A useful parking AC request for quotation describes the working problem before asking for a price. Suppliers need the vehicle, operating conditions and required cooling period to propose a meaningful configuration. A request for “24V AC, best price” leaves too much open to interpretation.
Describe the vehicle and application
Provide the vehicle make, model, model year and relevant cab configuration when known. Include dimensioned installation information and photographs. State whether the project concerns a sleeper cab, day cab, RV or equipment cabin, and identify any restrictions on roof or body modifications.
Explain the daily work pattern: long overnight rests, short delivery stops, loading queues or occasional leisure use. Note occupancy, door openings and the climate in which the equipment will operate. Distinguish required conditions from preferences.
Define the energy and installation boundary
Identify the available electrical system and any existing auxiliary battery or charging equipment. Ask the supplier to state what additional components are required, subject to qualified installer and vehicle approval. Include the intended period of engine-off operation and other loads sharing the supply.
Give the available mounting envelope, indoor clearance and service-access constraints. Require a proposed installation drawing for the exact configuration. Avoid accepting a general family photograph as a fitment confirmation.
Request comparable evidence
- Current model-specific datasheet and installation manual.
- Cooling and electrical-input information with test conditions.
- Noise information with the measurement basis stated.
- Proposed sample test and agreed acceptance criteria.
- Applicable documents for the destination market and exact supplied model.
- Warranty, spare-parts identification and support arrangements.
Ask the supplier to mark unknown or unvalidated items explicitly. A clear limitation is more useful than a broad claim that the product fits every truck or every climate.
Specify the commercial deliverable
State the sample and expected order quantities, delivery destination, preferred timing and branding or packaging needs. Ask for an itemized quotation showing included accessories, exclusions and the scope of commissioning support. Confirm the configuration and revision covered by the price.
The final RFQ should let several suppliers quote the same outcome. Use the responses to narrow the shortlist, then validate the selected system on a representative vehicle before wider rollout. This gives both buyer and supplier a practical foundation for pricing, acceptance and ongoing support.
Next step
For a Vethy quotation, use the contact options on the Vethy website and include your vehicle, supply voltage, target market, required cooling period and installation constraints.
Sources and method
Original procurement or diagnostic guidance. This is a proposed method, not a report of a product test or a certification standard.