
The refrigerant enters evaporator (101b), where it withdraws heat from the compressed air by
further evaporation at constant pressure. The heated refrigerant leaves the evaporator and is
sucked in by refrigerant compressor (209) via liquid separator (207).
The dryers are provided with a sight-glass (211). The sight-glass allows the refrigerant flow in the
line to be checked. During normal operation, the liquid flow must be clear. In general, vapor
bubbles indicate a shortage of refrigerant. Note that fluctuations in the load may cause bubbles to
pass in the flow for a short time. The centre of the glass is provided with a moisture indicator
which is green when the liquid refrigerant is free of moisture. It will turn yellow when the
refrigerant contains moisture, indicating that the refrigerant dryer/filter (206) needs to be
replaced.
Instruction book
22
2920 1992 00
Summary of Contents for QED-1250
Page 2: ......
Page 6: ...8 2 AIR DRYER DATA 108 9 Pressure equipment directives 112 Instruction book 4 2920 1992 00 ...
Page 15: ...Position of components Air cooled dryer Water cooled dryer Instruction book 2920 1992 00 13 ...
Page 17: ...Connections Rear view of Air cooled dryer Instruction book 2920 1992 00 15 ...
Page 31: ...Electrical diagram air cooled QED 1800 ES870 Instruction book 2920 1992 00 29 ...
Page 32: ...Electrical diagram air cooled QED 2100 ES1010 Instruction book 30 2920 1992 00 ...
Page 36: ...Electric cubicle air cooled QED 2100 ES1010 380 V and 460 V Instruction book 34 2920 1992 00 ...
Page 86: ...Dimension drawing air cooled QED 1600 ES760 Instruction book 84 2920 1992 00 ...
Page 87: ...Dimension drawing air cooled QED 1800 ES870 Instruction book 2920 1992 00 85 ...
Page 88: ...Dimension drawing air cooled QED 2100 ES1010 Instruction book 86 2920 1992 00 ...
Page 89: ...Dimension drawing water cooled QED 1250 ES610 Instruction book 2920 1992 00 87 ...
Page 90: ...Dimension drawing water cooled QED 1600 ES760 Instruction book 88 2920 1992 00 ...
Page 91: ...Dimension drawing water cooled QED 1800 ES870 Instruction book 2920 1992 00 89 ...
Page 95: ...Installation proposal water cooled dryer Instruction book 2920 1992 00 93 ...
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