44 PB
INSTALLATION
Tools
11.INSTALLATION TOOLS AND INSTALLATION FLOW CHART
11. Installation tools and installation flow chart
11.1 Necessary tools and instrument list for installation
Necessary Tools and Instrument List for Installation
No. Tool No. Tool No. Tool No. Tool
1
Handsaw
6
Copper Pipe Bender 11 Spanner 16 Leveler
2
Phillips Screwdriver
7
Manual Water Pump
12
Charging Cylinder
17
Clamper for Solder-
less Terminals
3
Vacuum Pump
8
Pipe Cutter 13 Gauge Manifold 18
Hoist
(for Indoor Unit)
4
Refrigerant
Gas
Hose
9
Brazing Kit 14 Cutter for Wires 19 Ammeter
5
Megohmmeter 10 Hexagon Wrench 15 Gas Leak Detector 20 Voltage Meter
Use tools and measuring instruments only for the new refrigerant which is direct contact with to refrigerant.
Figure 301
Measuring Instrument
and Tool for R410A
NOTES Use
Refrigerant
Pipe
Pipe Cutter Chamfering
Reamer
- Cutting Pipe
Removing Burrs
Pipe Bender * In case of material 1/2H, bending is not
available. Use elbow for bend and braze.
Bending
Expanding Tool * In case of material 1/2H, expanding of tube is
not available. Use socket for connecting tube.
Expanding Tubes
Brazing Tool * Perform correct brazing work. Brazing for Tubes
Nitrogen Gas * Strict Control against Contaminant
(Blow nitrogen during brazing.)
Prevention from Oxidation
during Brazing
Vacuum
Drying&
Refrigerant
Charge
Refrigerant Cylinder * Check refrigerant cylinder color.
* Liquid refrigerant charging is required regarding
zerotropic refrigerant.
* Use the weight scale.
Refrigerant Charging
Vacuum Pump * The current ones are applicable. However, it is
required to mount a vacuum pump adapter which
can prevent from reverse ow when a vacuum
pump stops, resulting in no reverse oil ow.
Vacuum Pumping
Adapter for
Vacuum Pump
Manifold Valve
Vacuum Pumping,
Vacuum Holding,
Refrigerant Charging and
Check of Pressures
Charging Hose
Weight Scale
Measuring Instrument for
Refrigerant Charging
Refrigerant Gas
Leakage Detector
Gas Leakage Check
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