Navien NPE-180A User manual

NPE-180A / 210A / 240A
Location Requirements
Allowable minimum clearances
on dry wall only
termination
Secure the mounting bracket to the wall
rest the unit on the hooks
provided on the wall bracket
on the wall.
Operation Manual and
Choosing an Installation
Top 9 inches(229mm)
minimum
36 inches(900mm)
minimum
0.5 inches(20mm)
minimum
0.5 inches(20mm)
minimum
Back
4 inches(100mm)
minimum
24 inches(600mm)
minimum
Front
3 inches(76mm)
minimum
3 inches(76mm)
minimum
Sides
12 inches(300mm)
minimum
12 inches(300mm)
minimum
Bottom
Clearance
from:Indoor Installation Outdoor Installation
Conversion Kit
Spare Parts
This product must be installed and serviced by a
licensed plumber, a licensed gas tter, or a professional
service technician. Navien is not liable for any damages
or defects resulting from improper installation.
This water heater is congured for Natural Gas
from the factory. If conversion to Propane Gas
in required, the conversion kit supplied with
the water heater must be used.
• 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 dierent 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 eld
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
Read the Installation Manual and Operation manual
before installing.
When 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.

Union
Full port
Gas Supply
Condensate Drain
Cold Water Supply
Hot Water Supply
Valve
Pressure
Relief
Valve
Union
Full port
Gas Supply
Recirculation Line
Condensate Drain
Cold Water Supply
Hot Water Supply
Valve
Pressure
Relief
Valve
Gas Supply Line
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
Bottom View
Gas Inlet Adapter
To the laundry
tub
To the drain via
a neutralizer
To the laundry tub via
a condensate pump
External drain
Direct to the
external drain
a
b
c
d
1 2 3 4 5 6 7 8 9 10
ON
The end of the 1/2” (NPT) plastic piping should drain into a laundry
tub or into a floor drain.
2-way valve ON OFF
Note Do not submerge the end of the pipe in water
•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.
Expansion Tank
condensate trap.

riAekatnI
Exhaust Gas
Combustion Air
Combustion Air
Vent Maintain 12" min. clearance
above highest antcipated
snow level or grade.
Combustion Air
Combustion Air
Vent
Vent
Maintain 12" min.
(18" min. for Canada)
Clearance above highest
anticipated snow level.
Maximum of 24" above roof
Locale Recommended Vent Materials
USA
Canada*
PVC Schedule 40
CPVC Schedule 80
Approved Polypropylene
Type BH Special Gas Class IIC (Polypropylene)
Type BH Special Gas Vent Class IIB (CPVC)
Type BH Special Gas Vent Class IIA (PVC)
*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.
(Optional)
Vent Termination Options
Indoor Horizontal Vent Termination
Image of Outdoor Vent Cap
(see below).
12" (300mm) min.
12" (300mm) min.
1" (25mm) min.
Side
Side
Front
Bottom
Back
Intake Air
Exhaust Gas
Top
Maximum Length '
Maximum number
of elbows: 6
•90˚ elbow =
8 linear feet of venting
•
45 ˚ elbow = 4 linear feet of venting
6
2
34
5
60
Maximum Length 150'
5 linear feet of venting
3 linear feet of venting
•90˚ elbow =
•
45 ˚ elbow =
Maximum number
of elbows: 8
78
2-to-3-inch
reducer
12" (300mm) min.
12" (300mm) min.
36" (900mm) min.
12"min.
From any
obstruction
above, below,
left, or right
Exhaust
Intake
Switch Function Setting
1-3Pump 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
4Display Temperature
Unit
Celsius 4-ON
Fahrenheit 4-OFF
5 Well Pump
Well Pump Operation 5-ON
Do Not Use Well Pump 5-OFF
6DHW 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
0-4,500 ft 9-OFF; 10-OFF
4,500-6,499 ft 9-ON; 10-OFF
6,500-8,499 ft 9-OFF; 10-ON
8,500-10,100 ft 9-ON; 10-ON

Opened Closed
20 Goodyear, Irvine, CA 92618
Tel: [phone], Fax: [phone]
Operating the Water Heater
Adjust Water Temperature
Power ON View Basic Information Resetting the Water Heater
Open
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.
NG : 3.5”~10.5” WC
LP : 8.0”~13.0” WC
The instructions on how to check the inlet gas
found in the
pressure are stated above.
filter of any trapped debris.
Note If resetting does not solve the problem, Not Setting over 125°F can
cause scalding
e
refer to the troubleshooting section of the
Operation or contact the service center.
Remove 4 screws of the
front cover assembly.
Loosen a screw two or three
turns and connect a manometer
to the pressure port.
Recommend Gas Pressure Settings: