CTC Union CombiAir MR Manual de usuario

User manual

CTC CombiAir MR

UK 1x230V

Air/water heat pump

UHB EN 2250-1

16260531

Table of Contents

41 Important information

4Installation data

4Symbols

5Serial number

5Country specific information

62 Installation function

83 Control of CTC CombiAir MR

94 Maintenance of CTC CombiAir MR

9Regular checks

9In event of long power cuts

9Silent operation

9Updating the software

105 Disturbances in comfort

10Troubleshooting

11Contact information

3Table of Contents |CTC CombiAir MR

Installation data

CTC CombiAir MRProduct

Serial number

Installation date

Installer

Accessories

Serial number must always be given.

Certification that the installation is carried out according to instructions in the accompanying installer manual and applicable regulations.

_________________________Signed__________________Date

Symbols

Explanation of symbols that may be present in this

manual.

NOTE

This symbol indicates danger to person or ma-

chine.

Caution

This symbol indicates important information

about what you should observe when maintain-

ing your installation.

TIP

This symbol indicates tips on how to facilitate

using the product.

CTC CombiAir MRChapter 1 | Important information4

1 Important information

Serial number

The serial number for CTC CombiAir MR can be found

on the side of the foot.

DATA

Caution

You need the product's (12 digit) serial number

for servicing and support.

Country specific information

United Kingdom

This installation is subject to building regulation approval,

notify the local Authority of intention to install.

Use only manufacturer’s recommended replacement

parts.

For more information see www.ctc-heating.com.

Warranty and insurance information

Thank you for installing a new CTC heat pump in your

home.

CTC heat pumps are manufactured in Sweden to the

very highest standard so we are pleased to offer our

customers a comprehensive guarantee.

The product is guaranteed for 24 months for parts and

labour from the date of installation or 33 months from

the date of manufacture, whichever is the shorter.

The CTC guarantee is based on the unit being installed

and commissioned by a CTC accredited installer, serviced

every year and the Benchmark documents completed.

Where this condition is not met, any chargeable spare

parts or components issued within the applicable guar-

antee period still benefit from a 12 month warranty from

the date of issue by the manufacturer.

We recommend the installer completes and returns as

soon as possible, your guarantee registration card or

completes the guarantee form on the CTC website,

www.ctc-heating.com.

Please ensure that the installer has fully completed the

Benchmark Checklist in the end of the Installation Instruc-

tions supplied with the product and that you have signed

to say that you have received a full and clear explanation

of its operation. The installer is legally required to com-

plete a commissioning checklist as a means of complying

with the appropriate Building Regulations (England and

Wales).

All installations must be notified to Local Area Building

Control either directly or through a Competent Persons

Scheme. A Building Regulations Compliance Certificate

will then be issued to the customer who should, on re-

ceipt, write the Notification Number on the Benchmark

Checklist.

This product should be serviced regularly to optimise its

safety, efficiency and performance. The service engineer

should complete the relevant Service Record on the

Benchmark Checklist after each service.

The Benchmark Checklist may be required in the event

of any warranty work and as supporting documentation

relating to home improvements in the optional docu-

ments section of the Home Information Pack.

5Chapter 1 | Important informationCTC CombiAir MR

An air/water heat pump installation uses the outdoor

air to heat up a home. The conversion of the outdoor

air’s energy into residential heating occurs in three dif-

ferent circuits. From the outdoor air, (1) , free heat energy

is retrieved and transported to the heat pump. The heat

pump increases the retrieved heat’s low temperature to

a high temperature in the refrigerant circuit, (2) . The

heat is distributed around the building in the heating

medium circuit, (3) .

45 ºC

55 ºC

80 ºC 5 ºC

6 ºC

1 ºC

0 ºC

123

Heating medium

Refrigerant

Outdoor air

Compressor

Condenser

Evaporator

Expansion valve

The temperatures are only examples and may vary between different installations and time of year.

CTC CombiAir MRChapter 2 | Installation function6

2 Installation function

Outdoor air

The outdoor air is sucked into the heat pump.

The fan then routes the air to the heat pump’s

evaporator. Here, the air releases the heating en-

ergy to the refrigerant and the air's temperature

drops. The cold air is then blown out of the heat

pump.

Refrigerant circuit

A gas circulates in a closed system in the heat

pump, a refrigerant, which also passes the evap-

orator. The refrigerant has a very low boiling

point. In the evaporator the refrigerant receives

the heat energy from the outdoor air and starts

to boil.

The gas that is produced during boiling is routed

into an electrically powered compressor. When

the gas is compressed, the pressure increases and

the gas's temperature increases considerably,

from 0 °C to approx 80 °C.

From the compressor, gas is forced into a heat

exchanger, condenser, where it releases heat en-

ergy to the indoor module, whereupon the gas

is cooled and condenses to a liquid form again.

As the pressure is still high, the refrigerant can

pass an expansion valve, where the pressure drops

so that the refrigerant returns to its original tem-

perature. The refrigerant has now completed a

full cycle. It is routed to the evaporator again and

the process is repeated.

Heat medium circuit

The heat energy that the refrigerant produces in

the condenser is retrieved by the indoor module's

water, the heating medium, which is heated to

55 °C (supply temperature).

The heating medium circulates in a closed system

and transports the heated water's heat energy to

the house radiators/heating coils.

The indoor module’s hot water.

7Chapter 2 | Installation functionCTC CombiAir MR

CTC CombiAir MR is controlled in different ways, depend-

ing on your system. You control the heat pump via your

indoor module (CTC EcoZenith i360 H/L ) or control

module (CTC EcoLogic M, L).

See the Installer Manual for the indoor module/control

module.

During installation, the installation engineer adjusts the

necessary settings for the heat pump in the indoor

module or control module, so that the heat pump works

optimally in your system.

CTC CombiAir MRChapter 3 | Control of CTC CombiAir MR8

3 Control of CTC CombiAir MR

Regular checks

When your heat pump is located outdoors some external

maintenance is required.

NOTE

Insufficient maintenance can cause serious

damage to CTC CombiAir MR, which is not

covered by the guarantee.

Checking grilles and bottom panel on

CTC CombiAir MR

Check regularly throughout the year that the grille is not

clogged by leaves, snow or anything else.

You should be particularly vigilant during windy condi-

tions and/or in the event of snow, as the grille can be-

come blocked.

Also check that the drain holes in the bottom panel are

free from dirt and leaves.

Regularly check that condensation is routed away cor-

rectly through the condensation pipe. Ask your installer

for assistance if required.

Keep free of snow and ice

LEK

Prevent snow building up and covering the grille on CTC CombiAir

MR.

LEK

Keep free of snow and/or ice.

Cleaning the outer casing

If necessary the outer casing can be cleaned using a

damp cloth.

Care must be exercised so that the heat pump is not

scratched when cleaning. Avoid spraying water into the

grilles or the sides so that water penetrates into

CTC CombiAir MR. Prevent CTC CombiAir MR coming

into contact with alkaline cleaning agents.

In event of long power cuts

In the event of prolonged power failures, it is recommen-

ded that the part of the heating system located outdoors

is drained. This is made easier if shut-off and draining

valves are installed. Ask you installer if you are unsure.

Silent operation

The heat pump can be set to "silent operation", which

reduces the heat pump’s noise level. The function is

useful when CTC CombiAir MR must be placed in noise-

sensitive areas. The function should only be used for

limited periods, because CTC CombiAir MR might not

reach its dimensioned power.

Updating the software

For information about updates and display settings, see

the manual for the controlling product.

9Chapter 4 | Maintenance of CTC CombiAir MRCTC CombiAir MR

4 Maintenance of CTC CombiAir MR

In most cases, the indoor module/control module notes

a malfunction (a malfunction can lead to disturbance in

comfort) and indicates this with alarms and action instruc-

tions in the display.

NOTE

Work behind covers secured by screws may

only be carried out by, or under the supervision

of, a qualified installation engineer.

Troubleshooting

If the operational interference is not shown in the display

the following tips can be used:

Basic actions

■Group and main fuses of the accommodation.

■The property's earth circuit breaker.

■Make sure that the air flow to CTC CombiAir MR is not

blocked by foreign objects.

■Check that CTC CombiAir MR does not have any extern-

al damage.

Ice build-up in the fan, grille and/or fan cone

If problems arise, contact your installer.

Water below CTC CombiAir MR (larger

amount)

Check that the water drainage via the condensation pipe

(KVR) is working.

CTC CombiAir MRChapter 5 | Disturbances in comfort10

5 Disturbances in comfort

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