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Safety Precautions - Mitsubishi Electric ECODAN EHST20 Series Operation Manual

Cylinder unit and hydrobox
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Safety Precautions

► Before operating this unit it is important to read the safety precautions.
► The following safety points are provided to prevent injury to yourself and damage to the unit please adhere to them.
Used in this manual
Precautions listed under this title should be observed to prevent
injury or death to the user.
Follow the instructions provided in this manual and local regulations when using this unit.
• The unit should NOT be installed or serviced by the user. If installed incorrectly water leakage, electric shock and fire may result.
• NEVER block discharges from emergency valves.
• Do not operate the unit without emergency valves and thermostatic cut-outs being operational. If in doubt contact your installer.
• Do not stand on or lean on unit.
• Do not place objects on top or below the unit and observe service space requirements when placing objects next to the unit.
• Do not touch the unit or controller with wet hands as electric shock may result.
• Do not remove the panels of the unit or try to force objects inside the unit's casing.
• Do not touch protruding pipework as it may be very hot and cause burns to the body.
• Should the unit start vibrating or making abnormal noises stop operation, isolate from the power supply and contact the installer.
• Should the unit start to produce any burning smells stop operation, isolate from the power supply and contact the installer.
• Should water be visibly being discharged through the tundish stop operation, isolate from the power supply and contact the installer.
• 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.
• In the case of a refrigeration leak, stop the operation of the unit, thoroughly ventilate the room and contact the installer.
• If power supply cable is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.
• Do not place containers with liquids on top of the unit. If they leak or spill the unit may be damaged and fire could occur.
• When installing, relocating, or servicing the cylinder unit and the hydrobox, use only the specified refrigerant (R410A) to charge the refrigerant lines. Do
not mix it with any other refrigerant and do not allow air to remain in the lines. If air is mixed with the refrigerant, then it can be the cause of abnormal
high pressure in the refrigerant line, and may result in an explosion and other hazards.
The use of any refrigerant other than that specified for the system will cause mechanical failure or system malfunction or unit breakdown. In the worst
case, this could lead to a serious impediment to securing product safety.
• In heating mode, to avoid the heat emitters being damaged by excessively hot water, set the target flow temperature to a minimum of 2ºC below the
maximum allowable temperature of all the heat emitters. For Zone2, set the target flow temperature to a minimum of 5ºC below the maximum allowable
flow temperature of all the heat emitters in Zone2 circuit.
• This appliance is primarily intended for domestic use. For commercial applications this appliance is intended to be used by expert or trained users in
shops, in light industry and on farms, or for commercial use by lay persons.
• Do not use sharp objects to press the buttons of the main remote controller as this will cause damage to the buttons.
• If power to unit is to be turned off for a long time, the water should be drained.
• Do not place a container etc. filled with water on the top panel.
Disposal of the Unit
Note: This symbol mark is for EU countries only.
This symbol mark is according to the directive 2012/19/EU
Article 14 Information for users and Annex IX, and/or to the
directive 2006/66/EC Article 20 Information for end-users and
Annex ii.
Your Mitsubishi Electric heating system products have been man-
ufactured with high quality materials and components which can
be recycled and/or reused. The symbol in Figure 1.1 means that
<Figure 1.1>
electrical and electronic equipment, batteries and accumulators
at the end of their life, should be disposed of separately from your
household waste.
If a chemical symbol is printed beneath the symbol (Figure 1.1),
this chemical symbol means that the battery or accumulator con-
tains a heavy metal at a certain concentration. This is indicated as
Hg: mercury (0.0005%), Cd: cadmium (0.002%), Pb: lead (0.004%)
Precautions listed under this title should be observed to prevent
damage to the unit.
In the European Union there are separate collection systems for used electrical
and electronic products, batteries and accumulators.
Please dispose of this equipment, batteries and accumulators correctly at your lo-
cal community waste collection/recycling centre.
Contact your local Mitsubishi Electric dealer for country-specific details on
Please, help us to conserve the environment we live in.

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