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Black+Decker BD-36-DWH User Manual

Black+Decker BD-36-DWH
60 pages
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www.bdwaterheaters.com
Electric Tankless Water Heaters
Model
BD-36-DWH
118
º
F
temp
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Black+Decker BD-36-DWH Specifications

General IconGeneral
BrandBlack+Decker
ModelBD-36-DWH
CategoryWater Heater
LanguageEnglish

Summary

Safety Guidelines Overview

Safety Alert Symbols and Words

Defines safety alert symbols and words used in the manual for hazard communication.

General Warning for Manual Reading

Emphasizes reading the entire manual before installation and use to avoid injury or voiding warranty.

California Proposition 65 Warning

Alerts to potential cancer and reproductive harm risks as required by California law.

Detailed Safety Instructions

Installation and Operation Safety

Provides comprehensive safety instructions for installation, use, and electrical panel connections.

Product Usage and Environmental Precautions

Specifies intended use, indoor placement, and protection from elements like sunlight and moisture.

Product Overview

Advanced Features and Operation

Highlights advanced sensors, temperature modulation, and energy savings of the tankless system.

Water Temperature Safety Advisory

Warns about burn risks from high temperatures and the importance of checking water before use.

Installation Location Criteria

Scald Risk at Different Temperatures

Details the time-temperature relationship for scald risk, especially for vulnerable users.

Indoor Installation and Freezing Risks

Specifies indoor use only and risks associated with freezing temperatures damaging the unit.

Accessibility and Safety Placement

Guides on placing the unit for accessibility and keeping it out of reach of children.

Environmental and Liquid Exposure Risks

Warns against installing near humidity, dust, liquids, or potential leaks from other sources.

Leakage Mitigation Measures

Recommends drip pans or leak detectors for areas prone to leakage damage.

Product Dimensions and Connections

Lists the physical specifications including item number, dimensions, weight, and water connections.

Flammable Material Proximity Warning

Prohibits storing flammable materials like gasoline near the water heater due to fire risk.

Mounting and Installation Guidance

Secure Mounting and Leveling

Details requirements for securing the unit with screws and ensuring it is level.

Unit Orientation and Obstruction Avoidance

Specifies upright installation, correct connection orientation, and avoiding electrical boxes.

Safe Clearance from Flammables

Reinforces keeping flammable materials at a safe distance from the heater and outlet pipe.

Child Safety and Tamper Prevention

Ensures the unit and pipes are secured and out of children's reach to prevent tampering.

Upper Floor Installation Requirements

Mentions code compliance and leak prevention measures for attic installations.

Mounting Procedure Steps

Outlines steps for removing the cover, mounting the unit, and checking levelness.

Plumbing Requirements and Safety

Code Compliance and Plumber Consultation

Stresses adherence to local plumbing codes and consulting a qualified plumber.

Soldering Near Unit Warning

Warns against soldering pipes while the unit is connected to prevent flow sensor damage and voiding warranty.

Pressure Relief Valve Recommendations

Discusses T&P valve usage, requirements, and installation in specific areas.

Piping Pressure and Material Standards

Details maximum water pressure, piping ratings, and pressure reduction valve needs.

Minimum Water Flow Activation

Specifies the minimum flow rate required for the unit to activate the heating elements.

Flexible Hose Use and Connection Tightening

Advises using flexible hoses and careful tightening of connections to prevent unit damage.

Plumbing Installation Procedure

Cold Water Line Flushing

Instructs to thoroughly flush the cold supply line to remove debris before installation.

Connecting Water Inlet and Outlet

Details how to connect the hot water outlet and cold water inlet lines, including booster use.

Air Purging for Safe Operation

Explains the crucial step of purging air from water lines before powering the unit to prevent element damage.

Post-Installation Leak Check

Advises inspecting all connections for leaks after plumbing installation is complete.

Plumbing Specifications Summary

Lists key plumbing specifications like minimum flow, working pressure, and connections.

Electrical Requirements and Safety

Electrical Code Compliance

Emphasizes installing in accordance with national, state, and local electrical codes, consulting professionals.

Crucial Power Shut-off for Safety

Warns that power must be shut off at the breaker before any installation or service work.

Wiring and Circuit Protection Standards

States that wiring and circuit protection must comply with NEC/CEC, with specific sizing requirements.

Home Electrical Capacity Check

Ensures the home's electrical system can handle the heater's maximum amperage load.

Wiring Configuration for 36kW Model

Notes that the 36kW heater requires three sets of wire and ground.

Electrical Installation Procedure

Connecting Wires to Breaker and Unit

Details connecting power cables from the breaker to the unit's terminal block.

Importance of Ground Conductor

Highlights the requirement for a ground conductor for the incoming circuit.

Double-Checking Electrical Connections

Stresses verifying correct wire gauge, tight connections, and proper grounding.

Powering On After Air Purge

Explains restoring power after ensuring air is purged from water lines.

Ensuring Correct Wire Connections

Warns that incorrect wiring can lead to improper operation even if the unit powers on.

Electrical Specifications and Wiring Diagram

Heater Input Specifications Table

Provides a table detailing kW, Max Amps, Required Breaker, and Wire Size for the model.

Power Rate Voltage and Wattage

Lists the wattage for different input voltages (240V, 220V, 208V).

Wiring Diagram for BD-36-DWH

Illustrates the complete wiring configuration for the BD-36-DWH model.

Ground Wire Specification Detail

Clarifies the requirement for 10 AWG ground wire for each 240V circuit.

Flow Rate and Operation

Flow Rate vs. Temperature Rise

Presents a chart showing maximum temperature rise for various flow rates and inlet temperatures.

Understanding Tankless Operation

Explains how the tankless system works on demand, contrasting it with tank heaters and highlighting energy savings.

Demand Sensing and Heating Elements

Describes how the flow sensor activates heating elements and monitors temperatures for precise heating.

Flow Rate Limits and Performance

Discusses the impact of exceeding the maximum flow rate on the heater's ability to heat water.

Cold Water Mixing for Comfort

Advises on mixing cold water for comfortable temperatures and adjusting faucet settings.

Inlet Water Temperature Influence

Explains how seasonal changes in inlet water temperature can affect hot water supply.

Water Quality Impact on Heater

Discusses how water quality can affect the heater and the need for treatment in hard water areas.

Care and Maintenance Procedures

Recommended Water Quality Levels

Provides a chart with recommended levels for various water quality parameters like pH, TDS, and hardness.

Periodic Inspections and Damage Checks

Recommends regular checks for damage, cracks, or leaks and prompt repair.

Scale Buildup Prevention and Descaling

Explains scale buildup at higher temperatures and the use of descaling solutions with maintenance valves.

Pre-filter Cleaning Schedule

Advises cleaning the inlet water pre-filter every six months to remove debris.

Maintenance Safety Protocol

Crucial steps: shut off power, perform maintenance, and purge air before restoring power to prevent damage.

User Interface and Temperature Control

Initial System Startup Procedure

Outlines steps for starting the system for the first time and adjusting temperature.

Power Button Functionality

Describes how to turn the unit display and heating elements on and off using the power button.

Setting the Output Water Temperature

Guides users on how to set the desired output water temperature using the interface.

Temperature Adjustment Buttons

Explains the function of the up and down arrow buttons for temperature adjustment.

Adjustable Temperature Range

Details the settable temperature range from 86°F (30°C) to 140°F (60°C).

Recommended Temperature Settings

Suggests comfortable ranges for bathing and showering, and the optimal 118°F setting.

Caution Against High Temperature Settings

Warns that higher settings increase scalding risk and scale buildup, advising against them.

Freezing Temperature Protection

Preventing Damage from Freezing

Provides instructions to protect the heater from freezing by allowing low water flow without heating.

Warning on Frozen Unit Operation

Advises not to operate the unit if freezing is suspected, as it can cause un-warrantied damage.

Unit Component Identification Guide

Identifies key components of the unit's front interface, including buttons and connections.

Troubleshooting Guide

Issue: No Hot Water, Display Off

Addresses power outages, faulty wiring, or incorrect breaker settings causing no display.

Issue: No Hot Water, Display On

Covers causes like insufficient flow rate, blocked filters, or the need to reset the unit.

Issue: Water Heated, Not Hot Enough (Internal)

Suggests potential internal part failure for insufficient heating and advises contacting support.

Issue: Water Heated, Not Hot Enough (Flow/Voltage/Wiring)

Explains how flow rate, low voltage, or crossed wires can reduce heating capacity.

Issue: Water Heated, Not Hot Enough (Settings/Pressure)

Covers adjusting temperature settings, checking shutoff valves, and water pressure.

Issue: Water Heated, Not Hot Enough (Mixing/Loss)

Addresses excessive cold water mixing or thermal loss in long pipe runs.

Troubleshooting Common Issues (Continued)

Issue: Water Heated, Not Hot Enough (Voltage Compensation)

Explains voltage impact on display readings and how to compensate by adjusting settings.

Issue: Water Too Hot (Flow/Setting)

Advises increasing outlet flow rate or lowering the temperature setting.

Issue: Water Too Hot (Faucet/Internal)

Suggests checking faucet settings or potential internal part failure if faucet temperature is too high.

Issue: Heater Shuts Off During Use

Troubleshoots power outages, faulty wiring, or potential blockages causing the heater to shut off.

Issue: Water Stops Flowing / Varies

Addresses causes like blocked pipes, low water pressure, or obstructions in the supply line.

Resetting the Water Heater Unit

Critical Warning Before Resetting

Reiterates the warning to shut off power before attempting to reset the unit to avoid serious injury or death.

Procedure for Resetting Buttons

Guides users on locating and pressing the reset buttons to reset the unit.

Troubleshooting Frequent Resets

Advises contacting customer service if the unit requires frequent resetting.

Limited Warranty Information

Service, Repair, and Return Procedures

Outlines instructions for obtaining service, repairs, and returning the product.

Warranty Coverage Terms

Details the warranty period for defects in workmanship, material, and leakage.

Liability Limitations and Exclusions

Clarifies manufacturer's liability limits and exclusions for labor, incidental, or consequential expenses.

Conditions That Void Warranty

Lists specific conditions under which the warranty becomes void, such as improper installation or servicing.

Brand Trademarks and Contact Details

Provides information on brand trademarks, contact phone numbers, email, and importer details.

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