Witt GP 41 Installation And Operating Instructions Manual

Open refrigerant pumps

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Page 2: Technical Data
TECHNICAL DATA 4.1 GENERAL INFORMATION DESCRIPTION GP 41 GP 42 GP 51 GP 51a GP 52 GP 82 Volume refrigerant side [ltr.] 1,75 1,85 4,10 4,10 5,25 7,72 Reservoir oil content [ltr.] 1,70 1,70 2,00 2,00 2,00 2,00 Flange connection [DN]...
Page 3 4.5 DIMENSIONS 4.5.1 Dimensions GP 41 in mm 4.5.2 Dimensions GP 42 in mm - Technical data -...
Page 4 4.5.6 Dimensions in mm Strainer KS + ERA and 2x EA GP41/42 GP51/52 GP82 - Technical data -...
Page 5: Description Of Operation
The valve should be left ½ - ¼-turn open depending on the differential pressure (see also fig. 6). 4.10 PERFORMANCE CHARACTERISTIC TABLE 1450 1/min (RPM) PRESSURE DIFFERENCE [bar] VOLUME FLOW [m³/h] LIQUID R 22 HEAD GP 41 GP 42 GP 51A GP 51 GP 52 GP 82 EVAPORATING TEMPERATURE t +40°C -40°C +40°C...
Page 6: Adaptation To Plant Requirements
RECIRCULATION RATES AND PUMP CAPACITY Recirculation factor Recirculation flow in m³/hr per 100 kW* Refrigerant 3 - 4 2 - 3 1,4 – 2,4 1,3 – 1,8 2,8 – 4,3 Air Cooler 1,2 – 2,0 5 - 10 7 - 10 5 - 10 6 - 12 3 –...
Page 7 The flow switch control in the pump discharge shall stop the flow as the flow drops below 0,2 m/s. See also WITT information sheet W 4652-0.01 - Installation requirements -...
Page 8 Lukasstraße 32, 52070 Aachen, Germany Tel. +49 241 18208-0 sales@th-witt.com...

Gp 42 Gp 51 Gp 51a Gp 52 Gp 82