{"product_id":"aerotherme-a-eau-chaude-sterling-hsb24011-montreal-laval-longueuil-rive-sud-rive-nord","title":"STERLING HSB24011 Hot-Water Unit Heater | Montreal, Laval, Longueuil, South Shore \u0026 North Shore","description":"\u003ch2\u003eA large unit heater whose loop is designed along with the unit\u003c\/h2\u003e\n\u003ch3\u003eThe HSB24011 in published figures\u003c\/h3\u003e\n\u003cp\u003eThe Sterling HSB24011 is a horizontal hot-water unit heater from the HS series. Hung from the ceiling, it blows 3,500 CFM of warmed air, at 900 FPM at the outlet, through horizontal louvers that come standard. Sterling rates it at 174,000 BTU\/h with 200°F entering water, 60°F entering air and a 20°F drop. Its single-speed 1\/3 HP motor connects on 115 V, single phase, 60 Hz.\u003c\/p\u003e\n\u003cp\u003eThis size targets distribution centres, heavy machinery maintenance shops and storage hangars, in buildings equipped with a good-sized electric boiler.\u003c\/p\u003e\n\u003ch3\u003eDesigning the loop: flow, pressure drop and balancing\u003c\/h3\u003e\n\u003cp\u003eAt this size, the unit is no longer chosen on its own. It needs 17.4 GPM with a 20°F drop, and its coil’s pressure drop reaches 1.06 ft H2O. The circulator must supply that flow on top of the other circuits; depending on the case, we keep the existing circulator or propose a dedicated one.\u003c\/p\u003e\n\u003cp\u003eIf the building receives several unit heaters, the loop must be designed for all the flows, with balancing valves so that each unit gets its share. We draw that layout before the quote, and the electric boiler must have capacity to spare for the whole system, at the chosen temperature.\u003c\/p\u003e\n\u003ch3\u003eWater temperature and loop fluid\u003c\/h3\u003e\n\u003cp\u003eThe 174,000 BTU\/h rating applies to 200°F water. Below that, Sterling publishes the factors to apply: 0.857 at 180°F, 0.715 at 160°F, 0.571 at 140°F, 0.429 at 120°F and 0.286 at 100°F. With an air-to-water heat pump, a larger size or an extra unit may be needed; we present the options, with the calculation to back them.\u003c\/p\u003e\n\u003cp\u003eIn a hangar that can freeze, the loop can contain propylene glycol, for which Sterling publishes correction factors. The coil is rated up to 150 PSI (1,034 kPa) or 320°F (160°C) on hot water and factory tested at 200 psig (1,379 kPa) under water.\u003c\/p\u003e\n\u003ch3\u003eWhat our installation covers\u003c\/h3\u003e\n\u003cp\u003eWe confirm the weight, dimensions and connections with Sterling, then check the structure that will carry the unit. Our technicians hang it by rods, level, connect it to the loop with isolation valves, balancing valves as needed and air purging, make the 115 V electrical connection and the control, then start it up and measure the flows.\u003c\/p\u003e\n\u003cp\u003eAirGreen is a family business established in \u003cstrong\u003eMontreal\u003c\/strong\u003e for more than fifteen years, holding RBQ licence 5645-9605-01 (ventilation, refrigeration and electrical). We serve \u003cstrong\u003eMontreal\u003c\/strong\u003e, \u003cstrong\u003eLaval\u003c\/strong\u003e, \u003cstrong\u003eLongueuil\u003c\/strong\u003e, the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e and the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAsk for a free on-site estimate: your written quote covers the unit, the loop and the circulator, and \u003ca href=\"\/en\/pages\/financement-avec-financeit\"\u003efinancing\u003c\/a\u003e is available.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Sterling","offers":[{"title":"Default Title","offer_id":67801679036708,"sku":"HSB24011","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/AEROTHERME_A_EAU_CHAUDE_STERLING_HSB_24011_00_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1793082220","url":"https:\/\/airgreen.ca\/en\/products\/aerotherme-a-eau-chaude-sterling-hsb24011-montreal-laval-longueuil-rive-sud-rive-nord","provider":"AirGreen Climatisation \u0026 Chauffage \/ Air Conditioning \u0026 Heating","version":"1.0","type":"link"}