Navien NR-180A, Operation & Installation Manual

Page: 9 / 89

SPECIFICATIONS
9
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)
Flow Rate
(DHW)
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
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
W17” x H28”x D14” W17” x H28”x D15” W17” x H28” xD15”
77 lbs 86 lbs 86 lbs
67 lbs 77 lbs 77 lbs
Indoor / Outdoor Wall-Hung
Forced Draft Direct Vent
Electronic Ignition
15 – 150 PSI
9”WC ~ 13.5” WC
0.4”WC ~ 4.2” WC
0.8”WC ~ 7.6” WC
5”WC ~ 10.5” WC
0.4” WC ~ 3.5” WC
0.8” WC ~ 5.9” WC
0.6" WC ~ 3.7" WC
1.0" WC ~ 5.9" WC
8”WC ~ 13.5” WC
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,CPVC, Polypropylene, ø3" Special Gas Vent Type BH
(Class IIIA/B/C)
Intake (ø3”)
ø3" PVC,CPVC, Polypropylene, ø3" Special Gas Vent Type BH
(Class IIIA/B/C),
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
Plumb Easy Valve Set, Condensate Neutralizer,
Ready-Link Communication Cable
Dimensions
Weight NR-A, NP-A
Weight NR, NP
Installation Type
Venting Type
Ignition
Water Pressure (min-max)
Natural Gas Supply Pressure
(from source, Min ~ Max)
Propane Gas Supply Pressure
(from source, Min ~ Max)
Natural Gas Manifold Pressure
(min-max)
Propane Gas Manifold Pressure
(min-max)
Minimum Flow Rate