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Navien Gas Water Heater Installation
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Specifications:
Please review these specifications before installation to confirm proper unit selection: As
Navien is dedicated to continuous product improvement, Navien reserves the right to
change specifications and/or design and/or discontinue any model or feature without
prior notice and without incurring obligations.
Item
NR-180(A)
NP-180(A)
NR-210(A)
NP-210(A)
NR-240(A)
NP-240(A)
Heat Capacity
(Input)
Natural Gas
Min: 15,000 Btuh
Max: 150,000 Btuh
Min: 17,000 Btuh
Max: 180,000 Btuh
Min: 17,000 Btuh
Max: 199,000 Btuh
Propane Gas
Min: 15,000 Btuh
Max: 150,000 Btuh
Min: 17,000 Btuh
Max: 180,000 Btuh
Min: 17,000 Btuh
Max: 199,000 Btuh
Heat Capacity
(Input)
35°F Rise
8.3 GPM
10.0 GPM
11 GPM
45°F Rise
6.5 GPM
7.7 GPM
8.6 GPM
77°F Rise
3.8 GPM
4.5 GPM
5.0 GPM
Dimensions
W17” x H28”x D14”
W17” x H28”x D15”
W
17” x H28” xD15”
Weight NR-A, NP-A
77 lbs
86 lbs
86 lbs
Weight NR, NP
67 lbs
77 lbs
77 lbs
Installation Type
Indoor / Outdoor Wall-Hung
Venting Type
Forced Draft Direct Vent
Ignition
Electronic Ignition
Water Pressure (min-max)
15
– 150 PSI
Natural Gas Supply Pressure
(from source, Min ~ Max)
6
”WC ~ 10.5” WC
5
”WC ~ 10.5” WC
Propane Gas Supply Pressure
(from source, Min ~ Max)
9
”WC ~ 13.5” WC
8
”WC ~ 13.5” WC
Natural Gas Manifold Pressure
(min-max)
0.4
”WC ~ 4.9” WC
0.4
”WC ~ 3.5” WC
0.6
”WC ~ 3.7” WC
Propane Gas Manifold Pressure
(min-max)
0.8
”WC ~ 7.6” WC
0.8
”WC ~ 5.9” WC
1.0
”WC ~ 3.7” WC
Minimum Flow Rate
0 GPM for “A” models (no minimum flow rate requirement),
0.5 GPM for non-
“A” models
Connection
Sizes
Cold Water Inlet
3/4” NPT
Hot Water Outlet
3/4” NPT
Gas Inlet
3/4” NPT
Power Supply
Main Supply
120VAC, 60Hz
Maximum Power
Consumption
200W (max 2A)
Materials
Casing
Cold Rolled Carbon Steel
Heat Exchangers
Primary Heat Exchanger: Stainless Steel
Secondary Heat Exchanger: Stainless Steel
Venting
Exhaust (ø3”)
ø3” PVC, ø3” CPVC, ø3” Special Gas Vent Type BH
(Class IIA (PVC) and Class I
Intake (ø3”)
PVC, CPVC, Galvanized Steel, Flex Aluminum, Flex, ABS,
Vent Clearances
0” to combustibles
Safety Devices
Flame Rod,Thermal Fuse(Overheat Cut Off device)
APS, GPS, Gas-Valve Operation Detector,
Ignition Operation Detector, Water Temperature High Limit Switch,
Exhaust Temperature High Limit Switch
Accessories
Remote Controller, Plumb Easy Valve Set,
Condensate Neutralizer, Ready-Link Communication Cable
SPECIFICATIONS