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5

Temperature

Exposure Time Resulting in Scalding

120°F (49°C)

5 minutes of exposure

122°F (50°C)

3 minutes of exposure

 If you have small children, disabled, or elderly persons in your 

home, you may require a setting of 120°F (49°C) or lower to ensure 

their safety. Water temperature is regulated by the knob on the front 

of the water heater

3

Selecting an Installation Location 

•  This Water Heater is designed for indoor installation only.
•  The heater should not be installed in a location where it might 

be subjected to freezing temperatures, since frozen water in 

the unit can cause severe and irreversible damage which is 

not covered under your warranty.

•  The water heater should be placed in a location that is easy to access.
• 

 Ensure that the water heater, as well as the power supplies and water connections, are 

out of the reach of children to prevent them tampering with controls or touching an extremely 

hot pipe.

•  Do not install the unit where it is may be exposed to excessive humidity, moisture or dust, or 

where it may be splashed with water or other liquids.

•  Do not install the unit below water pipes or air conditioning lines, where it is susceptible to 

leaking or dripping water or other liquids.

•  Do not install the unit above electrical boxes or junctions.
•  If possible, avoid installation in a location that could be damaged due to leakage from the 

water heater. Install a drip pan with drainage, or an active leak detector and automatic shutoff 

valve, to prevent damage in case of a leak.

Item #

Unit dimensions (inches) Weight (lbs) Connections

ThermoPro 18 13-3/8 x 17-3/8 x 5-1/4

17

3/4”

ThermoPro 24 13-3/8 x 17-3/8 x 5-1/4

17

3/4”

ThermoPro 27 13-3/8 x 17-3/8 x 5-1/4

17

3/4”

 

WARNING:

 Water heater are heat-producing appliances. To avoid damage, injury or death, 

the water heater must be installed in a manner that prevents contact with any substances 

or materials, and proper care must be taken to prevent unnecessary contact (especially 

by children) with the water heater. UNDER NO CIRCUMSTANCES SHOULD FLAMMABLE 

MATERIALS, SUCH AS GASOLINE OR PAINT THINNER, BE USED OR STORED IN THE 

VICINITY OF THIS WATER HEATER OR ANY LOCATION FROM WHICH FUMES COULD 

REACH THE WATER HEATER.

• Children, disabled and 

elderly are at high risk of 

being scalded.

• See instruction manual 

before setting your desired 

hot water temperature

• Always feel water before 

bathing or showering 

Содержание AT-910-18TP

Страница 1: ...www atmorusa com Electric Tankless Water Heaters ThermoPro Series Models AT 910 18TP AT 910 24TP AT 910 27TP Hot Water on Demand ...

Страница 2: ...oderate injury Used without word Indicates a safety related message NOTICE Indicates a practice not related to personal injury which if not avoided may result in property damage WARNING READ THIS INSTRUCTION MANUAL THOROUGHLY AND COMPLETELY BEFORE INSTALLATION AND USE FAILURE TO DO SO COULD CAUSE DAMAGE TO PROPERTY SERIOUS INJURY OR DEATH AND VOID YOUR WARRANTY Contact service directly if you have...

Страница 3: ...l Installation 10 9 Flow Rate 12 10 Operation Guide 12 13 11 Care and Maintenance 13 14 12 User Interface Controls 14 15 13 Troubleshooting 16 17 14 Reset Unit 18 Before Installing By installing this product you acknowledge the terms of the manufacturer s warranty and authorized dealer s return policy Once the heater is installed do not return the product to the place of purchase If you have any q...

Страница 4: ...d indoor use only Do not immerse in water Each breaker used to power this unit must be grounded by means of the electrical panel The heater must be connected directly to dedicated circuit breakers on the main electrical panel Do not install the heater where it may be subjected to direct sunlight rain splashing water moisture humidity or freezing temperatures This unit is intended for heating water...

Страница 5: ...e unit below water pipes or air conditioning lines where it is susceptible to leaking or dripping water or other liquids Do not install the unit above electrical boxes or junctions If possible avoid installation in a location that could be damaged due to leakage from the water heater Install a drip pan with drainage or an active leak detector and automatic shutoff valve to prevent damage in case o...

Страница 6: ...pipe The water heater and the hot water outlet pipe must be secured and out of children s reach to prevent tampering with controls or contact with an extremely hot pipe 6 If installing the heater on an upper floor or attic make sure installation complies with the local codes Install a drip pan with drainage or a leak detector and automatic shutoff valve to prevent damage in case of any leakage 7 U...

Страница 7: ...be installed in accordance with local codes It is important to ensure that the unit is 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 of Massachusetts a...

Страница 8: ... the cold water inlet where this unit will act as booster STEP 3 After tightening both fittings on the water heater turn on several hot water faucets to allow water to flow through the water heater for at least 2 to 3 minutes This process purges all the air from the water lines and must be performed before turning on the power at the unit FAILURE TO PERFORM THIS STEP COULD CAUSE PERMANENT DAMAGE T...

Страница 9: ...gauge as well as circuit protection breaker must comply with the U S National Electrical Code NEC in the USA or the Canadian Electrical Code CEC in Canada Failure to do so could lead to property damage personal injury and void your warranty Note The Canadian Electrical Code generally requires that all supply wires and corresponding circuit protection used for domestic hot water heating and hydroni...

Страница 10: ...P 4 DOUBLE CHECK The electrical connections and ensure the wire connections are correct tight and secure It s important to confirm that the right breaker size and wire gauge has been used and that the unit has been connected to a ground in accordance with applicable codes Be sure to reattach the front cover of the unit with four screws STEP 5 Ensure that all the air has been purged from the water ...

Страница 11: ...208V AT 910 18TP 18 000 Watts 150 125 Watts 13 520 Watts AT 910 24TP 24 000 Watts 20 166 Watts 18 026 Watts AT 910 27TP 27 000 Watts 22 687 Watts 20 280 Watts Your tankless water heater is now installed and ready to use Follow the General Operating Instructions to complete the setup Wiring Diagram for AT 910 18TP AT 910 24TP AT 910 27TP Terminal Block in Unit Circuit Breakers Unit Requires 10 AWG ...

Страница 12: ...sitting and losing heat in a storage tank it provides significant energy savings than a conventional water heater With your new system as soon as you turn on the hot water faucet the demand for hot water is detected by a flow sensor and the high power heating elements are activated Sensors continually monitor the water flow rate and measure the incoming and outgoing water temperature Data is trans...

Страница 13: ... leak the following maintenance is recommended The water heater has minimal maintenance requirements Periodically inspect and test the heater for signs of damage or failure Any damage cracks leakage or weakness should be addressed and fixed immediately Do not over tighten any of the connections Over tightening the connection points could cause severe internal damage to the unit Remember that water...

Страница 14: ...to the right clockwise to activate the heater The display will light up Turn the knob all the way to the left counterclockwise to turn off the heater Setting the Output Water Temperature To set the temperature turn on a hot water faucet and allow water to run through the heater Turn the knob clockwise to activate the heater and display the outlet temperature To raise the temperature setting turn t...

Страница 15: ...flow continuously through the device at a very low rate without heating Restore power to the unit when temperature condition is normal If the water inside the heater freezes it can cause damage that is not covered by warranty If you suspect water has frozen within the unit do not turn it on until you are sure the frozen water has melted and there are no leaks in the unit It is recommended to conta...

Страница 16: ...ter Reduce the water flow rate at the faucet or slightly close the shutoff valve on the unit s incoming water supply line to reduce the water flow rate Voltage less than 240 Volts The heating elements on your water heater are designed for 240 volts When used with a lower voltage they produce less heating power You may need to upgrade to a larger input heater Crossed Wires If it s a new installatio...

Страница 17: ...r outlet Temperature setting is too high Switch to a lower temperature setting Water Temperature at faucet is too hot Check for too little flow or if the set point temperature is too high This could possibly indicate a possible internal part failure Call us for technical assistance Heater shuts off during use Power outage or faulty wiring Check the power supply Check the circuit breakers If the pr...

Страница 18: ... water heater WARNING SERIOUS BODILY INJURY OR DEATH COULD OCCUR IF YOU IGNORE THIS WARNING Locate the three reset button locations as shown below and press all buttons If you hear a click the unit has reset If you find that the unit needs to be reset quite often please call our customer service for further assistance Proceed to turn on your breakers and power on the unit ...

Страница 19: ...water heater or part is not available the manufacturer s liability is limited to the cost of the water heater or 1 000 00 whichever is less The manufacturer is not an insurer and the original owner should purchase insurance to cover damage to property or belongings The original owner agrees to waive their right to jury trial or to participate in a class action Also the original owner agrees to wai...

Страница 20: ...Notes P N 196183J ...

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