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Resumen del manual
AUTO RESET HIGH LIMIT 54 LOW WATER CUT OFF (OPTIONAL) The low water cut off automatically shuts down the burner whenever water level drops below the level of the sensing probe. A 3 second time delay prevents premature lockout due to temporary conditions such as power fluctuations or air pockets. LOW WATER CUT OFF HIGH AND LOW GAS PRESSURE SWITCHES - MANUAL RESET The low gas pressure switch mounts upstream of the gas pressure regulator to ensure that sufficient gas pressure is present for proper regulator performance. The low gas pressure switch automatically shuts down the boiler if gas supply drops below the factory setting of 6" W.C. for Natural gas, and 10" W.C. for propane gas. The high gas pressure switch (optional) mounts down-stream of the gas pressure regulator. If the gas pressure regulator fails, the high gas pressure switch automatically shuts down the burner. GAS PRESSURE SWITCH 55 SECTION M: GENERAL SAFETY PRECAUTIONS To meet commercial water use needs, an external operating control for this hot water boiler is adjustable up to 210°F. However, water temperatures over 125°F can cause instant severe burns or death from scalds. The preferred starting point for setting the control for supplying general purpose hot water is 125°F. Safety and energy conservation are factors to be considered when setting the water temperature on the thermostat. The most energy efficient operation will result when the temperature setting is the lowest that satisfies the needs consistent with the application. Water temperature over 125°F can cause severe burns instantly or death from scalds. Children, disabled and elderly are at highest risk of being scalded. See instruction manual before setting temperature at water heater. Feel water before bathing or showering. Temperature limiting valves are available, see note below. Maximum water temperatures occur just after the boiler.s burner has shut off. To determine the water temperature being delivered, turn on a hot water faucet and place a thermometer in the hot water stream. The following chart details the relationship of water temperature and time with regard to scald injury and may be used as a guide in determining the safest water temperature for your applications. Temperature Time to Produce Serious Burn Temperature Time to Produce Serious Burn 120°F. More than 5 minutes 140°F. Less than 5 seconds 125°F. 1-1/2 to 2 minutes 145°F. Less than 3 seconds 130°F. About 30 seconds 150°F. About 1-1/2 seconds 135°F. About 10 seconds 155°F. About 1 second Table courtesy of The Shriners Burn Institute TIME/TEMPERATURE RELATIONSHIPS IN SCALDS The temperature of the water in the hot water boiler can be regulated by setting the temperature dial on front of the thermostat. To comply with safety regulations the thermostat was set at its lowest setting before the hot water boiler was shipped from the factory. The illustration below shows the thermostat and how to adjust the water temperature. To adjust the water temperature, insert a small straight screwdriver into slotted screw in hole in front of thermostat and turn wheel to desired setting. Adjustment Screw - Hotter water Increases the risk of SCALDING! CAUTION!! There is a Hot Water SCALD Potential if the tank thermostat is set too high. NOTE: When this hot water boiler is supplying general purpose hot water requirements for use by individuals, a thermostatically controlled mixing valve for reducing point of use water temperature is recommended to reduce the risk of scald injury. Contact a licensed plumber or the local plumbing authority for further information. 56 SECTION N: PRE-START-UP FILL THE SYSTEM: 1. Close manual and automatic air vents and drain cock. 2. Fill to correct system pressure. Correct pressure will vary with each application. 3. Open automatic air vent two turns. 4. Slowly feed water to boiler. 5. Starting on the lowest floor, open air vents one at a time until water squirts out. Close vent. 6. Repeat with remaining vents. 7. Close manual water feed valve when correct boiler pressure is reached. INSPECT VENTING SYSTEM: 1. Check all vent pipe connections and flue pipe material. 2. Ensure vent terminations are installed per code and are clear of all debris or blockage. FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. 1. This appliance does have an intermittant pilot. It is equipped with an ignition device which automatically lights the pilot. Do Not try to light the pilot or burner by hand. 2. BEFORE OPERATING, smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor. 3. WHAT TO DO IF YOU SMELL GAS • Do not try to light any appliance. • Do not touch any electrical switch; do not use any telephone in your building. • Immediately call your gas supplier from a neighbor’s telephone. Follow the gas ...
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