EXACT EQUIPMENT

A brand or product family does not identify the system you are buying.

Efficiency, capacity, refrigerant, controls, warranty eligibility and matched performance can depend on the exact indoor and outdoor combination. Require written model identity before authorizing the project.

Check system evidence →Send one project brief

Decision checkpoints

Make every important field explicit.

These checks measure written proposal completeness. They do not rate contractor honesty, workmanship, licensing or project suitability.

Indoor and outdoor identity

Record the full model number for each major component, not only the manufacturer or series.

Published combination

Ask for the AHRI certificate/reference or manufacturer matching evidence when applicable; CoolCompare does not certify a pairing.

Substitution control

State whether substitutions require your written approval and how any price/performance difference will be handled.

Closeout match

Compare installed labels, serials, invoice and warranty registration with the signed proposal.

Side-by-side basis

Replace vague wording with comparable evidence.

Field	Unclear proposal	Comparable basis
Identity	Premium Carrier system	Full outdoor and indoor model numbers
Performance	Up to 20 SEER2	Rating for the exact proposed combination
Availability	Equivalent may be substituted	Written substitution approval required
Closeout	Equipment installed	Labels, serials, invoice and registration reconciled

Before signing

Questions that protect the decision.

Can the exact model change after signing?+

Require a written substitution rule and do not accept a lower specification without a documented decision.

Does one model number prove a matched system?+

No. Central split systems typically require the indoor and outdoor combination plus appropriate matching evidence.

Can CoolCompare certify the match?+

No. Use the official AHRI directory or manufacturer evidence and have the contractor document the proposed combination.

Official references

Verify efficiency, installation and financing claims.

Reviewed 15 August 2026. Official sources define consumer and technical verification routes; they do not approve a contractor or price.

Planning boundary

CoolCompare normalizes written scope and payment terms. It does not certify equipment pairings, verify contractor quality, provide legal advice or promise a local price.