68
Fig 39 : Digital Vacuum gage
5.1.3 - Remove shipping packaging
After receipt remove any packaging material from the unit, VFD, and control panels.
5.1.4 – Lubrication and purge circuit valves
Check if the motorized valves on lubrication circuit are open and all solenoid valves and service valves are open
on purging circuit.
5.1.5 - Tighten all gasketed joints
Gaskets normally relax by the time the chiller arrives at the jobsite. Tighten all gasketed joints to ensure a leak-
tight chiller (does not apply to refrigerant joints covered by factory insulation). Gasketed joints (excluding O-rings)
may include joints at some or all of the following:
• Waterbox covers
• Compressor first suction elbow flanges (at compressor and at the cooler)
• Compressor secondary suction flanges (at compressor and low side float chamber)
• Compressor discharge flange
• Cooler inlet line spacer (both sides)
• Envelope control flange (both sides of valve)
• ICP piping flange
• High and low side float chamber covers
See Tables 16 for bolt torque requirements.
CLASS 8.8, SAE 5, SA499(N•m)
CLASS10.9, SAE 8, SA354 GR
BD(N•m)
SOCKET HEAD OR HEX
WITH 3 RADIAL LINES
MEDIUM CARBON STEEL
HEX HEAD
WITH 6 RADIAL LINES
MEDIUM CARBON STEEL