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2

 

PERATION AND FITTING INSTRUCTIONS 

2.1

 

OPERATING CONDITIONS 

The heater may only be used in accordance with the conditions specified on the nameplate

 

and  the  instructions  contained  in  this  manual.  Besides  the  legally  acknowledged  national 
regulations and standards, also conditions for the connection defined in local electric and water 
works have to be adhered to, as well as the installation and operation manual.

 

 

The temperature at the place of heater installation must

 

be higher than +2°C; and the room 

must  not  freeze.  The  heater  has  to  be  mounted  at  such  a  place  that  can  be  counted

 

with  as  handy;  it  means  that  the  appliance  must  be  easily  accessible  for  possibly  necessary 
maintenance, repair or replacement, as the case may be. 

 

 

If  water  is  strongly  calcareous  we  recommend  that  any  of  the  common  decalcifying  device

 

was  installed  with  the  appliance,  or  the  thermostat  to  be  set  to  the  minimum  operation 
temperature of 60°C (Figure 6). For proper operation, drinkable water of adequate quality shall 
be used.

 

 
 

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 choose 
adequate  fixtures.

 

Should  you  have  any  doubts  regarding  the

 

wall  bearing  capacity,  consult

 

the suspension with a building specialist.

 

 

Neither the control knob of the thermostat, nor another part of the control panel is a bearing 
part which may be used for any handling of the heater! 

 

If the hot water heater is mounted in a 

tight, smaller space

, or in an intermediate ceiling, etc., 

you have to make sure that the connecting side of the appliance (connections to water supply, 
area for electric 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 left available under the heater. 
When  mounted  directly  under  the  ceiling,  the  distance  from  the  ceiling  has  to  be 

100 mm

 

at least. 

 

 

If the water heater is mounted in enclosed areas, inter

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ceilings, built

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in structures and recesses, 

ensure sufficient access to service fittings, electrical terminal boards, anodes and manholes. 
Minimum spacing from manhole is 600 mm. 

 

 

The heater is mounted in vertical position directly on the wall. Fastening 

screws must have 

guaranteed spacing t = 180 mm

.

 

 

 

Содержание OKHE ONE20

Страница 1: ...WATER HEATER FOR VERTICAL MOUNTING Electric water heaters OKHE ONE20 Dru stevn z vody Dra ice stroj rna s r o Works Cooperative Dra ice Machine Plant Ltd Dra ice 69 294 71 Ben tky nad Jizerou tel 420...

Страница 2: ...FIXTURES 8 2 4 ELECTRICAL INSTALLATION 10 2 4 1 GENERAL INFORMATION FOR ELECTRICAL INSTALLATION 10 2 5 OPERATION 10 2 6 FIRST COMMISSIONING 11 2 7 PUTTING OUT OF SERVICE EMPTYING 11 2 8 INSPECTION MAI...

Страница 3: ...onsible 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 wi...

Страница 4: ...umption 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 optio...

Страница 5: ...44 MAX OPERATING TEMPERATURE OF HOT WATER HW C 80 RECOMMENDED HOT WATER HW TEMPERATURE C 60 HEIGHT OF THE HEATER mm 591 SIZE OF THE HEATER width x depth mm 523x301 MAX WEIGHT OF THE HEATER WITHOUT WA...

Страница 6: ...with a quality polyurethane insulation that ensures minimum heat losses Wiring is installed in the bottom part of the heater Water temperature may be set by a thermostat in the range from 5 C to 74 C...

Страница 7: ...k 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 choose adequate fixtures Should you have any dou...

Страница 8: ...h a check valve is supplied with the heater It is necessary to check the safety valve each time before putting it into operation It is checked by manual moving of the membrane from the seat turning th...

Страница 9: ...ble 3 Figure 3 Figure 4 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 0 7 0 7 up to 0 56 1 1 up to...

Страница 10: ...en colour of minimum cross section of 4 mm2 Access to the power section of the heater is only possible once the heater is disconnected from the power supply and the cover of the heater unscrewed Adher...

Страница 11: ...eck the water main and wiring Check proper placement of the operating and safety thermostat thermal fuse sensors The sensors must be inserted all the way in first the operating and then the safety the...

Страница 12: ...d after each heater shutdown for more than 5 days Attention The inlet cold water pipe and the connection fitting of the heater may heat up If the hot water heater does not work or if hot water is not...

Страница 13: ...CAUSES FAILURE SYMPTOM INDICATOR SOLUTION Water is cold Light on The temperature set on the thermostat is too low Heating element failure Water is cold Light off No supply voltage Thermostat failure...

Страница 14: ...ll hot water outputs must have a combination faucet Before filling the heater with water for the first time it is recommended to fasten the flange connection nuts of the tank It is not allowed to hand...

Страница 15: ...4 3 DISPOSAL OF PACKAGING MATERIAL AND NON FUNCTIONING PRODUCT The packaging that the product was delivered in has been paid for in form of a service fee for the provision of the return and recovery...

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