Start-Up Procedure - Fondital WHDHP 200 SS Manual De Instalación, Uso Y Mantenimiento

Non-return valves must NOT be installed between the safety valve and the expansion vessel.
In general, in order to protect the product and the system, it is always advisable to install an expansion vessel as specified above.
Inflate the diaphragm chamber of the expansion vessel as instructed by the manufacturer.
Install a thermostat for the controlling of the water temperature with a maximum calibration of 80°C and regulate it at a temperature
of about 60°C in order to reduce the formation of scaling..
Before connecting the tank to the mains, fill it with water as follows:
• turn on the cold water tap;
• turn on a hot water tap (e.g. bath, sink, etc.), bleed air from the system and wait for a constant flow of water from all the water taps;
• check all the plumbing connections for leaks.
When the local water is hard (>20 °F), it is advisable to install specific devices to prevent excessive scale build-up.
Please note that some of them are similar to non-return valves, which means that a suitable expansion vessel must be provided.
The tank 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 recir-
culation 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.
• 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.

5. START-UP PROCEDURE

When the tank has been installed, fill it with cold water for the DHW system and turn on a tap to bleed air from the system.
Check periodically that all the control and regulation devices are in proper working order.
WARNING
The tank must be started up by a qualified service engineer.
Filling the heat exchanger
The heat exchanger element is connected to the heating system, so to ensure that water is circulating inside merely check that the
water pressure inside the heat generator is high enough for it to operate correctly.
Refer to the heating generator instructions for further details.
Filling the tank
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.
Emptying the tank
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.
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