CTC Union GS 600 Manual

Important!
• Read carefully before use,
keep for future reference.
• Translation of the original
instructions.
Installation and Maintenance Manual
CTC GS 600
Modulating ground source heat pump
Model 606 / 608
400V 3N~/ 230V 1N~/ 230V 3N~
162 505 70-5 CR00683 2023-06-20

Table of contents
1. Safety instructions...............................................................6
2. Important to remember! ....................................................7
2.1 Transportation ............................................................................... 7
2.2 Positioning...................................................................................... 7
2.3 Recycling ......................................................................................... 7
2.4 After commissioning .................................................................... 7
3. Installation............................................................................8
3.1 Unpacking....................................................................................... 8
3.2 Control functions (std.) and with Expansion Card.................. 9
4. Your home's heating installation.....................................10
5. Technical data.....................................................................14
5.1 Operating range CTC GS ........................................................... 16
5.2 Measurements............................................................................. 17
6. Design..................................................................................18
7. Parameter list.....................................................................19
8. Pipe installation .................................................................20
8.1 Schematic diagram..................................................................... 21
9. Connecting the brine system ...........................................35
9.1 Connections ................................................................................. 35
9.2 Brine system schematic diagram ............................................ 38
10. Electrical installation .........................................................41
10.1 Sensor connection...................................................................... 42
10.2 Checking connected sensors ................................................... 43
10.3 Pressure/level switch.................................................................. 43
10.4 Setting electrical output in backup power supply................ 43
10.5 PumpDithermostatfunction(G46)on/o......................... 43
10.6 Heating circuit 2 (alt. Passive cooling) .................................... 44
10.7 Pool (accessory)........................................................................... 45
10.8 External heat source (EHS)........................................................ 45
10.9 CTC EcoVent (accessory)............................................................ 45
10.10 CTC SmartControl (accessory) .................................................. 45
10.11 Solar heat (accessory) ................................................................ 46
10.12 Current sensor connection (accessory).................................. 47
10.13 Electrical diagram tank (A2), 3x400V /1.................................. 48
10.14 Flow heater (E15), 3x400V /2.................................................... 49
10.15 Terminal block (X2), 3x400V /3. ................................................ 50
10.16 Electrical diagram tank (A2), 1x230V /1.................................. 51
10.17 Flow heater (E15), 1x230V /2.................................................... 52
10.18 Terminal block (X2), 1x230V /3. ................................................ 53
10.19 Electrical diagram tank (A2), 3x230V /1.................................. 54
10.20 Flow heater (E15), 3x230V /2.................................................... 55
10.21 Terminal block (X2), 3x230V /3. ................................................ 56
10.22 HP cooling module schematic diagram 3x400V (A5) .......... 57
10.23 HP cooling module schematic diagram
1x230V / 3x230V (A5) ................................................................. 58
10.24 Expansion card (accessory) schematic diagram................... 59
10.25 Component list ............................................................................ 61
10.26 Resistance values for sensor, cooling module ...................... 62
10.27 Resistance values for sensor, other......................................... 63
11. Installation Communication.............................................64
11.1 Install ethernet cable ................................................................. 65
11.2 Remote - Screen Mirroring ....................................................... 66
11.3 myUplink - App ............................................................................ 66
12. First start.............................................................................67
13. Operation and Maintenance ............................................69
14. Detailed menu descriptions .............................................70
14.1 Start menu.................................................................................... 70
14.2 Installation wizard....................................................................... 71
14.3 Heating/Cooling .......................................................................... 72
14.4 DHW............................................................................................... 76
14.5 Ventilation..................................................................................... 76
14.6 Weekly program .......................................................................... 77
14.7 Operation data ............................................................................ 79
14.8 Display ........................................................................................... 87
14.9 Settings ......................................................................................... 89
14.10 Dene ..........................................................................................108
14.11 Service .........................................................................................121
15. Troubleshooting/Appropriate measures ......................125
15.1 Information messages.............................................................127
15.2 Alarm messages........................................................................128

3
16260542-1
!
1. Disconnect the cooling module’s power
cable connector and hoses.
2. Attach the two carrying handles to the
bottom edge of the cooling module.
3. Remove the cooling module xing screws. 4. To pull out the cooling module, rst lift the
module slightly upwards using the carrying
handles.
5. Lift the cooling module using the carrying
handles and shoulder straps.
6. Lift the cooling module into the product
using the carrying handles and shoulder
straps. Remove the carrying handles and
reconnect the power cable, hoses and
screws.
Removing the cooling module
• Any work on the product’s cooling system should be carried out by authorised personnel only.
• Close the safety switch before doing any work on the product.

4
16270515-1
For the product to work as intended, the system must be fully
bled.
It is extremely important that a basic bleeding of the product is carried out
systematically and carefully.
Bleeding devices must be tted to the system’s natural high points. A basic
bleeding of the hot water tank can be carried out upon installation by releasing
the safety valve, which must be tted to the top of the product.
The water must be circulated during bleeding of the various subsystems: the
radiator systems, heat pump system and hot water charging system (to run the
pumps, 3-way valve etc. manually, go into the menu Installer/Service/Function
test). Also move the 3-way valve during the bleeding process. A careful basic
bleeding must be carried out before the system is put into operation and the
heat pump is started.
Tip:
Once basic bleeding is complete: increase the water pressure in the system
temporarily to approx. 2 bar.
• Automatic bleeding valves are included in the package and supplied
as standard for this product. They must be tted to the top of the
product as shown in the picture.
• Important! Bleed any air remaining in the radiators (elements) and
other parts of the system after it has been in operation for a short
time.
Small microbubbles gradually collect in the system’s ‘pockets’, and it can take
quite a long time before all the air is removed from the system. When the
pressure is temporarily increased, any remaining air pockets are compressed
and carried along more easily with the ow of water and can be released into
the ventilation devices.
Tip:
After the air is bled, there may be a drop in system pressure. Having the
system pressure too low increases the risk of noise in the system and of air
being ‘sucked’ in on the suction side of the pump. Keep an eye on the system
pressure. Bear in mind that the system pressure will vary during the year due
to changes in temperature in the heating circuit, which is completely normal.
If ‘gushing’ sounds can be heard from the product, this is a sign of remaining
air.
A loss of heating functionality can also be a sign of remaining air.
The automatic bleeder is
equipped with shut o
screws.
Important! Information on air bleeding
!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.
!
If these instructions are
not followed during the
installation, operation
and maintenance of the
system, Enertech’s liability
under the applicable
warranty terms is not
binding.

5
16270556-1
Congratulations on your new product
You have just purchased a CTC GS 600, with which we
hope you will be very pleased. Read about how you can
take care of your heat pump on the following pages.
Save this manual containing the installation and
maintenance instructions. If looked after properly, you
will be able to enjoy the use of your CTC GS for many
years. This manual provides all the information you will
need.
The complete heat pump
CTC GS is a complete heat pump able to meet both the
heating and hot water needs of your ho§me. It has a
built-in, energy-ecient (A rated) circulation pump for
connection to the ground/bedrock circuit, i.e. the cold
side. This can be connected to either the left, right or back
of the heat pump, whichever suits you best.
CTC GS has a control system which:
• monitors all heat pump functions.
• allows for individual settings.
• Displays desired values, such as temperatures,
operation times, energy consumption and fault
signals.
• Facilitates the setting of values and
troubleshooting in a simple and well-structured
way.
The built-in heat exchanger provides copious amounts
of hot water. CTC GS also has a summertime basement
heating function and an underoor heating blocking
function, which maximises the temperature supplied to
the oor circuits. Using the integrated night reduction
function, you can set and change the temperature in the
house during the day, from one day to the next.
Easily accessible electrical components and cooling
modules, along with effective troubleshooting functions
in the control program make CTC GS easy to service.
If you want to supplement your CTC GS with other
sources of heating, you can do this easily. We have
decided to call this option Energyex. With Energyex you
can, for example:
• Charge your heating circuit with solar energy.
• Allow a water-jacketed stove to contribute heat.
• Connect a pool heat exchanger to heat up a
swimming pool.
Eco design information can be downloaded from
www.ctc.se/ecodesign where the energy labelling
stickers can also be printed.
!NB: This installation manual contains
information about technical data,
operation, installation, etc. Local
regulations or country-specic regulations
must be considered.

6
16260544-1
1. Safety instructions
Turn off the power with an omnipolar switch before doing any work on the
product.
The product must be connected to protective earth.
The product is classied as IPX1. The product must not be rinsed with water.
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.
Any work on the product’s cooling system should be carried out by authorised
personnel only.
Installation and connection in the product must be carried out by a
authorised electrician. All piping must be installed according to the applicable
requirements.
Service of the product’s electrical system must only be carried out by a
qualied electrician in compliance with the specic requirements of the
national standard for electrical safety.
Replacement of damaged supply cable, must be carried out by the
manufacturer or qualied service engineer to avoid risk.
Safety valve check:
-Safety valve for boiler/system to be checked regularly.
The product must not be started if it is not lled with water; instructions are in
the “Pipe installation” section.
WARNING: Do not switch on the product if there is a possibility that the water
in the heater is frozen.
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, Enertech’s commitment under the applicable
warranty terms is not binding.

7
16270523-1
2. Important to remember!
Check the following points at the time of delivery and installation:
2.1 Transportation
Transport the unit to the installation site before removing
the packaging. Handle the product in the following
manner:
• Forklift.
• Lifting eye that has been tted to the lifting
sleeve on top of the product in the expansion
connection.
• Lifting band around the pallet. NB: Can only be
used with the packaging on.
Remember that the product has a high centre of
gravity and should be handled with caution.
• The product must be transported and stored in
an upright position.
2.2 Positioning
• Remove the packaging and check before
installation that the product has not been
damaged in transit. Report any transport damage
to the carrier.
• Place the product on a solid foundation,
preferably made of concrete.
If the product needs to be placed on a soft
carpet, base plates must be placed under the
adjustable feet.
• Avoid placing the heat pump in rooms where
the walls are of lightweight design, as people
in the adjoining room may be disturbed by the
compressor and vibrations.
• Remember to leave a service area of at least 1
metre in front of the product.
• The product must not be placed below oor level
either.
2.3 Recycling
• The packaging must be deposited at a recycling
station or with the installation engineer for
correct waste management.
• Obsolete products must be disposed of correctly
and transported to a waste station or distributor/
retailer offering this service.
Disposal of the product as household waste is not
permitted.
• It is very important that the product’s refrigerant,
compressor oil and electric/electronic
components are disposed of correctly.
2.4 After commissioning
• The installation engineer advises the property
owner on the design and servicing of the system.
• The installation engineer lls in a checklist
and contact information – the customer and
installation engineer sign the list, which the
customer keeps.
• Register the product for warranty and insurance
via the website
https://www.ctc-heating.com/customer-
service#warranty-registration
No liability is accepted for any misprints. We reserve the right to make design changes.
For your own reference
Fill in the information below. It may come in useful if anything should happen.
Product: Serial number:
Installer: Name:
Date: Tel. no.:
Electrical installer: Name:
Date: Tel. no.:

8
16270577-1
9
10
8
3
9
12
11
3. Installation
This section is aimed at anyone responsible for one or more of the installations
required to ensure that the product works the way the property owner wants.
Take your time going through functions and settings with the property owner
and answer any questions. Both you and the heat pump benet from a user
who has completely understood how the system operates and should be
maintained.
3.1 Unpacking
Unpack the heat pump when it is placed next to its installation site. Check that
the product has not been damaged in transit. Report any transport damage to
the carrier. Also check that the delivery is complete according to the list below.
!The product must be
transported and stored in
an upright position.
!As the cooling module is removable, there must
be a free space of at least one metre in front of
the product and it must not be placed below oor
level either.
Delivery includes:
• Heat pump CTC GS
• Outdoor sensor
• Installation and maintenance manual
• Safety valve for heating circuit, 2.5 bar (3)
• Safety valve for cold side, 3 bar
•2 x cable ties
•2 x support sleeves
• Filter ball valve, magnetite for heating system
return flow
•Dirt filter for cold tap water
•2 x automatic bleeders (9)
•Pressure gauge (11)
• Manifold (8)
•Bushing 3/4" x 3/8" (10)
•Bushing 1/2" x 3/8" (12)

9
Basic functions
(built into the factory version)
• Heating circuit 1
• Heating circuit 2*
• EHS tank*
• Diff thermostat*
• Passive cooling*
• CTC SMS*
• Remote control
• SmartGrid
* Requires accessories such as: Extra
sensor, mixing valve group 2, etc.
Functions with expansion card (A3)
(accessory)
• Solar control
• DHW circulation
• Pool
3.2 Control functions (std.) and with Expansion Card
The product is supplied from the factory with control functions according to
"Basic functions" below.
Supplementing with the expansion card accessory (A3) adds solar control and
its variants as well as bore hole recharging and various tanks. In addition, DHW
circulation and pool control are also included.

10
16260545-1
T °C
4. Your home's heating installation
The House Heating Curve
The heating curve is the central part of the product’s
control system. It is the heating curve which determines
the compensated ow temperature requirements for your
property dependent upon the outdoor temperatures. It
is important that the heating curve is correctly adjusted,
so that you achieve the best operation and economy
possible.
One property requires a radiator temperature of 30 °C
when the outdoor temperature is 0 °C, whilst a different
property requires 40 °C. The difference between different
properties is determined by the radiator surface area, the
number of radiators and how well insulated the house is.
Part of the ”Installer/Settings/Heating Circuit/Heating Circuit 1” menu.
iFor more information on how to set the
heating curve, see section ”Heating curve”
in chapter ” Settings / Heating circuit”.
Menu: ”Installer / Settings / Heating Circuit / Heating Circuit 1/Heating
curve/Fine adjustment".
Menu: ”Installer / Settings / Heating Circuit / Heating Circuit 1/Heating
curve". Active curve: #1.
Adjusting the heating curve
In the ”Heating curve” menu under ”Settings/Heating
circuit”, you can ne adjust the values of the heating
curve for the primary ow temperature in relation to
the outdoor temperature in the graph, as well as set the
values for curve inclination and curve adjustment for the
heating circuit.
See section ”Heating curve” in chapter ”Settings/
Heating circuit” for detailed information.
Ask your installer to help you set these values.
It is extremely important to set the heating curve and, in
some cases, unfortunately, this process may take several
weeks. The best way of doing this, upon the initial start-
up, is to select operation without any room sensor. The
system then operates using the outdoor temperature
reading and the property’s heating curve only.
During the adjustment period it is important
that:
• the night reduction function is not selected.
• all thermostat valves on the radiators be fully
opened. (This is to nd the lowest curve for the
most economical use of the heat pump).
• the outdoor temperature is not higher than
+5 °C.
• the radiator system is operational and correctly
adjusted between different circuits.

11
Adjusting the heating curve
The method described below can be used to adjust the
heating curve correctly.
Adjustment if it is too cold indoors:
• If the outdoor temperature is lower than 0 degrees:
Increase the Inclination value by a couple of degrees.
Wait 24 hours to see if any further adjustment is
required.
• If the outdoor temperature is higher than 0 degrees:
Increase the Adjustment value by a couple of
degrees. Wait 24 hours to see if any further
adjustment is required.
Adjustment if it is too warm indoors:
• If the outdoor temperature is lower than 0 degrees:
Decrease the Inclination value by a couple of
degrees.
Wait 24 hours to see if any further adjustment is
required.
• If the outdoor temperature is higher than 0 degrees:
Decrease the Adjustment value by a couple of
degrees.
Wait 24 hours to see if any further adjustment is
required.
iThe set heating curve always takes priority. The room sensor can only increase or decrease the heat
beyond the set heating curve to a certain extent. Where operating without a room sensor, the selected
heating curve determines the ow temperature supplied to the radiators.
Appropriate Default Values
During installation you can seldom achieve a precise
setting for the heating curve instantly. In this case, the
values given below may provide a good starting point.
Radiators with small heat-emission surfaces require a
higher primary ow temperature. You can adjust the
gradient (heating curve gradient) for your heating system
under the "Installer / Settings / Radiator system" menu.
Recommended values are:
Floor heating only: Inclination 35
Low temperature system: Inclination 40
(well insulated houses)
Normal temperature system: Inclination 50
(factory setting)
High temperature system: Inclination 60
(older houses, small radiators, poorly insulated)

12
Examples of Heating Curves
You can see in the diagram below how the heating curve
changes with different Inclination settings. The gradient
of the curve shows the temperatures that the radiators
require at different outdoor temperatures.
Primary Flow Temperature
Primary Flow Temperature
Primary Flow Temperature
Outside Temperature
Outside Temperature
Heating o, out
Outside Temperature
Adjustment
The curve can be parallel displaced (adjusted) by the
desired number of degrees to adapt to different systems/
houses.
An example
Inclination 60 °C
Adjustment 0 °C
In this example, the maximum outgoing primary ow
temperature is set at 55 °C.
The minimum permitted primary ow temperature is
27 °C (e.g. summer-time basement heating or the oor
circuits in a bathroom).
Inclination 50°C
Adjustment +5°C
Inclination 50°C
Adjustment 0°C
iIf the values set are too low, this may mean that the desired room temperature is not being reached.
You then need to adjust the heating curve, as necessary, following the method shown above.
Heating o, out
Curve Inclination
The inclination value which is set is the primary ow
temperature when the outside temperature is –15 °C.

13
ºC
ºC
Summer season
All properties have internal heat gains (lamps, oven,
body heat, etc.), which means that the heating can be
switched off when the outdoor temperature is lower than
the desired room temperature. The better insulated the
house is, the earlier the heating from the heat pump can
be switched off.
The example shows the product set at the default value of
18°C. This value, "Heating off, outside", can be changed
in the "Installer / Settings / Heat circuit" menu.
In systems with a radiator pump, the radiator pump
stops when the heat is switched off. The heating starts up
automatically when it is required again.
See chapter ”Settings/Heating circuit” for information on
setting the heating mode.
Outside Temperature
Heating o, out
Primary Flow Temperature Heating
switched off
Heating up
Part of the ”Installer/Settings/Heating Circuit/Heating Circuit 1” menu.

14
16270557-1
GS 606 GS 608
CTC No. 589310001 589311001 589312001 589310002 589311002 589312002
3x400V 1x230V 3x230V 3x400V 1x230V 3x230V
kW 2.4 2.75 2.75 3.6 3.45 3.45
kW 11.5 8.25 9.75 12.7 8.95 10.45
A3.5 10.9 10.9 5.1 15.3 15.3
A17.1 38 18.09 18.6 42.5 34
kW
2.1 / 2.1 / 6.9 /
9.0 / 9.0
0.3 / 0.9 / 3.2 /
3.2 / 5.5 / 5.5
3.5 / 4.7 / 5.9 /
7.0 / 7.0 / 7.0
0.9 / 2.1 / 4.9 /
7.8 / 9.0
0.0 / 0.0 / 0.9 /
2.3 / 5.5 / 5.5
0 / 3.5 / 4.7 /
5.9 / 7.0 / 7.0
A20 50 32 20 50 35
A16.6 18.09 18.09 17.7 21.4 21.4
kW 0.3-9 0.3-5.5 1.2-7 0.3-9 0.3-5.5 1.2-7
IP X1
HP Keymark Cert. 012-
C700089
012-
C700089
- 012-
C700090
012-
C700090
-
GS 606 GS 608
l 229
bar 3.0
°C 100
°C 65
l/s 0.10 0.11
l/s 0.29 0.41
kPa 66 56
GS 606 GS 608
@B0/35 | B5/W35 | B10/W35 kW 6.04 I 6.8 I 7.54 8.29 I 9.52 I 10.9
@B0/35 | B5/W35 | B10/W35 kW 1.34 I 1.33 I 1.41 1.74 I 1.76 I 1.83
COP 2) @B0/35 | B5/W35 | B10/W35 - 4.52 I 5.11 I 5.36 4.77 I 5.4 I 5.93
Electrical data
Rated electrical data
Rated power cooling module
Rated power input
Rated current cooling module
Rated current
Max immersion heater output
@ fuse size 1)
Group fuse
Max. start current
Output range immersion heater (min-max)
Ingress Protection (IP)
Heating system
Water volume (V)
Max. operating pressure boiler (PS)
Max. temperature boiler (TS)
Max. operating temperature condenser
Flow qw minimum A7 or B0/W35, ∆t = 15K
Flow qw nominal A7 or B0/W35, ∆t = 5K
Max ext available pressure head, nom flow
Pressure drop See diagram in chapter "Pipe installation".
Operational data for heat pump
Heating capacity 2)
Power input 2)
1) Fuse size GS 606/608 3x400V: 10 A / 13 A / 16 A / 20 A / 25 A.
Fuse size GS 606/608 1x230V / 3x230V: 20 A / 25 A / 32 A / 35 A / 50 A / 63 A.
2) EN14511
5. Technical data

15
GS
mm 28
mm 22
mm 22
mm 22
GS 606 GS 608
kg 1.9
ton 3.371
bar 31
kg 285 / 256 (283 / 254: 3x400V) 283 / 254 (281 / 252: 3x400V)
mm 673 x 596 x 1876 673 x 596 x 1882
mm 1940
dB(A) 41 / 41 39 / 39
dB(A) 36 34
GS 606 GS 608
l 3.57 4.1
°C -5 / +20
bar 0.2 / 3.0
l/s 0.21 0.23
l/s 0.33 0.46
kPa 48 41
GS
l 1.7
bar 10
°C 100
GS 606 GS 608
l210 / 239 / 304 210 / 241 / 304
2.19 / 2.49 / 2.32 2.58 / 2.78 / 2.57
Other data
Refrigerant quantity (R407C, fluorinated greenhouse
gases GWP 1774)
CO2 equivalent
Interrupt value switch HT
Weight with / without packaging
Dimensions (Depth x Width x Height)
Required ceiling height
Sound power (LWA) acc. to EN 12102 @B0, W35/55
Noise pressure (LPA)1m B0/W35 (EN ISO 11203)
Brine system
Water volume (V)
Brine system min/max temp (TS)
Brine system min/max pressure (PS)
Flow qc minimum B0/W35, ∆t = 6K
Flow qc nominal B0/W35, ∆t = 3K
Pump capacity See diagram in chapter "Pipe installation".
Ext available pump pressure nominal flow
DHW system
Water volume (V)
Max operating pressure (PS)
Max operating temperature (TS)
DHW capacity (EN16147) Economic/Normal/Comfort
DHW capacity
COP/ (Tapping cycle)
No annual leakage control of the refrigerant is required.
Pipe connections
Brine circuit, ext. diam. Cu piping (flexible hose)
Heating medium, ext. diam. Cu piping
Hot water supply, ext. diam.
Cold water supply, ext. diam.

16
-5
0
5
10
15
20
10
0
20
30
40
50
60
70
tw°C
tci °C
two
twi
two
twi
T f
T re
T re
5.1 Operating range CTC GS
Operating range is based on normal operating conditions and may therefore
be different in different installations.
(tci = temperature brine in)
Primary ow temperature (two) °C
Return temperature (two) °C

17
1881
559
355
1833
631
673
517 39
55 125
106 137
52
299
442
264
298
596
Erfoderlig reshöjd: 1940mm
E
art. nr
Utgåva
Ämnes nr
Ersätter
art. nr
Ersättes av
Grupp
Produkt
Reg. nr
Benämning
Tol.system
Kontr.
Normgr.
Skala
Ritad
Material
Datum
Sign.
Distr till/Antal
Ytjämnhet RA
Godk. prod
Om ej annat angives gäller ovanstående
Denna ritning är Enertech AB's egendom. Den får ej användas till skada för företagets intressen.
Diese Zeichnung ist das Eigentum der Enertech AB und darf nicht zum Scha- den dieser Gesellschaft verwendet werden.
This drawing is the property of Enertech AB and is not to be used against the interest of this com- pany
1:20
SJ
2020-03-25
CTC GSi 608 / 612 / 616
VP
CTC GSi 600
A 589300
JJ
blad 4/4
1881
559
355
1833
631
673
517 39
55
125
106 137
52
299
442
264
298
596
Erfoderlig reshöjd: 1940mm
E
art. nr
Utgåva
Ämnes nr
Ersätter
art. nr
Ersättes av
Grupp
Produkt
Reg. nr
Benämning
Tol.system
Kontr.
Normgr.
Skala
Ritad
Material
Datum
Sign.
Distr till/Antal
Ytjämnhet RA
Godk. prod
Om ej annat angives gäller ovanstående
Denna ritning är Enertech AB's egendom. Den får ej användas till skada för företagets intressen.
Diese Zeichnung ist das Eigentum der Enertech AB und darf nicht zum Scha- den dieser Gesellschaft verwendet werden.
This drawing is the property of Enertech AB and is not to be used against the interest of this com- pany
1:20
SJ
2020-03-25
CTC GSi 608 / 612 / 616
VP
CTC GSi 600
A 589300
JJ
blad 4/4
1881
559
355
1833
631
673
517 39
55 125
106 137
52
299
442
264
298
596
Erfoderlig reshöjd: 1940mm
E
art. nr
Utgåva
Ämnes nr
Ersätter
art. nr
Ersättes av
Grupp
Produkt
Reg. nr
Benämning
Tol.system
Kontr.
Normgr.
Skala
Ritad
Material
Datum
Sign.
Distr till/Antal
Ytjämnhet RA
Godk. prod
Om ej annat angives gäller ovanstående
Denna ritning är Enertech AB's egendom. Den får ej användas till skada för företagets intressen.
Diese Zeichnung ist das Eigentum der Enertech AB und darf nicht zum Scha- den dieser Gesellschaft verwendet werden.
This drawing is the property of Enertech AB and is not to be used against the interest of this com- pany
1:20
SJ
2020-03-25
CTC GSi 608 / 612 / 616
VP
CTC GSi 600
A 589300
JJ
blad 4/4
3
5
2
6
14
1. Cold water Ø22
2. DHW Ø22
3. Return Ø22
4. Primary ow Ø22
5. Expansion connection/ Lifting sleeve
G 3/4"
6. Bleed valve connection G 1/2"
5.2 Measurements

18
16270517-1
DHW connections
The property’s DHW
connections are connected
here.
Radiator connections
The property’s heating system
is connected here.
DHW heat exchanger
The heat pump is equipped
with a stainless steel heat
exchanger.
Direct heating of hot water
minimises the risk of
legionella bacteria.
Flow heater
There is an electric heater for
additional heating here.
3-way valve
Flow conditioner.
Terminal block for sensors
The sensor terminal block is wired
internally. Outdoor sensors, room
sensors and other sensors are
connected easily here.
Display (A1)
Junction box (A5)
Module
Max. thermostat (F10)
Charge pump (G11)
Pump for the hot side
(concealed, placed behind the
electrical connection box).
Brine pump (G20)
Circuit breakers (F2)
Circuit breakers (F1)
Junction box (A2)
Brine connections
The brine is connected to the
collector here.
6. Design
The picture below shows the fundamental construction of the heat pump.
The energy in the bore hole (bedrock) or ground is drawn up by the cooling
system. The compressor then increases the temperature to a usable level.
Afterwards it releases the energy for the heating circuit and DHW.
Circulation pump, DHW
Charge pump (G5) for DHW
out temp.

19
16270558-1
7. Parameter list
Factory setting
Heating circuit
Program Economy -
Room temp change °C -2.0
O delay, min 30
Program Comfort -
Room temp change °C 2.0
O delay, min 30
Max primary ow °C 60
Min primary ow °C O
Heating, mode Auto
Heating o, out °C 18
Heating o, time (min) 120
Night reduction down to °C 5
Room temp. reduced, Night red °C -2
Room temp. reduced, Holiday °C -2
Prim. ow reduced, Night red °C -3
Prim. ow reduced, Holiday °C -3
Alarm room temp °C 5
SmartGrid Low Price °C O
SmartGrid Overcapacity °C O
SmartGrid Blocking O
Max time heating (min) 20
Charge pump % 60*
Drying period mode O
Drying period temp °C 25
Drying period mode O
Heat pump
Compressor Blocked
Brine pump Auto
Compressor stop at brine °C -5
Tari HP No
SmartGrid Block. HP No
Start at degree minute -60
Max rps 100
Passive cooling brine pump On On
Defrost heating temp min m 10
Defrost heating temp max m 10
Defrost heating temp min °C 10
Defrost heating temp max °C -10
Factory setting
Electric heater
Max el. heater kW 5.8*
Max el. heater DHW kW 0.0*
Start at degree minute -500
Di step, degree minute -50
Main fuse A 20
Conv. factor current sensor 1
Tari EL No
SmartGrid Block. immersion No
DHW
DHW program Economy
Normal
Comfort
Start/stop di. upper °C 5
Max time DHW (min) 30
Charge pump % 90
SmartGrid Blocking °C O
SmartGrid Low Price °C O
SmartGrid Overcapacity °C O
SmartGrid Overcapacity Block. HP No
Run time DHW circ. (min) 4
Time DHW circ. (min) 15
Time ExtraDHW Remote Contr. 0.0
HC2 Mixing valve close 120
External heat source (EHS)
Charge start °C 70
Stop di (°C) 5
SmartGrid block cap. No
Di thermostat function
Charge start di temp °C 7
Charge stop di temp °C 3
Charge temperature °C 60
Cooling
Room temp. cooling °C 25.0
SmartGrid Low Price °C O
SmartGrid Overcapacity °C O
Ext. block cooling O
Block cooling schedule
Communication
Ethernet -
BMS -
El. prices
Price control No
*The value varies depending on the heat pump model, see
chapter ”Electrical installation”.

20
16270520-1
1
4
2
3
8. Pipe installation
The installation must be carried out in accordance with the applicable
standards. The product must be connected to an expansion vessel in
an open or closed system. Do not forget to ush the heating circuit
clean before connecting. Apply all the installation settings based on the
description in the section entitled "First start".
In order to adjust the pressure in the expansion vessel and check the pipe
ttings before the rst start, the front needs to be dismantled.
1. Remove magnetic strip.
2. Loosen the two screws on top.
3. Fold out and set the front to the side.
4. Bear in mind that the cable to the display on the front is sensitive to
damage.
Dirt lter for tap water
Safety valve
Automatic
bleeder
Manometer
Solenoid lter ball valve