Hitachi RPIH-3.0HNAUN1Q Operation, Installation, And Maintenance Manual page 12

Check whether the design pressure of machine is 4.15 MPa. The following tools are necessary
for the installation & construction.
No.
Handsaw
Phillips Screwdriver
Vacuum Pump
Refrigerant Gas Hose
Megohmmeter
Copper Pipe Bender
Water Pump
Pipe Cutter
Brazing Kit
Hexagon Wrench
Please use vacuum pump, refrigerant pipe, charging cylinder and gauge manifold designed for
R410A. The combination with other refrigerant equipment is prohibited.
Since the pressure of new refrigerant R410A is 1.4 times that of traditional refrigerant, its performance
is susceptible to impurities like moisture, scale and grease, etc. It's essential to remove the moisture,
dust, other refrigerants or refrigerant oils from the refrigeration system.
Hence, the failure to use specified materials and tools may result in explosion, personal injury,
refrigerant leakage, electrical failure or fire.
Tool
No.
Spanner
Charging Cylinder
Gauge Manifold
Cutter for Wires
Gas Leak Detector
Leveller
Clamper for Solderless Terminals
Hoist (for Indoor Unit)
Ammeter
Voltage Meter
5
Tool