For indoor or outdoor installations on pools and spas. Features include an LCD temperature readout with dual thermostat controls, temperature safety lockout, and six-position control panel. PMG burner technology requires no outdoor draft hood. Proven Dura-Glas™ Resin provides rust-proof construction. Heavy-duty (HD) unit with cupro-nickel exchanger for improved performance in more challenging applications, like low pH, high flow, or heavy use.

• Now, with smart connectivity and energy-saving automation, it’s easier than ever to get the pool warm and ready whenever needed.
• New automation functionality and ignition control module with flame strength sensor for always optimized performance.
• Max-E-Therm Heater is certified for low NOx emission.
• The multi-position top panel allows the digital display to be re-positioned for convenient operation.
• A tough, rustproof exterior handles the heat and weathers the elements.
• Certified for outdoor and indoor installations.
• Optional Smart Heater Bypass valve control diverts water flow when the heater isn’t needed to help save up to 35% in yearly operational costs.*

Specifications:

• Brand: Pentair
• Application: Indoor, Outdoor, Pool, Spa
• Shipping Dimensions: 27.75 x 34.25 x 32 inch
• Commercial, Residential, or Professional: Residential
• Weight: 127 pounds
• Frequency Rating (Hz): 60
• Fuel Type: Natural Gas
• Phase: Single
• Weight: 138 pounds
• Standards Approvals: CSA Certified
• Voltage: 120V, 240V
• BTU Input: 400,000 British thermal unit
• Cabinet Depth: 31.69 inch
• Cabinet Height: 30.03 inch
• Cabinet Width: 25.15 inch
• Control Type: Digital
• Flow Rate Max: 120 gal/min
• Flow Rate Min: 40 gal/min
• Green or Energy-Efficient Product: True
• Product Depth: 30 inch
• Product Height: 26 inch
• Product Width: 26 inch
• Tubing Material: Cupro Nickel
• UPC Code: 022315306172
• Model: SR400HD 400 HD - Natural Gas - 400K BTU - Cupro-Nickel

Optional Accessories:

• 475002 - 3'' PVC Direct Air Intake Duct Kit
• 462048 - Valve Bypass Assembly Connector

PLEASE NOTE: All HD and ASME HD Heater models include the Cupro-Nickel Heat Exchanger.

Support Documents:

• Max-E-Therm Heaters for Pools and Spas
• Max-E-Therm Users Guide
• StaRite Heater Connector Tube Installation Instructions
• Max-E-Therm Heater Manifold Replacement Instructions Manual
• Max-E-Therm Heater Groundwire Kit Installation Instructions
• Max-E-Therm Direct Air Intake Duct Kit Installation Instructions
• Heater Checklist
• Max-E-Therm Heater Submittal Data Sheet