Gree MULTIPRO GMV-V WL/C-T Series Quick Start Manual page 12

NITROGEN PRESSURE TEST
• Once piping is complete, pressure test the system through both service valves
• Start at 150 psi and hold for 3 minutes
• Increase to 325 and hold for 5 minutes
• Increase to 500 and hold for 1 hour
EVACUATION
• Use a Micron Gauge
• Connect to Liquid and Gas
• Triple Evacuation is recommended
• Ensures dry system
• Often quicker
• Pull down to 4000 microns
• Hold for 15 minutes
• Break with 3 psi of Dry Nitrogen
• Hold for 20 minutes
• Pull down to 1500 microns
• Hold for 20 minutes
• Break with 3 psi of Dry Nitrogen
• Hold for 20 minutes
• Pull down to 500 microns
• Hold for 1 hour
• Does not rise above 1000 microns
GR EE M ULTIPRO QUICK STA RT GUID E | 1 2