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MZ series
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1 Safety Precautions
This is the 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.
This mark indicates procedures which, if improperly performed, might lead to the death or serious
injury of the user.
This mark indicates procedures which, if improperly performed, might possibly result in personal
harm to the user, or damage to property.
NOTICE is used to address practices not related to personal injury.
1) Instructions for installation and use of this product are provided by the manufacturer and accompany each unit.
The instruction of installation, maintenance and operating and safety instructions shall be included.
2) Installation must be performed in accordance with the requirements of NEC and CEC by authorized personnel
only.
3) 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.
4) 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.
5) Be sure to use the exclusive accessory and part to prevent the water leakage, electric shock and fire accidents.
6) If refrigerant leakage happens during installation, please ventilate immediately. Poisonous gas will emerge if the
refrigerant gas meets fire.
7) Wire size of power cord should be large enough. The damaged power cord and connection wire should be
replaced by exclusive cable.
8) After connecting the power cord, please fix the electric box cover properly in order to avoid accident.
9) Never fail to comply with the nitrogen charge requirements. Charge nitrogen when welding pipes.
10) Never short-circuit or cancel the pressure switch to prevent unit damage.
11) Please firstly connect the wired controller before energization, otherwise wired controller can not be used.
12) Before using the unit, please check if the piping and wiring are correct to avoid water leakage, refrigerant leakage,
electric shock, or fire etc.
13) Do not insert fingers or objects into air outlet/inlet grille.
14) 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.
15) Never start up or shut off the air conditioner by means of directly plug or unplug the power cord.
16) Turn off the unit after it runs at least five minutes; otherwise it will influence oil return of the compressor.
17) Do not allow children operate this unit.
18) Do not operate this unit with wet hands.
19) Turn off the unit or cut off the power supply before cleaning the unit, otherwise electric shock or injury may
happen.
20) Never spray or flush water towards unit, otherwise malfunction or electric shock may happen.
21) Do not expose the unit to the moist or corrosive circumstances.
22) 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).
23) Volatile liquid, such as diluent or gas will damage the unit appearance. Only use soft cloth with a little neutral
detergent to clean the outer casing of unit.
24) Under cooling mode, please don't set the room temperature too low and keep the temperature difference between
indoor and outdoor unit within 41
℉
25) If anything abnormal happens (such as burning smell), please power off the unit and cut off the main power
supply, and then immediately contact appointed service center. If abnormality keeps going, the unit might be
damaged and lead to electric shock or fire.
26) User is not allowed to repair the unit. Fault service may cause electric shock or fire accidents. Please contact
appointed service center for help.
