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Tankless Water Heaters www.americanheatus.com


The AMERICAN HEAT Electric Tankless Water Heater: How does it work The American Heat AH SERIES electric tankless water heater is a marvel of technology and engineering packaged in an intelligent, simple design. It heats water entirely on demand, only when it is needed. When a hot water faucet is turned on and the water begins to flow, a sophisticated flow sensor detects that hot water is being demanded and turns the water heater on. Instantaneously, a series of sensors gather information about the flow rate of the water and the incoming water temperature. This information is sent to a microprocessor which calculates the amount of power needed to heat the water to the temperature set point. The water flows across the internal heating elements and exits the unit at the desired temperature. The start-up process takes a couple of seconds. A convenient thermostatic control and digital display on the front of the unit allows the homeowner to select an output temperature of between 80째F and 125째F.

CHOOSING THE RIGHT PRODUCT

The sensors continue to monitor the water flow rate and incoming water temperature as long as the water is running. They send constant and continuous data to the microprocessor so power to the heating elements can be modulated in accordance with changes in incoming flow rate and temperature. If, for instance, the flow rate increases because a second demand for hot water in the home is initiated, the unit will increase its power output to maintain a consistent and precise output temperature. The tankless water heater will remain on until the hot water faucet is closed. As soon as the flow sensor detects that water has stopped flowing, the power to the unit is completely turned off. All American Heat Tankless AH SERIES Water Heaters are manufactured with the highest American quality components. Each American Heat Tankless Water Heater must pass a rigorous three phase testing and inspection process prior to shipment. SAVES ENERGY-SAVES SPACE -NEVER RUNS OUT OF HOT WATER


Single Family Residential Whole House Water Heating American HeatTankless Water Heaters make ideal replacements for whole house electric and gas water heaters for most residential applications, including houses, condos, apartments, mobile/manufactured homes, guest houses and recreational properties. For extremely demanding hot water applications, multiple heaters can often be deployed, or paired with a conventional tank in a booster configuration Multi-Family Residential Whole House Water Heating Property developers and managers, hotel and motel operators, and resort property owners can save thousands of dollars annually by implementing tankless water heating technology in their units. Furthermore, since floor space is always at a premium, the physical space saved by switching to our tankless water heater can create much needed storage or other useful space! Point-of-Use Water Heating Due to their small size, American Heat Tankless Water Heaters are well suited to point-of-use applications around the house and are ideal for providing hot water to areas of the home that are physically far away from the existing water heater. They can also serve the needs of businesses, schools, and other organizations by providing low-cost hot water for lavatories, cafeterias, and more!

Solar or Geothermal Water Heater Booster Our thermostaticallycontrolled tankless water heater makes for an ideal booster heater for existing solar or g e o t h e r m a l water heating systems. For instance, on cloudy, colder days when your solar system is unable to raise the temperature of the water to the desired temperature, our tankless system will kick in to raise the temperature to a comfortable level.

Radiant / Hydronic Heating When properly configured, our thermostatically-controlled tankless water heater can be used instead of a traditional tank-type water heater or boiler as the heat source for a radiant hot water (hydronic) heating system or "water furnace." While the energy savings are not generally as significant as they are when using a tankless for domestic hot water heating, their small size, long warranty, and simplicity can make them an excellent choice for such applications.

Business and Commercial American Heat Tankless Water Heaters can be used for a wide array of commercial water heating applications. Common applications include hairdressing salons, spas, Laundromat facilities, restaurants, lodges, hotels, etc.

Do you have an unusual application? Please feel free to contact us to discuss your project. We would be pleased to assist you in identifying whether or not a tankless solution is suitable and economical for your needs, and to advise you regarding model selection.


ADK Series ADK MODEL SELECTOR Choosing an appropriate model of electric tankless water heater for your home or business depends on 3 primary factors. 1. Incoming water temperature 2. Maximum flow rate desired 3. Electrical service INCOMING WATER TEMPERATURE The chart is designed to offer you a general model selection recommendation based on typical winter incoming water temperatures for various regions of North America. The model recommended is based on a desired maximum flow rate of about 3 gallons per minute. A more powerful model will provide higher flow rates.

Dimensions: 12 x 4 x 9 (inches) Weight: 7 lbs. Pipe fittings: Stainless steel 1/2 inch Activation flow rate: .25 gallon

MAXIMUM FLOW RATE DESIRED You should consider the maximum flow rate of hot water you really need. See chart for a few flow rate guidelines for various hot water applications in the home. Generally, a maximum flow rate of 3 GPM will be sufficient for such applications. In warmer climates, it is possible to use one of our more powerful models to run flow rates of up to 7 gallons per minute. You can achieve a comfortable output temperature suitable for one or two applications simultaneously.

TYPICAL FLOW RATES Application

Flow Rate in GPM at 60 PSI

Typical Shower

1.5 to 2.5 GPM

Typical Bath Tub Faucet

2.0 to 3.0 GPM

Bahroom Vanity sink Faucet

0.5 to 1.5 GPM

Kitchen Sink Faucet

1.0 to 2.2 GPM

Clothes Washer

1.5 to 3.0 GPM

Required Breaker Super ADK-1 Model ADK1 Model ADK2 Model ADK3 Model ADK4

one 60 AMP one 50 AMP one 40 AMP one 30 AMP one 30 AMP

Max Power 57 AMPS 47 AMPS 37 AMPS 30 AMPS 29 AMPS

AWG WIRE #6 #8 #8 #10 #10

Most people shower at a temperature of between 98째F and 104째F. The chart is based on a 220 volt input voltage and maximum flow rates are listed for various incoming water temperature levels. If your home or business has less than 240 volt power (208v), your maximum flow rate will be lower. Simply look up your incoming water temperature and desired flow rate to determine your model choice.

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17.

Water inlet Thermal safety cut-out SCR Wall screw fixings Terminal block Cable clamp Cable entry Heating elements elec-box Flow control Thermal safety cut-out Heater tank Water outlet Pressure switch assembly Ground connection Box Cover


AH Series AH MODEL SELECTOR Choosing an appropriate model of electric tankless water heater for your home or business depends on 3 primary factors. 1. Incoming water temperature 2. Maximum flow rate desired 3. Electrical service INCOMING WATER TEMPERATURE The chart is designed to offer you a general model selection recommendation based on typical winter incoming water temperatures for various regions of North America. The model recommended is based on a desired maximum flow rate of about 3 gallons per minute. A more powerful model will provide higher flow rates.

Dimensions :AH 27-21 16”x 17” x 3.25 AH 18-11 16”x 13.5 “x 3.25 Weight: 12 lbs. Pipe fittings: COPPER 3/4 inch Activation flow rate: .25 gallon

MAXIMUM FLOW RATE DESIRED You should consider the maximum flow rate of hot water you really need. See chart for a few flow rate guidelines for various hot water applications in the home. Generally, a maximum flow rate of 3 GPM will be sufficient for such applications. In warmer climates, it is possible to use one of our more powerful models to run flow rates of up to 7 gallons per minute. You can achieve a comfortable output temperature suitable for one or two applications simultaneously.

Application

Flow Rate in GPM at 60 PSI

Typical Shower

1.5 to 2.5 GPM

Typical Bath Tub Faucet

2.0 to 3.0 GPM

Bahroom Vanity sink Faucet

0.5 to 1.5 GPM

Kitchen Sink Faucet

1.0 to 2.2 GPM

Clothes Washer

1.5 to 3.0 GPM

Model AH Model AH Model AH Model AH Model AH Model AH Model AH

Required Breaker

Max Power

27 24 21 18 16 14 11

112.5 AMPS 100.0 AMPS 87.5 AMPS 75.0 AMPS 66.6 AMPS 58.3 AMPS 45.8 AMPS

one 125 AMP one 100 AMP one 100 AMP one 80 AMP one 70 AMP one 60 AMP one 50 MP

The chart below shows what models provide how much flow in which input temperature. All Models work with a 208/220/240 application. The following table is based on a 240V application: 0

0

Inlet Water Temperature

45 F

50 F

Model Super ADK-1

1.5 GPM

1.6 GPM

1.7 GPM

1.9 GPM

Model ADK-1

1.3 GPM

1.4 GPM

1.5 GPM

1.7 GPM

Model ADK-2

.7 GPM

.8 GPM

.0 GPM

Model ADK-3

.25 GPM

.4 GPM

.6 GPM

Model ADK-4

***

***

Inlet Temperature

400F

450 F

500F

Model AH27

2.8 GPM

3.1 GPM

3.3 GPM

Model AH24

2.5 GPM

2.7 GPM

3.0 GPM

Model AH21

2.3 GPM

2.5 GPM

Model AH18

1.9 GPM

Model AH16

0

0

0

0

65 F

70 F

75 F

80 F

2.1 GPM

2.4 GPM

2.7 GPM

3.2 GPM

3.8 GPM

1.9 GPM

2.0 GPM

2.3 GPM

2.7 GPM

3.0 GPM

.2 GPM

1.3 GPM

1.4 GPM

1.5 GPM

2.0 GPM

2.2 GPM

.8 GPM

1.0 GPM

1.2 GPM

1.4 GPM

1.5 GPM

1.7 GPM

***

.25 GPM

.4 GPM

.6 GPM

.8 GPM

.9 GPM

AH Models 550F 600F

650F

700F

750F

800F

3.7 GPM

4.1 GPM

4.8 GPM

5.2 GPM

6.1 GPM

7.3 GPM

3.3 GPM

3.8 GPM

4.1 GPM

4.7 GPM

5.4 GPM

6.5 GPM

2.7 GPM

3.0 GPM

3.3 GPM

3.8 GPM

4.3 GPM

5.0 GPM

6.0 GPM

2.0 GPM

2.2 GPM

2.4 GPM

2.7 GPM

3.1 GPM

3.5 GPM

4.1 GPM

4.9 GPM

1.7 GPM

1.8 GPM

2.0 GPM

2.2 GPM

2.4 GPM

2.7 GPM

3.1 GPM

3.6 GPM

4.4 GPM

Model AH14

1.5 GPM

1.6 GPM

1.7 GPM

1.9 GPM

2.1 GPM

2.4 GPM

2.7 GPM

3.2 GPM

3.8 GPM

Model Ah11

1.2 GPM

1.4 GPM 1.7 GPM 1.5 GPM 1.3 GPM 1.9 GPM How Chart is based on the output temperature of 1050F

2.1 GPM

2.5 GPM

3.0 GPM

Using the chart above: If you typically use about 2.5 GPM at once, then find that number or the nearest number on the chart. If the number is highlighted in GREEN, that means it’s a great model for you. If it’s highlighted in YELLOW, that means you can get by with it. If it’s is highlighted in RED, you should consider a model a step or two up.

AWG WIRE #2 #2 #2 #4 #4 #6 #8

***

0

ADK Models 0 0 55 F 60 F

40 F

1. Electronics and computer Chip 2. User Temperature Controls 3. Sensors 4. SCR 5. Terminal Block 6. Heating Elements 7. Hi Limit Protection 8. Heating Chambers 9. Aluminum Casing 10. Electric Conduit


AH Series Internal View All AH Models utilize the same parts and technology but have varying sizes and

Electronics and Computer Chip The brains of the system… sophisticated micro-processor based electronics control the power output of the heating elements based on flow rate and incoming water temperature to precisely regulate the output water temperature.

User Temperature Controls Simplicity at its finest! Set it and forget it - use the simple push button controls to raise or lower the temperature setting of your unit. A convenient digital display shows the current temperature setting whenever the unit is running. You can set the temperature at any level between 80°F (27°C) and 125°F (52°C) in increments of 5°F. To change the digital display from Fahrenheit to Celsius, simply press both buttons at the same time. It's just that easy! Sensors A series of sensors monitor the water flow rate as well as incoming and output water temperatures. These sensors send vital information to the micro-processor on a constant and ongoing basis to help maintain the precise output temperature selected by the user.

Time Proportional Triggering Devices (TRIAC) Each heating element is served by a TRIAC which regulates power to the heating element. TRIACS allow the control of very large power flows with milliampere-scale precision. The TRIACS are mounted on a heat-diffusing plate which in turn is cooled by the water flowing through the inlet water line.


Terminal Block Handles the incoming wiring from the electrical subpanel that is supplied with the unit. For your convenience, the wires that connect the tankless water heater to the electrical sub-panel are pre-wired to the terminal block when you receive your unit. Heating Elements The brawn of the system…a series of very high power heating elements are used to heat the water as it passes through the heating chambers. The heating elements are coated to resist dissolved minerals such as calcium (hard water) and iron and the screw plug is made from brass to eliminate electrolysis which corrodes and damages the heating elements. Hi-Limit Thermal Protection with Automatic Reset Each heating element is protected by its own automatic thermal limit switch which will turn off the heating element if a potentially unsafe output water temperature is reached. This reduces the risk for scalding injuries and protects the unit from damage in the event of a power surge or other unusual event. Most competitors' models use thermal limit switches that must be manually reset when triggered - this is not only inconvenient but dangerous. Heating Chambers No messing around with cheap plastics here! The heating chambers are the heart of the American Heat tankless water heater. They are made of copper and brass welded together with silver to resist the expansion and contraction of the metals caused by rapid heated and cooling. Further, they are manufactured by hand to ensure precision. Aluminum Case Once again, no plastics here! The whole package is housed in a solid heat-resistant, attractively-finished aluminum case, thereby protecting internal components from dust, debris and physical damage. The aluminum case also features a built-in mounting bracket to securely fix the unit to the wall at all four corners.

Electrical Sub-Panel and Water Heater Hoses To meet electrical codes in the USA and Canada, tankless water heaters need to be installed with an electrical sub-panel in most instances. When you buy any AH Model from us, we include an electrical sub-panel and the associated breakers. American Heat Tankless Water Heater meet this requirement, unfortunately, many don't...so be careful when comparing to other brands to ensure they meet safety stan dards and your local electrical codes, and that there are no hidden costs when it comes time for installation. (Note: breaker for main electrical panel to be supplied by the installer/purchaser).

Design Services and Special Applications Many of our customers require assistance in finding a solution to their hot water needs, that is where our design team with over 20 years of experience can assist you. No extra charge , just a way to help you go tankless...


AH Series AH-18

Dimensions:

16" x 13.5" x 3.25"

KW/ Elements:

18 KW/ 2 elements

Weight: Materials:

12 lbs.

Energy Efficiency:

99.5%

Copper Exchanger/ Aluminum Casing

Activation Flow Rate:

0.25 gpm

Pipe Fittings:

3/4 ' Standard Pipe / ASTM B-88

Frequency:

50/60 Hz

Voltage:

208/240 volts/single phase

Operating Range:

5-150 psi

Max. Amps:

75 AMPS at 240v

Protection:

Thermal

Breakers Required:

80 Amp Main Panel

Wiring:

Gauge #4 wire

Certifications:

MET Labs

The 18 KW water heaters are configured for climates where incoming water temperatures are in the 60° - 70° F range. The Model AH-18 is suitable as a whole house water heater.

Gallons per minute with outlet temperature set at 105 F Inlet Temp

Gallons Per Minute

40 F

45 F

50 F

55 F

60 F

65 F

70 F

75 F

80 F

1.9

2.0

2.2

2.4

2.7

3.1

3.5

4.1

4.9

Model

AH-21

Dimensions:

16” x 17” x 3.25”

KW / Elements

21 KW/ 3 elements

Weight: Materials:

14 lbs.

Energy Efficiency:

99.5%

Copper Exchanger/ Aluminum Casing

Activation Flow Rate:

0.25 gpm

Pipe Fittings:

3/4 ' Standard Pipe / ASTM B-88

Frequency:

50/60 Hz

Voltage:

208-240 volts/single phase

Operating Range:

5-150 psi

Max. Amps:

87.5 AMPS at 240v

Protection:

Thermal

Breakers Required:

100 Amp Main Panel

Wiring:

Gauge #2wire

Certifications:

MET Labs

Gallons per minute with outlet temperature set at 105 F Inlet Temp Gallons Per Minute

40 F

45 F

50 F

55 F

60 F

65 F

70 F

75 F

80 F

2.3

2.5

2.7

3.0

3.3

3.8

4.3

5.0

6.0

The 21 KW, water heater is configured for cold climates where the incoming water temperature can drop below 55° F. The Model AH-21 is well suited for homes in the northern U.S. and Canada, and those in the southern U.S. that have large Roman-style or Jacuzzi tubs and that have generally more demanding water usage needs.


Model

AH-24

Dimensions

16” x 17” x 3.25”

KW / Elements

24 KW / 3 elements

Weight: Materials:

14 lbs.

Energy Efficiency:

99.5%

Copper Exchanger/ Aluminum Casing

Activation Flow Rate:

0.25 gpm

Pipe Fittings:

3/4 ' Standard Pipe / ASTM B-88

Frequency:

50/60 Hz

Voltage:

208-240 volts/single phase

Operating Range:

5-150 psi

Max. Amps:

100 AMPS at 240v

Protection:

Thermal

Breakers Required:

125 Amp Main Panel

Wiring:

Gauge #2wire

Certifications:

MET Labs

The 24 KW water heater is configured for climates where incoming water temperatures are in the 50° - 70° F range. The Model AH-24 is suitable as a whole house water heater.

Gallons per minute with outlet temperature set at 105 F Inlet Temp

40 F

45 F

50 F

55 F

60 F

65 F

70 F

75 F

80 F

2.5

2.7

3.0

3.3

3.6

4.1

4.7

5.4

6.5

Gallons Per Minute

Model AH-27 Dimensions

16” x 17” x 3.25”

KW/ Elements

27 KW / 3 elements

Weight: Materials:

14 lbs.

Energy Efficiency:

99.5%

Copper Exchanger/ Aluminum Casing

Activation Flow Rate:

0.25 gpm

Pipe Fittings:

3/4 ' Standard Pipe / ASTM B-88

Frequency:

50/60 Hz

Voltage:

208-240 volts/single phase

Operating Range:

5-150 psi

Max. Amps:

112.5 AMPS at 240v

Protection:

Thermal

Breakers Required:

125 Amp Main Panel

Wiring:

Gauge #2wire

Certifications:

MET Labs

The most powerful electric tankless water heater on the market. This 27 KW, water heater is configured for cold climates where the incoming water temperature can drop below 45° F. The Model AH-27 is well suited for homes in the northern U.S. and Canada, and those in the southern U.S. that have large Roman-style or Jacuzzi tubs and that have generally more demanding water usage needs.

Gallons per minute with outlet temperature set at 105 F Inlet Temp

Gallons Per Minute

40 F

45 F

50 F

55 F

60 F

65 F

70 F

75 F

80 F

2.8

3.1

3.3

3.7

4.1

4.6

5.2

6.1

7.3


American Heat Model Selector Which Model is Right for You? Choosing an appropriate model of electric tankless water heater for your home or business depends on 3 primary factors. 1-your incoming water temperature 2-maximum flow rate desired and 3-electrical service of your home

AH Series

ADK Series Required Breaker Super ADK-1 Model ADK1 Model ADK2 Model ADK3 Model ADK4

one 60 AMP one 50 AMP one 40 AMP one 30 AMP one 30 AMP

Max Power 57 AMPS 47 AMPS 37 AMPS 30 AMPS 29 AMPS

AWG WIRE #6 #8 #8 #10 #10


INCOMING WATER TEMPERATURE The chart is designed to offer you a general model recommendation based on the typical winter incoming water temperatures in various regions of North America. The model recommended on the chart for your area is based on a desired maximum flow rate of about 3 gallons per minute and should be regarded as the smallest recommended model for a general whole-house residential water heater selecting a more powerful model will provide higher flow rates. Our chart and recommendations also assume that your home has enough electrical service to support the model suggested - see charts.

MODEL SELECTOR CHART The chart below shows what models provide how much flow in which input temperature. All Models work with a 208/220/240 application. The following table is based on a 240V application:

0

0

0

ADK Models 550F 600F

650F

700F

750F

800F

2.1 GPM

2.4 GPM

2.7 GPM

3.2 GPM

3.8 GPM

1.9 GPM

2.0 GPM

2.3 GPM

2.7 GPM

3.0 GPM

.2 GPM

1.3 GPM

1.4 GPM

1.5 GPM

2.0 GPM

2.2 GPM

.8 GPM

1.0 GPM

1.2 GPM

1.4 GPM

1.5 GPM

1.7 GPM

***

.25 GPM

.4 GPM

.6 GPM

.8 GPM

.9 GPM

650F

700F

750F

800F

Inlet Water Temperature

40 F

45 F

50 F

Model Super ADK-1

1.5 GPM

1.6 GPM

1.7 GPM

1.9 GPM

Model ADK-1

1.3 GPM

1.4 GPM

1.5 GPM

1.7 GPM

Model ADK-2

.7 GPM

.8 GPM

.0 GPM

Model ADK-3

.25 GPM

.4 GPM

.6 GPM

Model ADK-4

***

***

*** 0

AH Models 550F 600F

Inlet Temperature

0

40 F

0

45 F

50 F

Model AH27

2.8 GPM

3.1 GPM

3.3 GPM

3.7 GPM

4.1 GPM

4.8 GPM

5.2 GPM

6.1 GPM

7.3 GPM

Model AH24

2.5 GPM

2.7 GPM

3.0 GPM

3.3 GPM

3.8 GPM

4.1 GPM

4.7 GPM

5.4 GPM

6.5 GPM

Model AH21

2.3 GPM

2.5 GPM

2.7 GPM

3.0 GPM

3.3 GPM

3.8 GPM

4.3 GPM

5.0 GPM

6.0 GPM

Model AH18

1.9 GPM

2.0 GPM

2.2 GPM

2.4 GPM

2.7 GPM

3.1 GPM

3.5 GPM

4.1 GPM

4.9 GPM

Model AH16

1.7 GPM

1.8 GPM

2.0 GPM

2.2 GPM

2.4 GPM

2.7 GPM

3.1 GPM

3.6 GPM

4.4 GPM

Model AH14

1.5 GPM

1.6 GPM

1.7 GPM

1.9 GPM

2.1 GPM

2.4 GPM

2.7 GPM

3.2 GPM

3.8 GPM

Model Ah11

1.2 GPM

1.4 GPM 1.7 GPM 1.5 GPM 1.3 GPM 1.9 GPM How Chart is based on the output temperature of 1050F

2.1 GPM

2.5 GPM

3.0 GPM

Using the chart above: If you typically use about 2.5 GPM at once, then find that number or the nearest number on the chart. If the number is highlighted in GREEN, that means it’s a great model for you. If it’s highlighted in YELLOW, that means you can get by with it. If it’s is highlighted in RED, you should consider a model a step or two up.

Electrical Service Your final consideration when selecting an electric tankless water heater is the electrical service to your home or business. All American tankless water heaters require 240 volts, single phase power. Since a tankless water heater works on demand, it must transfer a massive amount of heating power instantaneously to heat the water. Accordingly, tankless water heaters have a high peak electrical load even though they will reduce your overall electricity consumption substantially. Accordingly, consideration must be given to the number of AMPS of electrical service your home has to support the operation of the heater and other simultaneous electrical needs. You can determine how many amps of electrical service your home has by inspecting the main breaker (the one you use to turn off power to the whole house) in your electrical panel.


FOR YOUR WHOLE HOUSE A water heater installed in a whole house is meant to supply all of your water necessities with a single unit. Larger homes with high volume requirements could require two units. Also, customers with custom shower systems including multiple shower heads, body sprays, etc. could benefit from having a tankless water heater for that system alone due to the high volume requirements.

VS Description First hour rate Size Dimension

Instant Tankless Water heater

40 gallon Tank water Heater

240 Gal/Hr

135 Gal/ hr

1.4 Cubic feet

Avg. 24 cubic Feet

12" x 4" x 9"

Avg. 26.5"(D) x 69"(H)

Shipping weight

7lbs.

60lbs.

Self modulated Computerized Safety Devices

Yes

No

Electronic flow sensor

Yes

No

11.8 Kw/Hr

5.5 Kw/Hr

0

16.5 Kw/day

0%

20%

285.8 kw/mos

495.1 kw/mos

Endless

Limited

Usage Kw/Hr Standby loss in Kw/day Standby heat loss Killowatt usage per month Supply of hot water

Studies based upon a family of three with 2.5 bathrooms and 1- Kitchen.

AMERICAN HEAT DISTRIBUTORS, INC Tel. 305.556.5266 / Fax 305.556.9171 1.888.818.HEAT 8255 west 20 ave / Hialeah, Fl 33014

www.americanheatus.com

AMERICAN HEAT  

AMERICAN HEAT BROCHURE

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