WATER HEATERS. Tradition from 1956

Transcription

1 WATER HEATERS Tradition from 1956

2 OKHE SMART Smart water heater with electronic thermostat and the option of connection to HDO (reduced electricity rate)! NEWS ON PAGE 12 SAVES BY FURTHER 10% MORE

3 CONTENTS 5 REASONS FOR SELECTING DZD 4 CHOOSE A HEATER IN FOUR SIMPLE STEPS 6 1. ELECTRIC WATER HEATERS 8 2. COMBINED WATER HEATERS INDIRECT WATER HEATERS WATER HEATERS FOR SOLAR SYSTEMS WATER HEATERS WITH HEAT PUMP ACCESSORIES 27 3

4 FIVE REASONS FOR SELECTING DZ DRAŽICE

5 TECHNOLOGY Additionally to top processing, quality materials used during the production and demanding inspection during the process, the unique system of heating units represents one of our main advantages as regards water heaters CERAMIC HEATING UNIT Electric unit is not submersible but ceramic, dry, inserted in the steel well. Since the water heater vessel and the well are made from one material type (steel), galvanic cell and electro-chemical reaction do not occur. Other producers usually use submersible units made from other types of material (copper, stainless steel), therefore the electro-chemical reaction occurs. The system of ceramic units is especially resistant to hard and aggressive water and significantly extends the vessel service life under all conditions. ENAMEL STEEL VESSEL Steel heater vessel from especially strong sheet metal resistant to pressure surges. It is equipped with quality nickel-free enamel which in combination with the magnesium anode guarantees long service life of water heaters DZ Dražice. Cleaning openings enable access to the vessel internal part for removing sediments and limescale and saves costs for the operation. MAGNESIUM ANODE Magnesium anode as additional protection against corrosion also extends the service life of the vessel and high utility value received with the purchase of DZ Dražice water heaters. POLYURETHANE INSULATION Quality polyurethane insulation with minimum 42 mm thickness provides low heat loss and operating costs.

6 CHOOSE A HEATER IN FOUR SIMPLE STEPS 1. RECOMMENDED MINIMUM VOLUME OF THE STORAGE WATER HEATER IN LITRES Heating method Electricity Gas wood, Consumption expectation Low Medium High coal (all year, unlimited) Day/night current daily night daily night daily night Number of persons > Project Project Project Project Project Project Project 2. HOW MANY LITRES OF WATER FOR YOU USE A DAY? This is a rough manual for help with calculation. Consider that the lower specified values apply for hot water consumption with temperature 40 C. Norma three to four minute shower: 40 litres Bath of standard size: 140 litres Hand washing: 15 litres Another calculation method is to consider total daily consumption of water in the household. It depends on the size of household and common consumption complies with the data below: Family comprising of two adults and one child: litres of hot water Family comprising of two adults and two children: litres of hot water 3. WHAT TYPE OF WATER IS IN YOUR AREA? Most DZ Dražice water heaters are made from enamel steel. Water quality is not an issue because most of our products use dry ceramic unit in the well, which provides minimum growth of calcic sediments during heating. This unique solution has 2.5 higher delivery surface in comparison with the submersible unit. 4. WHAT IS YOUR TYPE OF HEATING SYSTEM? Our water heaters are made in such way to optimally function with all types of heating systems. However, if you require selecting water heater for e.g. solar collectors or a heating pump with low energy consumption, you need a correctly selected model from our product range. The pages below provide water heaters exactly for your requirements. 6

7 200 service locations DZ Dražice (The Works Cooperative of Dražice) dispose of a network of over 200 service locations across the entire Czech Republic. For customer this means certainty of trouble-free operation and availability of spare parts.

8 1. ELECTRIC WATER HEATERS Flow pressure free 9 Storage pressure free 9 Storage pressure 10 Low volume 10 Suspension vertical 11 Suspension horizontal 12 Stationary 13 The safety valve is a part of all heaters litres. The suspension (belt for suspension vertical heaters) - 1pc is a part of heater range OKCE , 5, OKHE The suspension (belt for suspension vertical heaters) - 2pcs are a part of heater range OKCE The bracket (bent holder for horizontal heaters) - 2pcs are a part of heater range OKCEV Drain valve is a part of heater range OKCE/S , 125, OKCE NTR The suspensions for assembling the horizontal ontal heaters on the ground can be ordered within accessories.

9 1. ELECTRIC WATER HEATERS Flow pressure free PTO Electric flow heater ranges PTO 733 are shaped and designed in dimensions for the consumption location washbasin, sink, etc.. In the locations where hot water is required immediately. It is necessary to use pressure su free battery. Only for solid connection nectio to electricity network. Type Breaker [A] without water (h-w-dh) [mm] Power input [kw] PTO ,3 175x204x80 3,5 PTO ,3 175x204x80 5 Storage pressure free BTO These e electrical heaters are suitable for one consumption location. It is necessary es to use pressure free battery. location under the washbasin - IN location above the washbasin - UP Type Capacity [l] Time of heating without water (h-w-dh) [mm] Power input [kw] to 60 C [min] BTO 5 UP/IN 5 9 3,5 390x256x213 2 BTO 10 UP/IN x350x

10 Storage pressure Low volume TO 5, 10, 15 Electric water heaters which can be used for more consumption locations with low distance from each other. location under the washbasin - IN location above the washbasin - UP Type Capacity [l] Time of heating without water (h-w-dh) [mm] Power input [kw] to 60 C [min] TO 5 UP/IN x260x265 2 TO 10 UP/IN x350x265 2 TO 15 UP/IN x350x310 2 CLOSE Quality copper heaters suitable for pressure and pressure-free installation. It can be used for more consumption locations with low distance from each other. Considering the used material, it is necessary to consult the installation suitability with water supplier (not suitable for water with ph under 5). location under the washbasin - IN location above the washbasin - UP Type Capacity [l] Time of heating without water (h-w-dh) [mm] Power input [kw] to 60 C [min] CLOSE 10 UP/IN ,5 452x300x285 2,2 CLOSE 15 UP/IN ,5 452x300x285 2,2 10

11 TO 20 Water heater with the lowest volume sufficiently effective even for a shower. It can be used for more consumption locations. Temperature can be set within range 7 77 C. It contains the anti-freeze safety device. Very low heat losses. Very fast water heating. Type Capacity [l] Time of heating without water (h-w-dh) [mm] Power input [kw] to 60 C [min] TO x500x246 2,2 Suspension vertical OKCE Electric heaters with dry ceramic unit suitable for installation in zone 1 (IP 45), i.e. highly secure product with the option of use in close vicinity from a bath or shower. Type Capacity [l] Time of heating without water (h-ø) [mm] Power input [kw] to 60 C [hour] OKCE , x524 2 OKCE , x524 2 OKCE x524 2 OKCE , x524 2 OKCE x524 2 OKCE x584 2,2 OKCE , x584 2,2 11

12 OKHE Electric heaters with dry ceramic unit designed with stronger insulation which is included in energy class B. Suitable for installation in zone 1 (IP 45), i.e. highly secure product with the option of use in close vicinity from a bath or shower. OKHE SMART Smart water heater with electronic thermostat and the option of connection to HDO (reduced electricity rate). Function of SMART HDO adjusts the heater operation according to your requirements reaching higher savings. Type Capacity [l] Time of heating without water (h-w-dh) [mm] Power input [kw] to 60 C [hour] OKHE 80 / SMART 80 1, x520x550 2 OKHE 100 / SMART x520x550 2 OKHE 125 / SMART 125 3, x520x550 2 OKHE 160 / SMART x520x550 2 Suspension horizontal OKCEV The heaters contain dry ceramic unit. They are suitable for installation with low ceiling height. The offer includes a design with electrical installation on the right. Type Capacity [l] Time of heating without water n (l-ø) [mm] Power input [kw] to 60 C [hour] OKCEV x524 2 OKCEV , x OKCEV x524 2 OKCEV x584 2,2 OKCEV , x584 2,2 12

13 Stationary OKCE S/2,2 kw (with 1 electric unit) The heaters contain built-in heating unit in the flange 2,2 kw, which is in models l placed from the heater upper part. In models l the heating unit is placed at the side of the device. Type Capacity [l] Time of heating without water (h-ø) [mm] to 60 C [hour] OKCE 100 S/2,2 kw x524 OKCE 125 S/2,2 kw 125 3, x524 OKCE 160 S/2,2 kw 160 4, x584 OKCE 200 S/2,2 kw 220 5, x584 OKCE 250 S/2,2 kw x584 OKCE S/3 6 kw (with 3 electric units) The heaters contain built-in heating units in the flange 3-6 kw. The heating period reduces almost three times. The heating units are placed at the bottom side of the device. Type Capacity [l] Time of heating without water (h-ø) [mm] to 60 C [hour] OKCE 160 S/3 6 kw 160 3,2 1, x584 OKCE 200 S/3 6 kw x584 OKCE 250 S/3 6 kw , x584 OKCE S/1 MPa (without electric unit storage) It is possible to built-in the heaters electric heating units which can be purchased as accessories. Without them, the heaters work as water storages. In types OKCE 750 S/1 MPa and OKCE 1000 S/1 MPa the heating insulation is delivered separately, independemtly packed and attached during the installation. Type Capacity [l] Time of heating without water (h-ø) [mm] to 60 C [hour] OKCE 300 S/1 MPa x670 OKCE 400 S/1 MPa 400 Based on selected x701 OKCE 500 S/1 MPa 500 power input of a heating unit range x701 OKCE 750 S/1 MPa 750 R, SE x910 OKCE 1000 S/1 MPa x

14 2. COMBINED WATER HEATERS Suspension vertical 15 Suspension horizontal 16 Stationary 17 The safety valve is a part of all heaters litres. The suspension (belt for suspension vertical heaters) ers - 1pc is a part of heater range OKC The suspension (belt for suspension vertical heaters) - 2pcs are a part of heater range OKC The bracket (bent holder for horizontal heaters) - 2pcs are a part of heater range OKCV The suspensions for assembling sem the horizontal heaters on the ground can be ordered within accessories.

15 2. COMBINED WATER HEATERS Suspension vertical OKC Combined heaters with tube exchanger and dry ceramic unit suitable for installation with high temperature source (e.g. boiler for solid fuels, classic gas boiler). With the connection option to electricity. We recommend operating only one energy source. Type Capacity [l] Time of heating to 60 C with Rated thermal output at heating water temperature of 80 C Time of heating to 60 C with Rated thermal output at heating water temperature of 80 C Time of heating to 60 C with without water (h-ø) [mm] Power input [kw] electricity [hour] and flow 720 l/h [kw] exchanger [min] and flow 310 l/h [kw] exchanger [min] OKC , x524 2 OKC x524 2 OKC , x524 2 OKC x524 2 OKC x584 2,2 OKC , x584 2,2 OKC/1 m 2 Heaters with tube exchanger and dry ceramic unit suitable for installation with low temperature source (e.g. condenser gas boiler). With the connection option to electricity. We recommend operating only one energy source. Type Capacity [l] Time of heating Time of heating without (h-ø) [mm] Power input [kw] to 60 C with electricity [hour] to 60 C with exchanger [min] water OKC 100/1 m x524 2 OKC 125/1 m , x524 2 OKC 160/1 m x524 2 OKC 180/1 m x584 2,2 OKC 200/1 m , x584 2,2 15

16 Suspension horizontal OKCV Combined horizontal heaters with double coating exchanger and dry ceramic unit suitable for installation with high temperature ture source (e.g. boiler for solid fuels, classic gas boiler). With the connection nect option to electricity. We recommend operating only one energy source. Type Capacity [l] Time of heating to 60 C with Rated thermal output at heating water temperature of 80 C Time of heating to 60 C with Rated thermal output at heating water temperature of 80 C Time of heating to 60 C with without water (l-ø) [mm] Power input [kw] electricity [hour] and flow 720 l/h [kw] exchanger [min] and flow 310 l/h [kw] exchanger [min] OKCV ,8 16, , x524 2 OKCV , , x524 2 OKCV x584 2,2 OKCV , x584 2,2 16

17 Stationary OKCE NTR/2,2 kw OKCE NTRR/2,2 kw The heaters with tube exchanger and dry ceramic unit placed in models l from the upper side of the heater and in models l from the bottom side of the device. The heaters are suitable for installation with various energy sources (e.g. condenser gas boiler, solid fuel boiler). The models usually include the exchanger surface, they can transfer higher boiler output and the heating period becomes shorter. It can be connected to electricity network. We recommend operating only one energy source. Type Capacity [l] Time of heating to 60 C with electricity [hour] Time of heating to 60 C with exchanger [min] without water (h-ø) [mm] OKCE 100 NTR/2,2 kw x524 OKCE 125 NTR/2,2 kw 115 3, x524 OKCE 160 NTR/2,2 kw 155 4, x584 OKCE 200 NTR/2,2 kw 210 5, x584 OKCE 250 NTR/2,2 kw 259 6, x584 OKCE 300 NTR/2,2 kw 301 8, x670 OKCE 200 NTRR/2,2 kw 200 5, x584 OKCE 250 NTRR/2,2 kw 241 6, x584 OKCE 300 NTRR/2,2 kw 292 8, x670 OKCE NTR/3 6 kw OKCE NTRR/3 6 kw The heaters with large surface tube exchanger contain built-in heating units in the flange 3 6 kw. Type Capacity [l] Time of heating Time of heating without water (h-ø) [mm] to 60 C with electricity [hour] to 60 C with exchanger [min] OKCE 300 NTR/3 6 kw x670 OKCE 300 NTRR/3 6 kw x670 17

18 3. INDIRECT WATER HEATERS Suspension vertical 19 Stationary 19 The safety valve is a part of all heaters ers litres and heaters OKC 300 NTRR/SOL. Suspension (belt on suspension n heater) er - 2 pc is part of the heater range OKC NTR/Z pc is a part of the heater range OKC NTR/Z Drain valve is a part of heater er ranges OKC NTR , OKH NTR , OKC NTR/HV , OKH NTR/HV

19 3. INDIRECT WATER HEATERS Suspension vertical OKC NTR/Z Basic design of indirect heaters for wall suspension. Type Capacity [l] Rated thermal output at heating water temperature of Time of heating without water (h-ø) [mm] 80 C and flow 720 l/h [kw] to 60 C [min] OKC 80 NTR/Z x524 OKC 100 NTR/Z x524 OKC 125 NTR/Z x524 OKC 160 NTR/Z x524 OKC 200 NTR/Z x584 Stationary OKC NTR/BP OKC NTRR/BP Indirect water heaters with large surface exchanger with the side flange which do not contain electrical heating unit. Type Capacity [l] Time of heating from 10 C to 60 C with without water (h-ø) [mm] exchanger [min] OKC 160 NTR/BP x584 OKC 200 NTR/BP x584 OKC 250 NTR/BP x584 OKC 300 NTR/BP x670 OKC 200 NTRR/BP x584 OKC 250 NTRR/BP x584 OKC 300 NTRR/BP x670 19

20 OKC NTR/SOL OKC NTRR/SOL Special indirect heaters with the connection option to solar system for water heating. Type Capacity [l] Time of heating TUV with Time of heating TUV with exchanger at heat drop exchanger at heat drop without water (h-ø) [mm] 80/60 C [min] 60/50 C [min] (lower/upper) (lower/upper) OKC 400 NTR/SOL x650 OKC 500 NTR/SOL x700 OKC 200 NTRR/SOL /16 38/ x584 OKC 250 NTRR/SOL /16 44/ x584 OKC 300 NTRR/SOL /16 35/ x597 OKC 400 NTRR/SOL /22 41/ x650 OKC 500 NTRR/SOL /17 47/ x700 OKC NTR OKC NTRR Round heaters with one or two exchangers for positioning on the floor. Type Capacity [l] Rated thermal output at heating water temperature of Time of heating from 10 C without water (h-ø) [mm] 80 C and flow 720 l/h [kw] to 60 C with exchanger[min] OKC 100 NTR x524 OKC 125 NTR x524 OKC 160 NTR x524 OKC 200 NTR x584 OKC 250 NTR x584 OKC 200 NTRR x 24 28/ x584 OKC 250 NTRR x 24 36/ x584 OKH NTR Angular heaters with one exchanger for positioning on the floor. Type Capacity [l] Rated thermal output at heating water temperature of Time of heating from 10 C without water (h-w-dh) [mm] 80 C and flow 720 l/h [kw] to 60 C with exchanger[min] OKH 100 NTR x520x520 OKH 125 NTR x520x520 OKH 160 NTR x520x520 20

21 OKC NTR/HV Round heaters with one exchanger and upper outlets. New with plastic cover design. Type Capacity [l] Rated thermal output at heating water Time of heating from 10 C without water (h-ø) [mm] temperature of 80 C and flow 720 l/h [kw] to 60 C with exchanger [min] OKC 100 NTR/HV x524 OKC 125 NTR/HV x524 OKC 160 NTR/HV x584 OKH NTR/HV Angular heaters with one exchanger and upper outlets. New with plastic cover design. Type Capacity [l] Rated thermal output at heating water Time of heating from 10 C without water (h-w-dh) [mm] temperature of 80 C and flow 720 l/h [kw] to 60 C with exchanger [min] OKH 100 NTR/HV x520x520 OKH 125 NTR/HV x520x520 OKC NTR/HP Special indirect heaters with the connection option to the heat pump. Type Capacity [l] without water (h-ø) [mm] OKC 300 NTR/HP x670 OKC 400 NTR/HP x700 OKC 500 NTR/HP x700 21

22 OKC NTR/1 MPa Large volume heaters with one exchanger and operating pressure 1 MPa. Type Capacity [l] Time of heating TUV with exchanger at heat drop without (h-ø) [mm] 80/60 C [min] water OKC 300 NTR/1 MPa x670 OKC 400 NTR/1 MPa x700 OKC 500 NTR/1 MPa x700 OKC 750 NTR/1 MPa x910 OKC 1000 NTR/1 MPa x1010 OKC NTRR/1 MPa Large volume heaters with two exchangers and operating pressure 1 MPa. Type Capacity [l] Time of heating TUV with exchanger at heat drop without (h-ø) [mm] 80/60 C (lower/upper) [min] water OKC 300 NTRR/1 MPa / x670 OKC 400 NTRR/1 MPa / x700 OKC 500 NTRR/1 MPa / x700 OKC 750 NTRR/1 MPa / x910 OKC 1000 NTRR/1 MPa / x

23 4. WATER HEATERS FOR SOLAR SYSTEMS

24 4. WATER HEATERS FOR SOLAR SYSTEMS OKFE AC/DC (HDO) The heaters utilise alternate (AC) current from electric network, e.g. from 230 V socket, alternate (AC CRC) economic current and direct (DC) current from photovoltaic panels that secure ecologically pure production of hot water and save significant financial sources of the user. Type Capacity [l] Energy source without water (h-ø) [mm] Power input DC [kw] Power input AC [kw] OKFE 100 AC/DC 1,5 kw x524 1,5 2 OKFE 125 AC/DC 2 kw 125 AC/DC electric current x OKFE 160 AC/DC 2 kw x OKF/1m 2 AC/DC Hybrid water heaters OKF/1m 2 AC/DC use the same current as heaters OKFE AC/DC. Additionally, they can be connected to external heat sources, e.g. oil, gas or wood boiler. Type Capacity [l] Energy source without water (h-ø) [mm] Power input DC [kw] Power input AC [kw] OKF 100/1 m 2 AC/DC 1,5 kw 95 AC/DC electric x524 1,5 2 OKF 125/1 m 2 AC/DC 1,5 kw 120 current+ external x524 1,5 2 OKF 160/1 m 2 AC/DC 1,5 kw 147 heat source x524 1,5 2 OKC NTR/SOLAR SET OKC NTRR/SOLAR SET Solar heater including the pump group and the control units with installed sensors, suitable for solar collector connection. Type Capacity [l] without water (h-ø) [mm] OKC 300 NTR/SOLAR SET x670 OKC 300 NTRR/SOLAR SET x670 24

25 5. WATER HEATERS WITH HEAT PUMP

26 5. WATER HEATERS WITH HEAT PUMP TC E Device designed for preparing hot water in households and small operating plants with daily hot water consumption (40 ) does not exceed 150 l to 250 l. Uses heat contained in the air in the building for water heating. Type Capacity [l] without water (h-w-dh) [mm] Heating output [kw] Power input [kw] TC 80 E x668x500 1,4 0,5 TC 100 E x668x500 1,4 0,5 TC 120 E x668x500 1,3 0,5 26

27 6. ACCESSORIES Screw mounted electrical heating units of range TJ G 6/4" 28 Heating flange units with ceramic elements 28 Built-in heating units of flange range R, SE 29 Reduction flanges 29 Thermoregulation box 30 Tables with accessories 31

28 6. ACCESSORIES Screw-mounted electrical heating units TJ G 6/4" They can be used in all indirect heaters (except for OKC NTR(R), OKC NTR/HV) as a spare energy source. Type Output [kw] Built-in length [mm] Built-in length (extended cooling part) [mm] TJ 6/4" , TJ 6/4" - 2,5 2,5 1, TJ 6/4" - 3,3 3, TJ 6/4" - 3,75 3,75 2, TJ 6/4" - 4,5 4,5 2, TJ 6/4" , TJ 6/4" - 7,5 7,5 2, TJ 6/4" , Heating flange units with ceramic elements TPK They can be used in indirect heaters OKC NTR(R)/BP and with reduction flange OKC 750 and 1000 NTR(R)/1 MPa. Type Output [kw] Built-in length [mm] TPK 168 8/2,2 kw 2, TPK /2,2 kw 2, TPK /3 6 kw TPK /5 9 kw TPK /8 12 kw

29 Built-in electric flange heating unit R, SE Only for OKC NTR(R)/1MPa, OKCE S/1MPa. Type Output [kw] Built-in length [mm] REU 18 2,5 2, RDU 18 2,5 2,5 3,3 450 RDU ,4 450 RDU 18 3,8 3,8 3,5 450 RDU ,5 450 RDU ,5 450 RDW 18 7,5 7,5 3,7 450 RDW RSW RSW ,2 630 SE SE 378 9, ,5 740 Reduction flanges Electric heating units REU, RDU and RSW with the reduction flange 210/150 can be assembled in heater OKCE 300 S/1 MPa. Electric heating units REU, RDU and RDW with the reduction flange 225/150 can be assembled in heaters with volume 750 and 1000 litres. Electric heating units TPK /2,2 kw and TPK /3-6 kw with the reduction flange 225/210 can be assembled in heaters with volume 750 and 1000 litres. 29

30 Thermoregulation box KR Indirect water heaters are equipped with wells for sensor location from the external source (boiler for solid fuels, solar control unit, heat pump, etc.). Installations where control unit cannot be controlled from external source enable the use of thermoregulation box KR which controls external source or switching elements (e.g. three way valve). The switching temperature within the range 5 75 C. For the installation of the regulator sensors the heater vessel contains wells with internal thread M12 x 1,5. Type Voltage [V] KR-24 V 24 KR-230 V

31 Tables with accessories THE ASSEMBLY OPTION OF BUILT-IN ELECTRIC UNITS WITH FLANGES RANGES R, SE Type REU 18-2,5 RDU 18-2,5 RDU 18-3 RDU 18-3,8 RDU 18-5 RDU 18-6 RDW 18-7,5 RDW RSW RSW SE 377 SE 378 OKC 300 NTR/1 MPa OKC 300 NTRR/1 MPa OKCE 300 S/1 MPa OKC 300 NTR/HP OKCE 400 S/1 MPa - - OKC 400 NTR/1 MPa OKC 400 NTRR/1 MPa OKC 400 NTR/HP OKCE 500 S/1 MPa - - OKC 500 NTR/1 MPa OKC 500 NTRR/1 MPa OKC 500 NTR/HP OKCE 750 S/1 MPa OKC 750 NTR/1 MPa - OKC 750 NTRR/1 MPa - OKCE 1000 S/1 MPa OKC 1000 NTR/1 MPa OKC 1000 NTRR/1 MPa Can be assembled Can be mounted only with a reduction flange 225/150 Can be mounted only with a reduction flange 210/150 - Cannot be assembled 31

32 ASSEMBLY OPTION OF INDIVIDUAL TPK UNITS Tank diameter Type TPK 168 8/2,2 kw TPK /2,2 kw TPK /3 6 kw TPK /5 9 kw TPK /8-12 kw ø 500 mm OKCE 160 S/3 6 kw OKCE 200 S/3 6 kw OKCE 250 S/3 6 kw OKCE 200 S/2,2 kw OKC 200 NTR/BP OKC 200 NTRR/BP OKCE 200 NTR/2,2 kw OKCE 200 NTRR/2,2 kw OKCE 250 S/2,2 kw OKC 250 NTR/BP OKC 250 NTRR/BP OKCE 250 NTR/2,2 kw OKCE 250 NTRR/2,2 kw ø 550 mm OKCE 300 S/1 MPa - OKC 300 NTR/BP OKC 300 NTRR/BP OKCE 300 NTR/2,2 kw OKCE 300 NTRR/2,2 kw OKCE 300 NTR/3 6 kw OKCE 300 NTRR/3 6 kw ø 750 a 850 mm OKCE 750 S/1MPa - OKC 750 NTR/1 MPa - OKC 750 NTRR/1 MPa - OKCE 1000 S/1MPa - OKC 1000 NTR/1 MPa - OKC 1000 NTRR/1 MPa - Can be assembled Can be mounted only with a reduction flange 225/210 - Cannot be assembled 32

33 ASSEMBLY OPTION OF INDIVIDUAL TJ 6/4" UNITS Tank diameter Type TJ 6/4" 2 TJ 6/4" 2,5 TJ 6/4" 3.3 TJ 6/4" 3,75 TJ 6/4" 4,5 TJ 6/4" 6 TJ 6/4" 7,5 TJ 6/4" 9 ø 500 mm OKC 160 NTR/BP - - OKC 200 NTR/BP - - OKC 200 NTRR/BP - - OKCE 200 NTR/2,2 kw - - OKCE 200 NTRR/2,2 kw - - OKC 200 NTRR/SOL - - OKC 250 NTR/BP - - OKC 250 NTRR/BP - - OKCE 250 NTR/2,2 kw - - OKCE 250 NTRR/2,2 kw - - OKC 250 NTRR/SOL - - OKC 300 NTRR/SOL - - ø 550 mm OKC 300 NTR/BP OKC 300 NTRR/BP OKCE 300 NTR/2,2 kw OKCE 300 NTRR/2,2 kw OKCE 300 NTR/3 6 kw OKCE 300 NTRR/3 6 kw OKC 300 NTR/SOLAR SET OKC 300 NTRR/SOLAR SET OKC 300 NTR/1 MPa OKC 300 NTRR/1 MPa OKC 300 NTR/HP ø 600 mm OKC 400 NTR/1 MPa OKC 400 NTRR/1 MPa OKC 400 NTR/HP OKC 500 NTR/1 MPa OKC 500 NTRR/1 MPa OKC 500 NTR/HP ø 750 and 850 mm OKC 750 NTR/1 MPa OKC 750 NTRR/1 MPa OKC 1000 NTR/1 MPa OKC 1000 NTRR/1 MPa Can be assembled - Cannot be assembled 33

34 COMPANY HISTORY The origin of the future cooperative society dates to 1900, when widow Marie Kyselová invested a mill house in the society property. It formed a limited liability company Corn storage, artistic cylinder mill and bakery" in Dražice nad Jizerou. Between 1910 and 1917 the new management with Václav Čančík as the leader upon the recommendation from a professor at Prague technology institute Ing. Karel Novák started focusing on a very perspective production and distribution of electricity. In 1910 the hydro-electric power plant was constructed with two turbines with output 300 HP. In 1917, 69 villages with 8111 consumers were connected to the power plant in Dražice. The company reached its peak in the second half of the twenties. It employed 220 employees and owned 8 water power plants on Jizera River, steam power plant, 2 mill houses and distribution netowork with connected 383 villages with users. The turnover in 1930 was considerable three quarters of Milliard Czechoslovakian Koruna. In 1948, after enforced selling of the distribution network and subsequent nationalization of a significant society part, the company changed its focus on the products and services for people focusing on household and sporting utilities, and 8 years the production program included custom made water heaters managed by former trader Mr Křovák. In the end of the eighties Družstevní kombinát Dražice produced around of combined heaters annually. After new political situation in 1989, the society is divided to independent business companies. One of the company is a private Družstevní závody Dražice - strojírna, s.r.o.,which took over the water heater production. Between 1992 and 2003, sharp developemnt occured. The product range was extended, technology modernozed, and production contuinually increased. Basic modernization took place in 1997 by constructing a new enamel line The company became the largest seller of water heaters at home and in 1994 started exporting. The company exports to 16 European countries. In 2003, the company made 95 thousand heaters. In 2004, new hall was constructed as the preparation for constructing an enamel furnace. This furnace was constructed in Summer 2005, and enabled the company to increase the enamel shop capacity and improve the enamel procedure. In 2005, the product range was extended with accumulation tanks and in the end of the year, new types of angular water heaters OKHE were prepared. This year, the company produced water heaters and employed 210 employees. In 2006, 100 % share of DZ Dražice - strojírna, s.r.o. was transferred to Swedish company NIBE Industrier AB, which became the sole owner of DZ Dražice. During 2007, the extension to two assembly lines took place and the capacity increased to pcs annually. DZ Dražice started offering heat pumps NIBE, solar sets and flow and stainless heaters NIBE. Recently, the company started focusing on further product range extension. In 2011, the new products included water heaters with heat pump, hybrid water heater connectable to photovoltaic panels, outdoor accumulation tank, and introduced a heater with intelligent control and many function OKHE SMART.

35 PRODUCT RANGE OF DZ DRAŽICE INCLUDES WATER HEATERS, ACCUMULATIONS TANKS, AND HEAT PUMPS Accumulation tanks serve accumulation of excessive heat from its source. The source may be a solid fuel boiler, heat pump, solar collectors, fireplace inserts, etc. Some types of tanks allow combination of connecting even multiple sources. Heat pump ground-water, water-water These heat pumps receive the heat from the ground top surface, rock bed or ground water represent a great method for heating family houses, apartment houses, and other larger buildings. They are supplied with integrated reservoir for water heating or without it. Heat pumps air-water These pumps receive heat from the surrounding air. Unlike the simpler pump types air-air, these are connected nected to the building heating system and can heat the house and hot water. Ventilation heat pumps Ideal for heating households and heating hot water. The ventilation heat pump provides the building ventilation, receives energy from warm waste air, and uses it for heating and warm water heating.

36 Družstevní závody Dražice - strojírna s.r.o. Dražice 69, Benátky nad Jizerou Czech Republic Phone no.: +420 / Fax: +420 / prodej@dzd.cz, Version 1/2013 The manufacturer reserves the right for changes. Current version is available on