Repairing Unit / Gas Charge; Preparations; Low Side Only; R E P A I R I N G U N I T / G A S C H A R G - Panasonic MDF-DU702VH Service Manual

Repairing unit / Gas charge

■Preparations（H/L side common）
· Refrigerant cylinder (type, amount required to be confirmed), refrigerant cylinder hose
· Alarm
· Detector (gas leak tester for HC refrigerant)
· Dedicated gauge manifold (dedicated GM) (combined with R290 · R170)
· General purpose gauge manifold (GM)
· Long hose (10 m or more: length to go outdoors) Field check required in advance
· Charge hose (4 or more), branching instrument
· Tools (Driver, pliers, pliers, etc.)
· Replacement parts (depending on repair contents)
· Piping
· Explosion-proof vacuum pump
· Powerful vacuum pump
· Piercing tool (2 to 4)
· Service valve
· Service port (check valve) * (See work contents in 2.1)
· Valve driver
· Scale (electronic weighing scale)
· Coupler
· Pinch pliers (2)
· Nitrogen cylinder, pressure regulator
· Leak Check Spray (Liquid detergent may be used)
· Gas welding machine
· Silver braze, flux, exclusive lighter
· Plumbing tools (cutter, reamer, bender, flare tool, expander, wrench, mirror, light etc.)
· Welding cooling tool (water container, waste etc.)
· Welding protective equipment (leather gloves, goggles, flameproof sheets, steel plates, etc.)
· Refrigerant protection (leather gloves, goggles)

■Low side only

· Teflon hose (for pentane)
· Pentane Charging Cylinder
· N-Pentane (Containing amount required)
· Pentane dryer
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