Connecting The Gas Supply - Navien NPE-32AWE Installation Manual

3.3 Connecting the Gas Supply

WARNING
If a gas type other than the one specified on the water
heater reference plate is used, it could cause a fire or
even an explosion.
It is important to ensure that the gas supply is suitable
for the type and capacity of the water heater.
Thoroughly check the seal and draining of the entire
installation, as a gas leak could cause serious damage.
DANGER
Gas leaks can cause explosions resulting in serious
personal and material damage.
Keep all doors and windows open while you are bleeding
the gas pipes and put out any cigarettes, flames or other
possible source of ignition.
18 Installing the Water Heater
For the installation of any type of gas, the installer must be
authorised by the Ministry of Industry and strictly follow the
applicable Gas Regulations. The gas installation must comply
with the Gas Installation Regulation.
However, the following recommendations must be complied
with, at the least:
Before installing the gas pipes, check the type of gas is
compatible with the water heater.
Check that the gas meter in the home can measure the rate of
gas supply required.
The gas pipe diameter is not determined by the water heater
connection. It should be calculated in accordance with its
length and consequently its pressure drop.
The pipes must be directly connected to the main gas supply
pipe, not connected in parallel to other gas appliances.
Check there are no leaks from the installation.
The gas supply company is solely responsible for connecting
the gas meter to the gas installation.
To connect the gas supply:
1. Connect the gas supply pipe to the connection located on
the underside of the appliance.
2. After completing the gas installation, check there are no
leaks and bleed the air from all the pipes, following the
procedures described in the applicable standards to this
respect.
Gas Inlet Adapter
Bottom View
Gas Pipe
Union
Gas Shutoff Valve