12
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.
3.5 Designated Use
• DCCF
-150 and-205 provide both central heating and
domestic hot water.
• 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).
3.6 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.
3.7 Operational Features
• 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
• -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-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.
-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.
3 - Introduction
3.1
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.
3.2
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.
3.3 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.
3.4 Manufacturer recommends use of Carbon
Monoxide monitor may be requirement of local
jurisdiction.
3 - INTRODUCTION
240012879 REV A, [01/31/2020]
Summary of Contents for Dunkirk DCBF-125
Page 63: ...61 A 1 MODELS 125 Heat Only APPENDIX A WIRING DIAGRAMS 240012879 REV A 01 31 2020...
Page 64: ...62 APPENDIX A WIRING DIAGRAMS A 2 MODELS 165 Heat Only 240012879 REV A 01 31 2020...
Page 65: ...63 A 2 MODELS 150 Combi APPENDIX A WIRING DIAGRAMS 240012879 REV A 01 31 2020...
Page 66: ...64 A 4 MODELS 205 Combi APPENDIX A WIRING DIAGRAMS 240012879 REV A 01 31 2020...
Page 67: ...65 NOTES 240012879 REV A 01 31 2020...
Page 68: ...66 NOTES 240012879 REV A 01 31 2020...
Page 99: ...29 MODEL 150F Combi 150F FLOOR STANDING COMBI WIRING DIAGRAM PN 240012875 REV A 01 31 2020...
Page 101: ...31 205F FLOOR STANDING COMBI WIRING DIAGRAM MODEL 205F Combi PN 240012875 REV A 01 31 2020...
Page 106: ...36 Low Water Cutoff Detail LOW WATER CUTOFF NO NO YES PN 240012875 REV A 01 31 2020...
Page 114: ...44 NOTES PN 240012875 REV A 01 31 2020...
