Navien NHB H Series, Инструкция по установке и эксплуатации

Страница: 124 / 143

124 Appendixes
Note
●
Please confirm the installation
elevation by using the provided QR
code to access the following website
(https://www.navieninc.com/
elevation) and entering the proper
zip/postal code.
Note
●
This unit may be installed at elevations
up to 10,100 ft (3,078 m) for use with
natural gas and propane. To use the unit
at a specific altitude, the DIP switches
should be set as described above.
●
High Altitude: Above 2,000 ft (610 m), the
unit will de-rate by 3% for each 1,000 ft
(305 m) of altitude gain for NG and 4%
de-rate for propane gas.
●
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.
●
Note that the Gas Orifice from the
PROPANE GAS & HIGH ALTITUDE
CONVERSION KIT covers the boiler’s
installation at an altitude of 0 to 10,100 ft.
WARNING
Ensure that the High Altitude setting reflects the
actual location of the boiler. If not, it may cause
personal injury or malfunction of the boiler.
12. Remove the Gas Orifice, ensure that the gasket
is properly seated inside the port, and then
install the new Gas Orifice for use with Propane
gas. Ensure that the Orifice is properly seated on
the gasket inside the port before proceeding to
the next step.
Gasket
13. Replace the gas inlet pipe to its original position
and use all screws to secure all connections.
Note
Do not overtighten as this may
damage or crack the components.
14. Set the PCB DIP switch to change the gas type.
For LP, set DIP SW2 (Set of 8 Switches) #1 to ON.
For NG, set DIP SW2 (Set of 8 Switches) #1 to OFF.
WARNING
Ensure that you have turned off the power to
the boiler before accessing the DIP switches.
1 2 3 4 5 6
O
N
O
N
1 2 3 4 5 6 7 8
Switch Function Setting Comment
1 Gas Type
Natural Gas 1-OFF
Refer to
Table 1
on page
121.
Propane Gas 1-ON
2&3
High
Altitude
0-1,999 ft
(0-609m) 2-OFF,
3-OFF
2,000-5,399 ft
(610-1,645m) 2-ON,
3-OFF
5,400-7,699 ft
(1,646-2,346m) 2-OFF,
3-ON
7,700-10,100 ft
(2,347-3,078m) 2-ON,
3-ON
When applying the Gas Orifice for high altitude,
set the PCB DIP switches by altitude according
to the table above.