Nordyne E2EB 012H User Manual

E2 Series
Electric Furnaces
Service Manual

Nordyne E2EB 012H Specifications

General

Voltage	240V
Amperage	50A
Wattage	12, 000W
BTU	12 KW
Heating Capacity	12 kW
Mounting	Upflow

Summary

Furnace Sequence of Operation

Sequence of Operation

Sequencer Operation and Testing

Sequencer Function and Testing

Testing the Sequencer

Provides step-by-step instructions for testing the sequencer's continuity and operation.

Control Transformer

Control Transformer Specifications and Testing

Checking the Control Transformer

Outlines the procedure to test the primary and secondary voltage of the transformer.

Heating Elements

Testing Heating Elements

Provides steps to test heating elements for continuity and ground faults using an ohmmeter.

Electrical Requirements

Safety Warning: Electrical Shock Hazard

General safety warning regarding disconnecting all electrical power before performing maintenance.

Connecting Supply Service Wires

Step-by-step guide on how to remove panels, locate openings, and connect supply service wires.

Selecting Blower Speed

Blower Speed Safety Warning

Safety warning about motor leads contacting non-insulated metal components.

Changing Blower Speed

Wiring Diagrams

E2EH 010 Wiring Diagram

Detailed wiring diagram for the E2EH 010 model electric furnace.

E2EH 012 Wiring Diagram

Detailed wiring diagram for the E2EH 012 model electric furnace.

E2EH 015, 017 Wiring Diagrams

Detailed wiring diagrams for the E2EH 015 and 017 models electric furnaces.

E2EH 020, 023 Wiring Diagrams

Detailed wiring diagrams for the E2EH 020 and 023 models electric furnaces.

E2EB 010 Wiring Diagram

Detailed wiring diagram for the E2EB 010 model electric furnace.

E2EB 012 Wiring Diagram

E2EB 015, 017 Wiring Diagrams

E2EB 020, 023 Wiring Diagrams

Service Diagrams

2-Wire Relay Box for A/C E2EH 020 and 023 Units

4-7-Wire Relay Box for H/P E2EH 020 and 023 Units

4-7-Wire Relay Box for H/P E2EB 020 and 023 Units (Part 1)

4-7-Wire Relay Box for H/P E2EB 020 and 023 Units (Part 2)