{"product_id":"clevland-controls-ps221-afs222121-general-purpose-air-switch-html","title":"Clevland Controls PS221 AFS222121 General Purpose Air Switch","description":"\u003cp\u003e\u003cspan style=\"font-size: large;\"\u003eSupco AFS222121 General Purpose Air Switch\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: large;\"\u003eFeatures \/ Benefits\u003c\/span\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003e Senses positive, negative or differential air pressure.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003e Set Point Range: 0.05\" to 12.0\" w.c.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003e Electrical Ratings: 300 VA pilot duty @115 to 277 VAC, 15 amp non- inductive to 277 VAC, 60 Hz.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003e Contact Arrangement: SPDT\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003e Operating Temperature: -40°F (-40°C) to 180°F (82°C).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003e UL \u0026amp; CSA Approved.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003e 2-year warranty\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cspan style=\"font-size: large;\"\u003eCommon HVAC\u0026amp;R Applications\u003c\/span\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003e On gas fired warm air furnaces, prove fan flow by sensing draft down from blower; switch actuation allows ignition start up or shuts system down upon insufficient draft.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003e Electronic air cleaners and humidifiers can employ sensing switches to prove airflow; switch actuation starts unit with sufficient airflow or draft.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003e Strip heaters employ airflow sensing switches to prove positive pressure\/airflow in duct and air movement across heat source; shuts off heat source with insufficient airflow.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003e Exhaust fans and draft hoods employ sensing switches to sense draft down from exhaust fan; switch actuation signals condition upon fan failure or insufficient draft.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003e Refrigeration and cooling coils are maintained by sensing differential pressure\/airflow drop across coils; switch actuation signals condition when they ice, or actuates the defrost cycle.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diversitech","offers":[{"title":"Default Title","offer_id":41471821480010,"sku":"SUPC20","price":41.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0571\/3549\/7290\/files\/SUPC20__65297.1597911688.1280.1280.jpg?v=1720529389","url":"https:\/\/c38b33-2.myshopify.com\/products\/clevland-controls-ps221-afs222121-general-purpose-air-switch-html","provider":"Climatedoctors","version":"1.0","type":"link"}