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NCB-190/080H
- Smart controls LCD display, quick dial wheel & Setup Wizard
- Advanced stainless steel dual heat exchangers
- 15:1 DHW and up to 7.3:1 heating TDR
- Field convertible gas system (NG/LP) up to 10,100 ft.
- Capable of cascading up to 15 NPE water heaters
- Capable of common venting up to 7 NPE water heaters
- Built-in 3 zone pumps and 3 zone valves powered connections
- 2” venting up to 65′ and 3” venting up to 150′
NCB-190/080H premium features and benefits
2″ PVC venting up to 65 feet including economical schedule 40 PVC.Vent Installation Detector (VID) for added safety.
Dual Venturi system creates better combustion control and turndown ratio and easy field gas conversions.
Easily accessible built-in DHW module includes integrated boiler pump, flow adjustment valve, DHW stainless steel heat exchanger, mixing valve and 3-way valve.
Durable dual condensing stainless steel heat exchangers recover extra heat for maximum efficiency.
Advanced user interface with Setup Wizard is made easy with backlit panel, click-wheel control and intuitive text.
Specifications
| Item | NCB-190/080H | |
|---|---|---|
| Dimensions | 43.9cm W x 74.4cm H x 32.5cm D (17.3″ W x 29.3″ H x 12.8″ D) | |
| Boiler weight | 39.5 kg (87 lbs) | |
| Boiler Weight With Water | 42.2 kg (93 lbs) | |
| Installation type | Indoor wall-hung | |
| Venting type | Forced draft direct vent | |
| 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) | -0.01 ” WC to -0.31 ” WC | |
| Propane gas manifold pressure (min-max) | -0.04 ” WC to -0.33 ” WC | |
| Connection sizes | Gas inlet | |
| Power supply | Main supply | 120V AC, 60Hz |
| Maximum power consumption | Up to 15 amperes | |
| Materials | Casing | Cold-rolled carbon steel |
| Heat exchanger | 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 | |
| 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.
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