Burning Equipment (NFPA 31)” (as applicable), local codes and the manufacturer’s instructions. The burner should be installed only by a qualified
Oil Supply Connections
All aspects of oil tank location and installation, tank size, oil piping supply and burners, including any fittings, valves, fil- ters or any fuel handling components must comply with:
•“Installation Code for Oil Burning Equipment
•“Standard for the Installation of
•Local codes and regulations.
•Information provided with burner and fuel pump.
Install the oil supply tank with fill and vent lines of adequate capacity as shown in Figure 4. When an appliance using a float valve between the supply tank and the burner is con- nected to a supply tank over 9 Canadian gallons capacity, a valve operated by a fusible link, shall be installed in the fuel line adjacent to, and upstream from, the float valve. If any part of fuel oil tank is above level of burner, an
Teflon® tape as an oil pipe sealant. It can cause valves to fail creating hazards. Do not use compression fittings. Underground pipe must be run in a casing to prevent oil leaking into ground or under floor. Check local codes for more information.
Water Supply Connections
Pipes and fittings should be installed in as shown in the installation drawing (Figures 7 & 8). Install a
NOTE: Rear and Combination flue heaters are equipped with a combination cold water inlet/drain valve.
Temperature and Pressure (T&P) Relief Valve
To reduce the risk of excessive pressures and temperatures in this water heater, install temperature and pressure pro- tective equipment as required by local codes. It should be no less than a combination Temperature and Pressure (T&P) Relief Valve certified by a nationally recognized testing lab- oratory that maintains periodic inspection of production of listed equipment or materials, as meeting the requirements of the latest edition of ANSI Z21.22: Requirements for
Relief Valves and Automatic Gas
the discharge line:
•must not be smaller than the outlet pipe size of the relief valve,
•opening must not be threaded, blocked, plugged, capped, reduced in size or restricted in any manner under any circumstances,
•must be made of material capable of withstanding 100°C (212°F) without distortion,
•must be installed so as to allow complete drainage of both the temperature and pressure relief valve and dis- charge line,
•must terminate near a floor drain or other suitable loca- tion not subject to blocking or freezing, and
•must exit only within 150mm (6 in.) above, or at any dis- tance below the structural floor.
NOTE: Rear and Combination flue units must be fitted with a T&P Relief Valve WATTS type
Failure to install and maintain a new, properly listed temperature and pressure relief valve will release the manufacturer from any claims which may result from excessive temperature or water pressure.
Closed Water Systems
During the heating cycle of the water heater the water expands creating a pressure
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