Required for Cascade/common vent installations with NPE-2, NFC-H, NFB-H and NHB (NHB -110 & NHB-150 models) series units produced on or after September 15, 2016. Includes Cascade Cable (GXXX000546), VID jumper cable and common vent collar damper.

Allows all NPE and NPN series models to control an external pump through the internal PCB.

Designed to sense supply and return temperature of your hydronic heating system. Works with NFC, NFC-H, NHB, NFB and NFB-H series boilers. (Sold in pairs.)

Designed for NPE-A. NPN-U and NPN-E series. HotButton™ kit allows manual operation of a recirculation pump (ComfortFlow™ on NPE-A). Includes an add-on PCB, 1 push button and wall plate.

"Extra push button for use with HotButton and extra wall plate.

Extra wall plate for use with HotButton and extra HotButton push buttons.

Designed for NPE-A, NPN-U and NPN-E series. Allows for combined space heating and domestic hot water when paired with a recirculation pump (ComfortFlow™ on NPE-A). Only works with AHU’s.

Primary loop manifold designed to work on NCB and NCB‐E models for fast, clean installations.

Navien’s NFB primary manifold kits are system matched for fast installations and maximum efficiency.

Primary loop manifold designed to work on NHB models for fast, clean installations. Pump not included. Not for use with NHB-110 and NHB-150 cascade installations.

Secondary loop manifold designed to work on NFB, NHB, NFC and NCB models for fast, clean installations. Pump not included.

NaviCirc is a simple plumbing device that uses the existing hot and cold water lines to reduce the wait time for hot water at the faucet without the need for a dedicated recirculation return line.

NaviCirc Valve Kit includes the NaviCirc Valve (PFFW-SXX-001) and two 1/2" x 3/8" flexible hoses and adapters.

Highly recommended for protecting hydronic heating systems by capturing magnetite and iron oxides. Especially important in retrofit situations where older piping exists.

This add-on accessory will enable customers with smartphones and tablets to control temperatures remotely, access usage data and receive diagnostic notifications on all Navien products (NPE-A, NPE-S, NPN-U, NPN-E, NCB-E, NFC, NFB, NFB-C NHB). Additionally, recirculation activation can be scheduled for any hour of any day on the NPE-A...an industry first.

NaviLink cable. Allows you to expand your NaviLink control to a maximum of 3 channels for monitoring 3 banks of 8 units. Requires NaviLink Control. Works with NPE, NCB and NHB series units.

Designed to neutralize the condensate of up to: 16 units NPE, NCB, NFC, NFB and NHB); 11 units NFB-301C; 9 units NFB-399C

Replacement Media for Commercial Neutralizer.

Designed to neutralize the condensate of up to: 6 units NPE, NCB, NFC, NFB and NHB; 3 units NFB-301C; 2 units NFB-399C

Replacement Media for Light Commercial Neutralizer.

Residential condensate neutralizer for NPE, NCB, NFC, NFB and NHB series units designed to neutralize the condensate of one unit.

Replacement Media for Residential Neutralizer.

The outdoor sensor and wire is designed to allow outdoor reset functionality on the NCB, NFC, NFB and NHB series units.

Designed for use with all NPE series units when installing your unit outside. Required for outdoor installations.

NHB series parts kit designed to help service in the field.

NFB series parts kit designed to help service in the field.

CH series parts kit designed to help service in the field.

NFC series parts kit designed to help service in the field.

NCB and NCB-E series parts kit designed to help service in the field.

NPE series parts kit designed to help service in the field.

CC, CR, NR & NP series parts kit designed to help service in the field.

Anti-Scale system designed to treat hard water. Installs on the DHW cold inlet supply.

PeakFlowE™ Replacement Media Cartridge.

PeakFlow™ Replacement Media Cartridge.

Pipe cover designed to hide gas, water and power lines for an elegant, clean look. Works with NPE series units. Use with 30012581A Plumb Easy Valve Kit.

3/4” lead free isolation valves with relief valve designed to work on NPE, NPN and NCB series units. Allows for easy and quick servicing of DHW systems.

3/4” lead free isolation valves with relief valve designed to work on NPE series units. Allows for easy and quick servicing of DHW systems. Use with Pipe Cover.

1" isolation valves without relief valve designed to work on NHB and NCB series units. Allows for easy and quick servicing of hydronic space heating systems.

Required to cascade and common vent NPE, NPN, NCB, NFC, NFB, NFB-C series and NHB-110 & NHB-150 models.

This innovative accessory will make cascading up to 16 units in 2 banks of 8 easy for emergency same day replacements. The kits are configures in 2, 3, and 4 side-by-side and 2, 4 back- to-back allowing for up to 16 units in 30 configurations. Each kit includes: * 3/4” Service Valves with PRV * 3/4” NPT Ball Valve * 2” Copper End Cap * 2-1/8” Strut Clamp * 3/4” x 24” SS Corrugated Flex Connector * 3/4” x 18” SS Corrugated Flex Connector * 1-7/8” OD Strut Clamp * 3/4” X 3/4” Adapter * 1-1/2” Gas Union * 2” Copper Coupling * 1-5/8” x 18” Strut Channel (14ga) * 3/4” x 30” Gas Flex Connector * 1-1/2” FPT Galvanized Iron End Cap * Hardware Kit

2 back-to-back

2 side-by-side

3 side-by-side

4 back-to-back

4 side-by-side

Ready-Link® Rack (V3) Base. The free standing rack system is designed for infield assembly for indoor and outdoor installations. Designed to work with NPE, NPN, NCB, NFC, NHB and NFB series units. Base rack allows installation for up to 2 units back to back.

Ready-Link® Rack (V3) Add-on. The add-on rack is designed to expand the base rack system allowing up to 16 units back to back on a free standing rack system. Designed to work with NPE, NPN, NCB, NFC, NHB and NFB series units for infield assembly for indoor and outdoor installations.

Zone pump controller designed to work with the NCB, NFC, NFB, NFB-C and NHB series allowing control from 2 to 6 zone pumps.

2 Zones

3 Zones

4 Zones

6 Zones

Designed to sense supply, return or tank temperature of your hydronic heating system. Works with NFC, NFB, NFB-C and NHB series boilers.

Wall flange designed to work on 2” intake and exhaust pipe for a clean installation look in location where the pipe goes through the wall.

Wall flange designed to work on 3” intake and exhaust pipe for a clean installation look in location where the pipe goes through the wall.

Designed for use with NPE-2 and NPN series tankless water heaters. Allows users to adjust temperature, set operational settings, and display operational info. Allows users to adjust temperature and set the timer for the recirculation activation on NPE-A2 models.

¾” Lead-Free isolation valve kit with relief valve – 3 valve set: Cold, Hot, Recirculation Return. Designed to work with NPE-A series units.

Designed for NPN-U when installing unit outdoors. Required for NPN-U outdoor installations.

75 PSI

150 PSI

Pipe cover designed to hide gas water and power connections for an elegant, clean look. Works with NPN-U and NPN-E units.

6 pieces per box

21" (533mm)

Converts proprietary equipment data to LonWork protocol. Includes gateway, power supply, connectors and set up instructions.

Converts proprietary equipment data to BACnet MS/TP, BACnet/IP and Modbus TCP building automation protocols. Built-in WI-FI capability allows connection without accessing facility’s LAN network. Includes gateway, power supply, connectors and set up instructions.

80-125 mm 45º

80-125 mm 90º

13" (330mm)

GXXX001952

11.5" (292mm)

Ready-Link® Commercial Boiler Rack System Base. The free standing rack system is designed, with pipe support brackets, for infield assembly and approved for indoor installations. Designed to work with NFB-C series units.

Ready-Link® Commercial Boiler Rack System Add-on. The add-on rack is designed, with a pipe support bracket, to expand the base rack system allowing up to 16 units on a free standing rack system. Designed to work with NFB-C series units for infield assembly and approved for indoor installations

Required for cascade/common vent installations with NFB-C

Includes cascade cable (GXXX000546) and common vent collar damper.

Pipe cover designed to hide gas, water and power lines for an elegant, clean look. Works with NPE-2 series units. Use with 30012581A Plumb Easy Valve Kit.

Designed for use with NPE-2 series units when installing your unit outside. Required for outdoor installations.

Primary loop stainless steel manifold designed to work on NCB-H and NFC-H models for fast, clean installations. This package includes new stainless steel manifold, isolation valves with gaskets, PRV/air vent/LWCO adapter tree, air vent, threaded connection adapter with clip and LWCO plug.