Navien NPE-180A2 Installation Manual page 101

Category Item
4. AHU Outdoor
High Temp
5. AHU SH MIN
Set-Point
3. Air Handler Unit
6. AHU SH MAX
Set-Point
7. AHU 2Stage
T/S Output
Description
Set the outdoor
high temperature
when AHU and
the outdoor reset
function are ON.
Setting range:
●
Outdoor Low
Temp+9 °F
(5 °C) - 104 °F
(40 °C)
Default: 70 °F
●
(21 °C)
Set the space
heating minimum
temperature
when AHU and
the outdoor reset
function are ON.
Setting range:
●
100 °F (37.5
°C) - 140 °F (60
°C) or [SH Max.
Set-point–36 °F
(20 °C)]
Default: 100 °F
●
(37.5 °C)
Set the space
heating
maximum
temperature
when AHU and
the outdoor reset
function are ON.
Setting range:
●
CH Min. Set-
Point+36 °F
(20 °C) - 185 °F
(85 °C)
Default: 180°F
●
(82 °C)
Set the heating
capacity to turn
on the 2-stage
T/S output when
AHU is ON and
2-stage T/S
output is OFF.
Setting range:
●
Min. heating
capacity -
100%
Default: 25%
●
Category Item
1. Fixture
Distance
2. Recirc Interval
Time
4. HotButton
(Manual recirc)
3. Recirc off Diff.
Temp
Operating the Water Heater
Description
Set the pipe length
to the desired
position for virtual
turn-off function
using the internal
thermostat when
the external
HotButton surface
temperature
sensor is not
installed.
Setting range:
●
15 ft (4.5 m) -
660 ft (198 m)
Default: 30 ft
●
(9 m)
Set the
recirculation
duration.
When the
●
energy saver
function is
disabled
- Setting range:
1-120 min.
(set in 1 min.
increments.)
- Default: 20 min.
When the
●
energy saver
function is
enabled
- Setting range:
1-5 min.
(set in 1 min.
increments.)
- Default: 5 min.
Set the
Recirculation
Off offset
temperature.
When the
●
energy saver
function is
disabled
- Setting range:
5 °F (3 °C)-
54 °F (30 °C)
(set in 1 °F
[0.5 °C]
increments.)
- Default: 9 °F
(5 °C)
When the
●
energy saver
function is
enabled
- This setting is
not adjustable.
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