Setting The Temperature Of Dhw Storage Tank Usage Mode - Navien NR-20DU Manual

Setting the temperature of DHW storage tank usage mode

1
Press the Timer and OK button simultaneously for
Storage Tank mode.
Cascade On-unit (S OU) value is displayed on the
LCD screen and is ready to be set.
This is not applied when models are set
Note
in internal or external recirculation mode.
The S OU and S FU values will determine how the units in a cascade system will stage and operate based on temperature
value.
2
sec
2
or
Press the Up or Down button to adjust the value
by 1.
(S FU) temperature settings mode.
Setting value ranges from 0 to 60. The
Note
water heaters in the cascade will operate
more frequently when this value is higher.
(10 is recommended)