Multi Variable Air Conditioners Cassette Type Indoor Unit
1
1 Safety Precautions
WARNING
(1) Follow this instruction to complete the installation work. Please carefully read this manual before unit
startup and service.
(2) Wire size of power cord should be large enough.The damaged power cord and connection wire should be
replaced by exclusive cable.
(3)
After connecting the power cord, please fix the electric box cover properly in order to avoid accident
.
(4) Never fail to comply with the nitrigen charge requirements.Charge nitrogen when welding pipes.
(5) Never short-circiut or cancel the pressure switch to prevent unit damage.
(6)
Please firstly connect the wired controller before energization, otherwise wired controller can not be used.
(7) Before using the unit, please check if the piping and wiring are correct to avoid water leakage, refrigerant
leakage, electric shock, or fire etc..
(8)
Do not insert fingers or objects into air outlet/inlet grille.
(9)
Open the door and window and keep good ventilation in the room to avoid oxygen deficit when the gas/oil
supplied heating equipment is used.
(10) Never start up or shut off the air conditioner by means of directly plug or unplug the power cord.
(11)
Turn off the unit after it runs at least five minutes; otherwise it will influence oil return of the compressor.
(12) Do not allow children operate this unit.
(13) Do not operate this unit with wet hands.
(14) Turn off the unit or cut off the power supply before cleaning the unit, otherwise electric shock or injury
may happen.
(15)
Never spray or flush water towards unit, otherwise malfunction or electric shock may happen.
(16) Do not expose the unit to the moist or corrosive circumstances.
(17) Under cooling mode, please don't set the room temperature too low and keep the temperature difference
between indoor and outdoor unit within 5 (41 ).
(18)
User is not allowed to repair the unit. Fault service may cause electric shock or fire accidents. Please
contact
Lennox
appointed service center for help.
(19)
Before installation, please check if the power supply is in accordance with the requirements specified on
the nameplate. And also take care of the power safety.
(20)
Installation should be conducted by dealer or qualified personnel. Please do not attempt to install the unit
by yourself. Improper handling may result in water leakage, electric shock or fire disaster etc..
(21)
Be sure to use the exclusive accessory and part to prevent the water leakage, electric shock and fire
accidents.
(22) Make sure the unit can be earthed properly and soundly after plugging into the socket so as to avoid electric
shock. Please do not connect the ground wire to gas pipe, water pipe, lightning rod or telephone line.
(23) Electrify the unit 8 hours before operation. Please switch on for 8 hours before operation. Do not cut off
the power when 24 hours short-time halting (to protect the compressor).
