Technical data

4.5 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.

If the appliance is in operation, switch it oﬀ with the CCP (if present) or DDC (if 1.

present), or the consent switch and wait for the shutdown cycle to terminate com-

pletely (approximately 7 minutes).

Disconnect the appliance from the power supply, putting the external disconnec-2.

tion switch in the OFF position (see GS in Figure 6.6 Electrical wiring diagram → 50)

provided in the appropriate panel by the installation technician.

Close the gas valve.3.

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 two con-

ditions must be met:

make sure that the hydraulic plant connected to the appliance contains an ad-1.

equate percentage of glycol antifreeze (see Paragraph 5.6 FILLING OF HYDRAULIC

CIRCUIT → 34 and Table 5.3 Technical data for ﬁlling the hydraulic circuit → 36);

activate the antifreeze function, which runs the circulation pumps and the appli-2.

ance when water temperature is below 4°C or in case the outdoor temperature is

lower than 2 °C. To do this, contact your installer. This function requires the appli-

ance to be ALWAYS powered up (electricity and gas) and power failures excluded.

Otherwise the manufacturer declines all contractual and extra-contractual li-

ability for consequent damage.

Connecting the appliance before it is used again (to be carried out by the instal ler)

Before starting this procedure, the hydraulic system installation technician must:

ascertain whether the appliance requires any maintenance operations (con-•

tact your authorised Robur Technical Assistance Centre or consult Paragraph 7.2

MAINTENANCE → 77);

check that the water content of the plant is correct; if necessary, top up the cir-•

cuit to at least the minimum quantity (see Paragraph 5.6 FILLING OF HYDRAULIC

CIRCUIT → 34);

if necessary add, to the water of the system (free of impurities), inhibited monoeth-•

ylene glycol antifreeze in a quantity in proportion to the MINIMUM winter temper-

ature in the area of installation (see Table 5.3 Technical data for ﬁlling the hydraulic

circuit → 36);

bring the plant to the correct pressure, making sure that the pressure of the water •

in the plant is not less than 1 bar and not over 2 bar;