Modern Refrigeration and Air Conditioning
xxiii
Service Procedures
Loosening a Tight Bolt or Nut 63
Annealing Tubing 70
Cutting Tubing with a Tubing Cutter 73
Cutting Tubing with a Hacksaw 75
Squaring and Reaming Tubing End 75
Bending with a Lever-Type Tubing
Bender 76
Single Flaring Procedure 78
Double Flaring Procedure Using
Adapters 79
Double Flaring Procedure Using
Punches 80
Soldering Procedure 85
Brazing Procedure 87
Swaging Tubing with a Swaging
Adapter 90
Solvent Welding Plastic Pipe 92
Cleaning a Thermistor Vacuum
Gauge 138
Loosening a Stuck Service Port Plug 143
Installing a Bolted-On Piercing Valve 145
Installing a Brazed-On Piercing Valve 146
Purging a Gauge Manifold and Hoses 148
Testing a Vacuum Pump 156
Checking Refrigerant Charge by
Subcooling 166
Checking Refrigerant Charge by
Superheat 167
Performing a Pump-Down 168
Passive Recovery Procedure Using the
Compressor 169
Passive Recovery Procedure Without the
Compressor 170
Vapor Refrigerant Recovery
Procedure 170
Liquid Refrigerant Recovery
Procedure 172
Push-Pull Liquid Recovery
Procedure 173
Checking a Recovery Cylinder Liquid
Level Switch 175
Locating a Refrigerant Leak 177
Pressure Testing with an Inert Gas 177
Pressure Testing with the System’s
Refrigerant 179
Two-Part Epoxy Repair 181
One-Part Epoxy Repair 181
Deep Vacuum Evacuation
Procedure 184
Triple Evacuation Procedure 188
Vapor Charging by Weight 188
Vapor Charging to “Top Off” an
Undercharged System 188
Liquid Charging by Weight 190
Crimping Wires to Wire Terminals 225
Testing a Diode 237
Reversing the Rotation of a Three-Phase
Motor 263
Identifying Unmarked Motor Terminals 268
Checking a Current Relay 292
Checking a Potential Relay 294
Using an In-Line Ammeter 308
Testing a Hermetic Compressor’s Winding
Insulation 312
Discharging and Testing a Capacitor 315
Measuring Capacitance 316
Checking Hermetic Compressors for
Continuity and Shorts 318
Checking Hermetic Compressors for
Shorts to Ground 319
Hard Start Method of Servicing a Stuck
Hermetic Compressor 320
Finding Connection Problems in a Fan
Motor Circuit 321
Determining Compressor Speed 339
Using Valve Adaptors 469
Pinpointing a Restriction 475
Preparing a Domestic Refrigerator or
Freezer for Internal Service 483
Removing a Hermetic Compressor 483
Installing a Replacement Compressor 485
Repairing a Stainless Steel
Evaporator 486
Repairing an Aluminum Evaporator 486
Replacing a Filter-Drier 489
Testing a Thermostat 491
Cleaning an Ultraviolet Air Treatment
System 549
Riveting a Joint Using a Pop Rivet
Tool 566
Duct Sizing Procedure 574
Sizing Ducts Using the Friction
Chart 578
Performing a Blower Door Test 589
Cleaning Ductwork 595
Balancing a System—Long Method 595
Balancing a System—Short Method 596
Washing an Electronic Air Cleaner
Filter 598
Purging a Series Loop System 812
Purging a One-Pipe System with Primary
and Secondary Loops 813
Purging a Two-Pipe Zoned System with
Zone Circulating Pumps 813
Purging a Two-Pipe Zoned System with
Zone Valves 815
Purging a Hydronic System Filled with
Glycol Solution 816
Recharging a Horizontal Expansion
Tank 818
Recharging a Diaphragm Expansion
Tank 818
Boiler Inspection and Maintenance 819
Stack Temperature Test Procedure 882
Draft Test Procedure 883
Smoke Test Procedure 884
Heat Exchanger Leak Test
Procedure 934
Manually Bleeding an Oil Furnace 941
Testing Heating Elements 948
Replacing Baseboard Heating Units 949
Troubleshooting Control System
Failure 987
Setting the Range on a Pressure Motor
Control 1081
Setting a High-Pressure Safety Cut-Out for
a Pressure Motor Control 1085
Using Tables to Determine Service Heat
Load 1187
Selecting Components for a Commercial
Refrigeration System 1208
Commercial Refrigeration
Installations 1228
Low-Side Charging Procedure 1243
High-Side Charging Procedure 1244
Starting a Commercial Refrigeration
System 1246
Fixing a System with a Frozen Moisture
Restriction in the TXV 1263
Flushing a Dirty Expansion Valve 1263
Replacing a Clogged Inlet Screen 1263
Quick Check for Trapped
Noncondensables 1270
P/T Chart Check for Trapped
Noncondensables 1272
Ice Machine Capacity Check 1283
Identifying Leaking Compressor
Valves 1295
Crankshaft Seal Leak Detection 1296
Determining Head Pressure for an
Air-Cooled Condenser 1299
Troubleshooting Outdoor Condensers 1302
Troubleshooting Outdoor Condenser
Louvers 1302
Determining Head Pressure for a Water-
Cooled Condenser 1303
Leak Testing a Water-Cooled
Condenser 1303
Removing Scale Deposits from
Water-Cooled Condenser Water
Tubes 1304
Recovering a System’s Refrigerant
Charge 1319
Removing Open-Drive Compressors 1322
Removing Hermetic Compressors 1325