Danfoss DSE FLEX Data sheet

Data sheet

DSE FLEX – Compact Substation

	General description and			New generation substation is suitable for the already
	application			proven flexible, efficient and economical infrastruc-
				ture of a low carbon city, a District Heating network.
				Danfoss district heating substations provides the
				link between district heating suppliers and customer
				installations. They contain all the necessary equip-
				ment to adjust the heat supplied for the needs of
				the object premises as specified in the heating
				supply contract. In this respect they must comply
				with all applicable standards and with the supplier’s
				technical connection conditions. Indirect connecti-
				ons (in which district heating and in-house systems
				are hydraulically isolated) incorporate components
				that separate the systems (heat exchanger), limit the
				flow volume to that specified in the contract, regu-
				late the secondary supply temperature and measure
				energy consumption. It is a an exclusive solution
				designed to optimally fulfil specific requests and
				stringent requirements for district heating. By use
				of the Danfoss dimensioning program you can find
				out if the application you need fits DSE FLEX. The
				new generation substation is designed to be floor
				mounted, is keeps the robustness and friendly /
				appealing outlook of the old product with the
				advantage of a lighter profile, smaller size and desi-
				gned for a faster and safer transport.
	Maximum operating
		Primary
	parameters
		Maximum permissible supply temperature, primary			135°C
		Maximum permissible operating pressure, primary			14,2 bar(g)
		Rated pressure, primary			PN16
		Secondary Heating
		Maximum permissible temperature, secondary			100°C
		Maximum permissible operating pressure, secondary			6 bar(g)
		Minimum required pressure (static), water supply			1.0 bar(g)
		Secondary Domestic Hot Water
		Maximum permissible temperature, secondary			90°C
		Maximum permissible operating pressure, secondary			10 bar(g)
		Minimum required pressure (static), water supply			1.0 bar(g)
	Materials
		Pipes, fittings, flanges, valves (primary side)	P235GH, EN-JL1040 (GGC25), CuSn5Pb5Zn5-C (RG-5),
			EN-GJS-400-18-LT (GGG 40.3)
		Pipes, fittings, flanges, valves (heating side)	P235GH, EN-JL1040 (GGC25),
			EN-GJS-400-18-LT (GGG 40.3), brass (DZR type)
		Pipes, fittings, flanges, valves (DHW side)	1.4301, 1.4404, brass (DZR type),
			CuZn35Pb2Al-C (CC752S)
		Heat exchanger	1.4404 with Cu solder
		Insulation (casted parts)	EPP foam, l=0.038 W/mK
		Insulation (heat exchanger)	PU foam, l =0.035 W/mK
		Insulation (piping)	PU foam, l =0.029 W/mK

© Danfoss | 2018.02

VD.JV.C2.02 | 1

Data sheet

DSE FLEX – Compact substation

Circuit diagram

Electric box
	TE
	2B
750	753
		95	3		445								465
					443
			A										430
					488		474		472	470		468
								PI
								419	420			423	411
		26	1		182							164
		151		181									150
		35		174								153
		34	175		171	167				813		815	151
			720
									PI
		A
									811 812		814	PS
		75		377								398	340
			376							395
		85		364								343	341
		84	365		361	357				820		822
			700						PI
		A										PS
								818 819
											821
	26	Control valve HE	182		Thermometer		430	Ball valve
	34	Drain valve	340, 341		Ball valve		443	Temperature sensor
	35	Temperature sensor	343		Strainer		445	Thermometer
	75	Ball valve	357		Pump		465	Ball valve
	84	Drain valve	361		Drain valve		468	Check valve
	85	Thermometer	364		Thermometer		470	Pump
	95	Control valve DHW	365		Temperature sensor		472	Balancing valve
	150, 151	Ball valve	376		Temperature sensor		474	Thermometer
	153	Strainer	377		Thermometer		488	Temperature sensor
	164	Balancing valve	395		Safety thermostat		750	Electronic controller
	167	Pump	398		Balancing valve		753	Outdoor sensor
	171	Drain valve	411		Ball valve		811, 818	Pressure transmitter
	174	Thermometer	419		Pressure measurement		812, 819	Pressure measurement
	175	Temperature sensor	420		Safety valve		813, 814	Safety valve
	181	Temperature sensor	423		Check valve		815, 822	Expansion valve
							820, 821	Safety valve
2 | © Danfoss | 2018.02													VD.JV.C2.02