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ULTRA

™

SERIES 4

HIGH EFFICIENCY CONDENSING BOILER

Water | Natural/Propane Gas | 80-399 MBH

Direct Exhaust/Direct Vent | Average Eciency 94% AFUE

www.weil-mclain.com

HIGH EFFICIENCY

CONDENSING BOILER

The new Ultra Series 4 features a nano-

coated heat exchanger to maximize

eciency and extend longevity.

Summary of content (6 pages)

PAGE 1
ULTRA™ www.weil-mclain.com SERIES 4 HIGH EFFICIENCY CONDENSING BOILER Water | Natural/Propane Gas | 80-399 MBH Direct Exhaust/Direct Vent | Average Efficiency 94% AFUE HIGH EFFICIENCY CONDENSING BOILER The new Ultra Series 4 features a nanocoated heat exchanger to maximize efficiency and extend longevity.
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The new Ultra Series 4 from Weil-McLain takes our line of Ultra high efficiency condensing boilers to a higher level of performance. It features a state-of-the-art heat exchanger with nanotechnology coating that works like “Ultra Armor”, reducing build up in the heat exchanger while maintaining high efficiency. Inspired by nature Clean-free for at least 5 years* Nanotechnology was created to mimic the lotus effect, preventing water condensate build-up.
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1 BENEFITS: ■■ Cast aluminum coated heat exchanger ■■ Up to 94% DOE AFUE efficiency ■■ ■■ Outdoor reset and domestic hot water priority ■■ Modulates with 5:1 turn-down ratio ■■ ■■ Nanotechnology To greatly decrease the possibility of heat exchanger corrosion, Weil-McLain utilizes Nanotechnology, a heat exchanger coating that combines antiadhesive and anticorrosion properties. Nanotechnology protects from corrosion and combustion residue build-up.
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10 6 7 CONNECTIONS/COMPONENTS: 1. 5 A negative regulated gas valve that precisely delivers gas to the boiler for optimal performance. 2. A variable speed motor that constantly matches combustion output to your heating needs. 3. A venturi mixing body that precisely mixes air and gas providing higher efficiency. 4. A cast aluminum mono block heats faster - aluminum provides 10 times better heat transfer than stainless steel. 2 8 5.
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3 1 High Efficiency and Environmentally Friendly How high heating costs fall to Ultra technology As fuel costs soar, home heating efficiency is on the mind of virtually every homeowner. For gas fired appliances, Ultra boilers employ an advanced monolock aluminum heat exchanger that transfers heat faster than conventional materials. All Ultra boilers feature a high AFUE efficiency level.
PAGE 6
DIMENSIONS STANDARD EQUIPMENT: 22⅛"(299/399) BOILER 2213⁄16" 1915⁄16" 18⅝" ■■ 2⅛" 2⅛" ■■ ■■ ■■ 8¾" 2⅜" 67⁄16" 47¾" (299/399) ■■ ■■ ■■ ■■ air inlet 8" 3⁄16" ■■ ■■ ■■ ⅝" LEFT 2⅛" ¾" 1⅛" FRONT MIN MAX 2¼" RIGHT ■■ ■■ ■■ gas connection 173⁄16" 5¼" 8¾" ■■ water supply connection ■■ ■■ ■■ 2⅜" 67⁄16" 311⁄16" ■■ ■■ 8" air inlet vent NT RIGHT DIMENSIONS ■■ TOP ■■ Ultra 80 Ultra 105 Ultra 155 Ultra 230 Ultra 299 Ultra 399 Min.