Install Instructions

T’stat information Continued-

The correct burners and thermostat may be purchased from the same supplier

that provided the water heater to you.

Installing the Burner: It is recommended that the burner be installed so that the

face of the burner head is between 1/8” to 5/8” from the sides of the inside wall of

the combustion chamber (see Figure 5). Note the top and bottom distances may

vary slightly due to the curvature of the

combustion chamber. The

recommended burners are designed so

the burner head will be at its optimal

distance to the combustion chamber.

The position of the burner head can be

checked by viewing it through the peep

hole using a mirror. The burner is

secured to the water heater by three

5/16” nuts.

Figure 5

Installing the Thermostat: This water heater comes with the thermostat well

installed in the tank. A Honeywell Aquastat needs to be installed. Refer to Table 1

for appropriate thermostat information.

Adjusting the Thermostat: When adjusting the thermostat it should be

remembered that lower temperature settings are more energy efficient. It is

suggested that the starting setting not exceed 120°F as displayed in Figure 6.

Thermostat adjustment instructions are as follows:

Honeywell Mechanical (L8100) thermostat: turn the dial clockwise to decrease

the temperature and counter-clockwise to increase the temperature.

Honeywell Electronic (L7103) thermostat: enter the adjustment mode by pressing

the “UP”, “DOWN”, and “I” buttons (see Figure 4) simultaneously for three

seconds. Press the “I” button until the feature requiring adjustment is displayed

(SET=Setpoint; °F-°C). Then press the “UP” or “DOWN”

buttons to move the

setpoint to the desired value. After 60 seconds, without any button inputs, the

control will automatically return to the READ mode.

CAUTION

Do not operate the burner if it is wet. If

the burner gets wet, have a qualified

technician examine the burner before

putting it back into operation.