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Troubleshooting
Related Manuals for ADC ADG-530
Summary of Contents for ADC ADG-530
- Page 1 ADG-530 Hot Surface Ignition System Technical Manual American Dryer Corporation 88 Currant Road Fall River MA 02720-4781 USA Telephone: +1 (508) 678-9000 / Fax: +1 (508) 678-9447 e-mail: techsupport@amdry.com www.amdry.com ADC Part No. 450401-3...
- Page 2 THE HSI GAS VALVE IS NOT FIELD REPAIRABLE We have tried to make this manual as complete as possible and hope you will find it useful. ADC reserves the right to make changes from time to time, without notice or obligation, in prices, specifications, colors, and material, and to change or discontinue models.
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Page 3: Table Of Contents
GAS “HOT SURFACE IGNITION” (HSI) SYSTEM MODEL TRITON 2465 (ADC Part No. 128974) 50/60 Hz TYPE ONLY PRODUCT INFORMATION and TROUBLESHOOTING GUIDE NOTE: Failure to read and follow ALL instructions and information included in this manual carefully before operating and/or servicing this system, COULD CAUSE PERSONAL INJURY and/or PROPERTY DAMAGE. -
Page 4: Introduction
A. INTRODUCTION The Hot Surface Ignition (HSI) System operates at 24 VAC and is a discrete component based gas ignition control (HSI module) system which utilizes a Hot Surface Ignitor as an ignition source. Safe proof of flame is accomplished through flame rectification. The HSI module has a diagnostic LED (light emitting diode) indicating light which simplifies troubleshooting in the event of a fault. -
Page 5: Flame Failure Reignition
(1) Recovery from LOCKOUT requires a manual reset by either resetting the thermostat or removing the 24 VAC from the HSI module for a period of five (5) seconds. (2) If the microprocessor (computer) is still calling for heat after one (1) hour, the HSI module will automatically reset and attempt to ignite the burner again. - Page 6 c. The HOT SURFACE IGNITOR/FLAME SENSOR ASSEMBLY is located in the burner flame area and is used to ignite the gas by the use of a HOT SURFACE IGNITOR. To provide feedback information to the HSI module a FLAME SENSOR is used to determine whether the burner flame is evident (on).
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Page 7: System (Basic) Electrical Ratings/Specifications
2. SYSTEM (basic) ELECTRICAL RATINGS/SPECIFICATIONS INPUT POWER CONTROL: 18-30 VAC 50/60 Hz INPUT CURRENT DRAIN 300 mA @ 24 VAC with GAS VALVE RELAY ENERGIZED (control only) GAS VALVE RATING 2.0A @ 24 VAC OPERATING TEMPERATURE 0 °F (fahreheit) to 160 °F (fahreheit) 0 °C (Celsius) to 71 °C (Celsius) FLAME SENSITIVITY .7 A minimum... -
Page 8: Hsi System Operation (Flow Chart)
f. The Hot Surface Ignitor will turn on and after approximately four (4) seconds the Hot Surface Ignitor will shut off. The Gas Valve will be energized and a burner flame should be evident for approximately seven (7) seconds and then shut off. g. -
Page 9: Normal Operation (Summary)
3. NORMAL OPERATION (summary) When a signal is received from the thermostat supplying 24 volts to the W terminal of the HSI module, the control will reset, perform a self check routine, flash the diagnostic L.E.D. for up to four (4) seconds and a pre-purge delay begins. Following the inter-purge period, the Hot Surface Ignitor is activated and the Gas Valve is energized for the trial for ignition period. -
Page 10: Test Equipment
The following pieces of test equipment will be required to troubleshoot this system with minimal time and effort. MANOMETER Used to measure gas pressure in inches of water column (W.C.) Available from ADC - Part No. 122804 MULTIMETER/VOLTMETER For measuring voltage and/or amperage 1. HSI (Hot Surface Ignition) TROUBLESHOOTING TERMS (definitions) a. -
Page 11: Troubleshooting/System Diagnosis (Detailed)
f. FLAME SENSOR FAULT - if there is a problem/fault within the flame sensing circuit or the Flame Probe, the “red” L.E.D. (light emitting diode) indicator light flashes 2 blinks (i.e., FLAME SENSOR FAULT) continuously until the problem/fault is corrected (fixed) or until the HSI Module is reset manually. - Page 12 b) Start the dryer ... with the burner on, the correct water column (W.C.) reading in inches should be: Natural Gas ........3.5 - 4 inches W.C. L.P. (liquid propane) Gas ....10.5 - 11 inches W.C. When a gas dryer is first started (during initial time of installation/start-up), it has a tendency not to ignite on the first ignition attempt.
- Page 13 c) Flame Failure “Reignition” If the established flame signal is lost while the burner is operating, the HSI module (controller) will respond within 0.8 seconds. The gas valve will be de-energized, the HSI module resets and starts a new ignition sequence in an attempt to relight the burner.
- Page 14 VOID THE WARRANTY. IMPORTANT: The ADC Service Department must be contacted prior to any wiring change and/or conversion because, depending on the change/ conversion required, some parts may have to be added, deleted, or changed.
- Page 15 4) HSI (Hot Surface Ignition) 24 VAC Redundant Gas Valve IMPORTANT: The HSI 24 VAC Redundant Gas Valve contain no serviceable parts. REPLACEMENT COILS ARE NOT AVAILABLE. IMPORTANT: THERE ARE NO PARTS AVAILABLE FOR FIELD REPAIR. Replace gas valve only with exact model and/or type number as noted on gas valve.
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Page 16: Parts List (Basic)
E. PARTS LIST (basic) When ordering replacement parts from the factory, please specify model number and serial number in addition to the part number and part description of the dryer so that your order can be processed accurately and promptly. The information and illustrations listed here may not depict your particular dryer/part exactly. - Page 17 HSI (Hot Surface Ignition) SYSTEM COMPONENTS Hot Surface Ignition (HSI) Module Upshot Burner Tube with Hot Surface Ignitor (HSI)/Flame Sensor 24 VAC Redundant Gas Valve Assembly 24 VAC Transformer...
- Page 18 ADC Part No. 450401 3 - 12/15/08 - 0...