Carrier 40MBD Series User manual

Installation Instructions
................ ii.................
NOTE: Read the entire instruction manual before starting the
installation.
TABLE OF CONTENTS
PAGE
SAFETYCONSIDERATIONS ......................... 2
SYSTEMREQUIREMENTS .......................... 2
MODEL NUMBER NOMENCLATURE ................. 3
SAFETY PRECAUTIONS ............................ 4
INSTALLATION INFORMATION ..................... 5
ATTACHED FITTINGS ............................. 6
INSPECTING AND HANDLING THE UNIT ............ 7
INDOOR UNIT INSTALLATION ..................... 7
OUTDOOR UNIT INSTALLATION ................... 13
INSTALL THE CONNECTING PIPE .................. 15
REFRIGERANT PIPE ............................... 16
REFRIGERANT PIPE CONNECTION ................. 17
CONNECT THE DRAIN PIPE ........................ 18
FRESH AIR DUCT INSTALLATION .................. 19
CONTROL ........................................ 20
WIRING .......................................... 20
TEST OPERATION ................................. 21
SAFETY PRECAUTIONS ............................ 24
INSTALLATION ACCESSORY ....................... 25
INSTALLATION METHOD .......................... 26

SAFETY CONSIDERATIONS
Installing, starting up, and servicing air-conditioning equipment
can be hazardous due to system pressures, electrical components,
and equipment location (roofs, elevated structures, etc.).
Only trained, qualified installers and service mechanics should
install, start-up, and service this equipment.
Untrained personnel can perform basic maintenance functions such
as cleaning cots. All other operations should be performed by
trained service personnel.
When working on the equipment, observe precautions in the
literature and on tags, stickers, and labels attached to the
equipment.
Follow all safety codes. Wear safety glasses and work gloves. Keep
quenching cloth and fire extinguisher nearby when brazing. Use
care in handling, rigging, and setting bulky equipment.
Read these insWactions thoroughly and follow all warnings or
cautions included in literature and attached to the unit. Consult
local building codes and National Electrical Code (NEC) for
special requirements. Recognize safety information. This is the
safety-alert symbol/_k. Whan you see this symbol on the unit and
in instructions or manuals, be alert to the potential for personal
injury.Understand these signal words: DANGER, WARNING, and
CAUTION. These words are used with the s_ffety-alert symbol.
DANGER identifies the most serious hazards which will result in
severe personal injury or death. WARNING signifies hazards
which could result in personal injury or death. CAUTION is used
to identify unsafe practices which may result in minor personal
injury or product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation, reliability, or
operation.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
Before installing, modifying, or servicing system, main
electrical disconnect switch must be in the OFF
position. There may be more than 1 disconnect switch.
Lock out and tag switch with a suitable warning label.
EXPLOSION HAZARD
Failure to follow this warning could
result in death, serious personal injury,
and/or property damage.
Never use air or gases containing
oxygen for leak testing or operating
refrigerant compressors. Pressurized
mixtures of air or gases containing
oxygen can lead to an explosion.
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Do not bury more than 36 in. (914 ram) of refrigerant pipe
in the ground. If any section of pipe is buried, there must be
a 6 in. (152 ram) vertical rise to the vane connections on
the outdoor units. If more than the recommended length is
buried, refrigerant may migrate to the cooler buried section
during extended periods of system shutdown. This causes
refrigerant slugging and could possibly damage the
compressor at start-up.
SYSTEM REQUIREMENTS
Allow sufficient space for airflow and servicing unit.
Recommended Connection Method for Power and Communi-
...... _ " "O _ "t -
ence_
Power W_mg:
The main power is supplied to the outdoor unit. The field supplied
connecting cable from the outdoor unit to indoor unit consists of
three (3) wires and provides the power for the indoor unit. Two
wires are high voltage AC power and one is a ground wire.
Consult your local building codes and the NEC (National
Electrical Code) or CEC (Canadian Electrieal Code) for special
requirements.
All wires must be sized per NEC or CEC and local codes. Use
Electrical Data table MCA (minimum circuit amps) and MOCP
(maximum over current protection) to correctly size the wires and
the disconnect fuse or breakers respectively.
Per caution note, only copper conductors with a minimum 300 volt
rating and 2/64-inch thick insulation must be used.
Communication Wiring:
A separate shielded copper conductor only, with a minimum 300
volt rating and 2/64-inch thick insulation, must be used as the
communication wire from the outdoor unit to the indoor unit.
To minimize voltage drop of the control wire, use the following
wire size and maximum lengths shown in the chart below:
Wire Size Length
ft (m)
18 AWG 50 (15)
16 AWG 50 (15) to 100 (30)
EQUIPMENT DAMAGE HAZARD
Failure to fo!low this caution may result in equipment
damage or improper operation.
*Wires should be sized based on NEC and local codes.
. Use copper conductors only with a minimum 300 volt
rating and 2/64 inch thick insulation.
2

[] If used as MULTI unit, please refer to the Installation & operation manuals packed with outdoor unit.
Model Numbers
9,000
12,000
18,000
24,000
36,000
48,000
208/230-1
208/230-1
208/230-1
208/230-1
208/230-1
208!230-1
40MBQB09D--3
40MBQB12D--3
40MBQB18D--3
40MBQB24D--3
40MBQB36D--3
40MBQB48D--3
Model number Nemenclature
40 MA Q B 09 B 3
IDigit 12 indicates voltage
1 = 115/I/60
3 = 208-230-!-60Hz
Digits 10, 11 - blank
Digit 9- indoor Fan Coil Unit Type
B = High-Wall
C = Cassette
D = Ducted
F = Console
G = Underceiling
H = High Wall Color Variation
-= Outdoor
Digits 7, 8 indicate the system's capacity in 1000
BTU/Hr
Example: 09 = 9000 BTU/Hr
Maximum Number of fan coil units connected to the outdoor unit
B=1:1
Digit 5 indicates the system's type"
C = Cooling only;
Q = Heat pump
Digits 3 and 4 represent the model
The first two digits indicate the equipment type.
40 = Indoor unit;
38 = Outdoor uni
3

1. SAFETYPRECAUTIONS
• Keep this manual where the operator can easily find them.
• Read this manual closely before starting up the units.
• For safety reasons the operator must read the following
cautions carefully.
• Installation must be performed in accordance with the
requirement of NEC and CEC by authorized personnel only.
(Applicable to the North American area only)
The safty precautions listed here are divided into two categories.
WARNING
If you do not follow these instrutions exactly, the unit may
cause property damage, personal injury or loss of life.
,_ CAUTION
If you do not follow these instrutions exactly, the unit may
cause minor or moderate property damage, personal
injury.
After completing the installation, make sure that the unit operates
properly during the start-up operation. Please instruct the customers
on how to operate the unit and keep it maintained.Also, inform
customers that they should store this installation manual along with
the owner's manual for future reference.
WARNING
Be sure only trained and qualified service personnel to
install, repair or service the equipment.
Improper installation, repair, and maintenance may result in
electric shocks, short-circuit, leaks, fire or other damage to
the equipment.
4
Install according to this installation instructions strictly.
If installation is defective, it will cause water leakage,
electrical shock and fire.
When installing the unit in a small room, take measures
against to keep refrigerant concentration from exceeding
allowable safety limits in the event of refrigerant leakage.
Contact the place of purchase for more information.
Excessive refrigerant in a closed ambient can lead to oxygen
deficiency.
Use the attached accessories parts and specified parts
for installation.
otherwise, it will cause the set to fall, water leakage,
electrical shock and fire.
Install at a strong and firm location which is able to
withstand the set' s weight.
If the strength is not enough or installation is not properly
done, the set will drop to cause injury.
The appliance must be installed 7.5ft /2.3m above floor.
The appliance shall not be installed in the laundry.
Before obtaining access to terminals, all supply circuits
must be disconnected.
The appliance must be positioned so that the plug is
accessible.
The enclosure of the appliance shall be marked by word,
or by symbols, with the direction of the fluid flow.
For electrical work, follow the local national wiring
standard, regulation and this installation instructions. An
independent circuit and single outlet must be used.
If electrical circuit capacity is not enough or defect in
electrical work, it will cause electrical shock or fire.
Use the specified cable and connect tightly and clamp
the cable so that no external force will be acted on the
terminal.
If connection or fixing is not perfect, it will cause heat-up or
fire at the connection.
Wiring routing must be properly arranged so that control
board cover is fixed properly.
If control board cover is not fixed perfectly, it will cause
heat-up at connection point of terminal, fire or electrical
shock.
If the supply cord is damaged, it must be replaced by the
manufacture or its service agent or a similarly qualified
person in order to avoid a hazard.
An all-pole disconnection switch with a contact
separation of at least 0.118in/3mm in all poles should be
connected in fixed wiring.
When carrying out piping connection, take care not to let
air substances go into refrigeration cycle.
Otherwise, it will cause lower capacity, abnormal high
pressure in the refrigeration cycle, explosion and injury.
Do not modify the length of the power supply cord or use
of extension cord, and do not share the single outlet with
other electrical appliances.
Otherwise, it will cause fire or electrical shock.
Carry out the specified installation work after taking into
account strong winds, typhoons or earthquakes.
Improper installation work may result in the equipment falling
and causing accidents.

If the refrigerant leaks during installation, ventilate the
area immediately.
Toxic gas may be produced if the refrigerant comes into the
place contacting with fire.
The temperature of refrigerant circuit will be high, please
keep the interconnection cable away from the copper
tube.
After completing the installation work, check that the
refrigerant does not leak.
Toxic gas may be produced if the refrigerant leaks into the
room and comes into contact with a source of fire, such as a
fan heater, stove or cooker.
The appliance shall be installed in accordance with
national wiring regulations.
Do not operate your air conditioner in a wet room such
as a bathroom or laundry room.
An all-pole disconnection device which has at least 3mm
clearances in all poles , and has a leakage current that
may exceed 10mA, the residual current device (RCD) has
a rated residual operating current not exceeding 30mA,
and disconnection must be incorporated in the fixed
wiring in accordance with the wiring rules.
CAUTION
Ground the air conditioner.
Do not connect the ground wire to gas or water pipes,
lightning rod or a telephone ground wire. Inappropriate
grounding may result in electric shocks.
Be sure to install an earth leakage breaker.
Failure to install an earth leakage breaker may result in
electric shocks.
Connect the outdoor unit wires, then connect the indoor
unit wires.
You are not allowed to connect the air conditioner with the
power supply until the wiring and piping is done.
While following the instructions in this installation
manual, install drain piping in order to ensure proper
drainage and insulate piping in order to prevent
condensation.
Improper drain piping may result in water leakage and
property damage.
Install the indoor and outdoor units, power supply wiring
and connecting wires should be at least 3.28ft/1m away
from televisions or radios in order to prevent image
interference or noise.
Depending on the radio waves, a distance of 3.28ft/1m may
not be sufficient enough to eliminate the noise.
The appliance is not intended for use by young children
or infirm persons without supervision.
Don't install the air conditioner in the following
circumstance:
•There is petroleum nearby.
• There is salty air nearby (near the coast).
• There is caustic gas (sulfide, for example)
in the air (near a hot spring).
The volt vibrates violently (in the factories).
In buses or cabinets.
In kitchen where it is full of oil gas.
There is strong electromagnetic wave.
There are inflammable materials or gas.
There is acid or alkaline liquid evaporating.
Other special conditions.
2. INSTALLATIONINFORMATION
• To install properly, please read this installation manual at
first.
•The air conditioner must be installed by qualified persons.
• When installing the indoor unit or its tubing, please follow
this manual closely.
•If the air conditioner is installed on a metal part of the
building, it must be electrically insulated according to the
relevant standards to electrical appliances.
•When all the installation work is finished, please turn on
the power only after a thorough check.
INSTALLATION ORDER
•Select the location.
•Install the indoor unit.
• Install the outdoor unit.
• Install the connecting pipe.
• Connect the drain pipe.
• Wiring.
• Test operation.
5

3. ATTACHEDFITTINGS
Determine whether the following fittings are in full scope. If there are spare fittings, please restore them carefully.
Table 3-1
1. Soundproof /insulation sheath
2. Binding tape
3.Seal sponge
4.Orifice
5. Drain joint
6. Seal ring
7. Remote controller
(on some models)
® ) 2
1
1
1
(on some models)
1
1
1
8. Frame (on some models)
9.Mounting screw(ST2.9x 10-C-H)
10.Alkaline dry batteries (AM4)
11. Remote controller manual
12. Wire controller
13. Magnetic ring
(twist the electirc wires L and N
around the magnetic ring to five
circles)
14. Owner's manual
15. Installation manual
16 .Transfer connector(C,0.375in-C,0.5in)/
(¢9.52-¢12.7)
(Packed with the indoor unit, used for
multi-type models only )
(NOTE: Pipe size differs from appliance
to appliance.To meet different pipe size
requirements, sometimes the pipe
connections need the transfer connector
to install on the outdoor unit .)
CCD
z
17. Connecting wire for display (6.56ft/2M)
18. Cord protection rubber ring
2
2
1
1
1
1
1
(on some models)
1
(on some models)
1
(on some models)
6

4. INSPECTINGANDHANDLINGTHEUNIT
At delivery, the package should be checked and any damage should
be reported immediately to the service agent.
When handling the unit, take into account the following:
Fragile, handle the unit with care.
[_ Keep the unit upright in order to avoid compressor
damage.
Decide before hand the path which the unit is to be brought
in.
3
4
Move the unit in the original package if possible.
When lifting the unit , always use protectors to prevent belt
damage and pay attention to the position of the unit's centre
of gravity.
5. INDOORUNITINSTALLATION
5.1 Installation place
The indoor unit should be installed in a location that meets
the following requirements:
• There is enough room for installation and maintenance.
• The ceiling is horizontal, and its structure can endure the
weight of the indoor unit.
• The outlet and the inlet are not impeded, and the
influence of external air is minimal.
• The air flow can reach throughout the room.
• The connecting pipe and drainpipe could be extracted
easily.
• There is no direct radiation from heaters.
Maintenance roomage
/
./
/
/
/
/
/
/
/
/
./
/
/
/
/,
/
/
11.811in/300mmor more
7.874in/200mmor more
_
23.622inX23.622in/600mmX600mm
checking orifice
Fig.5-1
5.2
1
[]
[]
[]
CAUTION
Keep indoor unit, outdoor unit, power supply wiring and
transmission wiring at least 3.28ft/1m away from televisions
and radios. This is to prevent image interference and noise
in those electrical appliances. (Noise may be generated
depending on the conditions under which the electric wave is
generated, even if 3.28ft/1m is kept.)
Install the main body
Installing 00.394in/010 hanging screw bolts. (4 bolts)
Please refer to the following figures for positioning 4screw
bolts.
Evaluate the ceiling construction and please install with
00.394in/010 hanging screw bolts.
Consult the construction personnels for the specific procedures.
•Keepv the ceiling flat. Consolidate the roof beam to avoid
possible vibration.
Carry out the pipe and line operation in the ceiling after finishing
the installation of the main body. While choosing where to start
the operation, determine the direction of the pipes to be drawn
out. Especially in case there is a ceiling, position the refrigerant
pipes, drain pipes,indoor & outdoor lines to the connection
places before hanging up the machine.
The installation of hanging screw bolts.
• Cut off the roof beam.
• Strengthen the place that has been cut off, and consolidate
the roof beam.
After the selection of installation location, position the refriger-
ant pipes, drain pipes, indoor and outdoor wires to the connec-
tion places before hanging up the machine.
[] The installation of hanging screw bolts.
NOTE
Confirm the minimum drain tilt is 1/100 or more
5.2.1 Wooden construction
Put the square timber traversely over the roof beam, then install
the hanging screw bolts. (Refer to Fig.5-2)
Timberoverthe beam
L-L_ L[ L_ ROOfbeam
._ZZT77_ i_ _ _ _eiling
\ Hanging screw bolts
Fig.5-2
7

5.2.2 New concrete bricks
Inlaying or embedding the screw bolts. (Refer to Fig. 5-3)
(Blade shape insertion) (Slide insertion)
5.2.3 For Original concrete bricks
Use embedding screw bold, crock and stick harness.
(Refer to Fig.5-4)
_-_.__,`,_,,_,_,-_,_'_ Steel bar
Embedding screw bolt
(Pipe hanging and embedding screw bolt)
5.2.4 Steel roof beam structure
Fig.5-3
Fig.5-4
3.
4.
Air inlet and air outlet duct should be apart far enough to avoid
air passage short-circuit.
Recommended duct connection.
Canvastie-in Canvastie-in
Isolation booth
Air outlet Air inlet
Isolation booth Air dust filter
Fig.5-7
5. Please refer to the following static pressure table to install.
Install and use the supporting angle steel. (Refer to Fig.5-5)
Hangingscrew bolt
[_, .,_,4ar_gU.n_gbelg\ Su__i÷!g
Fig.5-5
2
(1)
(2)
Overhanging the indoor unit
Overhang the indoor unit onto the hanging screw bolts witha
block.
Position the indoor unit in a flat level by using the level indicator,
unless it may cause leakage.
Shockproof cushion \
Screw nut
Washer
Hanging
bolt
Overhang part
Fig.5-6
Table.5-1
0 _ 30
30
70
70
80
100
Note: The above static pressure ratings are in Turbo mode.
NOTE
1. Do not put the connecting duct weight on the indoor unit.
2. When connecting duct, use inflammable canvas tie-in to prevent
vibrating.
3. Insulation foam should be wrapped outside the duct to avoid
condensation and internal duct underlayer shall be added to
reduce the noise for special requirement.
5.3 Duct and accessories installation
1. Install the filter(optional) according to air inlet size.
2. Install the canvas tie-in between the body and duct.
8

The positioning of ceiling hole, indoor unit and hanging screw bolts
Dimension and air outlet size Unit: in/ram
EIF
A
co
D
C
Air inlet size
. . i
IAir filter
Position size of descensional ventilation opening
I
BI
BI
3
3
J
i m D
Air filter
Electric control box
Size of mounted hook
oooo
L
Z
Z
3
m
L
7
Electric control box
Fig.5-8
9

Table.5-2 in/mm
A B C D E F G H I J K L M
27.6/700 8.3/210 25/635 22.4/570 2.6/65 19.4/493 1.4/35 4.7/119 23.4/595 7.9/200 3.2/80 29.1/740 13.8/350
8.3/210 25/635 22.4/570 2.6/65 28.1/713 1.4/35 4.7/119 32.1/815 7.9/200 3.2/80 37.8/960 13.8/350
10.6/270 25/635 22.4/570 2.6/65 28.1/713 1.4/35 7/179 32.1/815 10.2/260 0.8/20 37.8/960 13.8/350
10.6/270 30.5/775 28/710 2.6/65 36.7/933 1.4/35 7/179 40.711035 10.2/260 1.8/45 48.811240 19.7/500
11.8/300 34.1/865 31.5/800 3.2/80 38.1/968 0.4/40 8/204 43.111094 11.3/288 1.8/45 48.811240 19.7/500
(in=mm/25.4)
How to adjust the air inlet direction? (From rear side to under=side.)
Take off ventilation panel and flange, cut off the staples at
side rail.
Air return flange
Dentilation panel
2.
Side'rail
Stick the attached seal sponge as per the indicating place in
the following fig, and then change the mounting positions of
air return panel and air return flange.
Seal sponge/
3. When installing the filter mesh, please plug it into flange
inclined from air return opening, and then push up. 4. The installation is complete, after the filter mesh which holds the fixing blocks have been inserted into the flange positional
holes.
Fig,5-9
NOTE
All the figures inthis manual are for illustration purposes only. They may differ slightly from the air
conditioner you purchased.
10

5.9 Fan performances
Static pressure curve(middle static pressure duct)
12K 18K
Pa
9O
8O
70
_ 6O
&
o
= 50
E 4O
w3O
20
10
\ \\ \,.
'_ _i "\ \, E ,lper hic!h spee(
, _ \ \,-_1 I I
i i , i
\ \ _' _aigh speed
,i i
\ _ _*" _kMld speed
\ \ .._ ""lkL_w:sp ,eec
'.x- \
\ . .A/kl I
\ _./\1 I_1 I
€" , "1111
177 235 294 353 412 471 530
/300 /400 /500' /600 /700 /800 /900
Air volume(CFM/m3/h)
Pa
90
80
70
e
_, 60
S_
o 50
O3
E 40
d3
LU 30
2O
10
\ \
\ \ \
\ \ \
\ \ \
\ \
\, '\ \
\ \ \
\ \ ,j
\ \ Vlid
\ \ /
\\ , .Low .'
\\
118 117 235 294 353 412 471 530 589 647 706
/200 /300 /400 /500 /600 /700 /800 /900 /1000/1100 /1200
Air volume(CFM/m3/h)
24K 30K
Pa
9O
8O
70
60
"_ 50
_ 4o
Ill 3O
20
10
412 471 530 589 647 706 765 824 883
/700 /800 /900 /1000/1100 /1200 /1300/1400 /1500
3
Air volume(CFM/m/h)
Pa
90
8O
70
_, 6o
o50
_ 40
3O
2O
10
\ \ "\
\,\\\ \ x\
\ \ ,, v"
'\
\'\ "\
706 824 942 1059 1177 1295 1413
/1200 /1400/1600 /1800 /2000/2200 /2400
3
Air volume(CFM/m/h)
]!

Pa
'\
90 '\
80
70
60
B_
._.9.
-_ 50
_ 40
nl 3O
20
10
36K
',I\
\\
I
\\
\ \
\"\
\ \ \,
\'\\\ \
\
'\ \
\
kk
"\
\\
IIIII
IIIII
IIIII
IIIII
IIIII
IIIII
_r high speed
f
\
\
Low speed_
IIII
IIII
IIII
IIII
IIII
! \
I
647 706 824 942 1059 1177 1295 1413
/1100 /1200 /1400/1600 /1800 /2000/2200 /2400
Air volume(CFM/m3/h)
P8
120
110
100
90
80
70
e
60
50
E 4O
80
20
48K
lO
\\\
k \\\
\,\ \
'\ \,\,
\ S)per high speed
"IIII
,_ _ High speed
\
g k
\
\
\
\
\
\ \'\
\ ' X"
\ \ \ \
', \ ,\
\
\ \-
i
589 785 942 1118 1295 1471 1648 1825
/1000 /1300 /1800/1900 /2200 /2500/2800 /8100
Air volume(CFM/m_/h)
P8
120
110
100
90
80
70
_ 60
-_ 5O
E 4O
w3O
20
10
60K
'\',\
'\ \
\, ,\\, \, \
\ \ ", \
\ ',, \
\ \ \ ,
\'\
\ '"
i \'
x \
/
765 942 1118 1295 1471 1648 1825 2001
/1000/1300 /1600/1900 /2200 /2500/2800 /3100 /3400
589
]2

6. OUTDOORUNITINSTALLATION e.2 Figureof body size
6.1 Installation Place
•The outdoor unit should be installed in the location that
meets the following requiements:
•There is enough room for installation and maintenance.
"The air outlet and the air inlet are not impeded, and can
not be reached by strong wind.
•It must be a dry and well ventilating place.
• The support is flat and horizontal and can stand the
weight of the outdoor unit. And will no additional noise or
vibration.
Your neighborhood will not feel uncomfortable with the
noise or expelled air.
It is easy to install the connecting pipes or cables.
Determine the air outlet direction where the discharged air
is not blocked.
There is no danger of fire due to leakage of inflammable
gas.
The piping length between the outdoor unit and the indoor
unit may not exceed the allowable piping length.
In the case that the installation place is exposed to strong
wind such as a seaside, ensure the fan operates properly
by putting the unit lengthwise along the wall or using a
dust shield.(Refer to Fig.6-1)
If possible, do not install the unit where it is exposed to
direct sunlight.
If necessary, install a blind that does not interfere with the
air flow.
During the heating mode, the water drained off the
outdoor unit ,the condensate should drain well away by
the drain hole to an appropriate.
Select the position where it will not be subject to snow
drifts, accumulation of leaves or other seasonal debris. If
unavoidable, please cover it with a shelter.
Locate the outdoor unit as close to the indoor unit as
possible.
If possible, please remove the obstacles nearby to prevent
the performance from being impeded by air circulation.
The minimum distance between the outdoor unit and
obstacles described in the installation chart does not
mean that the same is applicable to the situation of an
airtight room. Leave open two of the three directions
(L1 ,L2) (Refer to Fig.6-4)
1. Split type outdoor unit
/i• v
w
Fig.6-2
W
I
Fig. 6-3
0 XFig.6-1
NOTE
All the figures in this manual are for illustration purposes only.
They may be slightly different from the air conditioner you
purchased.
! All; nlet'_' 1_o_-I" _ --
o[ 'r t.... i-- -J"
Air outlet_
Fig.6-4
13

Table 6-1
Unit:in/turn
Model W in (mm) D in (mm) Hin (mm) L1 in (mm) L2 in (mm)
9K/12K 31.89 (810) 12.2 (310) 21.97 (558) 20.9 (530) 11.4 (290)
18K 33.27 (845) 12.60 (320) 27.56 (700) 21.1 (560) 13.2 (335)
24K 37.20 (945) 15.55 (395) 31.89 (810) 25.1 (640) 15.9 (405)
36K 37.20 (945) 15.55 (395) 31.89 (810) 31.89(810) 31.89 (810)
48K 36.93 (938) 15.90 (404) 53.90 (1369) 24.96(634) 17.63 (448)
(in=mm/25.4)
6.3 Space of installation and maintenance
1. Split type outdoor unit
(Wall or obstacle)
.E E[@ ;°
Air inlet "_ Q
J >11.81i/]/30cmn m m
Airinlet _ [_ _ l , ,M2i3nt61innch.... ,
_d_|M \/ Airoutlet
Fig. 6-5
NOTE
All the figures in this manual are for illustration purposes
only. They may differ slightly from the air conditioner you
purchased.
JJJJJJJJJ
Fig.6-6
[] Concrete Foundation
1. The foundation could be flat ground and is recommended be
3.94-11.81 in/100-300mm higher than ground level.
2Jnstall a drainage around the foundation for smooth drain.
3.When installing the outdoor unit fix the unit by anchor bolts of M10.
4.When installing the unit on a roof or a veranda, drain water
sometimes turns to ice in cold weather. Therefore, avoid
draining in an area that people often use because it is slippery.
6.4 Available configuration for centrifugal fan
type outdoor unit
NOTE
Keep in mind that fan unit weight is aprox 1058oz/30kg ,the unit
as well as relevant equipment covered with the vinyl cover
during installation work.
.c
_o
ooo
t o
._-o
Fig.6-7
6.5
o
®
®
®
Moving and installation
Since the gravity center of the unit is not at its physical
center, be careful when lifting it with a sling.
Never hold the inlet of the outdoor unit to prevent it from
deforming.
Do not touch the fan with hands or other objects.
Do not lean it more than 45_ and do not lay it sidelong.
Make concrete foundation accoding to the specifications of
the outdoor units.(Refer to Fig.6-11)
Fasten the feet of this unit with bolts firmly to prevent it from
collapsing in case of earthquake or strong wind.(Refer to
Fig.6-11)
]4

Table 6-2
Outdoor Unit
(_ Vibration-proof rubber
Anchor Bolt M10
Drainage (Wide 3.94in/100×Depth 5.9in/150)
(_ Drainage
Mortar Hole (¢3.94in100×Depth 5.9in/150)
NOTE: Make sure 3-4 degree of angel is kept between the unit and
the floor when the unit is installed in the low temperauture
and humid environment.
Make sure the ice on the chassis of the outdoor unit can be
dealt with when the unit is installed in the low temperature
and humid enviroment.
The outdoor unit should be installed in amounting rack 11.81in
/30cm high.The enviroment temperature should be above
0 °"
The machine must be installed indoor.
° NOTE:the table above refers to the liquid tube.
° NOTE:The number of bends is up to the length of the max
height drop.Usually for each 32.8ft/10m need a bend.
_I_ CAUTION
All field piping must be provided by a licensed
refrigeration technician and must comply with the
relevant local and national codes.
Prevent air, dust, or other impurities from entering in the
pipe system during installation.
Insulation pipe shall be used to the gas piping and the
liquid piping. Otherwise, condensation may occur.
7.2 The Procedure of Connecting Pipes
1 Measure the required length of the connecting
pipe, then create it per the following steps.
7. INSTALLTHECONNECTINGPIPE
7.1 Preparation and Caution
Before installation make sure the height difference, the length
of refrigerant pipe, and the number of the bends between the
indoor unit and outdoor unit meet the following requirements:
Table 7-1 unit: ft/m
32.8ft/10 16.4ft/,'
82.02ft/25 39.37ft112 I
82.02ft/25 49.21ftP
164.04ft/50 82.02ft/25 I
The outdoor unit is charged with rating refrigerant amount in
the factory.Additional charges refer to the table below:
Table 7-2
[] Connect the indoor unit first, then the outdoor unit.
Bend the tubing in a proper way. Do not twist the pipe.
Bend the pipe with thumb
min-radius 3.94in/100mm Fig.7-1
Put some refrigerant oil on the surfaces of the flare pipe
and the joint nuts then wrench it for 3~4 rounds with your
hands before you fasten the flare nuts.(Refer to chart 16)
Use frozen oit i-Fig.7-2
Be sure to use two wrenches simultaneously when you
connect or disconnect the pipes.
_ Make the ends straight
Fig.7-3
Piping
Additional refrigerant charge(between
standard-Max piping length) Gas Pipe(size-connection type Liquid Pipe(size-connection type
System size Oz/ft(g/m) in(mm) in(mm)
9K 0.16(15) 3/8(9.52) 1/4(6.35)
12K 0.16(15) 1/2(12.7) 1/4(6.35)
18K 0.16(15) 1/2(12.7) 1/4(6.35)
24K 0.32(30) 5/8(16) 3/8(9.52)
36K 0.32(30) 5/8(16) 3/8(9.52)
48K 0.32(30) 5/8(16) 3/8(9.52)
]5

[]
[]
[]
The service valves of the outdoor unit should be completely
closed(as original status).Every time you connect,first loosen
the nuts, then connect the flare pipes within 5 minutes. If the
nuts have been loosened for a long time, dusts and other
impurities may enter the pipe system and may cause a
malfunction.So please expel the air out of the pipe with
refrigerant before connection.
Expel the air(refer to the "8.1")after connecting the refrigerant
pipe with the indoor unit and the outdoor unit.
Then fasten the nuts at the service valves.
Bend the connecting pipe of small wall thickness.
• Cut out a proper concave at the bending part of the
insulating pipe.
• Then expose the pipe(cover it with tape after bending).
• To prevent twisting, please bend the pipe at a proper
radius.
NOTE
The bending angle should not exceed 90. o
The bending position is preferably in the middle of the bendable
pipe.
Do not bend the pipe more than three times.
Be sure to use the same insulating materials when you buy the
brass pipe. (More than 0.35in/9mm thick)
3Connect the pipes.
4 Expel the air with a vacuum pump or refrigerant.
5 Open the service valves of the outdoor unit.
6 Check the refrigerant leakage. Check all the joints
with the leak detector or soap water.
7 Cover the joints of the connecting pipe with the
insulation foam, and bind them well with the tape to
prevent potential leakage.
=
8.1
REFRIGERANTPIPE(theunitwiththe
twinsfunction)
Length and drop height permitted of the
refrigerant piping
Note: Reduced length of the branching tube is the 1.64ft
/0,5mof the equivalent length of the pipe,
Table.8-1
2. Place The Pipe
[] Drill a hole in the wall (suitable just for the size of the wall
sleeve), then set the fittings such as the wall sleeve and its
cover.
[] Bind the connecting pipe and the cables together tightly with
binding tapes.
[] Pass the bound connecting pipe through the wall sleeve from
outside. Make sure the pipe allocation does not damage the
copper tubes.
98.42ft/30m L+LI+L2
164.04ft/50m
49.21ft/15m L1,L2
32.8ft/10m L1-L2
65.8fti20m HI
1.64fti0.5m H2
tt Outdoor unit
'¢---
/
The line branch pipe
L2
L1 Indoor unit o
c_
0
oC
cq
0
-o 0
_=-_
Fig.8-1
]6

Note: All used branch pipe must be produced by Midea,
otherwise the unit will malfunction. The indoor units should
be installed equivalently at both sides of the U type branch
pipe.
8.2 Size of joint pipes
Table.8-2 Size of joint pipes for 410A
¢0.375in/9.5 ¢0.25in/6.35 CE-FQZHN-01C
¢0.5in/12.7 ¢0.25in/6.35 CE-FQZHN-01C
¢0.626in!15.9 ¢0.375in!9.5 CE-FQZHN-01C
8.3
1
2)
Vacuum with vacuum pump
3)
Use the vacuum pump with the vacuum level lower than
-14.5PSi!-0.1MPa and the air discharge capacity above
1.4CFM!40L/min.
It is not necessary to vacuum the outdoor unit. Don't open the
outdoor unit gas and liquid pipe shut-off valves.
Make sure the vacuum pump registers as -14.5PSi/-0.1MPa or
below after 2 hours or longer operation. If the pump operated 3
hours or above can not achieve -14.5PSi!-0.1MPa or below,
please check whether there is a water mix or gas leak inside of
the pipe.
Connect with vacuum pump
.0.
IPerform the pump (last for 2 hrs or above)
,,_ I1. Close-off the valve of I
vacuum meter
When get the vacuum level • I
-0.1MPa the pump should 2. Cut off the connection I
run for 2()-60 mins J between pressure meter
I/and vacuum pump.
,_ /3. Close the vacuum I
[vacuum pump
.G
Place the vacuum state unused (1 hrs or above)l
I
I
,_ CAUTION
Fig.8-2
Don't mix up the different refrigerants or abuse the tools and
measurements which directly contact with refrigerants.
Don't adopt refrigerant gas for air vacuuming.
If vacuum level could not get to -14.5PSi/-0.1MPa, please check
whether resulted by leakage and confirm the leakage site.If no
leakage, please operate the vacuum pump again 1 or 2 hrs.
8.4 Refrigerant amount to be added
Calculate the added refrigerant according to the diameter and
the length of the liquid side pipe of the outdoor/indoor unit
connection. The refrigerant is R410A.
Table.8-3
¢0.25in/6.35 0.0331b/0.015kg
¢0.375in/9.52 0.0661b/0.030kg
1) The branching pipe must be installed horizontally, error angle
of it should not large than 10°. Otherwise, a malfunction will
occur.
U-shaped branching pipe
I A
!
A direction view
Wrong Correct
Horizontal surface
Fig.8-3
9. REFRIGERANTPIPECONNECTION
9.1 Expel The Air
1 Flaring
• Cut a pipe with a pipe cutter. (Refer to Fig.9-1)
2
O× X X
/__ 9_ _Lean eludj_bull_
I I I Fig.9-1
• Insert a flare nut into a pipe and flare the pipe.
Fasten the nut
• Put the connecting pipes at the proper position,
wrench the nuts with hands then fasten it with
two wrenches simultaneously. (Refer to Fig.9-2)
__ Fig.9-2
CAUTION
Too much torque will harm the bellmouthing and too little will
cause leakage. Please determine the torque according to
Table 9-1.
17

Table 9-1
144_-- 176 kgf.cm
(14.2 -_17.2 N.m)
333---407 kgf.cm
(32.7 -_39.9 N.m)
504 -_616 kgf.cm
(49.5"---60.3 N.m)
630--_770 kgf.cm
(61.8"--_75.4 N.m)
0.327in/8.3
0.472in/12.0
0.606in/15.4
0.732in/18.6
0.343in/8.7
0.488in/12.4
0.622in/15.8
0.748in/19.0
90°i4
Expel the air with a vacuum pump(Refer to Fig.9-3)
(Please refer to its manual for the method of using the
manifold valve)
Loosen and remove the nuts of service valves A and B,
and connect the charge hose of the manifold valve with
the maintenance terminator of service valve A. (Be sure
that service valves A and B are both closed)
• Connect the joint of the charge hose with the vacuum
pump.
• Open the Lo-lever of the manifold valve completely.
Turn on the vacuum pump. At the beginning of pumping,
loosen the nut of service valve B a little to check whether
the air comes in (the sound of the pump changes, and
the indicator of compound meter turns below zero). Then
fasten the nut.
When the pumping has finished, close the Lo-lever of the
manifold valve completely and turn off the vacuum pump.
When you have pumped for over 15 minutes, please
confirm that the indicator of multimeter is on -1.0X10-_Pa
(-76cmHg)
Loosen and remove the nuts of service valves A and B to
open service valve A andB completely, then fasten nuts.
Disassemble the charge hose of service valve A, and
fasten the nut.
ManifoEd va(ve
MultFmeter Pressure meter
-76 cmHg
Lo-lever HHever
Charge hosem=,.- Charge hose
_ Vacuum pump
Fig.9-3
_L CAUTION
Both service valves should be open before test operation.
Each air conditioner has two service valves of different
sizes.(Refer to Fig.8-4) Flarenut
Stopper
Cap
9.2 Check the Leakage
Check all the joints with the leak detector or soap water. (Refer
Fig.9-5 as a reference illustration)
in the chart
A......Lo-stop valve
B......Hi-stop valve
C,D..Joints of the connecting pipe to the indoor unit.
Check-point of indoor unit _C
Check-point ofout!!or uni_J
Fig.9-5
9.3 Insulation
Be sure to completely insulate all the exposed parts of the flare
pipes.
Incomplete insulation may cause condensation.
10. CONNECTTHEDRAINPIPE
• Install the drainpipe of the indoor unit
• Use a polyethylene tube as the drainpipe (out-dia.1.14-1.22in
/29-31mm, in-dia.0.984in/25mm).
• When extending the drainpipe,tighten the connector with
water-proof tape to prevent leakage.
• Lean the drainpipe down toward outdoor (outlet-side) at a
degree of over 1/ 50 to keep water from flowing back. And
please Avoid any bulge.
• Do not drag the drainpipe roughly. One support point should
be set every 3.28~4.92ft/1~1.5m to prevent the drainpipe
from yielding. Or tie the drainpipe with the connecting pipe to
fix it.
If the outlet of the drainpipe is higher than the body's pump
joint, the pipe should be arranged as vertically as possible.
And the lift distance must be less than 21.65in!550mm,
otherwise the water can not be lifted completely and may
cause overflow.(Only available for the unit with a pump.)
The end of the drainpipe should be over 1.969in/50mm higher
than the ground , and do not immerse it in water. If you
discharge the water directly into sewage, be sure to make a
U-form aqua seal by bending the pipe up to keep the foul gas
entering the house through the drain pipe.
Valve body
Valve stern Fig.9-4
]8

The drain pipe installation for the unit with pump.
............................................................ 3,28;4_2_..........
iI , , I/1-1.5m ]L ....... 1/50
iFJg.lO-1
The drain pipe installation for the unit without pump.
Fig. 10-2
[] Drainage test
• Check whether the drainpipe is unhindered,
• New ly built houses should have this test done before
paving the ceiling.
[] The unit with pump,
1 Remove the test cover, and stow about 2000ml water in the
water pan.
2 Operate the air conditioner in "COOLING" mode. The sound of
the drain pump should be noticeable. Check whether the water
is discharged well (1 min lag is possible, according to the length
of the drain pipe), and check whether the water leaks from the
joints.
3 Power off the air conditioner and recover the cap.
[] The unit without pump.
stowtuL Fig. 10-5
Stow 2000ml water in the water pan through the stow
tube,check whether the drainpipe is unhindered.
Install the drain joint of the outdoor unit
(For Heat Pump Models)
Fit the seal into the drain joint, then insert the drain joint into the
base pan hole of outdoor, rotate 90° to securely assemble them.
Connect the drain joint with an extension drain hose (Locally
purchased)to avoid condensate from draining off the outdoor
unit during the heating mode.
Test cap
Fig. 10-3
Fig. 10-4
Seal
Base pan
,__DD Seal
rain
joint Fig. 10-6
NOTE
All the figures in this manual are for illustration purposes only.
They may differ slightly from the air conditioner you purchased.
11. FRESHAIRDUCTINSTALLATION
Dimension •
Duct joint for fresh air
, ,o _o
e
O4.92in/125mm_ _ O6.3in/160mm
\
"_oj"
Fig. 11-1
]9

11.1Motor and drain pump maintenance
(Use rear ventilated as example)
Motor maintain:
1. Take off the ventilated panel.
2. Take off the blower housing.
3. Take off the motor.
Mofor
+
Pump maintainance:
1.
2.
3.
12.
-- Ventilated panel
+Fig.11-1
1
Screw off four screws from drain pump.
Plug off pump power supply and water level switch cable.
Take off _
CONTROL(ONLYFORINVERTERUNITS)
• The capacity of the system and the network address of
the air-conditioner can be set by the switches on the
indoor Main Control Board,
•Before setting, turn off the power, After setting, restart
the unit,
•Setting is not allowed when the unit is power on,
12.1 Horsepower code setting
The capacity of the indoor unit has been set in the
factory according to the below table,
Horsepower code
POWER $
%
ENC1
Table 12-1
8 10.5
9 14.0
A 16.0
12.2 Network address set
Every air-conditioner in the network has only one network
address to distinguish each other. The address code of air-con-
ditioner in LAN is set by code switches $1 & $2 on the Main
Control Board of the indoor unit, and the set range is 0-63.
Table 12-2
13. WIRING
The appliance shall be installed in accordance with
national wiring regulations,
The air conditioner should use a separate power supply
with rated voltage,
The external power supply to the air conditioner should
be grounded, which is linked to the ground wiring of the
indoor and outdoor unit,
The wiring work should be done by qualified persons
according to the wiring diagram,
A circuit breaker and a residual current device (RCD) with
10mAor above rating shall be installed in the power
circuit according to the national rule,
Be sure to locate the power wiring and the signal wiring
well to avoid cross-disturbance,
Do not turn on the power until you have confirmed
proper wiring,
The power cord type is H07RN-F,
NOTE
Refer to EMC Directive 2004/108/EC
To prevent flicker impressions during the start of the
compressor, the following installation conditions apply.
1 The power connection for the air conditioner has to be
done at the main power distribution. The distribution has
to be of a low impedance, normally the required
impedance reaches at a 32 A fusing point.
No other equipment has to be connected with this power
line.
2
3
4
5
13.1
For detailed installation acceptance please refer to your
power supplier, to verifyif restrictions apply for products
like washing machines, air conditioners or electrical
ovens.
For power details of the air conditioner refer to the rating
nameplate of the product.
For any questions contact your local dealer.
Connect the cable
Disassemble the cover.0f there isn't a cover on the outdoor
unit, disassemble the screw from the maintenance board, and
pull it in the direction of the arrow to remove the protection
board.)
Connect the cables to the terminals correspondingly.
Re-install the cover or the protection board.
13.2 The Specification of Power
(Refer to Table14-1~14-3)
13.3 Wiring figure (Refer to Fig. 13-3-Fig. 13-6)
1.split type outdoor unit
Cover
Protection board Fig. 13-1
2O