Primary Heater, Heater Element, Line Voltage | Graco A-25 specs

Repair

Primary Heater

Read Warnings on page 4. Wait for heater to cool before repairing.

Heater Element

1. Turn main power OFF

. Disconnect power

supply.

2.Relieve pressure, page 13.

3.Wait for heaters to cool.

4.Remove heater shroud.

5.See FIG. 7. Disconnect heater element wires from heater wire connector. Test with ohmmeter.

Heater Rod
Element
Wattage	Ohms

1500	30-35

6.To remove heater element, first remove thermocou- ple (361) to avoid damage, see step 7, page 30.

7.Remove heater element (358) from housing (351). Be careful not to spill any fluid left in housing.

8.Inspect element. It should be relatively smooth and shiny. If there is a crusted, burnt, ash-like material adhered to element or sheath shows pitting marks, replace element.

9.Install new heater element (358), holding mixer (360) so it does not block thermocouple port (P).

10.Reinstall thermocouple, page 30.

11.Reconnect heater element leadwires to heater wire connector.

12.Replace heater shroud.

Line Voltage

The primary heaters output their rated wattage at 230 Vac. Low line voltage will reduce power available and the heaters will not perform at full capability.

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3A1570A

Image 28

Graco A-25 important safety instructions Primary Heater, Heater Element, Line Voltage

Contents

Important Safety Instructions Repair-Parts Contents Proportioner Models SystemsRelated Manuals Manual Description Electric Shock Hazard Fire and Explosion Hazard Equipment Misuse Hazard Important Two-Component Material Information Changing Materials Temperature Control Diagnostic Codes DataTrak Diagnostic CodesSymbol Code Code Name Diagnosis Cause E01 High fluid temperature Causes of E01 ErrorsSensor Connector Continuity Checks Pins Description Reading Checks E02 High zone current E03 No zone current E06 Communication cable unplugged E05 Control board over temperatureE99 Loss of communication Pressure Relief ProcedureShutdown Before Beginning Repair ParkFlushing Open Close Troubleshooting ProblemsPower Pumps and Pressures Problem Cause Solution Problem Cause Solution Electronics Problem Cause Solution Heater See E04 Fluid Temperature SenSor FTS or thermocouple discon Hose Heat System Problem Cause Solution Repair Follow Pressure Relief Procedure,Disconnect Pump Connect Pump Install Air Motor Remove Air Motor Air Filter Element Installation Recirculation / Over Pressure Relief BlockAir Inlet Filter / Water Separator Auto Drain Air Filter Element Removal Temperature Control Module Temperature Control Module ConnectionsConnector Description Bottom of Power Modules Replacing Temperature Control Assembly Modules Test SCR Circuit Heater Element Primary HeaterLine Voltage KW Dual Zone Heater Thermocouple Thermocouple Overtemperature Switch Check Hose ConnectorsPins Result Heated Hose Installation Fluid Temperature Sensor FTSTest/Removal Transformer Secondary Check Replace Transformer Transformer Primary CheckModel Secondary Voltage Replace Circuit Breaker Module Size Component Pump Lubrication System Pump Lubrication System Refer to Reactor A-25 Wiring Schematic, Temperature DisplayFluid Inlet Strainer Screen Detail of Membrane Switches and Temperature Display Board Display Module Replace Battery Replace DataTrak Battery or FuseReplace Fuse Accessories Recommended Spare Parts Parts 7984 100 888 Torque pump locking nuts to 66-74 ft-lbs 90-100 Nm Part Description Qty Cart Nipple Control Panel Screw Wheel Kit Temperature ControlRef. Part Description Qty Fluid Manifold Fluid Inlet Kit Kw Dual Zone Heater, 24J788 Ring Air Motor Pump Assembly PLUG, Pipe Length Connection Outside Ft m From Air Tubing ConnectionsColor Diameter Breaker Module Reactor A-25 Wiring Schematic Phase POD Reactor A-25 Wiring Schematic Simplified Schematic, Heater Controls Technical Data Category Data Graco Standard Warranty Graco Information