GE DNCK440EB Technical Service Manual


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GE DNCK440EB Technical Service Manual | Manualzz

GE Commercial Laundry

TECHNICAL SERVICE GUIDE

GE Commercial SmartCard Reader Dryers

MODEL SERIES

ELECTRIC AND GAS DRYERS

DNCJ440EB/DNCJ440GB (Bridgepoint Reader)

DNCK440EB/DNCK440GB (ESD Reader)

Pub 31-15526 06/02

Table of Contents

Rating Plate/Service Information

Features

Installation Highlights

Basic Disassembly

Control Panel Field Service Mode

Troubleshooting flowcharts

Control Board Layout

Schematic/Wiring Diagram

Parts Pages/Exploded Views

Warranty

2

3

4

10

12

13

15

16

18

26

1

RATING PLATE AND SERVICE INFORMATION LOCATION

GE Commercial Gas and Electric Dryers have a

Rating Plate located on the front inside door opening at the top right. It lists the Model Number,

UL listings, and individual product serial number.

You can see the rating plate by simply opening the dryer door.

CAUTION!: Always disconnect appliance from power prior to servicing to avoid shock hazard.

A mini-manual is provided inside the control panel and has basic service information. On the back side of the mini-manual is the product schematic, which is valuable in troubleshooting any problems.

Resistances, voltages, and wiring colors are shown and can be used with a volt-ohm meter to check circuitry, and components.

The illustrations on the right provide graphic information on how to access the mini-manual by removing (4) T-20H Torx screws from the top of the control panel and rolling it over on the top of the dryer. The second illustration shows minimanual location, as well as SmartCard reader access.

Remove 4 Screws

CLOTHES CARE SELECTION

PERM

PRESS

COTTON

SYNTHETIC

KNITS

DELICATES

HEAT SETTING

FABRIC START

T

COTTONS..................... HIGH HEA

T

PERM PRESS............... HIGH HEA

WITH CO

OL DOWN

SYNTHETIC KNITS......MED HEA

T

DELICATES.

..........

LOW HEAT

DOOR OPEN

ING

DRY

EST. TIME

REMAINING

COOL D

OWN

$

Dual Seven Segment

Display (DSSD)

Card

Reader

Mini Manual

Connector Cable

Remove 4 Screws

Card Reader

2

FEATURES

GE Commercial Laundry clothes dryers

DNCJ440E/GA0W (equipped with a BridgePoint

Card reader), and DNCK440E/GA0W (equipped with ESD Card reader) provides new technology and flexibility to the proven GE dryer platform.

These two systems provide the Commercial Laundry operators with the ability to control pricing, usage, and a multitude of functions, along with audit functions for successful operation control including activity reports.

Laundry Logic Management Software provides full audit/transactional records displayed in 30 reports.

Theft and vandalism is greatly reduced by removing cash from the dryer. Collection activities are reduced increasing productivity.

End users benefit because all the information is stored on a card that retains all necessary usage information. In both units a central reader station is located at the Laundry site, the user inserts money and the card is encoded to provide the service level required by the user. The card is then inserted into the dryer reader port, and the cycle is selected by the user and the card is adjusted to charge for usage.

The user can then replenish their card for the next usage at the ESD Value Transfer Machine or VTM, for BridgePoint the SmartLaundry TM Cash2Card

Value-Add Terminal (for all options contact

BridgePoint at 1-800-562-5875, or ESD at 1-800-

523-1510, ext. 104) for more information on terminals. The product warranty specifies that the Card

Reader is serviced by the readers’ original equipment manufacture, readers are available and listed as GE Part #’s for the following models:

DNCJ440E/G BRIDGEPOINT READER -

WH12X10217, and DNCK440E/G ESD READER-

WH12X10218.

The durable electronic controls replace timers and analog buttons with membrane keypads, and functions with printed PC board, onboard transformer and programmed logic.

The Keypad electronic Card Reader models have

Field Service Diagnostics mode, which records certain faults and retains them for review by the servicer. A cycle progession mode can also be enabled to make a check of normal component operation.

3

INSTALLATION HIGHLIGHTS

It is IMPORTANT to read and understand the complete installation instructions for your GAS or

ELECTRIC Commercial SmartCard dryers. The installation highlights will cover exhausting tips, gas line installation tips, and electric dryer hookup requirements. Full comprehensive installation instructions for your particular model is shipped with every dryer. FOR QUESTIONS ON INSTAL-

LATION, CALL: 1-800-626-2003.

A good installation makes for good performance and consist of the following steps as outlined in your installation instruction shipped with the appliance.

STEP 1- Prepare the area and exhaust for installation of new dryer.

STEP 2- Check and make sure the existing external exhaust is clean and meeted the installation specifications.

STEP 3- Remove the foam shipping pads.

STEP 4- Move the dryer to the desired location.

STEP 5- Connect powersupply.

STEP 6- Connect the external exhaust.

STEP 7- Level your dryer.

STEP 8- Check the operation of the power supply and venting.Check the installation instruction for special installation for Alcove or Closet, Bathroom or Bedroom, Mobile or Manufactured Home, for side and bottom exhaust. They are completely covered in the product installation instructions.

FOR YOUR SAFETY:

WARNING

Use only rigid metal or flexible metal 4” diameter ductwork for exhausting to the outdoors. Never use plastic or other combustible, easy to puncture ductwork.

This appliance must be properly grounded and installed per the appliance installation instructions shipped with every appliance.

Do not install or store appliance in an area where it will be exposed to water and/or weather.

Install the dryer where the temperature is above

50 0 F. for correct operation of dryer controls.

EXHAUSTING:

The MOST IMPORTANT element to good performance is VENTING the dryer. With out sufficient airflow dry times will be longer and linting will develop.

If you are installing in an existing wall duct make sure that you make sure the internal duct opening is clear and that the hood damper opens and closes freely.

REMOVE LINT FROM WALL EXHAUST

Minimum clearance to combustible surfaces and for air openings are: 0 in. clearance both sides and

1 in. rear. Consideration must be given to provide adequate clearance for installation and service.

PREPARING FOR INSTALLATION OF NEW

DRYER

4

EXHAUSTING:

!

WARNING! - TO REDUCE THE RISK

OF FIRE OR PERSONAL INJURY:

-Exhausting the dryer to the outdoors is strongly recommended to prevent large amounts of moisture from being blown into the room.

-Use only metal duct.

-Do not terminate exhaust in a chimney, any gas vent, under an enclosed door (crawl space), or into an attic. The accumulated lint could create a fire hazard.

-Provide an access for inspection and cleaning of the exhaust system, especially at turns. Inspect and clean at least once a year.

-Never terminate the exhaust into a common duct with kitchen exhaust. A combination of lint and grease could create a fire hazard.

-Do not obstruct incoming or exhausted air.

-NEVER install a screen in or over the exhaust duct. This could cause lint build up.

-Wall caps must be installed at least 12 in. above ground level or any other obstructions with the opening pointing down.

-If roof vents or louvered plenums are used, they must be equivalent to a 4-in. dampened wall cap in regard to resistance to air flow, prevention of back drafts, and maintenance requied to prevent clogging.

NOTE: The correct exhaust installation is

YOUR RESPONSIBILITY.

Problems due to incorrect installation are NOT covered in the warranty.

SEPARATION OF TURNS:

-For best performance, separate all turns with at least 4 ft. of straight duct., including distance between last turn and exhaust hood.

The MAXIMUM ALLOWABLE length of the exhaust system depends upon the type of duct, number of turns, the type of exhaust hood (wall cap), and all conditions noted below. Both rigid and flexible metal are shown in the chart below.

TURNS OTHER THAN 90 0

-One turn of 45 0 or less may be ignored

-Two 45 0 turns should be treated as one 90 0 turn.

-Each turn over 45 0 shold be treated as one 90 0 turn.

SEALING OF JOINTS

-All joints should be tight to avoid leaks. The male lend of each section of duct must point away from dryer.

-Do not assemble the ductwork with fasterners that extend into the duct. They will serve to collect lint.

-Duct joints can be made air tight by wrapping the overlapped joints with duct tape.

-Horizontal runs should slope down toward the outdoors 1/2 in. per foot.

EXHAUST SYSTEM CHECK LIST

HOOD OR WALL CAP

-Terminate in a manner to prevent back drafts or entry of birds or other wildlife.

-Termination should present minimal resistance to the exhaust air flow and should require little or no maintenance to prevent clogging.

INSULATION:

Duct work that runs through an unheated area or is near air conditioning, should be insulated to reduce condensation and lint build-up.

5

INSTALLATION HIGHLIGHTS/VENTING

The dryer comes ready for rear exhausting. Refer to your installation instructions if space is limited and you need to exhaust from the sides or bottom of cabinet.

An example of standard rear exhaust vented at floor level is shown below.

6

INSTALLATION HIGHLIGHTS/LEVELING

It is also important that you take the time to level the dryer. It helps to remove vibration, “walking”, and improves clothing turn over rate for improved drying. Illustration below show the correct method to level the dryer.

INSTALLATION HIGHLIGHTS/

ELECTRICAL REQUIREMENTS

(ELECTRIC DRYER)

This dryer must be connected to an individual branch circuit, protected by the required timedelay fuses or circuit breakers. A four or three wire, single phase, 120/240V or 120/208V, 60

Hz, 30 amp circuit is required.

If the electric supply doesn’t meet the above specifications, then call a licensed electrician.

GROUNDING INSTRUCTIONS

This dryer must be connected to a grounded metal, permanent wiring system, or an equipment-grounding conductor must be run with the circuit conductor and connected to the equipment grounding terminal on the appliance.

ELECTRIC 4-WIRE HOOK UP:

INSTALLATION HIGHLIGHTS/ELECTRIC 4

WIRE HOOK UP:

ELECTRICAL SHOCK AND PERSONAL INJURY:

-DO NOT USE AN EXTENSION CORD OR AN

ADAPTER PLUG WITH THIS APPLIANCE.

Dryer must be electrically grounded in accordance with local codes and ordinances, or in absence of local code, in accordance with NATIONAL ELEC-

TRICAL CODE. ANSI/NFPA NO. 70.

1. Turn off the circuit breaker (s) (30 amp) or remove the dryer’s circuit fuse at the electrical box.

2. Be sure the dryer cord is unplugged from the wall receptacle.

3. Remove the power cord cover located at the back.

7

INSTALLATION HIGHLIGHTS/ELECTRIC

(CONT’)

4. Remove and discard ground strap. Keep the green ground screw for step 7.

5. Install 3/4” UL recognized strain relief to power cord entry hole. Bring power cord through strain relief.

6. Connect power cord as follows:

A. Connect the 2 hot lines to the outer screws of the terminal block (marked L1 and L2).

B. Connect the neutral (white) line to the center of the terminal (marked N).

7. Attach ground wire of power cord with the green ground screw (hole above strain relief bracket).

tighten all terminal block screws (3) completely.

8. Properly secure power cord to strain relief.

9 Reinstall cover.

7. Properly secure power cord to strain relief.

8. Reinstall the cover.

!

WARNING: NEVER LEAVE THE

COVER OFF THE TERMINAL BLOCK.

ELECTRIC 3 WIRE HOOKUP

!

WARNING: NEVER LEAVE THE

COVER OFF THE TERMINAL BLOCK.

ELECTRIC 3 WIRE HOOK UP:

1. Turn off the circuit breaker (s) (30 amp) or remove the dryer’s circuit fuse at the electrical box.

2. Be sure the dryer cord is unplugged from the wall receptacle.

3. Remove the power cord cover located at the back.

4. Install 3/4” UL recognized strain relief to power cord entry hole. Bring power cord through strain relief.

5. Connect power cord as follows:

A. Connect the 2 hot lines to the outer screws of the terminal block (marked L1 and L2).

B. Connect the neutral (white) line to the center of the terminal (marked N).

6. Be sure ground strap is connected to neutral

(center) terminal of block and to green ground screw on cabinet rear. Tighten all terminal block screws (3) completely.

8

INSTALLATION HIGHLIGHTS/GAS

GAS SUPPLY

A 1/8-in. National Pipe Taper thread plugged tapping, accessible for test gauge connection, must be installed immediately upstream for the gas supply connection to the dryer. Contact your local gas utility should lyou have questions on the installation of the plugged tapping.

Supply line is to be 1/2-in. rigid pipe and equipped with an accessible shut-off within 6 ft. of, and in the same room with, the dryer.

Use pipe thread sealer compound appropriate for natural or LP gas or use Teflon Tape.

Connect flexible metal connector to dryer and gas supply.

Open shut-off valve, use commercial leak detector fluid and check for leaks. Reinstall if leaks are detected.

9

TIGHTEN ALL CONNECTIONS USING TWO

ADJUSTABLE WRENCHES

USE COMMERCIAL

LEAK TEST FLUID

TO CHECK FOR

LEAKS

MECHANICAL DISASSEMBLY

Basic disassembly is very straightforward. Simple hand tools are used with the exception of the (4)

T-20H Torx screws from the top of the control panel.

2. Remove two screws from Front to Cabinet sides.

Service the control panel:

1. Remove the 4 screws from the top of the control panel, and carefully tilt out top releasing from 3 tabs.

3. Remove wiring harness connectors at lower left side of door, tilt front out and lift off base.

Service the Cover:

1. Remove the two screws located in the top left and right of front dryer opening,

Service the Drum:

1. Remove the top/front as described previously.

2. Carefully spread sides to accomodate lifting out the drum.

2.Remove the four T-20H Torx screws from the control panel top.

3. Remove screws for control panel bottom, and lift off top.

Service the Cabinet Front:

1. Remove screws from right and left corner of dryer door opening at top.

10

3. Remove drum belt at bottom front access hole by reaching in and pulling idler arm to release.

MECHANICAL DISASSEMBLY

4. Lift out drum by lifting up and out to clear cabinet and remove from rear drum bearing.

NOTE: When reassembling make sure belt is on idler correctly, and that drum bearings in the front of the blower housing is correctly located on the drum.

Service the Idler/Motor:

1. Remove Top as described previously.

2. Remove Drum as described preiously.

3. Access to Idler Assembly, and Motor is shown.

Service the Drum Shaft and Bearing Retainer

Assembly:

1. Remove the Top, Drum as described previously.

2. Drum shaft ismounted to heat Deflector, remove screws.

3. Rear of cabinet (view below) shows bearing retainer which can be removed by removing 4 screws.

IDLER

4. Ground strap is visible in illustration, take care to replace it when servicing the bearing retainer.

Service the Heat Deflector:

1. Remove top as previously described.

2. Remove Front as previously described.

3. Remove Drum as previously described.

4. Access to Heat Deflector is shown.

REMOVE 4 SCREWS TO REMOVE

HEAT DEFLECTOR

11

ELECTRONIC CONTROL FIELD SERVICE

MODE

The Field Service Mode for the L3D Controls allows the field service technician to test the input and outputs of the control. It also allows the technician to step through the test cycle to operate the individual components of the dryer.

Field Service more can be entered via manual entry by employing a special Service Mode card

(available to commercial laundry owners) into the

SmartCard reader.

Manual entry into the Field Service mode requires the Model Selector harness group #12

(165D1349G012) GE PART #WD21X10068 for

Electric units, group #11 (165D1349G011) GE

PART #WD21X10030 for Gas units to be installed into the L3D control. To do so, power down the machine, remove the currently installed Model

Selector plug and set it aside. Insert the appropriate Model Selector harness and re-apply power to the machine.

The LED display will show Fd (Field Service

Diagnostics) when the service mode is entered.

When any keypad is pressed an audible beep will occur for 0.5 seconds. The intial step is labeled step “0”. The user entry into diagnostics causes the control to display Fd, and all LEDs on the keypads to light up. The next displays by the control are Dryer type (GAS/ELECTRIC), memory version number. The displays last for 0.5 seconds.

When the LED display goes off you may proceed to the next step by pressing the PERM PRESS keypad, or to go back to the previous display press the DELICATES keypad.

Termination of the Diagnostics Mode can be accomplished in three ways.

1. Unplug the dryer.

2. Electronic control will exit service mode after 30 minutes.

3. Remove the Diagnostics Card. A table is listed on this page to interpret the codes in the diagnostics sequence.

12

ELECTRIC DRYER TROUBLESHOOTING

13

GAS DRYER TROUBLESHOOTING

14

CONTROL BOARD LAYOUT

Control Board

WARNING

POWER MUST BE DISCONNECTED BEFORE SERVICING THE APPLIANCE.

Model DNCJ440EB / DNCK440EB Electric Dryers

BROWN W/WHITE

BROWN

BROWN

BROWN

BLUE

GRAY

6 1

RLY1

RLY3

8

QC1

2A

L3D DRYER

10

N

9

7

RLY5

16

J

RLY4

L1

YELLOW

BLACK

ORANGE

ORANGE

PURPLE

CN1

DS

WHITE

CN5

CN4

1

2

3

6

7

4

5

CN3

SW1

CN2

RED

WHITE

DARK BLUE

ORANGE

YELLOW

MODEL SELECTOR

(SEE SELECTOR PLUG CHART)

SELECTOR PLUG CHART

ELECTRIC DRYER

NORMAL OPERATION PLUG MANUAL TEST PLUG

GAS DRYER

NORMAL OPERATION PLUG MANUAL TEST PLUG

PART NO. WD21X10026 PART NO. WD21X10068 PART NO. WD21X10035 PART NO. WD21X10030

Model DNCJ440GB / DNCK440GB Gas Dryers

BROWN W/WHITE BLACK

BLACK

BLUE

BROWN

6 1

RLY1

RLY3

8

QC1

2A

L3D DRYER

10

9

N

7

RLY5

16

J

RLY4

L1

YELLOW

YELLOW W/BLACK

BLACK

YELLOW W/BLACK

CN1

DS

WHITE

CN5

CN4

3

4

5

1

2

6

7

CN3

SW1

CN2

RED

WHITE

DARK BLUE

ORANGE

YELLOW

MODEL SELECTOR

(SEE SELECTOR PLUG CHART)

15

SCHEMATIC/WIRING DIAGRAM

ELECTRIC

BLACK PURPLE

WHITE

BROWN W/YELLOW

CARD READER

1 2 3 4 5 6 7

INLET BIAS

WHITE

GRAY

PURPLE

BLACK

BLUE

BROWN W/WHITE

ORANGE

ORANGE

RED

16

SCHEMATIC/WIRING DIAGRAM

GAS

YELLOW

BROWN W/YELLOW

CARD READER

DS

1 2 3 4 5 6 7

PURPLE

BLACK

YELLOW W/BLACK

BROWN W/WHITE

YELLOW

BLACK

17

GAS CONTROL PANEL/BLOWER

18

GAS CABINET/DRUM

19

20

21

ELECTRIC CONTROL PANEL/BLOWER

22

ELECTRIC CABINET/DRUM

23

24

25

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