DESIGN DATA THRs PDF Free Download

LESS ENERGY. FEWER EMISSIONS. MORE COMFORT. Gas condensing equipment & accessories DESIGN DATA THRs 2013 www.univenta.com.au 2 Draft projection 2013

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CONTENTS Modern technology and the environment........................... 5 THRs condensing boilers.................................. 7 Overview of THRs condensing boilers............................ 8 Internal description........................................... 10 Boilers parameters............................................ 12 Mounting dimensions......................................... 14 Connecting dimensions....................................... 15 Hydraulic characteristics...................................... 20 The control system of THRs condensing boilers........... 22 Control system technology..................................... 23 Boiler control unit.................................... 24 Basic accessories............................................. 25 Boiler accessories for BSB bus connection......................... 26 Wireless accessories for THRs boiler............................. 27 LPB communication......................................... 28 Web server.................................................. 29 Recommended connection diagrams...................... 32 Connection diagram T1........................................ 34 Connection diagram T2........................................ 36 Connection diagram T3........................................ 38 Connection diagram T4........................................ 40 Connection diagram T5........................................ 42 Connection diagram T6........................................ 44 Connection diagram T7........................................ 46 Connection diagram T8........................................ 48 Connection diagram T9........................................ 50 Connection diagram T10....................................... 52 4 Draft projection 2013

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LESS ENERGY. FEWER EMISSIONS. MORE COMFORT. Modern technology and the environment Thirty-year development and production of condensing equipment, focused from the very beginning only on the best solutions, has brought the products to an excellent technical level. Nowadays, the trend is not only the technologies themselves but top technologies essentially respecting our environment. The producer adheres to the Ecoefficience motto which actually means maximum efficiency, the lowest possible energy consumption and the amount of harmful emissions below the limit with the above-standard user comfort. The basis for success is the perfect design of Geminox condensing boiler equipped with the latest Siemens LMS control unit. The basic integrated control system has capabilities for easy expansion by alternative energy sources such as solar collectors, heat pumps etc. The unique technical solution ensures these 5 stages of fuel savings: 1) 2) 3) 4) 5) The first stage consists of condensation when such part of heat is utilized which escapes into a chimney in conventional boilers. This additionally gained heat is used to preheat return water from the central heating. The second stage is optimization of the combustion process in the entire power range of the boiler. Due to the constant air / gas ratio the patented circular burner with fuel (natural gas or propane) and air pre-mixing ensures maximum combustion efficiency with a minimum content of harmful emissions. The third stage is adaptable equithermal regulation integrated in Siemens LMS boiler control unit which prevents unnecessary exposure of walls of the building to cold and optimizes thermal comfort in the building and increases the efficiency of the entire heating system. Connection of solar collectors offers above-standard savings. The LMS control unit is prepared for easy expansion of the heating system by other alternative sources. The fourth stage is the intelligent speed control of a low-energy circulating pump of Class A. This feature significantly reduces the return water temperature during transition periods and thereby dramatically expands the zone of the use of condensation. Even the overall reduction in energy consumption is not insignificant. The fifth, the most important stage is represented by a wide linear modulation allowing uniform heating of the building without unnecessary cycling of the boiler. It is no secret that in 3/4 of the heating season 15-50 % of the nominal power of the boiler is fully sufficient. All conventional boilers, in which the power cannot be reduced to the mentioned values while maintaining guaranteed efficiency, thus become very uneconomical for 3/4 of the heating season. One of the strongest benefits of THRs boilers is the ability to operate with maximum efficiency and without cycling even during the most common outdoor temperatures in the range of 5-15 C. This advantage is most evident in modern family houses. Today's new buildings usually have a heat loss around 10 kw. According to the above stated and practically-tested principles it is therefore necessary for the normal operation of such a building to reach the starting power of the boiler lower than 3 kw. If this parameter is not satisfied and the boiler is operated outside its operating range, the so-called cycling begins. Standard boilers with the starting power of 6-8 kw undergo such switching off and on up to 40,000 times per year. This number seems very untrustworthy but after a conversion to heating days in a year it means one start of the boiler every 10 minutes. However, we know from our experience that even minute intervals are no exception. The properly selected Geminox THRs condensing boiler will not make more than 4,000 starts per year. It must be clear even to an amateur what conclusion can be drawn from these data. A unique feature of THRs condensing boilers is the ability to change their output range. The increase or decrease of the boiler output range can be achieved by substituting the affordable burner and reprogramming the operating software. This innovative philosophy allows you to always optimally operate THRs condensing boilers. They do not force investors to make compromise purchases reflecting their future plans related to the increase in demands for heat production (extensions, heated swimming pools, indoor gardens, etc.). This achieves the standardized utilization degree within the range of 106-109% (PCI) in the whole modulated range. The result is 25 to 40% fuel savings compared to conventional boilers. By its focus, Procom Bohemia s.r.o., the exclusive importer of Geminox condensing boilers, supports only environmentally friendly equipment. It also acts environmentally friendly in its daily activities which is proven by the Environmental Management System Certificate ISO 14001:2005 for selling and servicing the ecofriendly thermal equipment. This system significantly helps to reduce the impact of company activities on the environment and also brings a significant reduction in operating costs. Procom Bohemia s.r.o. also strives to maintain a high level of services in the sale and service of eco-friendly thermal equipment and is therefore controlled by the Quality Management System according to ISO 9001:2009. Draft projection 2013 5

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Condensing boilers THRs Condensing boilers THRs Designed even for the most demanding applications Already the fourth generation of condensing boilers with THRs (Trés Haut Rendement - very high efficiency) designation with the Siemens LMS control unit is designed for places where achieving the ideal thermal comfort with minimum operating costs is a clear priority. High quality design elements of boilers, such as the patented stainless steel burner, large stainless steel heat exchanger or stainless steel hot water tank, are complemented with the state-of-the-art Siemens LMS control unit. In addition to standard combustion and safety functions it controls one or more heating circuits including the hot water production. The basic equipment of the automatic system includes also the functions of solar heating, possibly a combination with alternative sources or cascade management. A wide range of power options is complemented with a double-circuit wiring or various combinations with water heating. The offer must cover the wishes of even the most demanding customers. Draft projection 2013 7

Overview of THRs condensing boilers THRs C (DC) THRs M-75H (DC) THRs M-75V THRs 2-17M-75V THRs 1-10C THRs 2-17C THRs 5-25C THRs 2-17M-75H THRs 1-10DC THRs 2-17DC THRs 5-25DC THRs 2-17M-75HDC The boiler with an output range of 0.9 to 9.5 kw is used for heating of buildings with a very little heat loss, i.e. up to 10 kw. The basic version without hot water production can be completed by the external hot water tank (BS, MS, OKC) or a bivalent tank and thus ensure an adequate hot water reserve for its comfortable production even at a very low output range of the boiler. The boiler is typically used in low-energy and passive houses and is often used in conjunction with alternative energy sources (solar heating, heat pumps, etc..). It is the world's number one in the range of output modulation (10-100%). The boiler is also offered in the double-circuit DC version. The boiler with an output range of 2.3 to 16.9 kw is used for space heating with a heat loss of up to 17 kw. The basic version without hot water production can be completed by the external hot water tank (BS, MS, OKC) or a bivalent tank and thus ensure an adequate hot water reserve for its comfortable production even at a very low output range of the boiler. The boiler is specially designed for use in modern newly constructed family houses where it is capable to ensure optimal heating and thermal comfort due to its very low minimum output, without unnecessary and energy-intensive cycling. The boiler is also offered in the double-circuit DC version. The boiler with an output range of 4.8 to 23.9 kw is used for space heating with a heat loss of 17-24 kw, especially conventional family houses and villas. The basic version without hot water production can be completed by the external hot water tank (BS, MS, OKC) or a bivalent tank and thus ensure a top-class comfort for its hot water production even in the case of a duplex living. The boiler is also offered in the double-circuit DC version. The boiler with an output range of 2.3 to 16.9 kw is used for space heating with a heat loss of up to 17 kw. Hot water heating is provided by an integrated stainless steel tank with a capacity of 75l which provides comfortable hot water production for one bathroom with a shower and standard bathtub. Due to its compact size and elegant design the boiler is suitable for placement in the interior and is usually used in flats and small newly constructed houses where it is an ideal solution thanks to its optimal output range and suitably chosen size of a hot water tank. The THRs 2-17M-75H boiler is also offered in a dual-circuit DC version. 8 Draft projection 2013

Condensing boilers THRs THRs SET (DC) THRs B-120 (DC) THRs 10-35 (10-50)C THRs 1-10SET THRs 2-17SET THRs 5-25SET THRs 10-35C THRs 1-10SET-DC THRs 2-17SET-DC THRs 5-25SET-DC THRs 10-50C The boiler with an output range of 9.7 to 35.0 or 9.7 to 48.7 kw is used for larger space heating with a heat loss of 25-35 kw or 25-49 kw, especially in above-standard family houses, villas and commercial buildings. The basic design without a hot water production can be completed by the external stainless steel hot water tank of a suitable size and thus ensure an excellent comfort for hot water production THRs 1-10B-120 THRs 2-17B-120 THRs 5-25B-120 without any compromise. A sufficient boiler output enables you to implement demanding combinations of connecting a THRs 1-10B-120DC THRs 2-17B-120DC THRs 5-25B-120DC pool, air conditioning, heating and hot water heating. The set of the boiler with an external stainless steel hot water tank with a capacity of 120 or 150 litres, or an enamelled tank with a capacity of 120 or 160 litres, provides superior comfort and operating efficiency for use in modern newly constructed buildings with a low heat loss (THRs 1-10; THRs 2-17) as well as in traditional family houses and villas (THRs 5-25). The model with a 120 litre tank is a standard of modern living in single-family houses. Boilers are also offered in a dual-circuit DC version. Hot water heating is provided by an integrated stainless steel tank with a capacity of 120 litres which provides superior comfort and operating efficiency, both in newly constructed and conventional non-insulated family houses and villas. This direct alternative assembly THRs-SET is manly used for indoor location due to its new modern design and compact size. Compact assemblies with an integrated hot water tank are the most popular in a dual-circuit DC version. Boilers can be also connected to smart cascades with communication and you can achieve a linearly modulated output range 9.7 to 70 kw respectively 9.7 to 195 kw with a priority or simultaneous hot water production. These cascades can be completed by any number of heating circuits controlled by an integrated control unit or compatible Siemens RVS controllers of Albatros series. Draft projection 2013 9

Internal description 1 2 3 4 5 7 6 8 10 12 THRs C 9 ፚ The boiler is equipped with a preparation for connecting an external hot water tank with priority heating 11 ፚ The boiler is equipped with an expansion tank with a capacity of 8 l 13 14 15 16 17 A circulating pump of hot water can be installed into a boiler housing. 18 19 20 THRs B-120DC 1. plastic flue 2. stainless steel circular burner with pre-mixing 3. gas fitting 4. optical flame control peephole 5. side cover of the expansion tank space 6. large stainless steel heat exchanger 7. fan with speed control 8. multifunctional Siemens LMS control unit 9. controlled pump of the first heating circuit 10. servo drive + mixing valve of the 2nd heating circuit 11. hot water distributing valve 12. pump of the 2nd heating. circuit The boiler is equipped with an expansion tank with a capacity of 18 l 13. inlet valve of central heating 14. safety sensor of floor heating overheating 15. heating water pressure sensor 16. condensate discharge trap 17. central heating safety valve 18. stainless steel hot water. tank 120 l 19. hot water temperature sensor 20. hot water drain valve THRs M-75V ፚ V (vertical) model has a tank located under the boiler ፚ The boiler is equipped with an expansion tank with a capacity of 10 l 10 Draft projection 2013

Condensing boilers THRs THRs DC THRs M-75H THRs M-75HDC ፚ The boiler is equipped with a complete set for control of a mixing heating circuit ፚ The boiler is equipped with a set for connecting an external hot water tank with priority heating ፚ The boiler is not equipped with an expansion tank ፚ H (horizontal) model has a tank located on the right side next to the boiler ፚ The boiler is equipped with an expansion tank with a capacity of 8 l ፚ The boiler is equipped with a complete set for control of a mixing heating circuit ፚ The boiler is not equipped with an expansion tank ፚ The boiler contains a threeway valve for hot water heating THRs 10-50C THRs 10-35C ፚ The boiler is equipped with a preparation for connecting an external hot water tank with priority heating ፚ The boiler is not equipped with an expansion tank ፚ The boiler is prepared for the installation of a set for connecting an external hot water tank THRs SET-125 (160) THRs SET-120 THRs SET-150 Draft projection 2013 11

Boilers parameters 0.9 to 16.9 kw Boiler type 1-10C* 1-10B-120* 2-17C* 2-17M-75V 2-17M-75H* 2-17B-120* design single tank 120 l single tank 75 l tank 75 l tank 120 l homologation CE0085AT0244 output modulation range % 10 100 15 100 multifunctional control unit SIEMENS LMS 14 LMS 14 second (mixing) heating circuit SIEMENS clip-in AGU 2.550 AGU 2.550 output utilization degree heat input rated power 80/60 C output of heat 50/30 C kw 1.1 9.3 2.5 17.4 kw 0.9 9.5 2.3 16.9 kw 1.1 9.5 2.6 18.3 92/42 CEE % 109 108.5 75/60 C % 96.5 97.6 95.2 97.2 40/30 C % 106.5 108.5 105.8 108 burner circular pre-mixing pre-mixing natural gas consumption G20 m 3 /h. 0.12 0.98 0.26 1.79 propane consumption G31 kg/h. - - combustion air consumption max. m 3 /h. 11 21 flue chimney/turbo B23 + C13 / C33 B23 + C13 / C33 maximum comb. products temp. 75/60 C C 58 67 58 67 comb. products flow rate kg/h 2 16.7 4.5 31.3 usable fan overpressure Pa 100 100 CO2 GN % 8 9,5 8 9,5 GP % - - NOx (class No.5) 3% O2 mg/m 3 25 40 50-50 average mg/m 3 30 50 CO 3% O2 mg/m 3 0 10 0-15 average mg/m 3 3 5 loss during the standby mode heat Tk 70 ºC W 150 176 Tk 40 ºC W 85 93 exchanger flow rate nominal l / h 390 750 min. l / h 60 150 heat exchanger pressure drop Kv 3,6 3,6 operating overpressure maximum water temperature volume of water CH bar 1 3 (4**) 1 3 (4**) HW bar 1 6 1 6 CH C 80 80 HW C 65 65 CH l 2.5 8 2.5 7.5 7.5 8 HW l acc. to cont. 123 acc. to cont. 75 75 123 expansion tank capacity l 8 18 8 8 8 18 maximum power input operation W 23 104*** 37 104*** stand by W 9.2 9.2 voltage/frequency V/Hz 230/50 230/50 electrical protection B C B C 23 33 23 33 IP 42 42 IP 44 44 pump GRUNDFOS - UPM 15 70 UPM 15 70 noise level at minimum output distance 1 m db (A) 31.2 36.4 width mm 540 600 540 540 1000 600 depth mm 361 662 361 467 467 662 height mm 760 1735 760 1500 760 1735 flue mm 80 80 mm 80/125 80/125 gas inlet 1 1 CH inlet/outlet 1 1 HW inlet/outlet - 1-3/4 3/4 1 output of condensate discharge mm 20 25 20 25 20 25 outlet of safety valve 3/4 3/4 weight w/o water kg 63 141 63 114 114 141 * also in a double-circuit DC version ** on request *** in a dual-circuit DC version it is necessary to add the power of a three-speed pump for MTO I. = 40 W, II. = 60 W, III. = 80 W 12 Draft projection 2013

Condensing boilers THRs 4.8 to 48.7 kw Processed in the system TechCON Boiler type 5-25C* 5-25M-75V 5-25M-75H* 5-25B-120* 10-35C 10-50C design single tank 75 l tank 75 l tank 120 l single single homologation CE0085AQ0543 CE0085AR0323 CE0085AR0323 output modulation range % 20 100 20 100 20 100 multifunctional control unit SIEMENS LMS 14 LMS 14 LMS 14 second (mixing) heating circuit SIEMENS clip-in AGU 2.550 AGU 2.550 AGU 2.550 heat input kw 5.0 24.5 10.0 35.0 10.0 49.5 output standardized utilization degree rated power 80/60 C kw 4.8 23.9 9.5 33.0 9.7 48.7 output of heat 50/30 C kw 5.4-25.8 10.0-36.0 10.0 52.6 92/42 CEE % 108.5 108.2 108.2 75/60 C % 96.5 97.5 95.9 97.1 95.9 97.1 40/30 C % 106-108 105.1-107.7 105.1-107.7 burner circular pre-mixing pre-mixing natural gas consumption G20 m 3 /h. 0.53 2.59 1.06 3.71 1.06 5.29 propane consumption G31 kg/h. 0.39 1.90 0.78 2.73 0.78 3.88 combustion air consumption max. m 3 /h. 30 43 61 flue chimney/turbo B +C /C B +C /C maximum comb. products temperature 75/60 C C 58 67 58 67 comb. products flow rate kg/h 9 44.1 18 59.4 18 90 usable fan overpressure Pa 100 100 CO NO (class No.5) CO 2 x loss during the standby mode heat exchanger flow rate operating overpressure maximum water temperature volume of water GN % 8 9.5 8 9.5 GP % 10.5-11.5 10.5-11.5 3 % O 2 mg/m 3 10-40 26-51 30-55 average mg/m 3 16 31 36 3 % O 2 mg/m 3 0 30 0 25 average mg/m 3 10 8 T 70 C W 150 150 k T 40 C W 85 85 k nominal l/h. 1030 1500 2000 min. l/h. 300 450 450 CH bar 1 3 (4**) 1 3 (4**) 1 3 (4**) HW bar 1 6 - - CH C 80 80 HW C 65 - - CH l 2.5 8 8 8 5 HW l acc. to cont. 75 75 123 acc. to cont. expansion tank capacity l 8 8 8 18 external maximum power input operation W 23 110*** 53 200 voltage/frequency electrical protection 23 13 33 23 13 33 standby W 9.2 9.2 V/Hz 230/50 230/50 B 23 IP 42 42 C 33 IP 44 44 pump GRUNDFOS - UPM 15 70 UPS 15 70 noise level at minimum output distance 1 m db (A) 31.2 36.4 40.2 width mm 540 540 1000 600 765 depth mm 361 467 467 697 361 height mm 760 1500 760 1735 760 flue B 23 mm 80 80 C 33 mm 80/125 80/125 gas inlet 1 1 CH inlet/outlet 1 1 HW inlet/outlet - 3/4 3/4 1 - output of condensate discharge mm 20 32 20 25 20 output of safety valve 3/4 3/4 weight w/o water kg 63 114 114 141 78 * also in a double-circuit DC version ** on request *** in a dual-circuit DC version it is necessary to add the power of a three-speed pump for MTO I. = 40 W, II. = 60 W, III. = 80 W Draft projection 2013 13

C G D K C D C D Mounting dimensions H THRs I THRs H THRs B-120 E F E F E F top view bottom view top view Ø 7 Ø 7 B A A J A A B B A A A A B THRs M-75H THRs C THRs 50C Type A B C D E min. F min. G H I J THRs C, DC 85 100 495 265 100 100-79 56 - THRs 10-50C 150 82,5 495 265 100 100-79 56 - THRs M75 V 85 100 635 265 100 100 600 79 56 - THRs M75 H (DC) 170 110 495 265 100 100-79 56 185 Ø 7 THRs B-120 (DC) - - - - 250 150-371 - - B A A A A B The method of flue Flue with an insert in the chimney, air supply from the space with the boiler K Ø 80 250 mm Ø 110 450 mm Ø 7 Flue with an insert in the chimney, air supply by the chimney Ø 125/80 300 mm B A A A A B THRs M-75V Flue with an insert in the chimney, air supply by the pipe from the outside Ø 80 600 mm Ø 80 350 mm Warning: ፚ When designing the boiler location it is essential to observe the distances of E min., F min. ፚ The boiler must be freely and safely accessible. ፚ The minimum distance between the boiler and hot water tank (e.g. in a THRs SET-120 set) is 230 mm. Failure to observe these requirements would prevent installation and servicing. If smaller distances are necessary, consult the technical department of the importer. 14 Draft projection 2013

495 760 495 59 55.4 59 55.4 367 367 Condensing boilers THRs Connecting dimensions THRs 1-10C, 2-17C, 5-25C THRs 10-35C, 10-50C 2 9 6 5 7 3 8 2 9 7 6 3 8 4 20.6 4 42 55.5 184.5 100 61.5 1 80.4 120 1 51.6 51 760 19 27 323.5 56 117 49 67.5 120 540 765 1. flue DN 80 2. gas inlet 1 3. CH outlet 1 4. CH return pipe 1 5. outlet to a HW tank 1 6. HW tank return pipe 1 7. condensate discharge DN20 8. safety valve overflow 3/4 9. electrical outlets 1. flue DN 80 2. gas inlet 1 3. CH outlet 1 4. CH return pipe 1 5. outlet to a HW tank 1 6. HW tank return pipe 1 7. condensate discharge DN20 8. safety valve overflow 3/4 9. electrical outlets Draft projection 2013 15

635 600 1500 495 760 19 63.6 55.4 59 19 55.4 59 480 480 THRs 2-17M-75V, 5-25M-75V THRs 2-17M-75H, 5-25M-75H 9 7 5 6 3 2 9 7 3 8 4 5 6 2 54.8 8 51.6 4 42 226.2 75.3 100 365 70 121 47.6 65 91.4 66 79.3 61.5 80 49.2 1 1 82.5 120 82.7 120 1000 540 1. flue DN 80 2. gas inlet 1 3. CH outlet 1 4. CH return pipe 1 5. cold water inlet 3/4 6. HW outlet 3/4 7. condensate discharge DN 20 8. safety valve overflow 3/4 9. electrical outlets 1. flue DN 80 2. gas inlet 1 3. CH outlet 1 4. CH return pipe 1 5. cold water inlet 3/4 6. HW outlet 3/4 7. condensate discharge DN 20 8. safety valve overflow 3/4 9. electrical outlets 16 Draft projection 2013

203 388.9 190 162.5 495 760 925.8 55.4 59 367 59 236 Condensing boilers THRs THRs 1-10DC2-17DC, 5-25DC Frame with an expansion tank for THRs DC 2 12 6 5 7 3 8 100 61.5 540 10 9 20.6 4 11 42 55.5 184.5 100 51.6 11 54.5 51.6 20.6 58.5 70 55.5 56 42 61.5 348 199 1 80.4 120 119.5 540 547 499.1 1. flue DN 80 2. gas inlet 1 3. direct heating circuit outlet 1 (radiators) 4. direct heating circuit return pipe 1 (radiators) 5. outlet of HW tank heating 1 6. return pipe of HW tank heating 1 7. condensate discharge DN20 8. safety valve overflow 3/4 9. return pipe of the mixing heating circuit 1 (floor heating) 10. outlet of the mixing heating circuit 1 (floor heating) 11. expansion tank connection 1" 12. electrical outlets Draft projection 2013 17

495 760 765±10 1735±10 19 55.4 59 480 THRs 2-17M-75H DC, 5-25M-75H DC THRs B-120, B-120 DC 2 10 9 12 7 3 8 4 11 5 6 51.6 60.5 42 226.2 75.3 100 365 70 121 1 114 82.7 120 1000 645 1. flue DN 80 2. gas inlet 1 3. direct heating circuit outlet 1 (radiators) 4. direct heating circuit return pipe 1 (radiators) 5. cold water inlet 3/4 6. HW outlet 3/4 7. condensate discharge DN20 8. safety valve overflow 3/4 9. return pipe of the mixing heating circuit 1 (floor heating) 10. outlet of the mixing heating circuit 1 (floor heating) 11. expansion tank connection 1" 12. electrical outlets 1. flue DN 80 2. gas inlet 1 3. direct heating circuit outlet 1 4. direct heating circuit return pipe 1 5. cold water inlet 3/4 6. HW outlet 3/4 7. condensate discharge DN 20 8. safety valve overflow 3/4 Only double-circuit DC version 9. outlet of the mixing heating circuit 1 10. return pipe of the mixing heating circuit 1 Note: Circulation inside the tank uses free openings in the cover. 18 Draft projection 2013

36 259.6 373.6 662 584 548 17 892±10 818±10 805±10 843±10 876±10 910±10 934±10 976±10 1009±10 1043±10 1735±10 Condensing boilers THRs 228 172 172 116 116 60 60 2 4 9 3 10 8 5 7 6 7 173 235 235 600 120 110.7 8 4 3 5 6 10 9 2 Draft projection 2013 19

Hydraulic characteristics Characteristics of Grundfos UPM 15-70 pump + pressure drop of the heat exchanger of THRs 1-10, 2-17, 5-25 boiler The data are processed in the system TechCON (m) 7 6 5 4 K = 3.6 v 3 2 Pressure drop of the heating 1 set e.g. 17 kpa Pressure drop of the heat exchanger THRs 0 0 500 573 l/h. (10 kw - T 15 C) 1000 975 l/h. (17 kw - T 15 C) 1500 1443 l/h. (25 kw - T 15 C) 2000 2500 3000 3500 (l/h) Unless there is no curve available after the sum of the pressure drops of the heat exchanger and the designed heating set, it is necessary to supplement the heating system with the extra circulating pump. Characteristics of Grundfos UPS 15-50 pump for the second mixed heating circuit THRs DC The data are processed in the system TechCON (m) 5.0 4.5 4.0 3.5 K = 4 v 3.0 2.5 2.0 1.5 1.0 0.5 0 500 1000 1200 kg/h 1500 1290 kg/h 2000 2500 3000 3500 l/hour 7 kw at T 5 C 12 kw at T 8 C Grundfos UPS 15-50 pump and a three-way valve with ESBE servo-drive (Kv = 4) are integrated during production in the THRs DC boiler and are parts of the hydraulic connection of the second (mixed) heating circuit designed for floor heating (see diagram T2). The design process of the mixed heating circuit (MTO): With the design temperature difference (according to ČSN EN 1264 we design T = 5 C for floor heating) and the given heat loss of the floor heating circuit the required flow is determined for MTO. The pressure drop of the mixing valve (K v = 4) is subtracted from the flow. The subtraction of the heat exchanger pressure drop is performed by increasing the temperature of boiler water by 5 C compared to MTO. Therefore, we subtract the heat exchanger pressure drop at a lower flow rate but at the same power! This elevation difference is preset by the boiler control. Example: If we design MTO with a gradient of T = 5 C, then the pressure drop of the boiler heat exchanger (K v =3.6) is subtracted at T = 10 C. It is necessary for the MTO design that the required overpressure remains to cover the pressure drop of the system. If the MTO pump will not cover the sum of pressure drops, it is necessary to design the pump with higher performance. It is not possible to replace the MTO pump in a double-circuit THRs DC boiler. It follows that in this case you cannot use the double-circuit THRs DC boiler. So we choose the hydraulic connection according to 2B and 2C diagrams. Examples MTO limit performances: 7 kw at T 5 C, approx. 17.5 kpa remains for MTO. 12 kw at T 8 C, approx. 17.5 kpa remains for MTO. 20 Draft projection 2013

flow quantity (m 3 /h) Condensing boilers THRs Characteristics of Grundfos UPS 15-70 pump + optimized pressure drop of the heat exchanger of THRs 10-35, 10-50 boiler The data are processed in the system TechCON (m) 8 7 6 5 K = 3.6 v 4 3 2 1 0 0 500 1000 1500 2000 2500 3000 3500 4000 4500 l/h. Geminox optimized the stainless steel heat exchanger by reducing the pressure drop which improved the utilization in the most common applications. Unless there is no curve available after the sum of the pressure drops of the heat exchanger and the designed heating set, it is necessary to supplement the heating system with the extra circulating pump. A set for HW heating in the external tank/thrs AB-B 100 90 80 70 60 50 40 30 20 10 AB-A 0 0.1 0 10 20 30 40 50 60 70 80 90 100 0.01 0,1 1 pressure drop (m v. sl.) 10 1 Kv = 8.6 The valve is integrated in the boiler so it is necessary to take into account its hydraulic loss when designing the heating system with priority HW heating. Draft projection 2013 21

The control system of THRs condensing boilers In recent years we have seen a sharp increase in requirements for the systems intended to control condensing boilers. These requirements have already exceeded the basic requirements for safe operation of gas appliances and combustion process control. Nowadays, the equithermal control of the heating circuit and HW production are a common standard of the burner automatic system of the boiler. But even such a concept of the control board is not able to systematically work in technologies with several heating circuits, in boiler cascades or in multivalent systems. Nor is it able to provide constant monitoring of the entire application using remote monitoring via the internet connection. Siemens, the supplier of the entire control system of condensing boilers, combined its long-time experience with the latest results of the work of several development teams and launched a topclass concept. The resulting product is the burner automatic system. However, in its basic design it must not unnecessarily increase the price of the boiler. Therefore, it only has inputs and outputs for above-standard control of one equithermal circuit and HW production. However, it also offers the possibility of separate control of the circulating pump and addition of sensors and control of HW solar heating. This feature gives Geminox boilers a competitive advantage. The users of this unique technology are also allowed to select from several types of room units, economical or highly comfortable, and from their wireless models. In the case of larger technologies (e.g. several heating circuits, cascades) the LMS burner automatic system has a absolutely unique feature. It integrates almost all functions of the Siemens RVS control system of Albatros2 series. After connecting the extension modules (they complement inputs and outputs) to the LMS automatics we obtain the same opportunities of control of resources (solid fuel boiler, solar collectors) and appliances (up to three mixed heating circuits, swimming pool, external appliances, etc.). The extension modules are offered as accessories, in a version for installation in the boiler (Clip-in) and in a version for installation into the box (for example at a mixed heating circuit). At first glance the unnecessary duplication of features always offers the ideal combination of the system set with regard to the price, building layout, the length of cable routes and many other criteria. As an example, the following two typical cascade applications can be mentioned. The first is a simple "legislative" cascade of 2 x 49kW with HW production and one mixed circuit (Fig. 22.1). The additional RVS regulation can be left out here and we can take advantage of the properties of the boiler automatic system. Savings in this application reach tens of hundreds of dollars. The second case can be a block of flats where after disconnecting from the central heating system the distributor with heating circuits remains in the basement and the boilers cascade will be installed in the attic (Fig. 22.2). Here, from the perspective of price, labour-intensiveness and cabling it will be more convenient to use the RVS regulator to control the boiler room and connect the boilers only by a two-wire communication cable. The quality of the control system is a prerequisite for correct and optimal functioning of any heating system. With the increasing complexity the work of service technicians is still more and more important. Siemens took this into account when creating the system. Due to the unification of the control concept, menu structure, PC tools and sharing of functional blocks it is now possible to ensure 100% transfer of gained knowledge and equipment of technicians between equithermal regulators, boiler automatic systems and heat pumps, for example. In order to diagnose problems the system has detailed information on the conditions of individual parts of the technology, showing actual and desired temperatures. For more demanding users that require remote monitoring and convenient adjustment of parameters via PC, mobile phones or smart TV and in order to completely improve the service operability it is beneficial to complement the boiler automatic system with Webserver OZW672 for Internet communication. Fig. 22.1 Fig. 22.2 22 Draft projection 2013

Condensing boilers THRs Control system technology Wireless receiver QAA78 Wireless multifunctional room unit QAA58 Wireless room unit QAC34 Outdoor sensor + AVS13 Wireless transmitter for outdoor sensor QAC34 outdoor sensor Service tool QAA75 QAA55 QAA55 QAA75 Multifunctional Room room unit unit Optional accessories for the 2nd heating circuit for THRs DC version OCI700 Extension Clip-In modules Communication module RVS regulators Web server Possibility of up to three modules Built-in module RVS43.345 Equithermal regulator OZW672 Draft projection 2013 23

CLIP-IN No. 2 (solar) CLIP-IN No.1 (2nd heating circuit) Boiler control unit boiler automatic system is a digital control unit designed for gas condensing boilers with a modulated burner. In terms of priorities, its main task is to ensure the safe operation of a gas appliance in all circumstances and optimum control of the combustion process. Its biggest advantage, compared to the competing products, is a possible extension by a group of accessories enabling the use of all its features. To connect peripherals the unit has an internal BSB bus (Boiler System Bus). It is a firm connection using a two-wire, respectively three-wire cable. Two neighbouring devices communicate over distances up to 200 m with a limit of the total length of wiring to 400 m. If there is no pre-prepared wiring, you can connect the room devices and outdoor sensor by using radio communication at 868 MHz. The distance for radio communication connection cannot be unambiguously determined as it depends on the structure of the building. Generally, the distance of 30 m is stated, or even three walls/two floors. In structures with difficult radio signal propagation or to extend the reach the product range also includes a signal amplifier. The second communication bus which serves to connect the additional RVS regulation or other automatic systems is LPB (Local Process Bus). It is used in larger systems of resources and appliances. This option is gained automatically after connecting the communication Clip-in module. Boiler wiring diagram LED - OFF LMS without power supply LED - ON LMS running LED - flashes LMS failure 24 Draft projection 2013

Condensing boilers THRs Basic accessories Outdoor sensor QAC34 In most cases, the system of equithermal control system is chosen for heating the building, with or without the influence of the interior temperature. The equithermal control system of Geminox condensing boilers ensures perfect thermal comfort throughout the building, significantly reducing energy consumption and extending the equipment life. The condition of use of the system is to install the outdoor sensor. Information about the outside temperature provides also some security features such as protection of the heating system from local freezing. The sensor is connected to the control unit by a two-wire cable in a maximum distance of 120 m. Due to its timeless design it does not disturb the appearance of the facade. Integrated control panel AVS37.294 The basic user interface of THRs boilers is the control panel AVS37.294 which allows access to all parameters. These are clearly arranged to three service levels according to the operator authorization. The system diagnostic has information on actual and desired temperatures and operating conditions of each component of the technology. The control panel is integrated into the design of the Geminox boiler and is connected to the control unit by a special flat cable. 1. Electrical connection 230V-50 Hz 2. Programmable output - QX2* 3. Switching valve of HW heating - QX3 4. 10; 17; 25 kw programmable output - QX1* 5. 35; 50 kw pump TO 230 V - QX1* 6. 10; 17; 25 kw pump TO 230 V, power supply of the Clip-in 7. extension module - AUX2 8. 35; 50 kw power supply of the Clip-in extension module - AUX2 9. Fan 230 V - AUX1 10. Emergency thermostat (STB) 230 V 11. Ignition transformer 12. Gas fitting 230 V 13. Ionization electrode 14. Programmable input - H6* 15. Freely programmable sensor - BX1* 16. Combustion products sensor - BX2 17. Hot water sensor ECS2 - BX3 18. Hot water sensor ECS1 - B3/B38 19. Outdoor sensor - B9 20. Programmable input - H1* 21. Programmable input - H4* 22. Programmable input - H5* 23. Clip-in LPB 24. Pressure sensor - H3 25. Temperature sensor of the CH return pipe - B7 26. Boiler temperature sensor - B2 27. Multifunctional room unit (QAA75, QAA55...) 28. Control panel AVS37 - X12 29. Radio module connection (antenna AVS71) 30. Restore factory parameters - X12 clamp 31. Connection of the clip-in module (optional) 32. Fan PWM control 33. Circulating pump PWM control 34. Fuses (2 x 6.3 A (H250)) 35. Clip-in pump of the 2nd heating circuit (Q6) 36. Clip-in pump of the solar heating (Q5) 37. Motor of the mixing valve (clip-in of the 2nd heating circuit) 38. Relay output, available in QX22 for solar clip-in* 39. Relay output, available in QX21 for solar clip-in* 40. Sensor output of the 2nd heating circuit (clip-in of the 2nd heating circuit) 41. Relay input, available in BX22 for clip-in of the 2nd heating circuit 42. Solar sensor (solar clip-in) 43. Water temperature sensor at the bottom of the solar hot water tank (solar clip-in) 44. Addressing clip-in N. 1 = 2nd heating circuit (optional) 45. Addressing clip-in no. 2 = solar (optional) 46. ON / OFF control 47. LED (power supply or LMS failure) * Optional, see clip-in (= extension module) QX... / BX... Draft projection 2013 25

Boiler accessories for BSB bus connection Room unit QAA75.611 Comfortable room unit with a backlit display (three-wire connection as a condition). It complements the control strategies with the equithermal regulation with the influence of room temperature or purely space control. It is equipped with controls for quick change of the desired comfortable temperature, operating mode of the heating circuit, switching hot water on/off and with a presence button. There is also an information button to display temperatures and operating conditions of equipment. The device allows full access to all control parameters including time programmes adjustment as in the integrated control panel of THRs boilers. It can be assigned to a specific heating circuit or it can control all circuits together. Room unit QAA55.110 A basic room unit with a two-wire connection. It complements the control strategies with the equithermal regulation with the influence of room temperature or purely space control. It is equipped with controls for correction of the desired comfortable temperature, switching the operating mode of the heating circuit, switching hot water on/off and with a presence button. The unit is assigned to a particular heating circuit and is complemented by the possibility of operation deadlock for the installation in public areas. Extension clip-in module The basic function of the expansion module is to complement the terminal box of the boiler automatic system with other two sensor inputs, one H input (potential-free contact/0-10v) and three relay outputs to configure additional functions. A typical application is the control of the mixed heating circuit as in THRs DC boilers. However, the possibilities of use of inputs/outputs are much broader. The structural design is adapted to the installation directly in the boiler. The electronics cabinet of Geminox boilers has prepared positions for a maximum number of three modules. A multiple flat cable with keyed connectors is used for connection. Extension module AVS75.390 In terms of features and use, this module is identical with the clip-in module. The main difference is in the type of construction. It is designed for the installation outside the boiler into the junction box near the technology (e.g. mixing heating circuit, wood boilers). The connection cable can be extended up to 200 m. PWM clip-in module AGU2.551 A built-in module is designed for connecting the boiler with the master control. It contains two PWM signal converters to 0-10 V signal and two potential-free relays. The master control can get information about the fan speed (current boiler output) and speed of the boiler pump using the standard 0-10 V signal. The outputs of the boiler operation and failure can be connected to the relay. The module is powered from the BSB bus and does not limit the number of connectable extension modules (AVS75.390). 26 Draft projection 2013

Condensing boilers THRs Wireless accessories for THRs boiler Radio transmitter/receiver AVS71.390 The basic prerequisite for the use of wireless peripheral devices with the boiler automatic system is the connection of the radio module. RF module AVS71.390 is the basic model with an integrated flat cable (1 m) for connection to a specific connector fitted on the automatic system board. This fixed connection may limit the choice of location. The module must not be fitted to the interior of the boiler. Therefore, we prefer to use the module AVS71.393 described below. Radio transmitter/receiver AVS71.393 Also this RF module extends the features of the control board of the possibility to connect radio peripherals. Unlike the AVS71.390 module it is connected by a three-wire cable to the BSB bus and its installation is therefore possible to a distance of 200 m from the boiler. This allows us to choose an optimal location for installation with the best reception. Room units QAA78.610 and QAA58.110 Both radio room units are identical copies of wire models QAA75.611 and QAA55.110. They allow the use of all their functions without specific demands for placement (while respecting the basic installation rules). The only difference is the absence of the backlight. The units communicate bidirectionally with the possibility of testing the quality of signal transmission. They are powered by AA batteries with a life expectancy of up to three years. Outdoor temperature transmitter AVS13.399 The device is installed in the interior and has an outdoor sensor QAC34 placed in the same position on the outside of the perimeter wall connected by a two-wire cable. It is important for the easy replacement of batteries and the battery capacity is not adversely affected by low ambient temperature. The outdoor temperature transmitter is powered by AAA batteries with a life expectancy of up to three years. When installing the outdoor sensor QAC34 it is necessary to respect the basic installation rules. RF signal repeater AVS14.390 In case of installation in buildings with very poor radio signal propagation or to extend the reach the system can be complemented by the AVS14.390 repeater. The transmitting power is identical with other elements and allows the range to be doubled. It is powered by a drawer adapter that is included. Draft projection 2013 27

LPB communication LPB clip-in module Communication module is used to connect multiple boilers in cascades and/or to make connection with RVS and RVD regulators. The module is equipped with a special connector and does not limit the number of connected extension clip-in modules (AVS75.390). The maximum number of devices on the LPB bus is 16. Temperature sensors Contact sensor QAD36 It is the most common sensor for sensing heating water temperature. Its advantage is easy installation on a pipe with a diameter of 15-140 mm, without using the heat sink. The sensor is equipped with a sensing element NTC 10k Ohm. It is connected to the control unit by a two-wire cable with a maximum distance of 120 m. The temperature range is -30 to 125 C. Heat sink sensor QAZ36 The sensor is designed to sense the temperature in the HW tank or in the storage tank. If the pipe is equipped with a heat sink the sensor can be also used for measuring the temperature of heating water. Its advantage is low price. It comes with an integrated cable, 6 m in length. It is connected to the control unit by a two-wire cable with a maximum distance of 120 m. The temperature range is 0 to 95 C. Heat sink solar sensor QAZ36.481 It is a special version of the heat sink sensor NTC 10k Ohm with a higher temperature range of -30 to 200 C, with a 2m integrated cable with silicone insulation. It is primarily intended to measure the temperature of solar collectors but its another very good use is also measuring the temperature of embedded fireplace inserts with a heat exchanger. It is connected to the control unit by a two-wire cable with a maximum distance of 120 m. 28 Draft projection 2013

Condensing boilers THRs Web server Remote control of the heating system via the Internet Ideal tool for easy control and operation of the boiler control system from anywhere in the world. In case of a fault an alarm is sent via email or SMS to predefined recipients. By installing the Web server the user obtains the possibility to be connected to the system of comprehensive maintenance services including remote monitoring by the central control centre. Providing the equipment importer with the access to the web server extends the boiler warranty by 12 months. Webserver OZW672 Web server OZW672 offers its users the ability to remotely control and receive alarm messages via the Internet using a PC or smartphone. Commissioning and operation are very simple. Since the web server is directly integrated into the OZW672, all you need is the Internet connection in the house. Therefore, the use of the web server requires no additional operating costs. If OZW672 is connected to the boiler control unit, all setting changes are automatically taken over and are immediately available on-line. For easy and fast commissioning of the device you have a starting page available with the most important data points. Draft projection 2013 29

Ethernet TCP/IP Webserver Connect GW RB750 Connecting the web server to the Internet environment can be performed in two ways: ፚ Connection using a static public IP address - established by the Internet provider. ፚ Connection using RB750 - webserver Connect GW. A simple system to of web server connection to the Internet network without establishing a static public IP address. The device automatically ensures a secure port redirecting through the Brilon server farm. The system requires only a connection to the electricity network and the Internet. This service is completely free and is suitable for large networks in commercial buildings. ACS Tool remote administration Web server is a very useful tool for remote monitoring of equipment by your maintenance technician. It allows immediate intervention to the boiler control system and long-term monitoring of operating parameters. Due to the service tool you can fully remotely manage also the parameters of the burner automatic system. Wiring diagram with a static IP address Internet DSLrouter Ethernet TCP/IP DSLrouter Web browser Web browser IP address: 192.168.2.199 Subnemt ask: 255.255.255.0 Defaulgtateway: 192.168.2.1 PreferredDNSserver: 192.168.2.1 IP address: 192.168.2.1 Subnemt ask: 255.255.255.0 OZW672... IP address: 192.168.2.10 Subnemt ask: 255.255.255.0 Defaulgtateway: 192.168.2.1 PreferredDNSserver: 192.168.2.1 30 Draft projection 2013

Condensing boilers THRs A generated individual hydraulic diagram provides a quick overview of the most monitored parameters. Any data points can be easily added and edited. Clear user interface allows easy control and monitoring of the system on-line. Full remote administration by the maintenance technician using the service program saves time and money. Draft projection 2013 31

Recommended connection diagrams Considering a huge number of combinations of sources and equipment connections that can be controlled by the LMS boiler automatic system in combination with clip-in modules and the RVS regulator system the following list of recommended connections was developed. The aim was not to describe all possibilities but the most common technologies. Those were chosen with regard to the typical customer requirements, experience from implemented installations and long life. The key to work with the diagram catalogue BSB Operation using room units B9 QAC34 B2 230 V/50 Hz 10 A B7 ROOM UNIT QAA55.110 ROOM UNIT QAA75.611 EXP Q1 Y3 RADIATORS OR FLOOR HEATING Q4 (QX2) TV Additional function: HW circulating pump (Q4) B3 B6 (BX1) B31 (BX2) SV Q5 (QX1) Additional function: collector pump (Q5) collector sensor (B6) HW solar sensor (B31) K18 (QX23) B13 (BX21) K18 (QX23) Additional function: pool pump (K18) pool sensor (B13) 32 Draft projection 2013

Condensing boilers THRs It is always the connection of the gas boiler or boiler cascade and the heating circuit. If the basic connection allows it, the diagram is always completed with an alternative for connecting HW, additional heating circuits, sources (solar, fireplace), swimming pool or external appliances. Our goal was to create the basis for a simple design of the system in a recommended hydraulic connection. It contains a basic description and specification of necessary components to order. There are also necessary basic information for wiring and placement of sensors. Operation using wireless room units Terminology of sensors and relays WIRELESS ROOM UNITS: AVS71.390 - WIRELESS RECEIVER QAA58.110 - ROOM RECEIVER QAA78.610 - ROOM UNIT ROOM UNIT QAA78.610 WIRELESS RECEIVER AVS71.390 ROOM UNIT QAA58.110 QAZ36.526 - HEAT SINK HW B3 (PART OF THE HW HEATING KIT) QAZ36.526 - HEAT SINK HW B3 (PART OF THE HW HEATING KIT) QAZ36.481 - HEAT SINK SOLAR B6 QAZ36.526 - HEAT SINK BOTTOM HW B31 Multifunctional inputs and outputs BX1 BX3 QX1 QX2 BX1 BX3 QX1 QX2 Q4 BX1 BX3 B6 B31 LEGEND B1 SETUP TO1 B12 SETUP TO2 B13 POOL B15 PRE-REGULATION B2 BOILER B22 WOOD BOILER B3 TOP HW B31 BOTTOM HW B39 HW CIRCULATION B4 ACCUMULATION TOP B41 ACCUMULATION BOTTOM B42 ACCUMULATION INTERMEDIATE B6 COLLECTOR B7 RETURN PIPE B10 CASCADE SETUP B70 CASCADE RETURN PIPE B73 COMMON RETURN PIPE B8 COMBUSTION PRODUCTS TEMP. B9 OUTDOOR TEMP. Q1 BOILER PUMP Q2 PUMP TO1 Q3 HW PUMP/VALVE Q4 HW CIRCULATION PUMP Q5 COLLECTOR PUMP Q6 PUMP TO2 Q10 WOOD BOILER PUMP Q11 ACU CHARGING PUMP Q14 FEED PUMP Q15 PUMP H1 Q18 PUMP H2 Q19 PUMP H3 Q20 DIRECT HC PUMP Y1/2 MIXER TO1 Y5/6 MIXER TO2 Y15 RETURN PIPE VALVE Y19/20 PRE-REGULATION VALVE K6 EL. HEATING ELEMENT HW K8 SOLAR PUMP FOR ACU K18 SOLAR PUMP FOR POOL QX1 Q5 QX2 Q4 - EXTENSION MODULE QAZ36.526 - HEAT SINK HW B3 (PART OF THE HW HEATING KIT) QAZ36.481 - HEAT SINK SOLAR B6 QAZ36.526 - HEAT SINK BOTTOM HW B31 QAD36 - POOL CONTACT B13 BX1 BX3 B6 B31 QX1 QX2 Q5 Q4 BX21 BX22 H2 B13 QX21 QX22 QX23 K18 Draft projection 2013 33

Connection diagram T1 Basic connection of the THRs condensing boiler intended for one direct heating circuit (radiators or floor heating) with a possibility to be extended by HW heating in an indirectly heated tank by a bypass valve (absolute priority). Furthermore, the control can be supplemented by HW solar heating or HW and a swimming pool. BSB B9 QAC34 B2 230 V/50 Hz 10 A B7 ROOM UNIT QAA55.110 ROOM UNIT QAA75.611 EXP Q1 Y3 RADIATORS OR FLOOR HEATING Q4 (QX2) TV B3 B6 (BX1) B31 (BX2) SV Q5 (QX1) K18 (QX23) B13 (BX21) K18 (QX23) 34 Draft projection 2013

Condensing boilers THRs WIRELESS ROOM UNITS: AVS71.390 - WIRELESS RECEIVER QAA58.110 - ROOM RECEIVER QAA78.610 - ROOM UNIT ROOM UNIT QAA78.610 WIRELESS RECEIVER AVS71.390 ROOM UNIT QAA58.110 QAZ36.526 - HEAT SINK HW B3 (PART OF THE HW HEATING KIT) QAZ36.526 - HEAT SINK HW B3 (PART OF THE HW HEATING KIT) QAZ36.481 - HEAT SINK SOLAR B6 QAZ36.526 - HEAT SINK BOTTOM HW B31 BX1 BX3 QX1 QX2 BX1 BX3 QX1 QX2 Q4 BX1 B6 BX3 B31 QX1 Q5 QX2 Q4 LEGEND B1 SETUP TO1 B12 SETUP TO2 B13 POOL B15 PRE-REGULATION B2 BOILER B22 WOOD BOILER B3 TOP HW B31 BOTTOM HW B39 HW CIRCULATION B4 ACCUMULATION TOP B41 ACCUMULATION BOTTOM B42 ACCUMULATION INTERMEDIATE B6 COLLECTOR B7 RETURN PIPE B10 CASCADE SETUP B70 CASCADE RETURN PIPE B73 COMMON RETURN PIPE B8 COMBUSTION PRODUCTS TEMP. B9 OUTDOOR TEMP. Q1 BOILER PUMP Q2 PUMP TO1 Q3 HW PUMP/VALVE Q4 HW CIRCULATION PUMP Q5 COLLECTOR PUMP Q6 PUMP TO2 Q10 WOOD BOILER PUMP Q11 ACU CHARGING PUMP Q14 FEED PUMP Q15 PUMP H1 Q18 PUMP H2 Q19 PUMP H3 Q20 DIRECT HC PUMP Y1/2 MIXER TO1 Y5/6 MIXER TO2 Y15 RETURN PIPE VALVE Y19/20 PRE-REGULATION VALVE K6 EL. HEATING ELEMENT HW K8 SOLAR PUMP FOR ACU K18 SOLAR PUMP FOR POOL - EXTENSION MODULE QAZ36.526 - HEAT SINK HW B3 (PART OF THE HW HEATING KIT) QAZ36.481 - HEAT SINK SOLAR B6 QAZ36.526 - HEAT SINK BOTTOM HW B31 QAD36 - POOL CONTACT B13 BX1 B6 BX3 B31 QX1 Q5 QX2 Q4 BX21 B13 BX22 H2 QX21 QX22 QX23 K18 Draft projection 2013 35

Connection diagram T2 Basic connection of the double-circuit THRs DC condensing boiler intended for one direct and one mixed heating circuit with a possibility to be extended by HW heating in an indirectly heated tank by a bypass valve (absolute priority). Furthermore, the control can be supplemented by HW solar heating or HW and a swimming pool. B9 QAC34 BSB B2 ROOM UNIT QAA55.110 230 V/50 Hz 10 A B7 ROOM UNIT QAA55.110 ROOM UNIT QAA75.611 ROOM UNIT QAA75.611 FLOOR HEATING B12 Y5/6 STB Q6 COMPLET E! Q1 EXP Y3 RADIATORS Q4 (QX2) TV B3 B6 (BX1) B31 (BX2) SV Q5 (QX1) K18 (QX23) B13 (BX22) K18 (QX23) 36 Draft projection 2013

Condensing boilers THRs WIRELESS ROOM UNITS: AVS71.390 - WIRELESS RECEIVER QAA58.110 - ROOM RECEIVER QAA78.610 - ROOM UNIT ROOM UNIT QAA78.610 WIRELESS RECEIVER AVS71.390 ROOM UNIT QAA58.110 QAZ36.526 - HEAT SINK HW B3 (PART OF THE HW HEATING KIT) QAZ36.526 - HEAT SINK HW B3 (PART OF THE HW HEATING KIT) QAZ36.481 - HEAT SINK SOLAR B6 QAZ36.526 - HEAT SINK BOTTOM HW B31 LEGEND BX1 BX3 BX21 BX22 H2 B1 SETUP TO1 B12 SETUP TO2 B12 B13 B13 POOL B15 PRE-REGULATION QX1 QX2 QX21 QX22 QX23 B2 BOILER Y5 Y6 Q6 B22 WOOD BOILER B3 TOP HW B31 BOTTOM HW B39 HW CIRCULATION B4 ACCUMULATION TOP B41 ACCUMULATION BOTTOM B42 ACCUMULATION INTERMEDIATE B6 COLLECTOR B7 RETURN PIPE B10 CASCADE SETUP B70 CASCADE RETURN PIPE B73 COMMON RETURN PIPE B8 COMBUSTION PRODUCTS TEMP. B9 OUTDOOR TEMP. Q1 BOILER PUMP BX1 BX3 BX21 BX22 H2 Q2 PUMP TO1 B12 B13 Q3 HW PUMP/VALVE Q4 HW CIRCULATION PUMP Q5 COLLECTOR PUMP QX1 QX2 QX21 QX22 QX23 Q6 PUMP TO2 Q4 Y5 Y6 Q6 Q10 WOOD BOILER PUMP Q11 ACU CHARGING PUMP Q14 FEED PUMP Q15 PUMP H1 Q18 PUMP H2 Q19 PUMP H3 Q20 DIRECT HC PUMP BX1 BX3 BX21 BX22 H2 Y1/2 MIXER TO1 Y5/6 MIXER TO2 B6 B31 B12 B13 Y15 RETURN PIPE VALVE Y19/20 PRE-REGULATION VALVE QX1 QX2 QX21 QX22 QX23 K6 EL. HEATING ELEMENT Q5 Q4 Y5 Y6 Q6 HW K8 SOLAR PUMP FOR ACU K18 SOLAR PUMP FOR POOL - EXTENSION MODULE QAZ36.526 - HEAT SINK HW B3 (PART OF THE HW HEATING KIT) QAZ36.481 - HEAT SINK SOLAR B6 QAZ36.526 - HEAT SINK BOTTOM HW B31 QAD36 - POOL CONTACT B13 BX1 BX3 BX21 BX22 H2 BX21 BX22 H2 B6 B31 B12 B13 QX1 QX2 QX21 QX22 QX23 QX21 QX22 QX23 Q5 Q4 Y5 Y6 Q6 K18 Draft projection 2013 37

Connection diagram T3 Basic connection of the THRs condensing boiler designed for one direct or one direct and one mixed heating circuit. Or for connecting external appliances with a variable flow, heat demand signal 0-10V (optionally ON / OFF), with a possibility of extension by HW heating in an indirectly heated tank by a bypass valve (absolute priority) or a pump (all variants of production priority). Furthermore, the control can be supplemented by HW solar heating or HW and a swimming pool. BSB B9 QAC34 B2 230 V/50 Hz 10 A B7 ROOM UNIT QAA55.110 ROOM UNIT QAA75.611 EXP Q1 Y3 RADIATORS OR FLOOR HEATING B10 (BX1) ZV Q4 (QX2) TV Q3 B12 Q6 RADIATORS OR FLOOR HEATING LY B3 OPTIONAL Y5/6 ZV B6 (BX21) B31 (BX22) SV Q5 (QX23) K18 (QX22) B13 (BX22) K18 (QX22) 38 Draft projection 2013

Condensing boilers THRs WIRELESS ROOM UNITS: AVS71.390 - WIRELESS RECEIVER QAA58.110 - ROOM RECEIVER QAA78.610 - ROOM UNIT ROOM UNIT QAA78.610 WIRELESS RECEIVER AVS71.390 ROOM UNIT QAA58.110 QAD36 - SETUP CONTACT B10 - EXTENSION MODULE TO2 QAD36 - SETUP CONTACT B10 QAZ36.526 - HEAT SINK HW B3 (PART OF THE HW HEATING KIT) QAD36 - SETUP CONTACT TO2 B12 - EXTENSION MODULE TO2 - EXTENSION MODULE QAD36 - SETUP CONTACT B10 QAZ36.526 - HEAT SINK HW B3 (PART OF THE HW HEATING KIT) QAD36 - SETUP CONTACT TO2 B12 QAZ36.526 - HEAT SINK (PART OF THE HW HEATING KIT) QAZ36.481 - HEAT SINK SOLAR B6 QAZ36.526 - HEAT SINK BOTTOM HW B31 BX1 BX3 B10 QX1 QX2 Q2 BX1 BX3 BX21 BX22 H2 B10 B12 QX1 QX2 QX21 QX22 QX23 Q2 Q4 Y5 Y6 Q6 BX1 BX3 BX21 BX22 H2 BX21 BX22 H2 B10 B12 B6 B31 QX1 QX2 QX21 QX22 QX23 QX21 QX22 QX23 Q2 Q4 Y5 Y6 Q6 Q5 LEGEND B1 SETUP TO1 B12 SETUP TO2 B13 POOL B15 PRE-REGULATION B2 BOILER B22 WOOD BOILER B3 TOP HW B31 BOTTOM HW B39 HW CIRCULATION B4 ACCUMULATION TOP B41 ACCUMULATION BOTTOM B42 ACCUMULATION INTERMEDIATE B6 COLLECTOR B7 RETURN PIPE B10 CASCADE SETUP B70 CASCADE RETURN PIPE B73 COMMON RETURN PIPE B8 COMBUSTION PRODUCTS TEMP. B9 OUTDOOR TEMP. Q1 BOILER PUMP Q2 PUMP TO1 Q3 HW PUMP/VALVE Q4 HW CIRCULATION PUMP Q5 COLLECTOR PUMP Q6 PUMP TO2 Q10 WOOD BOILER PUMP Q11 ACU CHARGING PUMP Q14 FEED PUMP Q15 PUMP H1 Q18 PUMP H2 Q19 PUMP H3 Q20 DIRECT HC PUMP Y1/2 MIXER TO1 Y5/6 MIXER TO2 Y15 RETURN PIPE VALVE Y19/20 PRE-REGULATION VALVE K6 EL. HEATING ELEMENT HW K8 SOLAR PUMP FOR ACU K18 SOLAR PUMP FOR POOL SEE PREVIOUS TABLE + QAD36 - POOL CONTACT B13 BX1 BX3 BX21 BX22 H2 BX21 BX22 H2 B6 B31 B12 B13 B6 B31 QX1 QX2 QX21 QX22 QX23 QX21 QX22 QX23 Q5 Q4 Y5 Y6 Q6 K18 Q5 Draft projection 2013 39

Connection diagram T4 Basic connection of the THRs condensing boiler designed for one to three mixed / direct heating circuits. Or for connecting external appliances with a variable flow, the heat demand signal 0-10V (optionally ON / OFF), with a possible extension of HW heating in an indirectly heated tank by a charging pump (all variants of production priority). Furthermore, the control can be supplemented by HW solar heating. B9 QAC34 BSB B2 230 V/50 Hz 10 A B7 ROOM UNIT QAA55.110 ROOM UNIT QAA75.611 EXP Q1 B10 (BX1) B1 RADIATORS OR FLOOR HEATING Q4 (QX2) TV Q2 B3 Q3 Y1/2 ZV Q6 (BX22) B12 Q6 RADIATORS OR FLOOR HEATING Q5 (QX1) B31 (BX2) Y5/6 ZV SV B14 Q20 RADIATORS OR FLOOR HEATING Y11/12 ZV 40 Draft projection 2013

Condensing boilers THRs WIRELESS ROOM UNITS: AVS71.390 - WIRELESS RECEIVER QAA58.110 - ROOM RECEIVER QAA78.610 - ROOM UNIT ROOM UNIT QAA78.610 WIRELESS RECEIVER AVS71.390 - EXTENSION MODULE QAD36 - CONTACT TO1 QAZ36.526 - HEAT SINK HW B3 (PART OF THE HW HEATING KIT) ROOM UNIT QAA58.110 BX1 BX3 B10 QX1 QX2 BX1 BX3 BX21 BX22 H2 B10 B1 QX1 QX2 QX21 QX22 QX23 Q4 Y1 Y2 Q2 LEGEND B1 SETUP TO1 B12 SETUP TO2 B13 POOL B15 PRE- REGULATION B2 BOILER B22 WOOD BOILER B3 TOP HW B31 BOTTOM HW B39 HW CIRCULATION B4 ACCUMULATION TOP B41 ACCUMULATION BOTTOM B42 Q14 FEED ACCUMULATION PUMP Q15 PUMP H1 Q18 PUMP H2 Q19 PUMP H3 Q20 DIRECT HC PUMP Y1/2 MIXER TO1 Y5/6 MIXER TO2 Y15 RETURN PIPE VALVE Y19/20 PRE-REGULATION VALVE K6 EL. HEATING ELEMENT HW K8 SOLAR PUMP FOR ACU K18 SOLAR PUMP FOR POOL - EXTENSION MODULE TO1 - EXTENSION MODULE TO2 QAD36 - CONTACT TO1 QAD36 - CONTACT TO2 QAZ36.526 - HEAT SINK HW B3 (PART OF THE HW HEATING KIT) QAZ36.481 - HEAT SINK SOLAR B6 QAZ36.526 - BOTTOM HW B31 BX1 BX3 BX21 BX22 H2 BX21 BX22 H2 B10 B31 B1 B6 B12 QX1 QX2 QX21 QX22 QX23 QX21 QX22 QX23 Q5 Q4 Y1 Y2 Q2 Y5 Y6 Q6 - EXTENSION MODULE TO1 - EXTENSION MODULE TO2 - EXTENSION MODULE TO3 QAD36 - CONTACT TO1 QAD36 - CONTACT TO2 QAD36 - CONTACT TO3 QAZ36.526 - HEAT SINK HW B3 (PART OF THE HW HEATING KIT) QAZ36.481 - HEAT SINK SOLAR B6 QAZ36.526 - BOTTOM HW B31 BX1 BX3 B10 B31 QX1 QX2 Q5 Q4 BX21 BX22 B1 B6 H2 QX21 QX22 QX23 Y1 Y2 Q2 BX21 BX22 H2 B12 QX21 QX22 QX23 Y5 Y6 Q6 BX21 BX22 H2 B14 QX21 QX22 QX23 Y11 Y12 Q20 Draft projection 2013 41

Connection diagram T5 Basic connection of the THRs condensing boiler designed for individual rooms temperature control using the Siemens Synco Living system, with a variant of dividing appliances into two temperature gradients (radiators / floor heating) and HW production. This connection is intended for other control systems in individual rooms or generally for external appliances. The boiler control is performed by an analogue signal of the desired temperature 0-10V, or ON / OFF with equithermal pre-regulation (via LMS). CENTRAL UNIT QAX910 KNX B2 230 V/50 Hz 10 A B7 230 V/50 Hz 6 A EXP Q1 KNX SSA 955 Y3 RADIATORS Q B10 (BX1) ZV FLOOR HEATING STA 21 230 V/50 Hz X Q Y ZV Q TV B3 SV 42 Draft projection 2013

Condensing boilers THRs METEOROLOGICAL QAC 910 KNX QAA910 ROOM 0 10 V DC KNX UTP CABLE INTERNET RRV912 230 V/50 Hz 6 A RRV918 230 V/50 Hz 6 A QAD36 - SETUP CONTACT B10 QAD36 - SETUP CONTACT B10 QAD22 - HEATING CIRCUIT CONTACT KNX KNX RRV934 230 V/50 Hz 6 A RRV918 230 V/50 Hz 6 A LEGEND B1 SETUP TO1 B12 SETUP TO2 B13 POOL B15 PRE-REGULATION B22 WOOD BOILER OZW772.01 B3 TOP HW BX1 BX3 H1 B31 BOTTOM HW WEB INTERFACE 230 V/50 Hz B10 10V DC B39 HW CIRCULATION B4 TOP ACCUMULATION QX1 QX2 B41 BOTTOM ACCUMULATION B6 COLLECTOR K10 B7 RETURN PIPE B10 CASCADE SETUP B70 CASCADE RETURN PIPE B73 COMMON RETURN PIPE B8 COMBUSTION PRODUCTS TEMP. B9 OUTDOOR TEMP. Q1 BOILER PUMP Q2 PUMP TO1 Q3 HW PUMP/VALVE Q4 HW CIRCULATION PUMP Q5 COLLECTOR PUMP Q6 PUMP TO2 Q10 WOOD BOILER PUMP Q11 ACU CHARGING PUMP Q14 FEED PUMP Q15 PUMP H1 BX1 BX3 H1 Q18 PUMP H2 B10 10V DC Q19 PUMP H3 Q20 DIRECT HC PUMP QX1 QX2 K10 Y1/2 MIXER TO1 Y5/6 MIXER TO2 Y15 RETURN PIPE VALVE Y19/20 PRE-REGULATION VALVE K6 EL. HEATING ELEMENT K8 SOLAR PUMP FOR ACU K10 ALARM OUTPUT K18 SOLAR PUMP FOR POOL QAD36 - SETUP CONTACT B10 QAD22 - HEATING CIRCUIT CONTACT QAP22 - HEAT SINK HW BX1 BX3 H1 B10 10V DC QX1 QX2 K10 Draft projection 2013 43

Connection diagram T6 Basic connection of the THRs boiler cascade (max. 16 boilers) designed for one to three mixed / direct heating circuits. Or for connecting external appliances with a heat demand signal 0-10 V (optionally ON / OFF), with a possible extension of HW heating in an indirectly heated tank by a charging pump (all variants of production priority). Furthermore, the control can be supplemented by HW solar heating. In this connection the features of LMS automatic system are maximally used. It saves the cost of control system but the "all of boilers" is B9 QAC34 LPB BOILER NO. 1 BOILER NO. 2 BOILER NO. 3 230 V/50 Hz 10 A B2 B2 B2 B7 B7 B7 Q1 Q1 Q1 B10 (BX1) Q4 (QX2) TV Q3 B3 B6 (BX22) B31 (BX2) Q5 (QX1) SV 44 Draft projection 2013

Condensing boilers THRs demanding for wiring implementation. It is suitable for smaller outputs where it is not necessary to fit the power switches to outputs in a separate switchboard box unit. It is always necessary to consider whether the T7 connection is better for the given installation. BASIC REGULATION: 3 - COMMUNICATION INTERFACE LPB BX1 BX3 B10 QX1 QX2 ROOM UNIT QAA55.110 ROOM UNIT QAA75.611 B1 Q2 RADIATORS OR FLOOR HEATING 2 - COMMUNICATION INTERFACE LPB - EXTENSION MODULE TO1 QAD36 - CONTACT TO1 QAZ36.526 - HEAT SINK HW B3 (PART OF THE HW HEATING KIT) BX1 BX3 B10 QX1 QX2 Q4 BX21 BX22 H2 B1 QX21 QX22 QX23 Y1 Y2 Q2 Y1/2 ZV B12 Q6 Y5/6 RADIAT ORS OR FLOOR HEATING ZV 2 - COMMUNICATION INTERFACE LPB - EXTENSION MODULE TO1 - EXTENSION MODULE TO2 QAD36 - CONTACT TO1 QAD36 - CONTACT TO2 QAZ36.526 - HEAT SINK HW B3 (PART OF THE HW HEATING KIT) QAZ36.481 - HEAT SINK SOLAR B6 QAZ36.526 - BOTTOM HW B31 BX21 BX22 H2 BX21 BX22 H2 BX1 BX3 B1 B6 B12 B10 B31 QX21 QX22 QX23 QX21 QX22 QX23 Y1 Y2 Q2 Y5 Y6 Q6 RADIATORS OR 2 - COMMUNICATION INTERFACE LPB - EXTENSION MODULE TO1 - EXTENSION MODULE TO2 B14 FLOOR - EXTENSION MODULE TO3 HEATING Q20 QAD36 - CONTACT TO1 QAD36 - CONTACT TO2 QAD36 - CONTACT TO3 QAZ36.526 - HEAT SINK HW B3 Y11/12 (PART OF THE HW HEATING KIT) QAZ36.481 - HEAT SINK SOLAR B6 ZV QAZ36.526 - BOTTOM HW B31 BX1 BX3 BX21 BX22 H2 BX21 BX22 H2 BX21 BX22 H2 B10 B31 B1 B6 B12 B14 QX1 QX2 QX21 QX22 QX23 QX21 QX22 QX23 QX21 QX22 QX23 Q5 Q4 Y1 Y2 Q2 Y5 Y6 Q6 Y11 Y12 Q20 LEGEND B1 SETUP TO1 B12 SETUP TO2 B13 POOL B15 PRE-REGULATION B2 BOILER B22 WOOD BOILER B3 TOP HW B31 BOTTOM HW B39 HW CIRCULATION B4 ACCUMULATION TOP B41 ACCUMULATION BOTTOM B42 ACCUMULATION INTERMEDIATE B6 COLLECTOR B7 RETURN PIPE B10 CASCADE SETUP B70 CASCADE RETURN PIPE B73 COMMON RETURN PIPE B8 COMBUSTION PRODUCTS TEMP. B9 OUTDOOR TEMPERATURE Q1 BOILER PUMP Q2 PUMP TO1 Q3 HW PUMP/VALVE Q4 HW CIRCULATION PUMP Q5 COLLECTOR PUMP Q6 PUMP TO2 Q10 WOOD BOILER PUMP Q11 ACU CHARGING PUMP Q14 FEED PUMP Q15 PUMP H1 Q18 PUMP H2 Q19 PUMP H3 Q20 DIRECT HC PUMP Y1/2 MIXER TO1 Y5/6 MIXER TO2 Y15 RETURN PIPE VALVE Y19/20 PRE-REGULATION VALVE K6 EL. HEATING ELEMENT K8 SOLAR PUMP FOR ACU K18 SOLAR PUMP FOR POOL Draft projection 2013 45

Connection diagram T7 Basic connection of the THRs boiler cascade (max. 15 boilers) designed for one to three the mixed / direct heating circuits. Or for connecting external appliances with a heat demand signal 0-10 V (optionally ON / OFF), with a possible extension of HW heating in an indirectly heated container by a charging pump (all variants of production priority). Furthermore, the control can be supplemented by HW solar heating. This connection is in terms of wiring implementation better than T6 connection. In this case the cascade master is the regulator LPB LPB LPB 230 V/50 Hz 10 A B2 B2 B2 B7 B7 B7 B9 QAC34 230 V/50 Hz 10 A RVS43.345 REGULATOR Q1 Q1 Q1 AVS37.294 Y3 Y3 Y3 B10 (BX1) CONTROL PANEL B1 (BX3) RADIATORS OR FLOOR HEATING Q4 (QX1) TV Q3 (QX3) Q2 (QX5) Y1/2 (QX2/4) B3 ZV B6 (BX21) B12 Q6 RADIATORS OR FLOOR HEATING 230 V/50 Hz 6 A Q5 (QX23) B31 (BX22) 230 V/50 Hz 6 A Y5/6 AVS75.390 EXTENSION MODULE NO. 1 SV ZV AVS75.390 EXTENSION MODULE NO. 2 Q15(H1) (QX2) AVS75.390 - EXTENSION MODULE QAZ36.481 - HEAT SINK SOLAR QAZ36.526 - HEAT SINK HW AVS 75.390 BX21 BX22 B6 B31 VZT REQUIREMENT VZT H1 QX21 QX22 QX23 Q5 ZV 46 Draft projection 2013

Condensing boilers THRs RVS43.345 to which the appliances are connected. It is located in the switchboard enclosure where you can add control and power switching elements. Boilers are then connected only by a communication twin cable. BASIC REGULATION: 3 - COMMUNICATION INTERFACE LPB RVS43.345 - EQUITHERMAL REGULATOR AVS37.294 - CONTROL PANEL QAD36 - CASCADE SETUP B10 QAD36 - CONTACT TO1 RVS43.345 QAZ36 - HEAT SINK HW B3 BX1 BX3 BX1 BX3 BX1 BX3 BX1 BX2 BX3 B10 B1 QX1 QX2 QX3 QX4 QX5 Q4 Y1 Q2 Y2 LEGEND B1 SETUP TO1 B12 SETUP TO2 B13 POOL B15 PRE-REGULATION B2 BOILER B22 WOOD BOILER B3 TOP HW B31 BOTTOM HW B39 HW CIRCULATION B4 ACCUMULATION TOP B41 ACCUMULATION BOTTOM B42 ACCUMULATION INTERMEDIATE B6 COLLECTOR B7 RETURN PIPE B70 CASCADE RETURN PIPE B73 COMMON RETURN PIPE B8 COMBUSTION PRODUCTS TEMP. B9 OUTDOOR TEMP. Q1 BOILER PUMP Q2 PUMP TO1 Q3 HW PUMP/VALVE Q4 HW CIRCULATION PUMP Q5 COLLECTOR PUMP Q6 PUMP TO2 Q10 WOOD BOILER PUMP Q11 ACU CHARGING PUMP Q14 FEED PUMP Q15 PUMP H1 Q18 PUMP H2 Q19 PUMP H3 Q20 DIRECT HC PUMP Y1/2 MIXER TO1 Y5/6 MIXER TO2 Y15 RETURN PIPE VALVE Y19/20 PRE-REGULATION VALVE K6 EL. HEATING ELEMENT K8 SOLAR PUMP FOR ACU K18 SOLAR PUMP FOR POOL 3 - COMMUNICATION INTERFACE LPB RVS43.345 - EQUITHERMAL REGULATOR AVS37.294 - CONTROL PANEL AVS75.390 - EXTENSION MODULE QAD36 - CASCADE SETUP B10 QAD36 - CONTACT TO1 QAD36 - CONTACT TO2 QAZ36 - HEAT SINK HW B3 RVS43.345 AVS75.390 BX1 BX3 BX1 BX3 BX1 BX3 BX1 BX2 BX3 B10 B1 BX21 BX22 B12 QX1 QX2 QX3 QX4 QX5 Q4 Y1 Q3 Y2 Q2 QX21 QX22 QX23 Y5 Y6 Q5 Draft projection 2013 47

Connection diagram T8 The connection of the THRs boiler cascade (max. 16 boilers) designed for one to three mixed / direct heating circuits. Or for connecting external appliances with a heat demand signal 0-10 V (optionally ON / OFF), with a possible extension of HW heating in an indirectly heated container by a switching valve from one boiler (absolute production priority). This connection is suitable for the building with a low HW consumption with regard to the heat loss of the building (for example, office buildings or schools without a canteen). B9 QAC34 LPB BOILER NO. 1 BOILER NO. 2 BOILER NO. 3 230 V/50 Hz 10 A B2 B2 B2 B7 B7 B7 ROOM UNIT QAA55110 ROOM UNIT QAA75.611 Q1 Q1 Q1 Y3 B10 (BX1) TV Q4 (QX1) B1 Q2 RADIATORS OR FLOOR HEATING Y1/2 B3 ZV B6 (BX21) B12 Q6 RADIATORS OR FLOOR HEATING B31 (BX22) Q5 (QX23) SV Y5/6 ZV B12 Q6 RADIATORS OR FLOOR HEATING Y5/6 ZV 48 Draft projection 2013

Condensing boilers THRs It is always necessary to consider whether the T7 connection is better for the given installation. 3 COMMUNIC. INTERFACE LPB 2 COMMUNIC. INTERFACE LPB - EXTENSION MODULE TO1 QAD36 - CONTACT TO1 QAZ36.526 - HEAT SINK HW B3 (PART OF THE HW HEATING KIT) 2 - COMMUNICATION INTERFACE LPB - EXTENSION MODULE TO1 - EXTENSION MODULE TO2 QAD36 - CONTACT TO1 QAD36 - CONTACT TO2 QAZ36.526 - HEAT SINK HW B3 (PART OF THE HW HEATING KIT) QAZ36.481 - HEAT SINK SOLAR B6 QAZ36.526 - BOTTOM HW B31 BX1 BX3 BX3 B10 B10 QX1 QX2 QX2 BX1 BX1 BX3 BX3 BX21 BX22 H2 H2 B10 B10 B1 B1 QX1 QX2 QX2 QX21 QX22 QX23 Q4 Q4 Y1 Y1 Y2 Y2 Q2 Q2 BX1 BX1 BX3 BX3 BX21 BX22 H2 H2 B10 B10 B31 B31 B1 B1 B6 B6 BX21 BX22 H2 H2 B12 B12 QX1 QX1 QX2 QX2 QX21QX22 QX22QX23 QX23 QX21QX22 QX22QX23 QX23 Q5 Q5 Q4 Q4 Y1 Y1 Y2 Y2 Q2 Q2 Y5 Y5 Y6 Y6 Q6 Q6 LEGEND B1 SETUP TO1 B12 SETUP TO2 B13 POOL B15 PRE-REGULATION B2 BOILER B22 WOOD BOILER B3 TOP HW B31 BOTTOM HW B39 HW CIRCULATION B4 ACCUMULATION TOP B41 ACCUMULATION BOTTOM B42 ACCUMULATION INTERMEDIATE B6 COLLECTOR B7 RETURN PIPE B70 CASCADE RETURN PIPE B73 COMMON RETURN PIPE B8 COMBUSTION PRODUCTS TEMP. B9 OUTDOOR TEMP. Q1 BOILER PUMP Q2 PUMP TO1 Q3 HW PUMP/VALVE Q4 HW CIRCULATION PUMP Q5 COLLECTOR PUMP Q6 PUMP TO2 Q10 WOOD BOILER PUMP Q11 ACU CHARGING PUMP Q14 FEED PUMP Q15 PUMP H1 Q18 PUMP H2 Q19 PUMP H3 Q20 DIRECT HC PUMP Y1/2 MIXER TO1 Y5/6 MIXER TO2 Y15 RETURN PIPE VALVE Y19/20 PRE-REGULATION VALVE K6 EL. HEATING ELEMENT K8 SOLAR PUMP FOR ACU K18 SOLAR PUMP FOR POOL 2 - COMMUNICATION INTERFACE LPB - EXTENSION MODULE TO1 - EXTENSION MODULE TO2 - EXTENSION MODULE TO3 QAD36 - CONTACT TO1 QAD36 - CONTACT TO2 QAD36 - CONTACT TO3 QAZ36.526 - HEAT SINK HW B3 (PART OF THE HW HEATING KIT) QAZ36.481 - HEAT SINK SOLAR B6 QAZ36.526 - BOTTOM HW B31 BX1 BX1 BX3 BX3 BX21 BX21BX22 BX22 H2 H2 B10 B10 B31 B31 B1 B1 B6 B6 BX21 BX21BX22 BX22 H2 H2 B12 B12 QX1 QX1 QX2 QX2 QX21 QX21QX22 QX22QX23 QX23 QX21 QX21QX22 QX22QX23 QX23 Q5 Q5 Q4 Q4 Y1 Y1 Y2 Y2 Q2 Q2 Y5 Y5 Y6 Y6 Q6 Q6 BX21 BX21BX22 BX22 H2 H2 B14 B14 QX21 QX21QX22 QX22QX23 QX23 Y11 Y11 Y12 Y12 Q20 Q20 Draft projection 2013 49

Connection diagram T9 The connection of the THRs condensing boiler in a trivalent system with one mixed heating circuit, solid fuel boiler, HW solar heating and heating solar support. The connection demonstrates maximum options of the LMS boiler automatic system control unit by using three extension modules without the need for additional RVS regulation. Used hydraulic connection allows both an alternative and bivalent operation of heat sources. It saves the cost of control system but the "all of boilers" is demanding for wiring implementation. It is always necessary to consider whether the T9 connection is better for the given installation. B9 QAC34 BSB 230 V/50 Hz 10 A B2 B7 ROOM UNIT QAA75.611 ROOM UNIT QAA55.110 RADIATORS EXP Q1 B1 Q2 B10 (BX1) Y1/2 Y15 (QX1) B73 (BX2) ZV Q3 B22 (BX22) B4 (BX21) STORAGE TANK Q10 (QX2) 3 1 B41 (BX22) TV SV SOLID FUEL BOILER ZV 2 B3 B31 (BX21) BIVALENT HW TANK SV 50 Draft projection 2013

Condensing boilers THRs B6 (BX22) WEB SERVER OZW672.01 230 V/50 Hz 10 A INTERNET - RJ/45 OPTIONALL Y BX1 BX3 B10 B73 QX1 QX2 Y15 Q10 BX21 BX22 H2 B1 B22 QX21 QX22 QX23 Y1 Y2 Q2 BX21 BX22 H2 B4 B41 QX21 QX22 QX23 Q5 K8 BX21 BX22 H2 B31 B6 QX21 QX22 QX23 HEATING CIRCUIT 1 MULTIFUNCTI ONAL MULTIFUNCTI ONAL LEGEND B1 SETUP TO1 B12 SETUP TO2 B13 POOL B15 PRE-REGULATION B2 BOILER B22 WOOD BOILER B3 TOP HW B31 BOTTOM HW B39 HW CIRCULATION B4 ACCUMULATION TOP B41 ACCUMULATION BOTTOM B42 ACCUMULATION INTERMEDIATE B6 COLLECTOR B7 RETURN PIPE B10 CASCADE SETUP B70 CASCADE RETURN PIPE B73 COMMON RETURN PIPE B8 COMBUSTION PRODUCTS TEMP. B9 OUTDOOR TEMP. Q1 BOILER PUMP Q2 PUMP TO1 Q3 HW PUMP/VALVE Q4 HW CIRCULATION PUMP Q5 COLLECTOR PUMP Q6 PUMP TO2 Q10 WOOD BOILER PUMP Q11 ACU CHARGING PUMP Q14 FEED PUMP Q15 PUMP H1 Q18 PUMP H2 Q19 PUMP H3 Q20 DIRECT HC PUMP Y1/2 MIXER TO1 Y5/6 MIXER TO2 Y15 RETURN PIPE VALVE Y19/20 PRE-REGULATION VALVE K6 EL. HEATING ELEMENT K8 SOLAR PUMP FOR ACU K18 SOLAR PUMP FOR POOL Q5 (QX21) K8 (QX22) Draft projection 2013 51

Connection diagram T10 The connection of the THRs condensing boiler in a trivalent system with one to two heating circuits, solid fuel boiler, HW solar heating and heating solar support. Any pool heating can be performed by solar heating, the main source or by the exhaust of the excess heat of a solid fuel boiler. The connection exceeds maximal options of the LMS boiler automatic system control unit by using three extension module, therefore the additional RVS regulation is used. Used hydraulic connection allows both alternative and bivalent operation of heat sources. B9 QAC34 230 V/50 Hz 10 A 230 V/50 Hz 10 A 230 V/50 Hz 10 A REGULATOR LPB RVS63.283 AVS75.390 AVS75.390 ADDRESS LPB 1 ADDRESS SEG 0 EXTENSION MODULE NO. 1 EXTENSION MODULE NO. 2 CONTROL PANEL AVS37.294 230 V/50 Hz 10 A B2 B7 ROOM UNIT QAA55.110 ROOM UNIT QAA55.110 RADIATORS FLOOR HEATING EXP Q1 B1 Q2 B12 Q6 B10 (BX1) Y1/2 Y5/6 Y15 (QX1) B73 (BX1) ZV ZV Q3 B22 (BX21) B4 (BX2) STORAGE TANK ZV Q10 (QX4) 3 1 B41 (BX3) TV SV SOLID FUEL BOILER ZV 2 B3 B31 (BX21) BIVALENT HW TANK SV 52 Draft projection 2013

Condensing boilers THRs Q5 (QX23) K18 (QX3) B6 (BX21) WEB SERVER OZW672.01 K8 (QX2) 230 V/50 Hz 10 A INTERNET - RJ/45 OPTIONALL Y Q15 (QX22) RVS63.283 BX1 BX2 BX3 BX4 B73 B4 B41 B13 QX1 QX2 QX3 QX4 Y15 K8 K18 Q10 AVS75.390 BX21 BX22 B6 B31 QX21 QX22 QX23 Q15 Q5 AVS75.390 BX21 BX22 B22 QX21 QX22 QX23 LEGEND B1 SETUP TO1 B12 SETUP TO2 B13 POOL B15 PRE-REGULATION B2 BOILER B22 WOOD BOILER B3 TOP HW B31 BOTTOM HW B39 HW CIRCULATION B4 ACCUMULATION TOP B41 ACCUMULATION BOTTOM B42 ACCUMULATION INTERMEDIATE B6 COLLECTOR B7 RETURN PIPE B10 CASCADE SETUP B70 CASCADE RETURN PIPE B73 COMMON RETURN PIPE B8 COMBUSTION PRODUCTS TEMP. B9 OUTDOOR TEMP. Q1 BOILER PUMP Q2 PUMP TO1 Q3 HW PUMP/VALVE Q4 HW CIRCULATION PUMP Q5 COLLECTOR PUMP Q6 PUMP TO2 Q10 WOOD BOILER PUMP Q11 ACU CHARGING PUMP Q14 FEED PUMP Q15 PUMP H1 Q18 PUMP H2 Q19 PUMP H3 Q20 DIRECT HC PUMP Y1/2 MIXER TO1 Y5/6 MIXER TO2 Y15 RETURN PIPE VALVE Y19/20 PRE-REGULATION VALVE K6 EL. HEATING ELEMENT K8 SOLAR PUMP FOR ACU K18 SOLAR PUMP FOR POOL ZV Q15 K18 (QX22) (QX3) FILTRATION B13 (BX4) Draft projection 2013 53

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