{"product_id":"honeywell-r7910b1040-sola-hydronic-control-circuit-board-module","title":"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• Hydronic boiler control for heat, flame supervision, pump and fan control\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e• Supports multiple sensor inputs: outlet, DHW, stack, inlet, and outdoor temperatures with 10kΩ NTC sensors   • Integrated primary control with internal or external spark generator   • Features include PID load control, burner demand, pre-ignition interlock, and firing rate limiting   • Three status LEDs for Power, Flame, and Alarm indication   • Outputs support analog signals (0-10 VDC, 4-20 mA) and PWM for variable frequency drives   • Digital inputs and outputs with programmable interlocks and controls   • Energy-saving capabilities: setback\/time of day, outdoor reset, fan and burner modulation   • Compliance: UL recognized component, suitable for NEMA 1\/IP40 enclosure   • Compatible with S7999B touchscreen display module for configuration (optional)   • Operating voltage: 24 VAC   • Flame sensing via flame rod with internal spark ignition system   • Boiler delta-T, stack temperature limit, DHW limit, outlet temperature rise limit controls included   • Compact and integrated design reduces installation and maintenance complexity\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":43673067356269,"sku":"13909","price":390.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/2419\/1853\/files\/s-l800_910cbe96-3298-4153-91a2-e2a6c23390f5.jpg?v=1763347145","url":"https:\/\/willardshvacsupply.com\/products\/honeywell-r7910b1040-sola-hydronic-control-circuit-board-module","provider":"Willard's HVAC Supply","version":"1.0","type":"link"}