Danfoss BVX-E RO SEK Fact sheet
Fact sheet
Termix BVX-E RO SEK( ECL310/A337)SW Schwerin Friedrichsthal
Indirect substation for single-family houses or apartments
Application
The Termix BVX-E RO SEK substation is
a complete solution for hot water and
space heating with optimal safety, efficient energy transfer, service-friendly
construction and a compact design.
The substation is used if a heat exchanger is required or on a conversion
to district heating where the existing
equipment is unsuitable for direct connection.
District heating (DH)
The substation is prefabricated with
a differential pressure controller, fitting
piece and sensor pockets for insertion
of a heat meter as well as strainers and
ball valves.
Heating (HE)
The heating circuit consists of a plate
heat exchanger, safety valves, manometer, thermometers, ball valves, drain
valve, air valves and circulation pump.
The temperature of the heating is electronically controlled with an outdoor
temperature sensor.
Domestic hot water (DHW)
The domestic hot water circuit consists of a hot water tank with coil and
a pump for controlling the temperature with possibility for DHW priority.
The DHW tank and coil are enamelled
and the tank contains a magnesium
anode.
Construction
All pipes are made of stainless steel.
The connections are made with nuts
and gaskets. The Termix BVX-E RO SEK
is completed by a white steel cover in
a modern design with door and including external thermometers.
FEATURES AND BENEFITS
• Substation for single-family
houses or apartments
• DHW regulation with pump control
• Indirect heating with electronic control
• Suitable in cases of low
district heating capacity
• Operates independently of differential
pressure and flow temperature
• Pipes and plate heat exchanger
• Made of stainless steel
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CIRCUIT DIAGRAM EXAMPLE
DHW
DCW
Circ.
DH
Supply
DH
Return
A Plate heat exchanger, HE
E DHW tank with coil
F Electronic controller
1 Ball valve
1A Ball valve, DVGW
2 Non-return valve
4 Safet y valve
9 Strainer
10 Circulation pump, HE
11 Domestic hot water pump
13 Charging pump
14 Sensor pocket, heat meter
13
HE
Supply
HE
Return
16 Outdoor sensor
19 Sur face sensor
20 Filling / drain valve
24 Delivered loose with unit
26 Manometer
27 Actuator
27A Actuator with spring return
28 3-way motorized valve
30 Flow control w. control
valve
39 Connection closed
41 Fitting piece, heat meter
44 Immersion sensor
48 Air escape, manual
49 Safety thermostat
76 Capvalve for expansion
Technical parameters:
Nominal pressure: PN 10
Max. supply temperature: T
Brazing material (HEX): Copper
= 120 °C
max
Weight incl. cover: 120 – 150 k g
Cover: White-lacquered
steel sheet
Dimensions (mm):
With cover:
H 1890 × W 540 × D 640
CAPACITY, WEIGHT AND DIMENSIONS
DHW: CAPACITY EXAMPLES, 10°C / 50°C
Substation
type
Tan k
volume
[l]
Coil
supply/return temp.
[°C]
80 / 40 486 546 22,6
BVX 1-x 100
70 / 30 245 305 11,4
60 / 30 172 232 8,0
80 / 40 486 576 22,6
BVX 2-x 150
70 / 30 245 335 11,4
60 / 30 172 262 8,0
* Output first hour = constant output + 60% of tank volume
DHW
constant
capacity
[l/h]
DHW
capacity
first hour*
[l/h]
DHW
constant
capacity
[kW]
Connections sizes:
DH + HE + DCW + DHW + Circ.: ¾“ G (int. thread)
HEATING: CAPACITY EXAMPLES
Sub-
station
type
[kPa]*
BVX x-1
BVX x-2
BVX x-3
BVX x-4
* Heat meter not included
70 / 40 – 35 / 60 °C 80 / 45 – 4 0 / 70°C 90 / 45 – 4 0 / 70°C
∆ p
Capacity
[kW]
Flow
[l/h]
30 15 518 17 476 23 673
35 16 555 18 510 25 724
30 19 671 21 619 30 865
35 21 718 23 662 32 929
30 22 773 25 715 34 990
35 24 828 27 765 37 1073
30 30 1018 33 941 45 1306
35 32 1089 35 1006 49 1404
Temperature
Capacity
[kW]
Flow
[l/h]
Capacity
[kW]
Flow
[l/h]
© Danfoss | DHS-SRMT/ PL | 2018. 11
VL.MG.W1.02
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