Title: +175=737.001_IK001_Brukermanual for Refra varmepumpe.Produktinformasjon.pdf
If necessary, replace the filter - drier, do the following sequence of operations: - Evacuate the system - Completely unplug the set and block the automatic protection for low pressure - Close the manual liquid line shutoff valve - Re-apply power, run the installation. Installation continues to operate in the mode of pumping, which in this case would reduce the system pressure below the threshold setting of low pressure.As soon as the pressure in the evaporator reaches 0.3 bar: - Set the switch (On / Off) to the OFF / OFF. - Remove the lock on the low pressure. - Close the valve suction line. - Replace the filter – drier. - Vacuum circuit through the manual shut-off valve fluid line for removing non-condensable gases, which could get into the system during replacement of the filter-drier. - Open valve in suction line.© UAB „Refra“ S. Dariaus ir S. Gireno g. 179, LT- 02189 Vilnius, Lithuania, Tel. +370 52031020 info@refra.eu www.refra.euUSER MANUAL