Important Safety Information .......................................................................
2
Contents
.........................................................................................................
7
RC-9018M Operation Overview .................................................................... 8
Initial Operation
............................................................................................ 10
General Parts
Main Unit
...................................................................................................
11
Remote Controller
....................................................................................
12
System Check...............................................................................................
14
For All Systems
Clock Adjustment ...................................................................................... 16
Using the Water Heater
.............................................................................
17
Setting Hot Water Temperature
................................................................ 18
Automatic Water Heater “ON” or “OFF” Operation
............................... 20
Locking the Remote Controller................................................................
22
Customizable Settings <Misc settings>..................................................
23
For System [Rcrc]
Enabling Automatic Recirculation Operation ......................................... 26
Manually Starting Recirculation Operation ............................................
27
Setting the Recirculation System Operation Timer ............................... 28
Single Water Heater Only
Flow Meter Alarm
...................................................................................... 30
Preventing Damage from Freezing .............................................................
32
Regular Maintenance
................................................................................... 35
Troubleshooting ...........................................................................................
37
Follow-up Service ........................................................................................
42
Specifications ............................................................................................... 45
Default Settings ............................................................................................
47
Contents
Summary of Contents for NC1991-DVC
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