Bard W3RV2-R - General

Manual 2100-479
Page 2 of 11
Recovery Equipment Rated for R-410A ...................3
Leak Detectors .........................................................3
Gauge Manifold
........................................................3
Attaching Gauge Manifold
........................................3
Attaching Manifold Hose to Schrader Valve
.............4
Leak Test
..................................................................4
Evacuation ........................................................ 4 & 5
Charging
..................................................................5
Preliminary Charging Steps
.....................................5
Charging the System by Weight
..............................5
CONTENTS
General
Troubleshooting the Mechanical System
Air Conditioning & Heat Pump - Cooling
.............9
Low Suction — Low Head Pressure .........................9
High Suction — Low Head Pressure ........................9
Low Suction — High Head Pressure ........................9
High Suction — High Head Pressure ........................9
Heat Pump - Heating
..............................................9
Low Suction — Low Head Pressure .........................9
High Suction — Low Head Pressure ........................9
Low Suction — High Head Pressure ........................9
High Suction — High Head Pressure ........................9
Figures
Figure 1: Typical AC System Cooling Cycle
.............6
Figure 2: Typical HP System Cooling Cycle ............7
Figure 3: Heating Cycle ...........................................8
Charts
Troubleshooting Chart for Air Conditioners
............10
Troubleshooting Chart for Air-to-Air Heat Pumps .... 11