OKHE SMART

OKHE SMARTSmart water heater with electronic thermostat and the option of connection to HDO. It includes autodidactic algorithm and heats water if required. It is possible to switch to several modes (MANUAL, MANUAL HDO, OPTIMUM, PROG, SMART, ANTI FREEZE). The heater is controlled by means of the operating system Android/iOS.

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With an inner enamelled vessel

NADO 500, 750, 1000 v1

Character

Storage tanks NADO contains an inner enamelled vessel with volume from 100, 160 up to 200 liters according to the dimension of the storage tank. In standard design the flange is closed. Storage tanks are delivered without insulation. The insulation is available on request.

Technical data

 

Type

NADO 500/100 v1
500/160 v1
500/200 v1

NADO 750/100 v1
750/160 v1
750/200 v1
NADO 1000/100 v1
1000/160 v1
1000/200 v1
Volume [l] 383
305
265
680
829
562
907
829
789
HW reservoir capacity [l] 92
170
210
92
170
210
92
170
210
Maximum pressure in the tank [MPa] 0,3 0,3 0,3
Maximum pressure in the inner tank [MPa] 0,6 0,6 0,6
Maximum heating water temperature in the tank [°C] 90 90 90
Maximum utility water temperature in the inner reservoir [°C] 90 90 90
Heating surface of the inner tank [m2] 1,25
1,62
1,95
1,25
1,62
1,95 
1,25
1,62
1,95
Performance of a warm water at 40 °C at the tank 53 °C and inlet water of 15 °C / hot water flow [l / (l / min)]  260 / 5
490 / 5
750 / 5
260 / 5
490 / 5
750 / 5
260 / 5
490 / 5
750 / 5 
Performance of a warm water at 40 °C at the tank 80 °C and inlet water of 15 °C / hot water flow [l / (l / min)]  650 / 5
1170 / 5
1450 / 5
650 / 5
1170 / 5
1450 / 5 
650 / 5
1170 / 5
1450 / 5 
Weight [kg] 118
125
132
143
151
157
160
168
174
Maximum number x power of heating unit TPK 210-12 [number x kW] 1 x 12 1 x 12 1 x 12

 

Type

NADO 500/300 v1

NADO 750/250 v1
Volume [l] 196 512
HW reservoir capacity [l] 279 260
Maximum pressure in the tank [MPa] 0,3 0,3
Maximum pressure in the inner tank [MPa] 0,6 0,6
Maximum heating water temperature in the tank [°C] 90 90
Maximum utility water temperature in the inner reservoir [°C] 90 90
Heating surface of the inner tank [m2] 2,58 2,15
Performance of a warm water at 40 °C at the tank 53 °C and inlet water of 15 °C / hot water flow [l / (l / min) 260 / 10 490 / 10
Performance of a warm water at 40 °C at the tank 80 °C and inlet water of 15 °C / hot water flow [l / (l / min)] 650 / 10 1170 / 10
Weight [kg] 146 184
Maximum number x power of heating unit TJ 6/4" [number x kW] 1 x 9 (2 x 4,5) 3 x 9

  

    NADO 500/100 v1                NADO 750/250 v1

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NADO 500, 750, 1000 v2

Character

Storage tanks NADO are produced with a flange with spacing of screws 210 mm for assembly with a heating flange TPK. The tank contains an exchanger with heating surface 1.5 m2 for connection to another heating system (for example SOLAR). The tank contains an inner enamelled vessel of 100 or 140 liters volume, according to dimension of the storage tank. Placement and quantity of sockets can be changed in dependence on an order. In the standard design the flange is closed. Storage tanks are delivered without insulation. The insulation is available on request.

Technical data

TypeNADO 500/100 v2
500/140 v2
NADO 750/100 v2
750/140 v2
NADO 1000/100 v2
1000/140 v2
Volume [l] 369
321
666
618
893
845
HW reservoir capacity [l] 92
140
92
140
92
140
Maximum pressure in the tank [MPa] 0,3 0,3 0,3
Maximum pressure in the exchanger [MPa] 1 1 1
Maximum pressure in the inner tank [MPa] 0,6 0,6 0,6
Maximum heating water temperature in the tank [°C] 90 90 90
Maximum heating water temperature in the exchanger [°C] 110 110 110
Maximum utility water temperature in the inner reservoir [°C] 90 90 90
Heating surface of the inner tank [m2] 1,25
1,43
1,25
1,43 
1,25
1,43 
Heating surface of the exchanger [m2] 1,5 1,5 1,5
Volume of the exchanger  [l] 10,5 10,5 10,5
Performance of a warm water at 40 °C at the tank 53 °C and inlet water of 15 °C / hot water flow [l / (l / min)]  260 / 5 490 / 5 750 / 5
Performance of a warm water at 40 °C at the tank 80 °C and inlet water of 15 °C / hot water flow [l / (l / min)]  650 / 5 1170 / 5 1450 / 5
Volumetric flow heat exchanger [m3/h] 0,3 0,3 0,3
Weight [kg] 144
147
169
173
186
190
Maximum number x power of heating unit TPK 210-12 [number x kW] 1 x 12 1 x 12 1 x 12
Maximum number x power of heating unit TJ 6/4" [number x kW] 1 x 9 1 x 9 1 x 9

    

                                              NADO 500/100 v2               NADO 500/140 v2

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NADO 500, 750, 1000 v3

Character

Storage tanks NADO are produced with flange with spacing of screws 210 mm for assembly with heating flange TPK. The tank contains exchanger with heating surface 1.5 m2 for connection to another heating system (for example SOLAR). The tank contains inner enamelled vessel with volume of 100 liters. The placement and quantity of the sockets can be changed in dependence on the order. In the standard design the flange is closed. Storage tanks are delivered without insulation. The insulation is available on request.

Technical data

TypeNADO 500/100 v3NADO 750/100 v3NADO 1000/100 v3
Volume [l] 355 652 879
HUW reservoir capacity [l] 92 92 92
Maximum pressure in the tank [MPa] 0,3 0,3 0,3
Maximum pressure in the exchanger [MPa] 1 1 1
Maximum pressure in the inner tank [MPa] 0,6 0,6 0,6
Maximum heating water temperature in the tank [°C] 90 90 90
Maximum heating water temperature in the exchanger [°C] 110 110 110
Maximum utility water temperature in the inner reservoir [°C] 90 90 90
Heating surface of the inner tank [m2] 1,25 1,25 1,25
Heating surface of the exchanger (up/down) [m2] 1,5 / 1,5 1,5 / 1,5 1,5 / 1,5
Volume of the exchanger (up / down) [l] 10,5 / 10,5 10,5 / 10,5 10,5 / 10,5
Performance of a warm water at 40 °C at the tank 53 °C and inlet water of 15 °C / hot water flow [l / (l / min)] 260 / 5 490 / 5 750 / 5
Performance of a warm water at 40 °C at the tank 80 °C and inlet water of 15 °C / hot water flow [l / (l / min)] 650 / 5 1170 / 5 1450 / 5
Weight [kg] 170 195 212
Maximum number x power of heating unit TPK 210-12 [number x kW] 1 x 12 1 x 12 1 x 12

          NADO v3

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NADO 300, 500, 750, 1000 v6

Character

NADO v6 accumulation tanks are produced with two G 6/4" funnels to assemble a screw-in heating unit TJ with an extended cooling unit of 2×6 kW maximum power output. The tank contains a tubular steel exchanger of 2.2 or 3.3 m2 surface to connect an additional heating system (e.g. SOLAR). The tubular steel exchanger placed in lower part of the tank cannot be used for flow heating of hot water. The tank contains a submerged stainless steel exchanger for preparation of hot water of 20, 25, 35 or 45 litre capacity, depending on the size of accumulation tank. Upon customer's request, the distribution of funnels and their quantity can be modified. Accumulation tanks are supplied without insulation. The insulation is available on request.

Technical data

TypeNADO 300/20 v6
(with insulation)
NADO 500/25 v6NADO 750/35 v6NADO 1000/45 v6
Volume [l] 300 418  702 913
HV reservoir capacity [l] 20 23  32 37
Heating surface of the stainless steel exchanger [m2] 4,5 6,25  8,5 10 
Heating surface of the exchanger (down) [m2] 1,6 2,2  2,2 3,3 
Maximum tank pressure [MPa] 0,3 0,3  0,3 0,3 
Maximum pressure of exchanger [MPa] 1 1  1
Maximum pressure of stainless exchanger [MPa] 0,6 0,6  0,6 0,6 
Maximum heating water temperature in the tank [oC] 90 90  90 90 
Maximum heating water temperature in the exchanger [°C] 110 110  110 110 
Maximum water temperature in the inner reservoir [°C] 90 90  90 90 
Výdatnosť teplej vody 40 ° C pri teplote zásobníka 53 ° C a vstupnej vode 15 ° C / prietok TV [l / (l / min)] 210 / 10 260 / 10 490 / 10 750 / 10
Výdatnosť teplej vody 40 ° C pri teplote zásobníka 80 ° C a vstupnej vode 15 ° C / prietok TV [l / (l / min)] 520 / 10 650 / 10 1170 / 10 1450 / 10
Maximum number x power of heating unit TJ 6/4" [number x kW] with extended cooling section 2 x 4,5 2 x 6  2 x 6 2 x 6 
Weight [kg] 100 145  176 208 

       

                NADO 300/20 v6                                                                NADO 500/20 v6

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NADO 500, 750, 1000 v7

Character

NADO accumulation tanks are produced with two G 6/4" funnels (it does not apply to the 500 litre capacity) to assemble a screw-in heating unit TJ with an extended cooling unit of 2×9 kW maximum power output. The tank contains an exchanger of 2.5 or 3.3 m2 surface to connect an additional heating system (e.g. SOLAR).  The tubular steel exchanger placed in lower part of the tank cannot be used for flow heating of hot water. The tank contains an inner enamelled accumulator of 200 litre capacity. Upon customer's request, the distribution of funnels and their quantity can be modified. Accumulation tanks are supplied without insulation. The insulation is available on request. The NADO 500/200 v7 accumulation tank cannot be equipped with heating with electrical elements.

Technical data

TypeNADO 500/200 v7NADO 750/200 v7NADO 1000/200 v7
Volume [l] 220 560 707
HW reservoir capacity [l] 233 233 233
Maximum tank pressure [MPa] 0,3 0,3 0,3
Maximum pressure of exchanger [MPa] 1 1 1
Maximum pressure in the inner tank [MPa] 0,6 0,6 0,6
Heating surface of the inner tank [m2] 2,29 2,29 2,29
Volumetric flow heat exchanger [m3/h] 0,6 0,6 0,6
Heating surface of the exchanger [m2] 2,5 3,3 3,3
Volume of the exchanger [l] 18 25 25
Maximum heating water temperature in the tank [oC] 90 90 90
Maximum heating water temperature in the exchanger [°C] 110 110 110
Maximum utility water temperature in the inner reservoir [°C] 90 90 90
Performance of a warm water at 40 °C at the tank 53 °C and inlet water of 15 °C / hot water flow [l / (l / min)] 260 / 10 490 / 10 750 / 10
Performance of a warm water at 40 °C at the tank 80 °C and inlet water of 15 °C / hot water flow [l / (l / min)] 650 / 10 1170 / 10 1450 / 10
Maximum number x power of heating unit TJ 6/4" [number x kW] with extended cooling section - 2 x 6 2 x 6
Weight [kg] 166 200 231

 

                              NADO 500/200 v7

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NADO 800/35 v9, NADO 1000/35 v9

Character

Tanks are produced in 800 and 1000-litre volumes. Tanks and tubular heat exchangers are made of steel, without the inner surface treatment, the outer surface of the tank is provided with a protective paint. Individual versions are equipped with a tubular exchanger and a submersed stainless exchanger of 35 litre volumes, and two funnels G 1/½“ mm, with the possibility to install an electric heating element of TJ 6/4" series. The storage tanks are delivered without insulation. The insulation is available on request.

Technical data

TypeNADO 800/35 v9NADO 1000/35 v9
Volume [l] 820 903
Volume of the stainless steel exchanger [l] 32 32
Volume of the lower exchanger [l] 25 25
Volume of the upper exchanger [l] 18 25
Weight [kg] 222 255
Heating surface of the stainless steel exchanger [m2] 8,5 8,5
Heating surface of the lower exchanger [m2] 3,3 3,3
Heating surface of the upper exchanger [m2] 2,2 3,3
Maximum pressure in the tank  [MPa] 0,3 0,3
Maximum pressure in the stainless steel exchanger  [MPa] 0,6 0,6
Maximum pressure in the lower /upper exchanger [MPa] 1 1
Maximum heating water temperature in the tank and exchanger [oC] 90 90
Maximum heating water temperature in the heating exchanger [°C] 110 110
Performance of a warm water at 40 °C at the tank 53 °C and inlet water of 15 °C / hot water flow [l / (l / min)] 620 / 10 750 / 10
Performance of a warm water at 40 °C at the tank 80 °C and inlet water of 15 °C / hot water flow [l / (l / min)] 1287 / 10 1450 / 10
Maximum number x power of heating unit TJ 6/4" [number x kW] with extended cooling section 2 x 6 2 x 6

 

                              NADO 800/35 v9

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Photogallery

NADO 300/60
NADO 500/300