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

1

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