Refrigeration System; Refrigerant Recovery And Evacuation - Stoelting F231 Service Manual

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5.1 REFRIGERATION SYSTEM

The F231 refrigeration systems have two functions:
Medium-Temperature - Maintaining mix
temperature in the hopper.
Low-Temperature - Producing and maintaining
high quality product in the freezing cylinders.
The system is designed for effi cient use with R404A
refrigerant. The proper charge is indicated on the infor-
mation plate.
5.2 REFRIGERANT RECOVERY AND
EVACUATION
Refer to the following procedures to properly recover and
evacuate the refrigeration system. Do not purge refriger-
ant into the atmosphere.
SECTION 5
REFRIGERATION SYSTEM
Figure 5-1 Water Cooled Refrigeration System
25
NOTE
For qualifi ed service personnel only. Anybody work-
ing with refrigerants must be certifi ed as a Techni-
cian TYPE I as required by 40 CFR 82 Subpart F
and hold all State and/or local refrigerant handling
certifi cations. In addition, all handling, storage, and
disposal of refrigerants must be in accordance with
Environmental Protection Agency (EPA) guidelines
and standards and all State and local guidelines
and standards.
WARNING
Hazardous voltage
Make sure the machine is off when disassembling
for servicing. The machine must be disconnected
from electrical supply before removing any access
panel. Failure to disconnect power before servicing
could result in death or serious injury.