Mitsubishi Electric AC & FCU Plenum Boxes
Made-to-order plenums for Mitsubishi Electric units
DuctFix manufactures galvanised-steel supply and return air plenum boxes for Mitsubishi Electric ducted fan coil units. Choose a supported PEFY, PEAD, SEZ, SFZ or PFFY model, then configure spigot positions, lining and other options with a live 3D preview and online price.
- Made in the UK from galvanised sheet steel
- Supply and return-air configurations
- Multiple spigot sizes and positions
- Optional 6mm Class O internal lining
- Bespoke sizes available when a model is not listed
Mitsubishi Electric plenum models
Find your indoor-unit model below, then use the configurator to price a matching supply or return-air plenum. If your exact reference is not shown, send us the unit details and we can manufacture a bespoke box.
PEFY ducted units
- PEFY P15-32 VMS1-E
- PEFY P40-50 VMS1-E
- PEFY P63-80 VMS1-E
- PEFY M20-32 VMA-A1
- PEFY M40 VMA-A1
- PEFY M50-63 VMA-A1
- PEFY M80-125 VMA-A1
- PEFY WP10-50 VMS1
- PEFY WP20-80 VMA
- PEFY-P80-140VMHS-E
- PEFY-P200-250 VMHS-E
PEAD, SEZ and SFZ units
- PEAD M35-50JA
- PEAD M60-71JA
- PEAD M100-125JA
- PEAD M140JA
- SEZ & SFZ-M25DA
- SEZ & SFZ-M35-50DA
- SEZ & SFZ-M60-71DA
- SEZ-KD09NA
- SEZ-KD12-15NA
- SEZ-KD18NA
PFFY and PEA units
- PFFY P20-32 VCM-E
- PFFY P40-50 VCM-E
- PFFY P63 VCM-E
- PFFY WP20-63 VLRMM
- PFFY-WL20-50VCM-A
- PEA-RP200-250GAQ
- PEA-M200-250LA
Mitsubishi Electric plenum FAQs
Can DuctFix make a plenum for a model not listed?
Yes. Send us the full indoor-unit reference and the dimensions or drawing you have. We can quote a bespoke galvanised-steel plenum.
Can I order both supply and return-air plenums?
Yes. The configurator supports supply and return-air arrangements, with selectable spigot sizes and positions.
Can the plenum be internally lined?
Optional 6mm Class O acoustic lining is available for suitable configurations.
What should I check before ordering?
Confirm the complete Mitsubishi Electric model reference, unit opening dimensions, plenum depth and connection arrangement. Model guidance is provided to help selection, but dimensions must be checked against the unit or project information before manufacture.
How to order your Mitsubishi Electric plenum
- Choose the indoor-unit model. Match the full reference on the unit or technical schedule.
- Configure the connection. Select supply or return air, spigot size and position, and optional 6mm Class O lining.
- Check the dimensions. Review the drawing and live 3D preview before adding the plenum to your basket.
Need something different? DuctFix manufactures ductwork, so we can help with non-standard sizes and connection arrangements. Ask our team for help.