Danfoss ThermoDual- FLS-COMBI Data sheet
Data sheet
ThermoDual®- FLS-COMBI
General description/
Application
Maximum operating
parameters
Domestic hot water provision by instantaneous heater
is an efficient and hygienic optimal solution. Hot water
is not stored and will be produced only on request. Thus,
low temperatures in drinking water can be reduced to
a necessary minimum.
Habitats for bacteria,such as legionella are virtually nonexistent. If the conditions for connection of thes e systems
are given (sufficiently high capacity o n heating side to cover
peak load) or buffer tanks is present, th ese systems can be
used unrestric ted. Significant advanta ges of the system are:
• no storage of drinking water
• efficient cooling of the primary media
• optimum use of energy
• independent choice of different energy sources
• at any time sufficiently high domestic hot water
temperature, that fulfils all hygienic requirements
• low space requirement
• lime scale is largely avoided
Primary
Maximum permissible supply temperature, primary 90°C
Maximum permissible operating pressure, primary 10 bar(g)
Rated pressure, primary PN10
Secondary
Maximum permissible temperature, secondary 90°C
Maximum permissible operating pressure, secondary 10 bar(g)
Minimum required pressure (static), water supply 1,0 bar(g)
Rated pressure, secondary PN10
Mains power supply / maximum power consumption 230V AC / 4,0 A
Materials
Code numbers
© Danfoss | 2019.02
Pipes, fittings, flanges, valves (domestic side)
ditto (heating side) P235GH-TC1, CuSn5Pb5Zn5-C (RG-5), ST37.0
Heat exchanger 1.4404 with Cu solder
Insulation Hardcover EPP λ=0.036 W/mK (100%ENEV)
Capacity
[kW]
70 00 4X1538
130 00 4X1539
175 00 4X154 0
245 00 4X1541
Code no.
Pump control
(PWM control signal)
1.4571, bronze or brass as per DIN EN 1982,
also considering DIN 50930-06 and UBA guidelines
Note:
Version without own electronic controller and
terminal block for devices on request.
VD.LZ.H2.02 | 1
Data sheet ThermoDual®- FLS-COMBI
Circuit diagram
Technical data
HEL Heat exchanger
HPU Heating pump
CPU Circulation pump
SFV Safety valve
ECD Electronic domestic hot water controller (ECL310 / P318.10)
1 Domestic water (cold)
2 Domestic hot water (hot network)
3 Circulation (inlet)
4 Heating supply
5 Heating return
TC Sensors (general: direc t , immersion, surface)
“S2”: with designation as for controller
Pump
dpr
[kPa]
FR
DW
(10 ->60 °C)
[m3/h]
DW
dp
[kPa]
FR
C
(55 ->60°C )
[m3/h]
C
dpr*
[kPa]
Typ
ThermoDual®
Capacity
[kW]
Shut-off valve
Non-return valve
Check valve
F1: Flow sensor
p
FR
(70 ->25° C)
[m3/h]
FLS-COMBI 70 70 1,34 55 1,2 15 1,0 20
FL S - COMBI 130 130 2,5 35 2,23 25 1, 5 35
FL S- COM BI 175 175 3,35 25 3,0 24 2,0 25
FLS-COMBI 245 245 4,47 55 4,20 38 2,0 .. 3,0 60 .. 32
FR: Flow rate p: primary dpr: Remaining pump head dp: Pressure loss DW: Domestic water C: Circulation * (maximal possible)
2 | © Danfoss | 2019.02
VD.LZ.H2.02
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