OHTC80 - Heating Otsein-Hoover - Free user manual and instructions

Type of Product	Electric storage water heater
Model	OHTC80
Brand	Otsein-Hoover
Storage Volume	80 L
Rated Voltage	220-240 V ~ 50 Hz
Rated Pressure	0.75 MPa
Max Water Temperature	75 °C
Protection Class	Class I
Waterproof Class	IPX4
Energy Efficiency Class	C
Annual Electricity Consumption	1424 kWh
Daily Electricity Consumption	6.673 kWh
Mixed Water at 40 °C (V40)	91 L
Dimensions (Diameter x Height)	450 mm x 809 mm
Installation Type	Wall-mounted (horizontal or vertical)
Inlet/Outlet Connection	G 1/2" female thread
Safety Valve	Pressure relief valve included (to be installed at cold water inlet)
Heating Element	Electric heating element with thermostat and thermal cut-out
Anode Rod	Magnesium anode rod for corrosion protection (requires periodic inspection and replacement)
Maintenance	Drain water if not used in freezing conditions; clean tank and heating element regularly; replace magnesium anode when depleted

Frequently Asked Questions - OHTC80 Otsein-Hoover

What is the rated power of the OHTC80 water heater?

The rated power is not explicitly stated in the manual, but based on the rated current requirement of 10A at 220-240V, the maximum power is approximately 2200-2400W. For exact details, refer to the product label.

What are the dimensions of the OHTC80?

The overall dimensions are approximately 450 mm in diameter and 809 mm in height. Exact dimensions may vary; refer to the dimensional drawing in the manual.

Does the OHTC80 require a special electrical outlet?

Yes, it requires a single-phase earthed socket rated at 250V/10A. The socket should be installed at least 1.8m above the ground and kept dry.

How do I install the pressure relief valve?

The pressure relief valve must be installed at the cold water inlet of the heater. Ensure it is not exposed to fog, and the drain pipe slopes downwards. The valve should be checked and cleaned regularly.

How do I fill the water heater for the first time?

Open at least one hot water outlet valve, then open the cold water inlet valve. When water flows steadily from the outlet, the tank is full. Close the outlet valve and then turn on the power.

What does the heating indicator light mean?

When the heater is plugged in and power is on, both indicator lights will illuminate. The thermostat automatically controls the temperature; the light may go off when set temperature is reached.

How do I drain the water heater for maintenance or freezing prevention?

Cut off power first. Unscrew the thread screw on the multifunction safety valve, then lift the drain handle upwards to drain water from the inner tank. Ensure the outlet pipe is directed to a drain.

What should I do if water leaks from the pressure release hole?

A few drops during heating is normal. If there is a large leak, contact customer service for repair. Never block the pressure release hole.

How often should the magnesium anode be replaced?

The magnesium anode should be inspected regularly (e.g., annually) and replaced when fully decomposed. Frequency depends on water hardness; consult a service center.

Can I install the water heater myself?

No, installation and maintenance must be carried out by qualified professionals or authorized technicians to ensure safety and warranty validity.

USER MANUAL OHTC80 Otsein-Hoover

Line drawing of a rectangular industrial vessel with a central control knob and base (no text or symbols)

The diagram above is just for reference. Please take the appearance of the actual product as the standard.

General Remark

• The installation and maintenance has to be carried out by qualified professionals or authorized technicians.
• The manufacturer shall not be held responsible for any damage or malfunction caused by wrong installation or failing to comply with following instructions included in this pamphlet.
• For more detailed installation and maintenance guidelines, please refer to below chapters.

TABLE OF CONTENTS

TITLE PAGE

1.CAUTIONS....(2)
2.PRODUCT INTRODUCTION ......(3)
3. UNIT INSTALLATION ....(5)
4.METHODS OF USING....(7)
5.MAINTENANCE ....(7)
6.TROUBLESHOOTING....(8)
7.PRODUCE INFORMATION WITH EU REGULATION .....(9)
8.DESCRIPTION TO ANNEX I....(13)

1. CAUTIONS

Before installing this water heater, check and confirm that the earthing on the supply socket is reliably grounded. Otherwise, the electrical water heater can not be installed and used. Do not use extension boards. Incorrect installation and use of this electrical water heater may result in serious injuries and loss of property.

Special Cautions

• 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 electrical leakage. Inspect frequently whether the plugs contact well with the socket. Inspect method is as follows: insert the power supply plug into socket, after using for half an hour, shut down the unit and pull the plug out, and inspect the plug whether it scalds hand. If it scalds (over 50°C), please change another well-contacted socket to avoid the plug being damaged, fire or other personnel accidents result from bad-contacting.
• The installation height of the supply socket shall not be lower than 1.8m.
• The wall in which the electrical water heater is installed shall be able to bear the load more than two times of the heater filled fully with water without distortion and cracks. Otherwise, other strengthening measures shall be adopted.
• The pressure relief valve attached with the heater must be installed at the cold water inlet of this heater(see Fig.1), and make sure it is not exposed in the foggy. The water may be outflowed from pressure relief valve, so the outflow pipe must open wide in the air; The pressure relief valve need to be checked and cleaned regularly, so as to make sure it will not be blocked.

(Fig.1)

- When using the heater for the first time(or the first use after maintenance), the heater can not be switched on until it has been filled fully with water. When filling the water, at least one of the outlet valves at the outlet of the heater must be opened to exhaust the air. This valve can be closed after the heater has been filled fully with water.

- The water heater is not intended for use by persons(including children)with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instructions concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the heater.

- During heating, there may be drops of water dripping from the pressure release hole of the multifunction valves. This is a normal phenomenon. If there is a large amount of water leak, please contact customer care center for repair. This pressure release hole shall, under no circumstances, be blocked; otherwise, the heater may be damaged, even resulting in accidents.

- The drainage pipe connected to the pressure release hole must be kept sloping downwards.

- Since the water temperature inside the heater can reach up to 75 C, the hot water must not be exposed to human bodies when it is initially used. Adjust the water temperature to a suitable temperature to avoid scalding.

- Unscrew the thread screw on the multifunction safety valve, and lift the drain handle upwards. (See Fig.1) to drain the water from the inner tank.

- If the flexible power supply cord is damaged, the special supply cord provided by the manufacturer must be selected, and replaced by the professional maintenance personnel.

- If any parts and components of this electrical water heater are damaged please contact customer care center for repair.

- This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.

- Children should be supervised to ensure that they do not play with the appliance.

2. PRODUCT INTRODUCTION

2.1 Technical Performance Parameters

Model	Volume (L)	Rated Power (W)	Rated Voltage (ACV)	Rated Pressure (MPa)	Max Of Water Temperature (°C)	Protection Class	Water Proof Class
OHTC30						I	IPX4750.75220-24
OHTC50						I	IPX4750.75220-24
OHTC80						I	IPX4750.75220-24
OHTC100						I	IPX4750.75220-24

2.2 Brief introduction of product structure

	OHTC30	OHTC50	OHTC80	OHTC100
A	340	385	450	450
B	594	760	809	974
C	100	100	100	100
D	200	200	200	200

(Note: All dimensions are in mm)

2.3 Internal Wire Diagram

WIRING DIAGRAM

3. UNIT INSTALLATION

3.1 Installation Instruction

① This electrical water heater shall be installed on a solid wall. If the strength of the wall cannot bear the load equal to two times of the total weight of the heater filled fully with water, it is then necessary to install a special support.

Incase of hollow bricks wall, ensure to fill it with cement concrete completely.

② After selecting a proper location, determine the positions of the two install 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 corresponding depth by using a chopping bit with the size matching the expansion bolts attached with the machine, insert the screws, make the hook upwards, tighten the nuts to fix firmly, and then hang the electric water heater on it (see Fig.2).

Technical diagram showing a mechanical assembly with hatched background and circular component (no text or symbols)

Diagram of a mechanical component with hatched fill and a curved arrow, no text or symbols present

Expansion bolt (with hook)
(Fig.2)

③ 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 placed the socket on the right above the heater. The height of the socket to the ground shall not be less than 1.8m (see Fig.3). If there is fault on power cable, it should be replaced by the manufacturers, agencies or qualified person who is able to do this so as to ensure the safety.

(Fig.3)

④ If the bathroom is too small, the heater can be installed at another place without sun-scorched and rain-drenched. However, in order to reduce the pipeline heat losses, the installation position of the heater shall be closed to the location shall be as near as possible to the heater.

3.2 Pipelines Connection

① The dimension of each pipe part is G1/2"; The massive pressure of inlet should use Pa as the unit; The minimum pressure of inlet should use Pa as the unit.

② Connection of pressure relief valve with the heater on the inlet of the water heater.

③ In order to avoid leakage when connecting the pipelines, the rubber seal gaskets provided with the heater must be added at the end of the threads to ensure leak proof joints (see Fig.4).

④ If the users want to realize a multi-way supply system, refer to the method shown in fig.5 for connection of the pipelines.

NOTE

Please be 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 confirmed to be firm and reliable. Otherwise, the electric water heater may drop off from the wall, resulting in damage of the heater, even serious accidents of injury. 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 convenient the maintenance of the heater, if necessary.

4. METHODS OF USING

- First, open any one of the outlet valves at the outlet of the water heater, then, open the inlet valve. The water heater gets filled with water. When water flows out of the outlet pipe it implies that the heater has been filled fully with water, and the outlet valve can be closed.

NOTE

During normal operation, the inlet valve shall be always kept open.

• Insert the supply plug into the supply socket, the two indicator lights will light up this time.
• The thermostat will automatically control the temperature. When the water temperature inside the heater has reached the set temperature, it will switch off automatically, when the water temperature falls below the set point the heater will be turned on automatically to restore the heating.

5. MAINTENANCE

WARNING

Do cut off power supply before maintenance, to avoid danger like electric shock.

• Check the power plug and outlet as often as possible. Secure electrical contact and also proper grounding must be provided. The plug and outlet must not heat excessively.
• If the heater is not used for a long time, especially in regions with low air temperature(below 0 °C), it is necessary to drain water from the heater to prevent damage of the water heater, due to water freezing in the internal tank.(Refer Cautions in this manual for the method to drain away the water from the inner container).
• To ensure long reliable water heater operation, it is recommended to regularly clean the internal tank and remove deposits on the electric heating element of the water heater, as well as check condition (fully decomposed or not) of the magnesium anode and, if necessary, replace it with a new one in case of full decomposition. Tank cleaning frequency depends on hardness of water located in this territory. Cleaning must be performed by special maintenance services. You can ask the seller for address of the nearest service center.

6. TROUBLESHOOTING

Failures Reasons Treatment
The heating indicator light is off.	Failures of the temperature controller.	Contact with the professional personnel 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 of 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 of running water.
The water temperature is too high.	Failures of the temperature control system.	Contact with the professional personnel for repair.
Water leak.	Seal problem of the joint of each pipe.	Seal up the joints.

NOTE

Parts illustrated in this use and care manual are indicative only, parts provided with the product may differ with illustrations. This product is intended for household use only. Specifications are subject to change without notice.

7. PRODUCE INFORMATION WITH EU REGULATION

The electrical storage water heater OHTC30 of the company Candy Hoover Group srl was tested with a declared load profile of the sizes"

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

$$ \eta_ {\mathrm{wh}} = 32 \% $$

that correspond to the water heating efficiency class

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

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

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

Description Parameter Value Unit
k-Value	k	0.23
Smart control compliance	smart	0
Smart control factor	SCF	0
Conversion coefficient	CC	2.5
Ambient correction term Q	ccr	-0.391	kWh
Referenct energy	Q_ref	2.1	kWh
Useful energy content	Q_H2O	2.137	kWh
Correction ratio of reference and useful energy	Q_ref/Q_H2O	0.983	kWh
Daily electricity consumption (measured)	Q_test\_elec	3.003	kWh
Water temperature at the beginning of the 24h measurement cycle	T3	63.3	°C
Water temperature at the end of the 24h measurement cycle	T5	68.3	°C
Storage volume	M_act	30.1	kg
Storage volume	C_act	30.1	L
Daily electricity consumption (corrected)	Q_elec	2.779	kWh
Water heating energy efficiency	n_wh	32.0
Annual Electricity Consumption	AEC	576	kWh
Water heating energy efficiency class		C
Water temperature without tapping	T_set	63	°C
Average water temperature of outlet warm water	θ_p	62.6	°C
Average water temperature of inlet cold water	θ_c	10.4	°C
Normalised value of the average temperature	θ_p	62.6	°C
Volume that delivered water of at least 40°C	V_40exp	25	L
Calculated volume that delivered hot water of at least 40°C	V_40	44	L

The electrical storage water heater OHTC50 of the company Candy Hoover Group srl was tested with a declared load profile of the sizeM"

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

$$ \eta_ {\mathrm{wh}} = 36 \% $$

that correspond to the water heating efficiency class"

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

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

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

Description Parameter Value Unit
k-Value	k	0.23
Smart control compliance	smart	0
Smart control factor	SCF	0
Conversion coefficient	CC	2.5
Ambient correction term Q	ccr	-0.480	kWh
Referenct energy	Q_ref	5.845	kWh
Useful energy content	Q_H2O	5.945	kWh
Correction ratio of reference and useful energy	Q_ref/Q_H2O	0.983	kWh
Daily electricity consumption (measured)	Q_test\_elec	6.963	kWh
Water temperature at the beginning of the 24h measurement cycle	T3	63	°C
Water temperature at the end of the 24h measurement cycle	T5	65.9	°C
Storage volume	M_act	50.1	kg
Storage volume	C_act	50.1	L
Daily electricity consumption (corrected)	Q_elec	6.680	kWh
Water heating energy efficiency	n_wh	36.0
Annual Electricity Consumption	AEC	1425	kWh
Water heating energy efficiency class		C
Water temperature without tapping	T_set	63	°C
Average water temperature of outlet warm water	θ_p	62.3	°C
Average water temperature of inlet cold water	θ_c	10.5	°C
Normalised value of the average temperature	θ_p	62.3	°C
Volume that delivered water of at least 40°C	V_40exp	40	L
Calculated volume that delivered hot water of at least 40°C	V_40	69	L

The electrical storage water heater OHTC80 of the company Candy Hoover Group srl was tested with a declared load profile of the sizeM"

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

$$ \eta_ {\mathrm{wh}} = 36 \% $$

that correspond to the water heating efficiency class"

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

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

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

Description Parameter Value Unit
k-Value	k	0.23
Smart control compliance	smart	0
Smart control factor	SCF	0
Conversion coefficient	CC	2.5
Ambient correction term Q	ccr	-0.476	kWh
Referenct energy	Q_ref	5.845	kWh
Useful energy content	Q_H2O	5.949	kWh
Correction ratio of reference and useful energy	Q_ref/Q_H2O	0.983	kWh
Daily electricity consumption (measured)	Q_test\_elec	7.986	kWh
Water temperature at the beginning of the 24h measurement cycle	T3	63.3	°C
Water temperature at the end of the 24h measurement cycle	T5	76.1	°C
Storage volume	M_act	80.2	kg
Storage volume	C_act	80.2	L
Daily electricity consumption (corrected)	Q_elec	6.673	kWh
Water heating energy efficiency	n_wh	36.1
Annual Electricity Consumption	AEC	1424	kWh
Water heating energy efficiency class		C
Water temperature without tapping	T_set	63	°C
Average water temperature of outlet warm water	θ_p	62.4	°C
Average water temperature of inlet cold water	θ_c	10.4	°C
Normalised value of the average temperature	θ_p	62.4	°C
Volume that delivered water of at least 40°C	V_40exp	52	L
Calculated volume that delivered hot water of at least 40°C	V_40	91	L

The electrical storage water heater OHTC100 of the company Candy Hoover Group srl was tested with a declared load profile of the sizeM”

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

$$ \eta_ {\mathrm{wh}} = 36 \% $$

that correspond to the water heating efficiency class"

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

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

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

Description Parameter Value Unit
k-Value	k	0.23
Smart control compliance	smart	0
Smart control factor	SCF	0
Conversion coefficient	CC	2.5
Ambient correction term Q	ccr	-0.456	kWh
Referenct energy	Q_ref	5.845	kWh
Useful energy content	Q_H2O	5.952	kWh
Correction ratio of reference and useful energy	Q_ref/Q_H2O	0.982	kWh
Daily electricity consumption (measured)	Q_test\_elec	8.972	kWh
Water temperature at the beginning of the 24h measurement cycle	T3	46.1	°C
Water temperature at the end of the 24h measurement cycle	T5	64.9	°C
Storage volume	M_act	101.2	kg
Storage volume	C_act	101.2	L
Daily electricity consumption (corrected)	Q_elec	6.638	kWh
Water heating energy efficiency	n_wh	36.2
Annual Electricity Consumption	AEC	1418	kWh
Water heating energy efficiency class		C
Water temperature without tapping	T_set	46	°C
Average water temperature of outlet warm water	θ_p	45.4	°C
Average water temperature of inlet cold water	θ_c	10.3	°C
Normalised value of the average temperature	θ_p	45.4	°C
Volume that delivered water of at least 40°C	V_40exp	74	L
Calculated volume that delivered hot water of at least 40°C	V_40	87	L

8. DESCRIPTION TO ANNEX I

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^ C 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.

The product is subject to change without notice. Please keep this manual properly.

Otsein

MANUAL DE OPERACIÓN

TERMO ELÉCTRICO

Modelo: OHTC30

OHTC50

OHTC80

OHTC100

Line drawing of a rectangular industrial vessel with a pressure gauge and base (no text or symbols)

Technical diagram of a mechanical assembly with hatched background and internal circular component (no text or symbols)

Diagram of a mechanical component with hatched fill and labeled point (c), no readable text or symbols present.

(Figura 3)

Line drawing of a rectangular industrial vessel with a pressure gauge and base (no text or symbols)

(Fig.1)

② After selecting a proper location, determine the positions of the two install 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 corresponding depth by using a chopping bit with the size matching the expansion bolts attached with the machine, insert the screws, make the hook upwards, tighten the nuts to fix firmly, and then hang the electric water heater on it (see Fig.2).

Technical diagram of a mechanical assembly with hatched background and internal circular component (no text or symbols)

Diagram of a mechanical component with hatched fill and labeled point (c), no readable text or symbols present.

- The thermostat will automatically control the temperature. When the water temperature inside the heater has reached the set temperature, it will switch off automatically, when the water temperature falls below the set point the heater will be turned on automatically to restore the heating.

5. MANUTENÇÃO

ALERTA