58
Please contact Noritz America if more information is needed fo
(Phone # : 866-766-7489)
Disconnect
Connect
FLUSH
*****The connector is located behind
the Circuit Board Plastic Cover.
The connector color is blue and
labeled “FLUSH”.
(Ex . NRC711- DV )
FLUSH
Data
Display
< 2. Flushing the Heat Exchanger >
1. Open the Front Cover.
2. Connect the “blue connector*****” f
.
Flashing
Please check whether the reverse connection of the hose (H1) and (H3) if the display number will not change.
In that case
ow ay be under 1.5 gallons per minute.
3. Then the code “CCC” is displayed on the Data Display.
4 . Tu r n
water heater
for 1 hour at a rate of 1.5 gallons per minute or more.
5. The code “C60” is displayed on the Data Display when the wa
ow of the
When 1 minute passes, the code “C60” will change to “C59” on the Data Display.
6. When 1 hour passes, the code “C00”
y.
Do not disconnect the “blue connector f
” on the Circuit Board.
7 . Tu r n
p.
1 minute passes
ow
< 3. Cleaning the Heat Exchanger >
rinsed and cleaned out of the water heater.
Below is the way to r
1. Remove both drain hoses (H2 and H3) from the bucket. And then place the drain hose (H3)
into the sink or outside to drain.
2. Close the drain valve (V3) and then open the water inlet valve (V1).
Do not open the fresh water outlet valve (V2).
3. Clean the water heater with fresh water for 3 minutes or more.
(Needs to ha ve enough time to clean the water heater.)
4. Close the drain valve (V4) and then remove the drain hose (H3)
from the drain valve (V4).
5. Remo ve the drain hose (H1) from the drain valve (V3).
6. Disconnect the “blue connector fo
” on the Circuit Board.
The code “C00” goes out on the Data Display.
7. Close the Front Cover.
8. Open the gas supply valve and water outlet valve (V2).
9 Check for correct operation of the water heater.
The water heater can not operate
if the “blue connector” f
connected.
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