INSTALLATION
Required Ability
Installation and service of this boiler requires ability equivalent to that of a qualified agency (page 2) in the field involved. Plumbing and electrical work is required.
General
The installation must conform with these instructions and the local code authority having jurisdiction and the requirements of the power company. In the absence of code requirements, follow
Do NOT test electrical system before boiler is filled with water, follow the START UP procedure in the OPERATION section of this manual.
The principal components of the boiler are identified in the Features and Components illustration on page 8.
Boilers are usually placed in a series with the heating system on the outlet side of the circulating pump. The boiler piping should include inlet and outlet water valves to permit maintenance and service work to be performed without disturbing the rest of the system.
Detailed system installation drawings are normally provided by the equipment purchaser or system designer.
Pressure Relief Valve
An ASME rated pressure relief valve is furnished with the boiler. A fitting for the relief valve is provided in the top of the boiler. Never operate the heating elements without being certain the boiler is filled with water and a properly sized pressure relief valve is installed in the relief valve opening provided.
The pressure rating of the relief valve should be equal to or less than the rated pressure capacity of any component in the system including the boiler. Should the valve need to be replaced, call the toll free phone number listed on the back of this manual for further technical assistance.
A discharge pipe from the relief valve should terminate at an adequate floor drain. Do not thread, plug, or cap the end of the drain line.
The Discharge Pipe:
•Shall not be smaller in size than the outlet pipe size of the valve, or have any reducing couplings or other restrictions.
•Shall not be plugged or blocked.
•Shall not be exposed to freezing temperatures.
•Shall be of material listed for hot water distribution.
•Shall be installed so as to allow complete drainage of both the relief valve and the discharge pipe.
•Must terminate a maximum of six inches above a floor drain or external to the building. In cold climates, it is recommended that the discharge pipe be terminated at an adequate drain inside the building.
•Shall not have any valve or other obstruction between the relief valve and the drain.
Once the boiler is installed and filled with water and the system is pressurized, manually test the operation of the pressure relief valve. See the maintenance section of this manual forinstructions.
WATER LINE CONNECTIONS
The boiler may be installed by itself, or with a separate storage tank, on both single and
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