Navien NPE-180A2 Installation Manual page 103

DANGER
Inspect the O-ring between the gas valve and
gas valve inlet adapter whenever they are
disassembled. The O-ring must be in good
condition and must be installed. Failure to
comply will cause a gas leak, resulting in severe
personal injury or death.
WARNING
Ensure that you have turned off the power to the
water heater before accessing the DIP switches.
ON
Switch Function
Natural Gas
1 Gas Type
Propane Gas
9. When changing the gas type, configure the DIP
switch setting as shown below.
If you do not convert the gas
Note
type, skip step 9 and follow the
instructions in step 10.
a. Set front panel DIP switch 1 to change the
gas type.
- Natural Gas: Set DIP switch 1 to OFF.
- Propane Gas: Set DIP switch 1 to ON.
b. Turn on the power to the water heater. Then,
error 788 will occur.
c. In error display mode, press the Back button
( ) to execute the Gas Type Check menu
under Start-Up Wizard.
d. Set the Gas Type Check option.
- Natural Gas: The error is cleared and the
water heater starts to operate normally.
- Propane Gas: When the gas type
is identified as changed in the Gas
Conversion Kit Required option, the error
is cleared and the water heater starts to
operate normally.
102 Appendixes
Setting
OFF
ON
10. Set the panel setting corresponding to the
installation altitude.
a. Press and hold the Menu button (
the Back button (
3 seconds on the front panel to access the
Service/Installer menu.
b. Select 1. Installer Menu > 2. Parameter
Settings > 14. Altitude Setting by pressing
the OK button (
Function Menu
1. Installer Menu
1.2. Parameter
Altitude
Settings
Setting
1.2.14. Altitude
Setting
11. Turn on the gas and water supply to the water
heater.
DANGER
Failure to properly set up the altitude could
cause carbon monoxide poisoning, resulting in
severe personal injury or death.
This unit may be installed at elevations
Note
●
up to 10,100 ft (3,078 m) for use with
natural gas and propane.
To use the unit at a specific altitude, the
altitude setting should be configured
as described above.
High Altitude: Above 2,000 ft (610 m),
●
the unit will de-rate by 3% for LNG
Models or 4.5% for LPG models for
each 1,000 ft (305 m) of altitude gain.
For Natural gas, if you install the unit at
●
above 5,400 ft (1,646 m), it is required
to change the Gas Orifice for high
altitude. Be careful not to confuse it
with the Gas Orifice for propane gas.
Note that the Gas Orifice from the
●
PROPANE CONVERSION KIT covers the
water heater's installation at an altitude
of 0 to 10,100 ft.
) and
) simultaneously for
) and set up the altitude.
Description
1. 0-2,000 ft
2. 2,000-5,400 ft
3. 5,400-7,700 ft
4. 7,700-10,100 ft