Manifold Gauge Set Connection: Notes
- The 'manifold gauge set' is a most important tool for tracing faults and system efficiency assessment. The relationship between HIGH and LOW pressures and their correlation to AMBIENT and EVAPORATOR temperatures must be compared to determine system status (see Figure
and/or Figure
).
Because of the heavy reliance upon this piece of equipment for service diagnosis, ensure that the gauges are calibrated regularly and the equipment is treated with care.
- Item list MANIFOLD GAUGE SET IDENTIFICATION
Item Description 1 LOW side service hose - BLUE 2 LOW side hand valve - BLUE 3 LOW pressure compound gauge - BLUE 4 HIGH pressure gauge - RED 5 HIGH side hand valve - RED 6 HIGH side service hose - RED 7 System service hose - Neutral color, commonly YELLOW