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TEMPERATURE ADJUSTMENT (24V CONTROL SYSTEM)
The water heater temperature setting is adjusted by using the control display mounted to the front of the water heater. The
water heater thermostat is set at the lowest setpoint of 70
°
F when shipped from the factory. The control display shows the
temperature setpoint in degrees Fahrenheit (
°
F) or degrees Celsius (
°
C), and the status of the water heater (“Idle” or
“Heating”). If the water heater is functioning normally, the display will also show “Operational”.
For energy efficient operation of your water heater, the suggested initial temperature setting is 120
°
F
(49
°
C).
During the
winter season, or any cold period, you may desire a higher temperature setting to adjust for the colder incoming water.
This adjustment, however, may cause additional condensation to form on the cooler tank surface. This does not mean the
tank is leaking. During summer months, the warmer incoming water temperatures will benefit the performance of your
water heater and reduce the amount of condensation developed.
Condensation does not mean your tank is leaking. Over 40% of reported tank leaks on installation are proven to be
condensation. To avoid unnecessary expense and inconvenience, make sure the tank is leaking before calling a service
person.
If t he w at er heat er display does not show ‘‘ Operat ional’’ in t he ‘‘ St at us’’ indicat or, t here may be an operat ing
malf unct ion w it h t he w at er heat er. If t his is t he case, a numeric code w ill be displayed. Ref er t o t he label next
t o t he display f or t he def init ion of t he error code and call your plumbing prof essional or service agent t o
service t he w at er heat er. Do not t ry t o reset t he w at er heat er w it hout having a qualif ied service person t o
diagnose and correct t he problem. If t he display is blank or does not show an error code, make sure t here is
pow er t o t he w at er heat er.
Set t ing t he w at er t emperat ure t o t he maximum set point can result in scalding hot w at er delivered t o t he
f aucet s. It is highly recommended t hat t he maximum set point be adjust ed t o t he low est t emperat ure possible
f or t he needs of t he inst allat ion. See f ollow ing sect ion t o change t he maximum set point limit (max set point ).
Make sure t he w at er heat er cont rol display is not in a public area t hat can result in t he t emperat ure set t ings
WARNING
When t he maximum set point is reached, t he display w ill show ‘‘ Max Set point ’’ w it hout t he set point value.
The maximum set t ing is equal t o approximat ely 180
˚
F
(82
˚C).
The def ault t emperat ure set point f rom t he f act ory is 70
˚
F
(21
˚C).
NOTICE
