Lennox VRF VEAH024C432P, Installation Manual

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VRF DC Air Handler
1
1 Safety Precautions
WARNING
(1) This product can’t be installed at corrosive, inflammable or explosive environment or the place with
special requirements, such as kitchen. Otherwise, it will affect the normal operation or shorten the service
life of the unit, or even cause fire hazard or serious injury. As for above special places, please adopt
special air conditioner with anti-corrosive or anti-explosion function.
(2) Follow this instruction to complete the installation work. Please carefully read this manual before unit
(3) startup and service.
(4) Wire size of power cord should be large enough.The damaged power cord and connection wire should
be replaced by exclusive cable.
(5) After connecting the power cord, please fix the electric box cover properly in order to avoid accident.
(6) Never fail to comply with the nitrigen charge requirements.Charge nitrogen when welding pipes.
(7) Never short-circiut or cancel the pressure switch to prevent unit damage.
(8) Please firstly connect the wired controller before energization, otherwise wired controller can not be
used.
(9) Before using the unit, please check if the piping and wiring are correct to avoid water leakage, refrigerant
leakage, electric shock, or fire etc..
(10) Do not insert fingers or objects into air outlet/inlet grille.
(11) 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.
(12) Never start up or shut off the air conditioner by means of directly plug or unplug the power cord.
(13) Turn off the unit after it runs at least five minutes; otherwise it will influence oil return of the compressor.
(14) Do not allow children operate this unit.
(15) Do not operate this unit with wet hands.
(16) Turn off the unit or cut off the power supply before cleaning the unit, otherwise electric shock or injury
may happen.
(17) Never spray or flush water towards unit, otherwise malfunction or electric shock may happen.
(18) Do not expose the unit to the moist or corrosive circumstances.
(19) Under cooling mode, please don't set the room temperature too low and keep the temperature difference
between indoor and outdoor unit within 5°C (41°F).
(20) 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.
(21) 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.