Manitowoc SD0682C Manuel D'installation, D'utilisation Et D'entretien page 13

Section 2
Step 4 Connect the line set
• Maximum amount of time the refrigeration system
can be exposed to the atmosphere is 15 minutes
• Purge line set with dry nitrogen while brazing.
• Line set shut off valves on the ice machine must
remain closed and be protected from heat during
brazing.
• The condensing unit ships with a 50/50 mixture of
nitrogen/helium.
• S3000C has 2 suction lines and requires installation
of a tee at the condensing unit.
S3000C
SUCTION LINE ON
TUBING MUST BE
CONDENSING UNIT
CONNECTED TO
TEE AS SHOWN
SUCTION LINE
FROM HEAD
SECTION
LIQUID
LINE
SUCTION
LINE
MINIMIZE THE TIME THE
REFRIGERATION SYSTEM
IS EXPOSED TO THE
ATMOSPHERE (15
MINUTES MAXIMUM)
Part Number 000006505 12/10
SUCTION LINE
FROM HEAD
SECTION
VALVES MUST REMAIN
CLOSED AND BE
PROTECTED FROM
HEAT WHEN BRAZING
(WRAP WITH WET RAG)
Step 5 Pressure Test and Evacuate Line Set and
CVD Condensing Unit
• Lineset shutoff valves must remain closed until
pressure testing and evacuation are complete.
• Schrader valve core removal tools that allow for
removal and installation of the valve cores without
removing manifold gauge set hoses are
recommended to decrease the evacuation time.
• Pressure test @ 150 psi (1000 kPa) for a minimum of
15 minutes.
• Minimum evacuation level is 500 microns.
CONNECT VACUUM PUMP TO LINE SET
ALTERNATE CONNECTIONS AT
CONDENSING UNIT SCHRADER VALVES
Installation
SHUT OFF VALVES
13