Sharp AY-X10CR User Manual

AH/AY-X08CR
AH/AY-X10CR
AH/AY-X13CR
Table 10. Differences in Port Size between Conventional Manifold and That for R410A
[| | ___ Conventional manifold Manifold for R410A
peREse 7/16 UNF 1/2 UNF
20 threads per inch 20 threads per inch
b) Charge Hose
® AsR410A is characterized by high pressure, the pressure resistance of the charge hose has been
increased. The material has also been changed to an HFC resistant type, and, as is the case of each
port of the manifold, the hose cap size has been changed. Furthermore, for prevention of gas pressure
reaction, a charge hose with a valve placed near the cap is also available.
Table 11. Differences between Conventional Charge Hose and That for R410A
[| Conventional charge hose Charge hose for R410A
Pressure 3.4 MPa (34 kgf/cm?) 5.1 MPa (51 kgf/cm?)
resistance | Breaking pressure 17.2 MPa (172 kgf/cm?) 27.4 MPa (274 kgf/cm?)
Engineering material NBR rubber HNBR rubber
internally coated with nylon
Cap size 7/16 UNF 1/2 UNF
20 threads per inch 20 threads per inch
c) Electronic Balance for Refrigerant Charging
@ AsR410A belonging to the HFCs features high pressure and high evaporating speed, when R410A is
charged by using a charging cylinder, R410A in the cylinder cannot be kept in a liquefied state and
gasified refrigerant bubbles in the charging cylinder, it becomes difficult to read values. Therefore, it is
advisable to adequately use an electronic balance for refrigerant charging.
@ An electronic balance for refrigerant charging has higher strength due to its structure
with four points of support for refrigerant cylinder weight detection. As the charge hose connecting part
has two ports-one for R22 (7/16 UNF 20 threads per inch) and the other for R410A (1/2 UNF 20 threads
per inch)-it can also be used for charging the conventional refrigerant.
@ Twotypes ofelectronic balance for refrigerant charging are available-one for 10 kg cylinder and the other
for 20 kg cylinder.
Electronic balance for 10 kg cylinder ...... precision + 2g
Electronic balance for 20 kg cylinder ...... precision + 5g
@ Refrigerant is charged maunally by opening/closing the valve.
d) Torque Wrench (for nominal diameters 1/2 and 5/8)
® Along with changes is flare nut sizes for enhanced pressure resisting strength, torque wrenches for
R410A differ in opposite side size.
Table 12. Differences between Conventional Wrenches and Those for R410A
Conventional torque wrench Torque wrench for R410A
For 1/2 24 mm x 55 Nem 26 mm x55 Nem
(opposite x torque) (550 kgf-cm) (550 kgfecm)
For 5/8 27mm x65 Nm 29 mm x 65 Nem
(opposite x torque) (650 kgf-cm) (650 kgfecm)
e) Flare Tool (clutch trpe)
@ Aflare tool for R410A is provided with a large clamp bar receiving hole so that the projection of the copper
pipe from the clamp bar can be se at 0 ~ 0.5 mm in flare processing, and also features higher spring
strength for increased expansion pipe torque. This flare tool can also be used for R22 copper pipe.
f) Gauge for Projection Adjustment (used when flare processing is made by using conventional flare
tool [clutch type] )
® A gauge 1.0 mm in thickness which helps in easily setting the projection of the copper pipe from the
clamp bar at 1.0 ~1.5 mm.
g) Vacuum Pump Adapter
@ tis necessary to use an adapter for preventing vacuum pump oil from flowing back to the charge hose.
The charge hose connecting part has two ports-one for conventional refrigerant (7/16 UNF 20 threads
per inch) and the other for R410A. If the vacuum pump oil (mineral) mixes with R410A, a sludge may
occur and damage the equipment.
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Sharp AY-X10CR Specifications

General

Brand	Sharp
Model	AY-X10CR
Category	Air Conditioner
Language	English