How, what, why?
Multi Room Heat Pump Systems
Can one heat pump outside, heat multiple rooms inside?
The answer is yes!
Mitsubishi Electric Multi Room Heat Pump Systems allow you to choose the perfect indoor heat pump for each room without the need to install multiple outdoor units. Whether it’s an unobtrusive ducted unit in the living room, a black Designer Series High Wall in the master bedroom or a Deluxe FH High Wall with advanced filtration in the kids’ room, the choice is truly yours.Only one outdoor unit
Choose from High Walls, Floor Consoles, Ducted or Cassettes
Energy efficient
From 2 to 8 room solutions
Whisper quiet
Optional Wi-Fi Control
Optional Zone Control
Why choose a multi room heat pump system?
The World Health Organisation recommends a minimum indoor temperature of 18-20°C for living areas and 16°C overnight for bedrooms. A multi room system not only gives you the freedom to select the indoor model best suited to each and every room in your home, it also enhances exterior aesthetics by reducing the number of outdoor units required; for total home comfort inside, and a sleek uncluttered exterior outside. Plus, you get the benefit of the superior efficiency and energy savings of Mitsubishi Electric heat pump technology.What indoor units can I connect to my multi room heat pump system?
The below indoor units are compatible with a multi room outdoor unit.
High Wall Mounted
Floor Console
Ceiling Mounted
Ducted / Concealed
How many indoor units can I connect to my multi room heat pump system?
All Mitsubishi Electric indoor units have a class rating; this is the numerical component of the model name, for example the MSZ-GE25VAD2 has a class rating of 25.Every multi room outdoor unit has 3 parameters that determine the number and size of indoor units that can be connected to it;
- The number of indoor units that can be connected (ranging from 2-8 indoor units dependent on unit).
- The maximum individual indoor class rating that can be connected (ranging from 22-100).
- The maximum total class rating of all units that can be connected (ranging from 75 to 201 dependent on unit).
| Multi Room Outdoor Unit |
Connectable Indoor Unit Parameters |
|---|---|
MXZ-2D52VA6.1kW Heating
|
Connect 2 indoorsEach indoor can be up to a Class 50Maximum Class total of 75 for all indoor units Example:The MXZ-2D52VA could have the following connected:
As each indoor unit has a maximum class no greater than 50, and the total maximum class combination of all indoors is no greater than 75 (in this case totalling 75). 
|
MXZ-3E54VAD7.0kW Heating
|
Connect 2-3 indoorsEach indoor can be up to a Class 50Maximum Class total of 100 for all indoor units Example:The MXZ-3E54VAD could have the following connected:
As each indoor unit has a maximum class no greater than 50, and the total maximum class combination of all indoors is no greater than 100 (in this case totalling 92). 
|
|
MXZ-4E71VAD8.0kW Heating
|
Connect 2-4 indoorsEach indoor can be up to a Class 60Maximum Class total of 125 for all indoor units Example:The MXZ-4E71VAD could have the following connected:
As each indoor unit has a maximum class no greater than 60, and the total maximum class combination of all indoors is no greater than 125 (in this case totalling 120). 
|
MXZ-4E80VAD8.8kW Heating
|
Connect 2-4 indoorsEach indoor can be up to a Class 71Maximum Class total of 145 for all indoor units This outdoor unit can only use 1x PEAD-RP71 Example:The MXZ-4E80VAD could have the following connected:
As each indoor unit has a maximum class no greater than 71, and the total maximum class combination of all indoors is no greater than 145 (in this case totalling 143). 
|
|
MXZ-5E100VAD10.0kW Heating
|
Connect 2-5 indoorsEach indoor can be up to a Class 71Maximum Class total of 171 for all indoor units This outdoor unit can only use 1x PEAD-RP71 Example:The MXZ-5E100VAD could have the following connected:
As each indoor unit has a maximum class no greater than 71, and the total maximum class combination of all indoors is no greater than 171 (in this case totalling 171). 
|
MXZ-6E120VAD13.2kW Heating
|
Connect 2-6 indoorsEach indoor can be up to Class 80Maximum Class total of 180 for all indoor units This outdoor unit can only use 1x PEAD-RP71 Example:The MXZ-6E120VAD could have the following connected:
As each indoor unit has a maximum class no greater than 80, and the total maximum class combination of all indoors is no greater than 180 (in this case totalling 180). 
|
PUMY-SP112VKMD-A14.0kW Heating
|
Connect 2-8 indoorsEach indoor can be up to Class 100Maximum Class total of 162 for all indoor units Example:The PUMY-SP112VKMD-A could have the following connected via the PAC-MK33BC 3-way Branch Box:
As each indoor unit has a maximum class no greater than 100, and the total maximum class combination of all indoors is no greater than 162 (in this case totalling 160). 
|
|
PUMY-SP125VKMD-A16.0kW Heating
|
Connect 2-8 indoorsEach indoor can be up to Class 100Maximum Class total of 182 for all indoor units Example:The PUMY-SP125VKMD-A could have the following connected via the PAC-MK53BC 5-way Branch Box:
As each indoor unit has a maximum class no greater than 100, and the total maximum class combination of all indoors is no greater than 182 (in this case totalling 179). 
|
|
PUMY-SP140VKMD-A16.5kW Heating
|
Connect 2-8 indoorsEach indoor can be up to Class 100Maximum Class total of 202 for all indoor units Example:The PUMY-SP140VKMD-A could have the following connected via the PAC-MK53BC 5-way Branch Box:
As each indoor unit has a maximum class no greater than 100, and the total maximum class combination of all indoors is no greater than 202 (in this case totalling 200). 
|
Will I still get the fully rated capacity when using a multi room system?
Multi room outdoor units have different maximum capacities of heating kW and cooling kW. Depending on the indoor units chosen, the actual capacity of heating/cooling produced by the indoor unit may vary from the actual rated capacity. This is because the power of the outdoor unit is distributed across all the connected indoor units that are running.
For example, if you have an GE42 and a GE50 indoor unit on an MXZ-3E54VAD outdoor, when the two indoor units operate simultaneously in heating mode, the GE42 will produce up to 3.1kW, and the GE50 will only produce 3.7kW of its rated heating capacity. When only one of the indoor units is running, for example the GE50, you will receive up to an impressive 6.8kW of rated heating capacity from the GE50 alone.
Choosing the right heat pump for your home
We recommend you book a free in-home consultation with one of our qualified installers. Choosing the right heat pump system requires an assessment of the areas to be heated, to ensure you get the best, most efficient system for your home. One of our qualified installers will carry out accurate sizing calculations, and expertly assess other factors involved in heat loss and gain.
Get a recommendation on what heat pump you need for a room. For large residential homes and commercial buildings please read about City Multi VRF solutions. Extremely quiet, discreet and provides temperature control in every room – the ultimate in usability. With heating solutions ranging from 25 to 156.5kW. Go to heat pump sizing toolOur range of multi room outdoor units
Two ranges of Mitsubishi Electric multi series outdoor units are available: The classic multi range, developed for small to medium-sized homes, and the power multi range, designed specifically for homes or small offices where a wider range of commercial-type indoor units are required. The multi series range from Mitsubishi Electric provide a quiet, highly efficient and flexible air conditioning system for all your heating and cooling needs.
What is multi room
