NFB700‑C Commercial Condensing Floor‑Standing Boiler

97.5% TE Industry Leading Thermal Efficiency
Advanced stainless steel fire tube heat exchanger
160 PSI maximum allowable working pressure for diverse system requirements
Up to 15:1 TDR (turndown ratio)
ASME H-stamped; CSA, AHRI & SCAQMD certified for safety, efficiency, and low NOx compliance
High-altitude certification up to 10,100 ft
Smart controls with 10.1" color touch display with built-in Wi-Fi connectivity
Cascade up to 8 units for redundancy and capacity (with sequencing to balance run hours)
Common venting for up to 4 units to reduce penetrations and simplify venting
Compact footprint with front, side & top access for easier service in tight rooms
Proven controls and technology in boiler capacity up to 1 million BTU/h
Standardized connections for vent, gas, and water lines
NG to LP field convertible and dual Venturi for consistent air-to-gas ratio

規格

Model NFB700-500C | NFB700-600C | NFB700-800C | NFB700-1000C
Heating Capacity 40-499MBH | 40-599MBH | 66-799MBH | 66-999MBH
Thermal Efficiency 97.5%
Installation Type Indoor floor-standing
Width 28.3" | 28.3" | 28.3" | 28.3"
Height 72.1" | 72.1" | 73.3" | 73.3"
Depth 31" | 31" | 33" | 33"
Weight 551 lb | 551 lb | 728 lb | 728 lb
Water Pressure Min 12 psi
Water Pressure Max 160 psi
Cold Water Inlet Connection Size 2" | 2" | 2.5" | 2.5"
Gas Supply Connection Type NPT
Gas Supply Connection Size 1"
Voltage 120 V AC, 60 Hz
Venting Type Forced Draft Direct Vent

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