Custom Solution | Turnkey Leak Test System for A/C Coils

Part Number: X-1P30384

Custom turnkey leak test system for A/C coils

A manufacturer of HVAC components and systems required an automated leak testing system for two unique A/C coil parts.

We engineered an automated turnkey leak test system utilizing the hard vacuum leak test method. By using a mixture of helium and nitrogen as a tracer gas, the customer used less helium. The leak test system achieved maximum efficiency, throughput, and flexibility through a custom-tooled, L-shaped test chamber.

Custom tooled "L" shaped vacuum test chamber accommodates two separate, unique test parts
Chamber features include front loading opening, manual vertical sliding door, and manually operated slide-out loading shelf

Industry:	Automotive A/C Systems & Components
Application:	Leak testing A/C coils
Production Volume:	Medium to high
Tracer gas:	Helium 95%, Nitrogen 5%
Controller System:	AB PLC
Leak Test Method:	Helium hard vacuum
Leak Rate:	5.3 x 10^-5 atmcc/sec Helium Nitrogen mix
Leak Reject Limit:	5.6 x 10^-5 atmcc/sec Helium
Throughput:	~29 seconds per part
Cycle Time:	50 seconds, including load/unload
Test Pressure:	295 PSI on helium leak test, 550 PSI on proof test
Configuration:	Portable cart
Chamber:	Custom tooled "L" shaped vacuum test chamber
Leak Detector:	LDS3000 Mass Spectrometer
Pumping System:	Three-stage roots blower package