Navien NPE-180A User manual

Quick Installation Guide
Model
NPE-180A / 210A / 240A
NPE-180S / 210S / 240S
1
Lift up the water heater, rest the unit
on the hooks provided on the wall
bracket on the wall.
Secure the mounting bracket to the
wall with the tapping screws and
anchors.
Drill in the supplied anchor
bolts after considering where
the vent termination will be
located.
STEP 1 Before Installing
Read the Installation Manual and Operation manual before
installing
.
This product
must be installed and serviced by a licensed
plumber, a licensed gas fitter, or a professional service
technician. Navien is not liable for any damages or defects
resulting from improper installation.
Whe
n applicable, the installation must conform with Manufactured Home
Construction and Safety Standard, Title 24 CFR, Part 3280 and/or CAN/CSA Z240
MH Series, Mobile Homes.
Safety
DO NOT install in areas with excessively high humidity.
Location Requirements
Select the best location on “Choosing an Installation” in the installation
Manual.
Allowable minimum clearances
STEP 2 Installing
Unpacking
Navien water heater
Operation Manual and
Installation Manual
Wall mounting bracket
Tapping screws and anchors
Vent terminators
Wall flanges
Conversion Kit
Spare Parts
Checking the Rating Plate
This water heater is configured for Natural
Gas from the factory. If conversion to
Propane Gas i
s required, the conversion kit
supplied
with the water heater must be
used.
Mounting on the Wall Removing the Front Cover
Remove the
4 screws
CAUTION
Do not install water heater on dry wall only
WARNING
•Before connecting the gas supply, determine the gas type and
pressure for the water heater by referring to the rating plate. Use
only the same gas type indicated on the rating plate. Using a
different gas type will result in abnormal combustion and
malfunction of the water heater. Gas supplies should be connected
by a licensed professional only.
•The appliance and its gas connection must be leak tested before
placing the appliance in operation.
•This water heater cannot be converted from natural gas to propane
or vice versa without a Navien gas conversion kit. Do not attempt a
field conversion of this water heater without a Navien gas
conversion kit. Doing so will result in dangerous operating
conditions and will void the warranty.
Navien America Inc. is not liable for any property damage and/or
personal injury resulting from improper conversions.
For indoor installation
Clearance
from:
Indoor
Installation
Outdoor
Installation
Top
9 inches (229mm)
minimum
36 inches (900mm)
minimum
Back
0.5 inches (20mm)
minimum
0.5 inches (20mm)
minimum
Front
4 inches (100mm)
minimum
24 inches (600mm)
minimum
Sides
3 inches (76mm)
minimum
3 inches (76mm)
minimum
Bottom
12 inches (300mm)
minimum
12 inches (300mm)
minimum
* (): for outdoor installation
** Back of
the water heater: Min. 0.5”
WARNING
Follow all local codes and/or the most recent edition of the National Fuel Gas Code
(ANSI Z223.1/NFPA 54) in the USA, or the Natural Gas and Propane Installation Code in
Canada (CAN/CGA B149.1).

2
Gas Piping Connections
Water Piping Connections (NPE-180A/210A/240A)
Condensate Drain Connection
A condensate drain pipe must be connected to the 1/2” condensate outlet fitting at
the bottom of the unit and water must be poured into the exhaust connection to fill
the condensate trap.
The end of the 1/2”(NPT) plastic piping should drain into a laundry tub or into a floor
drain.
Do not submerge the end of the
pipe in water.
Note
Internal Recirculation
Hot Water Supply
Shutoff Valve
Pressure
Relief Valve
Cold Water Supply
Condensate Drain
Gas Supply
Full port
Union
Internal Recirculation Settings
ON
OFF
2
-way valve
External Recirculation
Condensate Drain
Shutoff Valve
Pressure
Relief Valve
Expansion Tank
Hot Water supply
Gas Supply
Full port
Union
Cold Water Supply
Recirculation Line
External Recirculation Settings
ON
OFF
2-way valve
The water heater is recommended to be
the first appliance to be connected
to the
gas supply line.
Gas meter
’
s capacity
≥
Total gas capacity of connected appliances
Gas supply
Gas
regulator
Bottom View
Gas Inlet Adapter
Gas Supply Line
Example:
Gas meter
425 CFH
≥
Water heater
195 CFH
+
Furnace
58.8 CFH
+
Domestic gas stove
63.7 CFH
* 1 CFH=1,020 Btuh
•1/2" rigid pipe can be used; refer to the sizing tables in the Installation
Manual for limitations. Avoid using 1/2" corrugated connectors or tubing
as
noise may occur.
Syphon
Condensate
Outlet
Water
Floor drain
Direct to the
external drain
To the drain via
a neutralizer
External drain
To the laundry
tub
To the laundry tub
via a condensate pump

3
Venting
Electrical Connections
Vent Termination Options
Indoor Horizontal Vent Termination
Interior view
Intake Air
Exhaust Gas
Exterior view
12"(300mm) min.
12"(300mm) min.
Sidewall vent Termination
12" (300mm) min.
Vertical Vent Termination
36" (900mm) min.
Venting Length
3” pipe venting
2” pipe venting
Exhaust Vent Piping Materials
•All Navien water heaters are Category IV appliances.
•The venting system should be approved for use with Category IV appliances
(typically Type BH Special Gas Vent approved by UL 1738-S636).
•Venting requirements in the USA and Canada are different (see below).
Navien recommended venting materials
Locale
Recommended Vent Materials
USA
•
PVC Schedule 40 (Solid core)
•
CPVC Schedule 40 or 80 (Solid core)
•
Approved Polypropylene
Canada*
•
Type BH Special Gas Vent Class IIA (PVC)
•
Type BH Special Gas Vent Class IIB (CPVC)
•
Type BH Special Gas Class IIC (Polypropylene)
*For installation in Canada, field-supplied plastic vent piping must comply with CAN/CGA
B149.1 (latest edition) and be certified to the Standard For Type BH Gas Venting Systems,
ULC-S636. Components of this listed system must not be interchanged with other vent
systems or unlisted pipes or fittings. All plastic components and specified primers and
glues of the certified vent system must be from a single system manufacturer and must
not be intermixed with another system manufacturer’s parts. The supplied vent
connector and vent termination are certified as part of the water heater.
12"(300mm) min.
Exhaust
Intake
12"(300mm) min.
12" min.
From any
obstructi
on
above,
below,
left, or
right
Concentric Vent Termination
Sidewall installation
Vent
Combustion Air
Combustion Air
1" (25mm) min
Maintain 12" min.
clearance
above highest
anticipated
snow level
or grade.
Roof installation
Vent
Maintain 12" min.
(18" min. for Canada)
Clearance above highest
anticipated snow level.
Maximum of 24" above
roof
Combustion
Air
Vent
Combustion Air
Image of outdoor Vent Cap
Top
Back
Side
Side
Front
Bottom
Intake Air
Exhaust gas
Maximum number
of elbows: 6
Maximum number
of elbows: 8
2-to-3 inch
reducer
Maximum Length 150'
Maximum
Length 60'
•
90˚elbow = 5 linear feet of venting
•
45˚elbow = 3 linear feet of venting
•
90˚elbow = 8 linear feet of venting
•
45˚elbow = 4 linear feet of venting
Remote Controller Connection
Power Connection
120 VAC 60 Hz
Min. 2 Amp current with proper
grounding
Confirmation of Panel DIP Switch Settings
Switch
Function
Setting
1-3
Pump and
Recirculation
No Recirculation
1-OFF, 2-OFF, 3-OFF
External Pump Only-External Recirculation
1-OFF, 2-OFF, 3-ON
Internal Pump Only-Internal Recirculation
1-ON, 2-OFF, 3-OFF
Internal Pump Only-External Recirculation
1-OFF, 2-ON, 3-OFF
Internal Pump Only-Intelligent Preheating*
1-ON, 2-ON, 3-OFF
Internal & External Pump-Internal Recirculation
1-ON, 2-OFF, 3-ON
Internal & External Pump-External Recirculation
1-OFF, 2-ON, 3-ON
Internal & External Pump-Intelligent Preheating*
1-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/Solar System
Storage Tank/Solar System Operation
6-ON
Do Not Use Storage Tank/Solar System
6-OFF
7 & 8
Lime Alarm
6 Months Alert
7-ON, 8-OFF
12 Months Alert
7-OFF, 8-ON
24 Months Alert
7-ON, 8-ON
9 & 10
High Altitude****
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
CAUTION
Disconnect the power to the water
heater before installing the remote
controller
CAUTION
Using abnormally high or low AC
voltage may cause abnormal
operation, thereby causing fire
which reduces the life
expectancy of this product.
(Optional)
Safety
DO NOT touch the
power cord with wet
hands.
DO NOT expose to
excessive
amounts of
water.

4
STEP 3 After Installing
Opening All the Valves
Operating the Water Heater
Measuring the Inlet Gas Pressure
Installing the Front Cover Ensure maximum water flow
After using the first 10 minutes, please stop using it and clean the cold water filter and
recirculation water filter of any trapped debris.
Final Check
A trial run should be performed in accordance with the Installation checklist found in
the Installation Manual.
Shut off the manual gas
valve.
Opened
Closed
Open a hot water faucet to
turn on the unit.
Shut off the hot water
faucet
.
Remove 4 screws of the
front cover
assembly.
Loosen a screw two or three turns
and connect a
manometer to the
pressure port.
Open
Open several fixtures that
have high flow rates.
Check the inlet gas pressure reading on the
manometer.
Re-open the manual
gas valve.
Adjust the inlet gas pressure with
gas regulator.
Gas supply
If not
NG : 3.5
”~10.5”
WC
LP : 8.0
”~13.5”
WC
Recommend Gas Pressure Settings:
CAUTION
The Navien water heater cannot operate properly without sufficient inlet gas pressure and volume.
The instructions on how to check the inlet gas pressure are stated above.
THIS IS ONLY TO BE DONE BY A LICENSED PROFESSIONAL.
Power ON
Adjust water Temperature
View Basic Information
Resetting the Water Heater
Temperature will appear on the
Front Panel when the power is on.
Press (+) or (-) to set the desired
temperature
Press (+) or (-) to switch the
information type.
Press Reset to solve the problem.
Setting over 125
°F can
cause scalding
Note
If resetting does not solve the
problem,
refer to the
troubleshooting section of the
Operation or contact the service
center.
Note
Pressure relief
valve
Shutoff valves
Open all the valves.
Gas shutoff valve
Navien America, Inc.
20 Goodyear, Irvine, CA 92618
Tel: (949) 420
-0420, Fax: [phone]
www.na
vienamerica.com