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Ecoer EODA18H-4860 User Manual

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ESI (Ultra) Service Manual
www.ecoer.com
1/68
Manufacturer reserves the right to change specifications or designs without notice.
10.2019
ESI (Ultra) R-410A
Unitary Service Manual
Contents
1. General Information ----------------------------- 2
2. ESI (Ultra) Unitary System ---------------------- 3
2.1 Refrigerant Circuit ------------------------------
3
2.2 Function and Control --------------------------
7
2.3
Field Setting ------------------------------------- 17
3. Troubleshooting ---------------------------------- 25
3.1
Problems without Codes --------------------- 25
3.2
Error Codes list --------------------------------- 35
4.
Parts List --------------------------------------------
61
5.
Appendix --------------------------------------------
63
5.1 Sensor Characteristics --------------------------
63
5.2
Wiring Diagram -------------------------------- 67
All phases of this installation must comply with National, State and Local Codes.
IMPORTANT
These instructions do not cover all variations in systems or provide for every possible contingency to
be met in connection with installing and servicing. Should further information be desired or should
particular problems arise which are not covered sufficiently for the purchaser’s purposes, the matter
should be referred to local distributor.

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Questions and Answers:

Ecoer EODA18H-4860 Specifications

General IconGeneral
BrandEcoer
ModelEODA18H-4860
CategoryHeat Pump
LanguageEnglish

Summary

1 General Information

Condensing Unit Model Identification

Explains model letters and capacity for outdoor condensing units.

Air Handler Model Identification

Details model letters and capacity for indoor air handlers.

2.1 Refrigerant Circuit Functional Parts Layout

Functional Parts Layout of Condensing Units

Details functional parts layout of the condensing unit's refrigerant circuit.

2.2 Function and Control Operation Modes

2.2.1 System Operation Modes

Explains system operation modes, including cooling, heating, and defrost.

2.3 Field Setting and Display

2.3.1 Default Display Codes

Explains the 7-segment display codes for unit status and errors.

2.3.2 Setting by Dip Switches

Describes how to configure unit functions using dip switches.

2.3.3 Setting by Pressing Buttons

Details how to adjust settings and query data using control buttons.

3 Troubleshooting

3.1 Problems Without Error Codes

Guides on diagnosing common operational issues not indicated by specific codes.

3.2 Error Codes List

A reference for all system error codes, their descriptions, and resolution pages.

4 Parts List

Condenser Unit Parts Identification

Lists main condenser parts and connection pipes.

Electrical and Mechanical Component Parts

Details fan, motor, sensors, boards, and other mechanical components.

5 Appendix

5.1 Sensor Characteristics Data

Provides resistance and voltage data for various temperature and pressure sensors.

5.2 Wiring Diagrams

Illustrates electrical connections for the unit and thermostat compatibility.

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