Buffer Tank ("A" Models Only) - Navien NPE-180A Service Manual

4.11.14 Buffer Tank ("A" models only)

Part
To provide hot water at a steady temperature and to operate without a minimum flow rate with the use of the
Function
internal circulation pump.
Failure Event Cracking and/or water leakage due to wear.
Effects Temperature fluctuations in the hot water outlet and/or leaking.
Error Code
Diagnostic Visual inspection : Check the mini buffer tank for any cracks.
Color/Number
of wires
Check Point
N/A
N/A
System Details 71