York JDOH Series, Original Instructions Manual

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2.2 Necessary Tools and Instrument List for Installation
Use tools and measuring instruments only for the new refrigerant which is directly touch to refrigerant.
No. Tool No. Tool No. Tool No. Tool
1 Handsaw 6 Copper Pipe Bender 11 Spanner 16 Leveller
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
: Interchangeability is available with current R22 : only for Refrigerant R410A (No Interchangeability with R22)
: Prohibited : only for Refrigerant R407C (No Interchangeability with R22)
R410A R407C
Pipe Cutter
Chamfering Reamer
-
Cutting Pipe
Removing Burrs
Flaring Tool * The flaring tools for R407C are applicable to R22. Flaring for Tubes
* If using flaring tube, make dimension of tube
larger for R410A.
* In case of material 1/2H, flaring is not available.
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
* For
12.7, 15.88, spanner size is up 2mm.
* For
6.35, 9.53, 19.05, spanner size is
the same.
Brazing Tool * Perform correct brazing work. Brazing for Tubes
Nitrogen Gas * Strict Control against Contamin
(Blow nitrogen during brazing.)
Prevention from
Oxidation during
Brazing
Lubrication Oil
(for Flare Surface) * Use a synthetic oil which is equivalent to the oil
used in the refrigeration cycle.
Applying Oil to the
Flared Surface
* Synthetic oil absorbs moisture quickly.
* Check refrigerant cylinder color.
Refrigerant Charging
Liquid refrigerant charging is required regarding
zeotoropic refrigerant.
Vacuum Pump Vacuum Pumping
Adapter for
Vacuum Pump
Manifold Valve * No interchangeability is available due to higher
pressures when compared with R22.
Charging Hose Do not use current ones to the different refrigerant.
If used, mineral oil will flow into the cycle and cause
sludges, resulting in clogging or compressor failure.
Connection diameter is different; R410A: UNF1/2,
R407C: UNF7/16.
Charging Cylinder * Use the weight scale. -
Weight Scale
-
Measuring
Instrument for
Refrigerant Charging
Refrigerant Gas
Leakage Detector * The current gas leakage detector (R22) is not
applicable due to different detecting method.
Gas Leakage Check
: Interchangeability with R407C.
Vacuum Pumping,
Vacuum Holding,
Refrigerant Charging
and Check of
Pressures
Measuring Instrument and Tool
Interchangeability
with R22
Reason of Non-Interchangeability and Attention
( : Strictly Required)
Torque Wrench
Vacuum
Drying
.
Refrigerant
Charge
Refrigerant
Cylinder
The current ones are applicable. However, it is
required to mount a vacuum pump adapter which
can prevent from reverse flow when a vacuum
pump stops, resulting in no reverse oil flow.
Use
Refrigerant
Pipe
Extrusion
Adjustment Gauge
-
Connection of
Flare Nut
Dimensional Control
for Extruded Portion
of Tube after Flaring