Danfoss Solar S Fact sheet
Fact sheet
Termix Solar S+
Wall-mounted domestic hot water module for flats, single-family houses and apartment buildings
Application
The Termix Solar S+ is an instantaneous water heater, featuring good
heat extraction and performance by
means of a plate heat exchanger and
a high-performance charging pump.
The heat exchanger is made solely of
stainless steel, thereby making this
station the perfect choice for areas
where copper corrosion is known to
occur. Termix Solar S+ is applicable for
heating systems with buffer accumulators, solar systems or for other heat
sources, where a low return temperature is preferred. The primary source
is cooled out efficiently by the heat
exchanger, thereby creating a good
operation economy. A flow switch in
the domestic hot water pipe is controlling the primary pump. An optional circulation pump can maintain the
circulating temperature at a desired
temperature.
Domestic hot water (DHW)
The domestic hot water is prepared in
the heat exchanger and the temperature is regulated with a thermostatic
control valve. The AVTB valve ensures
a stable hot water temperature by
varying loads, flow temperatures
and differential pressure, without the
need for readjusting the valve. There
is no additional pressure loss on the
secondary side of the heat exchanger
with a thermostatic control. Therefore this unit is suitable in systems
with low pressure in the cold water
mains.
Options
The water heater can be provided
with a circulation pump with safety
valve, a white-laquered steel cover
and two different ball valve sets (one
set is with DVGW approval for DHW).
FEATURES AND BENEFITS
• Domestic hot water module with tap
capacity of up to 30l/min. at 84 kW
• Thermostatic control
• Operates independently of differential
pressure and flow temperature
• Heat exchanger made of stainless
steel; ideal for areas with
known copper corrosion
• High efficiency pump capable of 7m head
• Reliable long-life AVTB regulation valve
Construction
All pipes are made of stainless steel.
The connections are made by nuts
and gaskets. The gasketed heat
exchanger is made of stainless steel
plates.
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CIRCUIT DIAGRAM – EXAMPLE
BT
21
supply
supply
return
return
1
BT
35
BT
21
1 13
BT
35
13
230 V
M
Termix Solar S+
B Heat exchanger DHW
21
45
1A
DHW
M Electrical wiring box
1 Ball valve
1A Ball valve, DVGW
7 Thermostatic valve
13 Charging pump
21 To be ordered separately
35 Ball valve / non-return valve
45 Flow switch
7
1A
DCW
B
230 V
M
Termix Solar S+
21
45
1A
DHW
with circulation
B Heat exchanger DHW
M Electrical wiring box
1 Ball valve
1A Ball valve, DVGW
7
21
2
1A
DCW
B
4
11 A
230 V
Circ.
1
2 Single check valve
4 Safet valve
7 Thermostatic valve
11A Domestic hot water pump
with built in check valve
13 Charging pump
21 To be ordered separately
35 Ball valve / non-return valve
45 Flow switch
Technical parameters:
Nominal pressure: PN 10
DH supply temperature: T
DCW static pressure: P
HEX material: Stainless steel
= 120 °C
max
= 0.5 bar
min
Weight incl. cover: 18 kg (incl. packing)
Dimensions (mm):
Without cover: H 655 × W 440 × D 140
With cover: H 715 × W 450 × D 150
With circulation: H 940 × W 440/450 × D 140/150
Connections:
1. Buffer tank (BT) supply
2. Domestic hot water (DHW)
3. Buffer tank (BT) return
4. Domestic cold water (DCW)
5. Circulation (optional)
DHW: CAPACITY EXAMPLES
DHW temperature
[°C]
10 / 45 57
10 / 50
Tap capacity
[kW]
84
440 45
246 100
655
940
303 100
5
135 168
Supply flow primary
[°C]
55 35
70 35
1 2
3 4
45
138
45
Pressure loss primary
[kPa]
Connections sizes:
All connections: G ¾“(int. thread)
Module code number: 144H2346
Options:
• Circulation pump with
10 bar safety valve (144H0936)
• White-laquered steel cover (144H1282)
• Ball valve set with 4 ball valves
(144H0930)
• Ball valve set with 4 ball valves,
of which two are with
DVGW approval (144H0932)
Tap flo w
[l/min]
23
30
© Danfoss | DHS-SRMT/ PL | 2018 . 04
VL.MG.Y1.02
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