Danfoss Termix One-B-FI Fact sheet

Fact sheet

Termix One-B-FI

Instantaneous water heater for flats, single-family houses and small apartment buildings with up to 4 flats

Application

The Termix One is an instantaneous water heater featuring superb heat extraction and high performance.

The Termix One is suitable for flats, single-family houses as well as for small apartment buildings with up to 4 apartments. The water heater is available in two sizes, either for 1 apartment or for 1 4 apartments. The Termix One is applicable for decentralized heating systems – as

well as for district heating networks with summer operation at low temperatures or changes in differential pressure. The Termix One heat exchanger cools the district heating water very efficiently, thereby creating a very good operation economy.

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 patented sensor accelerator accelerates the closing of the Danfoss AVTB valve and protects the heat exchanger against overheating and lime scale forma-

tion. The sensor accelerator and AVTB valve also works as a bypass keeping the house supply line warm. This shortens the waiting periods during summer when the heating system is in reduced operation. The sensor accelerator helps to ensure

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 DHW heat exchanger with a thermostatic control. Therefore this type of regulation can be used by low pressure on the in the cold water mains.

Construction

All pipes are made of stainless steel. The connections are made by nuts and gaskets. The Termix One comes with a complete fully insulated cover thus minimizing the heat loss both during tapping of domestic hot water but also in standby mode.

FEATURES AND BENEFITS

Instantaneous water heater

DHW regulation with an accelerated thermostatic control

Capacity: up to 29 – 45 kW on DHW

DHW in sufficient quantity

Operates independently of differential pressure and flow temperature

Minimum space required for installation

Pipes and plate heat exchanger made of stainless steel

Minimized risk of lime scale and bacteria formation

Low heat loss

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Danfoss Termix One-B-FI Fact sheet

CIRCUIT DIAGRAM – EXAMPLE

Termix One-B with complete insulation

B Plate heat exchanger DHW 7 Thermostatic valve

DH

DHW

supply

 

DH

DCW

return

 

Technical parameters:

Nominal pressure:

DH supply temperature: DCW static pressure: Brazing material (HEX):

Weight:

Dimensions (mm):

H 435 × W 355 × D 195

PN 16

 

 

Tmax

= 120 °C

pmin

=

0,5 bar

Copper

 

10 – 12 kg (incl. packing)

(type 1+2)

Connections sizes:

 

DH + DCW + DHW:

G ¾” (ext. thread)

Connections:

1Domestic cold water (DCW)

2Domestic hot water (DHW)

3District heating (DH) supply

4District heating (DH) return

Wall

Seen from above

Options:

Booster pump (increases DH flow)

Safety valve and non-return valve (10 bar)

Safety valve with thermostatic circulation set

Thermostatic circulation set

Non-return and pressure equalizer (GTU)

DHW: CAPACITY EXAMPLES, 10°C / 50°C

 

DHW

Supply flow

Return flow

Pressure

Flow rate

 

DHW

Supply flow

Return flow

Pressure

Flow rate

Substation type

capacity

primary

primary

loss primary

secondary

Substation type

capacity

primary

primary

loss primary

secondary

 

[kW]

[°C]

[°C]

[kPa]

[l/h]

 

[kW]

[°C]

[°C]

[kPa]

[l/h]

 

 

 

 

 

 

 

 

 

 

 

 

Type 1

29,3

60

23,0

20

630

Type 2

34,7

60

24,4

20

744

w/AVTB 15

38,2

60

25,2

45

822

w/AVTB 20

47,1

60

26,8

45

1014

1 household

37,8

70

20,0

20

816

up to 4 households

45,1

70

21,3

20

972

© Danfoss | DCS-SDGPT/ PL | 2021. 08

AM195786467432en-020301

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