P A G E 17
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.
2 A 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.
