HITACHI HES-60HM (01) PDF DOCUMENT

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The following are critical safety warnings and cautions for the HITACHI HES-60HM:

Warnings:

The Multipoint Electric Water Heater unit must be earthed. Improper grounding could cause electric shock.

Do not install, remove, and reinstall the unit by yourself. Improper installation will cause leakage, electric shock, or fire. Please engage an authorized dealer or specialist for the installation work.

After setting the Multipoint Electric Water Heater unit, it must be sealed by Plaseal to protect water from the outside into the unit. If not sealed, water may get into the unit, which may cause electric shock, short circuit, or fire hazards.

Do not share the inlet pipe of the Multipoint Electric Water Heater unit with other outlets. The pressure may drop due to water being drawn off at another point, and the shower water temperature may become too hot.

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 the 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.

Cautions:

Do not insert a finger or other objects into the Multipoint Electric Water Heater units.

Do not spray water on the body or put wet towels on it.

Do not block the Shower Head with your hand or a towel.

Do not bend the Shower Hose.

Do not fix the RESET ELCB lever forcibly with tape. If the RESET ELCB Lever cannot be pushed up, do not forcibly set the lever.

When the Multipoint Electric Water Heater is used by a child, old person, sick person, or physically handicapped person, the concerned person is kindly requested to pay attention and check the shower temperature by hand from time to time.

Switch off the Power Supply before checking the unit.

Be careful of the shower temperature when reducing the water volume. The water temperature will become very hot if the water flow rate is too low.

Before installing, please note the following warnings:

The unit must always be grounded.

The water filter unit should be installed before water flows into the shower unit.

Do not install a water gate or any valve at the outlet water hose.

Water Pressure:

Please check to make sure that there is sufficient water pressure.

Minimum water pressure: 27 kPa / 0.27 bar

Maximum water pressure: 600 kPa / 6 bar

To measure the water pressure, water must be able to flow out of the unit at least 2.7 meters high.

Electrical Requirements:

The electric wire has to join permanently together with the main line according to the table below.

1. Where to install:

The unit must be installed on the wall as pictured in the manual.

2. Opening the cover out of the unit base:

Pull out the temperature control knob.

Remove the screw at the bottom of the unit.

Pull out the cover from the bottom first and release the side locks at the top.

3. Install on concrete, brick, or ceramic wall:

Drill holes on the wall.

Insert the plug into the holes.

Tighten two screws in the top plug leaving about 3 to 4 mm of space. Next, hang the heater unit on the screws and move to tighten the 4 screws. Seal the holes with plaseal.

After installation of the heater unit, proceed to install the Filter Unit to the unit at the water inlet tube.

Water Hose Installation:

Use proper tools for the installation. Never tighten the plastic nuts until they break.

Tighten the plastic nuts to prevent water leakage.

Warning: Do not forget to put in the rubber rings on the water inlet and the water outlet hose. Do not use any tape at the inlet and outlet water tubes. Do not adjust or modify the safety valve by yourself.

Connection of the Wires:

Before working on any electrical part, turn off the circuit breaker first.

Use 6 sq. mm. wire for wiring.

Connect the wire directly from the switch-board of the house and install a circuit breaker outside the bathroom.

The Multipoint Electric Water Heater must be installed permanently together with the electric line, joined with a 2-electrode circuit breaker with a separation of at least 3 mm. The breaker must be easily visible outside of the bathroom.

Connect the wiring:

1. Punch a hole at the rubber ring on the unit base. Then insert the electric cable from the back.

2. Strip the cable and connect to the earth leakage circuit breaker (ELCB). Connect the line to the terminal L and the NEUTRAL to the N and secure it tightly with screws.

3. Connect the stripped ground wire to the ground terminal of the heater base.

Important: You must connect the wires to the correct terminals (L and N). Wrong connection of the terminals can cause abnormality in the circuit, which may damage the unit or cause a short circuit.

Install the Ground Rod:

1. Choose a humid area to put the copper electrode. The minimum length of the copper electrode is 90 cm.

2. The ground rod must be put under the ground at a minimum of 70 cm away from the ground surface.

3. Make sure that the resistance of the ground must not exceed 100 ohms.

4. If the resistance exceeds 100 ohms, it may be necessary to put two or three electrodes for grounding.

1. Open the water valve from the main valve (No. 2); water will flow out of the shower head. Check to see if water leaks from the tubes.

2. Before opening the circuit breaker (No. 1), please check the wire connections.

– Push the circuit breaker (No. 1) to the “ON” position.

– Push the ELCB lever (No. 6) to the upper side to set the ELCB to work.

– Press the button of the ELCB checker (No. 5).

– If the lever of the ELCB checker (No. 6) comes down, it shows that the shower heater works normally.

– Push the lever of the ELCB checker (No. 6) to the upper side (The machine is ready to work).

3. Turn on the temperature control button (No. 4) to the desired temperature. The white temperature control light shall go on.

1. Switch “ON” the circuit breaker (No. 1).

2. Push up the reset ELCB lever (No. 6) if it is down.

3. Turn on the main water valve (No. 2).

4. While pressing the PUSH ON/OFF Switch (No. 3), the ELCB indicator will light up.

5. Turn on the temperature control button (No. 4) to the desired temperature. The temperature control light shall go on.

How to adjust the water temperature:

Turn the temperature control (No. 4) to the desired level. The POWER control (White light) lights and the temperature will be set to constant.

If turning the temperature control to OFF, the signal light goes off. At this time the unit has no power, therefore, the water is not heated.

Turn off the inlet by closing the valve, then the POWER indicator light will go off.

Important Issues:

If you use other water taps while using the water heater, the water flow will drop, and the water temperature will increase. This is not a malfunction. Please adjust the water temperature by the water valve.

In case of lightning/thunder, please close the circuit breaker to protect the unit from damage.

If the reset ELCB lever cannot return, even after pressing it up, or if it moves down during operation, please inform the dealer. Do not stick the lever with tape by yourself.

Please take special care for children, old people, patients, and physically handicapped persons. If they use it, the person close to them should check the water temperature.

1. Check the operation of the ELCB once a month:

Press the ELCB testing button. The Reset ELCB lever should fall down. If not, please inform the dealer for checking.

Push up the reset ELCB lever to set the “ELCB” operation again. Make sure that you have cut out the circuit breaker first.

2. Filter cleaning:

Clean the filter with water every month.

Clean the filter unit when the hot water doesn’t flow as usual.

The filter set can be taken out easily by turning the reverse button after the inlet is closed.

3. Body Cleaning:

Ensure that the reset ELCB lever has fallen down before cleaning.

To clean the body of the shower heater, use a cloth dipped in soapy water and twisted dryly.

Do not use benzene, thinner, or similar products for cleaning.

If you find the following errors occur during operation, please contact the dealer immediately. Repairing must be done by a specialized technician. Do not open the cabinet and try repairing it yourself.

1. Water is leaking.

2. The water doesn’t flow well.

3. Can’t control hot water temperature.

4. The signal light doesn’t work.