Panasonic AQUAREA WH-ADC0912K6E5AN - Maintenance Guide; 17.1.2 Maintenance Menu; 17.1.3 Custom Menu

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17. Maintenance Guide
In order to ensure safety and optimal performance of the Tank Unit, seasonal inspections on the Tank Unit, functional
check of RCCB/ELCB, field wiring and piping have to be carried out at regular intervals. This maintenance should be
carried out by authorized dealer. Contact dealer for scheduled inspection.
1 Charging and Discharging the Water
Make sure all the piping installations are properly done before carry out below steps.
Charge the Water
 For Domestic Hot Water Tank
a) Set the Domestic Hot Water Tank Discharge (Drain Tap)
to “CLOSE”.
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b) Set all Tap / Shower “OPEN”.
c) Start filling water to the Domestic Hot Water Tank via Tube Connector
c
.
After 20~40min, water should flow out from Tap / Shower.
Else, please contact your local authorized dealer.
d) Check and make sure no water leaking at the tube connecting points.
e) Set the Domestic Hot Water Tank Discharge (Drain Tap)
to “OPEN” for 10 seconds to release air
from this pipeline. Then set it “CLOSE”.
f) Turn the Safety Relief Valve
knob counterclockwise slightly and hold for 10 seconds to release air
from this pipeline. Then recover the knob to original position.
g) Ensure Step 5 & 6 is carried out each time after charging water to Domestic Hot Water Tank.
h) To prevent back pressure from happening to the Safety Relief Valve
, do turn the Safety Relief
Valve
knob counterclockwise.
 For Space Heating / Cooling
a) Turn the plug on the Air Purge Valve ⑭ outlet anticlockwise by one complete turn from fully closed
position.
Air purge valve ⑭
Plug (turn
anticlockwise by
one complete turn)
b) Set the Pressure Relief Valve ⑮ level “DOWN”.
Pressure relief valve ⑮
Pressure relief valve ⑮
Lever
Turn down
or
Pressure relief valve
⑮
Lever
Tu r n do wn
Pressure relief valve ⑮
c) Start filling water (with pressure more than 0.1 MPa (1 bar)) to the Space Heating / Cooling circuit via
Tube Connector
a
. Stop filling water if the free water flow through Pressure Relief Valve ⑮
discharge hose.
d) Turn ON the Tank Unit and make sure Water Pump ④ is running.
e) Check and make sure no water leaking at the tube connecting points.
f) The water may drip from this discharge hose. Therefore must guide the hose without close or block
the outlet of the hose.