{"product_id":"schneider-electric-barber-colman-tk-1001","title":"Schneider Electric (Barber Colman) TK-1001 Thermostat","description":"\u003cp\u003eThe \u003cstrong\u003eSchneider Electric (Barber Colman) TK-1001 Pneumatic Room Thermostat\u003c\/strong\u003e is a \u003cstrong\u003edirect-acting, 2-pipe, heating\u003c\/strong\u003e thermostat built for \u003cstrong\u003eproportional control\u003c\/strong\u003e of \u003cstrong\u003epneumatically activated valves, dampers, and similar devices\u003c\/strong\u003e in \u003cstrong\u003eHVAC systems\u003c\/strong\u003e. \u003cstrong\u003eDirect acting\u003c\/strong\u003e means the thermostat \u003cstrong\u003eraises its branch output pressure as room temperature rises\u003c\/strong\u003e, which is how it modulates a heating valve or damper actuator instead of just switching it on and off. The dial covers \u003cstrong\u003e55°F to 85°F\u003c\/strong\u003e, the unit leaves the factory at a \u003cstrong\u003e75°F setpoint\u003c\/strong\u003e, and it runs on a \u003cstrong\u003e15 or 20 psig\u003c\/strong\u003e main air supply connected with \u003cstrong\u003e5\/32\" plastic tubing\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eThe part that separates a well-behaved pneumatic zone from one that hunts is the \u003cstrong\u003ethrottling range\u003c\/strong\u003e. The \u003cstrong\u003eTK-1001\u003c\/strong\u003e ships with a \u003cstrong\u003e4°F per 10 psi\u003c\/strong\u003e throttling range and adjusts from \u003cstrong\u003e2°F to 10°F per 10 psi\u003c\/strong\u003e: tighten it for a small, responsive zone, or open it up on a large space that reacts slowly. Calibration is straightforward — with the setpoint matched to room temperature the \u003cstrong\u003ebranch line\u003c\/strong\u003e should sit at a nominal \u003cstrong\u003e8 psig\u003c\/strong\u003e, within a \u003cstrong\u003e±1 psi\u003c\/strong\u003e tolerance. Air consumption is a low \u003cstrong\u003e0.008 scim\u003c\/strong\u003e with a \u003cstrong\u003e16 scim\u003c\/strong\u003e capacity, and the supply and branch connections are coded \u003cstrong\u003eM\u003c\/strong\u003e (main) and \u003cstrong\u003eB\u003c\/strong\u003e (branch) so the tubing goes on the right way the first time.\u003c\/p\u003e\n\n\u003cp\u003eMounting uses either an \u003cstrong\u003eexternal wall fitting\u003c\/strong\u003e (ordered separately) or a standard \u003cstrong\u003eelectrical switch box\u003c\/strong\u003e with the supplied \u003cstrong\u003emounting plate\u003c\/strong\u003e and \u003cstrong\u003eAllen-head screws\u003c\/strong\u003e. If your old thermostat is stamped \u003cstrong\u003eTK-1001-0-2\u003c\/strong\u003e, \u003cstrong\u003eTK-1001-105\u003c\/strong\u003e, \u003cstrong\u003eTK-1001-119\u003c\/strong\u003e, \u003cstrong\u003eTK-1001-139\u003c\/strong\u003e, \u003cstrong\u003eTK-1001-398\u003c\/strong\u003e, \u003cstrong\u003eTK-1001-399\u003c\/strong\u003e, \u003cstrong\u003eTK-1001-400\u003c\/strong\u003e, \u003cstrong\u003eTK-1001-403\u003c\/strong\u003e or \u003cstrong\u003eTK-1001-404\u003c\/strong\u003e, \u003cstrong\u003eTK-1001\u003c\/strong\u003e is the current number for it. Two neighbors are different thermostats: \u003cstrong\u003eTK-1001-116\u003c\/strong\u003e (\u003cstrong\u003e13°C to 29°C\u003c\/strong\u003e dial) and \u003cstrong\u003eTK-1001-600\u003c\/strong\u003e (aspirated). The cooling counterpart is the \u003cstrong\u003ereverse-acting TK-1101\u003c\/strong\u003e, so confirm the action before you swap one for the other.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDirect-Acting Heating Control:\u003c\/strong\u003e Output pressure rises with room temperature, matched to the \u003cstrong\u003e2-pipe heating\u003c\/strong\u003e applications this model is made for.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAdjustable Throttling Range:\u003c\/strong\u003e Dial from \u003cstrong\u003e2°F to 10°F per 10 psi\u003c\/strong\u003e to stop hunting in a tight zone or smooth out a slow one.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eStandard Pneumatic Hookup:\u003c\/strong\u003e \u003cstrong\u003e15 or 20 psig\u003c\/strong\u003e supply and \u003cstrong\u003e5\/32\"\u003c\/strong\u003e plastic tubing, with \u003cstrong\u003eM\u003c\/strong\u003e and \u003cstrong\u003eB\u003c\/strong\u003e connections coded for a clean install on existing lines.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLow Air Consumption:\u003c\/strong\u003e Just \u003cstrong\u003e0.008 scim\u003c\/strong\u003e consumption keeps load off the compressor and drier on an aging pneumatic system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWhich old numbers does this replace?\u003c\/strong\u003e \u003cstrong\u003eTK-1001-0-2\u003c\/strong\u003e, \u003cstrong\u003eTK-1001-105\u003c\/strong\u003e, \u003cstrong\u003eTK-1001-119\u003c\/strong\u003e, \u003cstrong\u003eTK-1001-139\u003c\/strong\u003e, \u003cstrong\u003eTK-1001-398\u003c\/strong\u003e, \u003cstrong\u003eTK-1001-399\u003c\/strong\u003e, \u003cstrong\u003eTK-1001-400\u003c\/strong\u003e, \u003cstrong\u003eTK-1001-403\u003c\/strong\u003e and \u003cstrong\u003eTK-1001-404\u003c\/strong\u003e all cross-reference to \u003cstrong\u003eTK-1001\u003c\/strong\u003e.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWhat branch pressure should I see after installing it?\u003c\/strong\u003e With the \u003cstrong\u003esetpoint\u003c\/strong\u003e equal to room temperature, expect a nominal \u003cstrong\u003e8 psig\u003c\/strong\u003e on the \u003cstrong\u003ebranch line\u003c\/strong\u003e (\u003cstrong\u003e8 ±1 psi\u003c\/strong\u003e), measured with \u003cstrong\u003e15 or 20 psig\u003c\/strong\u003e main air.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDoes direct acting mean it is for cooling?\u003c\/strong\u003e No. \u003cstrong\u003eDirect acting\u003c\/strong\u003e describes how branch pressure moves with temperature. The \u003cstrong\u003eTK-1001\u003c\/strong\u003e is the \u003cstrong\u003eheating, 2-pipe\u003c\/strong\u003e version; the \u003cstrong\u003eTK-1101\u003c\/strong\u003e is the \u003cstrong\u003ereverse-acting, cooling\u003c\/strong\u003e counterpart.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eDisclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.\u003c\/p\u003e","brand":"Schneider Electric (Barber Colman)","offers":[{"title":"Default Title","offer_id":67637726249138,"sku":"TK-1001","price":436.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/files\/TK-1001.jpg?v=1791226933","url":"https:\/\/www.gsistore.com\/en-ca\/products\/schneider-electric-barber-colman-tk-1001","provider":"GSIstore","version":"1.0","type":"link"}