MASS Engineered Design RU-200 user manual Service

D I P A N D F L O W C O O L E R S U S E R ’ S M A N U A L

Service

1 Complete servicing and repair of Techne products is available at Techne see the contact information on pages 3 or 4.

2A Service Manual is available and servicing may be undertaken by any competent refrigeration engineer.

The following table gives a guide as to the gas charge for each of the units:

Unit	Refrigerant §	Charge *
RU-200	R134a	95 gm
RU-500	R404a	250 gm
FC-200	R134a	95 gm
FC-500	R404a	240 gm

*There have been several improvements in design which have varied the charge. To increase the cool-down rate increase the charge slightly; to reach a lower temperature reduce the charge slightly. Adjust the charge during testing.

§Early units were charged with R12 or R502 please consult Techne for advice on repair of older units. Units charged with R404a or R134a have GN after the Serial Number,

eg 12345/5 GN.

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