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USE AND MAINTENANCE 

 
Once you have connected the water heater to the water line and the electric network, the 
water heater is ready for operation. 
 
By  turning  the  thermostat  knob  attached  to  the  front  of  the  protective  cover,  choose  the 
desired  water  temperature  between  25°C  and  75°C.  We  recommend  the  setting  position 
"e".  This  is  the  most  economical  setting  where  the  water  temperature  is  about  41°C  for 
KRO/KRU 0520 or 35°C for KRO/KRU 1020. Calcification and heat loss are lower with this 
setting than at higher temperatures (item II 55 °C and III 75 °C). 
 
Due to the temperature regulator hysteresis (±7 K) and potential radiation losses (cooling 
of the plumbing), the temperatures quoted are subject to a tolerance of ± 10K. 

The operation of the water heater is indicated by a control lamp, which illuminates until the 
water in the unit has reached the desired temperature or the water heater is switched off.  
When  the  water  is  heated,  its  volume  changes.  With  a  pressure-free  connection,  the 
excess water therefore drips out of the mixed tap. Do not try to prevent this dripping (e.g. 
by tightening the mixed tap), since this may result in damage to the mixed tap. 
If the unit is put out of action or remains unused for a lengthy period of time, then it must be 
drained and completely isolated from the power supply. 
In  rooms  permanently  subject  to  frost  damage,  the  water  heater  must  be  drained  before 
the start of the cold weather season if the device will be out of action for several days and 
is not being operated in frost protection mode " ". 
Do  not  use  any  scouring  agents  to  clean  the  device  and  do  not  use  any  paint  thinners 
(such as Nitro, trichloride, etc.) 
It  is  best  to  clean  it  using  a  damp  cloth  with  a  few  drops  of  a  liquid  household  cleaning 
agent. In hospitals and other public buildings, it is essential to comply with the prevailing 
regulations for cleaning and disinfection. 
Flawless functioning and a long service life are ensured by regular service. The first check 
is  to  be  performed  by  an  expert  after  about  2  years  of  operation.  During  this  check,  the 
corrosion protection anode is checked and limescale is removed if necessary. The amount 
of calcification depends on the water quality, the water quantity and the water temperature. 
Based on the determined amount of calcification after 2 years of operation, the expert will 
recommend the time for the next inspection. 
 

We ask you to not repair any faults of the water heater yourself, but rather to inform 
the nearest customer service representative.

 

 

Содержание KRO

Страница 1: ...KRO KRU 5 10L...

Страница 2: ...2 INSTRUCTIONS FOR USE 3...

Страница 3: ...e impermissible A defective unit may not continue to be operated Installation and commissioning may only be performed by qualified specialised personnel who therefore assume the responsibility for pro...

Страница 4: ...water preparation within closed spaces and may only be installed with due consideration of the relevant professional standards The unit must be used exclusively in accordance with the conditions set...

Страница 5: ...ll screws with a nominal diameter of at least 5 mm Depending on your needs you can choose between an over the sink table KRO and an under the table mount KRU DIMENSIONS A B C D E KRO 0520 390 264 256...

Страница 6: ...is no water in the system If the system line pressure is higher than 5 bars a pressure reducing valve must be installed before the mixed tap When choosing the mixed tap the manufacturer s specificatio...

Страница 7: ...of the mixed tap The water heater is full when bubble free water flows out of the outflow pipe of the mixed tap If the unit is operated without water the heater fuse will be damaged during the first u...

Страница 8: ...is loosened on both sides it can be removed by hand Then remove the thermostat knob and remove the fastening screw below the knob Last unscrew all four fastening screws and the casing can be removed N...

Страница 9: ...p If the unit is put out of action or remains unused for a lengthy period of time then it must be drained and completely isolated from the power supply In rooms permanently subject to frost damage the...

Страница 10: ...49 2 464 2 477 Temperature setting of the thermostat C e smart value 0 0 0 0 Volume l 5 5 5 7 9 8 9 9 Weight full kg 3 5 8 5 4 14 Connected rating W 2000 Connection voltage V 230 Protection class I T...

Страница 11: ...draining off any leaked water must be provided in order to prevent secondary damage in the sense of the product liability provisions 4 The warranty shall not apply in the following cases Improper tra...

Страница 12: ...t and having either failed to meet their exchange or repair obligations or not having done so within a reasonable period 8 The guarantee period shall neither be renewed nor extended as a result of the...

Страница 13: ...sary as a trained professional will inspect the storage tank and analyse the cause of the fault To avoid any confusion regarding the storage tank during transportation it must be provided with a clear...

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