","modified_gmt":"2026-03-11T19:58:01","slug":"marley-fan-motor-space-heater-interface","status":"publish","type":"page","link":"https:\/\/spxcooling.com\/zh\/cooling-tower-parts\/controls\/marley-fan-motor-space-heater-interface\/","title":{"rendered":"Marley \u98ce\u6247\u7535\u673a\u7a7a\u95f4\u52a0\u70ed\u5668\u63a5\u53e3"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; custom_padding_last_edited=&#8221;on|phone&#8221; admin_label=&#8221;Hero&#8221; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;22px|0px|0px|0px|false|false&#8221; custom_padding_tablet=&#8221;&#8221; custom_padding_phone=&#8221;6px||||false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.16&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; width=&#8221;100%&#8221; custom_margin=&#8221;12px||0px||false|false&#8221; custom_padding=&#8221;12px||8px||false|false&#8221; use_custom_width=&#8221;on&#8221; custom_width_px=&#8221;700px&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.27.5&#8243; text_font=&#8221;Roboto|||on|||||&#8221; text_text_color=&#8221;#0c71c3&#8243; text_font_size=&#8221;22px&#8221; text_line_height=&#8221;1em&#8221; ul_font=&#8221;||||||||&#8221; header_font=&#8221;Roboto|700||on|||||&#8221; header_font_size=&#8221;52px&#8221; text_orientation=&#8221;center&#8221; custom_margin=&#8221;|0px|0px|0px|false|false&#8221; custom_padding=&#8221;|0px|0px|0px|false|false&#8221; header_font_size_tablet=&#8221;66px&#8221; header_font_size_phone=&#8221;44px&#8221; header_font_size_last_edited=&#8221;on|phone&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h1>Marley Fan Motor Space Heater Interface<\/h1>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.27.5&#8243; text_font=&#8221;Roboto|||on|||||&#8221; text_text_color=&#8221;#0c71c3&#8243; text_font_size=&#8221;22px&#8221; text_line_height=&#8221;1em&#8221; ul_font=&#8221;||||||||&#8221; header_font=&#8221;Roboto|700||on|||||&#8221; header_font_size=&#8221;60px&#8221; header_letter_spacing=&#8221;1px&#8221; header_line_height=&#8221;0.9em&#8221; text_orientation=&#8221;center&#8221; custom_margin=&#8221;0px|0px|10px|0px|false|false&#8221; custom_padding=&#8221;0px|0px||0px|false|false&#8221; header_font_size_tablet=&#8221;66px&#8221; header_font_size_phone=&#8221;36px&#8221; header_font_size_last_edited=&#8221;on|phone&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p>Cooling Tower Parts<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_2,1_4,1_4&#8243; _builder_version=&#8221;4.16&#8243; height=&#8221;15px&#8221; custom_margin=&#8221;0px||0px||false|false&#8221; custom_margin_tablet=&#8221;&#8221; custom_margin_phone=&#8221;||5px||false|false&#8221; custom_margin_last_edited=&#8221;on|phone&#8221; custom_padding=&#8221;0|0px|0px|0px|false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_2&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;0px||0px||false|false&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.27.5&#8243; text_font=&#8221;Lato||||||||&#8221; text_text_color=&#8221;#8f8f8f&#8221; text_line_height=&#8221;1em&#8221; width=&#8221;100%&#8221; module_alignment=&#8221;center&#8221; height=&#8221;10px&#8221; custom_margin=&#8221;0px||0px||false|false&#8221; custom_padding=&#8221;0px||0px||false|false&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p>Brand: <b>Marley<\/b> | Product Type: <b>Cooling Tower Controls<\/b><\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;0px||0px||false|false&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][\/et_pb_column][et_pb_column type=&#8221;1_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;0px||0px||false|false&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;Features&#8221; _builder_version=&#8221;4.16&#8243; custom_margin=&#8221;0px||||false|false&#8221; custom_padding=&#8221;0px||||false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row column_structure=&#8221;2_5,3_5&#8243; use_custom_gutter=&#8221;on&#8221; gutter_width=&#8221;1&#8243; make_equal=&#8221;on&#8221; _builder_version=&#8221;4.16&#8243; width_tablet=&#8221;&#8221; width_phone=&#8221;90%&#8221; width_last_edited=&#8221;on|phone&#8221; custom_margin=&#8221;5px||0px||false|false&#8221; custom_padding=&#8221;0|0px|0px|0px|false|false&#8221; border_color_all=&#8221;#d6d6d6&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;2_5&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; border_color_top=&#8221;#8f8f8f&#8221; border_color_bottom=&#8221;#8f8f8f&#8221; border_color_left=&#8221;#8f8f8f&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_image src=&#8221;https:\/\/spxcooling.com\/wp-content\/uploads\/Fan-Motor-Space-Heater-Cooling-Site.jpg&#8221; alt=&#8221;Marley AIO Control Panel&#8221; show_in_lightbox=&#8221;on&#8221; align=&#8221;center&#8221; force_fullwidth=&#8221;on&#8221; _builder_version=&#8221;4.27.5&#8243; custom_margin=&#8221;|0px||0px|false|false&#8221; custom_padding=&#8221;1px|1px|1px|1px|false|false&#8221; animation_style=&#8221;fold&#8221; border_width_all=&#8221;1px&#8221; border_color_all=&#8221;#8f8f8f&#8221; global_colors_info=&#8221;{}&#8221; title_text=&#8221;Fan-Motor-Space-Heater-Cooling-Site&#8221;][\/et_pb_image][\/et_pb_column][et_pb_column type=&#8221;3_5&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; border_color_top=&#8221;#8f8f8f&#8221; border_color_right=&#8221;#8f8f8f&#8221; border_color_bottom=&#8221;#8f8f8f&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.16&#8243; text_font_size=&#8221;16px&#8221; header_2_font=&#8221;Roboto||||||||&#8221; header_2_font_size=&#8221;20px&#8221; custom_margin=&#8221;0px||0px||false|false&#8221; custom_margin_tablet=&#8221;&#8221; custom_margin_phone=&#8221;18px||||false|false&#8221; custom_margin_last_edited=&#8221;on|phone&#8221; custom_padding=&#8221;|12px|0px|12px|false|false&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2>Overview<\/h2>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.27.5&#8243; header_2_font=&#8221;Roboto||||||||&#8221; header_2_font_size=&#8221;20px&#8221; custom_margin=&#8221;0px||||false|false&#8221; custom_padding=&#8221;0px|12px||12px|false|false&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<p>The Fan Motor Space Heater Interface provides a reliable, integrated solution for coordinating fan motor space heaters with fan motor control systems, including Variable Frequency Drives (VFDs). Designed to protect motors from condensation-related damage, the interface automatically energizes space heaters only when the fan motor is off and ensures they remain de\u2011energized whenever the motor or VFD is operating. Compatible with any control system capable of providing a normally closed relay contact when the fan motor is not running, the interface offers flexible integration across a wide range of installations. The Remote version is supplied in a dedicated enclosure for stand\u2011alone mounting, while the Integral version is factory incorporated into the cooling tower control panel assembly.<\/p>\n<p>[\/et_pb_text][et_pb_image src=&#8221;\/wp-content\/uploads\/PIPButton3.png&#8221; alt=&#8221;Proof In Performance&#8221; url=&#8221;http:\/\/proofinperformance.com&#8221; url_new_window=&#8221;on&#8221; align_tablet=&#8221;&#8221; align_phone=&#8221;center&#8221; align_last_edited=&#8221;on|phone&#8221; _builder_version=&#8221;4.16&#8243; width=&#8221;44%&#8221; width_tablet=&#8221;&#8221; width_phone=&#8221;100%&#8221; width_last_edited=&#8221;on|phone&#8221; custom_margin=&#8221;6px|||12px|false|false&#8221; custom_margin_tablet=&#8221;&#8221; custom_margin_phone=&#8221;12px|0px||0px|false|false&#8221; custom_margin_last_edited=&#8221;on|phone&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_2,1_2&#8243; use_custom_gutter=&#8221;on&#8221; gutter_width=&#8221;1&#8243; make_equal=&#8221;on&#8221; _builder_version=&#8221;4.16&#8243; width_tablet=&#8221;&#8221; width_phone=&#8221;90%&#8221; width_last_edited=&#8221;on|phone&#8221; custom_margin=&#8221;5px||0px||false|false&#8221; custom_padding=&#8221;0|0px|0px|0px|false|false&#8221; border_color_all=&#8221;#d6d6d6&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_2&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; border_color_top=&#8221;#8f8f8f&#8221; border_color_bottom=&#8221;#8f8f8f&#8221; border_color_left=&#8221;#8f8f8f&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][\/et_pb_column][et_pb_column type=&#8221;1_2&#8243; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][\/et_pb_column][\/et_pb_row][et_pb_row admin_label=&#8221;Detailed Specs&#8221; _builder_version=&#8221;4.16&#8243; width_tablet=&#8221;&#8221; width_phone=&#8221;98%&#8221; width_last_edited=&#8221;on|phone&#8221; custom_margin=&#8221;20px||||false|false&#8221; custom_padding=&#8221;0px||||false|false&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_tabs active_tab_background_color=&#8221;#424242&#8243; active_tab_text_color=&#8221;#ffffff&#8221; _builder_version=&#8221;4.27.5&#8243; tab_font=&#8221;Teko|||on|||||&#8221; tab_letter_spacing=&#8221;1px&#8221; tab_line_height=&#8221;3em&#8221; background_color=&#8221;#ffffff&#8221; hover_enabled=&#8221;0&#8243; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;][et_pb_tab title=&#8221;Details&#8221; _builder_version=&#8221;4.27.5&#8243; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<p class=\"p1\"><b>Controls Package<\/b><\/p>\n<ul>\n<li class=\"p1\">Remote version comes with factory-assembled enclosure.<\/li>\n<li class=\"p2\">Integral version is installed within tower control panel.<\/li>\n<li class=\"p3\">The interface includes terminal blocks for connection to motor space heaters and the fan motor VFD, along with an status indication lamp.<\/li>\n<\/ul>\n<p class=\"p1\"><b>Application<\/b><b><\/b><\/p>\n<p class=\"p1\"><b><\/b><\/p>\n<ul>\n<li class=\"p2\">There are typically two space heater elements per motor.<\/li>\n<li class=\"p2\">This system can accommodate up to three fan motors that are driven on a common VFD or motor control system.<\/li>\n<li class=\"p3\">System activates when motors are stopped and deactivates when motors operate.<\/li>\n<\/ul>\n<p>[\/et_pb_tab][et_pb_tab title=&#8221;Downloads&#8221; _builder_version=&#8221;4.27.5&#8243; body_font=&#8221;||||||||&#8221; body_font_size=&#8221;16px&#8221; body_line_height=&#8221;1.8em&#8221; tab_font=&#8221;||||||||&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<p><div class=\"post hentry ivycat-post\"><span class=\"pip-not-found\"><\/span><\/div><div class=\"post hentry ivycat-post\"><span class=\"pip-not-found\"><\/span><\/div>\n<!-- NOTE: If you need to make changes to this file, copy it to your current theme's main\n\tdirectory so your changes won't be overwritten when the plugin is upgraded. -->\n\n<!-- Post Wrap Start-->\n<div class=\"post hentry ivycat-post\">\n \n<div class=\"lib_library_thumb\"><a href=\"https:\/\/spxcooling.com\/zh\/library\/fan-motor-space-heater-interface-data-and-specs\/\" target=\"_blank\">\n    \n    <!-- <i class=\"fas fa-file-download fa-3x\"><\/i> -->\n    <img decoding=\"async\" src=\"\/wp-content\/uploads\/10000036417-Fan-Motor-Space-Heater-pdf-image.jpg\" class=\"lib_library_thumbpic\" alt=\"Fan Motor Space Heater Interface Engineering Data and Specifications\"\/>\n   \n    <\/a><\/div>\n  \n\n    <div class=\"lib_library_excerpt\">\n\t<!-- \tThis outputs the post TITLE -->\n\t<span class=\"entry-title-assposts\"><a href=\"https:\/\/spxcooling.com\/zh\/library\/fan-motor-space-heater-interface-data-and-specs\/\" target=\"_blank\">Fan Motor Space Heater Interface Engineering Data and Specifications<\/a><\/span>\n\n\t<!-- \tThis outputs the post EXCERPT.  To display full content including images and html,\n\t\treplace the_excerpt(); with the_content();  below. -->\n\t<div class=\"entry-summary\">\n\t\t\t<\/div>\n\n\t<!--\tThis outputs the post META information -->\n\t<div class=\"entry-utility\">\n\t\t\t\t\t<span class=\"cat-links\">\n\t\t\t\t<span class=\"entry-utility-prep entry-utility-prep-cat-links\">Posted in<\/span> <a href=\"https:\/\/spxcooling.com\/zh\/category\/library\/\" rel=\"category tag\">Library<\/a>, <a href=\"https:\/\/spxcooling.com\/zh\/category\/library\/manual\/\" rel=\"category tag\">Manuals<\/a>\t\t\t<\/span>\n\t\t\t<span class=\"meta-sep\">|<\/span>\n\t\t\t\t\t\t\t<span class=\"tag-links\">\n\t\t\t\t<span class=\"entry-utility-prep entry-utility-prep-tag-links\">Tagged<\/span> <a href=\"https:\/\/spxcooling.com\/zh\/tag\/engineering-data\/\" rel=\"tag\">Engineering Data<\/a>, <a href=\"https:\/\/spxcooling.com\/zh\/tag\/fmsh-interface\/\" rel=\"tag\">fmsh-interface<\/a>\t\t\t<\/span>\n\t\t\t<span class=\"meta-sep\">|<\/span>\n\t\t\n\t\t\t<\/div>\n<\/div>\n      \n    <\/div>\n<div class=\"clear20\"><\/div>\n<!-- \/\/ Post Wrap End -->\n<div class=\"post hentry ivycat-post\"><span class=\"pip-not-found\"><\/span><\/div><div class=\"post hentry ivycat-post\"><span class=\"pip-not-found\"><\/span><\/div><div class=\"post hentry ivycat-post\"><span class=\"pip-not-found\"><\/span><\/div><div class=\"post hentry ivycat-post\"><span class=\"pip-not-found\"><\/span><\/div><\/p>\n<p>[\/et_pb_tab][\/et_pb_tabs][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; 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custom_padding_last_edited=&#8221;on|phone&#8221; admin_label=&#8221;Hero&#8221; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;22px|0px|0px|0px|false|false&#8221; custom_padding_tablet=&#8221;&#8221; custom_padding_phone=&#8221;6px||||false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.16&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; width=&#8221;100%&#8221; custom_margin=&#8221;12px||0px||false|false&#8221; custom_padding=&#8221;12px||8px||false|false&#8221; use_custom_width=&#8221;on&#8221; custom_width_px=&#8221;700px&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.27.5&#8243; text_font=&#8221;Roboto|||on|||||&#8221; text_text_color=&#8221;#0c71c3&#8243; 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It energizes the heaters only when the motors are OFF and ensures they remain OFF while the motors or VFD are running.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/spxcooling.com\/zh\/cooling-tower-parts\/controls\/marley-fan-motor-space-heater-interface\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Marley Fan Motor Space Heater Interface\" \/>\n<meta property=\"og:description\" content=\"The Marley Fan Motor Space Heater Interface connects fan motor space heaters with fan motor control systems including Variable Frequency Drives (VFDs). 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