Mitsubishi VRF control: CoolMaster 4000M

Control and Monitor Mitsubishi Electric VRF Air Conditioning Systems

Product Description

Mitsubishi VRF adapter for Home Automation systems

Connect Mitsubishi VRF with home automation controllers or any other connected device via the CoolMaster 4000M is a very easy task: CoolMaster 4000M is a control adapter connecting Mitsubishi Variable Refrigerant Flow air conditioning systems with any RS232 or USB featured devices like home PCs, embedded PCs or Home Automation controllers.

HVAC Connection via the CoolMaster 4000D through common RS232 or USB interfaces with the provides homeowners with full control of all Mitsubishi VRF indoor units enabling access to their air conditioner’s various functionalities. Controlled functionalities include diagnostic data.

No need to worry about Mitsubishi internal communication line and gateways including their unique physical layer: when using the CoolMaster 4000d, Home Automation integrators and HVAC installers now, with the CoolMaster 4000M, are provided only with a simple, well documented open ASCII protocol over RS232 or USB for seamless integration with various home automation applications.

Mitsubishi VRF (Mitsubishi Electric, MELCO) connects with Home Automation / BMS systems


CoolMaster Icon - Plug-n-Play

Seamless easy integration with Home Automation systems and PC apps

Interfacing Home Automation controllers with Mitsubishi VRF via the CoolMaster 4000M is a simple and straight forward process requiring only common ASCII commands over RS232 communication line.

CoolMaster Icon - RS232

Same RS232 interface for Mitsubishi VRF systems and others

All CoolMaster models provide the same RS232 interface for all VRV/VRF HVAC systems, including Mitsubishi VRF. So for instance, a home automation application, where a Mitsubishi VRF system is connected via CoolMaster 4000M, will function exactly the same way for Daikin VRV, Sanyo VRF, Toshiba VRF etc, when using CoolMaster models: 1000D, 2000S, 3000T respectively. No special interface adaptation will be required to migrate from one CoolMaster type to another.

CoolMaster Icon - Full Control

Full Control over Indoor Units Operation

On/Off control, Cool, Heat, Fan, Dry mode selection, Set Temperature control, Fan Speed control, Swing control (for wall mounted and cassette indoor units), Filter reset sign, Group operations (All On, All Off).

System Diagnostics

Outdoor units internal parameters: Condensing, Evaporation, Ambient Temperatures, EV Opening, System Power Consumption (current), Inverter Revolutions and others Indoor Units internal parameters: Return air, Gas and Liquid Temperatures, EV Opening. Those features are currently available for Daikin VRV, Mitsubishi VRF and Hitachi VRF air conditioning systems.

Indoor Units Monitoring

Failure Alarms, Set point temperature, Operation status (on/off) Operation mode (cool/heat/fan/dry), Fan speed (high/low), Filter sign, Swing.

Field Upgradable

New firmware can be uploaded via RS232 port. No need to open unit to change it’s functionality.


      • Series

        • CITY MULTI

        Outdoor Unit Types

        VRF Outdoors

        • PUHY
        • PURY
        • PQHY
        • PQRY
        • PUMY

        Split / Multi Split outdoors

        • PUHZ

         Indoor Unit Types

        VRF Indoors

        • PKFY
        • PFFY-PVKM
        • PLFY-P-VCM
        • PEFY-P-VMS1
        • PFFY-P-VLRM
        • PCFY-P-VGM
        • PLFY-P-VLMD
        • PEFY-P-VMM
        • PFFY-P-VLEM
        • PLFY-P-VBM
        • PMFY-P-VBM
        • PEFY-P-VMH
        • PEFY-P-VMA
        • PEFYP100VMA-E
        • PEFY-P-VMA-E
        • PEFY-P63VMA(L)-E
        • PVFY-P

        Split / Multi Split indoors

        • PEAD
        • SEZ-KD

        * if your required models are not listed, please contact us.

SKU: CM4000M Categories: , ,
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