background image

- 4 -

 

 

1

 

TECHNICAL SPECIFICATION OF PRODUCT 

1.1

 

FUNCTION DESCRIPTION 

After the heater is connected to electric network, the heating element starts heating water.  The element 
is turned on and off by a thermostat. Thermostat can be set as per your need within the range from 5 

°C

 

to 75 

°C.  We  recommend  setting  service  water  to  max  temperature  of  “OPTIMUM”

.  This  temperature 

ensures the optimal operation of the heater. After reaching the temperature set, the thermostat switches 
off  the electric  circuit  and  thus  discontinues  water  heating.  The  control  light  signals  if  the  element  is  in 
operation (light is on) or if it is off (the light goes out). In case of longer operation without using the heated 
volume, the thermostat has to be set to position 5 

°C to 12

 

°C (set the “snowflake” symbol on the thermostat 

selector) to avoid its freezing.  

1.2

 

ADVICE FOR CUSTOMERS

 

1.2.1

 

HOT WATER CONSUMPTION 

With  its  design,  the  electric  accumulation  heater  TO 

  20.1  is  suitable  for  installations 

in bathrooms, lavatories, kitchens or near sanitary units of panel flats, and complies with the 
requirements of Standards, with the IP 44 protection class. Its benefit is that it heats up water 
by  power  in  an  unlimited  all-day  time  range.  The  time  of  heating  service  water  to  the 
recommended temperature of 

“OPTIMUM”

 is about 31 minutes. 

Consumption of hot water in households depends on the number of people, amount of sanitary 
equipment, length, diameter and insulation of piping in the flat, or on individual habits of users. 
The cheapest option of water heating comes at the time when the electricity rate is reduced. 

1.2.2

 

ENERGY SAVING 

Find out in what time intervals your electricity supplier provides reduced tariff and, depending 
on  that  information,  select  relevant  volume  and  power  input  of  the  heater  so  that  your  hot 
water consumption covered the needs of your household. 

1.2.3

 

EMERGENCY POWER CONSUMPTION 

According  to  current  legislation,  the  standby  consumption  is  stated  in  the  value  of  annual 
consumption of electric energy (kWh), which is measured according to the corresponding load 
profile  and  calculated  according  to  the  formulas  and  requirements  of  EU  Regulation 
No. 812/2013. 

 

 

Summary of Contents for DRAZICE TO - 20.1

Page 1: ...PERATING AND INSTALLATION MANUAL ELECTRIC WATER HEATER TO 20 1 Družstevní závody Dražice strojírna s r o Dražice 69 294 71 Benátky nad Jizerou tel 420 326 370 911 fax 420 326 370 980 e mail export dzd cz ...

Page 2: ...NS 6 2 1 OPERATING CONDITIONS 6 2 2 WALL MOUNTING 6 2 3 PLUMBING FIXTURE 7 2 4 ELECTRIC WIRING 9 2 4 1 ELECTRIC INSTALLATION GENERAL INFORMATION 9 2 5 FIRST HEATER COMMISSIONING 10 2 6 PUTTING OUT OF SERVICE DISCHARGE 10 2 7 INSPECTION MAINTENANCE CARE FOR THE APPLIANCE 11 2 8 MOST FREQUENT FUNCTION FAILURES AND THEIR CAUSES 12 3 IMPORTANT NOTICES 12 3 1 INSTALLATION REGULATIONS 12 3 2 DISPOSAL OF...

Page 3: ...ble person or unless properly instructed by such responsible person The manufacturer reserves the right for engineering modification of the product The product is designed for permanent contact with drinkable water It is recommended to use the product in indoor environment with air temperatures from 2 C to 45 C and a relative humidity up to 80 Product s reliability and safety is proven by tests im...

Page 4: ...oms lavatories kitchens or near sanitary units of panel flats and complies with the requirements of Standards with the IP 44 protection class Its benefit is that it heats up water by power in an unlimited all day time range The time of heating service water to the recommended temperature of OPTIMUM is about 31 minutes Consumption of hot water in households depends on the number of people amount of...

Page 5: ... minimum heat losses Electric wiring is placed in the bottom part of the heater under an easily removable guard of the heater by loosening two screws on that guard Temperature of water can be set by a thermostat within the range between 5 C and 75 C using the symbols on the thermostat selector button Figure 1 Cold water inflow is indicated with a blue ring hot water outflow is indicated with a red...

Page 6: ...placement as the case may be If water is strongly calcareous we recommend that any of the common decalcifying devices was installed with the appliance or that the thermostat was set to the minimum operating temperature of 55 C setting to position OPTIMUM For proper operation drinkable water of adequate quality shall be used To avoid potential sediments we recommend that the device was installed to...

Page 7: ...ric plugging remained accessible and no heat accumulation occurs Free space of up to 600 mm from the bottom edge of the heater has to be available under the heater When mounted directly under the ceiling the distance from the ceiling has to be 100 mm at least 2 3 PLUMBING FIXTURE The safety valve can be mounted both in vertical and horizontal position in the indicated direction of cold water flow ...

Page 8: ...emented at least once a month and after each heater shutdown for more than 5 days Water may be dripping off the drain pipe of the safety valve the pipe must be open into the air pointed down environment temperatures must not drop below zero Find necessary pressure values in the below Table 2 Heaters must be provided with a discharge valve mounted on the cold service water inlet to the heater for p...

Page 9: ...on must be confirmed on the warranty certificate The circuit must contain circuit breaker protector In order to enhance the protection of connection in bathrooms and shower inserts pursuant to Standard the appliance is provided with a grounding terminal for connecting with a yellow green protective conductor on minimum section 4 mm2 To adjust the distance from the wall connect the wire of the exte...

Page 10: ...e sensors must be inserted all the way in first the operating and then the safety thermostat 2 Open the hot water valve on the combination faucet 3 Open the cold water inlet valve to the heater 4 As soon as the water starts running through the hot water valve the heater is filled and the valve can be closed 5 Prior to putting the heater into operation screw on the front heater guard which closes t...

Page 11: ... to be checked regularly based on the information contained in the attached safety valve manual In common operation such a check needs to be implemented at least once a month and after each heater shutdown that exceeds 5 days Attention In doing so the cold water supply pipe and the connection fitting of the tank may get heated If the hot water heater does not work or if hot water is not withdrawn ...

Page 12: ...ric installation handling setting and regulation feature exchange may only be implemented by an authorized service company The thermal fuse must not be turned off In case of thermostat defect the thermal fuse interrupts electric power input to the heating element if the water temperature in the heater exceeds 90 C Both the electric and water installation must follow and meet the requirements and r...

Page 13: ... Take the water boiler packages to a waste disposal place determined by the town When the operation terminates disassemble and transport the discarded and unserviceable heater to a waste recycling center collecting yard or contact the manufacturer 4 PRODUCT ACCESSORIES The product is supplied with a safety valve G1 2 screws 6 x70 mm 2 pcs plastic dowels 12x60 mm 2 pcs The above parts are packed an...

Reviews: