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12.2.5.2 Discharge
the
Water
For Domestic Hot Water Tank
1 Turn OFF power supply.
2 Set the Domestic Hot Water Tank Discharge
(Drain Tap) to “OPEN”.
3 Open Tap / Shower to allow air inlet.
4 After discharge, set Domestic Hot Water Tank
Discharge (Drain Tap) to “CLOSE”.
12.2.6 Reconfirmation
WARNING
Be sure to switch off all power supply before performing each
of the below checkings.
12.2.6.1 Check Water Pressure
*(0.1 MPa
= 1 bar)
Water pressure should not lower than 0.05 MPa (with
inspects the Water Pressure Gauge). If necessary add
water into Tank Unit (via Tube Connector
a
).
12.2.6.2 Check Pressure Relief Valve
Check for correct operation of Pressure Relief
Valve 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 finish checking.
In case the water keep on draining out from the
Tank Unit, switch off the system, and then contact
your local authorized dealer.
12.2.6.3 Expansion Vessel Pre Pressure
Checking
For Space Heating / Cooling
Expansion Vessel 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. (field supply)
Please keep the installation height difference of
system water circuit within 10 m.
12.2.6.4 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.
WARNING
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 finish.
12.2.7 Installation of Remote Controller as
Room Thermostat
Remote Controller mounted to the Tank Unit can
be moved to the room and serve as Room
Thermostat.
12.2.7.1 Installation
Location
Install at the height of 1 to 1.5 m from the floor
(Location where average room temperature can
be detected).
Install vertically against the wall.
Avoid the following locations for installation.
1 By the window, etc. exposed to direct sunlight
or direct air.
2 In the shadow or backside of objects deviated
from the room airflow.
3 Location where condensation occurs (The
Remote Controller is not moisture proof or drip
proof.)
4 Location near heat source.
5 Uneven
surface.
Keep distance of 1 m or more from the TV, radio
and PC. (Cause of fuzzy image or noise)