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Black & Decker BD-29-DWH Manual
Also see for BD-18-DWH: Manual
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7Recommended clearances: 12” (304.8mm) above and below the heater6” (152.4mm) in front of and to the sides of the heaterCAUTION: Please keep any flammable materials at least 24” (609.6mm) away from the waterheater and hot water outlet pipe.5. Plumbing Requirements and Precautions• Please follow all plumbing instructions carefully. This product must be installed in accordancewith all national, state, provincial, and local plumbing codes. We recommend consulting withyour municipality or a qualified plumber if you have questions relating to plumbing codes foryour area prior to installing.• The plumbing installation must be completed before the electrical installation.• DO NOT solder any pipe with the unit connected to the pipe. Theheat from soldering may cause damage to the flow sensor. Doing sowill void the warranty.• The use of a temperature pressure relief valve (T&P) is not required formost installations because the tankless water heater does not use astorage tank. UL Standard 499 does not require that a pressure reliefvalve is used, although it may be needed to meet installation codes inyour area. In such cases, the pressure relief valve should be installedin accordance with local codes. It is important to ensure that the unitis operating correctly, and that air is purged from the valve prior to installing the water heater.• A T&P valve is recommended for added safety when connecting to plumbing rated Metal,Flex or High-Temperature CPVC piping.NOTE: A pressure relief valve is required for installations in the Commonwealth ofMassachusetts and State of Kentucky. Please check your local installation codesfor any special requirements.• The plumbing installation requires piping that can withstand pressure up to 8 BAR.• The maximum operating water pressure for this unit is 150PSI / 10BAR. Residential plumbingsystems with unstable pressure or pressure above 5 BAR require the application of a pressurereduction valve set to 4-5 BAR for optimal performance.• The water supply flow rate must be at least 0.5 Gallons per Minute (GPM) to ensure properoperation.• Flexible water hoses are recommended to be used with your water heater when installingyour water heater. When connecting the inlet water pipe to the unit, use a wrench to hold theunit’s connection, and another wrench to tighten so that the flow sensor on the unit will notbe loosened or damaged. Do not over-tighten the water inlet and outlet connections to avoidsevere internal damage to the water heater.Fig. 7Do not solder anypiping to the unit’sConnection points |
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