Data sheet
ThermoClean®
Domestic water heating system with legionella growth
prevention through thermal disinfection
Description / Application The ThermoClean® system is compact and
effective solution for legionella-free domestic
water heating. The system uses the thermal
disinfection methods, whereby the reaction
temperature inside the installation is kept at
a constant temperature of 70 °C.
The ThermoClean® system is dimensioned
in such a way that the water is warranted to
remain in the reaction area of the device for
at least 5 minutes. During tap operation, the
reaction temperature of 70 °C is cooled down to
the required hot water temperature within the
system. This is not achieved by the addition of
cold water, but through an additional re-cooling
heat exchanger which cools the disinfected
water, while preheating cold water, that
simultaneous preheat the cold water.
The hot water temperature can be set at
any temperature between 50 °C and 60 °C.1
It means that the installation of a scaling
protection device on the taps is redundant if the
temperature is adjusted accordingly.
Due to the connection of the circulation into the
system a continual thermal disinfection of the
hot water is ensured.
The high quality stainless steel design of reaction
and buffer storage tank, heat exchanger and
piping is hygienically perfect, offers a maximum
in operational safety and can be universally used
in combination with the wide range of materials
used in the connected domestic water supply
network.
1
The recommended temperature is 60 °C.
Main system data:
Primary Secondary
Typ e DL / Combi
Max. operating temp. (°C) 100 (150)
Max. operating pressure (bar) 16 (25)
Working medium Circulation water DHW
2
On request
Approvals and Standards:
- DVGW3 – Working paper W 553 – Calculation for circulation systems in DHW installations,
- DVGW3 – Working paper W 551 – Technical method for prevention of legionella growth,
- DIN 1988 – Code of practice for drinking water installations (TRWI) (when related),
- DIN EN 806 – Specifications for installations inside buildings conveying water for human consumstions,
- DIN EN 1717 – Protection against pollution of potable water installations and general requirements
of devices to prevent pollution by backflow.
3
German Technical and Scientific Association for Gas and Water
© Danfoss | 2018.10 VD.KR.D6.02 | 1
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Data sheet ThermoClean®
ThermoClean®-DL
Domestic water heating system with electronic
controls, a stainless steel reaction storage tank,
charging and re-cooling brazed plate heat
exchangers as well as charging pump, shut-off
valves and complete stainless steel piping.
Ordering Explanation, ThermoClean® types
ThermoClean®-DL 200 ECL XB Type heatexchanger
Electronic controller type
Reaction tank volume (liter)
Typ e
DL – with reaction storage tank and brazed plate heat
exchangers
Combi – with combined reaction and DHW storage tank and
brazed plate heat exchangers
Domestic water heating system with charging
ThermoClean®
Typ e
200 00 4X1618 -
350 004X1619 004X1634
500 004X1620 004X1635
750 00 4X1621 004X1636
1000 004X1622 00 4X1637
130 0 004X1623 -
-DL -Combi
ThermoClean®-Combi
Domestic water heating system with electronic
controls, a combined stainless steel reaction and
domestic hot water storage tank, charging and
re-cooling brazed plate heat exchangers as well
as charging pump, shut-off valves and complete
stainless steel piping.
The ThermoClean®-Combi requires less
installation space provided adequate height in
the installation place is available.
and re-cooling system unit
Code-No.
incl. electronic controller ThermoContol
2 | VD.KR.D6.02 © Danfoss | 2018.10
Data sheet ThermoClean®
Accessories
4
ThermoClean®-DL
Domestic hot water storage tank
The ThermoClean® system must be combined
with additional domestic hot water storage
tanks to provide the required capacity for peak
consumption. The required storage tank capacity
is based on the calculated peak flow and the
length of the consumption period.
The recommendations provided overleaf for the
total storage tank capacity are based on peak
consumptions lasting 1 hour or according to
customer demands. If the consumption periods
are shorter, the storage tank capacity can be
reduced accordingly.
We recommend the utilization of the following
storage tanks:
- Stainless steel domestic hot water
storage tank series SE,
- Tank sizes: 150 ... 8000 liters,
- Optimum adaptation to requirements due
to optional combination of multiple
storage tanks.
4
accessories for separately order
Technical data
Perfor-
Typ e
-DL
-Combi
5
Performance index NL acc. to DIN 4708
6
Dependent on the additional storage tank(s)
mance
200 -
350 -
500 -
750 -
1000 -
130 0 -
350 15 .. 9 55 .. 30 91 162 0 870 .. 390 4000 1 ,111 15 60 690 .. 1170 20 56 18
500 28 .. 13 71 .. 39 119 2120 1130 .. 510 4000 1,111 2040 910 .. 1530 21 56 19
750 41 .. 21 88 .. 48 147 2620 1400 .. 630 7000 1,944 2520 1120 .. 1890 22 49 14
1000 52 .. 29 101 .. 55 168 2970 1600 .. 720 7000 1,9 44 2880 1280 .. 2160 24 49 14
Connected
index
NL
6
6
6
6
6
6
load
5
kW kW l/h l/h l/h l/s l/h l/h kPa kPa kPa
84 .. 46 140 2480 1330 .. 600 5000 1,389 2400 1070 .. 1800 24 54 19
147 .. 80 245 4440 2330 .. 1050 7500 2,083 420 0 1870 .. 3150 20 64 20
210 .. 114 350 6480 3330 . . 1500 9000 2,500 6000 2670 .. 4500 22 58 20
315 .. 171 525 9650 5000 .. 2250 12000 3,333 9000 4000 .. 6750 23 59 23
420 .. 228 700 12960 6670 .. 300 0 15000 4,167 12000 5330 .. 9000 29 65 27
546 .. 296 910 1698 0 8670 .. 3900 20000 5,556 156 00 6930 .. 11700 35 86 30
consumption
Max. power
for peak
Heating
(Hot)
water flow
= 75 °C
at ϑ
VL
Domestic hot water
capacities
Permanent
capacity
Peak
capacity
Charge
flow
total
Circ.
flow
(max.)
Heating
water
Resistance
DHW
(max.)
Circ.
(max.)
VD.KR.D6.02 | 3© Danfoss | 2018.10
Data sheet ThermoClean®
Design and function
CPU
ECD
1 3 2 47
45
DTA
46
reaction tank/vessel
RTA
HEX charging/load
HEL
HEX cooling
HEC
charging pump/load
LPU
circulation pump (on site/by customer)
CPU
safety valve
SFV
control valve electrical
CVE
electronic controller DHW
ECD
control valve electrical domestic
CVD
domestic buffer tank (accessory)
DTA
shut off device
balancing valve
sensor (direct, cable/universal, surface)
RTA
SFV
LPU
HEL
4
CVE
HEC
domestic water cold
1)
domestic water hot
2)
circulation
3)
heating supply
4)
heating return
5)
to domestic buffer tank (stainless steel) top
45)
from domestic buffer tank (stainless steel)
46)
CVD
below
from domestic buffer tank
47)
thermometer
drain / air vent (on site / by customer)
check valve
sampling valve
The heat exchanger brings the system volume to
the disinfection temperature of 70 °C.
A temperature sensor at the exit of the heat
exchanger monitors this temperature and
regulates the application of heat energy
accordingly. The system is dimensioned to
ensure that the domestic hot water remains in
the reaction area for at least 4 minutes to warrant
the extermination of the legionella bacteria.
The entire system volume is maintained at the
defined disinfection temperature. Only when
the water is tapped, the required quantity of
water is cooled down to the demanded network
temperature (50 ... 60 °C) while the new cold
water that is being added is preheated.
Temperature fluctuations are balanced out by
the mixing valve, so that the precise degree of
water temperature indicated is definitely being
maintained. Proven control technology ensures
that the domestic hot water network is not
heated up during breaks in tapping.
If the consumption volume during peak times
exceeds the charge flow of the system, the
available storage tank volume is tapped. The
optionally available over-tapping protection
ensures that during unexpected functions (e.g.
peak tapping continues for a period exceeding
the determined consumption period) the cold
water supply is suspended until sufficient
thermally disinfected domestic water is once
again available through the charging process via
the reaction tank.
The circulation water from the network enters
the system, is once again heated up to 70 °C by
the charge heat exchanger and consequently
incorporated into the thermal disinfection
process continually.
Sizing For dimensioning and selection of ThermoClean®
system please contact with Danfoss local sales
representative.
4 | VD.KR.D6.02 © Danfoss | 2018.10
Data sheet ThermoClean®
Mounting ThermoClean®-DL
After setting up, connect reaction and DHW
storage tank, charge/re-cooling system unit
via the pre-installed connections. Next the
heating and domestic water connections, mains
connections. Commissioning as described in the
installation and operating instructions.
ThermoClean®-Combi
After setting up, connect combination and DHW
storage tank, charge/re-cooling system via the
pre-installed connections. Next the heating
and domestic hot water connections, mains
connections. Commissioning as described in the
installation and operating instructions.
Dimensions
ThermoClean®-DL ThermoClean®-Combi
B1
B2
1 4 3 2
4
1
47
3 2
47
H2
T2
T1
H1
25
D
d
45
46
H1
25
45
D
d
46
B1
4
2 3
1
H2
B2
2
4
3
T2
T1
1
Typ e
H1 d D
mm mm mm mm mm mm mm mm G/Rp G/Rp DN G/Rp kg kg kg
200 1600
350 2045 1795 1950 G 1¾” G 1½” 40 G 1¾” 90 160 500 2090 600 800 18 45 2060 825
-DL
750 2240 750
1000 2525 800
130 0 2610 900
500 700
9
950 1970 2365 110 0 990 G 23/8” 155 230 -
9
1000 2220 2570 120 0 965
9
110 0 2245 2720 1250 995
350 1825 550 750
-Combi
500 1865 650 850 1630 25/20 90 20
750 2145 750 950 1780
1000 2145 85091050 190 0 780 195
7
For ThermoClean® type -DL incl. charging unit
8
Mounted on the ThermoClean®-Combi’s tank
9
min. door width; when needed components has to demounted
10
max. width of frame
11
raw weight (without insulation/package)
All connection axis measures are approximate and have a tolerance of +/- 15 mm.
H2
approx. B1approx. B2approx. T1approx. T2approx.
173 0 1950
1000
725 600
1530
9
1800
800
780
Connections Weight
3
G 2
Rp 2 ½”
-
Storage
tank
/8”
210 250 -
145
10
1, 2 3 4, 5 45-47
G 1½” G 1¼” 25/20 G 1½” 70 14 0 -
9
650
920
9
G 1¾”
G 23/8”
Rp 2”
Rp 2½”
Rp 2 ½”
G 1½” G 1¼”
50/40
65/50 235 300 -
20
G 1¾” G 1½” 32/20
11
Re-cooli ng
unit
Charging
90 170 -
70
100
105 25
unit
8
15
VD.KR.D6.02 | 5© Danfoss | 2018.10
Data sheet ThermoClean®
© Danfoss | DHS-SMTL/PL | 2018.106 | VD.KR.D6.02
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