CTC Union CombiAir Series User guide

Installer manual
LEK
LEK
LEK
UN
CTC CombiAir
6, 8, 12, 16
Air/water heat pump
IHB EN 2024-1
16230559

Table of Contents
41 Important information
4Safety information
4Symbols
4Marking
4Serial number
4Recovery
5Environmental information
6Inspection of the installation
7Indoor modules
7Control modules
82 Delivery and handling
8Transport and storage
8Assembly
11Supplied components
12Removing the covers
13Removing the front panel
14Removing the side panel
153 The heat pump design
15General
22Electrical connection
25Sensor data
274 Pipe connections
27General
27Pipe coupling heating medium circuit
28Pressure drop diagram
28Pipe connections flex hose
29Docking alternatives
305 Electrical connections
30General
33Connections
416 Commissioning and adjusting
41Preparations
41Filling and venting
41Compressor heater
42Start-up and inspection
42Readjusting, heating medium side
42Adjustment, charge flow
437 Control
448 Disturbances in comfort
44Troubleshooting
519 Alarm list
5210 Accessories
52Ground stand
52Wall bracket
52Condensation water pipe - KVR
5311 Technical data
53Dimensions and setting-out coordinates
57Sound levels
58Technical specifications
60Working area
61Capacity and COP
63
Output with lower fuse rating than recommen-
ded
64Energy labelling
69Electrical circuit diagram
77Item register
79Contact information
3Table of Contents |CTC CombiAir

Safety information
This manual describes installation and service procedures
for implementation by specialists.
The manual must be left with the customer.
This appliance can be used by children
aged from 8 years and above and per-
sons with reduced physical, sensory or
mental capabilities or lack of experience
and knowledge if they have been given
supervision or instruction concerning use
of the appliance in a safe way and under-
stand the hazards involved. Children shall
not play with the appliance. Cleaning
and user maintenance shall not be made
by children without supervision.
Rights to make any design or technical
modifications are reserved.
Symbols
NOTE
This symbol indicates danger to person or ma-
chine .
Caution
This symbol indicates important information
about what you should consider when in-
stalling or servicing the installation.
TIP
This symbol indicates tips on how to facilitate
using the product.
Marking
The CE mark is obligatory for most products sold
in the EU, regardless of where they are made.
CE
Classification of enclosure of electro-technical
equipment.
IP24
Danger to person or machine.
!
Read the User Manual.
Read the Installer Manual.
Serial number
The serial number for CTC CombiAir can be found on
the side of the foot.
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D ATA
Serial number
Caution
You need the product's (12 digit) serial number
for servicing and support.
Recovery
Leave the disposal of the packaging to the in-
staller who installed the product or to special
waste stations.
Do not dispose of used products with normal
household waste. It must be disposed of at a
special waste station or dealer who provides this type of
service.
Improper disposal of the product by the user results in
administrative penalties in accordance with current legis-
lation.
CTC CombiAirChapter 1 | Important information4
1 Important information

Environmental information
This unit contains a fluorinated greenhouse gas that is
covered by the Kyoto agreement.
The equipment contains R410A, a fluorinated green-
house gas with a GWP value (Global Warming Potential)
of 2088. Do not release R410A into the atmosphere.
5Chapter 1 | Important informationCTC CombiAir

Inspection of the installation
Current regulations require the heating installation to be inspected before it is commissioned. The inspection must
be carried out by a suitably qualified person. Fill in the page for information about installation data in the User
manual.
DateSignatureNotesDescription
✔
Heating medium (page 27)
System flushed
System vented
Particle filter
Shut-off and drain valve
Charge flow set
Electricity (page 30)
Fuses property
Safety breaker
Earth circuit-breaker
Heating cable type/effect
Fuse size, heating cable (F3)
Communication cable connected
CTC CombiAir addressed (only when
cascade connection)
Connections
Main voltage
Phase voltage
When installing CTC CombiAir , check that
the software version of the indoor mod-
ule/control module is at least 2020-06-
01.
Miscellaneous
CTC CombiAirChapter 1 | Important information6

Indoor modules
CTC EcoZenith i360 H/L
3x400 V,3x230 V, 1x230 V
Control modules
CTC EcoLogic M, L
1x230 V
7Chapter 1 | Important informationCTC CombiAir

Transport and storage
CTC CombiAir must be transported and stored vertically.
Assembly
႑Place CTC CombiAir outdoors on a solid level base that
can take the weight, preferably a concrete foundation.
If concrete slabs are used they must rest on asphalt or
shingle.
႑The concrete foundation or slabs must be positioned
so that the lower edge of the evaporator is at the level
of the average local snow depth, although a minimum
of 300 mm.
႑The CTC CombiAir should not be positioned next to
sensitive walls, for example, next to a bedroom.
႑Also ensure that the placement does not inconveni-
ence the neighbours.
႑CTC CombiAir must not be placed so that recirculation
of the outdoor air can occur. This causes lower output
and impaired efficiency.
႑The evaporator should be sheltered from direct wind,
which negatively affects the defrosting function. Place
CTC CombiAir protected from wind against the evap-
orator.
႑Large amounts of condensation water, as well as melt
water from defrosting, may be produced. Condensa-
tion water must be led off to a drain or similar (see
page 10.
႑Care must be exercised so that the heat pump is not
scratched during installation.
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LEK
min 300 mm
Min. 300 mm
Do not place CTC CombiAir directly on the lawn or other
non solid surface.
If there is a risk of snow slip from roof, a protective roof
or cover must be erected to protect the heat pump, pipes
and wiring.
CTC CombiAirChapter 2 | Delivery and handling8
2 Delivery and handling

Installation area
The distance between CTC CombiAir and the house wall
must be at least 150 mm. Clearance in front of
CTC CombiAir should be at least one metre.
150 mm
Fritt utrymme bakom
Min. avstånd
vid användning
av flera F2040
600 mm
3000 mm
400 mm 600mm
Minimalt
fritt utrymme
Minimalt
fritt utrymme
Fritt utrymme
framför
Free space behind
Min. distance when using
several CTCCombiAir
Minimum free
space
Minimum free
space
Free space in
front
1000 mm
9Chapter 2 | Delivery and handlingCTC CombiAir

Condensation water trough
The condensation water trough collects and leads away
most of the condensation water from the heat pump.
NOTE
It is important for the heat pump’s function
that the condensation water is led away and
that the outlet for the condensation water pipe
(KVR) is placed so as to prevent damage to the
building.
Condensation runoff should be checked regu-
larly, especially during the autumn. Clean if
necessary.
NOTE
Pipe with heating cable for draining the con-
densation water trough is not included.
To ensure this function, the accessory KVR
should be used.
KVR= Condensation water pipe
NOTE
The electrical installation and wiring must be
carried out under the supervision of an author-
ised electrician.
႑The condensation water (up to 50 litres/24 hrs) that
collects in the trough should be routed away by a pipe
to an appropriate drain, it is recommended that the
shortest outdoor stretch possible is used.
႑The section of the pipe that can be affected by frost
must be heated by the heating cable to prevent
freezing.
႑Route the pipe downward from CTC CombiAir .
႑The outlet of the condensation water pipe must be at
a depth that is frost free or alternatively indoors (with
reservation for local ordinances and regulations).
႑Use a water trap for installations where air circulation
may occur in the condensation water pipe.
႑The insulation must seal against the bottom of the
condensation water trough.
Recommended alternative for leading off
condensation water
Stone caisson
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Frostfrit
t
Frost proof depth
If the house has a cellar the stone caisson must be posi-
tioned so that condensation water does not affect the
house. Otherwise the stone caisson can be positioned
directly under the heat pump.
The outlet of the condensation water pipe must be at
frost free depth.
CTC CombiAirChapter 2 | Delivery and handling10

Drain indoors
Water seal
The condensation water is lead to an indoor drain (sub-
ject to local rules and regulations).
Route the pipe downward from CTC CombiAir .
The condensation water pipe must have a water seal to
prevent air circulation in the pipe.
KVR are spliced as illustrated. Pipe routing indoors is not
included.
Gutter drainage
Frostfritt
djup
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Frost proof depth
Water seal
The outlet of the condensation water pipe must be at
frost free depth.
Route the pipe downward from CTC CombiAir .
The condensation water pipe must have a water seal to
prevent air circulation in the pipe.
Caution
If none of the recommended alternatives is
used good lead off of condensation water must
be assured.
Supplied components
LEK
Filterball (G1").
2 x flexible pipes (DN25, G1")
with 4 x gaskets.
1 x communication cable
11Chapter 2 | Delivery and handlingCTC CombiAir

Removing the covers
CTC CombiAir 6
UN
CTC CombiAir 8
LEK
CTC CombiAir 12
LEK
CTC CombiAir 16
LEK
CTC CombiAirChapter 2 | Delivery and handling12

Removing the front panel
CTC CombiAir 6
UN
CTC CombiAir 8
LEK
CTC CombiAir 12
LEK
CTC CombiAir 16
LEK
13Chapter 2 | Delivery and handlingCTC CombiAir

Removing the side panel
CTC CombiAir 12
LEK
CTC CombiAir 16
LEK
D ATA
CTC CombiAirChapter 2 | Delivery and handling14

General
CTC CombiAir 6
UN
GQ1
DH
EP1
EB11
CM
20S
PF3
GQ10
QM36
QM37
FM01
HS1
BT15
QN2
AA23
BT12
EP2
UB3
TBFPWB1
RF2
RF3
DATA
UB3
W1
UB1
UB2
XL1
XL2
DATA
PF3
BT28
Tho-R1
PF1
Tho-A
BT16
15Chapter 3 | The heat pump designCTC CombiAir
3 The heat pump design

CM
GQ10
20S
BT15
QN2
BT12
QN1
BP4
BT3
HS1
UB3
EP2
QM36
QM37
Tho-DBT14
CTC CombiAirChapter 3 | The heat pump design16

CTC CombiAir 8
LEK
GQ1
DH
UB3
EP1
EB11
CM
20S
63H1
LPT
SM2
SM1
FM01
PWB2 PWB3 PWB1
BT12
BT15
BP4
QN2
BT3
PF3
HS1
EP2
GQ10 QN1
BP2
QM36
QM37
BP1
QN3
CH
EB10
AA23
X1
F TBBT14 Tho-D
Tho-SBT17
LEK
DATA
XL2
UB1
UB2
W1
XL1
UB3
LEK
D ATA
PF1PF3
Tho-A
BT28
Tho-R1 Tho-R2
BT16
17Chapter 3 | The heat pump designCTC CombiAir

CTC CombiAir 12
LEK
QN1
GQ1
GQ10 QM36
QN3
QM37
TB
BP1
QN2
PWB1
PWB2
PWB3
DH
UB3
BT3
BP4
PF3
BT15
EP1
EP2
HS1
BP2
BT12
X1
EB11
CM
20S
63H1
LPT SM2
SM1
FM01
CH
EB10
AA23
Tho-DBT14
BT17 Tho-S
LEK
DATA
XL2
UB1
UB2
W1
XL1
UB3
LEK
D ATA
Tho-A
BT28
PF1PF3 Tho-R1
BT16
Tho-R2
CTC CombiAirChapter 3 | The heat pump design18

CTC CombiAir 16
LEK
GQ1
DH
X1
CM
63H1
CH
SM2
SM1
FM01
PWB2 PWB3 PWB1
QN2 20S
BT12
TB
BP1
PF3
QN3
BP4
BT3
BT15
UB3
GQ10 HS1
QN1
EP2
QM37
QM36
EB11
GQ2 FM02
EP1
F
LPT
BP2
AA23
Tho-D
BT14 EB10
Tho-SBT17
19Chapter 3 | The heat pump designCTC CombiAir

LEK
DATA
XL2
UB1
UB2
XL1
UB3
W1
LEK
D ATA
PF3 PF1
BT28
Tho-A
Tho-R1 Tho-R2
BT16
CTC CombiAirChapter 3 | The heat pump design20