Danfoss Termix BVX FI RO T/E Fact sheet

Fact sheet

Termix BVX FI RO T/E

Indirect substation for single-family houses or apartments

Application

The Termix BVX FI RO T/E substation is a complete solution for hot water and space heating with optimal safety, efficient energy transfer, servicefriendly 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, pressure gauge, ball valves, drain valve, air valves, expansion vessel and circulation pump. The temperature of the heating is controlled by an electronic controller with an outdoor temperature sensor.

Domestic hot water (DHW)

The domestic hot water circuit consists of a hot water tank with coil and selfacting thermostatic control valve. The DHW tank and coil are enamelled and the tank contains a magnesium anode.

Options

The Termix BVX FI RO T/E can be supplied with a thermostatic circulation valve or a built-in non-return valve. Option delivered loose with the unit.

Construction

All pipes are made of stainless steel. The connections are made with nuts and gaskets. The Termix BVX FI RO T/E is completed by a white steel cover in modern design with door. The 105 ltr. tank can replace the older 150 ltr. tank thanks to the unit being fully insulated. This will save space as well. Non-return valve and safety valve for the cold water supply is delivered loose with the unit.

FEATURES AND BENEFITS

••Substation for single-family houses or apartments

••DHW regulation

••Indirect heating with electronic control

••105 ltr. tank for DHW

••Capacity: 11-30 kW heating

••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

••Minimum space required for installation

••Fully insulated

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CIRCUIT DIAGRAM - EXAMPLE

DHW

DCW

DCW

DH

Supply

DH

Return

A	Plate heat exchanger, HE	19	Surface sensor
E	DHW tank with coil	20	Filling / drain valve
F	Electronic controller	22	Test connection
1	Ball valve	24	Delivered loose with unit
1A	Ball valve, DVGW	26	Manometer
4	Safety valve	27	Actuator
7	Thermostatic valve	29	2-way motorized valve
9	Strainer	38	Expansion tank
10	Circulation pump, HE	41	Fitting piece, heat meter
14	Sensor pocket, heat meter	50	Differential pressure
16	Outdoor sensor		controller w /o flow limiter
18	Thermometer

HE

Supply

HE

Return

Technical parameters:
Nominal pressure:	PN 10 (PN16 on request)
Max. supply temperature:	Tmax = 120 °C
Brazing material (HEX):	Copper
Weight incl. cover:	120 – 150 kg
Cover:	White-lacquered
	steel sheet
Dimensions (mm):
With cover:
H 1910 x W 600 x D 600

The connections are at the top of the station

Connections:

1.DHW Circulation (Circ.)

2.Domestic cold water (DCW)

3.Domestic hot water (DHW)

4.Heating (HE) return

5.Heating (HE) supply

6.District heating (DH) return

7.Distict heating (DH) supply

Connections sizes:

All connection: ¾“ G (int. thread)

Options:

• Thermostatic circulation set

DHW: CAPACITY EXAMPLES, 10 °C / 50 °C

		Tank	Coil	DHW	DHW	DHW
	Substation		supply/return	constant	capacity	constant
		volume
	type		temp.	capacity	first hour*	capacity
		[l]
			[°C]	[l/h]	[l/h]	[kW]
	BVX 2-x	105	70/30	272	335	12,7
			60/30	199	262	9,3

* Output first hour = constant output + 60% of tank volume

HEATING: CAPACITY EXAMPLES

Sub-	Heating	Supply	Heating	Pressure	Residual	Flow	Flow rate
		flow pri-		loss	pump	rate
station	capacity	mary	circuit	primary*	head	Primary	second-
type	[kW]	[°C]	[°C]	[kPa]	[kPa]	[l/h]	ary l/h
	15	75/45	40/65	35	50	455	543
BVX 2-1	15	80/50	45/70	35	50	452	544
	11	90/51	50/70	35	50	257	499
	25	75/45	40/65	45	45	746	904
BVX 2-2	25	80/50	45/70	45	40	742	908
	19	90/51	50/70	45	30	445	868
	30	75/45	40/65	50	40	880	1088
BVX 2-3	30	80/45	45/70	50	40	871	1087
	30	90/50	50/70	50	20	699	1363

* Heat meter not included

© Danfoss | DHS-SMCT/ PL | 2018 . 09

VL.MP.I1.02