Introduction; Requirements For Commonwealth Of Massachusetts; Designated Use; The Unit Must Not - Dunkirk DCBF-100 Manual

2 - INTRODUCTION

2.1 Installation shall conform to requirements of
authority having jurisdiction or in absence of such
requirements:
UNITED STATES
• National Fuel Gas Code, ANSI Z223.1/NFPA 54
• National Electrical Code, NFPA 70.
2. 2 Where required by authority having jurisdiction,
installation shall conform to Standard for Controls and
Safety Devices for Automatically Fired Boilers, ANSI/
ASME CSD-1.
Additional manual reset low water cutoff may be
required.
2.3 Requirements for Commonwealth of
Massachusetts:
Boiler installation must conform to Commonwealth of
Massachusetts code 248 CMR which includes but is not
limited to:
Installation by licensed plumber or gas fitter.
2.4 Manufacturer recommends use of Carbon
Monoxide monitor may be requirement of local
jurisdiction.

2.5 Designated Use

• DCCF-115, DCCF-150 and DCCF-205 provide
both central heating and domestic hot water.
• DCBF-100, DCBF-125 and DCBF-165 central
heating only.
• Indoor installation.
• Closet or alcove installation. Direct Vent Boiler
does not require air vents when installed in closet
or room.
• Direct vent boiler.
• For use with natural gas or liquefied petroleum
gases (LP/propane).
Check our website frequently for updates: www.ecrinternational.com
Information and specifications outlined in this manual in effect at the
time of printing of this manual. ECR International reserves the right to
discontinue, change specifications or system design at any time without
notice and without incurring any obligation, whatsoever.
2 - INTRODUCTION

2.6 The unit MUST NOT:

• Directly heat potable water. Indirect heating is
acceptable.
• Heat water with non-hydronic heating system
chemicals present (example, swimming pool
.
water).
• Toxic chemicals, such as those used for boiler
treatment, shall not be introduced into potable
water used for space heating.
• Exceed 43 psig (2.96 bar) maximum system
pressure, or drop below minimum system
pressure 7.25 psig (.50 bar)
• Exceed 176°F (80°C) system design temperature.

2.7 Operational Features

• DCBF-100 Modulates input to provide CH
Turndown 5.6:1
• DCCF-115 Modulates input to provide CH
Turndown 5.6:1, DHW Turndown 6.9:1
• DCBF-125 Modulates input to provide CH
Turndown 5.7:1
• DCCF-150 Modulates input to provide CH
Turndown 5.7:1, DHW Turndown 7:1
• DCBF-165 Modulates input to provide CH
Turndown 5.5:1
• DCCF-205 Modulates input to provide CH
Turndown 5.5:1, DHW turndown 7:1
• Maximum output available for domestic hot
water:
DCCF-115 - 105,500 btu/hr (33.8 kW) capable of
providing 2.5 (U.S.) gpm (11.4 liters/min) with a
temperature rise of 70°F/39°C.
DCCF-150 - 136,000 btu/h (40 kW), capable of
providing 3.5 (U.S.) gpm (13.2 liters/min) with a
temperature rise of 70°F/39°C.
DCCF-205 - 180,000 btu/h (53 kW), capable of
providing 5.0 (U.S.) gpm (18.9 liters/min) with
temperature rise of 70°F/39°C.
• Integral Low Water Pressure Cutoff.
• Optional Outdoor Temperature Reset.
• Heat exchanger over heat protection.
• Boiler operating at maximum operating
temperature, providing heat, pressure gauge
should not indicate more than 26.11 psi /
1.80 bar. If reading exceeds this figure larger
expansion tank is required.
8
240013375 REV A, [07/01/2021]