Hubbell STH Warning / Caution, Section Ii - Installation And Operation, Water Heater Placement

Models: STH ST

1 31
Download 31 pages 26.51 Kb
Page 13
Image 13

SECTION II – INSTALLATION AND OPERATION

WARNING / CAUTION

DO NOT TURN ON THE STEAM SUPPLY to this unit until heater is completely filled with water and all air has been released. If the heater is NOT filled with water when the steam supply is turned on, damage to the heating coil may result.

For protection against excessive pressures and temperatures, local codes require the installation of a temperature-and-pressure (T&P) relief valve certified by a nationally recognized laboratory that maintains periodic inspection of production of listed equipment of materials, as meeting the requirements for Relief Valves and Automatic Gas Shutoff for Hot Water Supply Systems. ANSI Z21.22-1971. THE CUSTOMER IS RESPONSIBLE TO PROTECT PROPERTY AND PERSONNEL FROM HARM WHEN THE VALVE FUNCTIONS.

All water heaters have a risk of leakage at some unpredictable time. IT IS THE CUSTOMER'S RESPONSIBILITY TO PROVIDE A CATCH PAN OR OTHER ADEQUATE MEANS, SO THAT THE RESULTANT FLOW OF WATER WILL NOT DAMAGE PROPERTY.

If unit is painted or insulated on the job site, care should be taken not to paint or insulate over the A.S.M.E. nameplate. This plate should be accessible and legible at all times to inspectors, and information from this plate must be used when ordering parts from the factory.

The tank should be fully drained in the event the steam has been turned off and if there is danger of freezing. If tank is drained and to be left empty for more than 8 hours, at least 2-inches of water should be left in the bottom of cement lined tanks to prevent lining from drying and cracking.

WATER HEATER PLACEMENT

1.Adequate space should be provided for removal of heating element.

2.Unit should be level to permit proper drainage

PIPING INSTALLATION

NOTE: The most effective means for preventing deterioration from accelerated corrosion due to galvanic and stray current is the installation of dielectric fittings/unions. The installation of these fittings is the responsibility of the installing contractor.

1.All integral components have been properly sized to meet design conditions. Piping to the unit should be sized to meet the design conditions, as dictated by good engineering practices.

2.Refer to the enclosed drawing for location of piping connection.

13

Page 13
Image 13
Hubbell STH manual Warning / Caution, Section Ii - Installation And Operation, Water Heater Placement, Piping Installation