Stiebel Eltron DHC-E 8-10-12 с 14.02.2011: инструкция

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OPERATION

1. General 

information _________________________________________2

1.1 Safety 

information 

_______________________________________________ 2

1.2 

Other symbols in this document ______________________________ 3

2. Safety 

__________________________________________________________3

2.1 Intended 

use 

______________________________________________________ 3

2.2 General 

Information_____________________________________________ 3

2.3 Safety 

Precautions 

_______________________________________________ 3

2.4 Test 

symbols 

______________________________________________________ 3

3. General ________________________________________________________4

4. Troubleshooting ______________________________________________4

INSTALLATION

5. 

Mounting the appliance _____________________________________5

5.1 Application 

________________________________________________________ 5

5.2 Mounting 

__________________________________________________________ 5

5.3 Water 

connections 

_______________________________________________ 5

6. Electrical 

connection _________________________________________6

6.1 

DHC-E 8/10 - Appliance with output power options ______ 6

6.2 

Temperature setting/anti-scalding protection  ____________ 7

7. Commissioning _______________________________________________7

7.1 Appliance 

handover 

_____________________________________________ 7

8. Troubleshooting ______________________________________________7

8.1 

Display options LED diagnostic „traffic lights“ _____________ 7

8.2 Fault 

table 

_________________________________________________________ 7

9. Normal 

maintenance 

_________________________________________7

10. Technical 

Data 

________________________________________________8

10.1 Dimensioned 

drawing 

__________________________________________ 8

10.2 Wiring 

diagram 

__________________________________________________ 8

10.3 

Maximum temperature increase above ambient water 

temperature ______________________________________________________ 9

10.4 Data 

table 

________________________________________________________ 10

11. Spare 

parts 

_________________________________________________ 10

WARRANTY | ENVIRONMENT AND RECYCLING

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1. General  information

Note

Read these instructions carefully before using the 

appliance and familiarize yourself with its functions. Keep 

these instructions safe. Pass on the instructions to a new 

user if required.

1.1 Safety 

information

1.1.1  Structure of safety information

KEYWORD Type of risk

Here, possible consequences are listed that may 

result from not observing the safety information.

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Steps to prevent the risk are listed. 

1.1.2  Symbols. type of risk

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!

Injury 

Electrocution 

Burns or scalding 

1.1.3 Keywords

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DANGER 

If this information is not observed, it will result in serious 

injury or death.

WARNING 

If this information is not observed, it can result in serious 

injury or death.

CAUTION 

If this information is not observed, it can lead to medium 

or minor injury.

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1.2 

Other symbols in this document

Note

Notes are bordered by horizontal lines above and below 

the text. General information is identified by the symbol 

shown on the left.

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Read these notes carefully.

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Damage to the appliance and environment 

Appliance disposal 

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This symbol indicates that you have to do something. The ac-

tion you need to take is described step by step.

2. Safety

Observe the following safety information and regulations. 

Operate the appliance only when fully installed and with all safety 

equipment fitted.

2.1 Intended 

use

The appliance is intended for heating domestic hot water and can 

supply several draw-off points.

Any other use beyond that described shall be deemed inappro-

priate.

Observation of these instructions is also part of the correct use 

of this appliance.

2.2 General 

Information

Read this entire manual. Failure to follow all the guides, instruc-

tions and rules could cause personal injury or property damage. 

Improper installation, adjustment, alteration, service and use of 

this appliance can result in serious injury.

This appliance must be installed by a licensed electrician and 

plumber. The installation must comply with all national, state and 

local plumbing and electric codes. Proper installation is the re-

sponsibility of the installer. Failure to comply with the installation 

and operating instructions or improper use voids the warranty.

Save these instructions for future reference. Installer should leave 

these instructions with the consumer.

If you have any questions regarding the installation, use or opera-

tion of this water heater, or if you need any additional installation 

manuals, please call our technical service line, see last side.

2.3 Safety 

Precautions

!

DANGER Injury

Please read and follow these instructions.

Failure to follow these instructions could result in 

serioius personal injury or death.

Damage to the appliance and the environment

The appliance must be installed by a licensed electrician 

and plumber. The installation must comply with all 

national, state and local plumbing and electric codes.

Service of the appliance must be performed by qualified 

service TECHNICIANS.

DANGER Electrocution

Before proceeding with any installation, adjustment. 

alteration, or service of this appliance all circuit breakers 

and disconnect switches servicing the appliance must 

be turned off. Failure to do so could result in serious 

personal injury or death.

DANGER Electrocution

Never remove the appliance‘s cover unless the electricity 

servicing the appliance is turned off. Failure to do so 

could result in personal injury or death.

DANGER Electrocution

The appliance must be properly grounded. Failure to 

electrically ground the product could result in serious 

personal injury or death.

DANGER Burns

Water temperatures over 125  °F (52 °C)can cause 

severe burns instantly or death from scalding. A hot 

water scalding potential exists if the thermostat on 

the appliance is set too high. Households with small 

children, disabled or elderly persons may require that 

the thermostat be set at 113 °F (45 °C) or lower to prevent 

possible injury from hot water.

!

WARNING Injury 

Where children or persons with limited physical, sensory 

or mental capabilities are to be allowed to control this 

appliance, ensure that this will only happen under 

supervision or after appropriate instructions by a person 

responsible for their safety. 

Children should be supervised to ensure that they never 

play with the appliance.

2.4 Test 

symbols

See type plate on the appliance.

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3. General

The tankless water heater differs from conventional storage type 

water heaters in several ways. It does not store hot water. Instead, 

water is heated instantaneously as it flows through the appliance. 

Due to the absence of stand-by losses, the appliance offers greater 

energy efficiency than storage type water heaters.

2

6

_0

2_0

2

_1

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8

6

The input of heat into the water is electronically controlled. The 

appliance will deliver any water temperature between 86 °F (30 

°C) and 140 °F (60 °C). Please set the desired temperature using 

the knob on the front cover.

Note

For reasons of appliance efficiency and durability 

(scaling), the optimum temperature setting lies between 

86°F (30°C) and 120°F (50°C).

In case the “Power” light is flashing while the appliance operates, 

the water flow rate exceeds the heating capacity of the appli-

ance. Reduce the hot water flow rate in order to let the appliance 

achieve the set point temperature. The maximum temperature is 

electronically limited to 140 °F (60 °C). In case you have questions 

regarding the way you plan to use the appliance, please call our 

technical service line, see last side.

4. Troubleshooting

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 No hot water 

not enough flow rate to 

activate appliance

clean faucet aerator or shower 

head

Water not hot enough 

water flow too high 

reduce water flow rate until 

light on front cover stops 

blinking

If you cannot remedy the fault, notify the contractor who installed 

the appliance. To facilitate and speed up your enquiry, please pro-

vide the serial number from the type plate (000000-0000-000000).

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5.  Mounting the appliance

5.1 Application

One appliance can be used for the following applications:

one or multiple hand washing sinks

one kitchen sink

cabins with flow restriction at shower head.

A combination of two appliance can be used for whole apartment 

and house applications. Please contact STIEBEL ELTRON for special 

installation instructions.

All areas with a ground water temperature likely to exceed 65 °F 

(18 °C) year round:

Whole apartment or house

CAUTION Electrocution

Unit must be installed in a vertical position with the 

water fittings pointing downward. In this position the 

unit is splashproof, so that no water can soak in.

1

2

3

4

5

6

7

26

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2

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8

2

1

2

3

4

5

6

7

26

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2

_02

_1

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8

1

1  Hot valve (left)

2  Cold valve (right)

3 Sink

4  1/2“ main pipe

5  Water supply line for faucet installation

6 Shut-off valve

7  Electrical junction box

5.2 Mounting

f

Install appliance as close as possible to the main hot water 

draw-off points.

f

Install appliance in a frost free area. If frost may occur, re-

move appliance before freezing temperatures set in.

f

Leave a minimum of 5“ of clearance on all sides for servicing.

2

6

_0

2_0

2

_1

0

8

3

f

Remove plastic cover.

2

6

_0

2_0

2

_0

3

3

1

2

6

_0

2_0

2_

1

0

9

0

f

Screw the screws into the wall and hang the appliance. 

Screws and plastic wall anchors for mounting on masonry or 

wood are provided.

f

Secure the screws.

5.3 Water 

connections

Damage to the appliance and the environment

Excessive heat from soldering on copper pipes near the 

DHC may cause damage.

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All plumbing work must comply with national and applicable 

state and local plumbing codes.

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Notice for Australia / New Zealand: 

The installation shall comply with AS/NZS 3500.4.

f

A pressure reducing valve must be installed if the cold water 

supply pressure exceeds 150 PSI (10 bar).

f

Make certain that the cold water supply line has been flushed 

to remove any scale and dirt.

f

Install isolating valve in cold water line as shown in illustra-

tion “Mounting the appliance”. This allows the appliance to 

be isolated for maintenance purposes.

f

Cold water connection (inlet) is on the right side of the ap-

pliance, hot water connection (outlet) is on the left side of 

appliance.

f

Tankless water heaters such as the DHC-E are not required to 

be equipped with a Pressure and Temperature Relief Valve 

(P&T). If the local inspector will not pass the installation 

without a P&T, it should be installed on the hot water outlet 

side of appliance.

f

The appliance is designed for connection to copper tubing, 

PEX tubing or a braided stainless steel hose with a ½“ NPT 

female tapered thread. If soldering near the appliance is nec-

essary, please direct the flame away from the plastic housing 

of the appliance in order to avoid damage.

f

When all plumbing work is completed, check for leaks and 

take corrective action before proceeding.

6. Electrical  connection

DANGER Electrocution

Carry out all electrical connection and installation work 

in accordance with relevant regulations.

DANGER Electrocution

Only use a permanent connection to the power supply. 

The appliance must be able to be separated from the 

power supply by an isolator that disconnects all poles 

with at least 3 mm contact separation.

Damage to the appliance and the environment

Observe the type plate. The specified voltage must match 

the mains voltage.

DANGER Electrocution

Before beginning any work on the electric installation, 

be sure that main breaker panel switch is „off“ to 

avoid any danger of electric shock. All mounting and 

plumbing must be completed before proceeding with 

electrical hook-up. Where required by local, state or  

national electrical codes the circuit should be equipped 

with a „ground fault interrupter“.

DANGER Electrocution

As with any electric appliance. failure to electrically 

ground appliance may result in serious injury or death.

f

The appliance should be connected to a properly grounded 

dedicated branch circuit of proper voltage rating. In installa-

tions with several appliances, each appliance requires an 

independent circuit. Please refer to the technical data table 

for the correct wire and circuit breaker size.

26

_0

2

_02

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0

8

4

f

The wire must be fed through the rubber seal located be-

tween the hot and cold water connections. Then feed wires 

through strain relief clamp and tighten clamp down on wire. 

The „live“ wires must be connected to the slots on the ter-

minal block marked L and L (L and N). The ground wire must 

be connected to slot marked with the ground symbol. Strain 

relief clamp with screws and rubber seal are provided.

6.1 

DHC-E 8/10 - Appliance with output power op-

tions

For the DHC-E 8/10 instantaneous water heater, the output power 

is adjustable in 2 stages. In its delivered condition the appliance 

is set to 7.2 kW @ 240 V.

1

26

_0

2

_02

_1

0

8

8

1 coding plug

If the appliance should be installed with a different output power, 

take the following steps:

f

Insert the coding plug to the desired performance.

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ŝŝƃp

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5,4 kW

6,0 kW

6,6 kW

7,2 kW

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ŝŝƃp

ŝŗƃp

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7,2 kW

8,1 kW

8,8 kW

9,6 kW

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Mark the selected output power and voltage on the type

plate 

with a permanent marker.

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6.2 

Temperature setting/anti-scalding protection 

26

_0

2

_02

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0

8

9

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Connect the lead of the electronic temperature control 

to position „A1“ in order to get the maximum outlet 

temperature of 140 °F (60 °C).

The maximum temperature can be limited to 109 °F (43 °C):

f

Connect the lead of the electronic temperature control to po-

sition „A2“.

f

Reinstall the plastic cover.

7. Commissioning

DANGER Electrocution

Commissioning must only be carried out by an author-

ised contractor in accordance with safety regulations.

Damage to the appliance and the environment

Open hot water faucet for a few minutes until water flow 

is continuous and all air is purged from water pipes. The 

appliance’s plastic cover must be installed before the 

circuit breaker is turned on.

f

Turn on circuit breaker to bring electrical power to the 

appliance.

f

Turn the temperature selector clockwise and anti-clockwise, 

to calibrate the temperatur selector.

f

Adjust the water temperature to the desired level using the 

knob on the front cover of the appliance.

f

Turn on hot water and wait twenty seconds until temperature 

has stabilized. 

f

Check the water temperature with your hand and make sure 

that it does not feel too hot. Reduce temperature if this is 

necessary. A setting of 108 °F - 116 °F (42 - 47 °C) is recom-

mended for most applications.

f

Explain to the user how the appliance works and familiarise 

him or her with its use.

f

Advise the user about possible hazards (hot water tempera-

ture up to 140 °F (60 °C). Hand over these instructions, to be 

kept for future reference.

f

A setting of 108 °F - 116 °F (42 - 47 °C) is recommended for 

most applications.

7.1 Appliance 

handover

Explain the functions of the appliance to the user. Draw special 

attention to the safety information. Hand the operating and instal-

lation instructions to the user.

8. Troubleshooting

Danger of electrocution

To test the appliance, it must be supplied with power.

8.1 

Display options LED diagnostic „traffic lights“

êńĤù|źĒĤŒêĒĉń

red

illuminates in case of faults

yellow

illuminates when the appliance is heating water

green

flashing: The appliance is supplied with power

1

26

_0

2

_02

_1

0

8

8

1  LED diagnostic „traffic lights“

8.2 Fault 

table

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No hot water

circuit breaker off

safety thermal cut-out 

tripped

turn circuit breaker on

reset thermal cut-out 

not enough flow rate to 

activate appliance

clean filter screen at 

appliance

  

clean faucet aerator or 

shower head

Not enough hot water  filter screen clogged 

clean filter screen at 

appliance

Water not hot enough

water flow too high

reduce water flow rate until 

light on front cover stops 

blinking

  

  

supply correct voltage to 

appliance

f

If you are not able to resolve a problem please contact us, 

see last side, before removing the appliance from the wall. 

STIEBEL ELTRON is happy to provide technical assistance. In 

most instances, we can resolve the problem over the phone.

9. Normal  maintenance

STIEBEL ELTRON tankless water heaters are designed for a very 

long service life. Actual life expectancy will vary with water qual-

ity and use. The appliance itself does not require any regular 

maintenance.

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However, to ensure consistent water flow, it is recommended to 

periodically remove scale and dirt that may build up at the aera-

tor of the faucet(s), the filter screen in the appliance, or in the 

shower head.

10. Technical Data

10.1 Dimensioned 

drawing

E

F

F

F

F

D00000

1

7

7

6

2

b01  Electrical cable entry

c01 

cold water inlet

"NPT

1/2

c06 

hot water outlet

"NPT

1/2

10.2 Wiring 

diagram

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2/GRD ~ 208 / 240 V 

1/N/PE ~ 220 / 230 / 240 V 

8

5

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2_0

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1

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2/GRD ~ 208 / 240 V 

1/N/PE ~ 220 / 230 / 240 V 

8

5

_0

2_0

3_000

2

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10.3  Maximum temperature increase above ambient water temperature

Warm water flow rate [ GPM ] 

q|ļăŷ|Œ¼ļĒşŒù¼ŒŒ¼ăĤ¼ļ|Œşļ¼ĜƃÔ³%

Cold water inlet temperature

°F

39

50

59

68

77

86

95

104

113

122

131

DHC-E 8/10

5.4 kW @ 208 V

0.57

0.68

0.82

1.02

1.36

2.04

4.09

-

-

-

-

7.2 kW @ 240 V

0.76

0.91

1.09

1.36

1.82

2.72

5.45

-

-

-

-

7.2 kW @ 208 V

0.76

0.91

1.09

1.36

1.82

2.72

5.45

-

-

-

-

9.6 kW @ 240 V

1.01

1.21

1.45

1.82

2.42

3.63

6.61

-

-

-

-

DHC-E 12

9 kW @ 208 V

0.95

1.14

1.36

1.70

2.27

3.23

6.47

-

-

-

-

12 kW @ 240 V

1.26

1.51

1.82

2.27

3.03

4.31

6.61

-

-

-

-

q|ļăŷ|Œ¼ļĒşŒù¼ŒŒ¼ăĤ¼ļ|Œşļ¼ĜĜŗ³%

Cold water inlet temperature

°F

39

50

59

68

77

86

95

104

113

122

131

DHC-E 8/10

5.4 kW @ 208 V

0.50

0.58

0.68

0.82

1.02

1.36

2.04

4.09

-

-

-

7.2 kW @ 240 V

0.66

0.78

0.91

1.09

1.36

1.82

2.72

5.45

-

-

-

7.2 kW @ 208 V

0.66

0.78

0.91

1.09

1.36

1.82

2.72

5.45

-

-

-

9.6 kW @ 240 V

0.89

1.04

1.21

1.45

1.82

2.42

3.63

6.61

-

-

-

DHC-E 12

9 kW @ 208 V

0.83

0.97

1.14

1.36

1.70

2.16

3.23

6.47

-

-

-

12 kW @ 240 V

1.11

1.30

1.51

1.82

2.27

2.88

4.31

6.61

-

-

-

q|ļăŷ|Œ¼ļĒşŒù¼ŒŒ¼ăĤ¼ļ|Œşļ¼ĜÔƃ³%

Cold water inlet temperature

°F

39

50

59

68

77

86

95

104

113

122

131

DHC-E 8/10

5.4 kW @ 208 V

0.36

0.41

0.45

0.51

0.58

0.68

0.82

1.02

1.36

2.04

4.09

7.2 kW @ 240 V

0.49

0.54

0.61

0.68

0.78

0.91

1.09

1.36

1.82

2.72

5.45

7.2 kW @ 208 V

0.49

0.54

0.61

0.68

0.78

0.91

1.09

1.36

1.82

2.72

5.45

9.6 kW @ 240 V

0.65

0.73

0.81

0.91

1.04

1.21

1.45

1.82

2.42

3.63

6.61

DHC-E 12

9 kW @ 208 V

0.61

0.68

0.76

0.85

0.97

1.08

1.29

1.62

2.16

3.23

6.47

12 kW @ 240 V

0.81

0.91

1.01

1.14

1.30

1.44

1.73

2.16

2.88

4.31

6.61

Warm water flow rate [ l/min ] 

q|ļăŷ|Œ¼ļĒşŒù¼ŒŒ¼ăĤ¼ļ|Œşļ¼Ôƃ³

Cold water inlet temperature

°C

4

10

15

20

25

30

35

40

45

50

55

DHC-E 8/10

5.4 kW @ 208 V

2.15

2.58

3.09

3.87

5.16

7.73

15.47

-

-

-

-

7.2 kW @ 240 V

2.86

3.44

4.12

5.16

6.87

10.31

20.62

-

-

-

-

7.2 kW @ 208 V

2.86

3.44

4.12

5.16

6.87

10.31

20.62

-

-

-

-

9.6 kW @ 240 V

3.82

4.58

5.50

6.87

9.16

13.75

25.00

-

-

-

-

DHC-E 12

9 kW @ 208 V

3.58

4.30

5.16

6.44

8.59

12.24

24.49

-

-

-

-

12 kW @ 240 V

4.77

5.73

6.87

8.59

11.46

16.32

25.00

-

-

-

-

q|ļăŷ|Œ¼ļĒşŒù¼ŒŒ¼ăĤ¼ļ|Œşļ¼Ôѳ

Cold water inlet temperature

°C

4

10

1

20

25

30

35

40

45

50

55

DHC-E 8/10

5.4 kW @ 208 V

1.89

2.21

2.58

3.09

3.87

5.16

7.73

15.47

-

-

-

7.2 kW @ 240 V

2.51

2.95

3.44

4.12

5.16

6.87

10.31

20.62

-

-

-

7.2 kW @ 208 V

2.51

2.95

3.44

4.12

5.16

6.87

10.31

20.62

-

-

-

9.6 kW @ 240 V

3.35

3.93

4.58

5.50

6.87

9.16

13.75

25.00

-

-

-

DHC-E 12

9 kW @ 208 V

3.14

3.68

4.30

5.16

6.44

8.16

12.24

24.49

-

-

-

12 kW @ 240 V

4.19

4.91

5.73

6.87

8.59

10.88

16.32

25.00

-

-

-

q|ļăŷ|Œ¼ļĒşŒù¼ŒŒ¼ăĤ¼ļ|Œşļ¼ōƃ³

Cold water inlet temperature

°C

4

10

15

20

25

30

35

40

45

50

55

DHC-E 8/10

5.4 kW @ 208 V

1.38

1.55

1.72

1.93

2.21

2.58

3.09

3.87

5.16

7.73

15.47

7.2 kW @ 240 V

1.84

2.06

2.29

2.58

2.95

3.44

4.12

5.16

6.87

10.31

20.62

7.2 kW @ 208 V

1.84

2.06

2.29

2.58

2.95

3.44

4.12

5.16

6.87

10.31

20.62

9.6 kW @ 240 V

2.45

2.75

3.05

3.44

3.93

4.58

5.50

6.87

9.16

13.75

25.00

DHC-E 12

9 kW @ 208 V

2.30

2.58

2.86

3.22

3.68

4.08

4.90

6.12

8.16

12.24

24.49

12 kW @ 240 V

3.07

3.44

3.82

4.30

4.91

5.44

6.53

8.16

10.88

16.32

25.00

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10.4 Data 

table

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Part number

224201

230628

Phase

1

1

1

1

1

1

1

1

1

1

1

1

Voltage

V

208

220

230

240

208

220

230

240

208

220

230

240

Frequency

Hz

50 / 60

50 / 60

50 / 60

50 / 60

50 / 60

50 / 60

50 / 60

50 / 60

50 / 60

50 / 60

50 / 60

50 / 60

Coding plug

 Position

1

1

1

1

2

2

2

2

-

-

-

-

Output power

kW

5.4

6.0 

6.6 

7.2

7.2

 8.1

8.8 

9.6

9

 10

11

12

Ampere

A

28

30 

31 

32

35

37 

39 

40

44

46 

48 

50

Min. required circuit breaker size

A

30

40 

40 

40

50

50 

50 

50

60

60 

60 

60

Rocommended wire size

AWG COPPER

10

- 

-

8

8

-

- 

8

6

-

- 

6

Rocommended wire size

mm² COPPER

-

6

6

-

-

10

10

-

-

10

10

-

Protection level according to

IP 24

IP 24

Min. water flow to activate appliance

GPM / l/min

0.37 / 1.4

0.37 / 1.4

Nominal water volume

GAL / l 

0.13 / 0.5

0.13 / 0.5

Working pressure max.

PSI / bar / MPa 

150 / 10 / 1

150 / 10 / 1

Tested to pressure

PSI / bar / MPa 

300 / 20 / 2

300 / 20 / 2

Weight

lbs. / kg

5.9 / 2.7

5.9 / 2.7

Water connections

 “ NPT

1/2

1/2

f

Suitable for supply with up to 131 °F / 55 °C

f

Tankless water heaters are considered a non-continuous load

f

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11. Spare parts

2

1

13

6

3

5

10

11

15

14

9

8

7

12

2

6

_0

2_0

2_

1

0

9

1

4

CĒĪ CĒĪZĤ|ļ¼Ĥ|ļŒ

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1

Heating system

292575

292576

2

Safety thermal cut out

286369

286369

3

Electronic control appliance

291851

291852

4

Coding plug

283455

---

5

Back panel

292578

292578

6

Flow sensor DFE

286461

286461

7

Cold water connection

291699

291699

8

Filter screen

252430

252430

9

Hot water connection

278634

278634

10

Plastic cover

292577

292577

11

Wiring block

279998

279998

12

Axis connection plug

254312

254312

13

Electronic temperature control

286359

286359

14

Temperature adjustment knob

254307

254307

15

Outlet temperature sensor

280677

280677

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