{"product_id":"armstrong-110123-120-astro-1-2-aquastat","title":"Armstrong 110123-120 Astro 1\/2\" Aquastat","description":"\u003cp\u003eThe Armstrong Astro aquastat delivers precise temperature control for hydronic heating and boiler applications, ensuring consistent comfort and energy savings. This **110123-120** unit features a 1\/2\" connection size and integrates seamlessly into Armstrong Astro system configurations.\u003c\/p\u003e\u003cp\u003eDesigned with a dual‑stage control circuit, the aquastat monitors water temperature and activates heating elements or circulators at programmed set points. Its built‑in high‑limit safety shut‑off protects equipment from overheating, while adjustable low‑limit settings prevent short‑cycling.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetpoint Accuracy:\u003c\/strong\u003e Maintains temperature within ±1°F of the programmed value.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResponse Time:\u003c\/strong\u003e Engages heating elements within 5 seconds of reaching the low‑limit threshold.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Shut‑off:\u003c\/strong\u003e Automatically de‑energizes the system at the high‑limit to prevent damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Range:\u003c\/strong\u003e Low‑limit 120°F‑180°F, High‑limit 190°F‑210°F for versatile applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for residential boilers, water‑to‑air heat pumps, indirect water heaters, and any hydronic system requiring reliable temperature regulation.\u003c\/p\u003e","brand":"Armstrong","offers":[{"title":"Default Title","offer_id":43123790970974,"sku":"110123-120","price":74.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/110123_120_image_f9a92299-8a99-4a20-93d5-fd920a99e1c1.png?v=1786018794","url":"https:\/\/nationalboilersupply.com\/products\/armstrong-110123-120-astro-1-2-aquastat","provider":"National Boiler Supply","version":"1.0","type":"link"}