User manual PROTANKLESS 425HNO

[. . . ] GWH 425 HNO OUTDOOR MODEL For exterior use only Electronic Ignition Suitable for heating potable water only - Not approved for space heating purposes GWH-425-HNO-N - Natural Gas GWH-425-HNO-L - Liquefied Petroleum (LP) Gas Warning: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or death. Do not store or use gasoline or other flammable vapor and liquids in the vicinity of this or any other appliance. Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. For assistance or additional information consult a qualified installer, service agency or the gas supplier. [. . . ] WARNING: Proper insulation of the water lines below the heater is required if below freezing temperatures, below 32°F, are ever anticipated. 8 716 473 148 13 Operation instructions 4 4. 1 Operation instructions For your safety read before operating your water heater Warning: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. In that case, repeatedly open and close the hot water tap in order to restart the ignition process until all the air has been purged. Turn the hot water faucet on to the minimum flow rate required to activate the heater. The automatic ignition system first ignites the safety pilot burner which then ignites the main burner in about 4 seconds. The pilot flame will extinguish 10-30 seconds after the burners come on. The burners will remain on until the hot water tap is turned off. For maximum power, slide gas valve button all the way to the right. A. This appliance is equipped with electronic ignition for lighting the main burners. When turning the heater on, follow these instructions exactly. WHAT TO DO IF YOU SMELL GAS B Do not try to light any appliance. B Do not touch any electric switch; do not use any phone in your building. B Immediately call your gas supplier from a neighbors phone. Follow the gas supplier's instructions. B If you cannot reach your gas supplier, call the fire department. Use only your hand to turn the on/off control switch. If control switch is jammed, close the gas supply and call a qualified service technician. Attempted forceful repair may result in a fire or explosion. Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water. 4. 3 To turn off appliance B Turn off the manual gas shut off valve on the supply line to the heater. B Turn power switch to the off (O) position. B Drain water lines if unit will sit for a long period of time. 4. 4 Setting the water temperature The 425 HNO has a gas control that modulates burner input in response to flow. Its purpose is to ensure that the hot water temperature will remain steady, although the water flow demand might vary. [. . . ] The Heat Exchanger If the heat exchanger fails within fifteen (15) years after the original installation and operation, BBTNA will furnish a replacement heat exchanger. However, if the water heater is installed in other than a single family dwelling, this heat exchanger warranty is limited to two (2) years from date of original installation and operation. Exceptions This warranty will not apply: · 1. to defects or malfunctions resulting from failure to properly install, operate or maintain the unit in accordance with the printed instructions provided; · 2. [. . . ]