User Manual

Part Number 000014141 Rev 07 2/20 29
Section 2 Installation
VALVES MUST
REMAIN CLOSED AND
BE PROTECTED FROM
HEAT WHEN BRAZING
(WRAP WITH WET
RAG)
Step 3 Pressure Test and Evacuate Line Set
and CVD Condensing Unit.
• Shutoff valves for the line set must
remain closed until pressure testing and
evacuation are complete.
• Valve core removal tools that allow for
removal and installation of the valve
cores without removing hoses for the
manifold gauge set are recommended to
decrease the evacuation time.
• Pressure test at 150 psi (1000 kPa) for a
minimum of 15 minutes.
• Minimum evacuation level is 500
microns.
Pressure test the line sets and CVD
Condensing Unit with 150 psi (1000 kPa) of
dry nitrogen. Add nitrogen at the shutoff
valves for the line set located at the back
of the ice machine head section or from
the access valves located in the CVD
Condensing Unit. Complete the pressure
test, verify no leaks are present and remove
the nitrogen from the system before
connecting the vacuum pump. Connect
vacuum pump and evacuate system to 500
microns.
ALTERNATE CONNECTIONS
AT CONDENSING UNIT
SCHRADER VALVES
CONNECT MANIFOLD GAUGE
SET OR HOSE WITH CORE
DEPRESSORS ON BOTH ENDS
CHECK
VALVE
CONDENSER
LINE SET CONNECTION
LOCATION
CONNECT VACUUM
PUMP TO SHUTOFF
VALVES FOR THE LINE SET