CTC Union EcoComfort Manuel
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162 305 54-1 2019-11–12
Installation and Maintenance Manual
CTC EcoComfort
Passive cooling unit
IMPORTANT
READ CAREFULLY BEFORE USE
KEEP FOR FUTURE REFERENCE
Installation and Maintenance Manual
CTC EcoComfort
Passive cooling unit
162 305 54-1 2019-11–12
4CTC EcoComfort
Table of contents
Congratulation on buying your new product! ___________ 5
Safety instructions _____________________________ 6
Check list ______________________________________________________________________ 7
The check list must be completed by the installer.__________7
Pipe installation __________________________________________________________7
Electrical installation____________________________________________________7
Customer information (adapted to the relevant installation)7
1. Installation______________________________________________________________ 8
1.1 Scope of delivery _______________________________________________8
1.2 Important to remember!______________________________________8
1.3 Technical data____________________________________________________9
1.4 Dimensional drawing __________________________________________9
2. Schematic diagrams___________________________________________ 10
2.1 Alt. 1. Connection to the CTC controlling product,
common underfloor heating/cooling ___________________ 10
2.2 Alt. 2. Connection to the CTC controlling product,
underfloor/radiator heating and separate cooling coil
units _______________________________________________________________11
2.3 Component location_________________________________________12
3. Pipe installation___________________________________________________ 13
3.1 General___________________________________________________________13
3.2 Mounting_________________________________________________________13
3.3 Water quality, cold side _____________________________________13
3.4 Water quality, hot side_______________________________________ 13
3.5 Delivery inspection ___________________________________________13
3.6 General comment on pipe installation_________________ 13
3.7 Connection to the heating system______________________13
3.8 Connecting the diverting valve (Y60)___________________14
3.9 Non-return valve, cooling circuit_________________________15
3.10 Non-return valves, main circuit’s brine system _____15
3.11 Bleeding the cooling unit___________________________________ 15
3.12 Connection to the brine system _________________________15
3.13 Insulating the pipes __________________________________________15
3.14 Pressure drop curves for CTC EcoComfort _________16
4. Electrical connection __________________________________________ 17
4.1 Alt. 1. Connection to CTC controlling product, com-
mon underfloor heating/cooling _________________________18
4.2 Alt. 2. Connection to CTC controlling product, un-
derfloor/radiator heating and separate cooling coil
units _______________________________________________________________18
5. First start______________________________________________________________ 19
5.1 After installation _______________________________________________ 19
5.2 Start-up __________________________________________________________19
5.3 Selecting cooling function _________________________________ 19
5.4 Selecting system type/Menu settings _________________ 19
5.5 Bleeding and function test_________________________________ 19
6. Operation and maintenance ______________________________ 20
6.1 After installation _______________________________________________ 20
6.2 Periodic maintenance _______________________________________20
6.3 Breaks in operation __________________________________________ 20
6.4 Function description_________________________________________20
6.5 Function options _____________________________________________21
7. Troubleshooting and remedial action _______________ 23
7.1 Capacity data __________________________________________________24
For your own reference
Fill in the information below. It may come in useful if anything should happen.
Product: Manufacturing number:
Installer: Name:
Date: Tel. no.:
Electrical installer: Name:
Date: Tel. no.:
Enertech AB provides the information with reservation for any printing errors and subject to modification.
5CTC EcoComfort
Congratulation on buying your new product!
You have just bought a CTC EcoComfort passive
cooling unit, an accessory to the CTC controlling
product.
CTCEcoComfort is an accessory that utilises the cold in
the bore hole to cool your house during the summer. By
connecting CTCEcoComfort to the house’s underfloor
heating system (or separate fan coil units), its water
is cooled by the bedrock’s cooler collector water. The
heat in the house is taken out into the bore hole in the
bedrock.
The unit is completely pre-wired at the factory and easy
to connect to the system.
The cooling function is controlled entirely from
your controlling product on which you can set your
preferences for when and how you would like cooling.
This type of cooling is energy efficient – only circulation
pumps circulate the cool water. The capacity is,
however, slightly lower compared to so-called active
cooling where the more energy-intensive compressor
works to create coldness.
The system can be connected to underfloor heating or
separate fan coil units.
Connection to an underfloor heating system (underfloor
cooling) limits the temperature of the water circulating
in the heating system. A temperature that is too cold
can lead to condensation forming and result in serious
damage. The current room temperature should also be
considered.
Connection to separate fan coil units where the system
is insulated against condensation and condensation
collects in the fan coil unit can permit very low
temperatures.
The unit’s cooling capacity is dependent on several
factors such as the flows and the temperature of
the bore hole and house. The unit’s capacity is at its
greatest in the first part of summer, when the bore hole
is still cold after the winter’s heat extraction.
6CTC EcoComfort
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 classified as IP X1. The product must not be rinsed with water.
Never jeopardise safety by removing bolted covers, hoods or similar.
The product’s electrical systems should only be installed and serviced by a qualified
electrician.
-If the supply cord is damaged, it must be replaced by the manufacturer, its service
agent or similarly qualified persons in order to avoid a hazard.
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.
7CTC EcoComfort
Check list
The check list must be completed by the installer.
• In the event of a service, this information may be called for.
• Installation shall always be done according to the Installation and maintenance manual.
• Installation shall always be carried out in a professional manner.
• Following installation, the unit shall be inspected and checked for functionality.
The points below shall be checked off.
Pipe installation
The system has been filled, positioned and adjusted in the correct manner according to the
instructions.
The products are positioned so that they can be serviced.
Pumps, valves, etc. are dimensioned for the required flows.
The unit has been tested for leaks and tightness.
Bleeding performed (re-bleeding may be necessary).
Electrical installation
Proper wiring, performed according to current regulations.
Correct connection to the controlling product.
Customer information (adapted to the relevant installation)
Start-up with customer/installer.
Review of the cooling unit’s function.
Installation and maintenance manual supplied to the customer.
Check and filling, system.
Information on fine adjustments, settings, etc.
Information on potential operational malfunction and remedial action.
Guarantees and insurance.
Information and procedure for fault registration.
8CTC EcoComfort
1. Installation
1.1 Scope of delivery
The following items are included in the delivery of a CTC EcoComfort passive
cooling unit:
• Packaging box with impact protection
• Cooling unit fitted in enclosed box containing:
–Heat exchanger
–Circulation pump (circulates brine in the collectors)
–Mixing valve with mounted steering motor, including 2 m connection
cable
–Non-return valve
–Bleeding valve for the cold side (brine)
–Support sleeves in copper pipe connections
• Non-return valve for main brine system
• Installation and Maintenance Manual
1.2 Important to remember!
Check the following points in particular at the time of delivery and installation:
• Check before installation that the product has not been damaged in
transit. Report any transportation damage to the carrier.
• Make sure the heating system is suitable for cooling, and the type of
system (underfloor heating, fan coil units).
• Make sure the product is mounted horizontally.
• Make sure the wall is suitable for installation, and no hidden electrical
cables/pipes can be damaged during installation.
• Remember to leave a service area around the product.
• The radiator system’s water flow passes through the heat exchanger
in CTCEcoComfort. This is why the radiator system must be flushed
thoroughly before installation.
• 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.
9CTC EcoComfort
1.3 Technical data
1.4 Dimensional drawing
415
255
80 (2X)
220
227
70 (4X)
(7)
15
60
377
9090
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN MILLIMETERS
± 1
Cooling Unit
WEIGHT:
A1
SHEET 1 OF 2
SCALE:1:1
DWG NO.
TITLE:
REVISION
DO NOT SCALE DRAWING
MATERIAL:
DATE
SIGNATURE
NAME
DEBUR AND
BREAK SHARP
EDGES
FINISH:
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN MILLIMETERS
SURFACE FINISH:
TOLERANCES:
LINEAR:
ANGULAR:
Q.A
MFG
APPV'D
CHK'D
DRAWN
CTC EcoComfort passive cooling unit
Electrical data (components powered by the
CTC controlling product)
230V 1N~ 50Hz Approx. 2x2.5 m cable
from cooling unit
included for connection
to the controlling
product
IP class IP X1
Nominal power output kW 0.03
Volume (V) cold/hot side l 0.46/0.54
Max. operating pressure (PS) kPa/Bar 1/10
Min./max. operating temperature (TS) ºC +2/80
Weight excl. packaging (net) kg 11
Weight incl. packaging kg 12.5
Dimensions incl. packaging (DxWxH) mm 310x280x580
Basic dimensions excl. packaging (DxWxH) mm 220x255x410
Height incl. connections mm 470
Pipe connections (4 pcs) mm Ø22 Copper
Capacity See separate section
Non-return/throttle valve, main brine system Rp 1" Internal thread
10 CTC EcoComfort
2. Schematic diagrams
2.1 Alt. 1. Connection to the CTC controlling
product, common underfloor heating/cooling
The diagram shows schematically how CTCEcoComfort is connected to the systems; additional
equipment, such as expansion vessels, shut-off valves, safety valves, buffer tank etc., is not shown
here. The controlling product in this example is the ground source heat pump CTC GSi. In this
example (Alt.1), the diverting valve Y60 is connected to the combined heating/cooling circuit as well
as to the controlling product and CTC EcoComfort. The diverting valve is controlled by the controlling
product.
Circuit 1, combined
heating/cooling
M
2
4
5
6
1
3
7
8
10
11
12
13
15
16
17
18
20
M
19
9
Y60
Controlling
product 1. CTCEcoComfort passive cooling
unit
2. Heat exchanger
3. Bleeding valve
4. Mixing valve with motor
5. Non-return valve, cooling unit
6. Built-in circulation pump
7. Evaporation heat exchanger in the
controlling product
8. Brine pump in the controlling
product
9. Non-return/throttle valve, main
system
10. Filling equipment
11. Bore hole with collectors
12. Circulation pump
13. Primary flow sensor
14. Outgoing pipe from the controlling
product
15. Return pipe from heating system
16. To bore hole
17. From bore hole
18. Heating system
19. Diverting valve
20. Room sensor
Table des matières
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