RCW399AN RCW Model Series

The RCW•SERIES™ water heater offers a complete line of condensing, gas-fired Floor-Standing Volume Water Heaters that act as a primary water heat source in any size commercial application

  • 39,900 BU (minimum)
    399,000 BU (maximum)
  • Warranty
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The RCW•SERIES™ water heater offers a complete line of condensing, gas-fired Floor-Standing Volume Water Heaters that act as a primary water heat source in any size commercial application

Supply Connections

Connection Connection Size
Gas 1" MNPT [25 MM]
Cold Inlet 1-1/4" MNPT [32 MM]
Hot Outlet 1-1/4" MNPT [32 MM]
Condensate Drain 1" MNPT [25 MM] (3/4" PVC)
Product Depth 21.3 in / (541 mm)
Product Height 33.1 in / (841 mm)
Product Width 19.4 in / (493 mm)
Product Weight 183 lbs

Warranty information is available in the Installation & Owner Manual.

Browse product manuals, spec sheets, and other documentation below.

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100001029 Rinnai Commercial Water Heater Installation and Operation Manual-English
PDF 21 MB
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100001030 Rinnai Commercial Water Heater Installation and Operation Manual-French
PDF 15 MB
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100001031 Rinnai Commercial Water Heater Installation and Operation Manual-Spanish
PDF 16 MB
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100001088 Rinnai Commercial Water Heater User Manual-English
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100001090 Rinnai Commercial Water Heater User Manual-French
PDF 5 MB
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100001091 Rinnai Commercial Water Heater User Manual-Spanish
PDF 6 MB
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Canada.RCW•SERIES Brochure
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FRENCH RCW•SERIES Brochure
PDF 4 MB
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RCW brochure
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100001038(00B) Rinnai Commercial Water Heater Specification Sheet
PDF 3 MB
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100001039 Rinnai Commercial Water Heater Specification Sheet-French
PDF 3 MB
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100001094 Rinnai Commercial Water Heater Tech Sheet-RCW399AN-RCW500AN-English
PDF 5 MB
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100001096 Rinnai Commercial Water Heater Tech Sheet-RCW399AN-RCW500AN-French
PDF 5 MB
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100001098 Rinnai Commercial Water Heater Tech Sheet-RCW399AN-RCW500AN-Spanish
PDF 5 MB
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100001044(00B) Rinnai Commercial Water Heater Submittal Form-FIELDS
PDF 2 MB
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100001045 Rinnai Commercial Water Heater Submittal Form-FIELDS-French
PDF 3 MB
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100001026 Warranty_Rinnai Commercial Water Heater-English
PDF 251 KB
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100001027 Warranty_Rinnai Commercial Water Heater-French
PDF 303 KB
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100001028 Warranty_Rinnai Commercial Water Heater-Spanish
PDF 264 KB
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