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AHS-21D
AHS-21D
Brushed Stainless Steel American Heat Tankless using 21kW at 240 Volts to a Max of 100 AmpsStainless Steel Water Carrying Parts set the American Heat as a technological marvel Red relates to the warmer incoming water found in southern states. The American Heat Super ADK-1 single, in-tandem with other ADK units, units in parallel and use of the larger, more powerful AH Model line for bigger hot water users are considerations. Orange and Green areas of this map indicate cooler incoming water. In this area you could use the Super ADK-1 units or smaller units in tandem to heat smaller amounts of water such as showers. Light blue indicates those states that have colder incoming water and should use the larger American Heat AH Models. Dark Blue represents cold water areas that require the larger AH Models and may only supply 3.0 GPM with the AH27 unit at 45 degree F incoming water. Note that more than one tankless water heater may be required depending on your hot water needs and incoming water temperature. This chart allows comparison of individual American Heat AH models based on 105 F degree hot water produced from the inlet temperature at the top of this page. This chart is a standard heat rise chart and is useful in determining the model needed by the number of gallons per minute vs the heat rise required.Installation Guide
Click to enlarge image(s)
This May Be The Last Water Heater You Ever Buy
Rated at 21 kilowatts at 240 Volts at a Max of 87.5 Amps. An optional sub-panel is available from us which is supplied with three, two pole 40 Amp breakers. The Sub-panel is normally wired to the main panel using a 100 Amp breaker and two gauge wire directly to the sub-panel. The sub-panel contains a dual40 and quad40 Amp breakers for easy hookup. Note that normally 8/2 ga. wires from each breaker leads to the tankless. This is designed to keep your installation to Code. Please check your community's electrical Codes for proper installation of your heater. We suggest using licensed, qualified individuals for all tankless water heater installations. With a one year Warranty on the replaceable heating elements, three years on the electronics and a lifetime on the water carrying parts, this may very well be, the last water heater you ever need. CSA 22.2 approved for use in Canada, ETL listed UL #834 listed and #499 UL Compliant for your safe use in the USA
Specifications
Dimensions 16" X 17" X 3.25"
Shipping Weight 22 Pounds
Body / Heat Exchange Stainless Steel
Element 3 Brass Flange / Copper / Stainless Steel
Pipe Fittings Stainless Steel 3/4" NPT
Activation Flow Rate 0.25 Gallons per Minute
Operation Pressure Min 25 PSI, Max 150 PSI
Required Wire Gauge From Main to Subpanel...if used 2 Gauge
Required Wire 8 Gauge from Breakers, Consult an Electrician
Cover Brushed Stainless Steel
Volts 240
United States ETL#834 Listed / #499 UL Compliant
Canada CSA Approval
Stand-by Heat Loss 0%
Max Power 87.5 Amp
Required Breaker 100 Amp/2pole Service Panel
Subpanel (Available for purchase from this store) Siemens 125 Amp Rated, Quad40, Dual40 Amp Breakers (Available for Purchase)
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