{"title":"Patterson-Kelley","description":"\u003cp\u003e\u003cspan\u003eBrowse our complete inventory of genuine Patterson-Kelley commercial boilers and high-efficiency water heating systems. Engineered for industrial, institutional, and large-scale commercial applications, PK boilers deliver unmatched thermal efficiency, rugged durability, and advanced control integration. Find the exact commercial heating equipment and replacement parts your facility requires.\u003c\/span\u003e\u003c\/p\u003e","products":[{"product_id":"pk-2650000201","title":"Patterson-Kelley MACH Boiler ENVI Control Board - 2650000201","description":"\u003cdiv class=\"product-description-wrapper\" style=\"font-family: sans-serif; line-height: 1.6; color: #333; margin-bottom: 25px;\"\u003e\n  \u003cp style=\"margin-bottom: 16px;\"\u003e\n    The Patterson-Kelley 2650000201 is a genuine OEM ENVI® advanced main control micro-processing board engineered specifically for the P-K MACH® commercial condensing boiler series. Functioning as the intelligent control hub, this board provides complete point-of-source monitoring, safety limit tracking, and firing-rate modulation without requiring expensive external secondary control panels.\n  \u003c\/p\u003e\n\n  \u003cp style=\"margin-bottom: 12px;\"\u003e\u003cstrong style=\"font-size: 15px; color: #111;\"\u003eAdvanced Processing \u0026amp; Multi-Boiler Network Integration:\u003c\/strong\u003e\u003c\/p\u003e\n  \n  \u003cul style=\"margin-top: 0; margin-bottom: 20px; padding-left: 20px;\"\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n      \u003cstrong\u003ePrecision Combustion Modulation:\u003c\/strong\u003e Dynamically interprets real-time data from internal supply, return, and outdoor reset sensors to continuously adjust gas valve delivery and variable-speed blower curves for maximum thermal efficiency.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n      \u003cstrong\u003eBuilt-In Cascade Sequencing:\u003c\/strong\u003e Features native lead\/lag network software capable of sequencing and interlocking up to 16 boilers in a single master\/member grid, distributing run-time hours evenly to protect the lifespan of individual heat engines.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n      \u003cstrong\u003eSmart Diagnostics \u0026amp; Building Automation Compatibility:\u003c\/strong\u003e Equips technicians with plain-English text fault readouts for quick field troubleshooting, while supporting seamless remote integration via Modbus® RS-485 protocols or standard 0-10VDC analog signaling inputs.\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp style=\"margin-top: 16px; margin-bottom: 0;\"\u003e\n    \u003cstrong\u003eInstallation Requirement:\u003c\/strong\u003e To prevent static damage to sensitive microchips, this logic board must be installed using proper ESD (Electrostatic Discharge) grounding straps. Field configuration and firmware profiling must comply with Patterson-Kelley equipment manuals.\n  \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Patterson-Kelley","offers":[{"title":"Default Title","offer_id":42910019289182,"sku":"2650000201","price":1150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/A_clear_close-up_studio_presentation_of_the_Patterson-Kelley_ENVI_Boiler_Control_system_interface_panel_showing_its_signature_square_gray_bezel_frame_built-in_digital_text_status_screen_window_and_operational_indicator_buttons_on_a_clean_whi.png?v=1782138025"},{"product_id":"pk-2600000344","title":"Patterson-Kelley MACH 1.5-2.0M BTU Annual Maintenance Kit - BP-0000-0344","description":"\u003cdiv class=\"product-description-wrapper\" style=\"font-family: sans-serif; line-height: 1.6; color: #333; margin-bottom: 25px;\"\u003e\n  \u003cp style=\"margin-bottom: 16px;\"\u003e\n    The Patterson-Kelley 2600000344 OEM replacement spark igniter is engineered specifically to meet the high-vibration and intense thermal parameters of Patterson-Kelley MACH® commercial condensing boilers. Delivering a reliable, high-voltage electrical arc directly into the optimized air-fuel mixture stream, this industrial-grade ignition electrode ensures clean, precise flame initiation across large-scale heating footprints.\n  \u003c\/p\u003e\n\n  \u003cp style=\"margin-bottom: 12px;\"\u003e\u003cstrong style=\"font-size: 15px; color: #111;\"\u003eAdvanced OEM Engineering \u0026amp; Functional Perks:\u003c\/strong\u003e\u003c\/p\u003e\n  \n  \u003cul style=\"margin-top: 0; margin-bottom: 20px; padding-left: 20px;\"\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n      \u003cstrong\u003eHigh-Dielectric Ceramic Insulation:\u003c\/strong\u003e Wrapped in a premium, glazed ceramic composite jacket designed to resist cracking under intense cycling. This prevents electrical current leakage or high-voltage tracking to the grounded burner housing, ensuring the spark jumps only at the gap tip.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n      \u003cstrong\u003eHeavy-Duty Heat Alloy Core:\u003c\/strong\u003e The metal firing electrode rod is constructed from high-temperature stainless steel and kanthal alloys, ensuring long-term resistance to oxidization, erosion, and warping from direct flame exposure.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n      \u003cstrong\u003eMaintains Low-NOx Compliance:\u003c\/strong\u003e Replacing worn igniters eliminates weak sparks that cause unstable combustion. Pristine ignition timing is required to maintain the ultra-precise air-fuel ratios needed for eco-friendly, low-NOx operational profiles.\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp style=\"margin-top: 16px; margin-bottom: 0;\"\u003e\n    \u003cstrong\u003eTechnician Fit-up Warning:\u003c\/strong\u003e Specifically calibrated for Patterson-Kelley MACH® aluminum commercial models with 1,500,000 to 2,000,000 BTU capacities. Always handle with clean hands to prevent skin oil contamination on the ceramic housing, which can cause grounding faults.\n  \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Patterson-Kelley","offers":[{"title":"Default Title","offer_id":42910019420254,"sku":"2600000344","price":612.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/Studio_product_profile_of_a_Patterson-Kelley_2600000344_spark_igniter_assembly_displaying_its_elongated_white_glazed_ceramic_insulation_body_dual_angled_metal_electrode_firing_rods_and_a_specialized_integrated_flat_metal_mounting_bracket_flan.jpg?v=1782135746"},{"product_id":"pk-2550000112","title":"Patterson-Kelley Commercial Gas Valve 2\"\" - 2550000112","description":"\u003cdiv class=\"product-description-wrapper\" style=\"font-family: sans-serif; line-height: 1.6; color: #333; margin-bottom: 25px;\"\u003e\n  \u003cp style=\"margin-bottom: 16px;\"\u003e\n    The Patterson-Kelley 2550000112 is an authentic OEM replacement 2-inch commercial modulating gas safety shutoff valve. Precision-engineered to handle high-capacity gas train distribution loops, this heavy-duty valve integrates seamlessly with the microprocessor controls and variable speed combustion blowers found on larger industrial heating equipment.\n  \u003c\/p\u003e\n\n  \u003cp style=\"margin-bottom: 12px;\"\u003e\u003cstrong style=\"font-size: 15px; color: #111;\"\u003eIndustrial-Grade Design \u0026amp; Performance Safety Features:\u003c\/strong\u003e\u003c\/p\u003e\n  \n  \u003cul style=\"margin-top: 0; margin-bottom: 20px; padding-left: 20px;\"\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n      \u003cstrong\u003eHigh-Precision Combustion Modulation:\u003c\/strong\u003e Engineered to dynamically regulate fuel flow rates in lockstep with fan speeds, allowing the system to achieve clean, optimized mechanical turndown ratios without flame lifting or nuisance flame failures.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n      \u003cstrong\u003eDual-Safety Shutoff Security:\u003c\/strong\u003e Features dual fast-closing internal safety valves to block high-pressure gas streams completely within milliseconds of a system fault, flame loss, or power interruption, ensuring strict adherence to commercial safety standards.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n      \u003cstrong\u003eRugged Commercial Construction:\u003c\/strong\u003e The heavy-wall 2\" casting features precision-machined threads designed to maintain an absolute airtight seal under constant pressure fluctuations, resisting vibration-induced stress inside busy mechanical rooms.\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp style=\"margin-top: 16px; margin-bottom: 0;\"\u003e\n    \u003cstrong\u003eSafety Compliance Warning:\u003c\/strong\u003e Due to the high-capacity flow potential of this component, installation, field tuning, and combustion gas testing must be performed exclusively by a licensed commercial heating technician. Always use approved pipe compound resistant to the actions of liquefied petroleum and natural gases.\n  \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Patterson-Kelley","offers":[{"title":"Default Title","offer_id":42910019551326,"sku":"2550000112","price":985.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/An_isolated_professional_product_studio_shot_of_an_industrial_Dungs_safety_shutoff_gas_valve_assembly_showing_its_precision-machined_2-inch_threaded_inlet_port_a_heavy-wall_silver_die-cast_aluminum_modular_valve_body_and_a_top-mounted_black.png?v=1782137738"},{"product_id":"pk-2650000189","title":"Patterson-Kelley High Limit Temperature Switch - 2650000189","description":"\u003cdiv class=\"product-description-wrapper\" style=\"font-family: sans-serif; line-height: 1.6; color: #333; margin-bottom: 25px;\"\u003e\n  \u003cp style=\"margin-bottom: 16px;\"\u003e\n    The Patterson-Kelley 2650000189 High Limit Temperature Switch is an essential safety control mechanism engineered for heavy-duty commercial and industrial boilers. Functioning as a fail-safe defensive sentinel, this switch continuously monitors internal heat engine and water-jacket temperatures. If the system experiences a primary thermostat failure or runaway thermal climb that exceeds pre-calibrated factory safety parameters, this device instantly breaks the electrical control loop to safely shut down combustion before equipment damage or excessive system pressures occur.\n  \u003c\/p\u003e\n\n  \u003cp style=\"margin-bottom: 12px;\"\u003e\u003cstrong style=\"font-size: 15px; color: #111;\"\u003eAdvanced Safety \u0026amp; Mechanical Safeguards:\u003c\/strong\u003e\u003c\/p\u003e\n  \n  \u003cul style=\"margin-top: 0; margin-bottom: 20px; padding-left: 20px;\"\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n      \u003cstrong\u003eStrict Manual Reset Safety Logic:\u003c\/strong\u003e Features a positive mechanical manual reset button. Following a high-temperature safety trip, the switch locks out permanently and cannot be bypassed by cycling the power, forcing a licensed HVAC technician to inspect and resolve the root heating failure.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n      \u003cstrong\u003ePremium Capillary Thermal Sensing:\u003c\/strong\u003e Utilizing a rugged liquid-filled sensing bulb and a flexible armored capillary tube, it responds rapidly to sharp fluid temperature spikes, ensuring accurate thermal tracking without micro-amp signaling lag.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n      \u003cstrong\u003eDirect OEM Factory Integration:\u003c\/strong\u003e Specifically designed to align with Patterson-Kelley's strict safety standards, keeping commercial boilers compliant with ASME CSD-1 code requirements.\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp style=\"margin-top: 16px; margin-bottom: 0;\"\u003e\n    \u003cstrong\u003eSystem Application Note:\u003c\/strong\u003e Universally compatible across select high-efficiency condensing and non-condensing commercial boiler architectures, including premium P-K MACH®, SONIC®, and STORM® configurations. \n  \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Patterson-Kelley","offers":[{"title":"Default Title","offer_id":42910019649630,"sku":"2650000189","price":184.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/Studio_product_shot_of_a_Patterson-Kelley_2650000189_commercial_boiler_high_limit_temperature_switch_displaying_its_gray_protective_control_casing_prominent_red_manual_reset_button_coiled_copper_capillary_line_and_immersion_sensing_probe_on.png?v=1782133617"}],"url":"https:\/\/nationalboilersupply.com\/collections\/patterson-kelley.oembed","provider":"National Boiler Supply","version":"1.0","type":"link"}