Giona ISSWWXA 200, Instructions For Installation, Use And Maintenance Manual

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EN
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3) OPERATION
a) Starting
After installation, fill the exchanger with water for domestic use and for heating, proceeding as follows:

Fill with water for heating and vent the system;

Fill with water for domestic use by means of the cold water inlet and vent by opening a hot water drawing point.

Install the thermostatic device in the special housing provided on the water tank (see fig. 1)

Start the boiler.
b) Filling the coil
The appliance exchange coil is connected to the boiler circuit, therefore to guarantee the circulation of liquid
inside it, make sure the water pressure inside the boiler is sufficient for its correct operation.
NB: See the relevant instructions for correct boiler operation.
c) Filling the appliance
To carry out this operation, the system must be fitted with a domestic circuit mains filler cock.
Then, open the exchanger filler cock (see above) and vent the circuit by opening a drawing point.
d) Emptying the appliance
To carry out emptying, close the mains filler cock, connect a hose to the drain union and place the other end in an
area provided with an external drain.
Open a drawing point and let the water run, then open the drain union and complete emptying.
4) MAINTENANCE AND CLEANING
Empty the unit before carrying out any maintenance operation.
a) General instructions

To clean the external parts of the exchanger, use a cloth moistened with water, possibly with the addition
of liquid soap;

Do not use detergent powders or solvents (abrasives of any type, petrol and similar products);

In case of installation in places subject to freezing, the appliance must be kept operating or completely
drained;
b) Tank inspection and cleaning inside
To clean inside the tank, empty the appliance, remove the cover by undoing the screws of the plastic cap.
Remove the plate from the inspection opening.
Cleaning can be carried out with a jet of water and, if necessary, using a suitable plastic or wooden tool to
remove any stubborn deposits. Re-install the inspection plate. Align the gasket carefully to the inspection plate
(not the tank). Tighten bolts by repeating cross scheme sequence in small increments until 6 ft-lbs is reached
using torque wrench. DO NOT OVERTIGHTEN. This could damage or extrude the gasket, or distort the plate.
Fill domestic water and check inspection plate for leaks.