Installation and Maintenance
SERVICE MANUAL
3) Installation of the Protection Layer of the Refrigerant Pipe
a. The refrigerant pipe should be insulated by the insulating material and plastic tape in order to prevent condensation and water
leakage.
b. The joints of the indoor unit should be wrapped with the insulating material and no gap is allowed on the joint of the indoor unit, as
shown in Fig.9.
CAUTION!
After the pipe is protected well enough, never bend it to form a small angle; otherwise it would crack or
break.
4)Wrap the Pipe with Tape
:
a. Bundle the refrigerant pipe and electric wire together with tape, and separate them from the drain pipe to
b. Wrap the pipe from the bottom of the outdoor unit to the top of the pipe where it enters the wall. During
the wrapping, the later circle should cover half of the former one.
c. Fix the wrapped pipe on the wall with clamps.
CAUTION!
①
. Do not wrap the pipe too tightly; otherwise the insulation effect would be weakened. Additionally, make
sure the drain hose is separated from the pipe.
②
(4) Support and protection for pipeline
Support should be made for hanging connection pipe. Distance between each support can not be over 1m.
8.2.3 Air Purging and Refrigerant Charge
Air purging
1)The refrigerant has been charged into the outdoor unit before shipment, while additional refrigerant still
2)Check if the liquid valve and the gas valve of the outdoor unit are closed fully.
the vacuum pump.
4)When the compressor is not running, charge the R410A refrigerant into the refrigerant pipe from the liquid
valve of the outdoor unit (do not do it from the gas valve).
Additional refrigerant charging
1)Refrigerant Charge in the Outdoor Unit before Shipment
Notes
:
a
. Outdoor unit has been charged refrigerant before delivery. The refrigerant charge is not included those charged additionally in the
Safety Precautions
Please read this manual carefully before using and operating correctly as instructed in this manual.
Please especially take notice of the following two symbols:
Warning! It indicates improper operation which will lead to human casualty or severe injury.
Caution! It indicates improper operation which will lead to injury or property damage.
Warning!
The installation should be committed to the appointed service center; otherwise it will cause water
Please install the unit
in a place
where is strong enough to withstand the weight of the unit; otherwise,
the unit would fall down and cause injury or death.
The drain pipe should be installed as instructed in the manual to guarantee the proper drainage;
meanwhile it should be insulated to prevent condensing; otherwise the improper installation would cause water
leakage and then wet the household wares in the room.
Under the occurrence of an error (like burning smell etc.), please cut off the main power supply of the
unit.
Please take notice of the supporting frame of the unit to see if it is damaged over the long time period of
use.
or relocation of the unit.
Non-professional personnel are prohibited to dismantle the electric box owing to the high voltage of the
outdoor unit.
An all-pole disconnection switch having a contact separation of at least 3mm in all poles should be
Caution!
nameplate and also check its security.
Before using the unit, please check if the piping and wiring are correct to avoid water leakage,
The main power supply must be earthed to avoid the hazard of electric shock and never connect this
earth wire to the gas pipe, running water pipe, lightening rod or phone cable’s earth lead.
Do not allow children operate this unit.
Do not operate this unit with wet hands.
When the unit is not to be used for a long time, please cut off the main power supply of the unit.
Safety Precautions
Please read this manual carefully before using and operating correctly as instructed in this manual.
Please especially take notice of the following two symbols:
Warning! It indicates improper operation which will lead to human casualty or severe injury.
Caution! It indicates improper operation which will lead to injury or property damage.
Warning!
The installation should be committed to the appointed service center; otherwise it will cause water
Please install the unit
in a place
where is strong enough to withstand the weight of the unit; otherwise,
the unit would fall down and cause injury or death.
The drain pipe should be installed as instructed in the manual to guarantee the proper drainage;
meanwhile it should be insulated to prevent condensing; otherwise the improper installation would cause water
leakage and then wet the household wares in the room.
Under the occurrence of an error (like burning smell etc.), please cut off the main power supply of the
unit.
Please take notice of the supporting frame of the unit to see if it is damaged over the long time period of
use.
or relocation of the unit.
Non-professional personnel are prohibited to dismantle the electric box owing to the high voltage of the
outdoor unit.
An all-pole disconnection switch having a contact separation of at least 3mm in all poles should be
Caution!
nameplate and also check its security.
Before using the unit, please check if the piping and wiring are correct to avoid water leakage,
No gap
"LO"Knob
"HI"Knob
Vacuuming pump
Manometer
Manometer
Connection hose
liquid valve
Gas valve
Fig.7
Fig.8
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