AC Condenser Replacement Proposal Template
Professional proposal scope for straight cool condenser and evaporator coil changeouts. Designed to clearly communicate line-item value and prevent scope disputes.
Complete Scope of Work
Copy or customize these verbatim specifications into your contractor proposal.
1. Equipment Removal & Site Preparation
Safe extraction of failed condensing unit and indoor cooling coil.
- Recover legacy refrigerant into clean recovery vessel following EPA regulations.
- Disconnect high-voltage electrical whip and low-voltage thermostat wiring.
- Level ground surface and set heavy-duty composite equipment pad.
2. Equipment Installation
Placement of outdoor condenser and cased evaporator coil.
- Set new high-efficiency AC condenser with scroll compressor and hail guard.
- Install matching all-aluminum cased evaporator coil atop existing furnace/air handler.
- Fabricate custom galvanized sheet metal transition to integrate with existing ductwork.
3. Refrigeration & Drainage
Refrigerant connections, evacuation, and condensate disposal.
- Braze refrigerant lines using nitrogen back-purge to prevent copper oxide flaking.
- Install new thermal expansion valve (TXV) and bi-flow liquid line filter drier.
- Connect primary PVC condensate drain with cleanout tee, P-trap, and secondary float switch.
4. Electrical, Commissioning & Warranty
Power connection, operational checks, and homeowner documentation.
- Install new outdoor weather-resistant disconnect box and electrical whip.
- Perform nitrogen pressure test at 350 PSI, vacuum to under 500 microns, and weigh in factory trim charge.
- 10-Year parts limited warranty upon timely manufacturer registration.
- 1-Year contractor labor warranty.
Standard Line-Item Material Allowances
Clear material specifications that protect against ambiguous scope arguments.
| Component / Assembly | Standard Specification | Unit / Allowance |
|---|---|---|
| Central AC Condenser | Single or Two-Stage 15.2 SEER2 Unit | 1 Unit |
| Cased Evaporator Coil | All-aluminum tube and fin matching AHRI certificate | 1 Unit |
| Electrical Whip & Disconnect | 30A or 60A outdoor fusible/non-fusible disconnect | 1 Assembly |
| Filter Drier & TXV Kit | Liquid line filter drier + internal TXV | 1 Set |
| Condensate Safety Float Switch | Inline primary or secondary pan float switch | 1 Unit |
Scope-Gap Protections: 3 Clauses to Include
These contractual gotchas account for 85% of change-order arguments on ac condenser replacement proposal templates.
The Risk: Clogged drains can overflow onto ceilings or floors during post-install testing.
Protective Clause: Proposal includes standard installation of an electronic float shutoff switch to cut power if water backs up.
The Risk: Changing only the outdoor condenser while leaving an obsolete coil degrades efficiency and voids manufacturer warranties.
Protective Clause: Specifies that condenser and coil are bid as an AHRI-matched system to ensure certified SEER2 ratings.
The Risk: Newer energy-efficient equipment often requires smaller maximum overcurrent protection (MOCP) breakers.
Protective Clause: Includes direct statement verifying breaker replacement at the main panel to match unit nameplate rating.
Governing Building Codes & Standards
Frequently Asked Questions
Why is a matched indoor coil required for an AC replacement?▾
Connecting a new condenser to an old coil reduces cooling capacity by up to 30%, risks oil return failure to the compressor, and voids the manufacturer 10-year warranty.
Does this template include permit and inspection fees?▾
Permit fees can be toggled as included or excluded based on local municipal jurisdiction charges.
Related HVAC Proposal Scopes
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