83
For Quick Connect Multi-System
1. Open the front covers.
2. Connect the blue connector marked “FLUSH” for unit needing to be flushed.
(The unit is isolated from Quick Connect Multi System when the blue connector marked “FLUSH” for
flushing is connected. Not need to disconnect the Quick Connect Cord.)
6. Turn off the circulation pump.
7. Rinse and clean the flushing solution out of the
units in accordance with [Procedure 2]”.
(See the “Procedure 2.1-2.5”.)
3. Then the code or is displayed on
the Operation Display.
• “CCC” is displayed when the Combi Boiler’s
blue connector is connected.
• “FCC” is displayed when the Water Heater’s
blue connector is connected.
4. Turn on the circulating pump to circulate the
flushing solution through the units for 1 hour at
a rate of 1.5 gallons per minute or more.
5.
CCC
FCC
(e.g. The display when the both units are flushed at
the same time)
Do not disconnect the blue
connector marked “FLUSH” for
flushing.
C60
C59
C00
CCC
FCC
The code “C60” is displayed on
the Operation Display when the
Combi Boiler detects the flow of
the flushing solution.
When 1 minute passes, the code
“C60” will change to “C59” on
the Operation Display.
When 1 hour passes, the code
“C00” is flashing on the
Operation Display.
or
C50
CCC
Connect the Blue Connector of the
Combi Boiler
Detects the flow
(10 minutes pass)
C00
FCC
Connect the Blue Connector of the
Water Heater
The remaining time of flushing gives
indication priority to the connector
which is connected later.
Detects the flow
Flashing
(1 hour passes)
C60
8. Disconnect the blue connector marked “FLUSH”
for flushing. The Code “C00” goes out on the
Operation Display.
9. Close the front covers.
10. Open the gas supply valves and water outlet
valves.
11. Check for correct operation of the unit.
Water Heater’s
Water Drain Valve
NOTE
For Water Heater, place a bucket
under the unit to drain water from
the “Water Drain Valve”.
Carefully unscrew the “Water Drain
Valve” to rinse flushing solution out of
the unit for about 10 seconds. Then
close the “Water Drain Valve”.
Water Heater
Combi Boiler
FLUSH
Connect
Circuit Board
Quick Connect Cord
Do not need
to disconnect.
Operaon Panel
Circuit Board
Maintenance
Summary of Contents for GHQ-C3201WX-FF PB US
Page 9: ...9 Memo About the Combi Boiler ...
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