Service Manual
35
Installation and Maintenance
Safety Precaution:
1. Must follow the electric safety regulations when installing the unit.
2. If the supply cord is damaged, it must be replaced by the
manufacturer or its service agent or a similarly qualified person in
order to avoid a hazard.
3. According to the local safety regulations, use qualified power
supply circuit and air switch.
4. A air switch having a contact separation of at least 3mm in all
poles should be xed in xed wiring.
5. The appliance shall be installed in accordance with national wiring
regulation.
6. The air switch must have the functions of magnetic tripping and
heat tripping in order to prevent short circuit or overload. Please
install the air switch with suitable capacity according to the sheet
below.
7. Make sure the power supply matches with the requirement of air
conditioner.Unstable power supply or incorrect wiring may result in
electric shock, re hazard or malfunction. Please install proper power
supply cables before using the air conditioner.
8.Properly connect the live wire, neutral wire and grounding wire of
power socket.
9.Be sure to cut off the power supply before proceeding any work
related to electric safety.
10.Do not put through the power before nishing installation.
11. To be in compliance with EN 61000-3-11, impedance value of
power-supply system connected to product must be less than or
equal to the allowable maximum value of |Zsys| in the following
sheet:
Before connecting the product to public power network, please
consult your local power upply authority to ensure that the power
network has met the above requirements.
No requirement for the unlisted product’s impedance value of power-
supply system.
Grounding Requirement:
1. The air conditioner is first class electric appliance. It must
be properly grounded with specialized grounding device by a
professional. Please make sure it is always grounded effectively,
otherwise it may cause electric shock.
2. The yellow-green wire in air conditioner is grounding wire, which
can't be used for other purposes.
3. The grounding resistance should comply with national electric
safety regulations.
4.Including an air switch with suitable capacity, please note the
following table. Air switch should be included magnet buckle and
heating buckle function, it can protect the circuit-short and overload.
(Caution: please do not use the fuse only for protect the circuit)
8.2 Installation Parts-checking
8.3 Selection of Installation Location
8.4 Requirements for electric connection
Basic Requirement:
Installing the unit in the following places may cause
malfunction. If it is unavoidable, please consult the local dealer:
1.The place with strong heat sources, vapors, flammable or
explosive gas, or volatile objects spread in the air.
2.The place with high-frequency devices (such as welding
machine, medical equipment).
3.The place near coast area.
4.The place with oil or fumes in the air.
5.The place with sulfureted gas.
6.Other places with special circumstances.
Indoor Unit:
1. Avoid installing the indoor unit in a place where generated or
leaked inammable gas will stay.
2. Avoid installing the indoor unit in a moist place or in a place
where oil may be splashed on the unit.
3. Select a location where outlet air may reach each corner of
the room.
4. Select a location where connection pipe can be led to
outdoor conveniently.
5. Select a location where air inlet and outlet won't be blocked.
6. Select a location with least affection of outdoor air.
7. Select a location with rm and at oor.
8. Retain sufcient space for maintenance and installation.
9. Ensure the installation meets the requirement of installation
dimension diagram.
10.Keep it away from uorescent lamp.
Outdoor Unit:
1. Select a location where the noise and outow air emitted by
the outdoor unit will not affect neighborhood.
2. The location should be well ventilated and dry, in which the
outdoor unit won't be exposed directly to sunlight or strong
wind.
3. The location should be able to withstand the weight of
outdoor unit.
4. Make sure that the installation follows the requirement of
installation dimension diagram.
5. Select a location which is out of reach for children and far
away from animals or plants. If it is unavoidable, please add
fence for safety purpose.
6. The height difference between indoor unit and outdoor unit
should be within 5m. The length of connection pipe should be
within 10m.
No. Name No. Name
1 Indoor unit 7 Sealing gum
2 Outdoor unit 8 Wrapping tape
3 Connection pipe 9
Support of outdoor
unit
4 Drainage pipe 10 Fixing screw
5
Connecting
cable(power cord)
11
Drainage plug(cooling
and heating unit)
6 Wall pipe 12
Owner’s manual,
remote controller
1.Please contact the local agent for installation.
2.Don't use unqualied power cord.
Note:
models
max |Zsys| unit:ohms
GVA48AL-M3NNC7A
GVA55AL-M3NNC7A
GVA24AL-K3NNC7A
0.082
0.079
0.036
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