EWH 80 D SLIM - Boiler TEKA - Free user manual and instructions

USER MANUAL EWH 80 D SLIM TEKA

Sealed Storage Electric Water Heater

EWH 50 D SLIM

EWH 80 D SLIM

Read the Manual before the and installing

We would like to sincerely thank you for selecting our electric water heater. Please read this manual carefully before use and the methods for the installation and use of this electric water heater, to make full use of its excellent performances.

WARNING

• Before installing this water heater, check and confirm the earth electrode on the socket is reliably grounded, without electricity. Otherwise, the electric water heater can not be installed or used.
• Do not use mobile sockets.
• Incorrect installation and use of this electric water heater may result in serious injuries to human bodies and losses of property.

Contents

Performance characteristics.. (1)
- Specifications. (2)
- Brief introduction of product structure. (2)
- Methods of installation. (3)
·Methods of use. (5)
Cautions. (6)
· Maintenance. (8)
- Failures and treatment. (10)
· Wiring diagram. (10)

Performance characteristics

1. Total automatic control: automatic addition of cold water, automatic heating.
2. Three-fold safety protection: multiple safety protection devices, such as dry heating protection, extra-temperature protection, high hydraulic pressure protection, etc., safe and reliable.
3. Sapphire enamel inner container: manufactured by using advanced electrostatic dry method enamel technique, antirust, corrosion-proof, incrustation-resistant, leak-prevention, with longer lifetime.
4. Heating pipes designed with low thermal load: safe and reliable, with longer lifetime.
5. Equipped with corrosion-proof and incrustation-retardant equipment: durable products.
6. Thickened urethane integral foaming: good thermal insulation effect, energy efficient and electricity saving.
7. Imported temperature controller: accurate and reliable control of temperature.
8. Adjustable range of water temperature from 30 to 75^ .
9. Simple operation and easy use.

Specifications

Model	Volume (L)	Rated power (W)	Rated voltage (ACV)	Rated pressure (MPa)	Max of water temperature (°C)	Electric type	Waterproof grade
EWH 50 D SLIM	47	2000	220-240	0.75	75	Type I	IPX4
EWH 80 D SLIM	74	2000	220-240	0.75	75	Type I	IPX4

Brief introduction of product structure

(Fig.1)

		EWH 80 D SLIMEWH 50 D SLIM
A	470	570
B	860	900
C	250	300
D	355	415
E	183	265
F	470	365

Methods of installation

Note: Please make sure to use the accessories provided by our company to install this electric water heater. This electric water heater can not be hung on the support until it has been checked that it is firm and reliable. Otherwise, the electric water heater may face from the wall, resulting in damage of the heater, even serious accidents or injuries to people. When determining the locations of the bolt holes, it shall be ensured that there is a clearance not less than 0.2m on the right side of the electric heater, to facilitate the maintenance of the heater, if necessary.

1. Installation of the main machine

1. This electric water heater should be installed in a solid wall. If the strength of the wall can't bear the weight equalling twice. The total weight of the heater fully filled with water, it will be necessary to install a special support.
2. After selecting a proper location, determine the positions of the two installation holes used for expansion bolts with hook (determined according to the specification of the product you select). Make two holes in the wall with the right depth by drilling the correct size matching the expansion bolts attached, insert the screws, place the hook upwards, tighten the nuts so that they are firmly fixed, and then hang the electric water heater on it (see

Fig.2).
(Fig.2)

1. Install the supply socket in the wall. The requirements for the socket are as follows: 250V/10A, single phase, three electrodes. It is recommended to place the socket on the right above the heater. The height from the socket to the ground shall not be less than 1.8m (see Fig.3).

1. The heater can be installed, anywhere in the house not exposed to direct sunlight or rain. However, in order to reduce the pipeline heat losses, the installation position of the heater shall be closed to the location for use of water as near as possible.

2. Connection of pipelines

1. The dimension of each pipe part is G1/2.
2. Connection of one-way safety valve:install the one-way safety valve attached with the machine at the water inlet of the main machine.(Pay attention to keep the installed drainage flexible pipes of the safety valve sloping downwards and connected with the atmosphere.)
3. In order to avoid leakage when connecting the pipelines, the rubber seal gaskets provided with the machine must be added at the end of the threads (see Fig.4).

1. If the users want to make a multi-way supply system, refer to the method shown in Fig.5 for connection of the pipelines.

(Fig.5)

Methods of use

1. First, open any of the outlet valves at the outlet of the water heater, then, open the inlet valve. The electric water heater begins to be filled with water. When there is water coming out of the outlet valve normally, it implies that the heater has been fully filled with water, and the outlet valve can be closed.

Note: During normal operation, the inlet valve shall be set in the status of "open".

1. Insert the supply plug into the socket, the two indicator lights will be on at the same time..

2. This machine can automatically control the temperature. When the water temperature inside the machine has reached the set temperature (It is set to 75^ ), it will be turned off automatically, and step into the status of thermal insulation; when the water temperature is decreased to a certain point, it will be turned on automatically to restore the heating, and the use of hot water will not be interrupted. When the heater is switched off automatically, the heating indicator will turn off.

3. Operating Of The Unit

① “1” button is for frequency switch. When press firstly, display screen “4” will show the six frequency option (index number “1” means 1200W, index number “2” means 2000W, index number “3” means smart control energy saving mode, index number “4” means energy saving mode, index number “5” means high temperature sterilization mode, index number “H” means the reservation mode.) the six display number will be displayed back and forth.
② "2" is the on/off button, when press, water heater start working, display screen will be lighted up. Then press again, electricity will be cut off, and display screen will be shut down.
③ “3” is for temperature adjustment knob with 360^ loop. Temperature increases by clockwise rotation, and decreases if anticlockwise. During the rotation, desplay screen “4” will change accordingly. When temperature setting meets customers’ requirements, stop rotating and display screen “4” will flash for around 3 seconds, which means temperature has been setted successfully. After flashing, display screen “4” value will return to current inner water heater temperature. After the smart control energy saving mode, the knob can not be adjusted. When entering the appointment mode, the knob can adjust the appointment time.
④ "6" is for frequency display. If number " 1" comes out, it means 1200W(only one tank is heating) ; If number "2" comes out, it means 2000W (the two inner tank has been being heated up);

If number " 3" comes out, it means smart control energy saving mode, the water temperature is automatically changed. The appliance works to reduce the electricity energy of the user consumption, which allows heat loss to be minimized and energy savings to be maximized.

This function is manually activated, The user can press the MODE button three time at 0 AM local time to start the smart control function and calibrate the time and hot water usage;

If number " 4" comes out, it means ECO mode,, the temperature is set to 55C and cannot be adjusted ;

If number " 5" comes out, it means a high temperature sterilization mode, the fixed setting temperature is 80 degrees, and heating starts when the temperature is lower than this temperature. The heating temperature will keep 80 degrees, for 5 minutes, then exit the bacteriostasis and return to the default mode;

If number "6" comes out, it means the reservation mode. Function introduction: when the mode is selected as 6, the digital tube above the display will light up as "6". The system enters the appointment hour setting mode, the digital screen displays the appointment hour time, the setting range is 2-23, the knob adjusts the setting time, and enters the appointment mode after flashing for three seconds, at this time the knob can set the temperature, the appointment is to exit two hours in advance and heat up.

⑤ From "5"&"6", customer could know heating status. The light "5" will turnon when power is connected. The light "6" will flash when smart controlenergy saving mode is started. According the temperature setted, thelight "5" will be shown in red which means water heater is being heated.When inner water heater temperature reaches the setted value, light "5"will be shown in white, which means water heater enter into warm-keepingstatus.
⑥ "4" could show the current inner water temperature as well as settedtemperature value.If no person operates on water heater, the value indisplay screen " 4" means current temperature value .By spinning knob"3", "4" values will vary accordingly ( i.e temperature setting process),when finish temperature setting , "4" values will return back to actual currentinner water heater temperattrue

Cautions

1. The supply socket must be earthed reliably. The rated current of the socket shall not be lower than 10A. The socket and plug shall be kept dry to prevent electric leakage. Inspect frequently whether the plugs are well plugged in the socket. Inspect method is as follows: insert the power supply plug into the socket, after using for half an hour, shut down the unit and pull the plug out, and inspect the plug in case it scalds your hand. If tempeature is over 50^ , please plug in another socket. to avoid the plug being damaged, fire or other personnel accidents result from badcontact.
2. For the places or the wall where the water may splash, the installation height of the socket shall not be lower than 1.8m .

3. The wall in which the electric water heater is installed shall be able to bear the weight equalling twice the weight of the heater fully filled with water without distortion or cracks. Otherwise, other strengthening measures should be adopted.

4. The one-way safety valve attached to the machine must be installed to the cold water inlet of this machine (see Fig.6).

5. For the first use (or the first use after maintenance or cleaning), the heater can not be switched on until it has been (fully) filled with water. When filling with water, at least one of the outlet valves at the outlet of the heater must be opened to release the air. This valve can be closed after the heater has been (fully) filled with water.
6. During the heating, there may be drops of water dripping from the pressure release hole of the one-way safety valve. This is a normal phenomenon. If there is a large amount of water leaking, please contact the professional maintenance personnel for repair. This pressure release hole shall, under no circumstances, be blocked; otherwise, the heater may be damaged, even resulting in safety accidents.

1. The drainage pipe connected to the pressure release hole must be kept sloping downwards.
2. Since the water temperature inside the heater can reach up to 75^ , the hot water must not be exposed to people when it is initially used. Adjust the water to a reasonable tempeature to avoid scalding..
3. In order to drain off the water inside the inner container, it can be drained off from the exit port (Twist the thread screw of the exit port), and it can also be drained off from the one-way safety valve (Twist the thread screw off the one-way safety valve, and lift the drain handle upwards).
4. If the flexible power supply cord is damaged, the special supply cord provided by the manufacturer must be used, and replaced by the professional maintenance personnel.
5. If any parts or components of this electric water heater are damaged, please contact the professional maintenance personnel for repair, and use the special spare parts and components provided by our company.

Maintenance

1. Check the power supply plug and socket frequently to make sure that they have good, reliable contact and are well grounded without overheating.

2. If the heater is not going to be used for a long time, especially in the regions with low temperatures (lower than 0^ ), in order to prevent the heater being damaged due to the freezing of water in the inner container, the water inside the heater shall be drained away (refer to Item 9, Cautions of this manual for the method to drain away the water inside the inner container).

3. The recommended water hardness for an optimum working performance of the water heater should not exceed 120mg / l of CaCo3 (Calcium Carbonate). In case of exceeding this quantity, it is recommended to use alternative decalcifying systems (You can check your local water hardness in the Water Board of you local Town Hall.) Should there be any failures due to the deposits originated by the water quality, will not be covered by the guarantee.

4. To guarantee the long-term durability and efficiency of your water heater, it is recommended to clean its inner tank and the deposits in the heating components on a regular basis.

5. It is also recommended to check the magnesium anode periodically (minimum once a year or every six months depending on the water hardness).

6. If the magnesium anode of your water tank is worn out due to the deposits originated by the water quality, the After Sales Service will have to replace it by a new one. The cost of the materials of the replacement of the magnesium anode will be covered within the guarantee period, however, the cost of the workforce or services for this replacement will not be included.

7. It is recommended to clean the surface of the water heater with soapy water, never use abrasive products or solvents.

8. During the guarantee period, the maintenance will be done by Teka's Official After Sales Service. Any services undertaken by non-Teka Official After Sales services will be excluded from the guarantee.

Types of water	mg/l	°fH	°dH	°eH
Soft water	≤17	≤1.7	≤0.95	≤1.19
Slightly hard water	≤60	≤6.0	≤3.35	≤4.20
Moderately hard water	≤120	≤12.0	≤6.70	≤8.39
Hard water	≤180	≤18.0	≤10.05	≤12.59
Very hard water	>180	>18.0	>10.05	>12.59

Failures and treatment

Failures	Reasons	Treatment
The heating indicator light is off.	Failures of the temperature controller.	Contact with professional staff for repair.
No water coming out of the hot water outlet.	1. The running water supply is cut off. 2. The hydraulic pressure is too low. 3. The inlet valve running water is not open.	1. Wait for restoration of running water supply. 2. Use the heater again when the hydraulic pressure is increased. 3. Open the inlet valve running water.
The water temperature is too high.	Failures of the temperature control system.	Contact with professional staff for repair.
Water leak	Seal problem of the joint of each pipe.	Seal up the joints.

Wiring diagram

The electrical storage water heater EWH 50 D SLIM of the company TEKA was tested with a declared load profile of the size "M"

The product fulfills and corresponds to the requirements of the commission regulation standards (No 814/2013) for electrical storage water heater and achieved a water heating energy efficiency of wh = 41%

that correspond to the water heating efficiency class “B”

In accordance with Annex II Energy Efficiencqasses article 1 of the commission regulation (No 812/2013)

The evaluation of the result of this report with respect to conformity with the related commission regulation (No 812/2013 and 814/2019) is only a part of the conformity assessment to achieve the ErP-Label.

Electricity consumption Qelec, water heating energy efficiency nwh and mixed water at 40^ (V40)

Description Parameter Value Unit
k-Value	k	0.23
Smart control compliance	smart	1
Smart control factor	SCF	21.5	%
Conversion coefficient	CC	2.5
Ambient correction term	Qcor	0.137732
Referencct energy	Qref	5.845	kWh
Useful energy content	QH2O	7.318	kWh
Correction ratio of reference and useful energy	Qef/QH2O	0.799	kWh
Daily electricity consumption (measured)	Qtest_elec	7.143	kWh
Water temperature at the beginning of the 24h measurement cycle	T3	72.0	°C
Water temperature at the end of the 24h measurement cycle	T5	69.9	°C
Storage volume	Mact	47	kg
Storage volume	Cact	47	L
Daily electricity consumption (corrected)	Qelec	8.829	kWh
Sequence of SMART tapping cycles used during the test	M/S/M/S/M
Useful energy content of the hot water drawn-off during smart period Qreference,H2O expressed in kWh:	Qreference,H2O	26.012	kWh
Useful energy content of the hot water drawn-off during smart period Qsmart,H2O expressed in kWh:	Qsmart,H2O	23.898	kWh
The weekly electricity consumption with smart controls	Qelec,week,smart	29.020	kWh
The weekly electricity consumption without smart controls	Qelec,week	36.980	kWh
Water heating energy efficiency	ηwh	41.3	%
Annual Electricity Consumption	AEC	1243	kWh
Water heating energy efficiency class	B
Water temperature without tapping	Tset	63.6	°C
Average water temperature of inlet cold water	θc	11.1	°C
Normalised value of the average temperature	θp	60.6	°C
Calculated volume that delivered hot water of at least 40 C	V40	76	L

The electrical storage water heater EWH 80 D SLIM of the company TEKA was tested with a declared load profile of the size "M"

The product fulfills and corresponds to the requirements of the commission regulation standards (No 814/2013) for electrical storage water heater and achieved a wall heating energy efficiency _wh = 39%

that correspond to the water heating efficiency class

In accordance with Annex II Energy Efficiency Classes article 1 of the commission regulation (No 812/2013)

The evaluation of the result of this report ish respect of conformity with the related commission regulation (No 812/2013 and 814/2019) is only a part of the conformity assessment to achieve the ErP-Label.

Electricity consumption Q_dec water heating energy efficiency _wh and mixed water at 40^ (V40)

Description Parameter Value Unit
k-Value	k	0.23
Smart control compliance	smart	1
Smart control factor	SCF	38.1	%
Conversion coefficient	CC	2.5
Ambient correction term	Qcor	-0.10732
Referencct energy	Qref	5.845	kWh
Useful energy content	QH2O	8.5238	kWh
Correction ratio of reference and useful energy	QeffQH2O	0.686	kWh
Daily electricity consumption (measured)	Qtest_elec	14.177	kWh
Water temperature at the beginning of the 24h measurement cycle	T3	71.0	°C
Water temperature at the end of the 24h measurement cycle	T5	70.6	°C
Storage volume	Mact	74	kg
Storage volume	Cact	74	L
Daily electricity consumption (corrected)	Qelec	9.745	kWh
Sequence of SMART tapping cycles used during the test	M/S/M/S/M
Useful energy content of the hot water drawn-off during smart period Qreference,H2O expressed in kWh:	Qreference,H2O	32.610	kWh
Useful energy content of the hot water drawn-off during smart period Qsmart,H2O expressed in kWh:	Qsmart,H2O	27.109	kWh
The weekly electricity consumption with smart controls	Qelec,week,smart	35.020	kWh
The weekly electricity consumption without smart controls	Qelec,week	56.580	kWh
Water heating energy efficiency	ηwh	39	%
Annual Electricity Consumption	AEC	1316	kWh
Water heating energy efficiency class	B
Water temperature without tapping	Tset	64.7	°C
Average water temperature of inlet cold water	θc	10.6	°C
Normalised value of the average temperature	θp	59	°C
Calculated volume that delivered hot water of at least 40 C	V40	108	L

DESCRIPTION TO ANNEX I

(1)supplier's name or trade mark
(2) supplier's model identifier
(3) the declared load profile, expressed by the appropriate letter and typical usage in accordance with Table 3 of Annex VII
(4) the water heating energy efficiency class of the model, determined in accordance with point 1 of Annex II
(5) the water heating energy efficiency in % , rounded to the nearest integer
(6) the annual electricity consumption in KWh in terms of final energy and/or the annual fuel consumption in GJ in terms of GCV, rounded to the nearest integer and calculated in accordance with point 4 of Annex VIII
(7) the thermostat temperature settings of the water heater, as placed on the market
(8) the daily electricity consumption Q elec in KWh, rounded to three decimal places
(9) the declared load profile, expressed by the appropriate letter in accordance with Table 1 of this Annex
(10) the mixed water at 40^ V40 in litres, rounded to the nearest integer
(11) maximum temperature of the thermostat
(12) 'out of the box-mode' is the standard operating condition, setting or mode set by the manufacturer at factory level, to be active immediately after the appliance installation, suitable for normal use by the end-user according to the water tapping pattern for which the product has been designed and placed on the market
(13) the water heating energy efficiency in % , rounded to one decimal place
(14) All specific precautions for assembly, installation and maintenance are described in the operating and installation instructions. Read and follow the operating and installation instructions.
(15) All of the data that is included in the product information was determined by applying the specifications of the relevant European directives. Differences to product information listed elsewhere may result in different test conditions. Only the data that is contained in this product information is applicable and valid.

TEKA

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