Modifying a Unit in the Field
Modifying a unit in the field can have significant implications for safety, performance, regulatory compliance, and warranty coverage. This article outlines what constitutes a modification, why modifications are not recommended, and the responsibilities associated with altering a unit after it leaves the factory.
Purpose of the Article
- This article explains the potential impacts, risks, and responsibilities associated with modifying a unit after it leaves the factory.
Definition of a Modification
- A modification is any change, alteration, or addition made to a unit after it has been manufactured and shipped from the factory.
Why Modifications Are Not Recommended
- Factory designs are engineered and tested to meet performance, safety, and certification requirements. Any unapproved modification may compromise these standards.
Potential Implications of Field Modifications
- Safety Risks - Modifications may create unsafe operating conditions.
- Performance Impact - Additional loads or non‑standard components can affect unit performance and efficiency.
- Electrical Compliance - Field‑installed loads may alter the unit’s MCA/MOP values and must be reviewed by the party performing the modification. Any changes may also require verification of the external conductor size and the appropriate over‑current protection device to ensure compliance with applicable electrical codes.
- Certification Impact - Changes may affect UL Listing or other compliance certifications.
- Warranty Considerations - Warranty claims may be reviewed, and coverage may be affected if a modification contributed to the issue.
- Responsibility - Any modification becomes the responsibility of the party performing the modification.
Trane’s Position
- Trane does not recommend or support any modifications or alterations to the unit.
- Responsibility for any field modification rests solely with the party who performs it.
Additional Considerations
- Reliability - Any modifications could lead to manufactured component risk and/or premature failure.
- Legal Liability - Trane does not accept any responsibility for consequences resulting from a unit modification.
What To Do Instead
- Encourage users to consult approved accessories, authorized service providers, or engineering support.
Contact Information / Resources
- Trane Creative Solution
- Product Catalog for Symbio Precedent (Accessories inside the catalog)
- Product Catalog for Symbio Odyssey (Accessories inside the catalog)
- Product Catalog for Foundation (Accessories inside the catalog)
WARNING:
Information in this article is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience and who comply with all federal, state, and local laws, rules, orders, or regulations related to the installation, service, or repair of a heating or central air conditioning product. Any attempt to install, service, or repair a heating or central air conditioning product may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for the interpretation of the information contained herein, nor can it assume any liability in connection with its use.