Marine Air Conditioning Retrofit Survey Checklist

A retrofit succeeds when the boat has room for the whole system, not just the air-conditioning box. Before asking for a firm quote, collect measurements and photographs that show access, duct routes, plumbing and the intended electrical connection. This guide is an owner’s preparation checklist. The installer still needs to inspect the vessel and confirm the design.

Measuring Marine Air Conditioner Delivery and Locker Access

Measure the opening, the space inside and the path from the companionway. Include hinges, removable panels and nearby equipment. The unit dimensions alone do not tell you whether it can be installed or later removed. Ask the installer to mark the service envelope for filters, connections and fasteners. Avoid a layout that needs furniture dismantled for every routine inspection.

Surveying Seawater, Ducting and Condensate Routes

Sketch the seawater path, the supply and return-air paths, and the condensate route separately. A short route for one may conflict with another. Photograph existing hull fittings without opening or altering them. Note which lockers are used for storage: bags and bedding can obstruct a grille that looked clear during the survey. Ask where water would go if a hose or drain connection failed.

Agreeing Marine Air Conditioning Retrofit Scope

Identify any structural joinery, new hull penetration, electrical circuit, control wiring or lift-out requirement. Put these in the quote rather than leaving them as assumptions. Ask who coordinates the trades and who checks the complete system at handover. A cheaper equipment price is not a complete comparison if essential installation work remains outside the scope.

Marine Air Conditioning Retrofit Survey Checklist

• Photograph openings with a tape measure visible.
• Record existing equipment model numbers and service access.
• Request a marked-up layout before authorising fabrication.

Editorial basis: an original owner-planning checklist, not a product test or a vessel inspection. For model-specific procedures, use the manufacturer’s document library and the official resources. See our editorial policy.

Retrofit Measurements and Photo Worksheet

Write down the unit route, not just the locker volume. Photograph each measurement with the tape readable. Leave final equipment clearances and hull or electrical changes for the installer to specify.

Scope inclusions to confirm

• Equipment and controls: exact models and compatible accessories.
• Boat work: joinery, access panels, hull work and lift-out arrangements.
• Commissioning: operating demonstration, documentation and unfinished items.

Example planning issue: a unit can fit inside a locker but fail to pass through the opening. Record both dimensions before comparing quotes. This is an illustrative scenario, not a report of a completed installation.