{"product_id":"honeywell-aq25a44b-programmable-relay-boiler-control-panel-for-4-zones-of-valves-with-end-switches","title":"Honeywell AQ25A44B programmable relay boiler control panel for 4 zones of valves with end switches","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe Honeywell AQ25A44B is a programmable relay boiler control panel designed for sign-temperature residential hydronic heating systems, providing simplified, energy-efficient control. It manages low voltage control modules, zone thermostats, and zone valves with end switches, handling line voltage outputs for boiler pumps, domestic hot water (DHW) pumps, and auxiliary functions. This control panel supports up to four zones, expandable to 64 zones with additional panels, and includes an integral 38 VA transformer.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDisplays outdoor temperature on all Aq1000 series thermostats when used with an aq12c10 outdoor sensor.\u003c\/li\u003e\n  \u003cli\u003eIntuitive and accessible programming interface for zone set points and setback programming.\u003c\/li\u003e\n  \u003cli\u003eZoning control for up to four zones, expandable to 64 zones with additional panels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Highlights\u003c\/h4\u003e\n\u003cp\u003eThis programmable boiler control panel offers comprehensive management for hydronic heating systems, featuring multi-zone control, customizable settings, and domestic hot water priority.\u003c\/p\u003e\n\u003ch3\u003eProduct Information\u003c\/h3\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HONEYWELL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: AQ25A44B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e: United States\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer\u003c\/strong\u003e: Honeywell\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: Honeywell\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: CONTROLLER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMPN\u003c\/strong\u003e: AQ25A44B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoiler High Limit\u003c\/strong\u003e: Range: 120°F to 225°F (49°C to 107°C), Factory Default: 190°F (88°C)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoiler Low Limit\u003c\/strong\u003e: Range: 60°F to 180°F (15°C to 82°C), Factory Default: 150°F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoiler Differential\u003c\/strong\u003e: Range: 2°F to 41°F (1°C to 23°C) \/ AUTO, Factory Default: AUTO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarm Weather Shut Down\u003c\/strong\u003e: Range: 35°F to 100°F (2°C to 38°C), Factory Default: 70°F (21°C)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Return Temperature\u003c\/strong\u003e: Range: – – \/ 80°F to 180°F (27°C to 82°C), Factory Default: 140°F (60°C)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoiler Cycles Per Hour\u003c\/strong\u003e: Range: 2 to 6, Factory Default: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoiler Fire Delay\u003c\/strong\u003e: Range: 0 seconds to 3 minutes (in 5 second increments), Factory Default: 10 seconds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoiler Purge Time\u003c\/strong\u003e: Range: OFF, 10 seconds to 30 minutes (in 10 second increments), Factory Default: 30 seconds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoiler Exercise\u003c\/strong\u003e: Range: YES \/ NO, Factory Default: YES\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoiler Freeze Protection\u003c\/strong\u003e: Range: YES \/ NO, Factory Default: YES\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoiler 10V Modulation Select\u003c\/strong\u003e: Range: 0-10V \/ 2-10V, Factory Default: 0-10V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoiler Usage\u003c\/strong\u003e: Range: NONE \/ BOILER, Factory Default: NONE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDHW Enable\/Disable\u003c\/strong\u003e: Range: ENABLE \/ DISABLE, Factory Default: ENABLE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDHW Priority\u003c\/strong\u003e: Range: YES \/ NO, Factory Default: NO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDHW Priority Override\u003c\/strong\u003e: Range: YES \/ NO, Factory Default: YES\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDHW Device\u003c\/strong\u003e: Range: PUMP \/ VALVE, Factory Default: PUMP\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDHW Valve Open Time\u003c\/strong\u003e: Range: 0 – 230 seconds (in 5 second increments), Factory Default: 15 seconds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDHW Purge\u003c\/strong\u003e: Range: YES \/ NO, Factory Default: YES\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDHW Sensor\u003c\/strong\u003e: Range: YES \/ NO, Factory Default: NO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDHW Setpoint\u003c\/strong\u003e: Range: 60°F to 160°F (16°C to 71°C), Factory Default: 140°F (60°C)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDHW Differential\u003c\/strong\u003e: Range: 5°F to 40°F (2.5°C to 22°C), Factory Default: 20°F (-7°C)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDHW Vacancy\u003c\/strong\u003e: Range: [41°F + DHW DIFF] to 160°F ([5°C + DHW DIFF] to 71°C), Factory Default: 45°F (7°C)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZoning Heat Demand Priority\u003c\/strong\u003e: Range: YES \/ NO, Factory Default: NO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZoning Priority Override\u003c\/strong\u003e: Range: YES \/ NO, Factory Default: NO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZoning Valves Time To Open\u003c\/strong\u003e: Range: 5 – 230 seconds, Factory Default: 15 seconds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuxiliary Input (optional)\u003c\/strong\u003e: Range: SETBACK \/ VACANCY \/ EM. SHUT \/ NONE, Factory Default: SETBACK\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuxiliary Output (optional)\u003c\/strong\u003e: Range: BOILER \/ SETBACK \/ ZONE OP. \/ ALARM \/ AUX.IN \/ DHW IN \/ HEAT IN \/ HT DMND \/ COOL \/ NONE, Factory Default: BOILER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuxiliary Pump (optional)\u003c\/strong\u003e: Range: BOILER \/ GROUP \/ OCC \/ BYPASS \/ FAN \/ NONE \/ AUX.IN \/ DHW IN \/ HEAT IN \/ HT DMND, Factory Default: BOILER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA\/C Cycles Per Hour\u003c\/strong\u003e: Range: 2 \/ 3 \/ 4 \/ 5 \/ 6, Factory Default: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA\/C Minimum Off Time\u003c\/strong\u003e: Range: 2 to 10 minutes, Factory Default: 5M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA\/C Cool Weather Shut Down\u003c\/strong\u003e: Range: 32°F to 100°F (0°C to 38°C), Factory Default: 65°F (18°C)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA\/C Fan Mode\u003c\/strong\u003e: Range: AUTO \/ ON, Factory Default: AUTO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA\/C Equipment Configuration\u003c\/strong\u003e: Range: A-1 to D-16, Factory Default: A-1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA\/C Unit\u003c\/strong\u003e: Range: NONE \/ 1, Factory Default: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA\/C Cooling\u003c\/strong\u003e: Range: ENABLE \/ DISABLE, Factory Default: ENABLE\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"HONEYWELL","offers":[{"title":"Default Title","offer_id":51346921390386,"sku":"AQ25A44B","price":208.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310441119.jpg?v=1782094648","url":"https:\/\/voomisupply.com\/products\/honeywell-aq25a44b-programmable-relay-boiler-control-panel-for-4-zones-of-valves-with-end-switches","provider":"Voomi Supply","version":"1.0","type":"link"}