VWR Flow Through Operator'S Manual Download Page 4

 

 

 
 

1.4 

Description of Models 

The models of this series of refrigeration units are designed to provide low temperature capabilities for 
circulators and baths without refrigeration, or for those requiring additional cooling. 
 
Immersion Coolers provide convenient cooling and reduce the need for dry ice or liquid nitrogen in 
dewar flasks.  These units do not have integral temperature controls.  They only run to their full cooling 
capability.  Immersion Coolers have a flexible hose connected to a probe.  The probe serves as the 
evaporator in the refrigeration cycle and is normally immersed in a dewar flask or cold trap. 
 
Flow-Through Coolers are designed to be used in conjunction with circulators or other controlled 
heating and pumping devices.  They are built with a copper tube-within-a-tube heat exchanger.  The 
fluid to be cooled is circulated through the space between the tubes while the refrigerant evaporates to 
produce cooling inside the inner tube.  The fluid contact with the cold evaporator inner tube produces 
very efficient heat removal from the fluid. 

 

1.5 Specification 

Chart 

 

Model

  

Flow Through 

Flow Through 

Immersion Probe 

Immersion Probe 

Immersion Probe 

Cooling Capacity 

200 Watts  

@ -10

°

575 Watts  

@ +20

°

260 Watts  

@ -10

°

745 Watts 

 @ +20

°

140 Watts  

@ -30

°

975 Watts  

@ +20

°

265 Watts 

@ -30

°

1050 Watts  

@ +20

°

75 Watts  

@ -30

°

HP 

1/4  1/3 1/4 1/3 1/4 

Temperature 
Range 

-20

°

C to 40

°

C -25

°

C to 40

°

C -35

°

C to 40

°

C -45

°

C to 40

°

C -60

°

C to -20

°

Probe Diameter 

NA 

NA 

1 3/4 in. 

3 in. 

1 1/2 in. 

Inlet/Outlet 

3/8 in. NPT 

Female 

3/8 in. NPT 

Female 

NA NA NA 

Overall Dim.      in. 

h x w x d          cm 

14 x 14 x 17 

35.5 x 35.5 x 43.2 

14 x 14 x 17 

35.5 x 35.5 x 43.2 

14 x 14 x 17 

35.5 x 35.5 x 43.2 

14 x 14 x 17 

35.5 x 35.5 x 43.2 

9 x 10 x 11 

22.9 x 25.4 x 28 

 

Summary of Contents for Flow Through

Page 1: ...Operator Manual Flow Through Coolers Immersion Coolers 110 064 Rev C 05 03...

Page 2: ...ng Procedure For Immersion Coolers 2 5 Operating Procedure For Flow Through Coolers 2 6 Application Notes Section 3 Trouble Shooting 3 1 Required Maintenance 3 2 Problem Solution chart Section 4 Servi...

Page 3: ...r other causes not arising out of defects in material or workmanship There are no warranties expressed or implied including but not limited to those of merchantability or fitness for a particular purp...

Page 4: ...ith a copper tube within a tube heat exchanger The fluid to be cooled is circulated through the space between the tubes while the refrigerant evaporates to produce cooling inside the inner tube The fl...

Page 5: ...and wait 10 minutes before restarting 2 3 Choice of Fluids In order to select a fluid for low temperature use the viscosity of a fluid at low temperatures as well as its freezing point must be consid...

Page 6: ...r pump 5 Set the circulator s temperature control to the desired temperature When the temperature stabilizes the circulator s heater should cycle to maintain the set temp 6 Turn the Cooler s power swi...

Page 7: ...ltage Avoid extension cords that can cause voltage drops 3 See Sect 3 1 Required Maintenance Check for airflow exiting the back of the unit Air vents should not be closer than 3 in from a wall or unit...

Page 8: ...ssor valves may produce high pitch buzzing sound 12 Check power Unit s power switch should be illuminated Section 4 Service and Technical Support If you have followed the troubleshooting steps and you...

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