Dunkirk H2OBT User Manual
P/N# 615000057, Rev. C [03/2015]
An ISO 9001-2008 Certified Company
ECR International, Inc.
2201 Dwyer Avenue, Utica NY 13501
web site: www.ecrinternational.com
Information and specications outlined in this manual in effect at the time of printing of
this manual. ECR International reserves the right to discontinue, change specications
or system design at any time without notice and without incurring any obligation,
whatsoever.
Conforms to UL STD 174
Certied to CAN/CSA STD C22.2 No. 110-94
22, 40, 60, 80, 115 Gallon
2 = 2 inch NPT Pipe Connections
112 = 1½ inch NPT Pipe Connections
114 = 1¼ inch NPT Pipe Connections
WC = With Coil
H2O
HYDRONIC BUFFER
TANKS
INSTALLATION, OPERATION &
MAINTENANCE MANUAL
2
H
2
OBT22114
H
2
OBT402
H
2
OBT40112
H
2
OBT40114
H
2
OBT402WC
H
2
OBT40112WC
H
2
OBT40114WC
H
2
OBT602
H
2
OBT60112
H
2
OBT60114
H
2
OBT602WC
H
2
OBT60112WC
H
2
OBT60114WC
H
2
OBT802
H
2
OBT80112
H
2
OBT80114
H
2
OBT802WC
H
2
OBT80112WC
H
2
OBT80114WC
H
2
OBT1152
H
2
OBT115112
H
2
0BT115114
H
2
OBT1152WC
H
2
OBT115112WC
H
2
OBT115114WC
MODELS
DANGER
!
Hazard Denitions
The following dened terms are used throughout this manual to bring attention to the presence
of hazards or various risk levels or to important information concerning the life of the product.
Indicates a presence of hazards that WILL cause severe personal injury,
death or substantial property damage.
WARNING
!
CAUTION
!
Indicates a presence of hazards that CAN cause severe personal injury,
death or substantial property damage.
Indicates a presence of hazards that will or can cause minor
personal injury, or property damage.
NOTICE
Indicates special instructions on installation, operation or
maintenance that are important but not related to personal injury
or property damage.
SAVE THESE INSTRUCTIONS
3
I. General Information
IMPORTANT INFORMATION – READ CAREFULLY
NOTE: The equipment shall be installed in accordance with those installation regulations required in the area
where the installation is to be made. These regulations shall be carefully followed in all cases. Authorities
having jurisdiction shall be consulted before installations are made.
All wiring on water heaters shall be in accordance with the National Electrical Code and/or local regulations.
WARNING
!
Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal
injury, or loss of life. Read and understand the entire manual before attempting installation, start-up,
operation, or service. Installation and service must be performed only by an experienced, skilled installer or
service agency.
This water heater contains very hot water under high pressure. Do not unscrew any pipe ttings or attempt to
disconnect any components of this water heater without positively assuring that the water is cool and has no
pressure. Always wear protective clothing and equipment when installing, starting up or servicing this water
heater to prevent scalding injuries. Do not rely on the pressure and temperature gauges to determine the
temperature and pressure of the water heater. This water heater contains components that become very hot
when the boiler is operating. Do not touch any components unless they are cool.
Failure to follow all instructions in the proper order can cause personal injury or death. Read all instructions,
including all those contained in component manufacturers’ manuals before installing, starting up, operating,
maintaining, or servicing the water heater.
CAUTION
!
To reduce the risk of excessive pressures and temperatures in this tank, install pressure protective equipment
required by local codes but no less than a pressure relief valve certied by a nationally recognized testing
laboratory that maintains periodic inspection of production of listed equipment or materials, as meeting the
requirements for Relief Valves and Automatic Shutoff Devices for Hot Water Supply Systems, ANSI Z21.22latest edition. This valve must be marked with a maximum set pressure not to exceed the marked working
pressure of the hydronic system.
The pressure of the heat transfer medium must be limited to a maximum of 150 psig by an approved safety
or relief valve.
DANGER
!
DO NOT store or use gasoline or other ammable vapors or liquids in the vicinity of this or any other
appliance.
If you smell gas vapors, DO NOT try to operate any appliance - DO NOT touch any electrical switch or use
any phone in the building. Immediately, call the gas supplier from a remote located phone. Follow the gas
supplier’s instructions or if the supplier is unavailable, contact the re department.
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