Product Overview

The Raypak 017977F Heat Exchanger Copper Tube Bundle is a genuine OEM replacement designed for compatible Raypak 406A and 407A ASME pool and spa heaters manufactured from December 2019 forward. This copper tube bundle is specifically used with ASME-certified metal heat exchanger configurations featuring bronze headers.

Designed to restore the heater’s heat-transfer section, the 017977F is the correct copper replacement tube bundle for applicable 406A atmospheric ASME and 407A Low NOx ASME models. Proper model, manufacturing date, header configuration, and heat exchanger material should always be confirmed before ordering.

Key Features

Genuine Raypak OEM Replacement

Manufactured to Raypak specifications for proper fit and compatibility with designated ASME heater configurations.

Copper Tube Bundle

Uses copper heat exchanger tubing to transfer heat from the combustion system to the circulating pool or spa water.

For Post-12/2019 ASME Heaters

Designed for applicable Raypak ASME units manufactured from December 2019 forward with the newer bronze-header heat exchanger configuration.

406A & 407A Compatibility

Used with compatible Raypak 406A Digital ASME and 407A Digital Low NOx ASME pool and spa heaters.

Benefits

• Genuine Raypak factory replacement component
• Restores the primary heat-transfer section of the heater
• Designed specifically for copper ASME heat exchangers
• Correct OEM fit for compatible bronze-header configurations
• Suitable for commercial and professional pool and spa heater applications
• Helps address leaking, damaged, scaled, or deteriorated tube bundles

Specifications

Installation Information

Replacement of a heater tube bundle requires substantial disassembly of the heat exchanger and should be performed by a qualified pool heater technician. Water, gas, and electrical power must be properly shut off before servicing the heater.

When replacing a failed tube bundle, the cause of the original failure should also be identified and corrected before returning the heater to service.

Confirm Before Ordering

This part is specifically for compatible ASME metal/bronze-header configurations manufactured from December 2019 forward. It should not be selected solely based on heater size.

Confirm the complete heater model number, serial number, manufacturing date, ASME configuration, header type, and copper heat exchanger designation before purchase. Copper and cupronickel tube bundles are different replacement parts and should not be interchanged.

Raypak also recommends replacing the Unitherm Governor and inspecting the bypass assembly when a tube bundle has failed, since hydraulic conditions or improper water chemistry that damaged the original bundle may have affected these components as well.

Warranty Information

Warranty coverage is subject to Raypak’s applicable replacement-part and equipment warranty terms. Damage caused by improper installation, incorrect water chemistry, scale, corrosion, or improper operating conditions may not qualify for warranty coverage.

Customer Q&A

Q: Is Raypak 017977F an OEM part?

Yes. 017977F is a genuine Raypak replacement copper tube bundle.

Q: Does this fit a Raypak 406A?

Yes, when used with the applicable 406A ASME metal/bronze-header heater manufactured from December 2019 forward.

Q: Will it fit the Raypak 407A Low NOx heater?

Yes. Raypak specifies 017977F as the copper ASME tube bundle for applicable 407A units manufactured from December 2019 forward.

Q: Is this a cupronickel heat exchanger?

No. This is the copper version. Copper and cupronickel tube bundles use different Raypak part numbers.