Installation Instructions
STEP 1: 
Drain the tank
Turn off the water 
and gas supply. 
Attach a garden 
hose to the drain 
valve and empty the 
tank. Turn on a hot 
water faucet to 
allow air into the system.
STEP 2: 
Disconnect 
the gas and 
water lines
Disconnect the gas 
line using two pipe 
wrenches at the 
union tting if the 
pipe is galvanized 
or at the are tting if the gas supply line is copper. 
Disconnect the water lines above the tank using 
two adjustable wrenches or pipe wrenches. If the 
piping was soldered into place, use a hacksaw or 
tubing cutter to cut the pipe. Make sure the cuts are 
straight.
STEP 3: 
Detach the gas 
exhaust from 
the ue hat
Using a screwdriver 
or nut driver, remove 
the screws 
connecting the vent 
to the water heater. 
Remove the old water heater. The water heater may 
be lled with sediment, so it may be heavier than a 
new one.
STEP 4: 
Set the new 
water heater 
in place
Install in an area with  
at least 6 inches of 
clearance on all 
sides for ventilation. 
Allow unobstructed 
access to the burner and controls. Place a 
carpenter’s level on the side of the water heater and 
level it with plastic shims if necessary. Reconnect 
the ue hat to the gas exhaust vent.
STEP 5: 
Install 
 water  line 
 connections
Measure and cut the 
water line 
connections to 
length. Reconnect 
the water line. 
A variety of installation kits are available to make 
this step easier.
STEP 6: 
Connect the 
gas supply line
Clean gas line 
threads with a wire 
bush or rag. Apply 
piping compound to 
the threads of the 
black pipes as you 
connect them. Assemble and tighten each tting 
with two pipe wrenches. Install the union tting last 
because it connects the new line to the existing 
line. When nished, open the gas supply valve and 
turn the water on. Turn on the water at the tank, 
then turn on one or more hot water faucets to 
bleed air out of the system. 
STEP 7: 
Test the water 
and gas lines 
for leaks
Fill a sponge with a 
mixture of liquid 
soap and water, then 
apply it to the new 
gas ttings and 
check for bubbles. Test all connections. If there is a 
leak, bubbles will form on the surface and you will 
have to ret the joint. Inspect water lines for leaks.
STEP 8: 
Light the pilot
Rotate thermostat 
knob to “pilot” 
position. Press the 
knob in and hold it 
while pressing the 
piezo spark 
generator button 
once every 10 seconds until pilot is lit. Continue to 
hold the thermostat knob down until the LED 
“STATUS” light begins to blink. Release the knob 
and rotate it to the desired temperature setting. Set 
the control at a temperature between 118 and 123
degrees.
If you need additional installation information, visit
RichmondWaterHeaters.com
HOW TO INSTALL A GAS WATER HEATER


