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My limited research indicates this heater is designed for USA electrical systems. That would mean single phase, 240/208 volts, 60 Hz. The drawings I reviewed shows a 2 pole, 240 volt breaker feeding each heating circuit. That means no "neutral wire" goes to the heater and therefore no 120 volts is needed. This is good. Kenya's system is single phase, 240 volts, 50 Hz. The heater should work reasonably well on the African system. Connect the power just like you would in the US.
Control unit or flow transducer. If the transducer(impeller in the clear tube) is spinning freely with waterflow, then the circuit board needs to be replaced.
Most water heaters heat the water on top first. This is because the warm water will rise to the top and the hot water is drawn off the top. When the upper thermostat turns the top element off then the bottom one comes on. It makes it sound like there is a problem with the top element. Disconnect electric, and read the resistance on the element terminal to terminal. If it shows open the you have a bad element. Did you make sure the heater was completely full before turning the electric? You must run the hot faucets to remove all the air from the top of the tank before turning on the electric. Elements will burn out quickly if out of the water.
Thanks for your reply. The order in which you connect the wires 1-2-3 does not matter, all three terminal block screws will accept any one of the hot wires from the breaker, one hot wire per each terminal screw.
No. You have to find out if you have 3 phase or single phase power. If this is a new unit you will find a wiring diagram inside the front cover. 3 phase power has 3 "hot" wires. Single phase has 2 "hot" wires. There is a big difference when you hook it up wrong. I don't know if this is a new installation or if you are replacing an old one. The terminals are numbered for 3 phase. If you look in your breaker box, 3 phase 208 will haven a breaker with 3 spaces hooked together by one bar. Single phase will have two spaces hooked together by a bar. So if the breaker kicks out it will flip all 3 space on 3 phase or 2 spaces on single phase. If you already have wires to the location of the booster heater, you may have to use single phase if that is all that is at that location. If you have single phase power you will have to look at the wiring diagram and you will see the terminal block represented for both single and 3 phase. Normally running from the terminal block will be six wires marked 1 through 6. The wireing diagram will say something like "for single phase put 1,3,5 on terminal 1 and 2,4,6 on terminal 3. Leave terminal 2 out all together. Of course at this point your 2 hot wires will go to terminal 1 and 3. There are other considerations as well. With 3 phase the circuit wires will be smaller gauge and may not carry the current you need for single phase. This is a booster heater. You need to hook up your hot water line to go into the heater and the boosted hot water to your appliance. It will not work to heat your water for other purposes. It is meant to take 140 degree water and boost it to 190 degrees. Good luck, hope this helps
if its a 240 volt unit,then yes they are both 120 volts for each phase and the 240 volts for combined pair to each terminal on the units thermostats terminals,hope you have a white or green or both for a safety ground though just in case there;s plastic water lines between the supply and the unit
Hello,You are correct! Black/blue=black & Yellow=white 220volt single phase power.There are 3 wires for 3 phase power connection NOT the case in a home.Also an "off peak"timer option would use (black) only controlling the bottom element and (blue) controlling the top element.
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