Heat pumps · MT

CTAOptiheat Inverta Economy OH I 9e (Wasser / Wasser)

The CTA Optiheat Inverta Economy OH I 9e (Wasser / Wasser) is a heat pump with SCOP (35 °C) 7.2 and refrigerant R410A.1

Last updated: Technical specifications ⇄ Compare this model

Key figures

SCOP (35 °C)
7.21

Seasonal efficiency: how much heat you get per kWh of electricity across a heating season.

Refrigerant
R410A1
Official source
Type (source)
Water-to-water1
Official source
Rated output 35 °C
20.7kW1
Official source
Rated output 55 °C
19kW1
Official source

Technical specifications

General
Type (source) Water-to-water1
Compressors 11
Capacity control drehzahlregelung1
Performance
Rated output 35 °C 20.7 kW1
Rated output 55 °C 19 kW1
Efficiency
SCOP (35 °C) 7.21
SCOP (55 °C) 5.081
Seasonal efficiency ηs 35 °C 281 %1
Seasonal efficiency ηs 55 °C 195 %1
Noise
Indoor unit sound power 48 dB(A)1
Refrigerant
Refrigerant R410A1
Refrigerant charge 2.7 kg1
Electrical
Max. power input 9.4 kW1
Connectivity & smart
SG Ready Yes1

Variants

This model is registered in 2 combinations (for example with a different indoor unit or cylinder) with exactly the same performance. All figures on this page apply to each of these types. The part of the type number that differs is in bold; small differences (e.g. cylinder volume or anode) are listed after it:

  • Optiheat Inverta Economy OH I 9e (Wasser / Wasser)
  • Optiheat Inverta Economy OH I 9ec (Wasser / Wasser)

Manufacturer documentation

External links to CTA's official website. The manufacturer may change or move documents; where they differ, the manufacturer's latest version applies.

Frequently asked questions

What is the SCOP (35 °C) of the CTA Optiheat Inverta Economy OH I 9e (Wasser / Wasser)?

The SCOP (35 °C) of the CTA Optiheat Inverta Economy OH I 9e (Wasser / Wasser) is 7.2.1

Which refrigerant does the CTA Optiheat Inverta Economy OH I 9e (Wasser / Wasser) use?

The refrigerant of the CTA Optiheat Inverta Economy OH I 9e (Wasser / Wasser) is R410A.1

Sources

  1. List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 29 Sept 2026