SEELEY INTERNATIONAL Braemar TH430

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Summary

SECTION 2 PRODUCT SPECIFICATIONS & WIRING DIAGRAMS

TH3 & TH3 X Wiring Diagram

Electrical wiring diagram for TH3 and TH3X models.

TH4 Wiring Diagram - No Zones

Electrical wiring diagram for TH4 models without zones.

TH4 Wiring Diagram - 24 V Zone Control

Electrical wiring diagram for TH4 models with 24V zone control.

TH4 Wiring Diagram - 240 V Zone Control

Electrical wiring diagram for TH4 models with 240V zone control.

TH5 Wiring Diagram - No Zones

Electrical wiring diagram for TH5 models without zones.

TH5 Wiring Diagram - 24 V Zone Control

Electrical wiring diagram for TH5 models with 24V zone control.

TH5 Wiring Diagram - 240 V Zone Control

Electrical wiring diagram for TH5 models with 240V zone control.

SECTION 5 SERVICE & TROUBLESHOOTING

General Checks

Heater Troubleshooting

Detailed checks for common heater operational problems.

Start-up Flowchart - 3 star

Step-by-step guide for normal 3-star heater start-up.

Run Flowchart - 3 star

Step-by-step guide for normal 3-star heater operation.

Start-up Flowchart - 4 & 5 star

Step-by-step guide for normal 4/5-star heater start-up.

Run Flowchart - 4 & 5 star

Step-by-step guide for normal 4/5-star heater operation.

SECTION 7 DIAGNOSTIC CODES

DC 1: P-100 (3 star) or P-55 (4;5 star) closed at start

Diagnosing pressure switch faults at ignition start.

DC 2: P-100 (3 star) or P-55 (4;5 star) failed to close

Diagnosing pressure switch failure to close during ignition.

DC 3: P-100 (3 star) or P-55 (4;5 star) open during run

DC 4: Thermistor > 70°C during run (4;5 star only)

DC 5: Thermistor not connected or short-circuit (4;5 star only)

DC 6: OT4 open (5 star only)

DC 7: Ignition failure

Diagnosing failure to establish flame after ignition attempts.

DC 8: Condensate pressure switch closed at start (5 star)

DC 9: Internal memory failure

DC 10: HX OT1 open

DC 11: EFS shutdown

Diagnosing Electronic Flame Safeguard (EFS) shutdown.

DC 12: P-100 closed at start (4;5 star)

DC 13: P-100 failed to close (4;5 star)

DC 14: P-100 open > 30 sec during run (4;5 star)

DC 15: Thermistor in cool location in duct (4;5 star)

DC 16: Thermistor not installed in duct (4;5 star)

DC 17: Condensate detected during run (5 star)

DC 18: Condensate detected at start (5 star)

DC 19: HX OT2 open at start

Lockout States and Reset Procedure

Explains lockout states and how to reset the system.