MDHX – VRF Multi Split Inverter Ducted Indoor – Installation Manual (Legacy – MDHX018D1C02‑A)


Important – Legacy Installation Manual


This installation manual MDHX018D1C02‑A is retained for legacy MDHX ducted indoor units that were supplied under earlier model naming (including D1A, D1B and D1L variants).


This document has been superseded by “MDHX‑02‑C – MDHX Series Ducted Inverter Unit Installation Manual” for all current and supported MDHX VRF ducted indoor models (DBA / DBC / D1C series).


➤ For new installations, product training, and current support cases, refer to MDHX‑02‑C.


Use this document only for servicing or fault‑finding older MDHX ducted indoor units that are already installed.
If the unit was supplied or installed some years ago and does not appear in the current MDHX‑02‑C manual, this is the correct reference.


32-page Pdf attached