background image

 

 

The  room  in  which  the  appliance  will  be  operated,  must  be  frost-free.  The  appliance  has  to  be  mounted  at  a 
convenient place, it means that the appliance must be easily available for potential necessary maintenance, repair or 
replacement, 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  the  thermostat  to  be  set  to  minimum  operation  temperature  of  60

o

(setting to position “

60

“). For proper operation, drinkable water of adequate quality shall be used.

 

To avoid potential sediments we recommend that the device was installed together with a water filter. 

 

 
5. 

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. 
The minimum diameter of the bolts for suspending the heater is 12 mm. 

When mounting the anchor bolts follow the 

guide provided by the anchor bolts' manufacturer.

 

Mount  the  anchors  by  the  dimensional  drawing  in  350  mm  spacing,  and  screw  firmly  a  steel  hinge  onto  the  wall.  
Check its proper vertical positioning. 

 

Recheck the torque of the suspension bolts on the heater and suspend the heater. 
If needed, the suspension bolts can be shifted by 50 mm in vertical direction.  
Using the detent support in the bottom part of the heater make sure it runs in parallel with the wall! 

 

 

If the hot water heater is mounted in a 

tight, small 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 500 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 50 mm at least. 

 

 

5.1

 

Connection to power water 

 

Power water connects to pipes with ¾“ thread in the bottom part of the heater. 
Blue - cold water supply, red – hot water outlet. For potential disconnection of the heater, the service water inlets and 
outlets must be provided with screw coupling Js 3/4“. Safety valve is mounted on the cold water inlet identified with a 
blue ring. 

 

Each hot service water pressure heater must have a membrane spring loaded with a safety valve. Nominal clearance of 
safety valves is defined in the ČSN 0 60830 standard. The heaters are not equipped with a safety valve. The safety 
valve must be easily accessible, as close to the heater as possible. The input pipes must have at least the same 
clearance as the safety valve. The safety valve is placed high enough to secure dripping water drain by gravity. We 
recommend mounting the safety valve onto a branch pipe. This allows easier exchange without having to drain the 
water from the heater. Safety valves with fixed pressure settings from the manufacturer are used for the assembly. 
Starting pressure of a safety valve must be identical to the maximum allowed heater pressure, and at least 20% higher 
than the maximum pressure in the water main. If the water main pressure exceeds such value, a reduction valve must 
be added to the system.

 

No stop valves can be put between the heater and the safety valve. During the assembly, 

follow the guide provided by the safety equipment manufacturer. It is necessary to check the safety valve each time 
before putting it into operation. It is checked by manually moving of the membrane from the seat, turning the make-
and-break device button always to the right. After being turned, the button must click back into a notch. Proper 
function of the make-and-break device results in water draining through the safety valve outlet pipe. In common 
operation, such a check needs to be implemented 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.  
When draining the heater, use a recommended 
drain valve. First, close water input into the heater. 
Find  necessary  pressure  values  in  the  following 
table.  
For proper safety valve operation, a backflow valve 
must  be  mounted  on  the  inlet  pipes,  preventing 
spontaneous heater draining and hot water penetrating back into the water main. 

Safety valve 

starting pressure 

(MPa)

 

Admissible operating 

water heater 

pressure (MPa)

 

Max. pressure in 

the cold water pipe 

(MPa)

 

0.6 

0.6 

do 0.48 

0.7 

0.7 

do 0.56 

do 0.8 

Содержание OKHE 100

Страница 1: ...EATERS FOR VERTICAL MOUNTING Electric water heaters OKHE 80 OKHE 100 OKHE 125 OKHE 160 Družstevní závody Dražice strojírna s r o Works Cooperative Dražice Machine Plant Ltd Dražice 69 29471 Benátky nad Jizerou Tel 326 370 911 Fax 326 370 980 www dzd cz ...

Страница 2: ...intenance care for the appliance 7 8 Most frequent function failures and their causes 8 9 Installation regulations 8 Environment Type 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 1 Function description The heater is designed for accumulation heating of service water using electricity Water is heated by an electri...

Страница 3: ...c guard 2 2 Temperature setting Water temperature is set by turning the thermostat knob The desired symbol is adjusted against the fixed point on the control panel Notice Adjusting the thermostat selector at the left backstop does not mean permanent shutoff of the heating element When the heater is in use without blocking the daily rate we do not recommend the temperature to be set above 65 C The ...

Страница 4: ...ment well 7 thermowell 3 ceramic heating element 2000W 8 hot water withdrawal pipe 4 operation thermostat with external control 9 Mg anode and safety thermostat 10 enamelled steel receptacle 5 electric installation guard 11 polyurethane insulation 6 cold water filling pipe 12 heater shell 4 Operating conditions 4 1 General The tank shall only be used in accordance with the conditions specified on ...

Страница 5: ...e service water inlets and outlets must be provided with screw coupling Js 3 4 Safety valve is mounted on the cold water inlet identified with a blue ring Each hot service water pressure heater must have a membrane spring loaded with a safety valve Nominal clearance of safety valves is defined in the ČSN 0 60830 standard The heaters are not equipped with a safety valve The safety valve must be eas...

Страница 6: ...tition corresponding with the input wire diameter of 8 or 10 Heater is connected to power supply 1 PEN AC 230V 50Hz via a fixed movable wire The circuit must contain a breaker disconnecting all poles of the network and a circuit breaker protector Installations in bathrooms lavatories and showers must comply with the ČSN33 2000 7 701 standard To adjust the distance from the wall connect the wire of...

Страница 7: ...ot water heater is put out of service for a longer time or if it is not going to be used it has to be drained and disconnected from the electric supply network on all poles The switch for the supply lead or the fuse cut outs have to be shut off At places with permanent risk of frost the hot water heater must be drained before the cold season starts if the appliance remains out of service for sever...

Страница 8: ...stat failure Safety thermostat shut off probably due to failed operation thermostat Water is not warm enough LED is on Failure of one of the coils in the element 2x 1000W Temperature of water is not corresponding with the temperature on the control Defective thermostat Water is constantly dripping off the safety valve LED is not on Input pressure too high faulty safety valve Do not try to repair t...

Страница 9: ...elivered The service fee was paid pursuant to Act No 477 2001 Coll as amended at EKO KOM a s The client number of the company is F06020274 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 centre collecting yard or contact the manufacturer 05 2012 ...

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