Panasonic CS-NZ9SKE Service Manual

Also see for CS-NZ12SKE: Operating instructions

Contents

Panasonic CS-NZ9SKE Service Manual Manual pdf 43 page image

4313.3 Refrigerant piping installation • Tools used in services13.3.1 Required ToolsR32 refrigerant air conditioners use the common parts as R410A air conditioners for two-way valves and three-wayvalves (diameters of service ports); thus, they maintain commonality in the maintenance of the compressive strength,the size of pipe flaring, and the size of flare nuts as R410A. Therefore, for refrigerant pipe installation and services,you can use tools for R410A.However, mixing of refrigerants is not allowed, so that you have to separate the cylinders for the recovery ofrefrigerants.Tools used for installation • relocation • replacement of air conditioning unitsWorks R32 R410A R22Flaring Flare tools for R410A (clutch type) Flare tools for R22 (clutch type)Connection of pipes Torque wrench (diameter 1/4 3/8)Torque wrench (diameter 1/2 5/8) *1 Toque wrench (diameter 1/2 5/8)Manifold gauge charging hose R32 & R410A Common (As at November 2013) R22 OnlyAir purging Vacuum pump + Reducer / expander Vacuum pumpGas leakage test Detection liquid or soup water, HFC detector*1. Nut diameters of 1/2 5/8, the size of torque wrench common with R410AFor other installation, you can use general tools such as screw drivers (+, -), metal saws, electric drills, long-nosepliers, hole core drills (ø70 or ø65), linen tape, levels, temperature gauges, clamp meters, electric knives, nippers,pipe cutters, reamers or scrapers, spring benders, (diameters 1/4 3/8 1/2 5/8), monkey wrenches, fixing wrenches(17 or 12 mm), feeler gauges, hexagon wrenches (4 mm), testers, megohm testers, etc.Tools used for servicesWorks R32 R410A R22Insertion of refrigerant Digital scale for refrigerant charging, refrigerant cylinders, cylinder adopters and packing *aRecovery of refrigerant Refrigerant recovery devices, refrigerant cylinders, manifold gauges, charging hoses *b*a. Use cylinder for each refrigerant, cylinder adopter and packing.*b. Use refrigerant recovery cylinder separately for each refrigerant (no mixture of refrigerant allowed). Please beaware that there are some refrigerant collection devices which do not have self-certification.13.3.2 Tools for R32 (common with R410A)1. Flare gaugesUse flare gauges when you perform flaring with flaretools (crutch type). Flare gauges are used to set thepipe ends at 0.5 ~ 1.5 mm from clump bars of flaretools.Flare gauges2. Flare tools (clutch type)Flare tools have larger holes of clump bars in orderto set the pipe end at 0 ~ 0.5 mm, and have strongersprings inside to ensure solid flaring torques. Theseflare tools can be used commonly for R22.Flare tools (clutch type)