Panasonic CS-F50DTE5 Service Manual

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Panasonic CS-F50DTE5 Service Manual Manual pdf 72 page image

11.2.2. R410A tools1. Copper tube gauge for clearance adjustment(used when flaring with the conventional flaring tool (clutchtype))•••• This gauge makes it easy to set the clearance for thecopper tube to 1.0-1.5 mm from the clamp bar of theflaring tool.2. Flaring tool (clutch type)•••• In the R410A flaring tool, the receiving hole for theclamp bar is enlarged so the clearance from the clampbar can be set to 0-0.5 mm, and the spring inside thetool is strengthened to increase the strength of the pipe-expanding torque. This flaring tools can also be usedwith R22 piping, so we recommend that you select it ifyou are buying a new flaring tool.3. Torque wrenches4. Manifold gaugeFig. 1 Copper tube gauge for clearance adjustmentFig. 2 Flaring tool (clutch type)Fig. 3 Torque wrenchesTable 5Conventional wrenches R410A wrenchesFor 1/4 (opposite side x torque) 17 mm x 18 N.m (180 kgf.cm) 17 mm x 18 N.m (180 kgf.cm)For 3/8 (opposite side x torque) 22 mm x 42 N.m (420 kgf.cm) 22 mm x 42 N.m (420 kgf.cm)For 1/2 (opposite side x torque) 24 mm x 55 N.m (550 kgf.cm) 26 mm x 55 N.m (550 kgf.cm)•••• Because the pressure is higher for the R410A type, the conventional type cannot be used.Table 6 Difference between R410A and conventional high/low-pressure gaugesConventional gauges R410A gaugesHigh-pressure gauge (red) -76 cmHg - 35 kgf/cm 3 -0.1 - 5.3 Mpa -76 cmHg - 53 kgf/cm 3Low-pressure gauge (blue) -76 cmHg - 17 kgf/cm 3 -0.1 - 3.8 Mpa -76 cmHg - 38 kgf/cm 3•••• The shape of the manifold ports has been changed to prevent the possibility of mistakenly charging with another type ofrefrigerant.Table 7 Difference between R410A and conventional manifold port sizeConventional gauges R410A gaugesPort size 7/16 UNF 20 threads 1/2 UNF 20 threads72CS-F50DTE5 CU-L50DBE8