Procurement guides
Compare SEER, SCOP and nominal capacity correctly
High efficiency and high capacity answer different questions. First establish the load the system must cover under the intended conditions. Then compare the efficiency of suitable versions.
Separate nominal capacity from design load
Daikin lists 3.3 kW nominal cooling and 3.5 kW cooling Pdesign for FTXF35F5V1B/RXF35F5V1B. Both can be correct: Pdesign belongs to the seasonal calculation. A 35 model number therefore does not automatically mean 3.5 kW nominal capacity.
Read SEER and SCOP with their climate reference
SEER describes seasonal cooling efficiency, SCOP heating efficiency. Average climate is the reference for the reviewed heating figures. Compare the same climate zone and combination. A class or ratio alone does not give consumption for a building in Germany, the Netherlands, Belgium, France or Spain.
Four checks before comparing
Place the relevant rows of both data sheets side by side and record differences. Take unknown figures into procurement as open questions.
- Complete indoor/outdoor combination including suffix
- Separate nominal capacity, operating conditions and Pdesign
- Compare SCOP using the same climate reference
- Confirm the system combination for individual units
Worked example: The same SEER across two Sensira sizes
Both documented Sensira pairs have a SEER of 6.5. The rated capacity and calculated building load also matter when choosing a unit. Include the full equipment pairing and required capacity in your enquiry.
- FTXF35F5V1B + RXF35F5V1B — 3.3 kW rated cooling capacity, 3.5 kW cooling Pdesign, SCOP 4.2 for average climate.
- FTXF50F5V1B + RXF50F5V1B — 5.0 kW rated cooling capacity, 5.0 kW cooling Pdesign, SCOP 4.1 for average climate.
- FTXF35F5V1B sound in cooling mode: 20 dB(A) sound pressure at Silent and 43 dB(A) at High. Sound power is 54 dB(A). Compare the same measure, unit and operating speed.
Open relevant models directly
Open the product details for suitable models. Complete sets and individual outdoor units are labelled separately. We help you select a compatible combination for extensions.
Daikin · Indoor and outdoor unit set
FTXF35F + RXF35FDaikin · Indoor and outdoor unit set
FTXF50F + RXF50FMitsubishi Heavy Industries · Indoor and outdoor unit set
SRK35ZSX-W + SRC35ZSX-W
Frequently asked questions
- Can SEER directly give annual savings?
- An estimate also needs load profile, operating hours, location and controls. Higher SEER can guide selection, but does not establish a fixed saving for a particular project.
Editorial update:
Manufacturer documentation
- Daikin FTXF-F5V1B – installation manual, pp. 5 and 10–12
- Daikin FTXF-F---RXF-F – technical table (XLS)
- Daikin FTXF-F – technical table (XLS)
- Daikin RXF-F – technical table (XLS)
- Daikin Sensira – features
- Daikin FTXF35F5V1B / RXF35F5V1B – energy label
- Daikin FTXF-F5V1B – installation manual, pp. 5 and 10–12
- Daikin Sensira – features
- Daikin FTXF50F5V1B / RXF50F5V1B – energy label
- MHIAE SRK35ZSX-W / SRC35ZSX-W – technical table
- Daikin FTXF-F / RXF-F
- Daikin FTXF-F
More model comparisons
- Daikin FTXF35F or FTXF50F? Compare Sensira sets
- Daikin Sensira vs Mitsubishi Electric AY
- Daikin Sensira vs Mitsubishi Heavy ZSX-W
Vertiefende Fachartikel auf Deutsch
From selection to enquiry
Turn your selection into a specific enquiry
You do not need to know every detail yet. Describe your requirements; we will discuss outstanding points with you personally.
Discuss your requirementsNo account needed. No obligation. For business customers.
- 01
Equipment or plans
Manufacturer and model numbers, existing system or intended use.
- 02
Quantity, destination and date
Quantity, delivery country, postcode and preferred delivery period; partial call-offs if needed.
- 03
Your outstanding questions
For example compatibility, scope of supply, documents or a suitable alternative.