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SKU: NFC-250/200H

NFC-250/200H

Name: NFC-250/200H
Brand: Navien
SKU: NFC-250/200H
Availability: InStock

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NFC-250/200H

HIGH EFFICIENCY CONDENSING COMBI-BOILER

95% AFUE – Energy Star certified
DHW 15:1 TDR and heating 15:1 TDR
2” venting up to 65’, 3” venting up to 150'
Advanced controls with intuitive user interface and Setup Wizard
NEW DHW module with mixing and water adjustment valves
Built-in powered connections for 3 zone valves or 3 zone pumps
Common venting with up to 7 NPE units and cascading up to 15 NPE units
Approved for high altitude up to 10,100 ft. (NG and LP), conversion kits included
Patented stainless steel fire tube heat exchanger with non-metallic condensate base

NFC-250/200H premium features and benefits

2" venting up to 65' (including schedule 40 PVC).Vent Installation Detector (VID) for added safety.

Dual Venturi system creates better combustion control, turndown ratio and easy field gas conversions.

Patented stainless steel fire tube heat exchanger Navien’s innovative heat exchanger design is ASME‑Certified,“H” Stamped, and reduces high-stress point weld failures common on other combi-boilers.

Advanced user interface with Setup Wizard is made easy with backlit panel, click-wheel control and intuitive text.

Advanced circuitry with built-in control for 3-zone pumps or 3-zone valves.

Easily accessible built-in DHW module includes integrated boiler pump, flow adjustment valve, DHW stainless steel heat exchanger, mixing valve and 3-way valve.

NFC-250/200H QuickFacts

Dimensions

43.9cm W x 85.1cm H x 43.9cm D (17.3" W x 33.5" H x 17.3" D)

Certification Summary

Product approvals

CSA: Yes
SCAQMD 1146.2(NOx, <20ppm): Yes
Low Lead(<0.25%): Yes
ASME Certified: Yes "H" Stamp
AHRI Number: 206368825
Canadian Registration Number: 2087.94YT,
2087.91(BC)
Energy star certified: Yes

Space Heating Ratings

AFUE, %: 95.0
Heating Capacity: 183,000 BTU/h

Temperature Rise

Temp Rise	NFC-250/200H
19.4 °C (35 °F)	40.9 l/m (10.8 GPM)
22.2 °C (40 °F)	36 l/m (9.5 GPM)
25 °C (45 °F)	31.8 l/m (8.4 GPM)
27.8 °C (50 °F)	28.8 l/m (7.6 GPM)
30.6 °C (55 °F)	26.1 l/m (6.9 GPM)
33.3 °C (60 °F)	23.8 l/m (6.3 GPM)
37.2 °C (67 °F)	21.2 l/m (5.6 GPM)
38.9 °C (70 °F)	20.4 l/m (5.4 GPM)
42.8 °C (77 °F)	18.5 l/m (4.9 GPM)
44.4 °C (80 °F)	17.8 l/m (4.7 GPM)
47.2 °C (85 °F)	16.7 l/m (4.4 GPM)
50 °C (90 °F)	15.9 l/m (4.2 GPM)
55.6 °C (100 °F)	14.4 l/m (3.8 GPM)

Gas Input Ranges

Model	NFC-250/200H
Heating	13,300 - 199,900 BTU/h
DHW	13,000 - 210,000 BTU/h

Temperature Setting Ranges

Item		Temperature Setting Range
Space Heating	Supply	25 - 85 °C (77 - 185 °F)
Space Heating	Return	20 - 70 °C (68 - 158 °F)
DHW		30 - 60 °C (86 - 140 °F)

Actual supply and return temperatures vary depending on the selected outdoor reset curve.

Ratings

Navien Combination Boiler Space Heating Ratings
Model¹		NFC-250/200H
Heating Input	Min	13,300 BTU/h
Heating Input	Max	199,900 BTU/h
Heating Capacity²		183,000 BTU/h
Net AHRI Rating, Water³		159,000 BTU/h
AFUE², %		95.0
Other Specifications
Water pressure	Min	0.8 kg/cm² (12 PSI)
Water pressure	Max	5.6 kg/cm² (80 PSI)
Water Connection Size (Supply, Return)		1" NPT

Navien Condensing Boiler Domestic Hot Water Ratings
Model¹		NFC-250/200H
Input Ratings	Min	13,000 BTU/h
Input Ratings	Max	210,000 BTU/h
Other Domestic Hot Water Specifications
Water pressure	Min	1.1 kg/cm² (15 PSI)
Water pressure	Max	10.5 kg/cm² (150 PSI)
Minimum Flow Rate		1.9 l/m (0.5 GPM)
Flow Rate 25 °C (45 °F) Temp Rise		31.8 l/m (8.4 GPM)
DHW Connection Size (Supply, Return)		3/4" NPT

1 Ratings are the same for natural gas models converted to propane use. 2 Based on U.S. Department of Energy (DOE) test procedures. 3 The net AHRI water ratings shown are based on a piping and pickup allowance of 1.15. Consult Navien before selecting a boiler for installations having unusual piping and pickup requirements, such as intermittent system operation, extensive piping systems, etc.

Specifications

Item		NFC-250/200H
Dimensions		43.9cm W x 85.1cm H x 43.9cm D (17.3" W x 33.5" H x 17.3" D)
Boiler weight		64 kg (141 lbs)
Boiler Weight With Water		77.1 kg (170 lbs)
Installation type		Indoor wall-hung
Ignition		Electronic ignition
Natural gas supply pressure (from source)		3.5 " WC to 10.5 " WC
Propane gas supply pressure (from source)		8 " WC to 13.5 " WC
Natural gas manifold pressure (min-max)		-0.03 " WC to -0.92 " WC
Propane gas manifold pressure (min-max)		-0.02 " WC to -0.77 " WC
Connection sizes	Gas inlet
Power supply	Main supply	120V AC, 60Hz
Power supply	Maximum power consumption	Less than 15 amperes
Materials	Casing	Cold-rolled carbon steel
Materials	Heat exchangers	Stainless steel
Venting	Exhaust	2” or 3” PVC, CPVC, approved polypropylene 2” or 3” special gas vent type BH (Class III, A/B/C) 2” or 3” stainless steel
	Intake	2” or 3” PVC, CPVC, polypropylene 2” or 3” special gas vent type BH (Class III, A/B/C) 2” or 3” stainless steel
	Vent clearances	0" to combustibles
Safety Devices		Flame rod, APS, ignition operation detector, water temperature high limit switch, exhaust temperature high limit sensor, water pressure sensor, burner high limit fuse, vent installation detector
Temperature setting range		30 - 60 °C (86 - 140 °F) (up to °C (0 °F) when setting the parameter)

Navien reserves the right to change specifications at any time without prior notice. Please refer to www.NavienInc.com to verify you have the most current information.

Navien reserves the right to change specifications at any time without prior notice.

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NFC-250/200H

NFC-250/200H

HIGH EFFICIENCY CONDENSING COMBI-BOILER

NFC-250/200H premium features and benefits

NFC-250/200H QuickFacts

Dimensions

43.9cm W x 85.1cm H x 43.9cm D (17.3" W x 33.5" H x 17.3" D)

Certification Summary

Product approvals

Space Heating Ratings

Temperature Rise

Gas Input Ranges

Temperature Setting Ranges

Ratings

Navien Combination Boiler Space Heating Ratings

Other Specifications

Navien Condensing Boiler Domestic Hot Water Ratings

Other Domestic Hot Water Specifications

Specifications

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