Before You Start
Firstly, Determine whether you require a new water heater or if routine maintenance is sufficient. If you’re not getting hot water, it could be due to a faulty heating element or another issue with maintenance. Before embarking on a full replacement, conduct a quick maintenance assessment.
Secondly, If you have water on the floor or on top of the unit (as opposed to water leaking from a supply line above the unit), you will most likely require a new water heater. The data plate on your current tank contains size and energy specifications that can help you find a comparable unit. If your family’s size has changed, it’s time to think about upgrading or downsizing your electric water heater.
If you are unsure about installing a water heater, contact a hot water system repair and installation service professional.
Installing a New Water Heater:
The steps below will walk you through the process of installing an electric water heater.
Step 1: Install the New Heater
Insert the new water heater into a drain pan. By routing a pipe from the drain pan to a drain, you can avoid flooding.
Step 2: Install the T&P Valve
If your water heater did not come with a new T&P relief valve, simply twist it in now. It may be included in the box, or you may need to purchase it separately. Don’t use the old valve again.
Step 3: Connect the Discharge Pipe
Place the T&P relief valve discharge pipe toward the floor or drain. If there isn’t a drain beneath the pipe, place a bucket underneath to catch any water that drips from the discharge pipe. Reduce the pipe’s height to no more than 6 inches above the bucket.
Step 4: Connect the Water
For water connection, use a flexible hose kit. Tape the threads of the heat trap nipples with the plumber’s tape. Then connect the hoses.
Step 5: Install the Fittings
Some applications necessitate the use of dielectric fittings to prevent corrosion between two different metals. The specifics of installation in your area should be detailed in your area’s local codes and ordinances.
Step 6: Tighten the Fitting
Tape the connector body threads with the plumber’s tape. Attach the fitting to the hose and then hold it up to the pipe. It should have some wiggle room. Mark and cut the pipe, taking care to remove any burrs.
Step 7: Screw the Compression Nut in place.
Attach the compression nut and ring to the pipe. Tighten the nut after inserting the pipe into the fitting.
Step 8: Install Seismic Straps
Seismic straps are required in some areas to prevent earthquake damage. These straps support the water tank against the wall, preventing the unit from tipping over. Skip to the next step if you are not in an earthquake zone.
Step 9: Fill the Tank
Open the hot side of the nearest faucet and remove the aerator. Turn on the water supply slowly and inspect the connections around the water heater for leaks. Fill the tank if there are no leaks. If there are any leaks, turn off the water and gently tighten the connections. Repeat this process until the connections are secure.
Step 10: Flush the Tank
The tank is full when water flows from the faucet. Allow the water to run for three minutes to clear the tank of air and debris.
Step 11: Connect the Wiring
Remove the cover from the junction box. Connect the green ground screw to the ground wire. As a guide, refer to your masking tape connection notes. Wire connectors should be used to twist the wires together.
Step 12: Turn on the power.
Replace the junction box cover and power up the circuit. If your new water heater does not have power, turn off the circuit and inspect the connections.
Step 13: Determine the Temperature of the Water
Set the temperature to 120 degrees Fahrenheit according to the manufacturer’s instructions. It may take several hours to heat the water at first.
Step 14: Inspect the Discharge Pipe
Check the discharge pipe that runs out of the T&P relief valve after a few hours. A dripping pipe typically indicates that the pressure is too high. Reduce the pressure to less than 80 psi.
Step 15: Examine Aeration
If a faucet stops working after installation, remove the aerator and allow the water to run for 2-3 minutes. Rinse and replace the aerator.
Andrew Parker