Fact sheet
Termix BV
Instantaneous water heater for large apartment houses, sports arenas and schools
Application
The Termix BV substation is an
instantaneous water heater
featuring superb heat extraction and
high performance. The substation
is delivered with thermostatic or
automatic controls. The Termix
BV is suitable for large apartment
houses, sports arenas and schools,
where large amounts of hot water
are needed. The hot water systems
are available in 7 different sizes
with an output from 77-222 kW.
The Termix BV unit is supplied with
PU insulated heat exchangers.
Domestic hot water (DHW)
The domestic hot water is prepared
in a plate heat exchanger and the
temperature is regulated with
thermostatic or automatic controls.
The thermostatic solution
is regulated with self-acting
thermostatic control valves.
The substations with high output
are controlled with two valves
connected in cascade in order
to control both small and large
demands for hot water in an
efficient manner. The Termix BV can
also be mounted with automatic
controls. There is no additional
pressure loss on the secondary
side of the heat exchanger with
a thermostatic or automatic
control valve. Therefore this type
of regulation can be used by low
pressure in the cold water mains.
Domestic hot water circulation
The Termix BV substation is
supplied with connections
for DHW circulation including
circulation pump and a nonreturn valve as a standard.
Options
The substation can be supplied
with a safety valve and
a thermostatic circulation valve.
Construction
All pipes are made of stainless
steel. The connections are made
by nuts and gaskets. The Termix
BV substation can be delivered
with a white-lacquered steel
cover in modern design.
FEATURES AND BENEFITS
• Instantaneous water heater
• DHW regulation with thermostatic
or automatic controls
• Capacity: 77-222 kW DHW
• DHW in sufficient quantity
• Operates independent 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
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CIRCUIT DIAGRAM - EXAMPLE
DH
supply
DH
return
Diagram for Termix BV type 4-8
Technical parameters:
Nominal pressure: PN16
DH supply temperature: T
DCW static pressure: P
Brazing material (HEX): Copper
Weight incl. cover: 20-40 kg (incl. packing)
Cover: White-lacquered steel sheet
Dimensions (mm):
Without cover:
H 660 × W 510 × D 240 (type 2-5)
H 1000 × W 800 × D 340 (type 6-8)
With cover:
H 800 × W 540 × D 360 (type 2-5)
H 1000 × W 950 × D 525 (type 6-8)
= 120 °C
max
= 0,5 bar
min
Connections:
1. District heating (DH) supply
2. District heating (DH) return
3. Circulation
4. Domestic hot water (DHW)
5. Domestic cold water (DCW)
Type 2-5
Type 6-8
Wall
Wall
DHW
DCW
Circ.
Connections sizes:
DH + DCW + DHW: G 1” (int. thread)
Circulation: G ¾” (int. thread)
Options:
• White-lacquered steel cover
• Safety valve and non-return valve (10 bar)
• Thermostatic circulation set
B Heat exchanger DHW
2 Non-return valve
7 Thermostatic valve
11 Domestic hot water pump
18 Thermometer
DHW: CAPACITY EXAMPLES
Substation type
Ter mix BV*
BV-2T-CP 77 70 20 45 27,6
BV-3T-CP 93 70 20 45 33,3
BV-4T-CP 122 70 20 45 43,7
BV-5T-CP 157 70 20 45 56,3
BV-6T-CP 150 70 19 45 53,8
BV-7T-CP 160 70 18 45 57,4
BV-8T-CP 222 70 19 45 79,6
© Danfoss | DCS-SGDPT/ PL | 2021. 08
DHW capacity
[kW]
Seen from above
Supply flow primary
[°C]
Return flow primary
[°C]
Pressure loss primary
[kPa]
AM188286466660en-020401
DHW tap load
[l/min]
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