ThermoDual Domestic hot water charging system Description/Application ThermoDual is the compact and effective domestic hot water (DHW) charging system. Due to the consistent use of carefully selected components and highest quality materials, the compact the ThermoDual system meet all of the requirements for the prevention of legionella growth. The highly efficient heat transfer of the heat exchangers enable The ThermoDual system to attain low heating water return temperatures across the entire cycle of a tank charge, thus reducing the required media flows. This translates into greater operational efficiency and predestines this system for utilization in district heating networks and in combination with condensing boilers. The optimum adaptation to the applicable specific needs in terms of storage capacity and output ensures a maximum of efficiency, comfort and hygiene. Main system data Primary Secondary Type S H Max. operating temp. ( C) 100 (150) 1 110 95 Max. operating pressure (bar) 16 (25) 1 3 10 Working medium Circulation water/dhw 1 on request Approvals and Standards: W 553 of the DVGW 2 working temperature / circulation, W 551 of the DVGW 2 prevention of legionella growth, DIN4753 DHW storage tank. 2 German Technical and Scientific Association for Gas and Water ThermoDual S Compact DHW charging system with stainless steel domestic hot water storage tank and brazed plate heat exchanger as well as preinstalled piping assembly with all required fittings for installation. ThermoDual H Compact DHW charging system with stainless steel domestic hot water storage tank and gasketed plate heat exchanger as well as preinstalled piping assembly with all required fittings for installation. DHSMT/PL VD.KR.C2.02 Danfoss 12/2006 1
Ordering Explanation, ThermoDual types ThermoDual S 1506 Performance index NL 3 (no. of normal flats) 4 Volume storage tank (liter) Type S with brazed plate heat exchanger H with gasketed plate heat exchanger DHW charging system with preinstalled pipes assembly with all required fittings for installation 3 According to DIN 4708 only for German market 4 The normal flat for 35 persons (4 rooms) ThermoDual S (brazed plate heat exchanger) Type Code No. 1003 VA 004B6337 1003 EM 5 004B6338 1506 004B6285 2008 004B6667 20011 004B6668 20015 004B6669 20020 004B6670 30011 004B6287 30017 004B6288 30023 004B6289 30029 004B6290 30035 004B6671 30043 004B6672 35012 004B6291 35018 004B6292 35026 004B6293 35034 004B6294 35039 004B6295 35048 004B6673 50015 004B6296 50021 004B6297 50030 004B6298 50039 004B6299 50048 004B6300 50063 004B6301 50072 004B6302 75027 004B6303 75036 004B6304 75045 004B6305 75055 004B6306 75070 004B6307 75080 004B6308 100043 004B6309 100052 004B6310 100062 004B6311 100077 004B6312 100087 004B6313 5 Att. storage tank in enamelled steel ThermoDual H (gasketed plate heat exchanger) Type Code No. 30015 004B6314 30023 004B6315 30029 004B6316 30040 004B6317 35017 004B6318 35026 004B6319 35034 004B6320 35046 004B6321 50020 004B6322 50030 004B6323 50039 004B6324 50058 004B6325 50072 004B6326 75036 004B6327 75045 004B6328 75065 004B6329 75079 004B6330 750105 004B6331 100043 004B6332 100052 004B6333 100072 004B6334 100087 004B6335 1000113 004B6336 2 VD.KR.C2.02 Danfoss 12/2006 DHSMT/PL
Main components Main components in standard system: DHWapproved charging pumps, Storage tank, Heat exchanger, Shutoff valve 6, Balancing valve, Safety valve, Thermometer. 6 The selfacting control valve must be dimensioned according to local DH conditions and thus ordered separately. 6 100 without 150 1 thermometer, 1 valve 200 2 thermometers, 2 valves Special versions The ThermoDual system can be combined with a second or multiple DHW storage tanks for optimum tailoring to onsite conditions, available with readytomount piping, as an option. Variably configurable hot water charging system for special applications, on request: Stainless steel domestic hot water storage tank, series SE, capacity 150... 8000 liters, Enamelled domestic hot water storage tank, series SEM, capacity 200 1000 liters, Brazed plate heat exchanger, Gasketed plate heat exchanger, Tube and shell heat exchanger, copper, series SHRCU, Tube and shell heat exchanger, stainless steel, series SHRVA, DHWadequate bronze or stainless steel charging pump, Balancing valve, Sensor pocket. Accessories 7 Red bronze or stainless steel sensor pockets, Selfacting control valves as twoway valve, 3way mixing valve, or 3way diverting valve, with thread or flange, Control and safety thermostats, storage tank thermometer, Additional storage tank with double piping. 7 Code no. for ordering on request Spare parts 8 Charging pumps UP 2030 N UPS 2560 B Z 25/6 UPS 2580 B Flow setting valves SD 232262 2...8 l/min DN 15 Rp ½ SD 232360 4...15 l/min DN 20 Rp ¾ SD 232362 8...30 l/min DN 20 Rp ¾ SD 232460 6...20 l/min DN 25 Rp 1 SD 232461 10...40 l/min DN 25 Rp 1 SD 232561 20...70 l/min DN 32 Rp 1¼ SD 232661 30...110 l/min DN 40 Rp 1½ SD 232861 50...180 l/min DN 50 Rp 2 Thermometer Tank thermometer, 0100 C, D 100 x 200 mm, inc. stainless steel pocket Miscellaneous accessories Thermostat TT200 090 C Sensor pocket for TT200 (in stainless steel) Thermostat AT 3090 C (surface type) 8 Other spare parts and accessories on request. Code No. 004B6617 004B6618 004B6620 004B6621 004B6629 004B6630 004B6631 004B6632 004B6633 004B6634 004B6635 004B6636 004B6641 004B6638 004B6639 004B6640 DHSMT/PL VD.KR.C2.02 Danfoss 12/2006 3
Technical data DHW DHW top delivery DHW permanent Heating Pressure Performance Connected temperatures performance delivery performance water loss Type index load prim./sec. 10 > 45 C 10 > 45 C 10 > 60 C flow HEX Input C NL 9 kw l/10 min l/h l/h l/h l/h kpa W 10 1003 3 22 234 658 541 379 550 0,5 70/35 1506 6 28 319 894 690 490 700 6 2008 8 25 388 902 616 430 480 12 20011 11 40 450 1271 985 690 770 10 20015 15 60 532 1764 1478 1040 1160 13 20020 20 80 614 2256 1970 1390 1550 13 30011 11 25 510 1023 616 430 480 12 30017 17 40 571 1392 985 690 770 10 30023 23 60 653 1885 1478 1040 1745 13 30029 29 80 735 2377 1970 1390 2325 13 30035 35 100 839 2892 2463 1730 1930 10 30043 43 130 962 3630 3201 2250 2520 14 35012 12 25 578 1091 616 430 480 12 35018 18 40 639 1460 985 690 770 10 35026 26 60 721 1953 1478 1040 1160 13 35034 34 80 803 2445 1970 1390 1550 13 35039 39 100 886 2938 2463 1730 1930 10 35048 48 130 1034 3701 3201 2250 2520 14 S 50015 15 25 781 1295 616 430 480 12 70/25 50021 21 40 843 1664 985 690 770 10 50030 30 60 925 2157 1478 1040 1160 13 50039 39 80 1007 2649 1970 1390 1550 13 50048 48 100 1089 3142 2463 1730 1930 10 50063 63 130 1212 3880 3201 2250 2520 14 50072 72 150 1294 4373 3694 2600 2900 12 100 75027 27 40 1182 2003 985 690 770 10 75036 36 60 1264 2496 1478 1040 1160 13 75045 45 80 1346 2988 1970 1390 1550 13 75055 55 100 1428 3481 2463 1730 1930 10 75070 55 130 1551 4219 3201 2250 2520 14 75080 80 150 1634 4712 3694 2600 2900 12 100043 43 60 1603 2835 1478 1040 1160 13 100052 52 80 1685 3327 1970 1390 1550 13 100062 62 100 1768 3820 2463 1730 1930 10 100077 77 130 1891 4558 3201 2250 2520 14 100087 87 150 1973 5051 3694 2600 2900 12 30015 15 36 555 1294 887 620 1045 30023 23 60 653 1885 1478 1040 1745 16 30029 29 80 735 2377 1970 1390 2325 30040 40 120 900 3362 2955 2080 3485 17 35017 17 36 623 1362 887 620 1045 35026 26 60 721 1953 1478 1040 1745 16 35034 34 80 803 2445 1970 1390 2325 35046 46 120 968 3430 2955 2080 3485 17 50020 20 36 826 1556 887 620 1045 50030 30 60 925 2157 1478 1040 1745 16 50039 39 80 1007 2649 1970 1390 2325 H 50058 65/35 58 120 1171 2634 2955 2080 3485 17 50072 72 150 1294 4373 3694 2600 4355 245 75036 36 60 1264 2496 1478 1040 1745 16 75045 45 80 1346 2988 1970 1390 2325 100 75065 55 120 1510 3973 2955 2080 3485 75080 80 150 1634 4712 3694 2600 4355 17 750105 105 200 1839 5943 4925 3470 5810 245 100043 43 60 1603 2835 1478 1040 1745 16 100052 52 80 1685 3327 1970 1390 2325 100 100072 62 120 1850 4312 2955 2080 3485 100087 87 150 1973 5051 3694 2600 4355 17 1000113 113 200 2178 6282 4925 3470 5810 245 9 Performance index NL acc. to DIN 4708 in relation to a storage tank water temperature of 60 C. 10 Charging pump; A.C. 1 ~ 230 V / 50 Hz; thermal motor overload protection or motor protection by integrated thermal switch. 4 VD.KR.C2.02 Danfoss 12/2006 DHSMT/PL
Design and function Connections: 1 Domestic cold water (DCW) 2 Domestic hot water (DHW) 3 Circulation 4 District heating (DH) supply 5 District heating (DH) return The domestic hot water flow pumped through the heat exchanger by the charging pump remains constant at all times and is preset via the balancing valve. Components: 6 Thermometer 7 Charging pump 8 Heat exchanger 9 Balancing valve 12 Safety valve 20 Ball valve 36 Storage tank The domestic hot water temperature is maintained at a constant level through a balancing valve via the water temperature controller. As a result, the following operation modes can be defined for the ThermoDual DHW charging system: Low Load Operation During low load operation, all of the cold water flows through the heat exchanger. If the tap output is smaller than the flow preset by the balancing valve, a portion of the hot water (tap flow) flows to the tap locations in the upper part of the tank as a bypass. The residual water is removed from the bottom of the tank, causing the tank to be continually charged. The total tap output is covered by the heat exchanger, while the storage tank is not being discharged. Peak Load Operation During peak load operation (higher demand that can be supplied by the available heating power), the preset cold water flow flows through the heat exchanger and the residual water streams from the bottom to the top of the storage tank. The tap output is covered by the heat exchanger while the domestic water storage tank is being simultaneously discharged. Once tap operation ceases, the storage tank is charged as described below. DHSMT/PL VD.KR.C2.02 Danfoss 12/2006 5
Charging Operation (no consumption) If there is no consumption the storage tank is being charged. The total charging flow is removed through the bottom of the tank and returned through the top of the storage tank via heat exchanger. If the storage tank is completely charged and no output consumption occurs, the control valve closes and interrupts the heating water flow. A virtual flash showing the operations is available, please contact your Danfoss local representative. 6 VD.KR.C2.02 Danfoss 12/2006 DHSMT/PL
Sizing Dimensioning and selection of the ThermoDual system should be carried out with the support of the Danfoss dimensioning program. Dimensioning Diagram for Dwelling Houses acc. to DIN 4708 Example: Performance index:... NL 60 Selected: Storage tank capacity:... 750 liters Evaluated: Power consumption:... 110 kw Balancing valve:... 223 1461 Charging pump:... UPS 2560 B or Star Z256 DHSMT/PL VD.KR.C2.02 Danfoss 12/2006 7
Mounting ThermoDual S After the storage tank has been set up, the heat exchanger is attached. The premounted fitting set, charging pump and corrugated hose can be easily installed due to mainly flat screwtop connections. The blowoff pipe of the safety valve is to be installed by the customer, based on local conditions and requirements. ThermoDual H Connect the storage tank and the heat exchanger with the premounted piping set, fitting sets and charging pump. The blowoff pipe of the safety valve is to be installed by the customer, based on local conditions and requirements. Dimensions ThermoDual S ThermoDual H 8 VD.KR.C2.02 Danfoss 12/2006 DHSMT/PL
S H Type H1 H2 H3 H4 D E approx. F approx. B approx. T approx. Connections 1, 2 3 4, 5 mm mm mm mm mm mm mm mm mm Rp Rp DN kg 1003 1300 850 570 ¾ ¾ 40 1506 1077 755 516 65 640 435 230 1 1 52 2008 20020 30011 30043 35012 35048 50015 50072 75027 75080 100043 100087 30015 1540 1230 751 1705 1390 819 590 640 1725 690 1765 1410 839 790 2080 1695 1124 890 2080 1706 1135 1030 465 490 490 520 515 545 495 625 470 610 470 590 400 430 460 1½ ¾ 525 1 600 695 2 1 Weight 11 68 71 72 79 79 20 13 86 93 103 140 149 161 169 187 25 12 262 282 30023 190 640 1375 975 30029 192 30043 1705 1050 40 1390 70 14 197 ¾ 35017 1725 1060 194 35026 25 12 197 690 1400 1000 35034 1½ 199 35048 40 12 204 50020 207 50030 25 12 210 1450 1050 50039 1765 1410 1070 790 212 50058 217 40 12 50072 1465 1080 224 75036 255 25 12 75045 1500 1100 257 75065 2080 1695 1267 890 1 75080 40 12 269 1515 1130 750105 277 2 100043 275 25 12 100052 1570 1170 277 100072 2080 1706 1287 1030 100087 1585 1200 40 12 289 1000113 297 11 Tare weight without water 12 Flange PN 16 acc. to DIN 2633 13 Welding tails 26,5 x 2,3 mm 14 Tolerance: 10 mm DHSMT/PL VD.KR.C2.02 Danfoss 12/2006 9
10 VD.KR.C2.02 Danfoss 12/2006 DHSMT/PL