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Previous Name : N-1321M-ASME-NG

Min Gas Input (Btu)	22500
Max Gas Input (Btu)	380000
Height (in)	29.7
Width (in)	19.1
Depth (in)	11.8
Weight (lbs)	106
Thermal Efficiency	80%
Energy Factor	N/A
Afue	N/A
Quick-Connect Compatible?	Yes
Cold Water Connection Size (in)	1
Hot Water Connection Size (in)	1
Gas Connection Size (in)	3/4
Power Supply	120 VAC (60 Hz)
Current Draw (A)	3.091
Exhaust Vent Diameter Requirements	5"
Exhaust Vent Material Requirements	Category III Stainless Steel
Max Vent Length with 1 elbow	45’
Vent Termination Clearances to Any Building Opening (ft)	Below = 4’, Side = 4’, or Above = 1’
Gas Supply Pressure Range	5 - 10.5" WC
Min Gas Line Size	1" up to 20’
Water Pressure Rating (psi)	15-150
Case Clearances (in)	Top = 12", Front = 4", Sides = 2", Back = 0"
Combustion Air Requirements - using Indoor Air	380 in²

Combustion Air Requirements - using Outdoor Air	100 in²
Head Loss at 2 gpm	4.62 ft of head
Cold Connection Height	2.2"
Power Consumption w/out Freeze Prevention	137 Watts
Power Consumption w/Freeze Prevention	371 Watts
Flow Meter Alarm	Yes
Service Reminder	No
Condensate Handling Method?	N/A
Noise Rating (dB)	Less than 60 dB
Tested to UL Computer Controlled Safety Standards	Yes
Flame Sensor	Yes
High Limit Switch	Yes
Lightning Protection	Yes
Overheat Cutoff Fuse	Yes
Temperature Lockout	No
Ignition Type	Direct Electronic
Case Material	Durable Stainless Steel Casing
Color/Finish	Stainless Steel
Flue Collar Material	Stainless Steel
Primary Heat Exchanger Material	Copper
Secondary Heat Exchanger Material	N/A
Mounting Type	Wall Hung
Package Contents	Anchoring Screws, Remote Controller, Remote Controller Cord, Owner’s Guide, Warranty, Installation Manual, Heat Exchanger Inspection Report
Water Holding Capacity	0.6 gallons

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