Haier AV08IMVEVA User manual

No. 0150525031
Installation Manual for Outdoor Unit
AV08IMVEVA
AV10IMVEVA
AV12IMVEVA
AV14IMVEVA
AV16IMVEVA
AV18IMVEVA
AV20IMVEVA
AV22IMVEVA
AV24IMVEVA
AV26IMVEVA
• Please read this manual carefully before using.
• Keep this operation manual for future reference.
Original instructions

Contents
Safety ................................................................................................................................................................................1
Installation instruction........................................................................................................................................................3
Installation procedure ......................................................................................................................................................13
Installation procedure ......................................................................................................................................................14
Electric wiring and the application ...................................................................................................................................23
Electric wiring and the application ...................................................................................................................................24
Failure code.....................................................................................................................................................................35
Trial operation and the performance ...............................................................................................................................40
MRV Ⅴadopts "simultaneous control" type, all indoors should be heating or cooling simultaneously.
To protect compressor, before startup, the unit should be electried for over 12 hours. If the unit is not used for a long
time, please cut off the power to save energy, or the unit will consume the power.
Operation condition:
To use the air conditioner normally, please perform as to the below conditions.
Operating Range of Air Conditioner
Cooling
Dry
Indoor Max. DB:32°C WB:23°C
Min. DB:18°C WB:14°C
Outdoor Max. DB:50°C WB:26°C
Min. DB:-5°C
Heating
Indoor Max. DB:27°C
Min. DB:15°C
Outdoor Max. DB:27°C WB:15°C
Min. DB:-20°C
Warning
• 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.
• 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.
• This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or
mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning
use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by children without supervision.
• The appliances are not intended to be operated by means of an external timer or separate remote-control system.
• Keep the appliance and its cord out of reach of children less than 8 years.
User Manual

1
WARNING
• If the air conditioner is transferred to the others, this manual should be tranferred together.
• Before installation, please read "Safety precaution" carefully to conrm the correct installation.
• The mentioned precaustion includes " WARNING" and " CAUTION". The precausion caused death or heavy injury
for faulty installation will be listed in " WARNING". Even the cautions listed in " CAUTION" also may cause serious
accident. So both of them are related to the safety, and should be executed severely.
• After installation, perform a trial and conrm everything normal, then introduce the operation manual to the user.
Besides, put the manual to the user and ask them to preserve it carefully.
• The installation or the maintenance should be performed by the authorized agency. Or the non-specialized operation will
cause water leakage, electric shock or re etc accidents.
• The installation should be executed as per the manual, or the faulty installation will cause water leakage, electric shock
or re etc accidents.
• Please install the unit at the space which can bear the weight. Or the unit will drop down to cause the human injury.
• The installation should defend against the typhoon, and the earthquake etc. Abnormal installation will cause the unit fall
down.
• Use the correct cable and make reliable earthing. Fix the terminal rmly and the loose connection will cause heating or
re etc accident.
• The wiring should be in shape and can not be raised. Be earthed rmly and can not be clipped by the electric box cover
or the other plate. The incorrect installation will cause heating or re.
• When setting or transferring the unit, there should not be other air into the refrigerant system except for R410A. The gas
mixture will cause the abnormal high pressure which will cause break or human injury etc accidents.
• When installation, please use the accessories with the unit or the special parts, or it will cause water leakage, electric
shock, re, refrigerant leakage etc accidents.
• Don't lead the water drainage pipe into the drainage groove with the poisonous gas, such as sulphur. Or the poisonous
gas will enter indoor.
• In installation or after installation, please conrm if there is refriegerant leakage, please take measures for ventilation.
The refrigerant will cause poisonous gas as meeting re.
• Don't install the unit at the place where there may be ammable gas leakage. In case the gas leaks and gather around
the unit, it will cause re.
• The drainage pipe should be installed as per the manual to conrm the uent drainage. Also take measures for heat
insulation against dew drop. Incorrect water pipe installation will cause water leakage even and make the things wet.
• For the liquid pipe and the gas pipe, take measures for heat insulation too. If there is no heat insulation, the dew drop
will wet the things.
Safety

2
CAUTION
R-410A specied tools Remarks
1Gauge manifold Range: HP ＞4.5MPa, LP ＞2MPa
2Charge hose Pressure: HP: 5.3MPa, LP: 3.5MPa
3Electronic balance for charging R410A Can not use the measurable charging tank
4Torque spanner
5Flare tool
6Copper pipe gauge for adjusting projecting margin
7Vacuum pump adapter Must be with reverse stop valve
8Leakage detector Can not use freon leakage detector, but the He detector
• Execute earthing for the unit. But the earthing wire can not be connected to the gas pipe, water pipe, lightening rod or
the telephone earthing wire. Improper earthing will cause electric shock.
• Don't install the unit at the place where leaks the ammable gas. Or it will cause re.
• Execute the water drainage pipe according to the manual, improper installation will cause water leakage to wet the
family things.
• The outdoor fan can not face to the ower or the other vegetable, or the blowing gas will make the ower dried up.
• Please ensure the maintenance room, if not, it will cause the maintenance person damaged.
• When installing the unit on the roof or the other high place, to prevent the person falling down, please set the xed
ladder and the railing at the passage.
• Use the two-end spanner, and fasten the nut at proper torque. Don't fasten the nut excessively against the ared setion
broken. Or it will cause refrigerant leakage and lack of oxygen.
• Take measures for heat insulation to the refrigerant pipe, or there will be water leakage or dew drop to wet the family
things.
• After nishing the refrigerant pipe, make leakage test by charging the nitrogen. In case the refrigerant leaks in a small
room and exceeds the limited concentration, it will cause lack of oxygen.
• Don't use the other refrigerant except for R410A. The R410A pressure is 1.6 times higher than R22 pressure. The
refrigerant R410A tank is marked with pink sign.
• Against charging different refrigerant, we changed the stop valve diameter of the R410A unit. To enhance the
compression consistance, we also changed the ared pipe dimension. Prepare the R410A specially tools according to
the below table.
• When charging refrigerant, the refrigerant must be taken out as liquid state from the tank.
• When installing indoor unit, outdoor, power cable and connecting wire, leave them at least 1m away from the TV set or
the radio against interference for the image or the noise.
• In the room with uorescent lamp (reverse phase or rapid start type), the remote signal may be not reach the pre-set
distance. The farther that indoor is away from uorescent lamp, the better.
• When loaded into a refrigerant, be sure to take it out of the tank.
• Installation of indoor, outdoor, power lines and connections must be at least 1m away from the TV or radio to avoid
image interference or noise.
• In a room equipped with uorescent lamps (RP or fast start), the remote control signal transmission distance may not
reach a predetermined value. The farther away the indoor machine is, the better it is.
• The tightening torque of the stop valve refer to the following table
Safety
Operating valve size
(mm)
Fastening torque
(N.m)
Fastening angle
(°)
Recommended tool length
(mm)
Ø6.35 14~18 45~60 150
Ø9.52 34~42 30~45 200
Ø12.7 49~61 30~45 250
Ø15.88 68~82 15~20 300
Ø19.05 84~98 15~20 300

3
In installation, please check specially the below items:
• If the connected units quantity and the total capacity is in the allowable range?
• If the refrigerant pipe length is in the limited range?
• If the pipe size is proper? And if the pipe is installed horizontally?
• If the branch pipe is installed horinzontally or vertically?
• If the additional refrigerant is counted correctly and weighed by the standard balance?
• If there is refrigerant leakage?
• If all the indoor power supplies can be on/off simultaneously?
• If the power voltage is in compliance with the data marked on the rating label?
• If the address of indoors and outdoors has been set?
Before installation
1) Before installation, check if the model, power supply, pipe, wires and parts purchased respectively are correct.
2) Check if the indoors and outdoors can be combined as the following.
Installation instruction
Indoor
Gather pipe
Combined
capacity
range
HP Capacity
(W) Combination Type
Allow the most
connected
indoor units
The most
recommended
indoor unit
number
Total indoor
capacity(100W)
8 25200 single 15 8 126~328 -
50%~130%
10 28000 single 17 10 140~364 -
12 33500 single 20 11 168~436 -
14 40000 single 24 13 200~520 -
16 45000 single 27 15 225~585 -
18 50400 single 30 17 252~655 -
20 56000 single 33 18 280~728 -
22 61500 single 36 20 308~800 -
24 68000 single 40 22 340~884 -
26 73500 single 43 24 368~956 -
28 80000 combination(14+14) 47 26 400~1040 -
30 85000 combination(14+16) 50 28 425~1105
HZG-20B
32 90000 combination(16+16) 53 30 450~1170
34 95400 combination(16+18) 56 31 477~1240
36 100800 combination(18+18) 59 33 504~1310
38 106400 combination(18+20) 63 35 532~1383
40 112000 combination(20+20) 66 38 560~1456
42 117500 combination(20+22) 69 42 588~1528
44 123000 combination(22+22) 72 44 620~1612
46 129500 combination(22+24) 76 46 648~1684
48 136000 combination(24+24) 80 49 680~1768
50 141500 combination(24+26) 83 51 707~1840
52 147000 combination(26+26) 86 52 735~1911
54 151200 combination(18+18+18) 89 54 756~1966
56 156800 combination(18+18+20) 92 59 784~2038

4
Indoor
Gather pipe
Combined
capacity
range
HP Capacity
(W) Combination Type
Allow the most
connected
indoor units
The most
recommended
indoor unit
number
Total indoor
capacity(100W)
58 162400 combination(18+20+20) 96 61 812~2111
HZG-30B
50%~130%
60 168000 combination(20+20+20) 99 63 840~2184
62 173500 combination(20+20+22) 100 64 868~2256
64 179000 combination(20+22+22) 100 64 895~2327
66 184500 combination(22+22+22) 100 64 922~2398
68 191000 combination(22+22+24) 100 70 955~2483
70 197500 combination(22+24+24) 100 70 988~2568
72 204000 combination(24+24+24) 100 70 1020~2652
74 209500 combination(24+24+26) 100 70 1048~2723
76 215000 combination(24+26+26) 100 70 1075~2795
78 220500 combination(26+26+26) 100 76 1103~2867
80 224000 combination(20+20+20+20) 100 76 1120~2912
82 229500 combination(20+20+20+22) 100 76 1148~2984
84 235000 combination(20+20+22+22) 100 76 1175~3055
86 240500 combination(20+22+22+22) 100 76 1203~3127
HZG-20B
HZG-30B
88 246000 combination(22+22+22+22) 100 76 1230~3198
90 252500 combination(22+22+22+24) 100 85 1263~3283
92 259000 combination(22+22+24+24) 100 85 1295~3367
94 265500 combination(22+24+24+24) 100 85 1328~3452
96 272000 combination(24+24+24+24) 100 85 1360~3536
98 277500 combination(24+24+24+26) 100 85 1388~3608
100 283000 combination(24+24+26+26) 100 85 1415~3679
102 288500 combination(24+26+26+26) 100 89 1443~3751
104 294000 combination(26+26+26+26) 100 89 1470~3822
Installation instruction
Note:
a. If all the indoor units operate at the same time in one system, the total indoor units capacity should be less than or
equal to the total outdoor units capacity. Otherwise,overloading operations may occur in bad operating condition or
some special conditions. If all the indoor units don't operate at the same time in one system,the total indoor units
capacity should be no more than 130% of the total outdoor units capacity.
c. If the system operates in high heat load or cold area (Ambient Temperature below -10°C), the total indoor units capacity
should be less than the total outdoor units capacity.
d. To choose combinations' wires and air switches according to the Max. operating current of the combinations.
Installation place selection
Air-conditioner can't be installed in the
place with inammable gas. Or it will
cause re hazard.
The unit should be installed at the
place with good ventilation. No
obstacle at the air inlet/outlet. And no
strong wind blows the unit.
The installation space refers to the
latter info.
The unit should be installed at the
strong enough place. Or it will cause
vibration and noise.

5
• The unit is better not be installed
at the below places, or it will cause
damage.
• The place where there is corrosive
gas (spa area etc).
• The place blowing salty air (seaside
etc).
• Exsits the strong coal smoke.
• The place with high humidity.
• The place where there is device
emitting Hertzian waves.
• The place where voltage changes
greatly.
• The place where the water can ow
uently.
• The place where no other heat
source will affect the unit.
• Pay attention to the snow against
clogging the outdoor.
• In installation, install the anti-
vibration rubber between the unit
and the bracket.
The unit should be installed at the
place where the cold/hot air or
noise will not interfere the neighbours.
Transportation
• In transportation, please don't dismantle the packaging, and move the unit to the installation location as closely as
possible.
• Don't hang the unit only at two points. When hanging the unit, don't sit on the unit. The unit should be upright. When
removing the unit with the forklift, put the fork into the special hole at bottom of the unit. When being hanged, the rope
should be 4 pieces of steel cable with over 8mm diameter. Put the cushion at the contact section between steel cable
and the unit against the distortion or damage.
steel cable
cushion
Forklift hole
distance
480mm
Hoisting hole diameter Ø40mm, distance730mm
AV08~16IMVEVA
Forklift hole
distance
480mm
Hoisting hole diameter Ø40mm, distance1042mm
AV18~26IMVEVA
Installation instruction

6
Outline and installation dimensions
AV08~16IMVEVA
AV18~26IMVEVA
Fixed hole distance
800mm
Drain hole
Fixed hole distance
755mm
980mm
Exhaust duct
connection position
1690mm
70mm
Signal wire hole diameter Ø25
(Use attachment rubber plug for
Line protection）Refrigerant pipe outlet（two pipe)
Refrigerant pipe outlet (Three pipe)
Power line outlet (According to the
choice of the power line diameter
size. The export, use the attached
wire into the sheath)
Signal line and
power line outlet
Line protection
750mm
Fixed hole distance
1000mm
Drain hole
Fixed hole distance
755mm
1410mm
1690mm
750mm
70mm
Exhaust duct
connection position
Refrigerant pipe outlet (Three pipe)
Power line outlet (According to the
choice of the power line diameter
size. The export, use the attached
wire into the sheath)
Signal wire hole diameter
Ø25 (Use attachment
rubber plug for Line
protection）
Refrigerant pipe outlet（two pipe)
Signal line and
power line outlet
Line protection
Installation instruction

7
Outdoor unit installation
Standard accessories
Please check the attachment is complete, please be sure to use.
No. denition Graphic Quantity Remarks Place position
1Installation
instruction 1Accessory bag
4Rubber plug 1Signal line protection Accessory bag
5sheath 1Power line protection Accessory bag
6Reducing pipe
(10/12HP) (14HP)
1Reducing pipe Accessory bag
7wiring harness 4Gas liquid pipe insulation binding Accessory bag
8Wrench 1Remove service panel
The outdoor
machine foot
beam
1. Choose a place that can carry the weight of the unit to install and x, so that the unit will not shake or fall. The unit shall
be installed in a at area (below 1/100).
2. Do not install the unit in the areas where there may be ammable, explosive, corrosive gas leakage.
3. Indoor and outdoor machines should be close to each other as much as possible to reduce the length of the refrigerant
pipeline and the number of bends.
4. The installation should be to ensure that units from the sun and rain, dust, typhoon, earthquake proof place. In the area
of snow, the machine should be installed in the frame or under the snow cover, so as to avoid the machine snow. See
Figure 1
5. Make sure that there is enough room for maintenance
6. Measures should be taken to avoid contact with children
7. The refrigerant pipe by the unit below should be used when the overhead, overhead part height 200mm above. See
Figure 2
Snow cover (customer buy)
Wind shield (customer buy)
Seasonal wind
The base height should be
considered the maximum
snowfall locally, Prevent snow
height cxceeds the unit angle. Please use M12 xed ancher bolts, each machine 4, and use
shock absorbers or shock absorbers to reduce noise
Aerial part
height above
200mm
Figure 2Figure 1
Installation instruction

8
Combination installation dimensions
1. Single installation
• There should be no obstacles in 2000mm above the top of outdoor unit;
• Obstacles around outdoor should be less than 900mm to the bottom of unit.
• When multiple modules are installed, the outdoor should be in ranked as the capacity, the larger capacity is closer to the
main pipe of gather pipe.
˃900mm
˃2000mm
Air outlet
˃1000mm
˃300mm
˃300mm
˃300mm
Front
Back
Left
Right
˃300mm ˃200mm
˃1000mm ˃300mm
Unit can be installed in the same or opposite direction
2. combination installation
Installation instruction

9
˃300mm
˃300mm
˃1000mm
˃200mm
Place with air inlet hole
Notes:
a. Fan speed Vs at air inlet is 1.5m/s or below.
b. Air outlet height HD=H-h and below 1m.
˃300mm
˃300mm
˃1000mm
˃200mm
H
HD
h
External air
duct
˃1000mm
3. Wall higher than the outdoor condenser
Installation instruction

10
Place without air inlet hole
Notes:
a. Set a 500~1000mm bracket.
b. Air outlet height HD=H-h and below 1m.
˃300mm
˃300mm
˃1000mm
˃200mm
H
HD
h
External air duct
500~1000
4. The outdoor machine installation should consider the impact of seasonal wind, don't let the wind directly into the unit
return air, otherwise it will affect the unit defrosting and related functions
5. Must be arranged to follow the following principles in the exhaust duct
• Install exhaust duct before the machine must be taken out of the wind protection network, otherwise it will affect the
output of the unit, and then lead to the decline in performance, and even cause failure
• Increase the blinds, the unit will affect the air out of the air, reduce performance, and therefore do not recommend the
use of shutters. To use the shutter angle control at 15 degrees below, the distance between the control of 80mm above
• The exhaust duct is only allowed to have one elbow, otherwise it will cause bad operation of the machine
• Please install the soft connection between the unit and the air duct to prevent vibration and noise
• The exhaust air duct of each machine must be installed independently, and the exhaust hood of the machine is
prohibited to be assembled in parallel in any form, otherwise it may cause the failure of the unit.
Installation instruction

11
install snow cover
Snowfall area, please install snow cover, see the right
picture,To be unaffected by the snow, it is important to set
up a high platform, which is calculated according to the
maximum amount of snow in the area. At the same time, the
outdoor external machine defrost setting change to be easy
to frost setting, detailed see the digital tube setting.
Panel disassembly instruction
Please refer to the following gure for the repair board to remove.
Installation instruction
Outlet snow cover
Inlet snow cover
A
B
C
1. Remove the screw with a screwdriver and remove the repair wrench from the bottom of the machine (or use a
self-prepared screwdriver).
Screw
Maintenance
wrench
2. Remove the screw A, B, and C by rotating the wrench in the
direction of the arrow.
3. Along the direction of the arrow, after repair
plate rotating about 40 °, the maintenance
from the xed orice plate on the right side
of card claw, can complete repair plate
disassembly.

12
Installation instruction
Install air ducting
There are no obstacles in the 2000mm above the outdoor unit; When there are obstacles in the outer plane, there must
be a pilot channel, and the wind will be free, the wind will not beshort-circuited, and the external static pressure will be
110Pa. Airway design dimensions are as follows:
Channel size (pattern 1)
Channel size (pattern 2)
AV08~16IMVEVA AV18~26IMVEVA
AThe inner diameter 980 The inner diameter 1410
BThe inner diameter750 The inner diameter 750
C≤10000 ≤10000
DE+750 E+750
E≥300 ≥300
F≥320 ≥320
AV08~16IMVEVA AV18~26IMVEVA
AThe inner diameter 750 The inner diameter 750
BThe inner diameter 980 The inner diameter 1410
C≤10000 ≤10000
DE+980 E+1410
E≥300 ≥300
F≥320 ≥320
A
C
D
E
F
B
A
C
D
E
F
B
Note:
Before installing the wind channel, the unit should be removed from the wind protection network. At the same time, the
outdoor air tube static press is set up to "have static pressure" mode. The above is just an example, the length of the wind
tunnel should be calculated according to the shape of the wind channel.

13
Pipe connection method:
• To ensure the efciency, the pipe should be as short as possible.
• Daub the refrigerant oil on the connector and the are nut.
• When bending the pipe, the bending semi-diameter should be as
large as possible against the pipe being broken or bent.
• When connecting the pipe, aim at the center to thread the nut by
hand and tighten it with the double spanners.
• Fastening torque please refers to "pipe specs and fastening
torque" on page 15.
• Don't let the impurity such as sand, water etc into the pipe.
Antifouling measures refer to Page 13.
Cautions in piping installation:
1. When welding the pipe with hard solder, charge nitrogen into the pipe against oxidation. The pressure gauge should
be set at 0.02MPa.Perform the procedure with nitrogen circulation. Otherwise, the oxide lm in the pipe may clog the
capillary and expansion valve resulting in accident.
2. The refrigerant pipe should be clean. If the water and the other impurity enter the pipe, charge the nitrogen to clean the
pipe. The nitrogen should ow under the pressure of about 0.5MPa and when charging the nitrogen, stop up the end of
the pipe by hand to enhance the pressure in the pipe, then loose the hand (meanwhile stop up the other end).
3. The piping installation should be executed after closing the stop valves.
4. When welding the valve and the pipe, cool down the valve with wet towel.
5. When the connection pipe and the branch pipe need to be cut down, please use the special shears and do not use the
saw.
6. When welding copper pipe, use the phosphor copper welding rod without any welding ux. (welding ux will damage
the piping system. The welding ux containing chlorine will corrode pipe, especially, the welding ux with uorin will
damage refrigeration oil.)
Pipe material and specs selection
1. Please select the refrigerant pipe of the below material.
Material: the phosphoric oxidize seamless copper pipe,
model: C1220T-1/2H (diameter is over 19.05); C1220T-0(diameter is below 15.88).
2. Thickness and specs:
Conrm the pipe thickness and specs according to the pipe selection method(the unit is with R410A, if the pipe over
19.05 is O-type, the pressure preservation will be bad, thus it must be 1/2H type and over the min. thickness.
3. The branch pipe and the gather pipe must be from Haier.
4. When installing the stop valve, refer to the relative operation instruction.
5. The pipe installation should be in the allowable range.
6. The installation of branch pipe and gather pipe should be performed according to the relative manual.
Installation procedure
A. Refrigerant pipe connection
When fastening and loosing the nut,
operate with double spanners, because
only one spanner cannot execute rmly.
If threading the nut as not aiming at the
center, the screw thread will be damaged,
further it will cause leakage.
Spanner
Connector
Nut
Spanner
Anti-fouling measures
First, clean the pipe.
Position Installation period Measures
Outdoor More than 1 month Flat the pipe end
Less than 1 month Flat the pipe end or seal with adhesive tape
Indoor Nothing to do with period

14
Pipe specication
Note:
• If the distance between the unit and the nearest branch ≥ 15m, Pipe "A" should be enlarged:
(1) The capacity of indoor unites ≤ 5.6kW, the gas pipe change to Ø15.88, the liquid pipe change to Ø9.52.
(2) 5.6kW ˂ the capacity of indoor unites ˂ 16.8kW,the gas pipe change to Ø19.05, the liquid pipe change to Ø9.52.
(3) The capacity of indoor unites ≥ 16.8kw,the liquid pipe change to Ø12.7.
• The rst sub-manifold distance from the longest indoor unit piping length ≥ 40 meters:
(1) The rst sub-manifold to the nearest indoor unit main pipe (gas /liquid pipe) must increase a specication.
(2) The distance between the nearest indoor unit distance between the indoor unit ≤ 40 meters.
Indoor (x100W) Gas pipe Liquid pipe
18~28 Ø9.52 Ø6.35
32~56 Ø12.7 Ø6.35
63~160 Ø15.88 Ø9.52
226-300 Ø25.4 Ø9.52
450-600 Ø28.58 Ø12.7
Outdoor Indoor
A
A
A
A
B
B
C
D
D
D
D
E
EC B
B
Gas
pipe
Gas pipe Gas pipe Gas pipe
Liquid pipe Liquid pipe Liquid pipe
Liquid pipe
outdoor gather pipe the rst branch pipe
1. Pipe "A" diameter (between indoor and branch pipe) (depends on indoor pipe)
Note:
AS072 AS092 gas pipe: Ø12.7, AS182 gas pipe/ liquid pipe:
Ø15.88/9.52.
2. Pipe “B” diameter (between branch pipes)
Total indoor capacity after the branch pipe (kW) Gas pipe Liquid pipe
˂14kW According to the pipe A pipe diameter
14kW≤ X ˂16.8kW Ø15.88 Ø9.52
16.8kW≤ X ˂28.0kW Ø19.05 Ø9.52
28.0kW≤ X ˂33.5kW Ø22.22 Ø9.52
33.5kW≤ X ˂45.0kW Ø28.58 Ø12.7
45.0kW≤ X ˂71.0kW Ø28.58 Ø15.88
71.0kW≤ X ˂101.0kW Ø31.8 Ø19.05
101.0kW≤ X ˂158.0kW Ø38.1 Ø19.05
158.0kW≤ X ˂186.0kW Ø41.3 Ø19.05
186.0kW≤ X ˂240.0kW Ø44.5 Ø22.22
240.0kW≤ X ˂275.0kW Ø50.8 Ø25.4
≥275kW Ø54.1 Ø25.4
Installation procedure

15
3. Pipe “c” diameter (main pipe, between outdoor gather pipe and the rst branch pipe)
Outdoor
capacity
(W)
Main pipe Enlarged main pipe
Gas pipe Liquid
pipe Gas pipe Liquid pipe
25200 Ø19.05 Ø9.52 Ø22.22 Ø12.7
28000 Ø22.22 Ø9.52 Ø25.4 Ø12.7
33500 Ø25.4 Ø12.7 Ø28.58 Ø15.88
40000 Ø25.4 Ø12.7 Ø28.58 Ø15.88
45000 Ø28.58 Ø12.7 Ø31.8 Ø15.88
50400 Ø28.58 Ø15.88 Ø31.8 Ø19.05
56000 Ø28.58 Ø15.88 Ø31.8 Ø19.05
61500 Ø28.58 Ø15.88 Ø31.8 Ø19.05
68000 Ø28.58 Ø15.88 Ø31.8 Ø19.05
73500 Ø28.58 Ø15.88 Ø31.8 Ø19.05
80000 Ø28.58 Ø15.88 Ø31.8 Ø19.05
85000 Ø31.8 Ø19.05 Ø38.1 Ø22.22
90000 Ø31.8 Ø19.05 Ø38.1 Ø22.22
95400 Ø31.8 Ø19.05 Ø38.1 Ø22.22
100800 Ø38.1 Ø19.05 Ø38.1 Ø22.22
106400 Ø38.1 Ø19.05 Ø38.1 Ø22.22
112000 Ø38.1 Ø19.05 Ø38.1 Ø22.22
117500 Ø38.1 Ø19.05 Ø38.1 Ø22.22
123000 Ø38.1 Ø19.05 Ø38.1 Ø22.22
129500 Ø38.1 Ø19.05 Ø38.1 Ø22.22
136000 Ø38.1 Ø19.05 Ø38.1 Ø22.22
141500 Ø38.1 Ø19.05 Ø38.1 Ø22.22
147000 Ø38.1 Ø19.05 Ø38.1 Ø22.22
151200 Ø38.1 Ø19.05 Ø41.3 Ø22.22
156800 Ø38.1 Ø19.05 Ø41.3 Ø22.22
Outdoor
capacity
(W)
Main pipe Enlarged main pipe
Gas pipe Liquid
pipe Gas pipe Liquid pipe
162400 Ø41.3 Ø19.05 Ø44.5 Ø22.22
168000 Ø41.3 Ø19.05 Ø44.5 Ø22.22
173500 Ø41.3 Ø19.05 Ø44.5 Ø22.22
179000 Ø41.3 Ø19.05 Ø44.5 Ø22.22
184500 Ø41.3 Ø19.05 Ø44.5 Ø22.22
191000 Ø44.5 Ø22.22 Ø50.8 Ø25.4
197500 Ø44.5 Ø22.22 Ø50.8 Ø25.4
204000 Ø44.5 Ø22.22 Ø50.8 Ø25.4
209500 Ø44.5 Ø22.22 Ø50.8 Ø25.4
215000 Ø44.5 Ø22.22 Ø50.8 Ø25.4
220500 Ø44.5 Ø22.22 Ø50.8 Ø25.4
224000 Ø44.5 Ø22.22 Ø50.8 Ø25.4
229500 Ø44.5 Ø22.22 Ø50.8 Ø25.4
235000 Ø44.5 Ø22.22 Ø50.8 Ø25.4
240500 Ø50.8 Ø25.4 Ø54.1 Ø25.4
246000 Ø50.8 Ø25.4 Ø54.1 Ø25.4
252500 Ø50.8 Ø25.4 Ø54.1 Ø25.4
259000 Ø50.8 Ø25.4 Ø54.1 Ø25.4
265500 Ø50.8 Ø25.4 Ø54.1 Ø25.4
272000 Ø50.8 Ø25.4 Ø54.1 Ø25.4
277500 Ø54.1 Ø25.4 Ø54.1 Ø25.4
283000 Ø54.1 Ø25.4 Ø54.1 Ø25.4
288500 Ø54.1 Ø25.4 Ø54.1 Ø25.4
294000 Ø54.1 Ø25.4 Ø54.1 Ø25.4
Note: When the distance from outdoor to the longest indoor is over 90m, the main pipe should be the enlarged diameter.
Outdoor
Gas pipe Liquid pipe
Remarks
Pipe
diameter
Connection
method
Pipe
diameter
Connection
method
252 Ø19.05 Flared joint Ø9.52
Flared joint
280 Ø22.22
Brazing
Ø9.52 Please use
the attached
connection
pipe
diameter
335 Ø25.4 Ø12.7
400 Ø25.4 Ø12.7
450 Ø28.58 Ø12.7
504 Ø28.58 Ø15.88
560 Ø28.58 Ø15.88
615 Ø28.58 Ø15.88
680 Ø28.58 Ø15.88
735 Ø28.58 Ø15.88
Total outdoor capacity
before gather pipe Gas pipe Liquid pipe
≤78.5kW Ø28.58 Ø15.88
85.0~96.0kW Ø31.8 Ø19.05
101.0~157.0kW Ø38.1 Ø19.05
162.4~185.5kW Ø41.3 Ø19.05
192.0~235.0kW Ø44.5 Ø22.22
240.5~272.0kW Ø50.8 Ø25.4
＞272.0kW Ø54.1 Ø25.4
4. Pipe “D” diameter (between gather pipes) 5. Pipe “e” diameter (between outdoor and the gather pipe)
Installation procedure

16
Allowable piping length and drop between indoor and outdoor
L1
Outdoor
L2 L3
L4
L5
L6
H
outdoor gather pipe
1. L1≤10m; L2≤10m; L3≤10m; L4≤10m; L5≤10m; L6≤10m; L1+L3+L5≤10m.
2. Height difference between outdoors: h≤5m.
3. The piping connecting outdoor unit must be placed horizontally or in accordance with the installation of a certain angle
(level angle less than 15 degrees), connected with a concave not allowed.
4. All piping cannot connect the outdoor unit is higher than the height of the machine outlet (valve interface part).
气管 气管 气管 气管
Proper installatio
Proper installatio Proper installatio
Wrong installation
The lubricating oil will accumulate to the lowest outdoor
unit
1. Pipe length between outdoors
Installation procedure

17
Compressor oil will flow into
the lowest unit
Pipe diameter
D
Bending radius
R
Vertical heigh
H
Ø19.05 ≥31 ≤150
Ø22.22 ≥31 ≤150
Ø25.4 ≥45 ≤150
Ø28.58 ≥45 ≤150
Ø31.8 ≥60 ≤250
Ø38.1 ≥60 ≤350
Ø41.3 ≥80 ≤450
Ø44.5 ≥80 ≤500
Ø50.8 ≥90 ≤500
Ø54.1 ≥90 ≤500
R
H
D
R
H
D
Proper installatio Wrong installation
Oil return bend
The height of the vertical
section see schedule
requirements
In order to avoid damage to the pipe, the size of the return bend is referred to as the drawing.
2. Allowable piping length and drop between indoor and outdoor
Outdoor unit (outdoor unit above)
Indoor machine and outdoor unit of
the Height difference H ≤ 90m
L1
L2
L25 L14
L16
L17
L18
L19
L20
L13
L15 L22
L21 L23 L24
L3
L5
L9
L10 L12
L11
L4
L6
L7
L8
The rst branch pipe to the farthest indoor unit pipe
length≤90m
The outdoor unit to the indoor unit length ≤220m
Indoor unit and indoor unit of
the Height difference ≤ 30m
Installation procedure

18
Pipe length and drop (m) Allowable
value For example Remarks
Total pipe length ≤1100 L1+L2+L3+L4+…+L24
Outdoor to the farthest
indoor length
Actual length ≤220 L1+L2+L3+L6+L8
Equivalent length ≤260
The outdoor unit to the rst branch pipe
length (main piping) ≤130 L1
The rst branch pipe to the farthest indoor
unit pipe length ≤90 L2+L3+L6+L8
The distance between the nearest indoor
unit and the farthest indoor ≤40 L2+L3+L6+L8-L2-L5-L10
Height difference
between
indoor and outdoor
H
Outdoor unit
above ≤90
H
Outdoor unit
under ≤110
Indoor machine maximum drop
h ≤30 h
The indoor unit and the nearest branch
length ≤10 L4\L8\L9\L10\L11\L12\L14\L17\L19\L20\L21\L23\L24
Note:
Equivalent length of pipe is divided equivalent pipe length of 0.5 meters.
Indoor unit as much as possible to install on both sides of the differences between the two sides.
Branch pipe
Branch pipe selection:
Outdoor unit type
The master unit will choose the closest one to the 1st branch pipe.
Note:
1. When connecting the gather pipe and the outdoor, please pay attention to the outdoor pipe dimension.
2. When adjusting the diameter among gather pipes and among the units, please must execute at the branch pipe side.
3. Please install the gather pipe(gas/liqiud side) in horizontal or vertical direction.
4. When welding with hard solder, please must blow nitrogen. If not, a number of oxide will be produced and cause heavy
damage.Besides,to prevent water and dust into the pipe, please make the brim as outer roll.
Total indoor capacity (100W) Model (optional)
less than 335 FQG-B335A
more than 335, less than 506 FQG-B506A
more than 506, less than 730 FQG-B730A
more than 730, less than 1360 FQG-B1350A
more than 1360 FQG-B2040A
Adhesive side
Prepare on eld
Seal the connection and wrap the
heat insulator with adhesive tape
Cut off pipe with the cutter
Floor Floor
Right
Horizontal
Cut off at the middle Wrong
Installation procedure