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LIMITED WARRANTY

Atmor warrants to the original owner that our instant water heaters will be free from defects 

in workmanship and material for  a period of TWO YEARS from the date of purchase, and 

free  from  leakage  for  a  period  of  SEVEN  YEARS  from  the  date  of  purchase.  Should  any 

part(s)  prove  to  be  defective  during  this  period, Atmor  will  be  responsible  for  replacement 

of the defective part(s) only. Atmor is not responsible for labor charges or any incidental or 

consequential expenses.

Should  the  owner  wish  to  return  the  water  heater  for  repair,  the  owner  must  first  secure  a 

written authorization from Atmor. The owner shall be required to show proof of purchase date 

and to pay all transportation costs to return the defective part(s) or water heater for repair or 

replacement. Warranty is void if: (i) water heater has been installed or used improperly; (ii) 

design has been altered in any way; (iii) water heater has been installed and/or serviced by 

someone other than a licensed electrician ; (iv) or if the water heater has been installed or used 

in contradiction to installation instructions, applicable laws and/or ordinances.

Distributed by:

PARAGON GROUP USA LLC

15 Engle Street, 3

rd

 Floor

Englewood, NJ 07631
1-888-783-6082

P.N. 1

15045C

Summary of Contents for AT900-03

Page 1: ...www atmor net Hot Water on Demand Installation and Operation Guide 900 Series InLine 3kW 13kW ...

Page 2: ...icity is turned off Safety Instructions 1 01 04 07 03 06 09 02 05 08 The water heater must be installed by a licensed electrician and in compliance with all local electrical and building regulations The heater must be installed according to the installation instructions see figures The plumbing installation requires metal or reinforced pipes that can withstand a minimum pressure of 8 bar Other typ...

Page 3: ...240 44 1 50 6 AWG AT900 13 13 kW 240 55 1 60 4 AWG Minimum water flow to activate unit 0 5 GPM Nominal water volume 0 11 gal 0 42l Working pressure 0 5 8 bar 7 115 psi Tested pressure 16 bar 230 psi Water connections 1 2 NPT Dimensions in H x W x D 7 3 x 11 8 x 3 55 Weight Ib 3 4 Model 240V 208V 110V 120V AT900 04 3 8 kW 2 8 kW AT900 06 6 5 kW 4 9 kW AT900 08 8 5 kW 6 4 kW AT900 10 10 5 kW 7 9 kW ...

Page 4: ...type of hose will cause damage Figure 5 Residential plumbing systems with unstable pressure or pressure above 5 bar require the application of a pressure stabilizer valve set to 4 5 bars Do not install the appliance with water inlets and outlets at the top Figure 6 Mount unit to wall with 4 screws at the marked points Figure 4 The appliance must be mounted horizontally with water inlets and outlet...

Page 5: ...4 2 3 4 6 5 G Green or Yellow N White L1 L2 Black 1 Rubber Cold Hot PRD L1 L2 N 3a 3kW 3b 3 5 8 5kW 3c 8 6 13kW Note Neutral N does not need to be connected L1 L1 L2 N L2 L1 G G N N L1 L1 G G N L1 L2 ...

Page 6: ...ecure it with 4 screws and then slide the bottom gray cover Connect the power cable to the terminal block Caution The heater must be grounded Reference figure 3 on page 4 and Electrical diagram on page 6 When installed outdoors the heater must be placed in sealed waterproof electrical box Make sure that the appliance is filled with water before connecting power Repeat step 7 11 12 Do not install t...

Page 7: ... L1 L2 N E G L N E G 1 1 L E G N L1 E G L2 N 1 Terminal block 2 Thermostat with reset 3 Thermostat 4 Switches with lights 5 Relay 6 Heating elements 7 Read sensor 8 EARTH G Connection in the heating canister L1 L2 N E G 5 6 4 1 2 7 3 L N E G 8 1 8 6kW 10 5kW 240V 10 6kW 13kW 240V 1 3 3 4kW 110V Install Line 1 L1 E G Ground N Neutral 2 3 5 8 5kW 240V Install Line 1 L1 E G Ground Line 2 L2 L1 L2 Lin...

Page 8: ...owing through the heater Reduction in the ambient temperature Water Pressure below of 0 5 bar 7 psi Electrical Malfunction Reduce the flow rate of the water via the outlet tap Switch to higher temperature setting Check if the main water line stop valve is fully open and that there are no other restrictions in the water supply line Have the Heater unit check by a qualified eIectrician or contact yo...

Page 9: ... held shower head Check to see that your shower head hose is not twisted or blocked It is necessary for the hose to have a free passage of water Check if the main water line stop valve is fully open and that there are no other restrictions in the water supply line Water temperature varies from hot to cold during use Water pressure has dropped below min level Increase hot water supply No hot water ...

Page 10: ...3 Cold water inlet 2 PRD 5 Hot water outlet to be connected to the main hot water pipe 1 Switches 9 Parts ...

Page 11: ...10 ...

Page 12: ...turn the water heater for repair the owner must first secure a written authorization from Atmor The owner shall be required to show proof of purchase date and to pay all transportation costs to return the defective part s or water heater for repair or replacement Warranty is void if i water heater has been installed or used improperly ii design has been altered in any way iii water heater has been...

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