Giatsu JONICA GIA-FST3-O-48JON Service manual

OWNER’S AND
INSTALLATION MANUAL
Thanks for choosing our product.
Please, read carefully this manual
before using the product.
ENGLISH
JÓNICA
GIA-FST3-O-48JON
OUTDOOR UNIT
COLUMN AIR CONDITIONER

Content
Safety Precautions..........................................................................................1
Outline of the Unit and Main Parts.................................................................3
Preparative for Installation.............................................................................4
Selection of the Installation Location............................................................4
Connection Pipe Requirement.....................................................................5
Electrical Requirement.................................................................................5
Installation of the Unit....................................................................................7
Installation of the Outdoor Unit....................................................................7
Installation of the Connection Pipe......................................................... ...8
Vacuum and Gas Leakage Inspection........................................................11
Electrical Wiring.........................................................................................12
Test Running..................................................................................................15
Trial Operation and Testing........................................................................15
Working Temperature Range.....................................................................16
Troubleshooting and Maintenance..............................................................17
Troubleshooting.........................................................................................17
Routine Maintenance.................................................................................18
This marking indicates that this product should not be disposed with other
household wastes throughout the EU. To prevent possible harm to the
environment or human health from uncontrolled waste disposal, recycle
it responsibly to promote the sustainable reuse of material resources. To
return your used device, please use the return and collection systems or
contact the retailer where the product was purchased. They can take this
product for environmental safe recycling.

1
Safety Precautions
WARNING!
CAUTION!
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.
WARNING!
This appliance is not intended for use by persons (including
children) with reduced physical, sensory or mental capabilities,
or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the appliance
by a person responsible for their safety.
Children should be supervised to ensure that they do not play
with the appliance.
For operating the air conditioner pleasantly, install it as outlined
in this installation manual.
Connect the indoor unit and outdoor unit with the room air
conditioner piping and cord available from our standard parts.
This installation manual describes the correct connections
using the installation set available from our standard parts.
Installation work must be performed in accordance with national
wiring standards by authorized personnel only.
If refrigerant leaks while work is being carried out, ventilate
the area. If the refrigerant comes in contact with a ame, it
produces toxic gas.
Do not power on until all installation work is complete.
During installation, make sure that the refrigerant pipe is
attached rmly before you run the compressor.
Do not operate the compressor under the condition of
refrigerant piping not attached properly with 2-way or 3-way
valve open.
This may cause abnormal pressure in the refrigeration cycle
that leads to breakage and even injury.

2
During the pump-down operation, make sure that the compressor
is turned off before you remove the refrigerant piping.
Do not remove the connection pipe while the compressor is in
operation with 2-way or 3-way valve open.
This may cause abnormal pressure in the refrigerant cycle that
leads to breakage and even injury.
When installing and relocating the air conditioner, do not mix
gases other than the specied refrigerant (R410A) to enter the
refrigerant cycle.
If air or other gas enters the refrigerant cycle, the pressure
inside the cycle will rise to an abnormally high value and cause
breakage, injury, etc.
This appliance is not intended for use by persons (including
children) with reduced physical, sensory or mental capabilities,
or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the
appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play
with the appliance.
If the supply cord is damaged, it must be replaced by the
manufacturer, its service agent or similarly qualied persons in
order to avoid a hazard.
The appliance shall be installed in accordance with national
wiring regulations.
Safety Precautions

3
Outline of the Unit and Main Parts
Outdoor unit
NOTE
● The connection pipe and duct for this unit should be prepared by the user.
● The unit is standard equipped with rectangular duct.
● Actual product may be different from above graphics, please refer to actual products.
Outdoor
Unit
Drainage
Connecter 1To connect with the hard PVC
drain pipe
Drain Plug 3 To plug the unused drain hole
Other Instructions，Bar code
Standard Accessory Parts
Table 1
Air outlet
Air inlet
Air inlet
Front Grill
Front Side Plate
Handle
Valve cover
Air outlet
Fig.1

4
Preparative for Installation
Selection of the Installation Location
WARNING!
WARNING!
CAUTION!
The unit must be installed where strong enough to withstand the weight of the unit and xed
securely, otherwise the unit would topple or fall off.
● Install the unit where it will not be tilted by more than 5°.
● During installation, if the outdoor unit has to be exposed to strong wind, it must be xed
securely.
● Do not install where there is a danger of combustible gas leakage.
● Do not install the unit near heat source, steam, or ammable gas.
● Children under 10 years old must be supervised not to operate the unit.
1. If possible, do not install the unit where it will be exposed to direct sunlight.
(If necessary, install a blind that does not interfere with the air ow.)
2. Install the outdoor unit in a place where it will be free from getting dirty or getting wet by
rain as much as possible.
3. Install the outdoor unit where it is convenient to connect the indoor unit.
4. Install the outdoor unit where the condensate water can be drained out freely during
heating operation. Do not place animals and plants in the path of the warm air.
5. Take the air conditioner weight into account and select a place where noise and vibration
are small.
6. Install the outdoor unit where is capable of withstanding the weight of the unit and
generates as less noise and vibration as possible.
7. Provide the space shown in Fig.1, so that the air ow is not blocked. Also for efcient
operation, leave three of four directions of peripheral constructions open.
Decide the installation location with the customer as follows:
Outdoor Unit
Fig.2
＞500
＞500
＞500
＞500
＞2000
＞2000
＞1000
Units: mm

5
Preparative for Installation
Connection Pipe Requirement
CAUTION!
The maximum length of the connection pipe is listed in the table below. Do not place the
units between which the distance exceeds the maximum length of the connection pipe.
Model
Size of Fitting Pipe
(Inch) Max.Pipe Length
(m)
Max.height Difference between
Indoor Unit and Outdoor Unit
(m)
Liquid Gas
GIA-FST3-O-48JON 3/8 5/8 50 30
Note:
1. The connection pipe should be insulated with proper water-proof insulating material.
2. The pipe wall thickness shall be 0.5-1.0mm and the pipe wall shall be able to withstand
the pressure of 6.0 MPa.The longer the connecting pipe, the lower the cooling and heating
effect performs.
Table 2
Model Power Supply Capability of
Air Switch(A)
Minimum
Sectional Area of
Power Cable and
Earth line (mm2)
Minimum
Sectional Area of
Power Cable and
Earth line (mm2)
GIA-FST3-O-48JON 380-415V~,50Hz 16 1.5 1.5
Table 3
Electrical Requirement
Electric Wire Size and Fuse Capacity.
Note:
1.The fuse is located on the main board.
2. Install the disconnect device with a contact gap of at least 3mm in all poles nearby the
units.The appliance must be positioned so that the plug is accessible.
3. The specications of the breaker and power cable listed in the table above are determined
based on the maximum power (maximum amps) of the unit.
4. The specications of the power cable listed in the table above are applied to the
conduitguarded multi-wire copper cable (like, YJV copper cable, consisting of PE insulated
wires and a PVC cable jacket) used at 40°С and resistible to 90°С(see IEC 60364-5-52).
If the working condition changes, they should be modied according to the related national
standard.

6
Preparative for Installation
5. The specications of the breaker listed in the table above are applied to the breaker with
the working temperature at 40°С. If the working condition changes, they should be
modied according to the related national standard.
6. Take 2 pieces of power cord of 0.75mm2as the communication lines between indoor and
outdoor unit, with their longest lengths of 50m. Please select the appropriate line length as
per the actual installation conditions. The communication lines can not be twisted together.
For the unit, it’s recommended to use 8m long communication line.
7. Take 2 pieces of power cord of 0.75mm2as the communication lines between the wired
controller and the indoor unit, with their longest lengths of 30m. Please select the
appropriate line length as per the actual installation conditions. The communication lines
can not be twisted together. It’s recommended to use 8m long communication line.
8.
The wire size of the communication line should be no less than 0.75mm
2
. It’s recommended
to take 0.75mm2power cords as the communication line.

7
Installation of the Unit
1. Outdoor unit dimension
Installation of the Outdoor Unit
WARNING!
● Install the unit where it will not be tilted by more than 5°.
● During installation, if the outdoor unit has to be exposed to strong wind, it must be xed
securely.
A
F
D
G
E
B
C
AB C D E F G
GIA-FST3-O-48JON 1020 396 1350 590 364 950 340
Item
Model
Table 4 Units: mm
Fig.3

8
2. Condensate Drainage of the Outdoor Unit(Only for the heat pump unit)
(1). It is required to install a drain pipe for the outdoor unit to drain out the condensate water
during heating operation. (only for the heat pump unit)
(2). When installing the drain pipe, apart from the drain
pipe mounting hole, all other holes should be
plugged so as to avoid water leakage.(only for the
heat pump unit)
(3). Installation Method: Insert the pipe joint into the hole
Φ25 located at the base plate of the unit and then
connect the drain pipe to the pipe joint. Drain joint Fig.4
Installation of the Unit
ĸh
1. Flare Processing
2. Bending Pipes
(1). Cut the connection pipe with the pipe cutter and remove the burrs.
(2). Hold the pipe downward to prevent cuttings from entering the pipe.
(3). Remove the are nuts at the stop valve of the outdoor unit and inside the accessory bag
of the indoor unit, then insert them to the connection pipe, after that, are the connection
pipe with a aring tool.
(4). Check if the are part is spread evenly and there are no cracks (see Fig.5).
(1). The pipes are shaped by your hands. Be careful not to collapse them.
Installation of the Connection Pipe
Fig.5
Fig.6
Extend the pipe by unwinding it

9
Installation of the Unit
(2). Do not bend the pipes in an angle more than 90°.
(3). When pipes are repeatedly bent or stretched, the material will harden, making it difcult
to bend or stretch them any more. Do not bend or stretch the pipes more than three
times.
(4). When bending the pipe, do not bend it as is.
The pipe will be collapsed. In this case, cut the
heat insulating pipe with a sharp cutter as shown
in Fig.7, and bend it after exposing the pipe.
After bending the pipe as you want, be sure to
put the heat insulating pipe back on the pipe, and
secure it with tape. Fig.7
Pipe
Cutter
Cutt line
Heat insulating pipe
CAUTION!
● To prevent breaking of the pipe, avoid sharp bends. Bend the pipe with a radius of
curvature of 150 mm or over.
● If the pipe is bent repeatedly at the same place, it will break.
3. Connecting the Pipe at the Indoor Unit Side
CAUTION!
● Be sure to apply the pipe against the port on the indoor unit correctly. If the centering is
improper, the are nut cannot be tightened smoothly. If the are nut is forced to turn, the
threads will be damaged.
● Do not remove the are nut until the connection pipe is to be connected so as to prevent
dust and impurities from coming into the pipe system.
Detach the caps and plugs from the pipes.
Centering the pipe against port on the indoor unit, turn the are nut with your hand.
Table 5 Flare nut tightening torque
Pipe Diameter (Inch) 1/4 3/8 5/8 1/2 3/4 7/8
Tightening Torque (N·m) 15-30 35-40 60-65 45-50 70-75 80-85
CAUTION!
Be sure to connect the gas pipe after connecting the liquid pipe completely.

10
Installation of the Unit
Fig.8
Fig.9
Fig.10
4. Connecting the Pipe at the Outdoor Side Unit
Tighten the flare nut of the connection pipe at the outdoor
unit valve connector. The tightening method is the same as
that as at the indoor side.
5. Checking the Pipe Connections for Gas Leaking
For both indoor and outdoor unit side, check the joints for
gas leaking by the use of a gas leakage detector without fail
when the pipes are connected.
6. Liquid Pipe and Drain Pipe
If the outdoor unit is installed lower than the indoor unit (See Fig.9)
(1). A drain pipe should be above ground and the end of the
pipe does not dip into water. All pipes must be restrained to the
waby saddles.
(2). Taping pipes must be done from bottom to top.
(3). All pipes are bound together by tape and restrained to wall
by saddles.
If the outdoor unit is installed higher than the indoor unit (See Fig.10)
(1). Taping should be done from lower to tpart.
(2). All pipes are bound and taped together and also
should be trapped to prevent water from returning
the room.
(3). Restraint all pipes to the wall with saddles.
Saddle
Sealed

11
Installation of the Unit
Vacuum and Gas Leakage Inspection
CAUTION!
Do not purge the air with refrigerants but use a vacuum pump to vacuum the installation!
There is no extra refrigerant in the outdoor unit for air purging!
(1). Remove the caps of the liquid valve, gas valve and also the service port.
(2). Connect the hose at the low pressure side of the manifold valve assembly to the service
port of the unit’s gas valve, and meanwhile the gas and liquid valves should be kept
closed in case of refrigerant leak.
(3). Connect the hose used for evacuation to the vacuum pump.
(4). Open the switch at the lower pressure side of the manifold valve assembly and start the
vacuum pump. Meanwhile, the switch at the high pressure side of the manifold valve
assembly should be kept closed, otherwise evacuation would fail.
(5). The evacuation duration depends on the unit’s capacity, generally, 15 minutes for the
12K units, 20 minutes for the 18K units, 30 minutes for the 24/36/42K units, 45 minutes
for the 48/60K units. And verify if the pressure gauge at the low pressure side of the
manifold valve assembly reads -1.0Mp (-75cmHg), if not, it indicates there is leak
somewhere. Then, close the switch fully and then stop the vacuum pump.
1. Vacuum
Hose with the valve pin
gauge manifold
pipe
pipe
VAC valve
Vacuum pump
Service port
Low pressure gauge
High pressure gauge
Gauge manifold kit
Fig.11
(6). Wait for some time to see if the system pressure can remain unchanged, 3 minutes for
the units less than 18K, 5 minutes for the 18K~24K units,10 minutes for the 36/42/48/60K
units. During this time, the reading of the pressure gauge at the low pressure side can
not be larger than 0.005Mp (0.38cmHg).
(7). Slightly open the liquid valve and let some refrigerant go to the connection pipe to
balance the pressure inside and outside of the connection pipe, so that air will not come
into the connection pipe when removing the hose. Note that the gas and liquid valve can
be opened fully only after the manifold valve assembly is removed.
(8). Place back the caps of the liquid valve, gas valve and also the service port.

12
Installation of the Unit
Refrigerant suitable for a piping length of 5m is charged in the 12~42K outdoor unit at the
factory, and for 48~60K outdoor unit refrigerant is charged for a piping length of 7.5m.
When the piping of 18~42K unit is longer than 7.5m or the piping of 48~60K unit is longer
than 9.5m, additional charging is necessary.
2. Additional Charge
Model Additional Refrigerant Amount for Extra Pipe
GIA-FST3-O-48JON 54g/m
Table 6
Oil bend
Oil bend
Indoor
Outdoor
6m
When the height difference between the indoor unit and outdoor unit is larger than 10 meters,
an oil bend should be employed for every 6 meters.
Fig.12
Electrical Wiring
1. Wiring Precautions
WARNING!
● Before obtaining access to terminals, all supply circuits must be disconnected.
● The rated voltage of the unit is as shown as table 3
● Before turning on, verify that the voltage is within the 198~264V range (for single phrase
unit) or 342~415V range (for three-phrase unit).
● Always use a special branch circuit and install a special receptacle to supply power to the
air conditioner.
● Use a special branch circuit breaker and receptacle matched to the capacity of the air
conditioner.
Note:
For the large-sized unit, it has the service port for both the gas valve and the liquid valve.
During evacuation, it is available to connect two hoses of the manifold valve assembly to two
service ports to quicken the evacuating speed.

13
Installation of the Unit
CAUTION!
● The power source capacity must be the sum of the air conditioner current and the current
of other electrical appliances. When the current contracted capacity is insufcient, change
the contracted capacity.
● When the voltage is low and the air conditioner is difcult to start, contact the power
company to raise the voltage.
● The special branch circuit breaker is installed in the permanent wiring. Always use a circuit
that can trip all the poles of the wiring and has an isolation distance of at least 3mm
between the contacts of each pole.
● Perform wiring work in accordance with standards so that the air conditioner can be
operated safely and positively.
● Install a leakage special branch circuit breaker in accordance with the related laws and
regulations and electric company standards.
2. Electrical Wiring
(1). For solid core wiring (Fig.13)
1). Cut the wire end with a wire cutter or wire-cutting pliers, then strip the insulation about
25mm (15/16") .
2). Using a screwdriver, remove the terminal screw(s) on the terminal board.
3). Using pliers, bend the solid wire to form a loop suitable for the terminal screw.
4). Shape the loop wire properly, place it on the terminal board and tighten securely with
the terminal screw using a screwdriver.
(2). For strand wiring (Fig.13)
1). Cut the wire end with a wire cutter or wire-cutting pliers, then strip the insulation about
10mm (3/8") .
2). Using a screwdriver, remove the terminal screw(s) on the terminal board.
3). Using a round terminal fastener or pliers, securely clamp a round terminal to each
stripped wire end.
4). Position the round terminal wire, and replace and tighten the terminal screw with a
screwdriver.(Fig.14)
Solid wire Strand wire
Solderless terminal
Insulation laver
Fig.13

14
Installation of the Unit
(3). How to x connection cord and power cord by cord clamp
After passing the connection cord and power cord through the insulation tube, fasten it with
the cord clamp.(Fig.15)
Fig.14
Fig.15
Screw with
special washer
Wire
Wire
Terminal
board
Round
terminal
Round
terminal
Insulation tube
Insulation tube
Cord clamp
CAUTION!
● Before starting work, check that power is not being supplied to the indoor unit and outdoor
unit.
● Match the terminal block numbers and connection cord colors with those of the indoor unit
side.
● Erroneous wiring may cause burning of the electric parts.
● Connect the connection cords rmly to the terminal block. Imperfect installation may cause
a re.
● Always fasten the outside covering of the connection cord with cord clamps. (If the
insulator is not clamped, electric leakage may occur.)
● Always connect the ground wire.
(4). Electric wiring between the indoor and outdoor units
Refer to the Installation Manual of the controller for more details.
Installation of Controllers
Three phase power supply unit:
/
OUTDOOR UNIT
/ / 11  
INDOOR UNIT
/ / / 1
POWER
yellow-
blue
black brown
blue
brown
violet
(gray)
black
green
yellow-
gree
n
Fig.16

15
Test Running
The meaning of error codes as shown below:
Note: When the unit is connected with the wired controller, the error code will be
simultaneously shown on it.
Trial Operation and Testing
Table 7
Error Code Name
CL Filter lth blockage alert
E0 High exhaust temp. protection
E1 Overcapacity protection
E2 Compressor overload protection
E4 System high pressure protection
E5 System low pressure protection
E6 Lack refrigerant/valve stop protection
L0 Jumper malfunction
L2 No feedback signal of indoor unit fan
L3 Communication malfunction
L7 The communication between indoor unit and wired controller fault
L9 Water full protection
U0 Short/open circuit of indoor environment sensor
U1 Short/open circuit of indoor unit tube sensor
U2 Outdoor temp. sensor open/short circuit
U6 Liquid pipe temp. sensor malfunction
U7 Gas pipe temp. sensor malfunction
PC Mode conict

16
Table 8
Working Temperature Range
Test Running
The unit may not work properly temperature range
Cooling
operation
Outdoor side temperature:
above 43°C or below 15°C Heating
operation
Outdoor side temperature:
above 24°C or below -15°C
Indoor side temperature:
below 21°C
Indoor side temperature:
above 27°C
Note:
1. The design of this unit conforms to the requirements of EN14511 standard.
2. The air volume is measured at the relevant standard external static pressure.
3. Cooling (heating) capacity stated above is measured under nominal working conditions
corresponding to standard external static pressure. The parameters are subject to change
with the improvement of products, in which case the values on nameplate shall prevail.
4. In this table, there are two outside DB values under the low temp cooling conditions, and
the one in the brackets is for the unit which can operate at extreme low temperature.

17
Troubleshooting and Maintenance
Troubleshooting
If your air-conditioning unit suffers from abnormal operation or failure, please rst check the
following points before repair:
Failure Possible Reasons
The unit cannot be started.
1. The power supply is not connected.
2. Electrical leakage of air-conditioning unit
causes tripping of the leakage switch.
3. The operating keys are locked.
4. The control loop has failure.
The unit operates for a while and then
stops.
1. There is obstacle in front of the condenser.
2. The control loop is abnormal.
3. Cooling operation is selected when the
outdoor ambient temperature is above 52°C.
Poor cooling effect.
1. The air lter is dirty or blocked.
2. There is heat source or too many people
inside the room.
3. The door or window is open.
4. There is obstacle at the air intake or outlet.
5. The set temperature is too high.
6. There is refrigerant leakage.
7. The performance of room temperature
sensor becomes worse
Poor heating effect
1. The air lter is dirty or blocked.
2. The door or window is not rmly closed.
3. The set room temperature is too low .
4. There is refrigerant leakage.
5. The outdoor ambient temperature is lower
than -5°C.
6. Control loop is abnormal.
After carrying out the check of the above items and taking relevant measures to solve the
problems found but the air-conditioning unit still does not function well, please stop the
operation of the unit immediately and contact the local service agency. Only ask professional
serviceman to check and repair the unit.
Table 9

18
Troubleshooting and Maintenance
Routine Maintenance
Only a qualied service person is allowed to perform maintenance.
Before accessing to terminal devices, all power supply circuits must be disconnected.
Do not use water or air of 50°C or higher for cleaning air lters and outside panels.
Increase the frequency of cleaning if the unit is installed in a room where the air is extremely
contaminated.(As a yardstick for yourself, consider cleaning the lter once a half year.)
If dirt becomes impossible to clean, change the air lter. (Air lter for exchange is optional.)
(1). Removing the air lter from the duct.
(2). Cleaning the air lter
Remove dust from the air lter using a vacuum cleaner and gently rinse them in cool
water. Do not use detergent or hot water to avoid lter shrinking or deformation. After
cleaning dry them in the shade.
(3). Replacing the air lter
Reinstall the lter as before.
Note:
1. Do not remove the air lter except for cleaning. Unnecessary handling may damage the
lter.
2. Do not clean the unit with gasolene, benzene, thinner, polishing powder or liquid
insecticide, otherwise it would cause discoloration and deformation of the unit.
3. Do not wet the indoor unit in case of electric shock or re hazard.