R410A Tools - Panasonic CS-VA70KE Service Manual

CS-VA70KE / CU-VA70KE / CS-VA90KE / CU-VA90KE / CS-VA120KE / CU-VA120KE
9.2.2.

R410A Tools

1. Copper tube gauge for clearance adjustment
(used when flaring with the conventional flaring tool (clutch type))
· This gauge makes it easy to set the clearance for the copper tube
to 1.0-1.5 mm from the clamp bar of the flaring tool.
2. Flaring tool (clutch type)
· In the R410A flaring tool, the receiving hole for the clamp bar is
enlarged so the clearance from the clamp bar can be set to 0-0.5
mm, and the spring inside the tool is strengthened to increase the
strength of the pipe-expanding torque. This flaring tool can also be
used with R22 piping, so we recommend that you select it if you are
buying a new flaring tool.
3. Torque wrenches
For 1/4 (opposite side x torque)
For 3/8 (opposite side x torque)
For 1/2 (opposite side x torque)
4. Manifold gauge
· Because the pressure is higher for the R410A type, the conventional type cannot be used.
High-pressure gauge (red)
Low-pressure gauge (blue)
· The shape of the manifold ports has been changed to prevent the possibility of mistakenly charging with another type of refrigerant.
Port size
Conventional wrenches
17mm X 18 N m (180 kgf cm)
22mm X 42 N m (420 kgf cm)
24mm X 55 N m (550 kgf cm)
Table 6 Difference between R410A and conventional high/low-pressure gauges
Conventional gauges
-76 cmHg - 35 kgf/cm
-76 cmHg - 17 kgf/cm
Table 7 Difference between R410A and conventional manifold port size
Conventional gauges
7/16 UNF 20 threads
Fig. 1 Copper tube gauge for clearance adjustment
Fig. 2 Flaring tool (clutch type)
Fig. 3 Torque wrenches
Table 5
32
R410A wrenches
17mm X 18 N m (180 kgf cm)
22mm X 42 N m (420 kgf cm)
26mm X 55 N m (550 kgf cm)
R410A gauges
-0.1 - 5.3 Mpa
-76 cmHg - 53 kgf/cm
-0.1 - 3.8 Mpa
-76 cmHg - 38 kgf/cm
R410A gauges
1/2 UNF 20 threads