Navien NCB-190/060H, Руководство по установке и эксплуатации

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81 Installing a Cascade System
Note
●
To add additional sub water heater
at a later time, repeat step 3.
●
To cancel the cascade
communication settings, on the
main NCB-H boiler panel, press the
Back button ( ) and the Menu
button ( ) simultaneously for
3 seconds, and then select
“4. Cascade Status and Set”. Then,
select “2. Cascade System Removal”
and select “YES”. The water heaters
will revert to independent operation.
To reassign the main NCB-H boiler,
repeat steps 1-5.
3. On the sub NPE-A2 water heater panel, press
and hold the OK button ( ) for 3 seconds on
the sub unit. Then, the ID 1. Allocated! message
will appear on the sub unit’s front panel display.
When the water heater is set to a sub unit, the
icon will appear on the display.
4. Repeat step 3 to configure the rest of the sub
water heaters in the system.
5. On the main NCB-H boiler panel, press the
Command dial ( )
button when the following screen appears. All
the display screens on the configured water
heaters will return to the temperature display.