48 Installing the Water Heater
●
10-switch Panel:
Switch Function
Setting
Remark
1
Gas
Type
Off Natural Gas
This can only be selected when the power is on or
when the DIP switch error has been solved.
*
Preheating
:
●
Preheating starts when
remote controller is not
connected.
●
When remote controller is
connected, preheating starts
and operates based on the
timer.
●
Set the timer on the remote
controller to use hot water at
the time of your choice.
●
Preheating does not function
in Cascade Mode (Preheating
OFF).
●
Freeze protection is still
available with preheating OFF.
**
High Altitude
Above 2,000 ft (610 m), the water
heater will de-rate by 3% with
Natural Gas and by 4% with
Propane for each 1,000 ft (305 m)
of altitude gain.
On Propane Gas
2
Recirculation Mode
Preheat* Not Used
2: OFF, 3: OFF
Internal Circulation Preheating
2: ON, 3: OFF
3
External Circulation Preheating
2: OFF, 3: ON
2: ON, 3: ON
4
Display Temperature Unit
Celsius
4: ON
Fahrenheit
4: OFF
5
Well Pump
Well Pump Operation
5: ON
Do Not Use Well Pump
5: OFF
6
DHW Storage Tank
Storage Tank Operation
6: ON
Do Not Use Storage Tank
6: OFF
7
Commercial Lock
Temperature can be set.
7: OFF
Temperature cannot be set.
7: ON
8
Limescale Detection Alarm
Disable the limescale detection
alarm.
8: OFF
Use limescale detection alarm.
(12 month interval)
8: ON
9 & 10 High Altitude **
(Indoor Models Only)
0–1,999 ft (0–609 m)
9: OFF, 10: OFF
2,000–5,399 ft (610–1,645 m)
9: ON, 10: OFF
5,400–7,699 ft (1,646–2,346 m)
9: OFF, 10: ON
7,700–10,100 ft (2,347–3,078 m)
9: ON, 10: ON
Note
●
This water heater may be installed at elevations up to 10,100 ft (3,078 m) for use with Natural
Gas and Propane. To use the water heater at a specific altitude, the DIP switches should be set as
described above.
●
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.
●
Outdoor models can only be installed under 4,500 ft (1,370m), and the High Altitude setting
cannot be applied.
NOTICE
Do not configure the system for DHW recirculation when it is configured to run an air handler using the H2Air
controller. DHW recirculation and Navien H2Air configurations cannot be used at the same time.
