Ariston 80 L Manual técnico - Página 15

Procurar online ou descarregar pdf Manual técnico para Aquecedor de água Ariston 80 L. Ariston 80 L 39 páginas. Heat pump water heater split

Four ways valve (*)

It is the valve that actives the DEFROST process, it canalizes the fluid overheated

coming from the compressor in the evaporator through a capillary, in order to heat

the evaporator and melt the ice that clogged it.

The valve, is magnetically opened by the spool that receives the electric signal from

the electronic card "mainboard."

During the normal heating cycle, the valve is OFF, the alimentation occurs only in

Defrost cycle.

Refrigerant fluid R-134 a

The heat transfer is materially effectuated by refrigerant fluid that circulates within the circuit, called circuit refrigerator.

A refrigerant fluid has therefore the characteristic to absorb heat, evaporating on reduced temperatures and, subsequently,

gives this heat condensing to a temperature and a more elevated pressure.

The refrigerant fluid circulates inside the circuit by the action of the compressor.

The fluid HFC R-134 is less toxic in comparison to other CFCs and HCFCs, is not harmful for the ozone and not polluting, it owns

however an energetic efficiency and an equivalent refrigerant ability.

According to the standard 34 ASHRAEs this fluid reenters in the category A1 and therefore it is not inflammable in

environmental conditions of 1 atm and 18 °C, but, it is very dangerous to operate welds, braising or to expose to flames, the

product containing R-134.

Is forbidden to change the gas quantity inside the unit; in case of leakage suspicion, it's mandatory to empty the circuit, make

the vacuum and a new charge in accordance with the quantity indicated on the external unit technical label.

(*) The substitution of these components involves the emptying and the recharge of the circuit refrigerator.

These operations must be effected exclusively by experienced personnel.

USE ONLY ORIGINAL SPARE PARTS.