CTC Union EcoTank 300 Manual

162 105 39-2 2016-04-25
IMPORTANT
READ CAREFULLY BEFORE USE
KEEP FOR FUTURE REFERENCE
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Installation and Maintenance Manual
CTC EcoTank 300/310

Installation and Maintenance Manual
CTC EcoTank 300/310
162 105 39-2 2016-04-25

4
CTC EcoTank 300
General Information
General Information
Table of Contents
GENERAL INFORMATION
1. Technical data______________________________________________________ 5
2. Safety Instructions ______________________________________________ 6
3. General_________________________________________________________________ 6
3.1 Cross-section__________________________________________________ 6
3.2 Important to remember!____________________________________ 7
3.3 Delivery for EcoTank 300 includes ______________________ 7
4. Inspection and maintenance_______________________________ 8
4.1 Filling _____________________________________________________________ 8
4.2 Draining _________________________________________________________ 8
4.3 Troubleshooting ______________________________________________ 8
5. For installers ________________________________________________________ 9
5.1 Schematic diagram of pipe connections______________ 9
6. Installation__________________________________________________________ 10
7. Recycling ___________________________________________________________ 11
Enertech AB reserves the right to make changes and correct any printing errors.

5
CTC EcoTank 300
General Information
General Information
1893
1747
608
673
1837
265
540
572
22 22
365
445
596
1893
1747
608
673
1837
265
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572
22 22
365
445
596
509
567
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35
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Ändr. meddel. Datum Nr Ändring Ändr. av Kontr. av
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
1:10
blad 1/1
1. Technical data
CTC EcoTank 300 CTC EcoTank 310
Net weight 138 kg 128 kg
Volume 318 l 318 l
Max. operating pressure 3.0 bar / 0.3 MPa 3.0 bar / 0.3 MPa
Max. operating temperature 110ºC 110ºC
Expansion tank 20 l (= 6% of tank volume) ---
Connection pipes 22 mm 35 mm
CTC EcoTank 300 CTC EcoTank 310

6
CTC EcoTank 300
General Information
Expansion tank*
Safety valve*
Baffles
Polyurethane insulation
Connection pipes
Sensor pipes
Draining/filling
valve
2. Safety Instructions
* Applies to the CTC EcoTank 300 only
3. General
CTC EcoTank is a buffer tank available in two versions: CTCEcoTank300 with a 22 mm connection and CTC
EcoTank 310 with a 35 mm connection.
Both versions have a volume of 318 l and inbuilt baffles for optimal performance. Polyurethane insulation is used to
minimise heat loss. The product is compatible with the other products in the CTC range.
• CTC EcoTank 300 is intended to be connected to a CTCEcoZenithi250 or CTCEcoHeat and is equipped with
a built-in expansion tank.
• The CTC EcoTank 310 has larger size connections and is intended for larger systems where it is used as a
buffer tank during heat pump operation; please note that it is supplied without an expansion tank.
3.1 Cross-section
This appliance is not intended for use by persons ( including children ) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning
use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.

7CTC EcoTank 300
General Information
2
1
3
6
4
5
Designation Quantity
1 Sealing washer 2
2 Expansion tank 10 litre (incl. pipe connections) 0.5 Bar 2
3 Safety valve 2.5 bar 1
4 Pipe connection to expansion tank 1
5 Non-return valve 2
6 T-connection 1
3.2 Important to remember!
Especially check the following points at delivery and installation:
• CTC EcoTank shall be transported and stored in its original packaging.
• Remove the packaging and check before installation that the product
has not been damaged in transit. Report any transport damage to the
carrier.
• Before installation, check that the delivery is complete (See “Delivery
includes” section).
3.3 Delivery for EcoTank 300 includes
CTC EcoTank 310 is supplied without this bipack.

8
CTC EcoTank 300
General Information
4. Inspection and
maintenance
The safety valve fitted must be checked regularly (about four times per year).
To check, turn the safety valve knob anti-clockwise until water runs from the
waste water pipe. If no water runs, there is a fault in the valve and it must be
replaced. Some water always drains from the safety valve during the heating
up of a new installed system. The safety valve is not supplied with CTC
EcoTank 310.
4.1 Filling
Fill EcoTank 300/310 according to the following:
1. Connect the water supply to the draining/filling valve.
2. Start filling (turn the safety valve in equal stages to release the
air from the system).
3. When water begins to run from the safety valve pipe, the tank
is full.
4. Ensure that the safety valve is closed.
5. Start the circulation pump.
6. Continue to fill with water until the safety valve releases.
7. Bleed the radiators.
8. Repeat stages 6 and 7 until the system is free of air.
4.2 Draining
Drain EcoTank 300/310 according to the following:
1. Turn off the circulation pump.
2. Close the valves to the radiator system (if the whole radiator
system is not to be drained).
3. Connect the draining pipe to the draining/filling valve.
4. Open the draining valve. Drain water to decrease the pressure
in the system.
5. Open the safety valve for venting to drain the residual water
from the tank and system.
4.3 Troubleshooting
If the sound of lapping water is heard from the tank, the system has not
been vented sufficiently. Remedy this by repeating stages 6 and 7 under
the heading “Filling”.
!Beware of possible
spraying water.

9
CTC EcoTank 300
General Information
5. For installers
This section is intended to assist the installation technician to install the CTC
EcoTank so that it performs in the way requested by the property owner.
Bear in mind the following:
• CTC EcoTank shall be transported and stored in its original packaging.
• Remove the packaging and check before installation that the product has
not been damaged in transit. Report any transport damage to the carrier.
• Before installation, check that the delivery is complete (See “Delivery
includes” section).
5.1 Schematic diagram of pipe
connections
!The product should
be stored and
transported in an
upright position.
CTC EcoTank 300 CTC EcoTank 310

10
CTC EcoTank 300
General Information
6. Installation
The installation must be carried out in accordance with current MCS
standards. Refer to MIS 3005 and associated building regs Part L,F & G.
CTC EcoTank may only be installed upright. Internal support sleeves shall be
used inside the copper tubes at the connections. A waste water pipe shall
be installed from the safety valve to a suitably placed drain. The pipe shall
have the same dimensions as the safety valve and shall fall over its entire
length to avoid water remaining in it, and it shall not be exposed to minus
temperatures. The pipe’s outlet shall be visible.
For CTC EcoTank 300
Connect the expansion tank and the tank using the T-connection and the
safety valve according to the illustration below:
Safety valve, waste
water pipe connection
backwards
T-connection
Tank connection sleeve
Pipe union nut with
sealing washer

11
CTC EcoTank 300
General Information
7. Recycling
2
1
1
1. Combustible
2. Mixed scrap
3. Landfill
4. Elbow connector, mixed scrap
5. Framework, mixed scrap
6. Brass scrap or mixed scrap
2
2
23
4
5
6
2

162 105 39-2 2016-04-25
Enertech AB. P.O Box 309 SE-341 26 Ljungby Sweden.
www.ctc.se, www.ctc-heating.com