Swiss Quality Heat Pump Systems - CTA - Klima · company and promote energetically meaning- ... harmony with nature”. ... SCOP in brief The coefficient of performance

Swiss QualityHeat Pump Systems

SwissQuality

2

The Swiss family-owned SME with a commitment to employment in Switzerland is devoting its extensive know-how and reliability to develop-ing renewable energies and energetically meaningful system solutions.

CTA and its heat pumps

We are an owner-operated Swiss family-run

company and promote energetically meaning-

ful system solutions and renewable energies “in

harmony with nature”. Irrespective of whether it

is a standard product or an exclusive system:

It is important for us that our heat pumps help

you experience thermal comfort, and that you

require fewer fossil and finite energy resources.

Our engineers develop products that work more

and more efficiently, and thereby consume less

and less energy. The over 200 employees of the

company apply their expertise to convert cus-

tomer requests, suggestions and requirements

into real-world solutions.

CTA Heat Pumps

CTA has a wide range of products to offer: For

new buildings as well as renovated ones, for sin-

gle-family homes and apartment blocks as well

as large plants, from the standard solution right

up to the exclusive system customised to meet

individual customer demands. We spare no effort

in ensuring that our high-quality heat pump sys-

tems have a long service life – energy-efficient,

economical and environment-friendly.

3

02

04

01 03

Heat from the environment

Expansion valvePressure is reduced

Refrigerant cools

EvaporatorAbsorption of environmental heat; refrigerant vaporises

CondenserEmission of heat energy

Refrigerant liquefies

CompressorRefrigerant is compressed

and heats up

Heat energy

Functioning of a heat pump

A coolant, which is fluid or gaseous, depending

on the temperature and pressure conditions, is

circulated in the heat pump circuit. When the tem-

perature is low, the heat source brings the fluid

coolant in the evaporator to a boil 01 . The arising

coolant steam is compressed in the compressor

02 . During this process, the temperature rises to

a great extent and the heat can now be trans-

ferred in the condenser to the heating water 03 .

The coolant is again transferred to the liquid state.

In the expansion valve, the coolant is expanded

to the lower outlet pressure 04 and the cycle can

start from the beginning.

Manufacturing site in Switzerland Inverter technology

Natural refrigerant

Very low sound emission

Free cooling

Energy efficiency class

Domestic hot water preparation

Flow temperature

Interconnection of several units possible

Remote control via Internet/smartphone

Smart Grid ready (intelligent building system)

24

Legend

70

EHPA quality label

Indicator “optional, on request”+

A++

4

20 40 60 80 100 120 140 160 180 200 300220

⁄⁄⁄⁄⁄⁄

From the single-family home and the apartment

block to industrial buildings: The CTA series

Optiheat and Optipro can heat up buildings of

the most varied types. These heat pumps are

designed, manufactured and constantly devel-

oped further in Switzerland.

Geothermal heat pumps use the environmental heat from the soil (brine) or from the water, and raise the available heat to a higher tem-perature level for heating.

Geothermal heat pumps

80%Geothermal

heat

20%Electricity

100%Heat energy

Water / Water

With this approach, heat can be obtained from

groundwater, sea water, river water or waste

water. An extraction well and a non-return well

must be drilled until below the groundwater level.

Brine / Water

This heat pump system uses the natural heat

in the soil. The geothermal probe consists of a

u-shaped pipe filled with brine, which is lowered

deep into the ground.

Performance overview

Optiheat Inverta

Optiheat All-In-One

Optiheat Economy

Optiheat Duo HT

Optiheat Duo

Optipro

Heating performance in kW

5

20 40 60 80 100 120 140 160 180 200 300220

⁄⁄⁄⁄⁄⁄

The Optiheat heat pump series is Swiss quality to perfection: It is deve-loped, manufactured and tested in Switzerland. The Optipro constitutes the top position of the CTA geothermal pro-duct range: The entire series covers eight units with heat outputs of 130 to 300 kW (W10/W35).

Swiss cutting-edge technology

Electrical board

Filter dryer

Control panel of the heat pump controller

Evaporator

Expansion valves

Condenser

Vibration absorber

Scroll compressor

6

The latest unit in the Optiheat series: Thanks to the inverter technol-ogy, the heat pump heats in line with needs and in an energy-efficient manner. It allows independent heat generation for individual comfort requirements in single-family homes and apartment blocks.

The new Optiheat Inverta TWW

Single-family homes Apartment block

Use in single-family homes

Every house is unique, and so is the heat out-

put required. The Optiheat Inverta TWW can be

designed to suit your exact needs and your envi-

ronment. You thus save not only electricity, but

also investment costs: For the geothermal probe,

drilling is carried out only as deep as required and

the insertion by your installation engineer is car-

ried out easily and quickly thanks to the All-in-One

concept.

Use in apartment blocks

One heat pump system, many comfortable tem-

peratures: The Optiheat Inverta TWW makes

it possible to set your own room temperature

independent of other tenants – and in such a

way that only as many resources as needed are

used. Long wait for hot water is passé, as there

is no heat loss in the distribution due to the cold

network.

Advantages

• Exact design for the necessary heat output

• Geothermal probe drilling only as deep as

required

• Independence

Advantages

• No heat cost billing

• No heat loss in the distribution

• Independence

7

Optiheat Inverta TWW Characteristics

Refrigerant R-410A B / W B0 W / W W10

Heat Pump Type OH I 4esr TWW

Performance range kW 2.0 to 7.5 2.5 to 9.0

SCOP (EN14825) 5.5 7.1

Performance data (EN 14511) B0/W 35/45/55 W10/W 35/45/55

Heat output kW 3.8/3.5/3.2 5.2/4.8/4.4

COP - 4.7/3.5/2.7 6.3/4.6/3.5

Electrical power consumption kW 0.8/1.0/1.2 0.8/1.1/1.3

Cooling output kW 3.0/2.5/2.0 4.4/3.8/3.1

Source temperature min./max. -6 ° to +20 °C +6 ° to +20 °C

Flow temperature min./max. +25 ° to +62 °C

Energy efficiency class W 35 A++

Sound

Sound power level dB(A) 44 (at B0/W55) 44 (at W10/W55)

Sound pressure level in 1 m dB(A) 29 (at B0/W55) 29 (at W10/W55)

Dimensions (D × W × H) mm 700x600x1900

Weight kg 300 300

Connection Heating / Source Inch 1" / 1" 1" / 1"

++

SCOP in brief

The coefficient of performance (COP) indicates the effi-

ciency factor of heat pumps at a specific operating point.

The higher this figure, the higher is the efficiency of the

heat pump. The SCOP (Seasonal Coefficient of Perfor-

mance) assesses this coefficient of performance over the

entire year and shows a comprehensive image about the

energy efficiency.

2962 A++

• Flow temperature max 62 °C

• Very quiet, hardly audible

• All-in-one concept, ready for connection

• Inclusive of domestic hot water preparation

• Space-saving

• Flexible, easy and inexpensive installation by the instal-

lation engineer

• Negligible starting current

• High SCOP (seasonal efficiency value) and thereby ex-

tremely energy-efficient

• Stepless power-controlled

• Integrated components:

– Highly efficient, performance-regulated circulation

pump

– Safety valves, brine-pressure controller, manometer

– Flow and return sensors

– Flow meters

– Domestic hot water 220 litres storage tank with an

output capacity of 310 litres at 40 °C

– Emergency heating element 2.5 kW

8

Optiheat All-in-One Characteristics

• Modern design with stainless steel front

• Highest efficiency (COP-values) resulting in low electri-

city costs

• Electrically and hydraulically completely ready for

connection

• Standard features:

– Heating controller with pre-configured standards

– Scroll compressor in a sound-absorbing casing

– Electronic soft starter (from OH 1-8es)

– Electronic expansion valve

– Flow meters

– Emergency heating element up to 6 kW

• Water-Water version:

– Motor protection for source pump (1.0 – 5.0 A)

– Integrated intermediate circuit for groundwater use

Optiheat All-in-One

With the Optiheat All-in-One, all components are

pre-installed and aligned with each other. This

saves planning, installation and investment costs

and offers a high reliability of operation at maxi-

mum possible convenience and comfort. The

heat pump is exceptionally suitable for heating

domestic hot water. The volume of energy gene-

rated annually can be determined with the integ-

rated flow meter.

700

1175

1260

530

Picture with removed side panel

24

+

Brine / Water

Water / Water

65+ +

A++

9

Refrigerant R-410A Water / Water with Intermediate Circuit

Heat Pump Type OH 1-5es OH 1-6es OH 1-8es OH 1-11es OH 1-14es OH 1-18es

Performance data W7.5 * (EN 14511) W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55

Heat output kW 6.3/5.9/5.6 7.5/7.0/6.5 9.6/9.1/8.6 13.1/12.4/11.6 16.9/16.0/15.1 22.2/20.9/19.7

COP - 5.5/4.1/3.2 5.5/4.1/3.1 5.7/4.2/3.2 5.8/4.3/3.3 5.7/4.3/3.3 5.5/4.1/3.2

Electrical power consumption kW 1.1/1.4/1.8 1.3/1.7/2.1 1.7/2.2/2.7 2.3/2.9/3.5 3.0/3.8/4.6 4.1/5.1/6.2

Cooling output kW 5.1/4.5/3.8 6.0/5.2/4.5 7.9/6.9/5.9 10.9/9.5/8.1 14.0/12.2/10.5 18.1/15.8/13.5

Source temperature min./max. +6 ° to +20 °C



230V einphasig W7.5 * W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55

Heat output kW 6.2/5.9/5.5 7.4/7.0/6.6 9.6/9.0/8.5 12.9/12.2/11.5 17.1/16.2/15.2

COP - 5.4/4.1/3.2 5.4/4.0/3.2 5.6/4.1/3.2 5.7/4.2/3.3 5.8/4.3/3.3

Electrical power consumption kW 1.2/1.5/1.8 1.4/1.7/2.1 1.7/2.2/2.7 2.3/2.9/3.5 3.0/3.8/4.6

Cooling output kW 5.1/4.4/3.8 6.1/5.3/4.5 7.9/6.9/5.9 10.7/9.3/8.0 14.1/12.4/10.6

Sound

Sound power level dB(A) 39 39 43 43 47 50

Sound pressure level in 1 m dB(A) 24 24 28 28 32 35


Weight kg 155 155 170 190 205 215

Connection Heating / Source Inch 1 1/4" / 1 1/4" 1 1/4" / 1 1/4" 1 1/4" / 1 1/4" 1 1/4" / 1 1/4" 1 1/4" / 1 1/4" 1 1/4" / 1 1/4"

Refrigerant R-410A Brine / Water

Heat Pump Type OH 1-5es OH 1-6es OH 1-8es OH 1-11es OH 1-14es OH 1-18es

Performance data B0 (EN 14511) W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55

Heat output kW 5.0/4.8/4.6 5.9/5.6/5.3 7.7/7.4/7.1 10.6/10.1/9.6 13.8/13.0/12.4 17.8/17.0/16.2

COP - 4.5/3.4/2.7 4.5/3.3/2.6 4.5/3.4/2.7 4.7/3.5/2.8 4.7/3.5/2.8 4.5/3.5/2.7


Cooling output kW 3.9/3.4/2.9 4.5/3.9/3.3 6.0/5.2/4.4 8.3/7.2/6.2 10.9/9.3/7.9 13.9/12.1/10.3

Source temperature min./max. -6 ° to +20 °C



230V single-phase B0 W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55

Heat output kW 5.0/4.8/4.5 6./5.7/5.4 7.7/7.4/7.1 10.4/9.9/9.5 13.7/13.2/12.6

COP - 4.4/3.3/2.6 4.4/3.3/2.6 4.5/3.4/2.7 4.5/3.4/2.7 4.7/3.5/2.7

Electrical power consumption kW 1.1/1.4/1.7 1.4/1.7/2.1 1.7/2.2/2.6 2.3/2.9/3.5 3.0/3.8/4.6

Cooling output kW 3.9/3.3/2.8 4.6/4.0/3.3 6.0/5.2/4.2 8.1/7.0/6.0 10.8/9.4/8.0

Sound




Weight kg 140 140 150 170 180 190

Connection Heating / Source Inch 1 1/4" / 1 1/4" 1 1/4" / 1 1/4" 1 1/4" / 1 1/4" 1 1/4" / 1 1/4" 1 1/4" / 1 1/4" 1 1/4" / 1 1/4"

* Standard performance data here with W7.5 on account of temperature loss in the intermediate circuit

10

Optiheat Economy Characteristics

• Vibration-free and silent in operation

• Electrically completely ready for connection

• System solutions such as free cooling, etc. can be ea-

sily added


– Heating controller with pre-configured standards

– Electronic injection valve

– Electronic soft starter

– Low-noise scroll compressor

– Sound and thermal insulation

– All relevant safety and control components

– Outdoor sensor

Optiheat Economy

Compact size permits passage through standard

doors. Flexible use allows complex solutions such

as domestic hot water preparation, free cooling,

cascading of multiple units or integration of swim-

ming pools.

Brine / Water

Water / Water

700

1175

1260

530

24

++ +60 A++

11


Heat Pump Type OH 1-22e OH 1-25e OH 1-29e OH 1-33e

Performance data B0 (EN 14511) W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55

Heat output kW 21.5/19.8/18.6 24.6/22.6/21.1 29.1/26.5/24.6 32.9/30.0/27.7

COP - 4.5/3.4/2.7 4.6/3.4/2.6 4.7/3.4/2.6 4.6/3.4/2.6

Electrical power consumption kW 4.8/5.8/7.0 5.4/6.6/8.0 6.2/7.7/9.3 7.1/8.8/10.5

Cooling output kW 16.7/14.0/11.6 19.2/15.9/13.1 22.9/18.7/15.3 25.8/21.2/17.2




Sound

Sound power level dB(A) 57 59 59 60

Sound pressure level in 1 m dB(A) 42 44 44 45


Weight kg 200 205 215 215

Connection Heating / Source Inch 1 1/2" / 1 1/2" 1 1/2" / 1 1/2" 1 1/2" / 1 1/2" 1 1/2" / 1 1/2"

Refrigerant R-410A Water / Water

Heat Pump Type OH 1-22e OH 1-25e OH 1-29e OH 1-33e

Performance data W10 (EN 14511) W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55

Heat output kW 28.1/26.1/25.2 32.2/29.9/28.9 37.9/35.2/34.1 42.9/39.7/38.4

COP - 5.7/4.4/3.5 5.8/4.4/3.5 5.9/4.5/3.7 5.8/4.4/3.6

Electrical power consumption kW 5.0/5.9/7.2 5.6/6.8/8.2 6.4/7.8/9.3 7.4/9.0/10.7

Cooling output kW 23.1/20.2/18.1 26.6/23.1/20.8 31.5/27.3/24.8 35.5/30.7/27.7




Sound

Sound power level dB(A) 57 59 59 60

Sound pressure level in 1 m dB(A) 42 44 44 45


Weight kg 200 205 215 215

Connection Heating / Source Inch 1 1/2" / 1 1/2" 1 1/2" / 1 1/2" 1 1/2" / 1 1/2" 1 1/2" / 1 1/2"

12

Optiheat Duo HT• Flow temperature up to +65 °C


• Extremely efficient resulting in low electricity costs

• Heat pump with 2 separate cooling cycles

• Very quiet

• Refrigerant R-410A


– Integrated heat pump controller with operating unit



– Two low-noise scroll compressors


– Only relevant safety and control components

• Electrically ready for connection

Optiheat Duo HT

This new high temperature heat pump is extre-

mely silent in operation and compactly designed

to pass through all kinds of doors. It has two

separate cooling cycles which ensures extremely

high operating safety. The flow temperature of up

to 65 °C can be optimally used for domestic hot

water preparation. The unit is operated from the

front. All electrical and hydraulic connections are

on the back.

Brine / Water

Water / Water

Picture with removed front panel.

760

1232

1180

Characteristics

++ +65 35A++

13


Heat Pump Type OH 22e Duo HT OH 28e Duo HT OH 34e Duo HT

Performance data B0 (EN 14511) W 35/45/55 W 35/45/55 W 35/45/55

Heat output kW 20.8/20/19.6 27.1/25.8/25.1 35/33.7/32.8

COP - 4.7/3.6/2.9 4.7/3.6/2.9 4.5/3.5/2.9

Electrical power consumption kW 4.5/5.6/6.7 5.7/7.2/8.6 7.8/9.6/11.3

Cooling output kW 16.3/14.4/12.9 21.4/18.6/16.5 27.3/24.1/21.5




Sound

Sound power level dB(A) 50 54 57

Sound pressure level in 1 m dB(A) 35 39 42


Weight kg 340 350 370

Connection Heating / Source Inch 1 1/2'' / 1 1/2'' 1 1/2'' / 1 1/2'' 1 1/2'' / 1 1/2''


Heat Pump Type OH 22e Duo HT OH 28e Duo HT OH 34e Duo HT

Performance data W10 (EN 14511) W 35/45/55 W 35/45/55 W 35/45/55

Heat output kW 27.5/26.4/25.4 35.8/34.1/33 46.5/44.8/43.3

COP - 6.2/4.6/3.7 6.1/4.6/3.7 5.9/4.4/3.6

Electrical power consumption kW 4.5/5.7/6.8 5.8/7.4/8.9 7.9.3/10.1/12

Cooling output kW 23/20.7/18.6 30/26.7/24.1 38.6/34.7/31.3




Sound

Sound power level dB(A) 50 54 57



Weight kg 340 350 370

Connection Heating / Source Inch 1 1/2'' / 1 1/2'' 1 1/2'' / 1 1/2'' 1 1/2'' / 1 1/2''

14

Optiheat Duo

760

1232

1180


• Extremely efficient and thereby low electricity costs

• Single-cycle heat pump with 2 compressors


– Integrated heat pump controller with new

operating unit



– Two low-noise scroll compressors




Optiheat Duo

With its modern design with stainless steel front,

this heat pump especially designed for use in

apartment blocks and bigger buildings is capti-

vating. System integration such as free cooling,

interconnection of several devices or integration

with other energy sources is easily possible. The

unit is operated from the front. All electrical and

hydraulic connections are on the back.

Brine / Water

Water / Water

Characteristics

++ +60 53A++

15


Heat Pump Type OH 1-44e OH 1-50e OH 1-58e OH 1-65e OH 1-72e OH 1-85e

Performance data W10 (EN 14511) W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55

Heat output kW 58/55/53 67/63/61 77/72/69 86/81/77 97/91/87 113/107/102

COP - 6.0/4.7/3.8 6.1/4.7/3.8 6.2/4.7/3.7 6.0/4.6/3.7 5.9/4.6/3.7 5.8/4.5/3.7


Cooling output kW 49/43/38 56/49/44 65/57/50 72/63/56 80/71/63 94/83/74



Continuous operation +58 °C


Sound




Weight kg 415 415 445 445 475 475

Connection Heating / Source Inch 2 1/2'' / 2 1/2'' 2 1/2'' / 2 1/2'' 2 1/2'' / 2 1/2'' 2 1/2'' / 2 1/2'' 2 1/2'' / 2 1/2'' 2 1/2'' / 2 1/2''


Heat Pump Type OH 1-44e OH 1-50e OH 1-58e OH 1-65e OH 1-72e OH 1-85e

Performance data B0 (EN 14511) W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55

Heat output kW 44/42/39 50/48/45 58/55/52 64/62/57 72/70/65 85/82/77

COP - 4.7/3.6/2.9 4.7/3.6/2.8 4.8/3.6/2.8 4.7/3.6/2.8 4.6/3.6/2.9 4.6/3.6/2.9


Cooling output kW 34/30/26 40/34/30 46/39/34 51/44/38 57/50/43 67/58/51



Continuous operation +55 °C


Sound




Weight kg 415 415 445 445 475 475

Connection Heating / Source Inch 2 1/2'' / 2 1/2'' 2 1/2'' / 2 1/2'' 2 1/2'' / 2 1/2'' 2 1/2'' / 2 1/2'' 2 1/2'' / 2 1/2'' 2 1/2'' / 2 1/2''

16

Optipro• Two separate cooling cycles ensuring high operation

safety

• Compact design, minimal space requirement, even

with multiple units

• Service-friendly, can be operated from the front

• Attractive stainless steel design


– Freely programmable PLC control

– 2 scroll compressors (dual-circuit)

– Soft starter


– Flow and return sensors at both source and

heating side

Optipro

The Optipro heat pump is used in large buildings

and captivates with its technical performance and

compact design. The unit easily fits through a nor-

mal door of 80 cm in width and 200 cm in height

so that it does not require additional expensive

support. The Optipro pump also consumes less

space when interconnected with other pumps

and is extremely service-friendly: The unit is ope-

rated from the front, the connections are at the

back and the electrical supply lines are guided

from above into the casing. Brine / Water

Water / Water

Optipro

1980

8601260

OPTIP

RO

Characteristics

+ +60 60

2260

5380A++

17


Heat Pump Type OP 100ed OP 110ed OP 130ed OP 140ed OP 160ed OP 180ed OP 210ed OP 230ed

Performance data B0 (EN 14511) W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55

Heat output kW 100/96/91 111/107/102 127/121/116 140/135/130 161/155/149 180/174/167 206/199/190 230/222/213

COP - 4.7/3.6/2.9 4.6/3.5/2.9 4.6/3.6/2.9 4.6/3.5/2.9 4.6/3.6/2.9 4.6/3.5/2.9 4.7/3.6/2.9 4.7/3.6/2.9

Electrical power consumption kW 21/27/32 24/30/36 27/34/40 30/38/45 34/43/52 38/49/58 43/55/65 48/61/73

Cooling output kW 79/69/60 88/77/66 100/87/76 110/97/84 127/112/97 142/125/109 163/144/125 182/160/140


Flow temperature at > B3 min./max. +25 ° to +60 °C

Flow temperature at B-5 min./max. +25 ° to +56 °C +25 ° to +50 °C +25 ° to +56 °C


Sound

Sound power level dB(A) ca. 75 ca. 75 ca. 77 ca. 77 ca. 79 ca. 79 ca. 81 ca. 81

Sound pressure level in 1 m dB(A) ca. 60 ca. 60 ca. 62 ca. 62 ca. 64 ca. 64 ca. 66 ca. 66


Weight kg 820 895 960 985 1115 1135 1220 1230

Connection Heating / Source Inch 3'' / 4'' 3'' / 4'' 3'' / 4'' 3'' / 4'' 3'' / 4'' 3'' / 4'' 3'' / 4'' 3'' / 4''


Heat Pump Type OP 100ed OP 110ed OP 130ed OP 140ed OP 160ed OP 180ed OP 210ed OP 230ed

Performance data W10 (EN 14511) W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55 W 35/45/55

Heat output kW 133/126/119 148/141/133 168/160/150 185/177/167 214/204/192 240/228/216 274/261/246 304/291/275

COP - 6.0/4.6/3.7 5.9/4.5/3.6 5.9/4.5/3.6 5.9/4.5/3.6 6.0/4.5/3.6 5.9/4.5/3.6 5.9/4.5/3.6 5.8/4.4/3.6

Electrical power consumption kW 21.8/28/33 24.6/31/37 27.7/35/41 31/39/47 35/45/53 40/51/60 45/58/68 51/65/76

Cooling output kW 111/99/86 124/110/96 140/125/109 154/137/121 179/159/139 200/177/155 229/203/178 253/225/198


Flow temperature at > B3 min./max. +25 ° to +63 °C


Sound

Sound power level dB(A) ca. 75 ca. 75 ca. 77 ca. 77 ca. 79 ca. 79 ca. 81 ca. 81

Sound pressure level in 1 m dB(A) ca. 60 ca. 60 ca. 62 ca. 62 ca. 64 ca. 64 ca. 66 ca. 66


Weight kg 820 895 960 985 1115 1135 1220 1230

Connection Heating / Source Inch 3'' / 4'' 3'' / 4'' 3'' / 4'' 3'' / 4'' 3'' / 4'' 3'' / 4'' 3'' / 4'' 3'' / 4''

18

4 6 8 10 12 14 16 18 20 22 24 3430 32

⁄⁄⁄⁄⁄⁄

⁄⁄⁄

Examples of installations

The local teamwork is based on a stable relationship of trust between the customer, the installation engineer and the supplier. CTA is aware of its responsibility as the supplier and is active in all required areas.

Optiheat All-in-One in terraced houses

Two interconnected Water / Water Optipro

The Optiheat Inverta TWW offers domestic hot water preparation and heating in one

The Aeroheat CS 1-14a unit nestles in its surroundings

An Optiheat Duo unit heats two apartment blocks

Renovated building with Aeroheat CN 9a

19

4 6 8 10 12 14 16 18 20 22 24 3430 32

⁄⁄⁄⁄⁄⁄

⁄⁄⁄

Air-Water heat pumps use the outside air as a natural source of energy and bring it to a higher temperature level for heating.

Air-Water heat pumps

Our heat pump series Aeroheat has a stainless

steel casing for outdoor as well as indoor instal-

lations, reflects the surrounding colours and fits in

well in the surroundings. The intake and exhaust of

ambient air is extremely silent thanks to the special

geometry and noise-reducing materials.75%

Ambient air25%

Electricity100%

Heat energy

Indoor

All units are installed indoors. Two air duct con-

nections are required for the intake and exhaust

of the ambient air.

Outdoor

The unit installed outdoors is connected to a small

control unit inside the building via a line duct. That

helps in preventing cramped spaces inside buil-

dings.

746

846

Raumbreite ≥ 3865

820 1460 820

< 6

50Oberkante

Fertig-fussboden

operating sideoperating side

746

846

Ansicht (Bedienseite)

Kondensat-Ablauf

820

820

R

aum

höhe

≥ 2

100

Example of heat pump installed indoors

Corner installation

Performance overview

All-In-One

CS i (indoor)

CS a (outdoor)

Aeroheat CI (Inverter)

Aeroheat CN

Heating performance in kW

Output at A2/W35

20

Aeroheat All-in-OneIndoor installation

Air / Water Refrigerant R-407C Refrigerant R-404A

Heat Pump Type AH CS 6is-D AH CS 8is-D AH CS 10is AH CS 12is

Performance data (EN 14511)

at A7/W35 Qh/COP kW/- 7.0/4.2 8.6/4.2 12.2/4.1 13.7/4.2

at A7/W50 Qh/COP kW/- 6.7/3.1 8.4/3.1 11.5/2.8 12.9/2.9

at A2/W35 Qh/COP kW/- 6.2/3.5 8.0/3.5 10.4/3.4 11.9/3.4

at A-7/W35 Qh/COP kW/- 4.7/2.9 6.1/2.8 8.4/2.8 9.5/2.7

Flow temperature min./max. +20 ° to +60 °C +20 ° to +58 °C

Air temperature min./max. -20 ° to +35 °C

Energy efficiency class W 35 A++ A+

Sound

Sound press. level inside (1m) dB(A) 47 47 47 47

Sound press. level outside (1m) dB(A) 46 46 49 49


Weight kg 290 295 300 305

Connection Inch 1" 1" 1" 1 1/4"

• Stainless steel casing

• Integrated heat pump controller

• Air flow through on-site modification

• Thermally insulated and sound-absorbing modular

duct system (polypropylene EPP)

• Integrated measurement of heat usage


– Technical 55/80 litre storage tank

– Expansion vessel 18/24 litre

– 1 scroll compressor with soft starter

– Emergency heating element 6/9 kW

– Heating circuit overflow valve

This compact and space-saving heat pump is ins-

talled indoors and is particularly suitable for a single-

family house. The air flow can be easily and quickly

modified on-site. All components are permanently

installed in this unit, which makes the installation

simple and inexpensive.

Characteristics

++60 A++ 46

21

AeroheatIndoor installation


Heat Pump Type AH CS 1-10i AH CS 1-12i AH CS 1-14i AH CS 1-18i AH CS 1-25i AH CS 1-31i


at A7/W35 Qh/COP kW/- 10.3/4.2 12.8/4.2 14.4/4.3 (10.1) 19.6/(4.2) 3.9 (14.1) 27.3/(4.2) 3.9 (19.1) 35/(4.2) 4.0

at A7/W50 Qh/COP kW/- 10.4/3.0 11.5/3.0 14.0/3.2 (10.1) 18.4/(3.1) 2.8 (14.1) 26.8/(3.1) 2.8 (18.2) 33.8/(3.0) 2.9

at A2/W35 Qh/COP kW/- 9.5/3.7 11.8/3.7 13.8/3.7 (9.5) 17.2/(3.8) 3.6 (13.2) 24.0/(3.8) 3.6 (16.8) 31/(3.6) 3.5

at A-7/W35 Qh/COP kW/- 7.5/2.9 9.1/2.9 10.8/3.0 (7.3) 14.1/(2.9) 2.8 (10.1) 19.4/(2.9) 2.8 (13.2) 25/(2.9) 2.8




Sound

Sound press. level inside (1m) dB(A) 50 50 50 51 55 60

Sound press. level outside (1m) dB(A) 50 50 51 52 53 53

Dimensions (D × W × H) mm 890x780x1355 790x1000x1525 1095x910x1780 1325x930x1890

Weight kg 260 280 370 420 540 540

Connection Inch 1" 1" 1 1/4" 1 1/4" 1 1/4" 1 1/2"



• Air flow to the right with CS 1-10i and CS 1-12i

• Air flow optionally to the right or left with CS 1-14i to

CS 1-31i

• Thermally insulated and sound-absorbing plug-in mo-

dular duct system (polypropylene EPP)

• Measurement of heat usage as an accessory


– 1 scroll compressor, from CS 1-18i 2 scroll

compressors

– Soft starter

– Emergency heating element 9kW

This compact heat pump is installed indoors and

is suitable for single-family homes and apartment

blocks. Depending on the required performance,

more of these units can be interconnected.

Characteristics

++60 A++ 50

22


• Silent in operation and air flow


– 1 scroll compressor, from CS 1-18a 2 scroll

compressors

– Soft starter

– Emergency heating element 6 kW up to

CS 1-08a, 9 kW up to CS 1-25a

• In combination with wall controller Aeroplus 2 and

connecting cable

• Measurement of heat usage as an accessory

The wide performance grading makes it possible

for the heat pump to be used optimally for new ins-

tallations as well as for reconstructions and reno-

vations. The high-quality stainless steel design is

an eye-catcher for this heat pump installed out-

doors. Depending on the required performance,

more of these units can be interconnected.

Outdoor installation

CharacteristicsAeroheat Outdoor Installation

Air / Water Refrigerant R-404A

Heat Pump Type AH CS 1-07a AH CS 1-08a


at A7/W35 Qh/COP kW/- 8.1/3.9 9.4/3.9

at A7/W50 Qh/COP kW/- 7.5/2.6 8.9/2.6

at A2/W35 Qh/COP kW/- 7.2/3.5 8.4/3.5

at A-7/W35 Qh/COP kW/- 5.7/2.8 6.6/2.8



Energy efficiency class W 35 A+

230V single-phase

at A7/W35 Qh/COP kW/- 9.8/3.8

at A7/W50 Qh/COP kW/- 9.1/3.6

at A2/W35 Qh/COP kW/- 8.0/3.1

at A-7/W35 Qh/COP kW/- 6.5/2.6

Sound pressure level in 1 m dB(A) 50 50


Weight kg 145 145

Connection Inch 1" 1"

850/750

1360/1530

1400/1600

675

1270

675

1050/1258

1780/1817

1630

1258

2130

1630

AH CS 1-07a and 1-08a

AH CS 1-14a to 1-25a / 14ar

AH CS 1-10a and 1-12a / 9ar

AH CS 1-31a

+60 A++ 50

+

23


Heat Pump Type AH CS 1-10a AH CS 1-12a AH CS 1-14a AH CS 1-18a AH CS 1-25a AH CS 1-31a


at A7/W35 Qh/COP kW/- 10.3/4.2 12.8/4.2 14.4/4.3 (10.1) 19.6/(4.2) 3.9 (14.1) 27.3/(4.2) 3.9 (19.1) 35.0/(4.2) 4.0

at A7/W50 Qh/COP kW/- 10.4/3.0 11.5/3.0 14.0/3.2 (10.1) 18.4/(3.1) 2.8 (14.1) 26.8/(3.1) 2.8 (18.2) 34.0/(3.0) 2.9

at A2/W35 Qh/COP kW/- 9.5/3.7 11.8/3.7 13.8/3.7 (9.5) 17.2/(3.8) 3.6 (13.2) 24.0/(3.8) 3.6 (16.8) 31.0/(3.6) 3.5

at A-7/W35 Qh/COP kW/- 7.5/2.9 9.1/2.9 10.8/3.0 (7.3) 14.1/(2.9) 2.8 (10.1) 19.4/(2.9) 2.8 (13.2) 25.0/(2.9) 2.8




230V single-phase

at A7/W35 Qh/COP kW/- 12.1/3.7

at A7/W50 Qh/COP kW/- 11.6/2.6

at A2/W35 Qh/COP kW/- 11.5/3.2

at A-7/W35 Qh/COP kW/- 9.2/2.5


Dimensions (D × W × H) mm 850x1400x1360 750x1600x1530 1050x1630x1780 1260x1630x1820 1260x1630x2130

Weight kg 240 260 380 430 555 585

Connection Inch 1" 1" 1 1/4" 1 1/4" 1 1/4" 1 1/2"

Air / Water Refrigerant R-407C

Heat Pump Type AH CS 9ar (reversible) AH CS 9ar (reversible 230V) AH CS 14ar (reversible)


at A7/W35 Qh/COP kW/- 9.2/4.1 9.1/4.0 15.8/4.0

at A7/W50 Qh/COP kW/- 8.8/3.0 8.6/2.8 15.5/3.0

at A2/W35 Qh/COP kW/- 9.4/3.5 9.3/3.4 13.8/3.5

at A-7/W35 Qh/COP kW/- 7.2/2.8 7.1/2.7 10.8/2.9



Energy efficiency class W 35 A+ A++

at A27/W18 Qk/EER kW/- 14.5/3.7 14.3/3.6 20.3/3.8

at A35/W18 Qk/EER kW/- 13.0/2.9 12.8/2.8 18.4/2.9


Dimensions (D × W × H) mm 850x1400x1360 1050x1630x1780

Weight kg 260 260 280

Connection Inch 1" 1" 1 1/4"

24

Aeroheat Inverter

Indoor installation AH CI 16i and CI 16iL Outdoor installation AH CI 16a

46

• Latest inverter technology

• Max. flow temperature +65 °C

• Extremely silent in operation


• Speed-controlled fan


• Emergency heating element

• Energy-efficient, speed-controlled circulation pump


Aeroheat Inverter

The CTA Aeroheat inverter heat pumps set new

standards: They are performance-controlled, the-

reby perfect for the actual output requirements,

and are thus extremely energy-efficient. The units

that can be installed indoors and outdoors are

perfectly suitable for new installations and reno-

vations.

Set-point temperature

On/Off compressor

the inverter matches efficiently

with the desired value

-20 -10-15 -5 5 15 250Source temperature C˚

kW

4

8

12

16

20

10 20 30

65˚50˚35˚

Comparison between inverter and On/Off compressor

Performance overview for specific flow temperature

65Characteristics

1050/1258

1780/1817

1630

1120

1780

915

+A++

++

25

Air / Water Indoor installation (refrigerant R-410) Outdoor installation (refrigerant R-410A)

Heat Pump Type AH CI 16 i and CI 16iL AH CI 16a

Performance data

at A10/W35 Qh min./max. kW 5.8/17.4 5.8/17.4

at A7/W35 Qh min./max. kW 5.6/16.1 5.6/16.1

at A7/W55 Qh min./max. kW 6.5/17.1 6.5/17.1

at A2/W35 Qh min./max. kW 4.9/14.2 4.9/14.2

at A-7/W35 Qh min./max. kW 4.0/13.9 4.0/13.9

at A-7/W55 Qh min./max. kW 4.0/14.7 4.0/14.7

Partial-load operation

at A10/W35 Qh/COP kW/- 10.0/4.87 10.0/4.87

Partial-load operation as per EN 14511

at A7/W35 Qh/COP kW/- 5.8/4.33 5.8/4.33

at A7/W55 Qh/COP kW/- 12.0/3.31 12.0/3.31

at A2/W35 Qh/COP kW/- 8.1/4.2 8.1/4.2

at A-7/W35 Qh/COP kW/- 13.9/3.21 13.9/3.21

at A-7/W55 Qh/COP kW/- 14.7/2.41 14.7/2.41




Sound pressure level in 1 m dB(A) 38-49 34-52

Dimensions (D × W × H) mm 1120x915x1780 1050x1630x1780

Weight kg 370 310

Connection Inch 1 1/4" 1 1/4"

Inverter technology

With the inverter technology, the performance of

the heat pump continuously matches the heat

requirement. The compressor runs to its maxi-

mum capacity only on a few days in a year, the

switch cycles are reduced, thereby increasing the

life cycle of the compressor. The building is thus

uniformly heated in an energy-efficient manner

and electricity costs are saved.

Flow temperature

Older heating plants with radiators often require

high flow temperatures. Even with domestic hot

water, high temperatures are often required. With

the Aeroheat inverter heat pump, high tempera-

ture can be generated in an economically practi-

cal manner. Benefits: The less the flow tempera-

ture, the higher the efficiency of the heat pump.

65

26

• Flow temperature up to +70 °C

• Very quiet operation between 45-50 dB(A)

• Environment-friendly, natural refrigerant (propane)

• Closed refrigerant circuit, no cooling line connections

required inside the building


• Hydraulic interior unit with heat pump controller, optio-

nally for 1 or 2 heat pumps

• Kit for easiest installation

Aeroheat High temperature

45

This unit is operated with an environment-friendly,

natural refrigerant. Thanks to a flow temperature of

up to +70 °C, it is used where a high water tempe-

rature is required. The heat pump system can be

interconnected with more of these units depending

on the required output, and is hence suitable for

single-family homes and smaller apartment blocks.

+ +

Hydraulic interior unit

Characteristics

A++

Air / Water Refrigerant R-290 Propane Heating (and cooling) Heating and cooling

Heat Pump Type AH CN 5a AH CN 7a AH CN 9a AH CN 5a(r)-230V AH CN 7a(r)-230V AH CN 5ar AH CN 7ar


at A7/W35 Qh/COP kW/- 7.1/4.8 8.5/4.3 10.1/4.1 6.8/4.5 9.3/4.2 6.8/4.6 8.7/4.3

at A7/W50 Qh/COP kW/- 6.6/3.3 8.3/3.2 9.6/3.1 6.2/3.4 8.7/3.3 6.4/3.3 8.6/3.5

at A2/W35 Qh/COP kW/- 5.6/3.8 7.7/3.8 9.0/3.6 5.5/3.7 7.4/3.5 5.4/3.7 7.3/3.7

at A-7/W35 Qh/COP kW/- 4.6/3.2 6.3/3.2 7.5/3.1 4.5/3.0 6.2/2.7 4.4/3.1 6.0/3.1

at A-7/W50 Qh/COP kW/- 4.0/2.1 5.8/2.2 7.3/2.4 4.2/2.4 4.8/2.2 4.1/2.3 5.6/2.2

Flow / air temperature min./max. +20 ° to +70 °C / -20 ° to +35 °C

Energy efficiency class W 35 A++ A++ A+ A++

at A27/W18 Qk/EER kW/- 7.9/5.0 11.1/4.6 7.9/5.0 11.1/4.6

at A35/W18 Qk/EER kW/- 7.4/4.0 10.1/3.6 7.4/4.0 10.1/3.6

Sound

Sound pressure level in 1 m dB(A) 45 45 50 47 47 45 45

Dimensions (D × W × H)

Outdoor unit mm 505x1320x930

HM1 / HM2 / Aqua Tower mm 330x550x955 / 280x650x695 / 834x600x1800

Outdoor unit mm 141 146 149 141 146 146 151

HM1 / HM2 / Aqua Tower kg 25 / 39 / 150 25 / 39 / 150 25 / 39 / 150

Connection Inch 1" 1" 1" 1" 1" 1" 1"

27

+

Domestic hot water with the Aqua Tower

Integrated hydraulic module, DHW 180 litre sto-

rage tank, buffer storage 62 litre, active cooling

not possible

Interconnecting two units

2 outdoor units can be combined with one interior

unit with the hydraulic interior unit (HM2). Outputs

of up to 18 kW are possible.

Heating and active cooling in summers

In addition to the heating in winters, this reversible

heat pump can also be switched to active cooling

in summers.

Space-saving system

The Aeroheat CN is particularly suitable for buil-

dings having a small plot size.

Consumer

04/1

6 A

rt. N

r. D

3230

Te

chni

calit

y su

bjec

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mod

ifica

tions

Bern CTA AGHunzikenstrasse 2 CH-3110 MünsingenPhone +41 (0)31 720 10 00Fax +41 (0)31 720 10 50

[email protected]/international

SwissQuality

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rtified System

I S O 9 0 0 1

Ce

rtified System

I S O 1 4 0 0 1European Quality Labe l

for Heat Pumps

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