Start-Up Procedure; Filling The Heat Exchanger; Filling The Appliance; Emptying The Appliance - Fondital WHPS BA SS Serie Manual De Instalación, Uso Y Mantenimiento

The appliance can have a recirculation pipe connected to it. If this is done, the pipe must be insulated.
For recirculation it is necessary to install a pump fitted with a timer or a minimum contact thermostat to activate cooling of the recirculation water.
If the coupling is not used, a seal cap must be provided.
The inlet and outlet pipes must be connected at the established points of the heat exchanger.
- Check that the thermal output of the heat generator is at least 15% higher than the thermal output of the water heater coil.
- If there are any impurities in the mains water, provide a suitable filter and check that the circulation pumps have a sufficient flow rate and pressure
head and work efficiently.
- Make sure the thermostat and thermometer probes are positioned correctly.
- Check that the thermostat controls operate correctly.
Sample layouts are shown in fig. 8 and 9.
8.

START-UP PROCEDURE

When the water heater has been installed, fill it with cold water for the DHW system and turn on a tap to bleed air from the system.
Then fill with water for the CH and/or solar panel system and turn on a hot tap to bleed air out.
Regulate the DHW temperature in the water heater on the instrument panel as instructed. The recommended temperature setting is 60-65°C.
Check periodically that all the control and regulation devices are in proper working order.
The water heater must be started up by a qualified service engineer.
8.1.

Filling the heat exchanger

The heat exchanger element is connected to the boiler circuit, so to ensure that water is circulating inside merely check that the water pressure
inside the boiler is high enough for it to operate correctly.
Refer to the boiler instructions for further details on the boiler operation.
8.2.

Filling the appliance

This requires a tap for filling the DHW circuit. Turn on the heat exchanger tap and turn on any tap to bleed the system..
Then open the loading tap of the heat exchanger and bleed the circuit by opening a water tap.
8.3.

Emptying the appliance

Turn off the mains filling tap, connect one end of a hosepipe to the drain outlet and place the other end in an external drain.
Turn on a tap and leave it on; open the drain outlet and allow the system to empty completely.
Always empty the appliance before carrying out any maintenance work.
9.

MAINTENANCE AND CLEANING

9.1.

General points to remember

The outside of the water heater can be cleaned with a soft cloth and a suitable cleaning product. Do not use abrasive products, solvents, petrol,
alcohol or the like.
Do not use water.
The 1500 and 2000 litres boilers are equipped with a 2-electrode electronic anode.
The 800 and 1000 litres water heaters have a second magnesium anode on the flange in order to assure the anticorrosive protection of the boiler.
The safety anode mounted on the flange must be checked at least once a year. This can be done directly through the flange opening, or from
outside using a tester.
If the anode is exhausted, replace it with a new one.
If the appliance is used in a room where the temperature may go below zero, it must be left running or emptied completely.
9.2.

Inspecting and cleaning the inside of the tank

To clean inside the tank, drain the appliance, unscrew the screws in the plastic cap and remove the cover.
Remove the counter-flange from the inspection openings.
Take care during cleaning not to damage the enamel coating of the tank and heat exchanger (heating coil).
Clean with a jet of water. If necessary use a suitable tool made of wood or plastic to remove any build-up of scale.
Lastly, remount the flange and gasket (replace the latter if damaged), fill the tank and check for leaks from the flange and tap.
Fill the appliance, referring to the start-up instructions, and check for leaks.
If the local water is particularly hard, it is advisable to de-scale the water heater at least once a year.
Verify periodically the functionality of the safety valve and of the temperature control thermostat and all the accessories that concur to the
functioning of the appliance.
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