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3.5
PROLONGED PERIODS OF DISUSE
When the appliance is to be inactive for a long period, it is necessary to disconnect the
appliance before the period of disuse and reconnect it before it is used again.
To carry out these operations, contact a reputable hydraulic system installation
technician.
Disconnecting the appliance
You will need:
the appliance connected to the power/gas supply. Necessary equip ment
and materials.
1. If the appliance is in operation, switch it off with the CCP (if present) or DDC (if
present), or the consent switch and wait for the shutdown cycle to terminate
completely (approximately 7 minutes).
2. Disconnect the appliance from the power supply, putting the external disconnection
switch in the OFF position (see GS in Figure 5.5 Electrical wiring diagram on page
41) provided in the appropriate panel by the installation technician.
3. Close the gas valve.
Do not leave the appliance connected to power and gas supply if it is expected to remain
inactive for a long period.
If you wish to disconnect the appliance during the winter, one of the following three
conditions must be met:
1.
Make sure that the hydraulic circuit connected to the appliance contains
an adequate percentage of glycol antifreeze (see Section 4.6 FILLING OF
HYDRAULIC CIRCUIT on page 32 and Table 4.2 Percentage of monoethylene
glycol on page 33);
2. Empty the hydraulic circuit completely: for this purpose the circuit must be provided
with water drainage points that are adequately equipped, sized and located, to
allow the water present in the circuit to drain away completely and to allow the
correct disposal of any glycol antifreeze present. For these operations, contact a
reputable hydraulic system installation technician;
3.
Activate the antifreeze function, which runs the circulation pumps and the
appliance under 6°C. To do this, contact your hydraulic system installation
technician. This function requires the appliance to be ALWAYS powered up
(electricity and gas) and power failures excluded.
Otherwise the
manufacturer declines all contractual and extra-contractual liability for
consequent damage.
