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Electrical Specifications by Heater Input
Item #
18kW
24kW
29kW
28.8
Power Rates
Item #
18kW
24kW
29kW
Your tankless water heater is now installed and ready to use! Follow the General Operating Instructions to complete the setup.
Wiring Diagram for 18kW
Wiring Diagram for 24kW, 29kW
10
kW
Max Amps
Required Breaker
18
75
2 x 40A Double Pole
24
100
3 x 40A Double Pole
120
3 x 40A Double Pole
240V
18,000 Watts
15,125 Watts
24,000 Watts
20,166 Watts
28,800 Watts
24,200 Watts
40 Amp
40 Amp
Double Pole
Double Pole
L1
L2
L1
L2
Unit Requires 10 AWG ground wire - one for each 240V circuit
Req. Wire Size
2 x 8/2 AWG with Ground
3 x 8/2 AWG with Ground
3 x 8/2 AWG with Ground
220V
208V
13,520 Watts
18,026 Watts
21,632 Watts
40 Amp
40 Amp
Double Pole
Double Pole
L1
L2
L1
L2
Unit Requires 10 AWG ground wire - one for each 240V circuit
40 Amp
Double Pole
L1 L2
L1
L2
8/2 AWG
8/2 AWG
8/2 AWG
Terminal Block in Unit
L1 L2
L1 L2
8/2 AWG
8/2 AWG
L1 L2
L1 L2
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Need help?
Do you have a question about the CMXTEPA0018 and is the answer not in the manual?
Questions and answers
how to reset unit
To reset the Craftsman CMXTEPA0018 unit, follow these steps:
1. Turn Off Power – Shut off the electrical supply to the unit at the fuse box or circuit breaker.
2. Locate Reset Buttons – Identify the three reset button locations as indicated in the manual.
3. Press Reset Buttons – Press the two reset buttons. If you hear a “click,” the unit has been reset.
4. Restore Power – Turn the circuit breakers back on and power up the unit.
If the unit requires frequent resetting, contact customer service for assistance.
This answer is automatically generated
@Mr. Anderson
my unit seems to only have two reset buttons on it. Pushing them does not seem do anything.
If the reset buttons on your Craftsman CMXTEPA0018 unit are not working, first ensure that the power to the unit is turned off at the fuse box or circuit breaker. Locate the three reset button positions and press both reset buttons. If you do not hear a “click” or if the unit frequently requires resetting, contact customer service for further assistance. Do not attempt further repairs without professional guidance.
This answer is automatically generated
how to reset unit cmxtepa0029
To reset the Craftsman unit CMXTEPA0029, follow these steps:
1. Turn off the power at the fuse box or circuit breaker.
2. Locate the three reset button positions on the unit.
3. Press the two reset buttons.
4. If you hear a "click," the unit is reset.
5. Turn the circuit breakers back on and restore power to the unit.
If the unit requires frequent resetting, contact customer service for assistance.
This answer is automatically generated
@Mr. Anderson Sir, could you please read what you wrote to me: Locate the 3 reset buttons. Push the 2 reset buttons. Which is it, 3 reset buttons or 2 reset buttons?
Sir, figured out it was a bad breaker. Now I need to change it from reading Centigrade to Fahenhite. I can not find on this manual. Thanks.