intensity , MDV-D18Q4/VN1-E Installation And Operation Manual Download

Page: 16 / 23

All

toggle

switches (including the capacity toggle switch) have

been configured before delivery. Only a professional

maintenance personnel should change these settings.

Improper

toggle

switch settings may cause condensation, noise,

or unexpected system malfunction.

Caution

Once the installation is completed, please keep the manual properly for future
reference. When this air conditioner is handed over to other users, make sure
that the manual is included with the handover.

Warning

• Do not use this unit in locations where flammable gas may exist. If flamma-

ble gas comes into contact with the unit, a fire may occur, which could result
in serious injury or death.

• If this unit exhibits any abnormal behavior (such as emitting smoke) there is

a danger of serious injury. Disconnect the power supply and contact your
supplier or service engineer immediately.

•

The refrigerant in this unit is safe and should not leak if the system is desi-

gned and installed properly. However, if a large amount of refrigerant leaks
into a room, the oxygen concentration will decrease rapidly, which can cause
  serious injury or death. The refrigerant used in this unit is heavier than
air,so  the  danger  is  greater  in  basements  or  other  underground spaces.
  In the event of a refrigerant leak, turn off any devices that produce a  naked
  flame  and  any  heating  devices,  ventilate  the  room,  and  contact your sup-

plier or service engineer immediately.

• Toxic fumes may be produced if the refrigerant in this unit comes into

contact with naked flames (such as from a heater, gas stove/burners, or
electric appliances).

• If this unit is used in the same room as a cooker, stove, hob, or burner,

ventilation for sufficient fresh air must be ensured, otherwise the oxygen
concentration will fall, which may cause injury.

• Dispose of this unit’s packaging carefully, so children cannot play with it.

Packaging, especially plastic packaging, can be dangerous, can cause
serious injury or death. Screws, staples and other metal packaging compo-
nents can be sharp and should be disposed of carefully to avoid injury.

• Do not attempt to inspect or repair this unit yourself. This unit should only be

serviced and maintained by a professional air conditioning service
engineer. Incorrect servicing or maintenance can cause electric shocks, fire
or water leaks.

• This unit should only be re-positioned or re-installed by a professional

technician. Incorrect installation can lead to electric shocks, fire or water
leaks. The installation and grounding of electrical appliances should only be
carried out by licensed professionals. Ask your supplier or installation
engineer for further information.

• Do not allow this unit or its remote controller to come into contact with water,

as this can lead to electric shocks or fire.

• Turn off the unit before cleaning it to avoid electric shocks. Otherwise, an

electric shock and injury may result.

• To avoid electric shocks and fires, install an earth leakage detector.
• Do not use paint, varnish, hair spray, other flammable sprays or other

liquids that may give off flammable fumes/vapor near this unit, as doing so
can cause fires.

• When replacing a fuse, ensure that the new fuse to be installed completely

complies with requirements.

• Do not open or remove the unit's panel when the unit is powered on.

Touching the unit's internal components while the unit is powered on can lead
to electric shocks or injuries caused by moving parts such as the unit's fan.

• Ensure that the power supply is disconnected before any servicing or

maintenance is carried out.

• Do not touch the unit or its remote controller with wet hands, as doing so

can lead to electric shocks.

• Do not allow children to play near this unit, as doing so risks injury.
• Do not insert your fingers or other objects into the unit’s air inlet or air outlet

to avoid injury or damage to the equipment.

• Do not spray any liquids onto the unit or allow any liquids to drip onto the unit.
• Do not place vases or other liquid containers on the unit or in places where

liquid could drip onto it. Water or other liquids that come into contact with the
unit can lead to electric shocks or fires.

• Do not remove the remote controller’s front or back overs and do not touch the

remote controller’s internal components, as doing so can cause injury. If the
remote controller stops working, contact your supplier or service engineer.

• Ensure that the unit is properly grounded, otherwise electric shocks or a fire

may result. Electrical surges (such as those that can be caused by lightning)
can damage electrical equipment. Ensure that suitable surge protectors and
circuit breakers are properly installed, otherwise electric shocks or a fire
may result.

• Dispose of this unit properly and in accordance with regulations. If electrical

appliances are disposed of in land fills or dumps, hazardous substances can
leak into the ground water and thus enter the food chain.

There are two types of precautions as described below:
Warning: Failure to comply may lead to death or serious injury.
Caution: Failure to comply may lead to injury or damage of the unit.
Depending on the situation, this may also lead to serious injury.

When the wired/remote controller is used to set the cooling operations of the
air conditioner, check the following items one by one. If there is a fault,
troubleshoot according to the manual.

Note: Once the power is connected, when the unit is turned on or started
immediately after the unit is turned off, the air conditioner has a protective
function which delays the start of the compressor.

8. Test Run

8.1 Things to Note Before Test Run

8.2 Test Run



Indoor and outdoor units are properly installed;



Piping and wiring are correct;



No leakage from the refrigerant piping system;



Water discharge is smooth;

