Commercial HVAC Replacement RFQ Guide

Define the engineering basis

• Provide building use, operating hours, ventilation requirements and available load information instead of requesting a like-for-like tonnage quote only.
• Require bidders to state sizing assumptions, design conditions and expected part-load operation.
• Identify electrical, structural, duct, piping, condensate and controls constraints that can materially change installed cost.

Normalize proposals

• Compare equipment efficiency, controls, accessories, warranty, commissioning, maintenance and exclusions on the same basis.
• Separate equipment price from installation, removal, permits, crane or access, electrical work and control integration.
• Request energy and lifecycle assumptions explicitly so projected savings can be checked.

Acceptance and handover

• Define startup, functional testing and commissioning evidence required before acceptance.
• Require as-built information, control sequences, setpoints, manuals, warranty records and operator training.
• Verify final project requirements against applicable codes, standards and authority requirements with the responsible qualified professionals.

Professional references

These references establish the standards, technical framework or authoritative engineering context used for this page. Vendor commercial terms are not used as engineering evidence.

• ANSI/ASHRAE/IES Standard 90.1 — Energy-efficiency benchmark for commercial buildings and building systems.

Commercial independence

PROFENG may display a separately disclosed approved partner after the engineering content. Partner status never changes formulas, conversion factors, procurement criteria, technical references or calculation results. Pending and unapproved programs remain hidden.