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TM074: Stainless Steel Electric Water Heater Service Instructions 
REV AB Issued: 07/16 
 

This document is stored and maintained electronically by Rheem Technical Support

. All printed copies are deemed “uncontrolled”

 

25 

COMPONENT ADJUSTMENT PROCEDURES 

 

Thermostat Adjustment 

 
The  bottom  thermostat  has  been  factory  pre-set  to  70°C.  It  is  possible  to  adjust  the 
thermostat from 60 to 70 or 80°C depending on the heater capacity. 
 
The top thermostat is not adjustable  
 
To adjust the bottom thermostat: 
 

 

Personal Protective Equipment should be worn when conducting step  3 of 
this procedure to reduce the risk of electric shock.

 

 
1. 

 Isolate the power supply to the water heater by removing fuse 
or switching off circuit breaker

. 

2.  Remove lower access cover. 

3. 

Confirm  with  a  multi-meter  between  Active  and  Neutral  at  the 
terminal block that voltage is not present.

 

4.  Turn thermostat temperature adjustment dial clockwise to increase 

temperature  setting  or  anticlockwise  to  decrease  temperature 
setting.  NOTE:  Do  not  attempt  to  force  the  setting  past  the  stops, 
damage to the thermostat WILL occur. 

5.  Replace lower access cover. 

6.  Restore the power supply to the water heater. 
 

 

Содержание AquaMax E50S SS Series

Страница 1: ...pies are deemed uncontrolled Rheem Australia Pty Ltd ABN 21 098 823 511 SERVICE INSTRUCTIONS Stainless Steel Electric Water Heaters TM074 Issued November 13 Revision AB Issued July 16 Rheem Stellar Ev...

Страница 2: ...HANGES 11 FAULT FINDING 12 General Fault Finding Chart 14 Fault Finding Chart 1 No Hot Water 15 Fault Finding Chart 2 Insufficient Hot Water Water Not Hot Enough 18 Fault Finding Chart 3 Water Too Hot...

Страница 3: ...this Service Manual is to provide sufficient information to allow a person with the skills as required by the controlling Regulatory Authorities to carry out effective repairs to a Rheem Stellar Everh...

Страница 4: ...ter to which it is attached 4 A 1 250 M 5 P Cylinder Warranty 2 Everhot 4 Rheem A Stainless Steel Heating Units 1 Single Heating Unit 2 Two Heating Units Rated Delivery Plant of Manufacture Heating Un...

Страница 5: ...etting C Top T stat Setting C Water Connections With ECV Without ECV Inlet Outlet TPR 2A1050M7 4A1050Mx E50SxSS 50 1400 960 1120 60 80 RP 20 RP 15 4A1080Mx 80 1400 960 1120 60 70 RP 20 RP 15 4A1125Mx...

Страница 6: ...sets properly Always open and close the valve gently 3 Check for leaks at all tank fittings 4 Check for signs of excessive corrosion on the water heater jacket 5 If an overflow tray is installed check...

Страница 7: ...ase of excessive temperature pressure or both Never fit a TPR Valve with a pressure rating greater than that indicated on the product rating label Pressure Limiting Valve P L V A valve that controls i...

Страница 8: ...ric Water Heater Service Instructions REV AB Issued 07 16 This document is stored and maintained electronically by Rheem Technical Support All printed copies are deemed uncontrolled 8 WIRING DIAGRAMS...

Страница 9: ...t Installation Instructions Two Temperature Zone Plumbing Diagram Circulated Flow Return Plumbing Diagrams For circulated hot water flow and return systems a temperature limiting device can only be in...

Страница 10: ...Water Heater Service Instructions REV AB Issued 07 16 This document is stored and maintained electronically by Rheem Technical Support All printed copies are deemed uncontrolled 10 Circulated Flow Ret...

Страница 11: ...Heater Service Instructions REV AB Issued 07 16 This document is stored and maintained electronically by Rheem Technical Support All printed copies are deemed uncontrolled 11 PRODUCT CHANGES There are...

Страница 12: ...household and compare this with the potential delivery of the model water heater installed It can then be established if the usage is within or outside the capacity of the model The areas to look at...

Страница 13: ...hen do either of the following a With your ear close to the stopcock turn it on slightly and listen for any water passing If there are no leaks water should not pass b Open a hot tap while listening f...

Страница 14: ...FAULT FINDING CHART 1 2 3 4 5 Insufficient hot water Water not hot enough Water too hot Leaking water heater Noisy water heater Chart Complaint Page 1 No hot water Power supply fault finding 15 1 1 El...

Страница 15: ...Refer to the section on Electrical Insulation Testing Is reading below 1 mega ohm 1 1 YES Isolate power and continue fault finding NO Fault in premises electrical wiring Isolate power and continue fa...

Страница 16: ...Is the overall resistance of the water heater correct TEST 5 YES Locate wiring failure and repair NO Water heater electrically ok YES YES Fault Finding Chart 1 3 Twin element model 1 3 Are the top the...

Страница 17: ...rientation NO YES Install element in correct orientation and reset ECO Replace bottom thermostat Are the bottom thermostat contacts closed TEST 3 Is cylinder water temp 12 C less than the bottom therm...

Страница 18: ...Isolate crossed connections YES NO Is cylinder water temp 8 C less than the thermostat setting YES NO 1 2 Has there been a recent large draw off of hot water NO YES Is a tempering valve installed YES...

Страница 19: ...er than they may desire i e 1 When mixed with cold water more hot water delivery is possible 2 To prohibit bacteria growth Tempering devices should be suggested as a solution Is a tempering valve inst...

Страница 20: ...ed conduct a pressure test Replace heater if pressure will not hold NO Fault Finding Chart 5 Noisy Water Heater NOISY WATER HEATER 5 Is noise only evident during heating cycle YES NO Check for 1 Miner...

Страница 21: ...he off peak Active terminal A1 and the Neutral terminal N on the terminal block Then measure between the boost Active terminal A2 and the Neutral terminal N on the terminal block The following results...

Страница 22: ...imeter on the resistance scale measure between the Active wire A and the Neutral wire N on the terminal block Note If model is a twin element model mark disconnect and twist A1 and A2 actives together...

Страница 23: ...ned electronically by Rheem Technical Support All printed copies are deemed uncontrolled 23 Fault Finding Test 8 Test 8 Using a multimeter set on the resistance scale measure between the top thermosta...

Страница 24: ...earth 4 Operate megger on 500 VDC setting A reading above 1 mega ohm should be obtained 5 If a reading below 1 mega ohm is obtained all component parts will need to be individually tested to locate th...

Страница 25: ...m thermostat Personal Protective Equipment should be worn when conducting step 3 of this procedure to reduce the risk of electric shock 1 Isolate the power supply to the water heater by removing fuse...

Страница 26: ...between Active and Neutral at the terminal block that voltage is not present 4 Disconnect the cold water supply pipe 5 Fit a drain hose to the cold water connection and run the other end to a drain or...

Страница 27: ...ation for cracking 8 Conduct an electrical insulation test refer to Electrical Insulation Testing on page 24 9 Refit the thermostat protective cover and the lower access cover 10 Restore the power sup...

Страница 28: ...test should be performed whenever an element or element gasket is replaced adjusted or serviced in any way This continuity test is performed between the heaters internal storage cylinder and the main...

Страница 29: ...SION HISTORY Title Stainless Steel Electric Water Heater Service Instructions Document No TM074 Revision Details of change D O I 00 Service Instructions issued 11 13 AA Twin Element 50L Models added 0...

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