Advertisement
The Girard Tankless Water Heater operates differently than tank water heaters.
There are procedures that need to be done for the Water Heater to perform properly. The same is true for a tank
water heater, but it is less critical for the tank model. Remember, the Girard Tankless Water Heater is giving
immediate HOT water as you need it also, it has no recovery time and it is not storing a tank of pre-heated water.
The Girard Tankless Water Heater will heat incoming water approximately 40 to 60 degrees depending on the
water flow rate. The typical shower temperature is between 98 – 104 degrees. As a comparison a hot tub is
usually set between 103 – 106 degrees.
To check for the proper temperature rise (inlet cold water temperature to outlet hot water temperature) it is
necessary to use a thermometer. Use a digital thermometer which provides immediate temperature readings.
These are available at most discount/department stores in the kitchen utensil section.
DON'T trust your hands for temperature tests since hands don't feel heat like the rest of your body.
OPERATING PROCEDURE
Purge all of the air from all Cold and Hot water lines by opening up the faucets. Kitchen, bathroom sink,
showers, outside shower/water faucets and washing machine water lines if applicable. Be sure to turn
OFF the outside shower faucet rather than just closing the shower head OFF button. This procedure
should be performed whenever the water lines have been emptied/drained.
Go to the kitchen faucet and turn on the COLD water and note the temperature (allow sufficient time to get
a valid reading). Let the water run into a cup and place the thermometer probe into the cup. Turn OFF the
COLD water faucet and make a note of the COLD water temperature.
Turn the Water Heater ON – ON/OFF Switch is located outside in the Water Heater compartment. You can
leave this switch ON all season since it only draws power when a demand for HOT water.
Turn Mode Switch to AUTO.
At the kitchen sink, turn the HOT water faucet ON to about a medium water flow. Allow sufficient time for
the HOT water to travel from the Water Heater to the faucet.
Check the HOT water temperature. Let the water run into a cup and insert the thermometer probe into the
cup. At the medium water flow rate you should see approximately a 40+ degree temperature rise. You can
gradually adjust the HOT water flow (a very small adjustment) to adjust the HOT water temperature; don't
look at the knob/lever but at the actual water flow. Allow sufficient time for the water to travel from the
Water Heater to the faucet after each adjustment. Try to achieve a temperature up around 110 – 115
degrees. Let it run for a few minutes to confirm that the temperature is maintaining.
The Water Heater will provide approximately a 40 – 60 degree temperature rise (from inlet water
temperature) depending on the Hot water flow rate. So, if the inlet water temperature is 55 degrees, you
should have Hot Water from approximately 95 degrees to 115 degrees (depending on the Hot Water flow).
NOTE: If the water temperature starts cycling from Hot to Cold and then back to Hot it means the Water
Heater is limiting so increase the hot water flow. The Water Heater has an Emergency Cut Off sensor that
turns the burner off at approximately 122 degrees to prevent scalding.
If you achieve the various temperatures at the kitchen sink move to the shower and perform the same
test. Note – Certain Shower heads/fixtures may vary the results due to water flow/pressure.
Contact your Girard Dealer or Service Center if you can't achieve the proper temperatures rises.
Since the Girard Tankless Water Heater does not have a tank it does not need to pre-heat and store water
to 130 to 140 degrees. Tank water heaters must heat the water hotter since they are trying to make 6, 10
or 12 gallons of Hot water last longer (so you can mix it with cold water to achieve the proper hot water
temperature) and allow the end user a few minutes of Useable Hot Water temperatures. With the Girard
Tankless Water Heater it is not necessary to "super-heat" the water since you do not have to mix Hot
water with Cold water to achieve the Useable Hot water temperatures; it will provide all the Useable Hot
water you need and will only draw power (to make that Hot water) when there is a demand for Hot Water.
GIRARD TANKLESS WATER HEATER
END USER GUIDE
OPERATING INSTRUCTIONS FOR END USER
Hide quick links:
Advertisement
