NFB-301C

• 97.5% TE Industry Leading Thermal Efficiency

• Patented stainless steel fire tube heat exchanger

• 160 PSI maximum operating pressure

• Advanced controls with an intuitive 7” color display

• Up to 15:1 TDR (turndown ratio)

• BAS communication capability

• Common vent up to 4 and cascade up to 32 units

• Top & bottom piping

Tekniset tiedot

Model NFB-301C
Heating Capacity 20,000-301,000 BTU/H
Thermal Efficiency (or UEF) 0.98
Installation Type Indoor wall-hung
Width 25.1"
Height 32.8"
Depth 22.3"
Weight 243 lb.
Water Pressure Min 12 psi
Water Pressure Max 160 psi
Cold Water Inlet Connection Size 1 1/4"
Gas Supply Connection Type NPT
Gas Supply Connection Size 3/4"
Voltage 120 V
Venting Type Forced draft direct vent and non-direct vent (single pipe)

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