A Guide to Multi-Zone Ductless Installation
Here are some quick tips to help you pick and install a multi-zone ductless heating and cooling system for your home.
Pick Your Unit
Be sure you know exactly what system you want. A multi-zone ductless heating and cooling system provides multiple unit heating/cooling, so you can get custom temperatures for different rooms. With these systems, you can connect up to nine different units.
A single zone mini split heat pump offers superb performance for a single space and are ideal for single-room additions for those areas that are difficult to cool.
If you’re unsure about which would be best for your needs, our HVAC team is always happy to answer all of your questions. Now that you have your system picked out, here are some installation tips. Please remember, we always recommend getting your multi-zone or single zone ductless system professionally installed.
Things to Remember When Installing A Multi-Zone Ductless Heating & Cooling System
- Fan Coils
Be sure you know the minimum number of fan coils you will need in order for your system to function at its optimal capacity. Generally, most brands will need a minimum of two coils for a multi-zone ductless system to operate. Having the minimum is a must, regardless of future system expansion plans.
For fan coils, always check that you are following the required clearance and that there are no obstructions since improper are flow due to obstructions can cause potential system issues.
You must know the limits of your system’s piping length (both maximum and minimum lengths). You can use the piping size of the fan coil to determine the line sizes. Included in your multi-zone condensing unit (CU) will be flare adapters that can be applied when adjusting the line sizes of the fan coil.
When you begin drilling your three-inch holes, be sure that your holes are drilled in a downward position. The reason for this is because when drilled straight, it can cause improper drainage. Be sure there is no twisting with your hose either, as this can also cause drainage issues with your system.
Multi-zone ductless system wiring can be confusing due to multiple wires and pipes all leading back to a single outside unit. Always carefully label each one, to avoid pipes and wires being mixed. Before starting your system, it is vital to trace back your work and ensure everything is connected to the proper power wire.
Get Single & Multi-Zone Heating & Cooling Systems