Baxi JSGNW Installation instructions

Indoor Units: (J/L)SGN(W/K/C/D)(20/25/35/50)
Outdoor Units: LSGT(40/50/60/70/100/125)-XM
DC INVERTER AIR CONDITIONER MULTI SPLIT WITH HEAT PUMP MODE.
lnstallation and Support Manual
EN

TABLE OF CONTENTS
1. SAFETY PRECAUTIONS.........................................................................................................3
1.1. WARNINGS FOR INSTALLERS...................................................................................3
1.2. SPECIFIC WARNINGS FOR R32 GAS USE……………………………………………..5
1.3. WEEE WARNINGS .......................................................................................................6
2. ACCESSORIES INCLUDED ....................................................................................................7
2.1. OUTDOOR UNITS........................................................................................................7
2.2. INDOOR UNITS.............................................................................................................7
3. TECHNICAL DATA...................................................................................................................7
3.1. OUTDOOR UNITS ........................................................................................................8
3.2. INDOOR UNITS............................................................................................................8
4. POSSIBLE COMBINATIONS.................................................................................................11
5. INSTALLATION ......................................................................................................................13
5.1. INSTALLING THE OUTDOOR UNIT ..........................................................................13
5.2. INSTALLING THE INDOOR UNIT ..............................................................................16
5.2.1. WALL [(J/L)SGNW(20/25/35/50)]......................................................................16
5.2.2. DUCT [LSGND(25/35/50)-XM]…………………………………………………….19
5.2.3. CASSETTE [LSGNK(25/35/50)-XM]………………………………………………21
5.2.4. FLOOR/CEILING [LSGNC(25/35/50)-XM]………………………………………..24
5.3. INSTALLING THE TOUCH SCREEN WIRED CONTROL…...………………………...26
6. REFRIGERANT PIPING.........................................................................................................27
6.1. CONNECTING THE PIPING.......................................................................................27
6.2. LEAK TEST .................................................................................................................28
6.3. CREATING THE VACUUM.........................................................................................28
6.4. REFRIGERANT GAS CHARGE..................................................................................29
7. WIRING...................................................................................................................................30
7.1. POWER AND CONNECTION WIRING.......................................................................30
7.2. TOUCH SCREEN CONNECTION FOR CASSETTE………………………………......31
7.3. TOUCH SCREEN CONNECTION FOR DUCT & FLOOR/CEILING………………….32
8. OPERATION TEST.................................................................................................................33
8.1. TEST PROCEDURES.................................................................................................33
8.2. EVALUATING PERFORMANCE................................................................................33
9. ERROR CODES.....................................................................................................................34
The appliance can be used by children aged 8 or over and by people with
reduced physical, sensory or mental faculties, or who do not have the
required experience or knowledge, provided they are supervised or have
received instructions on using the appliance safely and understanding its
intrinsic hazards.
Children must not play with the appliance. The cleaning and
maintenance operations reserved to the user must not be performed by
unsupervised children.

1.1. WARNINGS FOR INSTALLERS
- The air conditioner may only be installed, plumbed in and wired by persons who
meet the technical and professional requirements to install and maintain such
systems.
- This air conditioner must be installed in accordance with national plant engineering
regulations. Pay particular attention to the aspects concerning safety and the proper
connection of electrical cables. Errors while connecting cables may lead tofires.
- Connect the air conditioner to the mains or to a power socket with a suitable voltage
and frequency. A power supply with an incorrect voltage and frequency may result in
damage to the unit with a consequent fire risk. The voltage must be stable and
without excessivefluctuations.
- lnstall the condensation drainage piping so as to ensure that the condensation is
removed correctly. Also adopt the most appropriate solutions to prevent heat loss
and the resulting formation of condensation. An incorrect piping configuration may
lead to water leakage and wet furniture and objects in the indoor environment. The
air conditioner must be earthed. Incomplete or poorly set-up earth may cause
electric shocks.
- Do not connect the earth cable to other pipes, water pipes, lightning rods or the
telephone earth wire.
- lnstall an omnipolar switch (with a minimum contact distance of at least 3 mm on all
terminals on the power supply circuit to prevent possible discharge to ground and
short circuits.
- The omnipolar switch and any socket must be installed in an easily accessible
location.
- Do not remove the power cable while the unit is running or with wet hands. Doing so
risks electric shocks andfires.
- Use cables that are intact and whose cross-section is appropriate for the load for the
power supply.
- Do not make joints on the power cable. Use a longer cable if necessary. Joints can
cause overheating or fire.
- In the event that the power cable is damaged, it must be replaced. Use a type of
cable featured in the manualonly.
- Install a noise filter if the power supply emits too muchnoise.
- Do not leave any cables in direct contact with the refrigerant piping which could
reach excessivetemperatures.
- Do not leave any cables in direct contact with moving parts, such as fans. Make sure
the communication cables between the units are connected to the correctterminals.
- Only replace fuses with ones identical to theoriginal.
- lf the filter is very dirty, this will significantly reduce the cooling capacity of the
appliance.
- Tighten the nut to the torque indicated in the device manual. Overtightening can lead
to leakage ofrefrigerant.
- Do not install the indoor unit outside. Doing so may result in damage and electrical
losses.
- During installation of the indoor unit(s), consider the distribution of air in each indoor
unit in the room in order to select the most suitable position and ensure a
temperature as uniform as possible within theenvironment.
- Do not install the indoor unit in a location directly exposed tosunlight.
- Do not install the unit near liquids and highly flammable gases. Install the unit in
locations with the minimum content of dust, smoke, air humidity and corrosive
agents.
1. SAFETY PRECAUTIONS
3

- Place the indoor unit at a distance of at least 1 meter from televisions, radios and
general electrical equipment whose electromagnetic waves may directly influence
the electrical box or remote control.
- Pay particular attention to the installation warnings and conditions of use if the
indoor units are located in hospitals, near medical equipment or generally in places
with significant electromagneticwaves.
- lf the indoor units are installed in areas exposed to high concentrations of magnetic
interference, you must use shielded twisted cables far communication links between
units.
- Do not install inlaundries.
- This type of indoor unit does not use an electric heater. You cannot install an electric
heater or an electric stove at the installationsite.
- Install the indoor unit on a solid surface that can support the weight of the air
conditioner. Make sure that the support is securely installed and the unit is stable
even after running for an extended period. lf not properly secured, the unit may fall
and cause damage or injury to objects andpersons.
- Do not place objects of any kind inside the indoor unit. Remember to check that
there are no foreign objects inside the unit before installation andtesting.
- Far the outdoor unit, choose an installation location where the noise and the air jet
do not disturbneighbors.
- Avoid placing the outdoor unit in a location where it causes an obstacle to
pedestrians.
- Position the outdoor unit in line with local architecturalrules.
- Respect the dimensions given in the manual, the lengths of the refrigerant lines and
the height difference betweenunits.
- Ensure that the appliances are not accessible by disabled persons and children. Do
not block the entrances to the air inlets and outlets. Doing so will significantly reduce
the heating and coolingcapacity.
- Do not place objects on the outdoor unit or climb over it. Perform a test after carrying
out wiring.
- Wiring diagrams are subject to ongoing updates. lt is therefore compulsory to refer to
those on the machine itself.
- Before turning on the air conditioner, make sure that the electrical cables,
condensation drainage pipes and refrigerant connections are properly configured
and installed. This eliminates the risk of water or refrigerant gas leaks or electric
shocks.
- Periodically check the conditions of installation of the unit. Have the system checked
by qualified personnel.
- After switching on the air conditioner, do not switch it off for at least 5 minutes. This
prevents oil from returning to thecompressor.
- Do not disassemble are repair the unit while it isrunning.
4

1.2. SPECIFIC WARNINGS FOR R32 GAS USE
•GENERAL R32 WARNINGS
- Do not mix other refrigerants or products that are not the specified refrigerant (R32)
- The maximum amount of R32 refrigerant allowed per room is generally 1.8 kg. In
case of Air Conditioners with refrigerant charge content higher than 1.8 kg, you
need to respect minimum room area in m
2
(depending on total gas charge and
indoor unit type) as in the table below (Minimum room table).
- If there is a loss of refrigerant gas, it is necessary to immediately provide complete
ventilation of the environment. If the R32 refrigerant comes in contact with a flame it
could cause the presence of toxic gas in the environment.
- All equipment required for installation and maintenance (vacuum pump, pressure
gauge, load hose, gas leak detector, etc.) must be certified for use with R32 gas.
- Do not use the same instrumentation (vacuum pump, pressure gauge, load hose, gas
leak detector, etc.) with different types of refrigerants. The use of different refrigerant
gases can cause damage to the instrument itself or to the air conditioner.
- Comply with the instructions contained in this manual regarding the installation,
maintenance and equipment required for R32 refrigerant gas.
- Respect the current regulations for the use of R32 refrigerant gas.
- Check the status of the existing refrigerant pipes carefully. The R32 is an high pressure
gas (similar to R410A) and therefore the use of old and/or worn pipes could expose to
the risk of explosion.
•R32 REQUIRED EQUIPMENT
EQUIPMENT
To be used exclusively with R32 gas (not
use these instruments if they have been
already used with R22 or R407C)
Gauge manifold, charging hose, refrigerant
recovery equipment, refrigerant cylinder,
refrigerant cylinder charging port, gas leak
detector, vacuum pump (if it is not the type
with the reverse-flow check valve).
Equipment used in the past with R22 and
R407C gas that could also be used with
R32
Vacuum pump with reverse-flow check
valve, bender, torque wrench, pipe cutter,
welder and nitrogen cylinder, refrigerant
charging meter, vacuum gauze.
•R32 PIPES
The regulation for refrigerant gas pipes is EN12735. According to this standard,
the pipes required must be copper only, have a thickness of at least 0.8mm and
of the type C1220T-O (only the pipes with dimension ¾ "require the use of pipes
of the type 1/2H). In essence, therefore, the restrictions on the pipes are
absolutely the same as those of R410A, if a pipe meets the specific regulations
for R410A, it is also suitable for R32. Therefore also the procedure of replacing
old machines in R22 or R407 is absolutely identical between R410 and R32.
Please refer to the table below for the characteristics of the pipes.
Dimension B
Dimension A
5

PIPES
Dimension
(mm)
Dimension
(inch)
Radial thickness
(mm)
Type
Dimens. A
flare (mm)
Dimens. B
flare nuts
type 2 (mm)
Ø6.35
1/4”
0.8
Pipes type O
9.1
17.0
Ø9.52
3/8”
0.8
Pipes type O
13.2
22.0
Ø12.7
1/2”
0.8
Pipes type O
16.6
26.0
Ø15.88
5/8”
1.0
Pipes type O
19.7
29.0
Ø19.05
3/4”
1.0
Pipes type 1/2H or H
24.0
36.0
The choice of the most suitable copper pipes must take into account the higher operating
pressure of the R32 gas compared to the old R22 and R407C refrigerants. Please refer to
the table below.
GAS TYPE
MAX OPERATING PRESSURE
R32
4.15 MPa
R407C, R22
3.40 MPa
•MINIMUM ROOM DIMENSIONS FOR R32 INSTALLATION
The area of the room in which R32 refrigerant air conditioner is installed cannot be less
than the minimum area specified in the table below, to avoid potential safety problems due
to out-of-limit of refrigerant concentration inside the room caused by leakage of refrigerant
from refrigeration system of the indoor unit.
The reference installation height for wall type air conditioners is 1.8 m. The floor/ceiling (in
floor installation) reference height is 0.6 m. Finally, cassettes and floor/ceiling (in ceiling
installation) reference height is 2.2 m.
1.3. WEEE WARNINGS
- Do not dispose of electronic equipment as household waste. Use
proper disposalfacilities.
- Contact your local council for more information about the collection
systemsavailable.
- lf electrical appliances are disposed of in landfills, hazardous
substances can leak out, contaminate water and reach the food chain,
affecting our health and wellbeing.
- When old appliances are replaced by new ones, the retailer is legally
obliged to take back your old appliance far disposal free of charge.
6

2.1. OUTDOOR UNITS
QUANTITY
N°
NAME
LSGT40-2M
LSGT50-2M
LSGT60-3M
LSGT70-3M
LSGT100-4M
LSGT125-5M
1
Installer manual
1
1
1
1
1
1
2
Drainage connector
1
1
1
1
1
1
3
Pipe adaptor
0
0
1
1
2
3
4
Copper nuts
8
8
12
12
16
20
2.2. INDOOR UNITS
QUANTITY
N°
NAME
(J/L)SGNW
LSGND-XM
LSGNK-XM
LSGNC-XM
1
User manual
1
1
1
1
2
Remote Control
1
0
1
1
3
Batteries for Remote Control
2
0
2
2
4
Touch screen wired Control
0
1
0
0
5
Connection cables for Touch
screen wired Control
0
1
0
0
6
Panel screw
0
0
4
0
7
Drainage tube
0
1
1
1
8
Pipe adaptor
0
1
1
1
9
Thermal insulation pipe
2
2
2
2
 N.B.
-All the descriptions and figures shown in this manual areapproximate and
may differ slightly from the actual appliance purchased and its conditions of
use.
Operation limits
INDOOR UNIT
OUTDOOR UNIT
COOLING
MAX
52 °C
MIN
15 °C
-10 °C
HEATING
MAX
30 °C
24 °C
MIN
-15 °C
2. ACCESSORIES INCLUDED
3. TECHNICAL DATA
7

3.1. OUTDOOR UNITS
MULTI OUTDOOR UNITS
LSGT40-2M
LSGT50-2M
LSGT60-3M
LSGT70-3M
LSGT100-4M
LSGT125-5M
Combinability
2x1
2x1
3x1
3x1
4x1
5x1
Type
ULTRA DC
Inverter
ULTRA DC
Inverter
ULTRA DC
Inverter
ULTRA DC
Inverter
ULTRA DC
Inverter
ULTRA DC
Inverter
Cooling capacity nom.(min.-max.)
(kW)
4,10
(1,80-4,51)
5,30
(2,00-5,83)
6,20
(2,20-6,71)
7,90
(2,30-8,69)
10,50
(2,50-11,00)
12,00
(2,77-12,70)
Heating capacity nom.(min.-max.)
(kW)
4,80
(2,05-5,28)
5,60
(2,21-6,16)
6.60
(2,39-7,26)
8,20
(2,45-9,02)
11,00
(2,67-11,20)
13,00
(2,96-13,10)
SEER/SCOP
6.15/4.05
7.08/4.06
6.45/4.39
6.29/4.04
6.20/4.00
6.10/4.00
Energy rating cooling/heating
A++/A+
A++/A+
A++/A+
A++/A+
A++/A+
A++/A+
Power consumption cooling
nom.(min.-max.) (kW)
1,24
(0,20-2,1)
1,75
(0,28-2,30)
1,92
(0,35-2,80)
2,46
(0,56-3,40)
3,95
(0,68-4,93)
4,45
(0,75-5,45)
Rated current consumpt. cooling (A)
5,40
7,60
8,30
10,70
17.50
19.72
Power consumption heating
nom.(min.-max.) (kW)
1,15
(0,20-2,10)
1,54
(0,28-2,30)
1,78
(0,35-2,80)
2,27
(0,56-3,40)
3,15
(0,53-3,85)
3,75
(0,60-4,35)
Rated current consumpt. heating (A)
5,00
6,70
7,80
9,80
13.96
16.62
Max. power consumption (kW)
2,10
2,30
2,80
3,40
5.30
5.60
Max. current consumption (A)
10,00
11,00
13,00
16,00
23.5
24.5
Power supply (V~,Hz,Phases)
220-240,50,1
220-240,50,1
220-240,50,1
220-240,50,1
220-240,50,1
220-240,50,1
Sound pressure dB(A)
54
55
56
58
61
61
Sound power dB(A)
61
62
65
65
68
68
Connection wires (mm)
3x1,5+E
3x1,5+E
3x1,5+E
3x1,5+E
3x1,5+E
3x1,5+E
Power supply wires (mm)
2x2,5+E
2x2,5+E
2x2,5+E
2x4,0+E
2x4,0+E
2x4,0+E
Dimensions width/depth/height (mm)
800/545/315
800/545/315
834/655/328
834/655/328
985/808/395
985/808/395
Weight (kg)
34
36
44
46
74
75
Liquid piping diameter (mm/inch)
2×6,35(1/4)
2×6,35(1/4)
3×6,35(1/4)
3×6,35(1/4)
4×6,35(1/4)
5×6,35(1/4)
Gas piping diameter (mm/inch)
2×9,52(3/8)
2×9,52(3/8)
3×9,52(3/8)
3×9,52(3/8)
4×9,52(3/8)
5×9,52(3/8)
Refrigerant type (GWP)*
R32 (675)
Refrigerant quantity (kg)
1.07
1.10
1.25
1.20
2.30
2.30
tCO2 eq.
0,722
0,743
0,844
0,810
1,552
1,552
Meters of precharge gas quantity (m)
15
15
22,5
22,5
30
37,5
Additional charge (g/m)
20
20
20
20
20
20
*These Air Conditioners contain fluorinated greenhouse gases covered by Kyoto protocol.
8

3.2. INDOOR UNITS
WALL
JSGNW20
JSGNW25
JSGNW35
JSGNW50
Cooling capacity nom.(min.-max.) (kW)
2,05 (1,13-2,70)
2,58 (0,50-3,10)
3,50 (0,80-3,60)
5,40 (1,20-5,60)
Heating capacity nom.(min.-max.) (kW)
2,15 (0,98-2,50)
2,70 (0,50-3,30)
3,50 (1,00-3,80)
5,80 (1,20-6,00)
Air flow volume (m3/h)
600
600
600
900
Sound pressure dB(A) min/max
40
42
42
46
Sound power dB(A)
51
53
52
58
Dimensions width/height/depth (mm)
792/292/201
792/292/201
792/292/201
940/316/224
Weight (kg)
8
8
8
12
Liquid piping diameter (inch/mm)
1/4"/6,35
1/4"/6,35
1/4"/6,35
1/4"/6,35
Gas piping diameter (inch/mm)
3/8"/9,52
3/8"/9,52
3/8"/9,52
1/2"/12,7
WALL
LSGNW20
LSGNW25
LSGNW35
LSGNW50
Cooling capacity nom.(min.-max.) (kW)
2,05(1,13-2,70)
2,55(1,00-3,30)
3,60(1,20-3,80)
5,30(1,90-5,50)
Heating capacity nom.(min.-max.) (kW)
2,15(0,98-2,50)
2,65(1,10-3,30)
3,70(1,00-3,80)
5,40(1,40-5,60)
Air flow volume (m3/h)
650
650
650
1000
Sound pressure dB(A) min/max
40
41
42
48
Sound power dB(A)
51
53
53
58
Dimensions width/height/depth (mm)
800/300/198
800/300/198
800/300/198
970/315/235
Weight (kg)
9
9
9
12.5
Liquid piping diameter (inch/mm)
1/4"/6,35
1/4"/6,35
1/4"/6,35
1/4"/6,35
Gas piping diameter (inch/mm)
3/8"/9,52
3/8"/9,52
3/8"/9,52
1/2"/12,7

DUCT
LSGND25-XM
LSGND35-XM
LSGND50-XM
Cooling capacity nom.(min.-max.) (kW)
2,60 (1,50-3,55)
3,60 (1,71-3,85)
5,10 (2,50-5,80)
Heating capacity nom.(min.-max.) (kW)
2,90 (1,70-3,65)
4,00 (1,90-3,92)
5,80 (2,84-6,40)
Air flow volume (m3/h) H/M/L
600/450/380
680/560/450
860/660/600
Sound pressure dB(A) H/M/L
35/31/28
38/34/31
42/38/36
Sound power dB(A)
53
53
55
Nominal available static pressure (Pa)
10
10
10
Dimensions width/height/depth (mm)
700x200x470
700x200x470
1000x200x470
Weight (kg)
18,5
18,5
24
Liquid piping diameter (inch/mm)
1/4"/6,35
1/4"/6,35
1/4"/6,35
Gas piping diameter (inch/mm)
1/2"/12,7
1/2"/12,7
1/2"/12,7
CASSETTE
LSGNK25-XM
LSGNK35-XM
LSGNK50-XM
Body name
LSGBK25-XM
LSGBK35-XM
LSGBK50-XM
Panel name
PKR50
PKR50
PKR50
Cooling capacity nom.(min.-max.) (kW)
2,80 (1,50-3,55)
3,60 (1,70-3,70)
5,00 (2,50-5,60)
Heating capacity nom.(min.-max.) (kW)
3,00 (1,60-3,81)
3,90 (2,03-4,42)
5,60 (3,03-7,03)
Air flow volume (m3/h) H/M/L
700/600/530
700/600/530
700/600/530
Sound pressure dB(A) H/M/L
45/41/35
45/41/35
45/41/35
Sound power dB(A)
56
56
56
Body dimensions width/height/depth (mm)
570x570x260
570x570x260
570x570x260
Panel dimensions width/height/depth (mm)
650x650x55
650x650x55
650x650x55
Body weight (kg)
18
18
18
Panel weight (kg)
2,2
2,2
2,2
Liquid piping diameter (inch/mm)
1/4"/6,35
1/4"/6,35
1/4"/6,35
Gas piping diameter (inch/mm)
1/2"/12,7
1/2"/12,7
1/2"/12,7
FLOOR/CEILING
LSGNC25-XM
LSGNC35-XM
LSGNC50-XM
Cooling capacity nom.(min.-max.) (kW)
2,80 (1,50-3,55)
3,60 (1,70-3,70)
5,30 (2,50-5,60)
Heating capacity nom.(min.-max.) (kW)
3,00 (1,60-3,81)
3,90 (2,03-4,42)
5,80 (3,03-7,03)
Air flow volume (m3/h) H/M/L
750/600/500
750/600/500
850/700/600
Sound pressure dB(A) H/M/L
39/36/30
39/36/30
45/42/40
Sound power dB(A)
55
55
59
Dimensions width/height/depth (mm)
929x660x205
929x660x205
929x660x205
Weight (kg)
26,0
26,0
26,0
Liquid piping diameter (inch/mm)
1/4"/6,35
1/4"/6,35
1/4"/6,35
Gas piping diameter (inch/mm)
1/2"/12,7
1/2"/12,7
1/2"/12,7
9

AVAILABLE STATIC PRESSURE DIAGRAMS FOR DUCT UNIT
LSGND25-XM
LSGND35-XM
LSGND50-XM
10

 N.B.
In case of gas pipe diameter of 12,7mm (1/2”) it is needed to use the following adaptor:
DUAL SPLIT
LSGT50-2M
1 unit
2 units
20
20+20
25+25
25
20+25
25+35
35
20+35
35+35
DUAL SPLIT
LSGT40-2M
1 unit
2 units
20
20+20
25+25
25
20+25
25+35
35
20+35
-
TRIAL SPLIT
LSGT60-3M
1 unit
2 units
3 units
20
20+20
20+20+20
25
20+25
20+20+25
35
20+35
20+20+35
50
20+50
20+25+25
-
25+25
20+25+35
-
25+35
25+25+25
-
25+50
25+25+35
-
35+35
-
TRIAL SPLIT
LSGT70-3M
1 unit
2 units
3 units
20
20+20
20+20+20
25
20+25
20+20+25
35
20+35
20+20+35
50
20+50
20+20+50
-
25+25
20+25+25
-
25+35
20+25+35
-
25+50
20+35+35
-
35+35
25+25+25
-
35+50
25+25+35
-
-
25+35+35
4. POSSIBLE COMBINATIONS
11

QUADRI SPLIT
LSGT100-4M
1 unit
2 units
3 units
4 units
20
20+20
20+20+20
20+20+20+20
25
20+25
20+20+25
20+20+20+25
35
20+35
20+20+35
20+20+20+35
50
20+50
20+20+50
20+20+20+50
-
25+25
20+25+25
20+20+25+25
-
25+35
20+25+35
20+20+25+35
-
25+50
20+25+50
20+20+25+50
-
35+35
20+35+35
20+20+35+35
-
35+50
20+35+50
20+20+35+50
-
50+50
20+50+50
20+25+25+25
-
-
25+25+25
20+25+25+35
-
-
25+25+35
20+25+25+50
-
-
25+25+50
20+25+35+35
-
-
25+35+35
20+25+35+50
-
-
25+35+50
20+35+35+35
-
-
25+50+50
20+35+35+50
-
-
35+35+35
25+25+25+25
-
-
35+35+50
25+25+25+35
-
-
-
25+25+25+50
-
-
-
25+25+35+35
-
-
-
25+25+35+50
-
-
-
25+35+35+35
-
-
-
35+35+35+35
PENTA SPLIT
LSGT125-5M
1 unit
2 units
3 units
4 units
5 units
20
20+20
20+20+20
20+20+20+20
20+20+20+20+20
25
20+25
20+20+25
20+20+20+25
20+20+20+20+25
35
20+35
20+20+35
20+20+20+35
20+20+20+20+35
50
20+50
20+20+50
20+20+20+50
20+20+20+20+50
-
25+25
20+25+25
20+20+25+25
20+20+20+25+25
-
25+35
20+25+35
20+20+25+35
20+20+20+25+35
-
25+50
20+25+50
20+20+25+50
20+20+20+25+50
-
35+35
20+35+35
20+20+35+35
20+20+20+35+35
-
35+50
20+35+50
20+20+35+50
20+20+20+25+50
-
50+50
20+50+50
20+20+50+50
20+20+25+25+25
-
-
25+25+25
20+25+25+25
20+20+25+25+35
-
-
25+25+35
20+25+25+35
20+20+25+25+50
-
-
25+25+50
20+25+25+50
20+20+25+35+35
-
-
25+35+35
20+25+35+35
20+20+25+35+50
-
-
25+35+50
20+25+35+50
20+20+35+35+35
-
-
25+50+50
20+35+35+35
20+20+35+35+50
-
-
35+35+35
20+35+35+50
20+25+25+25+25
-
-
35+35+50
25+25+25+25
20+25+25+25+35
-
-
35+50+50
25+25+25+35
20+25+25+35+35
-
-
50+50+50
25+25+25+50
20+25+25+35+50
-
-
-
25+25+35+35
20+25+35+35+35
-
-
-
25+25+35+50
20+35+35+35+35
-
-
-
25+25+50+50
25+25+25+25+25
-
-
-
25+35+35+35
25+25+25+25+35
-
-
-
25+35+35+50
25+25+25+25+50
-
-
-
35+35+35+35
25+25+25+35+35
-
-
-
35+35+35+50
25+25+35+35+35
12

5.1. INSTALLING THE OUTDOOR UNIT
- Make sure that the outdoor unit is fastened securely toprevent strong wind.
- Install the unit in accordance with the information contained in the table below.
- lf installing in marine environments or in locations that are very high in relation to the
ground floor and/or in the presence of strong winds, use a locking plate and fit it
against the wall so that the compressor can operateproperly.
- lf installing in a normal location, the structure of the support base must be made of
concrete or material with equivalent strength and have necessary support ability.
Alternatively, adopt by all the support measures needed to prevent the unit from
vibrating.
- lf you decide to protect the outdoor unit from rain and direct sunlight with a special
canopy, be careful not to hinder heat radiation by thecompressor.
- Do not grow plants or raise animals in the vicinity of the compressor because the
heat could affect normalgrowth.
- Make sure there is a suitable distance from ceilings, walls, furniture and other
obstacles.
- Secure the unit away from heat sources and/or flammablegases.
- The installation base and support frame must be adequate and secure. The machine
must normally be installed on a flatsurface.
Installation space
Please be sure to meet the following installation space requirements when selecting the
installation site:
The following figures show the right and the wrong installations:
Wrong
Installation
Right
Installation
5. INSTALLATION
A>100mm ; B>2000mm ; C>300mm ; D>300mm
13

Location of the hosting bolt
Connecting the piping
Wrap all the pipes, the drainage pipe and the electrical cables from the top to the bottom.
Wrap the pipes with tape along the route and secure them to the wall with the special clips.
These steps only concern cases where the outdoor unit is installed below the indoor one.
- lf you want to add additional water drainage, keep
at a certain distance from the ground and from the
surface of the water. Do not immerse the pipe(s) in
thewater.
- Secure the pipe(s) to the wall so they are not
affected by thewind.
- Wrap the pipes and electrical cables well from
bottom totop.
- Wrap the pipes and shape them, especially around
corners to prevent water from infiltrating the home.
- Use clamps or other accessories to secure the
pipes to thewall.
MODEL
DIMENSIONS
A
B
LSGT40-2M
800x545x315
545
315
LSGT50-2M
800x545x315
545
315
LSGT60-3M
834x655x328
540
335
LSGT70-3M
834x655x328
540
335
LSGT100-4M
985x805x395
675
410
LSGT125-5M
985x805x395
675
410
14

Length of refrigerant connections
Note: All the requirements below should be met at the same time:
LSGT40-2M
LSGT50-2M
LSGT60-3M
LSGT70-3M
LSGT100-4M
LSGT125-5M
Maximum piping
length to each IDU
L1,L2,L3,L4,L5 (m)
25
25
30
30
35
35
Maximum total piping
length to all IDU units
L1+L2+L3+L4+L5 (m)
40
40
60
60
80
80
Maximum height
between ODU & IDU
H1,H2,H3,H4,H5 (m)
15
15
15
15
15
15
Maximum height
between IDUs
H (m)
10
10
10
10
10
10
Meters of pre-charge
P (m)
15
15
22,5
22,5
30
37,5
Refrigerant adjustment: lf total pipe length exceeds P, additional refrigerant (R32) charge is
required. (The outdoor unit is charged with refrigerant for total pipe length up to P meters).
Pipe length
≤P m
No additional charge required
>P m
An additional charge required:
20 g/m x (refrigerant piping length (m) - P)
15

5.2. INSTALLING THE INDOOR UNIT
- Consider the distribution of air from the indoor unit to the home and select a suitable
position in order to achieve a uniform air temperature in the place of installation.
- Make sure that there are no sources of heat and/or steamnearby.
- Maintain good aircirculation.
- Consider adopting measures to reducenoise.
- Do not install the unit near doors and/orwindows.
5.2.1. WALL [LSGNW(20/25/35/50) e JSGNW(20/25/35/50)]
Installation space
Please be sure to meet the following installation space requirements when selecting the
installation site:
• Consider the distribution of air from the indoor unit to the home and select a
suitable position in order to achieve a uniform air temperature in the place of
installation.
• Make sure that there are no sources of heat and/or steam nearby.
• Maintain good air circulation.
• Consider adopting measures to reduce noise.
• Do not install the unit near doors and/or windows.
• Make sure that the indoor unit is installed at a distance of not less than 15 cm from
the roof and side walls soas to ensure the air intake from the environment.
• Install the indoor unit at least 2.3 meters from the floor.
Installing the indoor unit
- First drill the wall and make sure it is solid and suitable to support 20kg.
- Using suitable crosshead screwdrivers, secure the support bracket to thewall.
- Use a spirit level to make sure that the support stays horizontal and is perpendicular
to the vertical direction. If not there may be water leakage from the indoor unit when
the air conditioner is operating in coolingmode.
- It is possible to realize the pipe connection on Baxi Astra Indoor Unit by simply
removing the below cover panel in the inferior part of the unit
16

Installing the connections between the two units
- Drill a hole 70 mm in diameter on the left side (rear view) or right side (front view) with
a slight downwardslope.
- Use adhesive tape to hold the indoor unit fitting in place. Then wrap the connection
with electrical tape to preventcondensation.
- Secure the refrigeration pipes, the electrical cables and the drainage pipe together
using plastic cableties.
- Set out the pipes and cables as shown in thefigure:
- Hang the indoor unit on the support using the upper tabs. Make sure that the indoor
unit is in the middle.
- Position and push the indoor unit onto the mounting plate until the hooks attach firmly
into the guides and you hear them "click'' intoplace.
17

Installation with side connections
- lt is also possible to install the indoor units using the existing side
pre-shearing.
- Please note that the wiring, the drainage, and the refrigerant
connections are fully suited for connection on either side of the unit.
- Even when installing with feedthrough connections, wrap up all the
connections to prevent condensationproblems.
Drainage pipe
- Bear in mind that water drainage takes place due togravity.
- Connect the drainage pipe to the thermally-isolated plastic pipe from the right
side of the indoor unit (rearview).
- Make sure the drainage pipe comes out from the indoor unit with a negative
slope (downwards). The highest point of the outlet connections must not
exceed the position of the tank.
N.B.
- The drainage pipe can be connected to either connector 1 or2.
- lf it is necessary to change the side of the drainage pipe, remove the rubber
cap on the connector and secure it on the unused side using ascrewdriver.
Checking water drainage
Remove the front panel from the unit according to
the following instructions:
a) Open the front fin on the indoor unit (rotate
it downwards)
b) As shown in the figures below, remove the two
protections from the front panel, then remove the two
fixing screws.
c) Pull the panel towards you to removeit.
Checking water drainage
a) Place a container beneath the drainagechannel.
b) Check that drainage passes through the appropriate
hale.
18

5.2.2. DUCT [LSGND(25/35/50)-XM]
Installation space
Please be sure to meet the following installation space requirements when selecting the
installation site:
Location of the hosting bolt
Model
A
B
C
D
E
F
LSGND(25/35)-XM
532
700
684
734
383
470
LSGND50-XM
832
1000
977
1048
383
470
Duct installation
There are two installation methods of duct, as follows:
19