CTC Union EcoAir 500M Manual

162 605 38-1 P93769 2024-01-15
Important!
• Read carefully before use and
save for future reference.
• Original instructions for use.
Installation and Maintenance Manual
CTC EcoAir 700M
Model 708M / 712M
Modulating air-to-water heat pump

Table of contents
The complete system________________________________________________________________________ 3
Checklist ______________________________________________________________________________________________ 4
1. Important to remember!............................................................................................5
1.1 Transportation............................................................................................................................................ 5
1.2 Positioning....................................................................................................................................................... 5
1.3 Recycling............................................................................................................................................................. 6
1.4 After commissioning......................................................................................................................... 6
2. Safety Regulations —
Flammable refrigerants, safety group A3............................................7
3. Connection alternatives.......................................................................................... 16
4. Technical data....................................................................................................................... 17
4.1 Dimensional drawing ................................................................................................................. 19
4.2 Component placement............................................................................................................. 20
4.3 Refrigerant system.......................................................................................................................... 23
4.4 Operating range.................................................................................................................................. 24
5. Installation................................................................................................................................ 25
5.1 Included in the delivery............................................................................................................ 25
5.2 Placement of the heat pump........................................................................................... 25
5.3 Preparation and drainage ................................................................................................... 26
5.4 Condensation water...................................................................................................................... 26
6. Pipe installation.................................................................................................................. 27
6.1 Pipe connection................................................................................................................................... 27
6.2 Example of connection of the heat pump
to CTCEcoZenith (L)indoor module................................................................... 28
7. Pressure drop chart....................................................................................................... 29
8. Electrical installation ................................................................................................... 30
8.1 Communication connection.............................................................................................. 31
8.2 Connection table for electrical components............................................ 35
8.3 Wiring diagram 400V 3N~.................................................................................................... 37
9. First start..................................................................................................................................... 41
10. Operation and maintenance............................................................................. 41
11. Troubleshooting................................................................................................................. 44
Software update
software.ctc.se
For more information on updated functions and downloading the latest software, see the website ”software.ctc.se”.
EN

3
CTC EcoAir 700M
The complete system
CTC EcoAir 700M
CTC EcoAir 700M (models 708M and 712M) is a
modulating air-to-water heat pump that transfers
heat from the outside air to the property’s existing
heating circuit. The heat pump works with outside air
temperatures as low as -25 °C.
CTC EcoAir 700M can also deliver cooling together with
the control products CTC EcoPart i600M, CTC EcoLogic
L/M and CTC EcoZenith i360. The cooling function creates
a comfortable indoor climate even on hot days of the
year.
Control
CTC EcoAir 700M is controlled by these products:
• CTC EcoLogic L/M/S
• CTC EcoPart i600M
• CTC EcoVent i360F
• CTC EcoZenith i255
• CTC EcoZenith i360
• CTC EcoZenith i555 Pro
Charge pumps
CTC’s PWM-controlled charge pumps are included with
the products CTC EcoZenith i255/i360, CTC EcoPart i600M
and CTC EcoVent i360F, and are available as accessories
for CTC EcoZenith i555 Pro and CTC EcoLogic L/M/S.
Energy labels can be downloaded from
www.ctc-heating.com/ecodesign.
!Information in this type of box [!] is
particularly important for correctly
installing and using the product.
iInformation in this type of box [i] is
intended to help ensure that the product
functions optimally.

4CTC EcoAir 700M
Checklist
The checklist must always be completed by the installer
• If a service is performed, you may be required to provide this document.
• Installation must always be carried out according to instructions in the Installation and
Maintenance Manual.
• Installation must always be carried out in a professional manner.
Following installation, the unit must be inspected and functional checks performed as
indicated below:
Pipe installation (see also the chapter “Pipe installation”)
The heat pump is positioned and adjusted in the correct manner according to the instructions.
The heat pump is positioned so that it can be serviced.
Capacity of the charge/radiator pump (depending on type of system) for the ow required.
Make sure there is ow.
Open the radiator valves (depending on type of system) and other relevant valves.
Leak tightness test.
Bleed the system.
The safety valves’ stated opening pressure. The outdoor unit must have a lower opening
pressure than the indoor unit. See the chapter “Pipe installation/Pipe connection” for more
information.
Action taken to deal with condensation water.
Electrical installation (see also the chapter “Electrical installation”)
Operating power switch.
Correct taut cabling.
Requisite sensors tted.
Heat pump activated and started.
Accessories.
Customer information (adapted to the relevant installation)
Inform that the heat pump contains a ammable refrigerant and the safety risks this involves.
Also inform about the heat pump’s safety area.
Startup with customer/installer.
Menus/controls for selected system.
Installation and Maintenance Manual supplied to the customer.
Check and lling, heating circuit.
Information on ne adjustments.
Alarm information.
Function test of the heat pump’s safety valve, see section "Periodic maintenance" in chapter
“Operation and maintenance".
Review warranty terms and conditions with the customer.
Register the product for warranty and insurance via the website ‘www.ctc-heating.com’.
Information on procedures for fault registration.
________________________________________________________ ___________________________________________________________
Date/Customer Date/Installer

5
CTC EcoAir 700M
!
1. Important to remember!
In particular, check the following sections at delivery and installation.
1.1 Transportation
• The heat pump contains the ammable refrigerant R290 with UN
number 1978 (hazard identication number 23). Special regulations
apply for transportation, loading and unloading of equipment
containing this refrigerant.
• The heat pump must be transported and stored upright.
1.2 Positioning
• Transport the heat pump with the packaging to the installation site by
crane truck or hand truck if the foundation permits this.
• Remove the packaging and lift the heat pump from the pallet to its
nal position with the aid of lifting straps that are drawn through the
leg frames on both sides.
Remember the following when lifting using a lifting strap:
Lifting heavy weights may cause back and other injuries!
–Ensure that a sucient number of people help to lift the heat pump
from the pallet onto the foundation. Check the weight of the product,
which is stated in the chapter “Technical Data”.
–The heat pump’s centre of gravity is offset to the right side of the
product, seen from the front.
–Take care that the protruding primary ow and return pipes, as well
as the electric cables on the back of the heat pump, are not damaged
during lifting.
WARNING!
• The heat pump must never be moved by taking hold of the front of
the product.
• Check before installing that the heat pump has not been damaged
during transportation. Report any transport damage to the carrier.
• Place the heat pump on a solid foundation, preferably concrete.
If the heat pump needs to be placed on soft matting, base plates
must be placed under the adjustable feet.

6CTC EcoAir 700M
Fill in the information below. It may be useful if anything should happen.
Product: Serial number:
Pipe installer: Name:
Date: Tel. no.:
Electrical installer: Name:
Date: Tel. no.:
No liability is accepted for any misprints. We reserve the right to make design changes.
When contacting customer service,
always mention the following:
• Serial number
• Model/size
• The fault message shown in the
display
• Your telephone number
Serial number
• Place the heat pump so that air does not recirculate to the evaporator.
If the heat pump is in a raised position, protection to prevent
recirculation under the product must be installed.
• Place the heat pump so that a safety area can be established in
its vicinity; see the section “Safety area” in the chapter “Safety
Regulations — Flammable Refrigerants, safety group A3”.
• Remember that there must be a service space of at least one metre
on each side of the heat pump.
1.3 Recycling
• The packaging must be deposited at a recycling station or with the
installer for correct waste management.
• Obsolete products must be disposed of correctly and transported to a
waste station or distributor/retailer offering this service.
Disposing of the product as household waste is not permitted.
Note!
The product contains a ammable refrigerant.
• It is very important that the product’s refrigerant, compressor oil and
electric/electronic components are disposed of correctly.
1.4 After commissioning
• The installer advises the property owner on the construction and
servicing of the system.
• The installer completes the checklist on the previous page and enters
contact information - the customer and installer sign the list, which is
saved by the customer.
• Register the product for warranty and insurance via the website
‘www.ctc-heating.com’.

7
CTC EcoAir 700M
2. Safety Regulations —
Flammable refrigerants, safety
group A3
Annex DD, standard EN 60335-2-40
Annex DD in standard EN 60335-2-40 establishes requirements for information
in the instruction manual for the installation, service and maintenance of
equipment that contains ammable refrigerants.
Safety symbols
This symbol warns of personal injury.
This symbol warns of personal injury, specically re/explosion hazards.
WARNING!
Note!
Information that is marked with the word “Note!” provides further
information.
General
• Do not speed up the defrosting process more than is recommended
by the manufacturer.
If ice forms anywhere on the product, it must not be broken loose but
removed with lukewarm water.
• During storage, the heat pump must be placed in a room without
sources of ignition (for example, open ames, gas source in operation
or immersion heater in operation) and with a suciently large oor
surface.
• The cooling circuit with refrigerant must not be drilled into or heated
up.
• Remember that refrigerants may be odourless.
• The heat pump must be installed and commissioned outdoors at a
distance from the outer wall according to the chapter “Safety area”.
During indoor storage, the space must be a minimum 26 m2and well
ventilated.
WARNING!
WARNING!

8CTC EcoAir 700M
General information
WARNING!
The heat pump contains the ammable refrigerant R290 (propane C3H8). In
the event of leakage, a ammable or explosive atmosphere is formed with the
surrounding air.
Gas leaks may lead to explosions, resulting in very severe personal injury and
death. Risk of suffocation by inhalation.
The cooling circuit with refrigerant is an integrated part of the heat pump,
which is installed by CTC at the factory. The cooling circuit must not be
modied.
Only CTC-approved components must be used if safety-critical components in
the system are to be replaced; see also the section “Service works”.
For more information on maintenance, cleaning and preventative maintenance
of the heat pump, see the chapter “Operation and maintenance”.
For more information on setup and commissioning of the heat pump, see the
chapter “Installation”.
Non-ventilated spaces
The heat pump must be installed and commissioned outdoors.
During storage, the heat pump must be placed in a room without sources
of ignition (for example, open ames, gas source in operation or immersion
heater in operation) and with a suciently large oor surface.
The heat pump must be stored so that no mechanical damage can occur.
Qualications, authorised personnel
Work on a cooling circuit with ammable refrigerant may only be performed
by authorised personnel with applicable certicates in handling ammable
refrigerants from a competent authority that is recognised in the industry.
Service must only be performed according to the manufacturer’s
recommendations; see the chapter “Operation and maintenance”.
Maintenance and repair work that requires the help of personnel with another
competence must be performed under the supervision of personnel who are
authorised to handle ammable refrigerants.
Service works
Check of the work area
Before service work on installations that contain ammable refrigerants
is started, safety checks must be performed to minimise the risk of the
refrigerant igniting.
A risk assessment should always be carried out when performing measures or
working on the refrigeration system, based on the conditions of each individual
case, such as ventilation, space, etc.
Work process
Service work must be performed according to a predetermined process in
order to minimise the risk of ammable gas or vapour leaking out during the
work process.
WARNING!

9
CTC EcoAir 700M
General, work in the vicinity
All maintenance personnel and other people working in the vicinity must be
informed of the risks that the service works involve. Work in conned spaces
must be avoided. The service area must be segregated. Ensure that the area is
safe before work with ammable material.
Detecting refrigerant
The area must be checked with a suitable refrigerant detector before and
during the work so that the service technician can be certain that there is no
refrigerant leakage. Ensure that the detection equipment is suitable for use
when working with ammable refrigerants so that, for example, no sparking
can occur from the equipment, or that it is suciently well sealed or explosion-
proof.
Fire extinguishers
Suitable re extinguishing equipment must be available, for example, dry
powder or CO2 re extinguishers, in heat-generating service works or in
connection with installation of the heat pump.
No sources of ignition
No sources of ignition may be used in such a way that they could cause a risk
of re or explosion in service works in connection with the heat pump. All
possible sources of ignition, including smoking, should be kept a sucient
distance from the workplace due to the risk of release of refrigerant in the
vicinity. Before starting work, the vicinity must be examined to ensure that
there are no re hazards or ignition risks. Signage must state that smoking is
prohibited.
Ventilated service area
Service works must be performed outdoors or in a space that is suciently
ventilated during the time that work is ongoing. The ventilation must safely
ensure that any released refrigerant is taken care of and released into the
atmosphere.
System checks
If electrical components in connection with the refrigerant need to be replaced,
the replacement components must be equivalent in function and specication.
CTC’s guidelines for maintenance and service must always be followed. If in
doubt, contact CTC’s technical support department.
Check of electrical components
Repair and maintenance of electrical components must be preceded by safety
checks and procedures for inspecting the components. In the event of a fault
that may endanger safety, the power must not be connected until the fault has
been remedied. If the fault cannot be remedied immediately and continued
operation of the system is important, a suitable temporary solution may be
used. This must be reported to the owner of the equipment.
Initial safety checks must include:
• Checking that capacitors are discharged; this must be performed in a
safe way to avoid the risk of sparking.
• Ensuring that no electrical components or cabling are exposed during
evacuation or lling of refrigerant.
• Checking that earthing is intact.

10 CTC EcoAir 700M
Repair of sealed electrical components
WARNING!
When repairing sealed electrical components, the heat pump must rst be
disconnected from the power source before removing the protective covering
of the sealed components. If a power supply to the heat pump is necessary
during the service case, a leak detector solution must be used at the most
critical site in order to warn of a potentially dangerous situation.
After service works with electrical components, ensure that their protective
coverings have not been affected. Also check that no damage to cables or
gaskets has occurred. No further electrical connections may be added.
Ensure that installation occurs in a safe manner.
Ensure that gaskets are intact and full the protective function in a ammable
environment. Replacement components must full the manufacturer’s
specications.
Note!
Use of silicon sealant may limit the ecacy of certain types of leak detection
equipment. Explosion-proof components do not need to be isolated before
starting work on them.
Cabling
WARNING!
Check that cables are not subject to wear, corrosion, increased pressure,
vibrations, sharp edges or are affected by environmental factors. During the
check, the effects of age/wear or impact from continuous vibration sources,
such as compressors and fans, must also be assessed.
Leak detection, detection of ammable
refrigerants
WARNING!
Under no circumstances may sources that could potentially be ignited be used
to detect refrigerant leaks. Leak detectors that use open ames must not be
used.

11
CTC EcoAir 700M
Leak detection methods
WARNING!
The leak detection methods stated below are considered acceptable for cooling
systems with ammable refrigerants.
Electronic leak detectors must be used to detect refrigerant leaks; however, the
sensitivity may be inadequate and the detectors may need to be recalibrated
(in a refrigerant-free area). Ensure that the detector is not a potential source of
ignition and is suitable for use with the relevant refrigerant. The leak detection
equipment must be set to a percentage of the refrigerant’s LFL (ignition limit)
and be calibrated against the refrigerant so that a suitable percentage of gas
(maximum 25%) can be established.
Lead detection uids are also suitable for use together with the majority of
refrigerants; however, the use of uids that contain chlorine must be avoided,
as the chlorine can react with the refrigerant and corrode the copper pipes.
If refrigerant leakage is suspected, all open ames must be removed/
extinguished.
If refrigerant leakage is detected that requires soldering, all refrigerant must
be recovered from the system or isolated (with the aid of shut-off valves) in a
part of the system that is sited far from the leak. Oxygen-free nitrogen (OFN)
must then be purged through the system both before and during the soldering
process.
Empty and evacuate refrigerant
WARNING!
Once the refrigerant circuit is opened to perform repairs, or for any other
reason, conventional processes must be applied. It is important that best
practices are followed for ammable refrigerants. The following process must
be followed:
• Empty the cooling circuit of refrigerant.
• “Purge” the circuit with inert gas (a gas that does not chemically react
with its surroundings).
• Evacuate.
• “Purge” the cooling circuit again with inert gas.
• Open the cooling circuit by cutting or soldering.
The refrigerant must be recovered in appropriate recovery cylinders. The
system must be “purged” with oxygen-free nitrogen (OFN) to make the unit
safe. This process may need to be repeated several times. Compressed air or
oxygen must not be used.
“Purging” of the refrigerant circuit must be carried out so that the vacuum
in the system is breached with OFN. Then continue to ll the circuit until its
working pressure is reached, bleed to atmospheric pressure, and nally reduce
the pressure to vacuum. This process must be repeated until no refrigerant
remains in the system. Once the nal OFN purging has been performed, the
system pressure must be reduced to atmospheric pressure so that work can
be started. This procedure is absolutely necessary if soldering to pipelines is to
occur.
Ensure that the outlet of the vacuum pump is not near any potential sources of
ignition and that the ventilation is good.

12 CTC EcoAir 700M
Filling of refrigerant
WARNING!
In addition to conventional lling processes, the following requirements must
be met.
• Ensure that contamination by other refrigerants does not occur
when using the lling equipment. Hoses or leads must be as short as
possible in order to limit the amount of refrigerant that they contain.
• Cylinders must be stored in a safe manner in accordance with the
instructions.
• Ensure that the cooling system is earthed before lling the system
with refrigerant.
• Label the cooling system once the lling is complete (if it has not
already been labelled).
• Show utmost caution not to overll the cooling system.
Before the system is lled again, it must be pressure tested with appropriate
purge gas. The system must be tested for leakages after lling but before
commissioning. A follow-up leakage test must be performed before the work
is ended.
Evacuation of refrigerant
WARNING!
Before this process is performed, it is important that the service technician be
completely familiar with the equipment and its function. The refrigerant must
be recovered in a safe manner. When reusing recovered refrigerant, an oil
and refrigerant test must be performed (if such an analysis is required) before
evacuating the refrigerant. An electrical connection must be available before
starting the process.
a. Familiarise yourself with the equipment and its function.
b. Isolate the system electrically.
c. Before starting the process, ensure that:
• Equipment for handling refrigerant cylinders is available, if required.
• All personal protective equipment is available and used correctly.
• The evacuation process is monitored at all times by an authorised
person.
• Evacuation equipment and refrigerant cylinders full relevant
standards.
d. Reduce the pressure in the cooling system, if possible.
e. If it is not possible to achieve vacuum pressure, use a pipe solution so
that refrigerant can be evacuated from different parts of the system.
f. Ensure that the refrigerant cylinder is placed on a scale before
evacuation occurs.
g. Start the evacuation equipment and use it in accordance with the
instructions.
h. The cylinders must not be overlled (maximum 80% uid volume).

13
CTC EcoAir 700M
i. The cylinders’ maximum work pressure must not be exceeded in any
event.
j. Once the bottles are correctly lled and the process is ended, ensure
that the cylinders and evacuation equipment are immediately moved
from the site and that all shut-off valves on the equipment have been
closed.
k. Recovered refrigerant must not be lled into another cooling system
that has not been cleaned and checked rst.
Labelling
The heat pump must be equipped with a label that shows that it has been
decommissioned and emptied of refrigerant. The label must be dated and
signed. Ensure that there are labels on the equipment that state that the
equipment contains ammable refrigerant.
Recovery of refrigerant
WARNING!
Once a refrigerant has been evacuated from the heat pump, either in service
or upon scrapping, it is good practice for the refrigerant to be recovered in a
safe manner.
When transferring refrigerant to cylinders, ensure that only intended recovery
cylinders are used. Ensure that the total number of cylinders required are
available to handle the total volume of refrigerant in the cooling system. All
relevant cylinders must be intended for the refrigerant that is recovered and
be labelled for this refrigerant (i.e. special cylinders that are suitable for the
recovery of refrigerant). The cylinders must be equipped with a pressure relief
valve and associated shut-off valves in a well functioning state. Empty cylinders
must be evacuated of any refrigerant and, if possible, cooled before they are
lled during recovery.
The recovery equipment must be in good condition with setup instructions
for the equipment on hand. The equipment must be suitable for the recovery
of ammable refrigerants. In addition, a set of calibrated scales must be
available and in good condition. Hoses must be equipped with leakage-
free disconnections and be in good condition. Before using the recovery
equipment, check that is in a satisfactory condition, has been well maintained
and that all associated electrical components are sealed to prevent ignition in
the event of refrigerant release. Contact CTC if you are unsure.
The recovered refrigerant must be returned to the refrigerant supplier in
appropriate recovery cylinders and a relevant document for waste transport
(“Waste Transfer Note”) must be created. Do not mix different refrigerants in
recovery containers and particularly not in the refrigerant cylinders.
If a compressor or compressor oil has to be recovered, ensure that they have
been evacuated to an acceptable level to ensure that no ammable refrigerant
remains in the lubricant. The compressor must be evacuated before disposal
and transported to a waste station or retailer/distributor who provides this
type of service. Only electrical heating of the compressor may be used to
accelerate this process. When oil is drained from a system, this must occur in a
safe manner.

14 CTC EcoAir 700M
C
B
BB
B
B
1000 mm 1000 mm
1000 mm
1000 mm
1000 mm
400 mm
(A)
(A)
C
B
B
A
1000 mm
1000 mm
400 mm
(A)
(A)
The heat pump’s safety area (A), placement in a corner.
The heat pump’s safety area (A), placement against a wall.
Safety area
WARNING!
The images show the safety area (A) that applies to the
heat pump.
The following conditions must not occur within the safety
area:
• Openings in the building, e.g. windows, doors,
light sources or skylights.
• Air supply from ventilation and air conditioning
systems.
• Property borders, adjacent property, walkways
and other roads.
• Pump shafts, inow to the drainage system
without water traps, downpipes and sewage
trenches etc.
• Other troughs, wells, recesses, shafts.
• Electrical connections to the building.
• Electrical systems, plug sockets, lights, switches.
• Snowfall from roofs.
Do not introduce sources of ignition in the safety area:
• Open ames or burner assemblies.
• Grills/barbecues.
• Sparking tools.
• Electrical equipment with sources of ignition,
mobile units with inbuilt batteries (e.g. cars,
mobile telephones, tness trackers etc.).
• Objects with a temperature exceeding 360 °C.

15
CTC EcoAir 700M
Safety equipment
WARNING!
• When handling the product with a hoist ring or similar device, make
sure that the lifting equipment, eyebolts and other parts are not
damaged. Never stand under the hoisted product.
• Never jeopardise safety by removing bolted covers, hoods or similar.
• Never jeopardise safety by deactivating safety equipment.
Note!
• The product is classed as IPX4 and is approved for outdoor use.
• This device can be used by children from the age of eight years and
above, and by people with reduced physical, sensory or mental ability
or lack of experience or knowledge, if they have been taught, either
with supervision or with the instructions provided, how to use the
device safely and understand the risks involved. Children should not
play with the device. Cleaning and maintenance should not be carried
out by children without supervision.
• If these instructions are not followed when installing, operating and
maintaining the system, CTC’s commitment under the applicable
warranty terms is not binding.

16 CTC EcoAir 700M
CTC EcoZenith i360 /
CTC EcoPart i600M
CTC EcoVent i360F
CTC EcoAir 700M
CTC EcoLogic S CTC EcoLogic L/M
CTC EcoZenith i555 Pro
CTC EcoZenith i255
3. Connection alternatives
Various connection alternatives for CTC EcoAir 700M are shown below.
!Control products must have program
version 2023-11-01 or later.

17
CTC EcoAir 700M
4. Technical data
EcoAir 708M, 3x400V EcoAir 712M, 3x400V
Article number 590500001 590510001
Product data number (GTIN/EAN) 7333077103705 7333077103712
HP-Keymark 012-C700200 012-C700200
General data
Weight (gross) / Weight (net) kg 189 / 164 189 / 164
Dimensions (DxWxH), package excluded mm 510 x 1248 x 1068 510 x 1248 x 1068
Dimensions (DxWxH), package included mm 802 x 1325 x 1217 802 x 1325 x 1217
Packaged volume m31,29 1,29
Ingress Protection class (IP) IP X4 IP X4
Capacity
Heating capacity max: W35 & A +12/+7/+2/-7/-15 kW 8,71 /6,96 /5,66 /5,51 /4,13 11,23 /9,04 /7,36 /7,11 /6,24
Heating capacity nominal: W35 & A +12/+7/+2/-7/-15 kW 5,8 /4,95 /3,86 /3,23 /2,52 5,8 /4,95 /3,86 /3,23 /2,52
Heating capacity min: W35 & A +12/+7/+2/-7/-15 kW 2,32 /1,99 /2,07 /- /- 2,32 /1,99 /2,07 /- /-
Power input max: W35 & A +12/+7/+2/-7/-15 kW 1,82 /1,72 /1,62 /1,75 /1,62 2,6 /2,63 /2,54 /2,08 /2,74
Power input nominal: W35 & A +12/+7/+2/-7/-15 kW 0,99 /1,02 /1 /0,99 /0,95 0,99 /1,02 /1 /0,99 /0,95
Power input min: W35 & A +12/+7/+2/-7/-15 kW 0,37 /0,4 /0,48 /- /- 0,37 /0,4 /0,48 /- /-
COP max: W35 & A +12/+7/+2/-7/-15 4,78 /4,05 /3,49 /3,15 /2,55 4,33 /3,44 /2,9 /2,54 /2,27
COP nominal: W35 & A +12/+7/+2/-7/-15 5,86 /4,87 /3,87 /3,26 /2,64 5,86 /4,87 /3,87 /3,26 /2,64
COP min: W35 & A +12/+7/+2/-7/-15 6,26 /5,01 /4,34 /- /- 6,26 /5,01 /4,34 /- /-
Speed control, min-max RPS 20-80 20-120
Nominal speed A7/W35 RPS 50 50
Nominal speed A7/W55 RPS 50 50
Cooling capacity
Cooling capacity max: A35 & W18/W7 kW 7,53 /5,65 7,53 /5,65
Cooling capacity nominal: A35 & W18/W7 kW 5,24 /3,79 5,24 /3,79
Cooling capacity min: A35 & W18/W7 kW 1,56 /0,94 1,56 /0,94
Power input max: A35 & W18/W7 kW 2,57 /2,34 2,57 /2,34
Power input nominal: A35 & W18/W7 kW 1,3 /1,25 1,3 /1,25
Power input min: A35 & W18/W7 kW 0,35 /0,36 0,35 /0,36
EER max: A35 & W18/W7 2,93 /2,42 2,93 /2,42
EER nominal: A35 & W18/W7 4,02 /3,04 4,02 /3,04
EER min: A35 & W18/W7 4,42 /2,59 4,42 /2,59
Speed control, min-max RPS 20-80 20-80
Ratingdata HP Keymark
Rating point at W35 RPS 50 50
Heating capacity at rating point: W35 kW 4,95 4,95
Power input at rating point: W35 kW 1,02 1,02
COP at rating point: W35 4,87 4,87
Flow qw at rating point: W35 m3/h 0,85 0,85
Rating point at W55 RPS 50 50
Heating capacity at rating point: W55 kW 4,78 4,78
Power input at rating point: W55 kW 1,46 1,46
COP at rating point: W55 3,28 3,28
Flow qw at rating point: W55 m3/h 0,52 0,52

18 CTC EcoAir 700M
Sound data EcoAir 708M, 3x400V EcoAir 712M, 3x400V
Sound power LWA A7/W35 (EN 12102) dB(A) 46 47
Sound power LWA A7/W55 (EN 12102) dB(A) 46 47
Minimum sound power A7/W35 (EN 12102) dB(A) 46 47
Maximum sound power A7/W35 (EN 12102) dB(A) 55 59
Sound pressure 5m A7/W35 dB(A) 27 28
Sound pressure 10m A7/W35 dB(A) 21 22
Electrical data
Rated electrical data 400V 3N~ 50Hz 400V 3N~ 50Hz
Rated power input kW 3,1 5,3
Rated current A 4,7 8
Group fuse A 16 16
Maximum starting current A 1,1 1,1
Reactive power or power factor at min. rps cosΦ -0,56 -0,56
Reactive power or power factor at max. rps cosΦ -0,96 0,98
Input power, fan W12/36/153/170 12/36/153/170
Dimension power cable mm22,5 2,5
Warm side
Maximum operation pressure (PS) bar 3 3
Water volume (V) liter 2,9 2,9
Safety valve bar 2 2
Maximum operating temperature (TS) °C 100 100
Water volume, condenser liter 2,04 2,04
Flow qw nominal: A7/W35, ∆t = 5 K l/s 0,2294 0,2294
Flow qw minimum: A7/W35 at defrost l/s 0,1667 0,1667
Minimum allowed system temperature at defrost °C 25 25
Other
Air ow: silent mode m3/h 2787 2815
Air ow m3/h 2787 2787
Air ow: max m3/h 3041 3340
Refrigerant, type R290 R290
Refrigerant, charge kg 0,8 0,8
GWP value 3 3
CO2 - equivalent ton 0,002 0,002
Pressure limiter, high pressure bar 31±0,7 31±0,7
Low pressure sensor bar 0-10 0-10
Maximum operating pressure, high pressure side (PS) bar 31 31
Maximum operating pressure, low pressure side (PS) bar 31 31
Theoretical displacement of the compressor cm3/rev 30,6 30,6
Compressor type Twin rotary Twin rotary

19
CTC EcoAir 700M
EcoAir 708M / 712M
mm
A551
B1096
C 1248
D175
E 1068
F 297
G85
H 8
I390
J 28
K 87
L510
M40
A
B
40
D
E
C
H
I
F
G
L
K
J
M
4.1 Dimensional drawing
Sound power LWA A7/W35 (EN 12102) dB(A) 46 47
Sound power LWA A7/W55 (EN 12102) dB(A) 46 47
Minimum sound power A7/W35 (EN 12102) dB(A) 46 47
Maximum sound power A7/W35 (EN 12102) dB(A) 59
Sound pressure 5m A7/W35 dB(A) 27
Sound pressure 10m A7/W35 dB(A)
400V 3N~ 50Hz 400V 3N~ 50Hz
3,1 5,3
A 4,7
Group fuse A
Maximum starting current A 1,1 1,1
cosΦ -0,56 -0,56
Reactive power or power factor at max. rps cosΦ -0,96 0,98
Input power, fan 12/36/153/170 12/36/153/170
2,5 2,5
Maximum operation pressure (PS)
Water volume (V) 2,9 2,9
Maximum operating temperature (TS) °C
Water volume, condenser 2,04 2,04
Flow qw nominal: A7/W35, ∆t = 5 K l/s 0,2294 0,2294
Flow qw minimum: A7/W35 at defrost l/s 0,1667 0,1667
°C
Air ow: silent mode /h 2787
Air ow /h 2787 2787
Air ow: max /h 3041 3340
Refrigerant, type R290 R290
Refrigerant, charge 0,8 0,8
GWP value
CO - equivalent 0,002 0,002
Pressure limiter, high pressure 31±0,7 31±0,7
Low pressure sensor
Maximum operating pressure, high pressure side (PS)
Maximum operating pressure, low pressure side (PS)
/rev 30,6 30,6
Compressor type
Seasonal coecient of performance data EcoAir 708M, 3x400V EcoAir 712M, 3x400V
SCOP / Pdesignh / Etas η, cold climate W35 (EN14825, Pdesignh) 4,25 / 6 / 166,8 4,24 / 8 / 166,5
SCOP / Pdesignh / Etas η, cold climate W55 (EN14825, Pdesignh) 3,43 / 6 / 134,1 3,38 / 8,4 / 132,1
SCOP / Pdesignh / Etas η, average climate W35 (EN14825, Pdesignh) 5,04 / 5,3 / 198,3 5,00 / 7,3 / 197,0
SCOP / Pdesignh / Etas η, average climate W55 (EN14825, Pdesignh) 3,83 / 5 / 150,8 3,86 / 7 / 151,2
SCOP / Pdesignh / Etas η, warm climate W35 (EN14825, Pdesignh) 6,16 / 5,7 / 243,2 6,07 / 7,5 / 239,9
SCOP / Pdesignh / Etas η, warm climate W55 (EN14825, Pdesignh) 4,67 / 5,7 / 183,9 4,48 / 7,5 / 176,3

20 CTC EcoAir 700M
1 2
345
7
15
14
8
9
611 10
12
13
1
234510 6
911
14
13
7
8
12
15
16
5
17
4.2 Component placement
10. High pressure switch
11. Low pressure sensor
12. Expansion valve
13. Condenser
14. Drying lter
15. Hot gas sensor
16. Temperature sensor, liquid line
17. Service connections (”Schrader”)
1. Fan
2. Compressor sensor
3. Thermal switch
4. Compressor
5. Suction gas sensor
6. Four-way valve
7. Outgoing air sensor
8. Circuit board I/O
9. High pressure sensor