Danfoss DSA WALL Data sheet

Data Sheet

DSA WALL – Wall Mounted Station

General description and
application

Maximum operating
parameters

Danfoss district heating substations provide the
link between district heating suppliers and cus­tomer installations. They contain all the necessary
equipment to adjust the heat supplied for the
needs of the object premises as specied in the
heating supply contract. In this respect they must
comply with all applicable standards and with the
supplier’s technical connec tion conditions. Indirect
connections (in which district heating and in -house
systems are hydraulically isolated) incorporate
components that separate the systems (heat
exchanger), limit the ow volume to that specied
in the contract, regulate the secondary supply tem­perature and measure energy consumption.

The DSA WALL is designed for use in high-param­eter district heating network s. It is suitable for heat­ing single and multifamily homes, and commercial
and industrial buildings. It oers an alternative
solution to oil or gas boilers. The DSA WALL is pre­pared for heating, domestic hot water and oor
heating applications. Its wall-mounted construc­tion allows for the space saving needed for instal­lation and servicing.

Primary

Maximum permissible supply temperature, primary 130 °C
Maximum permissible operating pressure, primary 14,4 ba r(g)
Rated pressure, primary PN16

Secondary Heating

Maximum permissible temperature, secondary 100 °C
Maximum permissible operating pressure, secondary 6 bar(g)
Minimum required pressure (static), water supply 1.0 bar(g)

Secondary Domestic Hot Water

Maximum permissible temperature, secondary 90°C
Maximum permissible operating pressure, secondary 10 bar(g)
Minimum required pressure (static), water supply 1.0 bar(g)

Materials

DEN -SMT/ PL

Pipes, ttings, anges, valves (primary side) P235GH, EN-JL 1040 (GG25), CuSn5Pb5Zn5-C (RG-5)
Pipes, ttings, anges, valves (heating side) P235GH, EN-JL 1040 (GG25), CuSn5Pb5Zn5-C (RG-5)
Pipes, ttings, anges, valves (DHW side) 1.4301, 1.4404, brass (DZR type), bronze
Heat exchanger 1.4404 with Cu solder
Insulation EPP foam λ=0.037 W/mK (heat exchanger)

PU foam λ=0.029 W/mK (primary piping)

VD.IQ.P1.02 © Danfoss 11/2014

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Data Sheet DSA WALL – Wall Mounted Station

Circuit diagram

Electric box

TE
2B

750

M1 Combi valve
M2 Control valve
49 Drain valve
S4 Temperature sensor
380 Thermometer
387 Shut o valve
345 Supply valve
762 Pump valve
769 Thermometer
P1 Circulation pump
S6 Temperature sensor
767 Shut o valve
S3 Temperature sensor
187 Multipoint pressure measurment
191,165 Thermometer
192,164 Shut o valve
169 Strain er
P2 Heating pump
S2 Temperature sensor
175 D r ain
721 Relling valve

S1

DN20

M

M1

8

DN32 DN32

DN25

M

9

49 M2

8 Primary Supply

9 Primary Return

4 Heating Supply

5 Heating Return

2 Domestic Hot Water

1 Domestic Cold Water

3 Circulation

DHW

HE

TE

S3

175

A 721

TE

S4 380 A

TE

S2

TI

TE

S6

767

PI

187

169

P2

2

387

DN25

1

345

TI

769P1

DN20

762

TI

191 192

TI

3

4

5

165

164

Technical data

2

Typ e

HE/DHW

90 / 80
120 / 80
150 / 80
90 / 120

120 / 120
150 / 120
145 / 120

1) Reference temperatures: HE – 100/63/60/80 °C, DHW – 65/22/10/55 °C. Pressure drop: HE – 20/20 kPa, DHW – 20/20 kPa

2) Reference temperatures: HE – 100/63/60/80 °C, DHW – 65/22/10/55 °C. Pressure drop: HE – 30/15 kPa, DHW – 20/20 kPa

VD.IQ.P1.02 © Danfoss 11/2014

VM2+AMV10

1

1

1

1

1

1

2

Control valve Heat exchanger Pump

HE

DHW

AVQM+AMV30

HE DHW HE DHW

DN15/1.6 DN15/4.0/0.2 XB 37L-1-26 XB37H -1-26
DN15/ 2.5 DN15/4.0/0.2 XB 37L-1- 40 XB37H -1-26
DN15/ 2.5 DN15/4.0/0.2 XB 37L-1- 60 XB37H -1-26
DN15/1.6 DN20/6.3/0.2 XB37 L-1-2 6 XB37H-1-36
DN15/ 2.5 DN20/6.3/0.2 X B 37L-1- 40 XB37H-1-36
DN15/ 2.5 DN20/6.3/0.2 X B 37L-1- 60 XB37H-1-36
DN15/ 2.5 DN20/6.3/0.2 X B37L-1-80 XB37H-1-36

Magna 3 25-100

UPS 25-60 N

DEN -SMT/ PL

Data Sheet DSA WALL – Wall Mounted Station

Function The DSA WALL platform can be used for various

applications such as heating, domestic hot water
and / or oor heating. Due to its modular con­struction and exibility, it is possible to deliver
a1-, 2- or 3-circuit station based on customer
request and the needed application(s). The wall­mounted construction allows easy access to all
components for maintenance and servicing pur­poses. Standard assembly support signicantly
reduces the time needed to place the substation
on the wall. An additional frame (accessory list)
allows for placing the substation in the centre of
the substation room.

Dimensions

Typ e

HE / DHW

DH (8 & 9) HE (4 & 5) DHW Height Width Depth

Pipe diameter

90 / 80 kW DN25 DN32 DN25 69
120 / 80 kW DN32 DN32 DN25 73
150 / 80 kW DN32 DN32 DN25 77
90 / 120 kW DN25 DN32 DN25 81

120 / 120 kW DN32 DN32 DN25 85
150 / 120 kW DN32 DN32 DN25 89
145 / 120 kW DN32 DN32 DN25 91

Heat transfer bet ween the district heating network
and the building installation is achieved by way of
a micro plate heat exchanger, which ensures better
heat transfer, higher energy eciency and reduced
pressure loss. In addition to the standard controller
functions, the ECL310 oers easy remote access via
an internet page with data logging possibilities
and energy optimisation functions such as weather
compensation and auto-tuning (adaptive settings
for domestic hot water parameters).

The primary modules allow for the upgrading of
the compact module with an additional dierential
pressure controller, measuring devices, strainers
or a heat meter to full all of the supplier’s techni­cal connection requirements.

Weight

External dimension

[kg]

118 5 mm 800 mm 575 mm

420

446

118 5

120

208
280

575

1 2 4

8

9

3

0 40

0

246 674

800

5

8

479

820

251

9

800

120

8 Primary Supply

9 Primary Return

4 Heating Supply

5 Heating Return

2 Domestic Hot Water

1 Domestic Cold Water

3 Circulation

DEN -SMT/ PL

VD.IQ.P1.02 © Danfoss 11/2014

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Data Sheet DSA WALL – Wall Mounted Station

Accessories Primary module may include:

- Shut-o valves

- Dierential pressure regulator

- Strainer

- Energy meter

- Temperature measurement

- Pressure measurement
Frame for stand-alone assembly, allowing for

placement of the DSA WALL in the centre of the
technical room.

Conguration The DSA WALL’s exibility of construction makes

it possible to order a substation with additional
components and dierent capacities depending
on requested features and requirements, such as:

Primary side

- Shut-o valves

- Temperature sensors

- Drain valves
Heating

- Additional temperature sensors

- Thermostat

- Pressure measurement

- Temperature maesurement

- Drain valve
Domestic hot water

- Additional temperature sensors

- Thermostat

- Pressure measurement

- Temperature measurement

- Drain valve

- Water meter
Contact the sales sta responsible for additional

details and a quotation for the DSA WALL.

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VD.IQ.P1.02

Produce d by Danfoss A/S © 11/2014