Table of Contents
Advertisement
Navien recommends connecting the boiler as the
first appliance downstream of the gas meter, to
ensure a sufficient gas supply.
Gas meter capacity ≥ The total
capacity of connected appliances
Gas Supply Line
To connect the gas supply:
1. Determine the gas type and pressure for the
boiler by referring to the rating plate.
2. Perform a pressure test on the main gas supply
line.
3. Purge the gas line of any debris.
4. Determine the proper size and type for the gas
line. Refer to the tables that follow.
Refer to the instructions provided
Note
with the gas regulator for the
minimum pipe distance between the
regulator and the appliance.
5. Install certified full port valves on the gas supply
line and boiler.
The boiler is
recommended to be
the first appliance to
be connected to the
gas supply line.
6. Connect the gas supply line.
7. Test the supply line, all connection points, and
the boiler for gas leaks.
Tighten the boiler connection valves
Note
with care to avoid damage.
Gas Supply
Gas Inlet Adapter
Bottom View
NOTICE
Install a manual gas shut-off valve between
●
the gas supply line and the boiler.
A sediment trap must be provided upstream
●
of the gas controls.
Gas Shut off
Valve
Union
Connecting the Gas Supply
47
Advertisement
Table of Contents
