BV2 starts closing the bypass line and opening the oil supply line from the ER heat exchanger (HE) at the
lower limit of its temperature range. At the upper limit of its temperature range, the bypass line is completely
closed and all the oil flows through the ER heat exchanger.
Variable speed driven (VSD) compressors are equipped with a bypass valve BV2 that starts opening at 60 ˚C
(140 ˚F) and which is completely open at 75 ˚C (167 ˚F).
The housing of BV2 is provided with a special handle (V1), allowing to control the working of the energy
recovery system.
As can be seen on the ER label, the ER unit is integrated in the oil circuit and will recover energy when the
handle is completely turned in clockwise.
When the handle is turned out anticlockwise, the heat exchanger (HE) is bypassed and no energy will be
recovered.
Detail of valve housing of BV2 with handle V1
ER label
Instruction book
2920 1634 04 65
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