Buying a HEAP-1? Ask for the Service Schedule Before the Quote

Before buying a HEAP-1 compressor for a mini scuba tank, ask for the service schedule for the exact unit offered. The product listing directs the owner to its manual for filter replacement and routine care. A purchase quote should help you find the correct instructions, identify consumables and plan who will maintain the equipment.

Request the document and part identifiers

The TRIMIX HEAP-1 listing identifies the model and refers to inspecting and replacing the filter. Ask the seller for the applicable manual edition and the exact filter reference for the offered configuration. Confirm what comes in the box and what you will need to obtain later. Ask whether the schedule uses elapsed time, accumulated operating time, conditions observed during service or a combination, and how the appropriate value should be recorded for that unit.

If you expect only seasonal use, ask the service provider how the manufacturer’s schedule applies while the compressor is idle. For a secondhand unit, request its existing service and usage records. If the previous owner cannot substantiate the history, have a qualified provider assess the unit and tell you what evidence is needed before relying on it.

Make the service record usable

Divers Alert Network’s fill-station guidance recommends keeping a compressor service record with the date, work performed, replaced parts, technician and next planned service. Record the model and serial identifier alongside those details so a technician can tell which machine the entry describes. Keep the fill log, filter record and air-quality reports linked to the relevant equipment without confusing one record for another.

• Write down the exact manual revision and how the next service trigger is determined.
• Record the consumable identifier and ask how to source it for the offered unit.
• Agree who keeps the log and who can review the proposed filling arrangement and breathing-air evidence.

Use the HEAP-1 inquiry to request those items with the quote. Describe where you plan to use it and the country where you need service. Obtain the written schedule and a qualified assessment of the complete filling arrangement before treating it as a suitable source of breathing air.

Evergreen buyer guide verified November 13, 2026. Sources: TRIMIX HEAP-1 Electric Compressor product listing (2026-10-30); Divers Alert Network compressor room and fill station safety (undated).