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INSTALLATION
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Step 3: Cable connection and DIP switch change
The water heater unit can be connected with other units up to 16 units using communication cables.
After choosing one of the units as the master unit, connect the cables and change the DIP switch 2
on the PCB as below. During step 1, the power supply should be OFF.
Cable connection and DIP switch set-up
- cascade communication cable PCB connecting adapter PCB CN9 port.
Summary of Contents for NR-180A
Page 5: ...SAFETY Safety Instructions 5 this...
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Page 20: ...INSTALLATION Locating the Water Heater 20 or follow local codes...
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Page 24: ...INSTALLATION Pressure Relief Valve 24 Pressure Relief Valve Shut off Valve...
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Page 32: ...INSTALLATION Venting 32 ground or local codes...
Page 33: ...INSTALLATION 33 Venting...
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Page 35: ...INSTALLATION 35 Venting Clearances 1 Natural Natural...
Page 37: ...INSTALLATION 37 Venting Indoor Installation...
Page 39: ...INSTALLATION 39 Venting CONCENTRIC VENT TERMINATION 1 Sidewall Installation 2 Roof Installtion...
Page 40: ...INSTALLATION Venting 40...
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Page 44: ...INSTALLATION PCB Board Settings 44...
Page 45: ...INSTALLATION 45 CascadeConnectionandSet upProcedures...
Page 46: ...INSTALLATION 46...
Page 47: ...INSTALLATION 47...
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Page 68: ...OPERATION Navien America Inc Limited Warranty 68 12 Grains of hardness may...
Page 69: ...OPERATION 69 Model Description Legend...
Page 70: ...OPERATION General Parts 70 Condensate Water...
Page 71: ...OPERATION 71 General Parts Condensate Water...
Page 72: ...OPERATION Remote Controller 72 Hot Water In Use Indicator...
Page 74: ...OPERATION OPERATION Setting the Clock 74 Hour Minute...
Page 79: ...OPERATION 79 A Series Recirculation Timer Setting 74...
Page 81: ...OPERATION 81 Lock Function Setting...
Page 82: ...OPERATION Well Pump setting function 82...
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Page 89: ...OPERATION 89 A Series External Recirculation Mode...