Question about Rheem ELD30: 30 GALLONS, 8.0KW, 208 VOLTAGE, 1 PHASE, 2-4000 WATT ELEMENT, SIMULTANEOUS WIRING, NON-ASME COMMERCIAL ELECTRIC WATER HEATER

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Can a Rheem ELD30-B be converted from simultaneous to nonsimultaneous?

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Can i convert a Rheem ECO 180DVP (LP gas unit) to a natural gas unit ?


Rheem water heaters should not be converted from propane to natural gas. The burners have been optimized for the rated gas and will not work as well after conversion. (Unlike ranges where the gas/air flow ratios can be adjusted when the burner orifices and regulator are swapped, the water heater doesn't have that option.)

I wish I had better news for you. I recommend you get a new water heater for the LNG service; it will be safer and more efficient.

Cindy Wells

Nov 10, 2014 | Rheem Tankless Hot Water Heater...

1 Answer

Convert to LP


Often tankless conversion to different gas is done with dip switch settings
Check product manual
Call service technician
Call Rheem
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

Gene

Aug 22, 2014 | Water Heaters

1 Answer

How to wire a rheem 40 gal electric hotwater heater with a yellow,blue, and Black wires


Jan 2013
1) Water heaters can be wired many different ways.
Copy following link For ordinary household 240Volt water heater, the heater is wired for non-simultaneous operation:
http://waterheatertimer.org/images/WH-w-combined2-1000.jpg
Copy following link For other wiring diagrams, including off-peak, simultaneous, redundant, etc
http://waterheatertimer.org/How-to-wire-water-heater-thermostats.html

2) Make sure water heater circuit breaker and wire size matches watt rating that shows on end of each element.
http://waterheatertimer.org/Color-codewire.html

3) Non simultaneous means only 1 element is ON at a time.
So either upper element is ON, or lower element is ON, or both elements are OFF.
Both elements are never ON at same time.
So non-simultaneous water heater with two 4500 watt elements has total connected watt rating of 4500 watts. Because only 1 element can be ON at a time.
Use 30 amp breaker and 10 gauge wire.

Jan 19, 2013 | Rheem RUUD ELD40 Water Heater,electric,40...

1 Answer

Energy factor rating


Rheem 50 gallon Pro52-2 has EF .95, which makes it ordinary 240Volt 4500 watt non-simultaneous electric water heater that produces about 21 gallons hot water per hour, with 67 gallon first hour delivery.
Recommend 80 gallon per hour first hour for oversized bathtub.
http://bostonheatingsupply.com/Rheem/Rheem%20Residential%20Electric/Professional/Rheem_ResidentialElectric_Professional%20Spec%20Sheet.pdf

Maintain electric water heater and it will last indefinitely.
http://waterheatertimer.org/How-to-maintain-water-heater.html
http://waterheatertimer.org/9-ways-to-save-with-water-heater.html

Anode rod is located on top in separate port.
Anode keeps tank from rusting.

Year of Rheem water heater manufacture shows 3rd and 4th digit of serial number.

Nov 25, 2012 | Water Heaters

1 Answer

I have a Rheem 82vs50-2. Can this heater's elements be wired continuous for 9.0kw and is there any mfr documention that allows continuous wiring of this heater


You have dual element 240Volt tank-type electric water heater.
You want to change wiring from non-simultaneous to simultaneous.
Copy following link for exact internal wiring diagram, and external wiring change: Remember the wire from breaker box will not support both elements without tripping breaker, so you will need additional 30 amp breaker and 10 gauge wire, or single 50 amp breaker and 6 gauge wire.
http://waterheatertimer.org/How-to-wire-water-heater-thermostats.html#simultaneous
http://waterheatertimer.org/Color-codewire2.html
http://waterheatertimer.org/Figure-Volts-Amps-Watts-for-water-heater.html

Sep 23, 2012 | Rheem Water Heaters

1 Answer

Can the Rheem PTG2-42PVN be used with propane gas?


I believe PTG2-42PVN is natural gas.
Rheem site does not show that model number.
As a general rule, Rhemm does not recommend converting NG to LP and LP to NG

Contact Rheem. 1-800-432-8373
http://www.rheem.com/products/tankless_water_heaters/customer_support/
http://www.rheem.com/products/tankless_water_heaters/
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

Jun 24, 2011 | Rheem Tankless Hot Water Heater...

1 Answer

Rheem 40 gal. elct. have 220 at both elements all the time but only one drawing?


Your testing may be off here. Or you might have special order 'simultaneous' wired water heater.

Water heaters with two elements are 240V.
Elements test for 120V at all times, but with ordinary non-simultaneous water heater, only one element at a time has 240. This is called non-simultaneous operation.
Open links below for understanding of water heater operation.
http://waterheatertimer.org/How-it-works.html
http://waterheatertimer.org/How-water-heater-thermostats-work.html
http://waterheatertimer.org/B220C.html

If both elements were drawing 240 at one time, then upper thermostat is bad, or else your water heater is wired for simultaneous operation, and one of the elements is burned out.
http://waterheatertimer.org/How-to-test-water-heater-element.html
Your tank might be wired for simultaneous operation, if water heater was special order from Rheem, or if somebody changed wiring and set lower thermostat-and-element on a separate circuit breaker.

If you have simultaneous operation, then you would have 2 circuit breakers and 2 wires going to water heater or one 50 amp breaker with 8 gauge wire to heater. If this is the case, then both elements could test for 240V and one of the elements is bad, and thermostats are ok.

If you have ordinary Rheem water heater, then it is wired for non-simultaneous operation where only one element is ON at a time. This is called non-simultaneous operation and you can check because water heater has one circuit breaker rated for 20 or 30 amps.

Rheem elements are 4500Watts.
If both elements were ON at same time, that would be 9000Watts, which would trip typical water heater 20-30 amp circuit breaker.
9000Watts divided by 240 volts = 37.5 amps
So if upper thermostat is bad, and it is turning on both elements so they both test for 240, then thermostat is bad, but also one of the elements has to be bad.
Or test is inaccurate.
Interesting puzzle.

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

Dec 09, 2010 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

Water is not hot, doesn't last long. Thermostats turn elements on when turned up. Elements show 230 when on.


Lower element can be burned out and still read 230V across screws

1) We know thermostats are working because elements test 230V.
2) We know upper element is working because tank has some hot water.
If upper element is burned out, tank will have no hot water.
http://waterheatertimer.org/How-it-works.html

3) Here's how to test lower element:
http://waterheatertimer.org/How-to-test-water-heater-element.html

4)Here's how to replace element
Rheem element is 4500Watt bolt-in type
http://waterheatertimer.org/How-to-clean-sediment-out-of-electric-water-heater.html

5) Rheem manual says: Heaters furnished with standard 240 volt AC, single phase non-simultaneous wiring, and 4500 watt upper and lower heating elements.
http://waterheatertimer.org/pdf/Rheem-spec-sheet.pdf

geno_3245_94.jpgRheem 4500Watt element

Nov 21, 2010 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

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