Navien NPE-32AWE, Installation Manual

Page: 40 / 68

40 Insta ll ing a Cas c ading S ystem
2. On the slave water heater, press and hold the Diagnostic
and Down
appear on the display to confirm that this water heater is set
as a slave.
3. R epeat step 2 to configure the rest of the slave water heaters
in the system.
4. On the master water heater, press and hold the Diagnostic
and Up
screens on the configured water heaters will return to the
temperature display.
Note
To add additional slaves at a later time, repeat
step 2.
To cancel the cascading communication setup,
on the master water heater, press and hold
the
Diagnostic and Reset buttons for more
than 5 seconds. The water heaters will revert
to independent operation.
R epeat steps 1-4 to
reassign the master water heater.