ADC AD-464 service manual

Page 71

Heat Reclaimer - the dryer is equipped with a pneumatically operated heat reclaimer, which when open, will recirculate approximately fifteen percent (15%) of the dryers' exhausted air. The heat reclaimer damper is closed until ignition of flame has been established.

a. Heat Reclaimer Piston Replacement

1) Discontinue electrical service to the dryer.

2) Discontinue the air supply to the dryer.

3) Remove the C-clip from one end of the clevis pin.

4) Remove the set screw from the clevis rod.

5) Remove the clevis rod from the piston.

6) Measure the distance between the adjustment nut and adjustment plate for correct piston stroke.

7)Remove the eight (8) 5/16-18 hex nuts as well as the four (4) 5/16" lock washers from the heat reclaimer adjustment rods.

8)Remove the heat reclaimer adjustment plate.

9)Remove the air lines from the top and bottom of the piston.

10)Remove the 1/4" x 1/4" M.P.T. elbow from the top and bottom of the piston.

11)Remove the C-clip from one side of the heat reclaimer base pin.

12)Remove the heat reclaimer base pin from the heat reclaimer piston.

13)Remove the heat reclaimer piston from the eye bracket.

14)To install new heat reclaimer piston, reverse Step #13 thru Step #3.

15)Reestablish the air supply to the dryer.

16)Reestablish electrical service to the dryer. b. Heat Reclaimer Adjustment.

1)Discontinue electrical service to the dryer.

2)Loosen the heat reclaimer nuts on ALL four (4) corners of the heat reclaimer piston.

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Contents American Dryer Corporation Important Note to Purchaser Retain This Manual In a Safe Place For Future ReferenceFor Your Safety Page Table of Contents Section AIR JET System Section Pendant AssemblySection Sprinkler System Explosion could Result Safety PrecautionsNational Electric Code ANSI/NFPA no -LATEST Edition StandardsLiquids Routine MaintenanceCleaning Monthly Lubrication Days After Installation and Every 6 Months Thereafter AdjustmentsGAS Models ADG-464 SpecificationsSteam Models ADS-464 ADG-464 GAS Electrical Service SpecificationsEnclosure / AIR Supply / Exhaust Requirements Installation RequirementsElectrical Requirements and GAS Requirements Operational Service Check ProcedureTumbler Support and Drive System Component DESCRIPTION/REPLACEMENTPage Main AIR BLOWER/HEAT Reclaimer System +Z=X Compressed AIR System Filter element can be cleaned with soap and waterPage Page Page Safety Devices Safety Devices Locations/Functions/Messages Blower Squirrel Cage Fan Motor Assembly Pulley Removal Page Important do not Overtighten V-BELTS FreelyImportant do not Overtighten V-BELTS Blower Squirrel Cage Fan Electrical Components Page Tumbler Basket System Page Page Important do not Overtighten Turnbuckle Important do not Overtighten Turnbuckle Result in Damage to the Dryer and will Void the Warranty Important do not Overtighten Bolts Page Current Limiting Device is Required Rotational Sensor AssemblyPage TOP of Tumbler Basket Temperature Door Assembly Tumbler Basket Electrical Components Page PLC Programmable Logic Controller Description PLC Programmable Logic Controller SystemPage Page 111 PLC Programmable Logic Controller Component Replacement Page Page RTD Page Switch #1 Recycling Mode Page Page Page Combustion Air Damper Page Page Page Burner Air Switch Page Page Page Page Page Page Heat Reclaimer Settings Page Page Important Allow a full 72 hours for the silicone to cure Page Page Page Page Base Section Lint DRAWER/LINT Chamber SwitchesPage Page Resistive Temperature Device RTD RTD Resistive Temperature Device Locations Sprinkler System Description Sprinkler SystemPage MAN3190 Page AIR JET System AIR JET SystemPneumatic Valve Stack Valve AssemblyImportant Take Notice ... small components Page MAN4223 Internal Pilot and External Pilot Air Supply Pendant Assembly Description Pendant AssemblyADC450186 05/27/99-25 01/14/00-15