Trane 4TYK8536B1000AA - Page 41

10. Installation tools and installation flow chart
40 SS-SVM001A-EM
Measuring Instrument and
Tool for R410A
R32 R22
Reason of Non-Interchangeability and
Attention (*: Strictly Required)
Use
Refrigerant
Pipe
Pipe Cutter
Chamfering
Reamer
✧ ✧
-
Cutting Pipe Removing
Burrs
Flaring Tool
✧ ✧
* The flaring tools for R32 are applicable
to R22/R410A.
* If using flaring tube, make dimension
of tube larger for R410A.
* In case of material 1/2H, flaring is not
available.
Flaring for Tubes
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
Torque Wrench
✧ ×✕
* For φ1/2, φ5/8, spanner size is up 2mm.
Connection of Flare Nut
✧ ✧
* For φ1/4, φ3/8, φ3/4, 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.
* Synthetic oil absorbs moisture quickly.
Applying Oil to the Flared
Surface
Vacuum
Drying&
Refrigerant
Charge
Refrigerant
Cylinder
✕ ✕
* Check refrigerant cylinder color.
* Liquid refrigerant charging is required
regarding zeotoropic 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 flow when a vacuum pump
stops, resulting in no reverse oil flow.
Vacuum Pumping
Adapter for
Vacuum Pump
✧ ✦
Manifold Valve
✧ ✦
* No interchangeability is available due
to higher pressures when compared with
R22.
* 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; R32/
R410A: UNF1/2, R22: UNF7/16.
Vacuum Pumping,
Vacuum Holding,
Refrigerant Charging and
Check of Pressures
Charging Hose
✧ ✕
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
Use tools and measuring instruments only for the new refrigerant which is direct contact with to refrigerant.
✧ : Interchangeability is available with R410A
✕ : Prohibited
●: Only for Refrigerant R32
✦ : Only for Refrigerant R22