About The Boiler; Included Items; Accessories - Navien NHB-055 Installation & Operation Manual

1. About the Boiler

1.1 Included Items

When you open the box, you will find the following items with
the boiler. Check the box for each of the following items before
installing the boiler.
Installation & Operation Manual,
User's Information Manual
2 in Vent Termination Caps (x2)
Spare Parts
Wall Mounting Bracket
Pressure Relief Valve, Heating
Outdoor Temperature Sensor and
Cable
6 About the Boiler
Quick Installation Manual
2 in Wall Flanges (x4)
Air Vent
Tapping Screws & Anchors (x4)
Conversion Kit
Air Vent Bushing (3/4in to 1/2in)

1.2 Accessories

The following optional accessories are available for the boiler.
Navien Manifold System
(for primary zone)
Condensate Neutralizer Kit
Zone Controller
(FMZ-40/60)
Navien Manifold System
(for secondary zone)
Zone Controller
(FMZ-20/30)
System Supply/Return
Temperature Sensors