How to Install Connecting Parts

Bolt/nut coupling type





1. Lubricate O-ring fittings with compressor oil for easy tightening and to prevent leaking of refrigerant gas.
2. Tighten the nut using two wrenches to avoid twisting the tube.
3. Tighten the O-ring fittings to the specified torque.

Flange With Guide Pin Type





1. Check for missing or damaged and replace with the new O-ring (use only specified one) and lubricate with compressor oil
2. Hand tighten the nut or bolt by pushing the one side pipe.
3. Tighten the nut or bolt to the specified torque.