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General| Brand | AADCO |
|---|---|
| Model | 737 Series |
| Category | Portable Generator |
| Language | English |
Details installation steps for units without a compressor using house air.
Explains how to admit source air, check pressure, and perform leak checks.
Advises not to connect any equipment to the generator system at this stage.
Details pressing the PUMP switch, compressor start, indicator lamp, and input pressure increase.
Describes pressing the power switch, indicator lamp, METHANE HEAT lamp, solenoid valve click, and pressure changes.
Explains how to set output pressure to a desired level up to 50-psig using the regulator.
Specifies the required input pressure range (60-100 psig) for house air.
Details connecting the generator to equipment using ¼-inch tubing and avoiding restrictive tubing.
Guides on closing valves, opening flow adjust, and checking for leaks using soap solution.
Explains how to set output pressure based on instrument requirements, including a 10-psig differential.
Warns against exceeding output capacity to avoid jeopardizing purity and damaging the generator.
Instructs to depress switches and cap outlets when the unit is not used for a week or more.
Explains how generators produce clean air from unclean air using chromatographic techniques and solenoid valves.
Describes the process of selective adsorption and separation of components within the columns.
Lists potential causes of damage to the purification reactor, including improper filtering, water ingress, overload, and incorrect pressure.
Details the operation of the manual toggle valve for bleeding accumulated water from the ballast tank.
Explains the role of the cooling fan and the thermal switch in preventing compressor overheating.
Mentions the pressure switch/pressure relief valve system installed in generators with output > 1-LPM.
Explains the system's purpose is intermittent compressor operation to reduce wear and promote cooler operation.
Describes the pressure switch as normally closed, controlling the solid state relay for compressor power.
Notes that the relief valve eliminates problems caused by the compressor starting against pressure.
Describes the "A" reactor's purity, oxygen concentration, and CO2 levels, suitable for calibration disparity avoidance.
Details the "B" reactor's purity, higher oxygen concentration (37%), and use for high sensitivity FID detectors.
Explains electrical control by the POWER switch and a sixty-minute equilibration time due to water expulsion.
Lists purity levels for hydrocarbons, CO2, methane, ozone, etc., and dewpoint.
Instructs bleeding ballast tank water every three days or daily during high humidity.
Details checking INPUT PRESSURE gauge for proper compressor operation and pressure switch cycling.
Advises observing the rotameter and OUTPUT PRESSURE gauge for constant readings and checking for sudden drops.
Covers issues where the PUMP switch lamp lights but the compressor does not start, including input pressure and relay checks.
Addresses compressor stopping suddenly due to cooling fan failure or overheating.
Further checks for compressor overheating, visual inspection of shrouds, and fan/compressor replacement.
Addresses scenarios where the PUMP switch lamp does not light.
Addresses compressor failing to reach 80-psig within the specified time.
Identifies issues causing the compressor to run continuously past the 80-psig cutoff.
Addresses issues where the compressor continues to run after the PUMP switch is depressed off.
Checks voltage at terminal strip TS-1 and AC solid state relay to diagnose PUMP switch or relay defects.
Identifies causes for sudden drops in purification reactor output pressure.
Explains that momentary drops indicate output pressure is too close to the low pressure switch setting.
Discusses how purge flow issues and sudden demands for air can cause output pressure drops.
Points to a solenoid valve obstruction if only one side shows full output pressure and flow.
Confirms solenoid valve obstruction if there's little or no output flow/pressure in the second half of the cycle.
Instructs listening for solenoid valve clicks to confirm energization for alternate halves of the cycle.
Addresses purge flow occurring when the POWER switch is off, indicating a solenoid valve "blow by".
Details identifying a leaking solenoid valve by feeling flow from the top when its coil is not energized.
Identifies a defective check valve on the output side of the purification reactor if purge flow is constant or unequal.
Describes how to confirm cooling fan failure by feeling for air flow and replacing the fan if absent.
Explains checking the METHANE HEAT lamp and pyrometer for proper operation after power is applied.
Addresses situations where the methane reactor fuse blows.
Addresses scenarios where the pyrometer or thermocouple is defective if the lamp cycles but temperature is incorrect.
States the pressure switch controls the compressor range, usually between 60 and 80-psig.
Guides on adjusting the larger knob to set the compressor cut-off pressure to 80-psig.
Explains how to note the pressure at which the compressor cuts on, aiming for 60-psig.
Advises on making pressure settings and replacing the switch if unable to achieve desired readings.
Details the complete process for removing and installing a purification reactor.
Provides step-by-step instructions for removing and installing a methane reactor.
Provides instructions for replacing a defective pump or power switch.
Provides instructions for replacing the pump or power lamp by removing the lens cap.
Explains the manifold ensures pure air availability to analytical instruments, using a cylinder as a backup.
Explains the manifold's purpose is to ensure continuous air supply to the generator, using house air and compressor as sources.
Explains compressor activation if house air falls to 60-psig or less, and its shutoff when house air pressure recovers.
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