Valeo REVO-E Evacuation And Charging Instructions

Also see for REVO-E: Workshop manual Installation instructions

Contents

Valeo REVO-E Evacuation And Charging Instructions Manual pdf 14 page image

General REVO E Evacuation and Charging Instructions101 General1.1. Purpose of evacuation and chargingAs soon as so-called non-condensable gases are formed within the ref-rigerant cycle the inner surface of the condenser gets downsized due toan air “bubble” consisting of non-condensable gases. The result is:– The heat transmission efficiency drops.– Often “bubbles” are seen inside the sight glass after the condenser.– By measuring pressure and temperature relatively high subcoolingbecomes evident although “bubbles” can be seen in the sigh glass.Almost always, non-condensable gases remain suspended as airbubbles in the top portion of the condenser and significantly affect itsefficiency. This leads to rapid increase in the high pressure.In the past the part of non-condensable gases in the evaporation phaseof the refrigerant was limited to >1 volume %. In this regard, we shouldnot overlook the fact that the refrigerant may already contain non-condensable gases at the time of delivery. The second part of non-condensable gases results from the vacuum achieved.NOTE:The use of contrast medium in the refrigerant circuit is not permitted andleads to loss of warranty.