ADC ADG-530 Bedienungsanleitung

ADG-530

Hot Surface Ignition System

Technical Manual

American Dryer Corporation

88CurrantRoad

FallRiverMA02720-4781USA

Telephone:+1 (508) 678-9000 / Fax:+1 (508) 678-9447

e-mail:techsupport@amdry.com

www.amdry.com

ADC Part No. 450401-3

Retain This Manual In A Safe Place For Future Reference

American Dryer Corporation products embody advanced concepts in engineering, design, and safety. If this

product is properly maintained, it will provide many years of safe, efficient, and trouble-free operation.

ONLY properly licensed technicians should service this equipment.

OBSERVEALLSAFETYPRECAUTIONSdisplayedontheequipmentorspecifiedintheinstallation/operator's

manual included with the dryer.

THEHSIMODULEIS NOTFIELDREPAIRABLE

and

THEHSIGASVALVEISNOTFIELDREPAIRABLE

We have tried to make this manual as complete as possible and hope you will find it useful. ADC reserves the

righttomake changes from time to time, withoutnoticeorobligation,inprices, specifications, colors, and material,

and to change or discontinue models.

WARNING: UNDER NO CIRCUMSTANCES should the door switch or the heat circuit devices

ever be disabled.

WARNING: The dryer must never be operated with any of the back guards, outer tops, or

service panels removed. PERSONAL INJURY or FIRE COULD RESULT.

NOTE: The wiring diagram for the dryer is located on the right wall, inside the Left Coin Panel area.

Replacement parts can be obtained from your distributor or the ADC factory. When ordering replacement parts

from the factory, you can FAX your order to ADC at (508) 678-9447 or telephone your orders directly to the

ADC Parts Department at (508) 678-9010. Please specify the dryer model number and serial number in

addition to the part number and part description, so that your order is processed accurately and promptly.

The illustrations on the following pages may not depict your particular dryer exactly. The illustrations are a

composite of the various dryer models. Be sure to check the descriptions of the parts thoroughly before ordering.

INSTRUCTIONS TO BE FOLLOWED IN THE EVENT THE USER

SMELLS GAS MUST BE POSTED IN A PROMINENT LOCATION. THE

INSTRUCTIONS TO BE POSTED SHALL BE OBTAINED FROM THE

LOCAL GAS SUPPLIER.

GAS “HOT SURFACE IGNITION” (HSI) SYSTEM

MODELTRITON2465 (ADCPart No. 128974)50/60HzTYPEONLY

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 INJURYand/or PROPERTY DAMAGE.

IMPORTANT: We have tried to make this manual as complete as possible and

hope you will find it useful. However, since the time of this

printing, some information contained herein may have been up-

dated.

ADC RESERVES THE RIGHT TO MAKE CHANGES FROM TIME TO TIME,

WITHOUT NOTICE or OBLIGATION IN PRICES, SPECIFICATIONS, COLORS,

and MATERIALS, and TO CHANGE or DISCONTINUE MODELS or PARTS.

Table of Contents

A. INTRODUCTION ..........................................................................................................2

B. GENERALSYSTEMINFORMATION .......................................................................2

HSISystemComponents/Functions .........................................................................2

FailureToLight- LOCKOUT .....................................................................2

FlameFailureReignition ...............................................................................3

System(basic)ElectricalRatings/Specifications ........................................................5

C. HSI(HotSurfaceIgnition)SYSTEM OPERATION ....................................................5

HSISystemOperation.............................................................................................5

HSISystem Operation(Flow Chart) ........................................................................6

NormalOperation(summary) ..................................................................................7

D. TROUBLESHOOTING .................................................................................................7

TestEquipment ..................................................................................................................8

HSITroubleshootingTerms(definitions) ...................................................................8

Troubleshooting/SystemDiagnosis(detailed) ............................................................9

E. PARTSLIST(basic) ......................................................................................................14

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.

Other Features...

•24 VAC microprocessor based HSI control

•System diagnostic L.E.D. (light emitting diode)

•Automatic reset one (1) hour after lockout

•Multiple tries

•Custom pre-purge and inter-purge timing

•Remote and local sensing

•Flame sense test pins

•Software conforms to “UL 1998” requirements

•Design certified to ANSI Z21.20 and CAN/CSA C22.2 No. 199-M89

B. GENERAL SYSTEM INFORMATION

1. HOT SURFACE IGNITION (HSI) SYSTEM COMPONENTS/FUNCTIONS:

a. The HSI MODULE is designed to be the “controller” of the HSI system. When activated

by the dryer’s controls, this module constantly monitors and controls the functions of the

1) Failure To Light - LOCKOUT

a) Should the main burner fail to light, or if a flame is not detected during the first

trial for ignition period, the gas valve is de-energized and the HSI module goes

through an inter-purge delay before another ignition attempt. The control will

attempt two (2) additional ignition trials before going into LOCKOUT and the gas

valve will be de-energized immediately.

Hot Surface Ignition (HSI) Module

HSI system (i.e., ignitor activation, gas

valve on/off functions, flame verification,

etc.), can be operated at either 50 Hz or

60 Hz; and has self diagnostic capabilities.

The L.E.D. (indicator light) on the HSI

module simplifies the troubleshooting

procedure in the event of a fault within the

HSI system. If the LED on the HSI module

does not blink constantly, then the system

is functioning properly. A “red” L.E.D.

(LOCKOUT MODE) indicates that ignition

flame has not been confirmed. Refer to the

TROUBLESHOOTING SECTION of this

manual for specific diagnostic information.

24 VAC Transformer

(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.

2) FlameFailureReignition

a) If the established flame signal is lost while the burner is operating, the HSI module

will respond within 0.8 seconds. The gas valve is de-energized, the HSI module

resets and starts a new ignition sequence in an attempt to relight the burner. If the

burner does not light, the HSI module will de-energize the gas valve. The HSI

module will make two (2) more attempts to relight the burner. If the burner does

not relight, the HSI module will go into LOCKOUT. If flame is reestablished,

normal operation resumes.

IMPORTANT: The HSIMODULEis a precisioninstrument,andshould behandled

carefully. ROUGHHANDLINGorDISTORTINGCOMPONENTS

COULDCAUSE THEMODULETO MALFUNCTION.

WARNING: THE HSIMODULEIS NOT FIELDREPAIRABLE.

NOTE: Toreset the HSIMODULE ifit is inthe LOCKOUTMODE,open and closethe

maindoor thenrestart thedryer. If themodule repeatedlygoes intoLOCKOUT,

referto theTROUBLESHOOTING SECTION ofthis manual.

b) The 24 VAC TRANSFORMER is designed to step down the operating (primary)

voltage of the dryer from 120 VAC, 208 VAC, or 240 VAC to the 24 VAC

(secondary voltage) which is necessary to operate the HSI system and in some

cases the controls of the dryer.

The 24 VAC TRANSFORMER has multi-primary taps which allow for one (1) transformer to

be used for any voltage application including...120 volt, 208 volt, or 240 volt. Refer to the

SERVICE INFORMATION SECTION of this manual for specific transformer/wiring

terminationinformation.

36E Redundant Gas Valve

WARNING: THE HSI GAS VALVES ARE NOT FIELD REPAIRABLE.

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.

d. The HSI 24 VAC GAS VALVE(s) used are of the redundant type which means the

gas valve is actually two gas valves in one; one in series with the other. This is a

safety feature which provides protection against gas flow in the event of a failure of

one of the valves to seat properly. Other features are that the gas valves have a

manual shut off, a pressure tap outlet, and are designed for easy conversion to

regulated L.P. gas.

Upshot Burner Tube

with Hot Surface Ignitor (HSI)/Flame Sensor Assembly

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).

The HOT SURFACE IGNITOR is a silicon carbide ignitor that upon application of

24 VAC will glow bright orange for the inter-purge time period. The proper

location of the silicon carbide ignitor is very important to achieve optimum system

performance for both ignition and flame sensing.

After the inter-purge period the gas valve will open.

Upon ignition, the resistance in the flame sensor electrode changes and the in-

formation is sent to the HSI module via the sensor probe lead connection to the

module. Once the resistance is changed and sensed, the HSI module will sustain

the gas flow (provide 24 VAC power to the gas valve).

2. SYSTEM(basic) ELECTRICALRATINGS/SPECIFICATIONS

INPUTPOWER CONTROL: 18-30VAC 50/60Hz

INPUTCURRENTDRAIN 300mA@24VACwithGASVALVERELAYENERGIZED

(control only)

GASVALVERATING 2.0A@24VAC

OPERATINGTEMPERATURE 0 °F (fahreheit)to 160°F (fahreheit)

0 °C (Celsius) to 71 °C (Celsius)

FLAMESENSITIVITY .7Aminimum

FLAMEFAILURERESPONSETIME 0.8secondsmaximum

TYPEofGASES NATURAL, L.P. (liquid propane), or manufactured

SIZE(length x width x height) 4.23” x 3.23” x 1.63”(withcover)

10.75cmx8.21cmx3.97cm(withcover)

WEIGHT 5 ounces (nominal)

145grams(nominal)

ENCLOSURE GRAY (NorylN-190)FIRERETARDANTPLASTIC

TRIESFORIGNITION three (3)

TRIALFORIGNITIONPERIOD 4 seconds

INTER-PURGE 3.5 seconds

C. HSI (Hot Surface Ignition) SYSTEM OPERATION

1. HSISYSTEM OPERATION

a. The HSI Module’s “red” indicator light will light for up to approximately five (5) seconds

(self check routine).

If the HSI Module’s “red” indicator light

stays on or flashes continuously, then the

HSI module is wired incorrectly or has failed.

b. Start the drying cycle.

c. The Hot Surface Ignitor will turn on. After

approximately four (4) seconds the Hot

Surface Ignitor will shut off and the gas

valve will be energized. The flame should

now be established.

d. With the burner flame on, remove the flame sensor wire from the S2 terminal of the HSI

module. The burner flame must shut off immediately.

e. Stop the drying cycle, with the Flame Sensor removed, restart the drying cycle.

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. The HSI Module will attempt two (2) additional ignition trials after which the HSI

Module will LOCKOUT and the “red” indicator light will flash 3 blinks, wait one (1)

second, and then keep flashing 3 blinks continuously until the HSI Module is reset

manually.

h. Functional check of the HSI (Hot Surface Ignition) Module is complete.

2. HSISYSTEM OPERATION(Flow Chart)

HSI Module Enters

Internal Routine Check

L.E.D. Indicator

Stays On Approx. 4 Seconds

Hot Surface Ignitor

Starts

Glow

If L.E.D. Indicator

Stays On Continuously

Replace HSI Module

If L.E.D. Continuously

BlinksTwice in Succession

There Is a Fault In The

Heat Sensing Circuit

Approx. 4 Seconds Later

Gas Valve Opens

Approx. 4 Seconds Later

Hot Surface Ignitor Shuts Off

Ignition Evident?

(FLAME VERIFIED)

--------------------

YES NO

Normal Heating Cycle Flame Out

FLAME NOT VERIFIED

HSI Module Will Wait 15-17 Seconds

And Then Go Into Retry Mode

HSI Module Will Attempt To Retry 3 Times

Flame Not

Established

After Retrys

HSI Module

LOCKOUT

--------------------------

------

Module L.E.D.Will Continuously

Blink 3 Times In Succession

Computer

Calls

For Heat

Open and Close Main Door

Restart Dryer

HSI Module Will Wait 15-17 Seconds

And Then Go Into Retry Mode

HSI Module Will Attempt To Retry Twice

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.

When a flame is detected during the trial for ignition, the Hot Surface Ignitor is deactivated

and the Gas Valve remains energized. The thermostat and main burner flame are constantly

monitored to assure the system continues to operate properly. When the thermostat/micro

processor controller (computer) is satisfied and the demand for heat ends, the Gas Valve is

de-energized immediately.

Should the main burner fail to light, or a flame is not detected during the first trial for

ignition period, the Gas Valve is de-energized and the HSI Module (controller) goes through

an inter-purge delay before another ignition cycle is attempted. The HSI Module will

attempt two (2) additional ignition trials before going into LOCKOUT and the Gas Valve

relay will be de-energized immediately.

Recovery from LOCKOUT requires a manual reset by either resetting the thermostat or

removing the 24 volts for a period of five (5) seconds.

If the computer is still calling for heat after one (1) hour the HSI Module (controller) will

automatically reset and attempt to ignite the burner again.

D. TROUBLESHOOTING

The troubleshooting information provided in this manual is intended for use only by

QUALIFIED SERVICE TECHNICIANS. Observe ALL safety precautions displayed on the

equipment or specified in the Installation/Operator’s Manual included with the dryer.

IMPORTANT: UNDER NO CIRCUMSTANCES SHOULD ANY SAFETY OR HEAT

CIRCUIT DEVICE EVER BE DISABLED.

The following troubleshooting guide

provides systematic procedures for

isolating equipment problems, and again,

is intended for use by a QUALIFIED

SERVICE TECHNICIAN.

TEST EQUIPMENT

The following pieces of test equipment will be required to troubleshoot this system with

minimal time and effort.

1. HSI(HotSurfaceIgnition)TROUBLESHOOTINGTERMS (definitions)

a. INTERNALCONTROLFAILURE - HSI module “red” L.E.D. (light emitting diode) indicator light

stays on continuously. This indicates there is a system fault and most likely the fault is the HSI

Module itself.

b. HSI MODULE “RED” L.E.D INDICATOR LIGHT - this light is located on the top left side of the

HSI Module (refer to the illustration on page 2 or page 5 of this manual). This DIAGNOSTIC

INDICATOR simplifies the operational and troubleshooting procedures of the system.

c. FLAMEOUT - burner flame shut down by the HSI Module due to lack of flame verification. This

condition occurs only after ignition has been evident but is lost. The HSI system will immediately

attempt to relight the burner for a total of three (3) times before going into LOCKOUT. Once in the

LOCKOUT MODE the HSI Module must be reset manually.

d. TRIAL FOR IGNITION (T.F.I.) - the period after the Hot Surface Ignitor shuts off and before the

gas ignites.

e. LOCKOUT - when the flame is lost or the gas is not ignited after three (3) tries. The “red” L.E.D.

(light emitting diode) indicator light flashes 3 blinks (i.e., LOCKOUT) continuously until the HSI

Module is reset manually.

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

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