Marey ECO240 Instruction Manual Download Page 8

Connect the power cable at the lower right side of the unit to the terminal block.   
Each wire in the cable is labeled to correspond with spaces in the terminal block.   
Make  sure  that  you  plug  the  appropriately  labeled  wire  into  the  corresponding 
space  on  the  terminal  block.  Note  that  the  unit  will  be  connected  to  two  circuit 
breakers (Fig. 12).

Important Notes About Electrical Connections:

1.

 Before beginning any work on the electric installation, be sure that the main 

breaker panel switch is OFF to avoid any danger of electric shock. All mounting and 
plumbing must be completed before proceeding with the electrical installation.

2.

 All  electrical  work  must  comply  with  national  and  applicable  state  and  local 

electrical codes.

3.

 All units must be connected to a properly grounded dedicated branch circuit of 

proper voltage rating.

4.

 This product requires three independent circuit breakers. Use threeinsulated 

wires for the three separate double-pole breakers.

5. 

When connecting the wires to the terminal blocks, make sure the metal wire ends 

and  the  terminal  blocks  completely  touch.  Then,  tighten  the  screws  securely. 
Failure to properly tighten can result in current escape and burning of the terminal 
blocks.

14

Fig. 12

Reattach the cable for the LCD panel if disconnected and reinstall the front cover 
using the screws and washers previously removed. (Fig. 13).

Connect the cold water supply to the threaded pipe labeled “inlet” and the hot water 
to the threaded pipe labeled “outlet.” IMPORTANT:  RUBBER WASHER MUST BE 
USED FOR PROPER SEAL. (Fig. 14)  Connections are 3/4” NPT.

15

Fig. 14

 

 

Fig. 13

Summary of Contents for ECO240

Page 1: ......

Page 2: ...tions Pleasecarefullyreadallinstructionsandwarnings Ifyouneedassistance or have any questions please contact us at Please keep this manual for future referenceandtechnicalinformation 1 512 332 2229 03...

Page 3: ...ed plumber or electrician Installation of this product is restricted to indoor locations Under no circumstances should you attempt to install repair or disassemble the Marey Heater tankless electric w...

Page 4: ...ill never be water leakage nor the electric leakage in the heating chamber Marey also have an extra stainless steel water flow channel instead of the old aluminum so no matter how is your water qualit...

Page 5: ...t to the Ground Sealer Release Valve Wash with Filer Inlet Water 2000mm Power Supply E N L Air Switch Fig 03 Display Screen Up On Off Down Temp Sensor Flowmeter Terminal Blocks Display Screen Control...

Page 6: ...sure the water heater and all fittings are complete and intact 6 Make sure that the main power supply water pressure ground amperage voltage and wiring meet all standards 7 The water heater must be c...

Page 7: ...the hole and secure the bracket using the screws supplied Fig 08 Remove 4 screws and washers Fig 09 from the unit to free the front cover Carefully lift the front cover off the unit a few inches Disen...

Page 8: ...le state and local electrical codes 3 All units must be connected to a properly grounded dedicated branch circuit of proper voltage rating 4 This product requires three independent circuit breakers Us...

Page 9: ...ress ON OFF to start the unit If there is power to the unit but no digital display turn off the circuit breaker Double check to make sure that the cable to the LCD panel on the front cover is correctl...

Page 10: ...repair this water heater yourself Call a service person for assistance Always turn off the breaker before working on the unit To ensure consistent water flow the following is recommended 1 Periodicall...

Page 11: ...arey com Please visit our website to get to know more about other Marey products AtMarey weprideourselvesontheexcellenceofourcustomerservice and support team Pleasefeelfreetocontactusifyouhaveanyquest...

Reviews: