CHARGING AND
5
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
1. Set the Domestic Hot Water Tank Discharge (Drain Tap)
"CLOSE".
"CLOSE"
Domestic Hot Water Tank Discharge (Drain Tap)
2. Set all Tap / Shower "OPEN".
3. Start fi lling water to the Domestic Hot Water Tank via Tube
Connector i.
After 20~40min, water should fl ow out from Tap / Shower.
Else, please contact your local authorized dealer.
Check and make sure no water leaking at the tube
4.
connecting points.
5.
Set the Domestic Hot Water Tank Discharge (Drain Tap)
to "OPEN" for 10 seconds to release air from this pipeline.
Then set it "CLOSE".
Turn the Safety Relief Valve knob counterclockwise slightly
6.
and hold for 10 seconds to release air from this pipeline.
Then recover the knob to original position.
Ensure Step 5 & 6 is carried out each time after charging
7.
water to Domestic Hot Water Tank.
To prevent back pressure from happening to the Safety
8.
Relief Valve, do turn the Safety Relief Valve knob
counterclockwise.
For Space Heating / Cooling
1. Turn the plug on the Air Purge Valve a outlet anticlockwise by
one complete turn from fully closed position.
Air purge valve a
2. Set the Pressure Relief Valve b level "DOWN".
Lever
Turn up
Pressure relief valve b
3. Start fi lling water (with pressure more than 0.1 MPa (1 bar)) to
the Space Heating / Cooling circuit via Tube Connector g. Stop
fi lling water if the free water fl ow through Pressure Relief Valve
Drainage
.
h
4. Turn ON the Tank Unit and make sure Water Pump 2 is running.
5. Check and make sure no water leaking at the tube connecting
points.
8
to
g
"OPEN"
g
Plug (turn
anticlockwise by
one complete turn)
Pressure relief
valve b
DISCHARGE THE WATER
For Domestic Hot Water Tank
1. Turn OFF power supply.
2. Set the Domestic Hot Water Tank Discharge (Drain Tap)
"OPEN".
3. Open Tap / Shower to allow air inlet.
4. Turn the Safety Relief Valve knob counterclockwise slightly and
hold it until all air is released from this pipeline. Then recover the
knob to original position after ensured the pipeline is emptied.
5. After discharge, set Domestic Hot Water Tank Discharge (Drain
Tap)
to "CLOSE".
g
RECONFIRMATION
6
Be sure to switch off all power supply before performing each of
the below checkings.
CHECK WATER PRESSURE
Water pressure should not lower than 0.05 MPa (with inspects the
Water Pressure Gauge d). If necessary add water into Tank Unit
(via Tube Connector g).
g
CHECK PRESSURE RELIEF VALVE b
•
Check for correct operation of Pressure Relief Valve b by
turning on the lever to become horizontal.
•
If you do not hear a clacking sound (due to water drainage),
contact your local authorized dealer.
•
Push down the lever after fi nish checking.
•
In case the water keep on draining out from the Tank Unit, switch
off the system, and then contact your local authorized dealer.
EXPANSION VESSEL 0 PRE PRESSURE CHECKING
For Space Heating / Cooling
•
Expansion Vessel 0 with 10 L air capacity and initial pressure of
1 bar is installed in this Tank Unit.
•
Total amount of water in system should be below 200 L.
(Inner volume of Tank Unit's piping is about 5 L)
•
If total amount of water is over 200 L, please add another
expansion vessel. (fi eld supply)
•
Please keep the installation height difference of system water
circuit within 10 m.
CHECK RCCB/ELCB
Ensure the RCCB/ELCB set to "ON" condition before check RCCB/
ELCB.
Turn on the power supply to the Tank Unit.
This testing could only be done when power is supplied to the Tank
Unit.
Be careful not to touch parts other than RCCB/ELCB test button
when the power is supplied to Tank Unit. Else, electrical shock
may happen.
•
Push the "TEST" button on the RCCB/ELCB. The lever would
turn down and indicate "0", if it functions normal.
•
Contact authorized dealer if the RCCB/ELCB malfunction.
•
Turn off the power supply to the Tank Unit.
•
If RCCB/ELCB functions normal, set the lever to "ON" again after
testing fi nish.
WARNING
*(0.1 MPa = 1 bar)
WARNING
to
g