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PROTECTING THE OVEN / STEAMER
Electric Power Requirements
The characteristics of the electric power supply must match the power requirements
specified on the Oven/Steamer product identification plate.
The plate is secured to the outside of the right-side access panel as illustrated in Figure
2-2.
Gas Supply Requirements
WARNING
NEVER EXCEED 14”/355.6 mm WATER COLUMN (1/2 psi) GAS PRESSURE.
If the gas supply pressure exceeds 14”/355.6 mm water column, a pressure
regulating valve must be installed in the gas supply plumbing to reduce the gas
pressure to less than 14”/355.6 mm water column.
• Natural gas pressure must be between 4.5”/101.6 mm -14”/355.6 mm water column.
• Propane gas supply pressure must be between 11”/304.8 mm - 14”/355.6 mm water column.
WATER QUALITY REQUIREMENTS
Cold or hot water (max. 122 °F/50 °C) for steam generator and humidifier.
WARNING
Using water not within the limits specified in this manual could void or adversely
affect the warranty coverage of the Oven/Steamer.
As with any steam generating equipment, poor water quality degrades Oven/Steamer
performance. If feed water is low in Total Dissolved Solids (TDS) and free of particulate
matter, the steam generator, heating element, and valves of the Oven/Steamer will give
years of trouble-free service with a minimum of maintenance.
In some areas, even potable tap water contains a variety of impurities that can cause
costly problems in steam generating equipment.
Of primary concern are mineral salts and other impurities which remain behind as lime or
scale deposits during the steam generating process. These deposits have caused many
components to fail, including heating elements, probes, and solenoid valves.
Of equal importance is the decrease in heat transfer efficiency caused by lime and scale
deposits. Decreased heat transfer increases water and power consumption. Use of the
in areas with poor water quality requires installation of a Steamer Gard water treatment
system or increased frequency of maintenance, cleaning, and descaling.
Check the quality of supply water before starting construction of the water supply lines.
If a water treatment system must be installed to achieve acceptable water quality, install
it before connecting the water supply lines to the Oven/Steamer.
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