{"product_id":"resideo-honeywell-r7910b1040-sola-hydronic-control-circuit-board-module","title":"Resideo Honeywell R7910B1040 Sola Hydronic Control Circuit Board Module","description":"\u003cp\u003e\u003cstrong\u003e\u003cem\u003eThis product may contain shelf wear, have minor cosmetic imperfections, or have been tested. All our certified pre-owned products are backed by our return policy. We offer free shipping on all items. Please contact us for discounts or if you have any questions. We look forward to doing business with you!\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e• 24 VAC operating voltage with 120 VAC load voltage capability\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e• 0-10 VDC, 4-20 mA, and PWM modulation outputs • FR\/UV flame sensor type with low and high fire switches • Two temperature control loops for central heating (CH) and domestic hot water (DHW) • PID load control with algorithm prioritization • Internal or external spark generator support • NTC analog temperature sensor inputs (10kΩ or 12kΩ at 77°F) • Multiple safety and operational features: anti-condensate, stack limit, boiler delta-T, boiler slow start, outlet limit, and on\/off hysteresis • Digital inputs and outputs with programmable interlock functions • Three status LEDs for power, flame, and alarm indication • Supports circulating pump control with PWM-driven options for optimal energy consumption • Gas valve and fan modulation control capability • Flame signal test jacks for diagnostics • Fifteen item alert code status and fault code history with equipment status reporting • NEMA 1 IP40 rating • Operating temperature range: -4 to 150°F (-20 to 66°C) • UL and cUL component recognized certification (File Number MP268) • Compatible with S7999B touchscreen display for setup and ModBus communication\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":43673105629293,"sku":"14084","price":390.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/2419\/1853\/files\/s-l800_15f70805-5b9a-497b-a52a-ab0ac5c2c10b.jpg?v=1763347749","url":"https:\/\/willardshvacsupply.com\/products\/resideo-honeywell-r7910b1040-sola-hydronic-control-circuit-board-module","provider":"Willard's HVAC Supply","version":"1.0","type":"link"}