Hisense 2AMW-42U4RRA, Техническое и сервисное руководство, Страница: 50 / 80

11. INSTALLATION TOOLS AND INSTALLATION FLOW CHART
11. Installation tools and installation flow chart
11.1 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 directly touch to refrigerant.
✧
: Interchangeability is available with R410A
●
: Only for Refrigerant R32
✕
: Prohibited
✦
: Only for Refrigerant R22
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 cas of material 1/2H, bending is not
available. Use elbow for bend and braze. Bending
Expanding Tool
✧ ✧
* In cas of material 1/2H, expanding of
tube is not available. Use socket for
connecting tube.
Expanding Tubes
Torque Wrench
✧
×
✕
* or
φ
1/2,
φ
5/8, spanner size is up
2mm.
Connection of Flare
Nut
✧ ✧
* Fo
φ
1/4,
φ
3/8,
φ
3/4, 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
✕ ✕
* C eck 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
✕ ✕
* Th current gas leakage detector (R22)
is not applicable due to different detecting
method.
Gas Leakage Check
46