American Dryer Corp ADG-464 manual

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d)Combustion Air Damper

To produce the required combustion airflow, this damper can be adjusted. Remove the screen to get access to the damper. Moving the damper closer to the blower inlet opening will reduce the combustion airflow, and moving it away from the blower inlet opening will increase the airflow. To measure the combustion airflow, attached a manometer to the air pressure tap on the burner box. Theairpressureshould measure 1.25 to 1.50 inches water column (W.C.) (3.1 to 3.73 mbar)

5)Pilot Gas Supply Line

a)The pilot gas supply line consists of a manual shut-off valve, pressure regulator, electric solenoid valve, back-loaded pressure regulator, and an adjustable gas cock.

b)The gas pressure in this line should be approximately 3.5-inches water column (W.C.) - 8.70 mbar - for natural gas and 1.5-inches water column (W.C.) (3.73 mbar) for L.P. (liquid propane) gas. This will provide a bushy pilot flame, which produces a signal through the flame rod that is converted to a 3 DC to 11 volts DC in the burner controller module (BMC).

(1)This flame can be adjusted in two (2) ways.

(a)Pilot Inlet Pressure Regulator

Remove the cap and turn the slotted adjustment screw clockwise (CW) for more gas and counterclockwise (CCW) for less gas.

(b)Adjustable Pilot Gas Cock

Remove the cap and turn the slotted adjustment screw clockwise (WC) for less gas and counterclockwise (CCW) for more gas.

(2)The pilot line contains a back-loaded pressure regulator with an impulse line connected to the gas burner inlet. The regulator will maintain a constant pilot supply pressure in the burner due to an increase in temperature. DO NOT adjust this regulator.

6)Main Gas Supply Line

The main gas supply line consists of a pressure regulator, two (2) motorized shut-off valves, Hi/Lo gas pressure switch, and manual shut-off valve.

The gas pressure at the burner should be 2.5-inches water column (W.C.) - 6.22 mbar - for natural gas and 1.25 inches water column (W.C.) - 3.1 mbar - for L.P. (liquid propane) gas. This pressure is measured by a manometer at the pressure tap which is located above the top manual shut off valve.

a)Motorized Gas Valve

The two (2) 2-inch F.P.T. motorized valve are “ON/OFF” gas flow control valves. The valves motors operate on 120 VAC and are electrically “cascaded” so that upper valve will not open until lower valve has fully opened. A limit switch inside the lower motorized valve provides the signal that the valve is fully opened. These valves will open only when the burner controller module (BCM) is receiving a signal from the flame rod proving that the pilot flame is established.

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Contents ADG-464 Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Returning Warranty Cards Parts Returning Warranty Parts Service PartsTroubleshooting TOC Section Safety Precautions What to do if YOU Smell GASPage SPECIFICATIONS/DIMENSIONS SpecificationsDimensions Installation Procedures Reassembly of DryerPage Page Location Requirements Internal AIR, Electric and Water Connections Page Page Page Page Page Left Drum Motor External Supply Connections Page Page Electrical Requirements Electrical RequirementsElectrical Service Specifications PER Dryer Page Fresh AIR Supply Requirements PRE START-UP Preparation for OperationRoutine Maintenance CleaningMonthly Component System Descriptions Page Page Main AIR Blower and Heat Reclaimer System Page Compressed AIR System Additives or SolventsPage Page GAS Burner and Ignition System Switch #1 Recycling Mode Page Page Page Page Page Page Page Safety Devices Level Fault Service PartsWarranty Returning Warranty CardsReturning Warranty Parts Page Troubleshooting Possible Solutions Power MalfunctionsProbable Causes No Control Power Blue Light Off Machine Main Power Shuts Down Blue Indicator Off 2CRB Sprinkler Circuit Description Page If no, go to on Possible Solutions General Description Unless the Water Valve to the Sprinkler is ClosedIntroduction Burner Controller Input Signal ComponentsBurner Ignition Burner Section Input Circuit Component DescriptionLoad Door Switch DS1B Output Signal Component Description Stop Detector Relay Contact SMD noGAS Fault Message gas system only Heater Fault Message Possible Solutions Page Page AIR Fault Message HI-TEMP Fault Message Possible Solutions Drum Fault Message Page Tumbler Basket Section Electrical Malfunctions Tumbler Basket Section Electrical ComponentsFollowing is for 2-Door Models only Rear Panel Control Problems Probable Causes Possible Solutions Unload 1 Selection Probable Causes PLC OUT PIN 7 = Unload Door Open PLC OUT PIN 10 = Front UPDoor Open Problem Drum Fault Message Malfunction Probable Causes Page Lint Drawer Proximity Switches Front Door SwitchRear Down Switch LS2 Base Section Electrical MalfunctionsTumbler Basket Tilt Problems Level Fault Lint Chamber Pressure Switch PS3Probable Solutions Page Lint Screen Mechanism Problem Screen Fault Lint Chamber Air Pressure Problem AIR Fault Pendant Control Malfunctions Pendant Electrical ComponentsVerify Pendant Electrical Signals Wiring Diagram Temperature Sensing Page Temperature Measurement and Sensing Problems Circuit Wiring to the Analog Input Module MotorsMotor Actuation Problems Probable Causes Motor Protection Device DescriptionsPLC Programmable Logic Controller Error Messages Burner Controller stops heat