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- 13 -

 

 

2.5

 

OPERATING ACTIVITY 

After  the  heater  is  connected  to  the  electric  network,  the  heating  element  starts  heating  the  water.  An 

electronic thermostat

 is used to control the temperature and water heating. The thermostat control range 

is 

0 °C

 to 

77 °C

. The temperature is indicated on the display. The thermostat displays the current measured 

temperature. Use the control knob to set the desired cut-off temperature. Turn the knob to the right to set 
a higher temperature, turn it to the left to set a lower temperature. When the cut-off temperature is set, the 
digits  on  the  display  are  flashing  -  indicating the  user  has  set  the  desired  temperature.  After  the  desired 
temperature  has  been  set,  the  value  remains  flashing  for  5  seconds,  then  the  current  temperature  is 
displayed. The heating indicator is on the right side of the display. The light indicates heating. 

Error, fault messages: 

E1 - flashing

 - fault of the temperature sensor (broken sensor, short circuit), indicated 

on the display. Water heating is not working during the fault indication. 

The  round  thermostat  knob  must  be  handled with care,  do  not  overturn  the  defined  position,  and  avoid 
stronger shocks and impacts. 

For long-term operation without use, it is advisable to set the thermostat to the position 

5 °C

 to 

10 °C

 (set 

the thermostat control to the 

snowflake

” 

symbol) to avoid freezing or turn off the power supply into the 

heater. Setting the thermostat to the zero position does not mean the heater has been turned off. 

In case of a power failure, the display turns off, it means also when the heating is turned off 
according to the HDO signal. The thermostat setting knob is still  active, so by turning it you 
can change the temperature, which only takes effect when the power is restored. 

2.6

 

FIRST COMMISSIONING 

Before opening the power supply, the tank must be filled with water. The process of first heating 
must be executed by licensed professional who has to check it. Both the hot water outlet pipe 
and safety armature parts may be hot. 

During the heating process the pressurized connection water that increases its volume due to 
heating  must  drip  off  the  safety  valve.  In  non-pressurized  connection  water  drips  off  the 
overflow  combination  faucet.  When  heating  is  finished,  the  set  temperature  and  the  actual 
temperature of consumed water should be roughly equal. After connecting the heater to the 
water  main  and  electrical  power  system,  and  after  checking  the  safety  valve  (following  the 
instructions attached to the valve), the heater can be put into operation. 

Before fist putting into service or after a longer shutdown the appliance has to be rinsed out and 
flushed yet before heating is activated. Before heating starts, the tank must be completely filled 
with  water  and  the  system  properly  flushed  and  vented.  First  heating  of  the  tank  has  to  be 
watched. 

 

 

Содержание OKHE ONE/E 120

Страница 1: ...ER FOR VERTICAL MOUNTING Electric water heaters OKHE ONE E 30 OKHE ONE E 50 OKHE ONE E 80 OKHE ONE E100 OKHE ONE E 120 Dru stevn z vody Dra ice stroj rna s r o Dra ice 69 294 71 Ben tky nad Jizerou te...

Страница 2: ...INSTALLATION 12 2 4 1 GENERAL INFORMATION FOR ELECTRICAL INSTALLATION 12 2 5 OPERATING ACTIVITY 13 2 6 FIRST COMMISSIONING 13 2 7 PUTTING OUT OF SERVICE DISCHARGE 14 2 8 INSPECTION MAINTENANCE CARE F...

Страница 3: ...le 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 dr...

Страница 4: ...MERS 1 2 1 HOT WATER CONSUMPTION 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 individu...

Страница 5: ...ERATURE OF HOT WATER HW C 80 RECOMMENDED HOT WATER HW TEMPERATURE C 60 HEIGHT OF THE HEATER mm 617 845 1112 1327 1552 HEATER DIMENSION width x depth mm 523x318 MAX WEIGHT OF THE HEATER WITHOUT WATER k...

Страница 6: ...e flange lid and the safety fuses and the second flange lids are without thermowells An anode rod is mounted onto the M8 nut Electric wiring is placed underneath the plastic removable cover Descriptio...

Страница 7: ...E ONE E 30 OKHE ONE E 50 OKHE ONE E 80 OKHE ONE E 100 OKHE ONE E 120 A 617 845 1112 1327 1552 B 318 318 318 318 318 D 523 523 523 523 523 E 500 730 920 1135 1360 F 350 560 750 950 1150 H 110 110 190 1...

Страница 8: ...2 2 WALL MOUNTING Prior to the mounting check the bearing capacity of the wall and the material it is made of considering the weight of the heater filled with water Depending on the wall material choo...

Страница 9: ...energetic performance drop will always occur due to deteriorated stratification of water However neither lifecycle nor terms of warranty are changed thereby Our heaters are tested for operation in th...

Страница 10: ...peration of the check valve with a check valve and a relief valve Figure 6 The safety valve with a check valve is supplied with the heater It is necessary to check the safety valve each time before pu...

Страница 11: ...11 Table 3 Figure 6 Figure 7 SAFETY VALVE START UP PRESSURE MPa ALLOWABLE OPERATING OVERPRESSURE OF WATER HEATER MPa MAXIMUM PRESSURE IN COLD WATER PIPES MPa 0 6 0 6 up to 0 48...

Страница 12: ...ure 8 The electric installation may only be connected repaired and inspected only by a person authorized to perform that activity Professional connection must be confirmed on the warranty card or supp...

Страница 13: ...lake symbol to avoid freezing or turn off the power supply into the heater Setting the thermostat to the zero position does not mean the heater has been turned off In case of a power failure the displ...

Страница 14: ...supply piping through the discharge valve for safety valve combination and with simultaneous opening of all hot water valves of connected fittings water can be also drained through safety valve for t...

Страница 15: ...same as during the initial putting in operation Do not use any abrasive cleaning agents such as liquid sand chemicals acid alkaline or dye thinners such as cellulose thinner trichlor and the like to...

Страница 16: ...ration thermostat Water is not warm enough Light on Failure of one of the coils in the element 2x 1000 W Temperature of water is not corresponding with the temperature set on the control Defective the...

Страница 17: ...e used for any handling with the heater 3 1 1 TEMPERATURE SETTING Water temperature is set by turning the thermostat knob The desired symbol is adjusted against the fixed point on the control panel Fi...

Страница 18: ...ing adjustment and replacement of the regulation elements shall only be performed by an authorized service company The thermal fuse must not be turned off In case of thermostat defect the thermal fuse...

Страница 19: ...is F06020274 Take the water heater packaging to a waste disposal place determined by the municipality When the operation terminates disassemble and transport the discarded and unserviceable heater to...

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