Westbrass DT18N

Westbrass DT18N HotMaster DigiHot Digital Instant Hot Water Tank System

User Manual

1. Product Overview

The Westbrass DT18N HotMaster DigiHot Digital Instant Hot Water Tank is designed to provide instant hot water for various kitchen needs, including cooking, beverages, and cleaning. This system delivers up to 100 cups of hot water per hour and features a digital display for precise temperature control.

Key Features:

  • Delivers 100 cups per hour of instant hot water.
  • 6 pre-selected water temperatures, adjustable from 167°F to 208°F.
  • Ultra-fast 1500-Watt heating element with 1-Watt standby power.
  • Stainless steel dry-start float and overheat protector to prevent off-tastes and odors.
  • Non-pressurized bladder system to prevent catastrophic tank failures.
  • On/off control button for vacation or downtime.
  • Designed for use with Westbrass Faucets and Hot/Cold Water dispensers.
Westbrass DT18N HotMaster DigiHot Digital Instant Hot Water Tank System

Figure 1: Front view of the Westbrass DT18N HotMaster DigiHot Digital Instant Hot Water Tank System, showing the digital display and control buttons.

2. Important Safety Information

Please read all instructions carefully before installation and use. Failure to follow these instructions may result in electric shock, fire, property damage, or personal injury.

  • DANGER: Electrical Shock or Burn Hazard. Disconnect power before servicing.
  • This appliance must be properly grounded.
  • Do not operate if the unit is damaged or leaking.
  • Ensure all plumbing connections are secure and leak-free before applying power.
  • Do not install in an area where freezing may occur.
  • Use only with potable water.
  • Keep children away from the hot water dispenser.

3. Setup and Installation

Installation should be performed by a qualified plumber or technician. Ensure all local plumbing and electrical codes are followed.

3.1 Components Included:

  • (1) Digital Hot Water Tank (Model DT18N)

3.2 Required Tools (Not Included):

  • Adjustable wrench
  • Screwdriver
  • Drill (if installing new faucet)
  • Plumber's tape
  • Water filters (recommended for optimal performance and longevity)

3.3 Installation Steps:

  1. Prepare the Installation Area: Ensure sufficient space under the sink for the tank (dimensions: 10.25 x 10.25 x 13 inches) and access for plumbing and electrical connections.
  2. Mount the Tank: Place the tank in a stable, upright position under the sink.
  3. Connect Water Supply: Connect the cold water supply line to the inlet of the tank. It is highly recommended to install water filters in line with the cold water supply to the tank to ensure proper operation and extend the life of the unit.
  4. Connect to Dispenser Faucet: Connect the hot water outlet from the tank to your Westbrass hot water dispenser faucet. Ensure all connections are tight and leak-free.
  5. Fill the Tank: Before plugging in the unit, open the hot water dispenser faucet and allow water to flow until a steady stream is achieved, indicating the tank is full. Close the faucet.
  6. Connect Power: Plug the unit into a properly grounded 120V electrical outlet.
Westbrass DT18N HotMaster DigiHot Digital Instant Hot Water Tank System Dimensions

Figure 2: Technical drawing showing dimensions and 3/8" NPSM male fittings for the Westbrass DT18N HotMaster Digital Tank Unit.

4. Operating Instructions

The HotMaster DigiHot system features an intuitive digital display for easy operation.

4.1 Initial Startup:

  1. After connecting power, the digital display will illuminate.
  2. The unit will begin heating water to the default temperature setting. The display will show the current water temperature.
  3. Allow approximately 10-15 minutes for the water to reach the set temperature. The "HEATING" indicator will turn off when the water is ready.

4.2 Adjusting Temperature:

  • Use the + and - buttons on the digital display to increase or decrease the desired water temperature.
  • The temperature can be set between 167°F and 208°F.
  • The unit will automatically adjust to the new setting.

4.3 On/Off Control:

  • Press the Power button (Power button icon) to turn the heating function on or off.
  • Turning the unit off is recommended for extended periods of non-use, such as vacations.
Westbrass DT18N HotMaster DigiHot Digital Instant Hot Water Tank System Display

Figure 3: Close-up of the digital display on the HotMaster DigiHot, showing temperature setting and control buttons.

5. Maintenance

Regular maintenance ensures optimal performance and longevity of your HotMaster DigiHot system.

5.1 Cleaning:

  • Wipe the exterior of the tank with a clean, damp cloth. Do not use abrasive cleaners or solvents.
  • Ensure the unit is unplugged before cleaning.

5.2 Water Filter Replacement:

  • If water filters are installed, replace them according to the filter manufacturer's recommendations.
  • Regular filter replacement helps prevent mineral buildup and maintains water quality.

5.3 Descaling (If Necessary):

  • In areas with hard water, mineral deposits may accumulate over time. If you notice reduced flow or heating efficiency, descaling may be required.
  • Consult a qualified plumber for descaling procedures to avoid damaging the unit.

6. Troubleshooting

Before contacting customer support, please review the following common issues and solutions:

ProblemPossible CauseSolution
No hot water / Unit not heating
  • No power to the unit.
  • Unit is turned off.
  • Overheat protector tripped.
  • Tank not filled with water.
  • Check power outlet and circuit breaker.
  • Press the Power button to turn the unit on.
  • Unplug the unit, wait 5 minutes, then plug back in. If issue persists, contact support.
  • Ensure water supply is on and tank is full (refer to Setup).
Water is not hot enough
  • Temperature setting is too low.
  • Heavy usage exceeding recovery rate.
  • Adjust temperature setting using the + button.
  • Allow time for the unit to reheat between uses.
Unit is leaking
  • Loose plumbing connections.
  • Internal component failure.
  • Immediately disconnect power and turn off water supply. Check and tighten all plumbing connections.
  • If leaking persists, contact customer support. Do not attempt internal repairs.
Water has an unusual taste or odor
  • New unit odor (temporary).
  • Water quality issues / Filter needs replacement.
  • Run several gallons of hot water through the dispenser to flush the system.
  • Replace water filters if installed. Consider installing filters if not already present.

7. Specifications

FeatureDetail
Model NameHotMaster DigiHot Digital Instant Hot Water Tank System for Dispenser Faucets
Model NumberDT18N
BrandWestbrass
Dimensions (L x W x H)10.25 x 10.25 x 13 inches
Item Weight9.79 pounds
Capacity100 Cups per hour (approx. 2.5 Quarts / 2.3 Liters)
Voltage120V
Power1500 Watts
Temperature Range167°F - 208°F
MaterialStainless Steel
Special FeaturesOverheat Protection, Temperature Control
Installation MethodFreestanding (under sink)

8. Warranty Information

The Westbrass DT18N HotMaster DigiHot Digital Instant Hot Water Tank System comes with a 1-year limited warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.

For full warranty details and terms, please refer to the official Westbrass warranty documentation or contact Westbrass customer support.

9. Customer Support

If you have any questions, require technical assistance, or need to report an issue with your Westbrass HotMaster DigiHot system, please contact Westbrass customer support.

  • Manufacturer: Westbrass
  • Website: Visit the Westbrass Store on Amazon (for product information)
  • Phone: 800-39-BRASS (800-392-7277)
  • Address: 2429 E. Olympic Blvd., Los Angeles, CA 90021

Please have your model number (DT18N) and date of purchase available when contacting support.

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