The Raypak Digital Low NOx ASME 407A (B-R407A-EN-C #26, SKU 017708) is a 399,000 BTU natural gas pool and spa heater built for commercial installations where ASME certification is required by code — apartment complexes, condominiums, public pools, and any facility governed by local pressure vessel regulations. It replaces the discontinued SKU 009295.

This model replaces the Raypak 009295. The current replacement model is SKU 017708 (B-R407A-EN-C #26 ASME).

Key Features

• 399,000 BTU natural gas — ASME-certified for commercial installations; meets ANSI Z21.56 pool heater standard
• Low NOx certified — compliant with SCAQMD Rule 1146.2 and SJAPCD Rule 4308; required in California and other regulated regions
• Bronze headers with porcelainized waterways — commercial-grade corrosion resistance; stainless steel tube sheets for a fully nonferrous waterway
• Copper fin tube heat exchanger with ProTek Shield — integral extruded copper construction; replaceable ProTek module absorbs corrosive elements to extend heat exchanger life
• Digital LCD thermostat with on-board diagnostics — microprocessor-controlled; live temp readout and fault codes on the panel
• Remote compatible — connects to most 2-wire and 3-wire pool automation systems; 120/240V input

ASME certification is required by many local codes for commercial pool heaters over 200,000 BTUH. Verify your jurisdiction's requirements before ordering the standard (non-ASME) model. Professional installation required to validate warranty.