6
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 R reserves the right to
discontinue, change specifications or system design at any time without
notice and without incurring any obligation, whatsoever.
2 - INTRODUCTION
2.5 Designated Use
• Hot water heating boiler.
• Indoor installation.
• Closet or alcove installation.
• Direct vent boiler or single vent pipe.
•
For use with natural gas or liquefied petroleum gases
(LP/propane).
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).
• Exceed 50 psig (3.44 bar) maximum allowable working
pressure, or drop below minimum system pressure 7.25
psig (.50 bar)
• Exceed 176°F (80°C) system design temperature.
2.7
Operational Features
• Modulating: 10:1 ratio.
• Integral Dual Limit.
•
Integral Low Water Pressure Cutoff.
• Outdoor Temperature Reset.
• Heat exchanger over heat protection.
• Recommended system pressure (cold) 21.7 psig (1.5
bar)
2.8
CSD-1 Compliance
Consult authority having jurisdiction prior to installation.
Field source:
•
Manual reset low water cutoff. See Section 5-4.
• Manual Reset External High Temperature Limit.
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.
• Canada
•
Natural Gas and Propane Installation Code, CAN/CSA
B149.1.
• Canadian Electrical Code, Part I, Safety Standard for
Electrical Installations, CSA C22.1
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.
PN 240011662 Rev. H [04/30/2019]