Dunkirk DCBF-125 - Physical Data

4
Dimensions
Central Heating (Sealed System) 125 / 150
Heat Exchanger Max Allowable Working Pressure
50 psi [3.45 bar]
Max System Pressure
30.00 psi [2.11 bar]
Min System Pressure
7.25 psi [ 0.50 bar]
Max System temperature
176°F [80°C]
Pressure Relief Valve Setting
30.00 psi [2.11 bar]
Expansion Tank Minimum Size (pre-charge press.)
2.2 gal at 11.6 psi
[10.0 L at 0.8 bar]
Recommended System Pressure (cold)
21.7 psi [1.5 bar]
Domestic Hot Water (Sealed System)
150
Max Inlet Water Pressure 116 psi [8 bar]
Min Inlet Water Pressure 2.9 psi [ 0.2 bar]
Min DHW Flow Rate 0.55 gpm [2.50 L/min]
Max DHW Temperature 140°F [60°C]
DHW Water Content 0.05 gal [0.23 L]
SYSTEM
When boiler is operating at maximum operating temperature, providing heating with all heat emitters operating, pressure gauge

PHYSICAL DATA
DIMENSIONS
125 & 150
Height (Bottom of boiler top of safety Valve) 43.65" [1.09 m]
Overall Width with Manifold 24.70" [628 mm]
Depth 17.46" [444 mm]
Condensate Trap Connection 3/4"
NPT
System Supply 
DHW Outlet (125 Optional)
(125)

Connection
(150)

Connection
Gas Connection 
DHW (Cold Water) Inlet
(125)
NA
(150)

Connection
System Return 
Boiler Filling Connection External to Boiler
Primary Water Content 1 gal [3.60 L]
240012564 REV A, [05/15/2019]