Danfoss DSE FLEX Fact sheet

Fact Sheet

DSE FLEX

Compact substation, HE 560 kW, DHW 590 kW

Application

New generation substation is suitable
for the already proven flexible, efficient
and economical infrastructure of a low
carbon city, a District Heating network.
It is a an exclusive solution designed
to optimally fulfil specific requests and
stringent requirements for district heat­ing. By use of the Danfoss dimensioning
program you can find out if the applica­tion you need fits DSE FLEX.

Construction

DSE FLEX is a compact substation plat­form designed for indirect district heat­ing with up to 3 circuits with possibility
to make combinations between mod­ules if more circuits are required. The
new generation substation is designed
to be floor mounted, is keeps the robust­ness and friendly / appealing outlook of
the old product with the advantage of a
lighter profile, smaller size and designed
for a faster and safer transport. DSE FLEX
usually does not exceed when delivered

1.5m height. However if the situation
requires the substation height can be re­duced to 1.2m. (See the Hauling instruc­tions). DSE FLEX is designed always with
the HE heat exchanger and circuit on the
left side and the DHW heat exchanger
an circuit on the right side when facing
the substation. Piping can be prepared

in the room to fit this construction
before the substation is delivered. The
reduced size of the base frame and
layout offers DSE FLEX the smallest foot
print in it’s product class. Most of the
2 circuit variants are not larger then 1
Euro Pallet. The compact size does not
minimize the access to key service com­ponents. The connections are very low
and orientated upwards, making it easy
to connect the substation in all direc­tions. The electrical panel is mounted
always on the right side when facing
the substation. The bracket of the
electrical panel is adjustable 90 deg
in rotation and in vertical direction
up to 500 mm. The substation piping
construction is realized with automatic
welding machines to ensure the high­est welding quality, the quality of this
product is further more ensured by the
GGG40.3 casted parts on Heating and
CC752S casted parts on Domestic Hot
Water. On request the substation can
be delivered with full insulation PUR.

Equipment

Danfoss substation is equipped with
various high quality components pro­duced by Danfoss. They ensure high
comfort, high quality performance
during operation and energy saving.

FEATURES AND BENEFITS

• Compact size for an easy
transport and installation

• The adjustable feet are from
construction inside the profile

• Hauling instructions for a faster
and safer transport

• The height of the connections is very low

• Electronic controller for heating
and domestic hot water systems
with access to ECL Portal

• Advanced gasket system primary side

• Fast and reliable delivery

• Substation with high efficiency
brazed plate heat exchanger with
the new microplate technology

• Easy access to key service components

• Danfoss substations and heat exchangers
are manufactured according to
European Pressure Directive PED

The components are tested and
approved especially for DEN appli­cations. All Danfoss components in
control loop are tuned together so the
optimum performance is guaranteed.
We mention ECL DH controller which
gives access to an online portal, a full
range of Microplate Heat Exchanger
that thanks to the unique plate design,
reduces pressure loss up to 35%, the
Danfoss pressure balanced control
valves VM and the DHW control prov­en solution AVQM. DSE FLEX means
flexible for your application, that is
why we allow also other components
inside this substation with out mini­mizing the construction and installa­tion advantages.

Information needed
for a quotation

Heat capacities
Temperature program
Permissible pressure losses in the
heat exchangers / substation
Primary pressure difference available
Pressure losses in secondary circuits
Flow-through hot water circulation
Other information about other
required components.

heating.danfoss.com

CIRCUIT DIAGRAM – EXAMPLE

Electric box

TE

750 753

2B

95

26

151

35

34

A

3

1

720

443

A

182

181

174

175

445

488

171 167

474

472 470 468

PI

420419

811 812 814

26 Control valve HE
34 Drain valve
35 Temperature sensor
95 Control valve DHW
150,151 Ball valve
153 Strainer
164 Balancing valve
167 Pump
171 Drain valve

465

430

423

411

164

150

153

815

151

PS

813

PI

174 Thermometer
175 Temperature sensor
181 Temperature sensor
182 Thermometer
411 Ball valve
419 Pressure measurement
420 Safety valve
423 Check valve
430 Ball valve
443 Temperature sensor
445 Thermometer
465 Ball valve
468 Check valve
470 Pump
472 Balancing valve
474 Thermometer
488 Temperature sensor
750 Electronic controller
753 Outdoor sensor
811 Pressure transmiter
812 Pressure measurement
813, 814 Safety valve
815 Expansion valve
820 Safety valve

Technical paremeters
Primary side

Maximum temperature: 135 °C
Nominal pressure: PN 16
Diameter: DN 25 / 50

Heating

Maximum temperature: 90 °C
Nominal pressure: PN 6
Diameter: DN 25 / 65

Domestic Hot Water

Maximum temperature: 90 °C
Nominal pressure: PN 10

(1)

(6)

(7)

B

(3)

(5)

Weight (incl. packing)

1-circuit station: max. 164 kg
2-circuit station: max. 210 kg
3-circuit station: max. 322 kg

Connections:

1. District Heating Supply

2. District Heating Return

(4)

3. Domestic Hot Water

4. Domestic Cold Water

5. Circulation

6. Heating Supply

(2)

7. Heating Return

Diameter: DN 25 / 50

Max dimensions (mm)

Width / Height / Depth (1F): 1200 / 1500 / 650 mm
Width / Height / Depth (2F): 1500 / 1500 / 650 mm
Width / Height / Depth (3F): 2000 / 1500 / 650 mm

C A2

CAPACITY, WEIGHT AND DIMENSIONS

Capacity [kW] Pipe diameter External dimensions (max) Weight

Heating 1

115 -4 3/

40 -70

Heating 2

115 -6 3/

60-80

DHW

70-20/

10-58

Heating 1

[DN]

Heating 2

[DN]

Cold/
warm
water

[DN]

60 40 70 25 25 25 15 900 1000 1600 1300 500 54 71 99

95 60 100 25 25 25 15 900 1100 1600 1300 500 59 77 109
120 80 150 32 32 25 15 900 1150 1700 1300 500 65 83 119
150 100 195 32 32 32 20 900 1150 1700 1300 500 70 88 127
190 125 245 40 40 32 20 950 1200 1750 1300 610 87 110 170
235 160 300 40 40 40 25 950 1200 1750 1300 610 102 129 199
295 200 380 50 50 40 25 1150 1400 1900 1400 650 110 140 215
370 245 395 50 50 50 25 1150 1400 1900 1400 650 141 180 276
560 410 590 65 65 50 32 1200 1500 2000 1500 650 164 210 322

These are only few examples of all the possible combinations. Depending on the customer requirements, type of heat exchangers, application, DN combinations, etc. the dimensions may vary.
Depth dimension C is considered for 2 and 3 circuit stations. Height dimension B is considered with the electrical box in the minimum height position and the heating pump on the return line.
Maximum capacity is determined by temperature, allowable pressure drops and local regulations.

DHW
circu­lation

[DN]

Length

(1 circuit)

[mm]

Length

(A2)

[mm]

Length

(3 circuit)

[mm]

Height

(B)

[mm]

Depth

(C)

[mm]

Weight

1 circuit

[kg]

Weight

2 circuits

[kg]

Weight

3 circuits

[kg]

© Danfoss | DHS-SMT/ PL | 2018 .02

VL.JV.F3.02