CTC EcoZenith i255 L Indoor module

Flexible indoor module with user-friendly display, built-in heat pump control and internet connection.

User-friendly display 

The CTC EcoZenith i255 has a touch display with a very user-friendly interface where you can easily reach all functions just like in your smartphone. You can also easily mirror the display in your tablet, mobile or computer. But the most important thing is that it has text in a selectable language and simple symbols that make it easy to adjust heat, hot water etc. and retrieve a lot of information about the operation. 

Quiet and efficient 

The indoor module must never become a weak card - then it doesn't matter how efficient the heat pump is. For the CTC EcoZenith i255, we have chosen the same technology as in the CTC EcoHeat geothermal heat pump. The CTC EcoZenith i255 is built with a water buffer that gives the compressor good working conditions regardless of the heating system. In this way, the risk of clicking and other noises in your radiator system is minimized. CTC 

EcoZenith i255 has many advantages: How about intelligent heat pump control? Color touchscreen? Solar connection? Just to take a few examples. 

Plenty of hot water 

The indoor module's most important function is to produce a lot of hot water as sparingly and as quickly as possible. The CTC EcoZenith i255 will not disappoint you and your family. The CTC EcoZenith i255 is always installed with one of the CTC EcoAir or CTC EcoPart heat pumps and supplies up to 65 °C hot water. The tank holds a whopping 223 litres. 

Two versions 

Choose the height that fits, 1.65 m or 1.90 m. Cover (as picture on the front) is standard, but available in more heights for a neater installation. 

EnergyFlex 

You can supplement now or later with other energy sources. Two connections are available ready to connect, e.g. solar heating, water jacketed stove or why not a pool? As standard, the product can control two different heating systems. You can also get cool in the summer if you supplement geothermal heating with passive cooling that utilizes the borehole's cool temperature for pleasant coolness. 

Built-in internet connection 

CTC EcoZenith i255 has internet connection as standard so you can easily control your heat pump remotely. To fit into the smart home, the product is prepared for connection to Alexa, Google Home, etc. It is also Smartgrid-prepared, which means that it is prepared for the electricity grid of the future. 

Made in Sweden 

All CTC heat pumps and control units are designed, developed and manufactured in our factory in Ljungby. This gives us total control of all steps in the manufacturing process. 

CTC security 

It always includes a three-year factory warranty, also includes a 12-year hot water warranty against leaks in the hot water exchanger and up to 18 years of security that applies to the entire heat pump system. Read more at: ctc.se/kundservice

When purchasing and installing CTC's products in Sweden, you are covered by their  warranty . The guarantee only applies in Sweden. When purchasing and installing CTC's products in Sweden, you will be covered by their  warranty . The warranty applies only in Sweden.

Scope of delivery 

Heat pump with manual, factory-fitted cover, expansion vessel and supply cable. 

Secondary packaging 

Charge pump for connection of heat pump (factory installed on i255L), radiator pump, valve combination, current sensor, safety valve, room, outside, front and return line sensors. 

Compatible heat pumps: 

Air/water: CTC EcoAir 406-410, 510M-622M. Mountain/lake/soil: CTC EcoPart 406-412.

Technical information

Model/version - Floor standing

Power - 15 kW

Frequency - 50 Hz

3-phase design - Yes

Number of heating elements - 2

Boiler water volume - 223 l

With connection to expansion container - Yes

With expansion container - Yes

Water volume expansion container - 14 l

Max pressure heat - 2.5 bar

Supply/return connection - Various

With preparation of hot domestic water - Yes

With hot domestic water priority - Yes

Max hot water pressure - 10 bars

Tap water connection - Various

Water volume hot domestic water - 5.7 l

Max control temperature - 110 °C

Modulating - None

With day/night function - Yes

With circulation pump - Yes

With manometers - Yes

With thermometer - Yes

With overfilling protection - Yes

With automatic venting - None

With filling and draining valve - Yes

Height - 1652 mm

Width - 596 mm

Depth - 673 mm

Protection class (IP) - Various

Energy efficiency for water heating (NWH) - 54%

Space heating in energy efficiency class - A++

Energy efficiency class water heating - B