Owner's Manual

Flex + Series
1
1 Safety Precautions
This is t
he safety alert symbol. It is used to alert you to potential personal injury
hazards. Obey all safety messages that follow this symbol to avoid possible injury or
death.
WARNING
This mark indicates procedures which, if improperly performed, might lead to the
death or serious injury of the user.
CAUTION
This mark indicates procedures which, if improperly performed, might possibly result
in personal harm to the user, or damage to property.
NOTICE
NOTICE is used to address practices not related to personal injury.
WARNIN G
1) Instructions for installation and use of this product are provided by the manufacturer.
2) Installation must be performed in accordance with the requirements of NEC and CEC by appointed
personnel only.
3) The installation should be left to the appointed service center and according to the instructions given in the
manual. Improper installation may cause fall down, water leakage, electric shock or fire etc.
4) For operating the air conditioner pleasantly, please install it as outlined in this installation manual.
5) The power supply must adopt the special circuit with air switch protection and assure it has enough capacity
6) Connect the indoor unit, BU module and outdoor unit with the room air conditioner piping and cord
available from our standard parts. This installation manual describes the correct connections using the
installation set available from our standard parts.
7) Before installation, check the parameter of power cord and make sure that it complies with the power
supply requirement on the nameplate. Make sure the power supply is safe.
8) This air conditioner must be properly grounded through the receptacle to avoid electric shock. The ground
wire shouldn’t be connected with gas pipe, water pipe, lightning arrester or telephone line.
9) If refrigerant leaks while work is being carried out, ventilate the area. If the refrigerant comes in contact
with a flame, it produces toxic gas.
10) Do not power on until all installation work is complete.
11) During installation, make sure that the refrigerant pipe is attached firmly before you start up the compressor.
Do not operate the compressor under the condition of refrigerant piping not attached properly with valve
open. This may cause abnormal pressure in the refrigeration cycle that leads to breakage and even injury.
12) When installing and relocating the air conditioner, do not mix gases except the specified refrigerant
(R410A) to enter the refrigerant cycle. If air or other gas enters the refrigerant cycle, the pressure inside the
cycle will rise to an abnormally high value and cause breakage, injury, etc.
13) 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.
14) Never cut off or damage power cables and transmission wires. If the power cable or transmission line were
damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to
avoid a hazard.
15) After the power cord is connected, please install the cover of electric box to avoid danger.