American Dryer Corp ADG-464 manual 2CRB

Page 59

The following information will first describe the sprinkler circuit components and then provide a circuit descrip- tion. Please refer to the ADG-464 ladder diagram (which is supplied with the machine) as the following is described.

SPRINKLER CIRCUIT COMPONENTS

OL12 (overload #12) is a 1.6-amp magnetic and thermal overload device set 1-amp. Its function is to protect and the line voltage of the sprinkler circuit.

T1 is a control transformer whose primary depends on the system line voltage (i.e., 208 VAC, 240 VAC, 380 VAC, 416 VAC, and 480 VAC). Refer to system’s nameplate. Its secondary is 110 volts AC.

L3 is a “red” indicator installed on the electrical enclosure door. Its function is to indicate the presence of 110 VAC to the sprinkler system.

Sprinkler High Limit Controller (SHLC) - Its function is to monitor a preset hi-limit temperature (which is currently set to 550º F [287.8º C]) and to control the activation of the “WATER SPRINKLER” circuit.

SHLC’s (Sprinkler High Limit Controller’s) temperature information is derived from the RTD #4 (Resistive Temperature Device #4), a resistive sensor located on the top right hand side of the tumbler (basket) section. Its exact location is in proximity of the intake and hi-limit temperature probe.

IMPORTANT: An open RTD (Resistive Temperature Device) probe or disconnecting the probe under power will cause the sprinkler to active.

ALL ADG-464 RTD (Resistive Temperature Device) probes are rated for 1,100º F (593.3º C).

SHCL #2 (Sprinkler High Limit Controller #2) contacts (alarm and set point) are configured in the normally open state.

#2CR (#2 control relay) and #3CR (#3 control relay) are relay coils that are energized in a logical manner for circuit control. The following are their associated relay contacts information.

RELAY

NORMALLY CLOSED

NORMALLY OPEN

CONTACT S

RELAYS

 

 

 

 

2 C R

2CRB

2CR1

 

 

 

3 C R

3CRB

NOT USED

 

 

 

S11 and S12 are the actual electrical solenoid connections that turn on or shut off the air actuated water valve. The electrical connections for S11 and S12 are located in the solenoid junction box in the burner section of the ADG-464

S11 = Sprinkler ON

S12 = Sprinkler OFF

IMPORTANT: For proper sprinkler and dryer operation, sprinkler must be powered by a “separate or dedicated” single-phase (1ø) multi-wire branch circuit at dryer’s nameplate voltage.

55

Image 59
Contents ADG-464 Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Troubleshooting TOC Service PartsReturning Warranty Cards Parts Returning Warranty Parts Section What to do if YOU Smell GAS Safety PrecautionsPage Specifications SPECIFICATIONS/DIMENSIONSDimensions Reassembly of Dryer Installation ProceduresPage 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 Preparation for Operation PRE START-UPCleaning Routine MaintenanceMonthly Component System Descriptions Page Page Main AIR Blower and Heat Reclaimer System Page Additives or Solvents Compressed AIR SystemPage Page GAS Burner and Ignition System Switch #1 Recycling Mode Page Page Page Page Page Page Page Safety Devices Level Fault Parts ServiceReturning Warranty Parts Returning Warranty CardsWarranty Page Troubleshooting Probable Causes Power MalfunctionsPossible Solutions 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 Unless the Water Valve to the Sprinkler is Closed General DescriptionBurner Section Input Circuit Component Description Burner Controller Input Signal ComponentsBurner Ignition IntroductionLoad Door Switch DS1B Stop Detector Relay Contact SMD no Output Signal Component DescriptionGAS 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 Components Tumbler Basket Section Electrical MalfunctionsFollowing is for 2-Door Models only Rear Panel Control Problems Probable Causes Possible Solutions PLC OUT PIN 7 = Unload Door Open PLC OUT PIN 10 = Front UP Unload 1 Selection Probable CausesDoor Open Problem Drum Fault Message Malfunction Probable Causes Page Base Section Electrical Malfunctions Front Door SwitchRear Down Switch LS2 Lint Drawer Proximity SwitchesProbable Solutions Lint Chamber Pressure Switch PS3Tumbler Basket Tilt Problems Level Fault Page Lint Screen Mechanism Problem Screen Fault Lint Chamber Air Pressure Problem AIR Fault Pendant Electrical Components Pendant Control MalfunctionsVerify Pendant Electrical Signals Wiring Diagram Temperature Sensing Page Temperature Measurement and Sensing Problems Motors Circuit Wiring to the Analog Input ModuleMotor Protection Device Descriptions Motor Actuation Problems Probable CausesBurner Controller stops heat PLC Programmable Logic Controller Error Messages