Dexter Laundry DN20X2 Guía

USE THE BLUE TABS LOCATED ON THE

RIGHT AND LEFT SIDES OF THE FOLLOWING

DOCUMENT TO ADVANCE TO EACH SECTION.

8533-108-001 10/22

Service and Parts Data

OPL Stack Dryer

DN20X2

Indicates an imminently hazardous situation, which if

not avoided, will result in death or serious injury.

Indicates a potentially hazardous situation, which if not

avoided could result in death or serious injury.

Indicates a potentially hazardous situation which, if not

avoided, may result in minor or moderate injury. It may

also be used to alert against unsafe practices. Minor

burns, pinch points that result in bruises and minor

chemical irritation.

Indicates information or a company policy that relates

directly or indirectly to the safety of personnel or protec-

tion of property.

This is the user caution symbol. It indicates a condition

where damage to the equipment resulting in injury to

the operator could occur if operational procedures are

not followed. TO REDUCE THE RISK OF DAMAGE OR

INJURY, refer to accompanying documents; follow all

steps or procedures as instructed.

This is the electrical hazard symbol. It indicates that

there are DANGEROUS HIGH VOLTAGES PRESENT inside

the enclosure of this product. TO REDUCE THE RISK OF

FIRE OR ELECTRIC SHOCK, do not attempt to open the

enclosure or gain access to areas where you are not

instructed to do so. REFER SERVICING TO QUALIFIED

SERVICE PERSONEL ONLY

Caution! There are sharp edges on various sheet metal

parts internal to the enclosure. Use safety consciousness

when placing or moving your hands while working in the

interior of this equipment.

Caution! To reduce the risk of damage to the Water Inlet

Valve, do not supply inlet water with a temperature that

exceeds 70˚ C.

Caution! To reduce the risk of re or explosion, do not

operate this equipment in any hazardous classied

(ATEX) environment.

Equipment Safety Warnings

Symbols and Terminology Used in this Equipment

Part # 8533-108-001 10/22

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50Hz

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Maintenance

Electric Heated

Parts Data

Machine

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Installation

& Operation

Trouble-

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Electrical

Wiring

Warning! Do not operate equipment if door glass is

damaged in any way.

Warning! Keep clear of rotating parts.

Prohibited! Do not enter this equipment or space.

Prohibited! Do not step or stand on this equipment.

Prohibited! Do not operate without all guards and covers in

place.

Prohibited! Do not operate without all guards and covers in

place.

Prohibited! Do not wash or Dry clothing impregnated with

ammable liquids (petrochemical).

Prohibited! Do not allow children to play in or around

equipment.

Equipment Safety Warnings

Symbols and Terminology Used in this Equipment

Indicates an imminently hazardous situation,

which if not avoided, will result in death or seri-

ous injury.

Indicates a potentially hazardous situation,

which if not avoided could result in death or

serious injury.

Indicates a potentially hazardous situation

which, if not avoided, may result in minor or

moderate injury. It may also be used to alert

against unsafe practices. Minor burns, pinch

points that result in bruises and minor chemical

irritation.

Indicates information or a company policy that

relates directly or indirectly to the safety of per-

sonnel or protection of property.

This is the user caution symbol. It indicates a

condition where damage to the equipment re-

sulting in injury to the operator could occur if

operational procedures are not followed.

TO REDUCE THE RISK OF DAMAGE OR INJURY,

refer to accompanying documents; follow all

steps or procedures as instructed.

This is the electrical hazard symbol. It indicates

that there are DANGEROUS HIGH VOLTAGES

PRESENT inside the enclosure of this product.

TO REDUCE THE RISK OF FIRE OR ELECTRIC

SHOCK, do not attempt to open the enclosure or

gain access to areas where you are not instruct-

ed to do so. REFER SERVICING TO QUALIFIED

SERVICE PERSONEL ONLY

Caution! To reduce the risk of re or explosion,

do not operate this equipment in any hazardous

classied (ATEX) environment.

4 5

Part # 8533-108-001 10/22 Part # 8533-108-001 10/22

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Specs.

Installation

& Operation

Trouble-

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Machine

Service

Electrical

Wiring

• All Dryers must be installed in accordance to

all applicable electrical, plumbing and all other local

codes.

• These installation and operation instructions are

for use by qualied personnel only. To avoid injury

and electrical shock, do not perform any servicing

other than that contained in the installation and op-

eration instructions, unless qualied.

Do not install Equipment in an explosive atmosphere.

•Care must be stressed with all foundation work to

ensure a stable unit installation, eliminating pos-

sibilities of excessive vibration.

•Foundation must be level within 13 mm to ensure

proper washer operation.

Do not operate washer or Dryer if door glass is dam-

aged in any way.

Do not wash or Dry clothing impregnated with am-

mable liquids (petrochemical).

WARNING

Children should be supervised to

ensure they do not operate or play

in or around equipment.

Keep all panels in place to protect against electrical

shock and injury and add rigidity to washer.

WARNING

This appliance is not intended for use by persons (including

children) with reduced physical, sensory or mental capabilities, or

lack of experience and knowledge, unless they have been given

supervision or instruction concerning use of the appliance by a

person responsible for their safety.

A washer should not be allowed to operate if any of the following occur:

• Excessive high water level.

• Machine is not connected to a properly earthed circuit.

• Door does not remain securely locked during the entire cycle.

• Vibration or shaking from an inadequate mounting or foundation

6 7

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Machine

Specs.

Installation

& Operation

Trouble-

shooting

Machine

Service

Electrical

Wiring

Warning! Do not operate equipment if door glass is

damaged in any way.

Warning! Keep clear of rotating parts.

Prohibited! Do not enter this equipment or space.

Prohibited! Do not step or stand on this equip-

ment.

Prohibited! Do not operate without all guards and

covers in place.

Prohibited! Do not operate without all guards and

covers in place.

Prohibited! Do not wash or Dry clothing impreg-

nated with ammable liquids (petrochemical).

Prohibited! Do not allow children to play in or

around equipment.

Prohibited! Do not attempt to open, touch, or pro-

ceed before referring to the manual or unless quali-

ed.

Mandatory! Read all supporting documentation be-

fore operating or maintaining equipment.

Mandatory! Disconnect power before servicing

equipment.

Mandatory! Lock out and tag out before servicing

this equipment.

Mandatory! Children should be supervised to ensure

they do not operate equipment.

8 9

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Parts

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Parts

Maintenance

Electric Heated

Parts Data

Machine

Specs.

Installation

& Operation

Trouble-

shooting

Machine

Service

Electrical

Wiring

Dry only fabrics washed in water

to avoid the risk of fire, including

spontaneous combustions, do not dry:

• Items containing foam rubber, or any

similarly textured rubber-like materials.

• Any items on which you have used a

cleaning solvent or which contain amm.

able liquids or solids, such as naptha,

gasoline, or other oils or waxes.

Table of Contents

Section 1:

Specications .............................. 14-15

Installation Dimensions .....................16

Section 2:

Installation and Operation

Installation Clearances ......................20

Make Up Air .....................................21

Electrical Requirements .....................21

Gas Requirements ............................21

Burner Set Up ..................................21

Exhaust Installation ..................... 22-23

Description of Control .................. 24-25

Operating Instructions ................. 27-28

Programming .............................. 28-33

Section 3:

Wiring Schematics

Dryer Idle ........................................36

Motor Starting and Running...............36

Heat Circuit......................................36

Over Temperature Thermostat...........37

Cool Down .......................................37

End of Cycle.....................................37

Wiring Diagram for DN20X2 Dryer......40

Wiring Schematic for DN20X2 Dryer ...41

Section 4:

Service Procedures

Clothes Door Removal.......................44

Clothes Door Latch Adjustment..........44

Door Switch Removal and Installation.44

Installation of Clothes Door Window and

Gasket..........................................

Dexter Safety Guidelines

WARNING

For your safety, the information in this manual

must be followed to minimize the risk of re

or explosion or to prevent property damage,

personal injury or loss of life.

IF YOU SMELL GAS:

• Do not try to light any appliance.

• Do not touch any electrical switch: do not use any

telephone in your building.

• Clear the room, building or area of all occupants.

• Imm.ediately call your gas supplier from a

neighbor’s telephone.

• Follow the gas supplier’s instructions.

• If you cannot reach your gas supplier, call the

re department. Installation and service must be

performed by a qualied installer, service agency or

the gas supplier.

To activate your warranty, be sure to return

your red warranty form to the factory. Please

have serial number and model ready when

calling for assistance.

10 11

Part # 8533-108-001 10/22 Part # 8533-108-001 10/22

Notes

Parts

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50Hz

Parts

Maintenance

Electric Heated

Parts Data

Machine

Specs.

Installation

& Operation

Trouble-

shooting

Machine

Service

Electrical

Wiring

High Limit Thermostat Locations and

Functions...............................44-45

Pressure Regulator Adjustment ..........45

Heat Sensor .....................................45

Electronic Control Removal ................45

Membrane Switch Replacement .........45

Temperature Sensor Testing ..............45

Temperature Testing .........................46

Temperature Sensor Removal ............46

Upper Front Panel Removal ...............46

Lower Front Panel Removal ...............46

Final Drive Belt Replacement .............46

Motor Drive Belt Replacement............46

Tumbler Pulley Removal/ Installation ..46

Intermediate Pulley and Tension Arm

Removal .....................................47

Tension Arm Support Assembly

Adjustment .................................47

Motor and Blower Assemly Removal

and Installation ...........................47

Air Flow Switch Operation and

Adjustment .................................47

Ignition Transformer Fuse..................47

Ignition Control Transformer ..............47

Electronic Ignition Module ............ 47-48

Spark Ignition Module Removal..........48

Ignition System Function/Sequence....48

Ignition System Checkout ..................49

Spark Electrode Assembly Removal ....49

Gas Valve & Manifold Removal ...........49

Main Burner Orice Removal..............49

Main Burner Removal ........................49

Recirculation Chamber Inspection ......49

Cylinder Removal..............................49

Adjustment of Cylinder Assembly

with Front Panel Removed............50

Tumbler Through Bolt Access Cover ...50

Bearing Housing Removal..................50

Section 5:

Troubleshooting

Trouble Shooting Fault Codes ............55

Troubleshooting Tips.................... 55-58

Section 6:

Parts Data

Cabinet Group ............................. 62-65

Rear Panel & Cover Group.................66

Burner Housing Group .................68-69

Bearing Housing/Tumbler Group ... 70-71

Rear View ................................... 72-75

Control Assembly Group............... 76-77

Door Switch Group ...........................78

OPL Control .....................................79

Section 7:

60 Hz Electric Heated Models

-84..................................................82

-85..................................................86

-86..................................................90

-87..................................................94

Section 8:

50Hz Models

Section 9:

50Hz Electric Heated Models

Section 10:

Maintenance

Regular Required Maintenance......... 104

12 13

Part # 8533-108-001 10/22 Part # 8533-108-001 10/22

Notes

Parts

Data

50Hz

Parts

Maintenance

Electric Heated

Parts Data

Machine

Specs.

Installation

& Operation

Trouble-

shooting

Machine

Service

Electrical

Wiring

Express Stack Dryer Specications

Model DN20X2ND-15

Capacity:

Dry Weight Capacity - lb (kg) 2 x 20 (2 x 9.1)

Cylinder Volume (per tumbler) - cu ft (L) 7 (198.2)

Speed:

Tumbler Speed - RPM 51

Motor Size (per tumbler) - hp (kW) 0.3 (0.25)

Airow (per tumbler):

60 Hz Model - cfm (M3/min) 370 (10.5)

50 Hz Model - cfm (M3/min) 300 (8.5)

Dimensions:

Cabinet Height - in (cm) 68 1/2 (174)

Cabinet Width - in (cm) 27 (68.6)

Cabinet Depth - in (cm) 44 5/8 (113.3)

Door Opening - in (cm) 18 1/8 (46)

Floor to Lower Door Bottom - in (cm) 8 1/2 (21.6)

Floor to Upper Door Bottom - in (cm) 42 (106.7)

Cylinder Diameter - in (cm) 25 1/2 (64.8)

Cylinder Depth - in (cm) 24 (61)

Lint Screen Area (per tumbler) - sq in (sq cm) 285 (1839)

Weight:

Net Weight - lb (kg) 615 (279)

Shipping Information:

Shipping Weight - lb (kg) 650 (295)

Shipping Height - in (cm) 74 (188)

Shipping Width - in (cm) 31.5 (80)

Shipping Depth - in (cm) 49 (124.5)

Gas Requirements (Gas Models Only):

Gas Supply Connection - in (mm) 1/2 (12.7)

Natural Gas Supply (Water Column) - in (cm) 5-8 (12.7 - 20.3)

LP Gas Supply (Water Column) - in (cm) 11 1/2-14 (29.2-35.6)

Gas Usage (Gas Models Only):

60Hz Model (per tumbler) - BTU/hr (kW) 56,000 (16.4)

50Hz Model (per tumbler) - BTU/hr (kW) 47,000 (13.8)

Part # 8533-108-001 10/22

Section 1:

Specications

Parts

Data

50Hz

Parts

Maintenance

Electric Heated

Parts Data

Machine

Specs.

Installation

& Operation

Trouble-

shooting

Machine

Service

Electrical

Wiring

Electrical Requirements:

Gas Models (per stack dryer):

Model Volts / Hz / Phase / Wiring Circuit Breaker Amps / Running Amps / Wire Size

-15 208-240 / 60 / 1 / 2 wire + ground 15 / 3.8 / #12

-15 120 / 60 / 1 / 2 wire + ground 15 / 7.8 / #12

-39 230 / 50 / 1 / 2 wire + ground 15 / 3.8 / 3.5 mm2

-59 230 / 50 / 1 / 2 wire + ground 15 / 3.8 / 3.5 mm2

Electric Models (per tumbler):

Model kW / Volts / Hz / Phase / Wiring Circuit Breaker Amps / Running Amps / Wire Size

-82 15 / 400 / 50 / 3 / 4 wire + ground 30 / 30 / 8.4 mm2

-84 15 / 208 / 60 / 3 / 4 wire + ground 60 / 55 / #4

-85 15 / 240 / 60 / 3 / 4 wire + ground 50 / 50 / #4

Installation Recommendations:

Minimum Clearance Between Machines - in (cm) 0 (0)

Minimum Clearance Behind Machines - in (cm) 18 (45.7)

Make-Up Air Required (per stack dryer) - sq ft (sq cm) 1 (929)

Exhaust Size - in (cm) 8 (20.3)

Max. Exhaust Back Pressure (Water Column) - in (mm) 0.3 (7.6)

Recommended Exhaust Length - ft (m) & 2 elbows 14 (4.3)

16 17

Part # 8533-108-001 10/22 Part # 8533-108-001 10/22

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Parts

Maintenance

Electric Heated

Parts Data

Machine

Specs.

Installation

& Operation

Trouble-

shooting

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Service

Electrical

Wiring

18 19

Part # 8533-108-001 10/22 Part # 8533-108-001 10/22

Notes Notes

Parts

Data

50Hz

Parts

Maintenance

Electric Heated

Parts Data

Machine

Specs.

Installation

& Operation

Trouble-

shooting

Machine

Service

Electrical

Wiring

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