Mitsubishi Electronics PEFY-AF1200CFM, PEFT-AF1200CFMR User Manual

Air-Conditioners
INDOOR UNIT

PEFY-AF1200CFM, PEFY-AF1200CFMR

INSTALLATION MANUAL

For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner unit.

MANUEL D’INSTALLATION

Veuillez lire le manuel d’installation en entier avant d’installer ce climatiseur pour éviter tout accident et vous assurer
d’une utilisation correcte.

English

Français

3

[Fig. 3.2.1]

3

2

1385 (54-9/16)

1325 (52-3/16)

(Suspension bolt pitch)

1250 (49-1/4)

1000 (39-3/8) (Duct)

1325 (52-3/16)

3.2

(Unit: mm [in.])

75(3)

C

800 (31-1/2)

600 (23-5/8)

B

A

1100 (43-5/16)

100 (3-15/16)

1338 (52-11/16) (Suspension bolt pitch)

D

30 (1-3/16)

1

470 (18-9/16)

A

150 (5-15/16)

E

A Access door
B Electrical parts box
C Air inlet
D Air outlet
E Ceiling surface
1 800 mm [31-1/2 in.] or more
2 100 mm [3-15/16 in.] or more
3 20 mm [13/16 in.] or more

4

[Fig. 4.1.1]

Z

5

4.1

LW

YX

A

5.1

[Fig. 5.1.1] [Fig. 5.1.2]

A

A Unit
B Lifting machine

B

6

[Fig. 6.2.1]

<PEFY-AF1200CFM> <PEFY-AF1200CFMR>

96(3-13/16)604(23-13/16)

524(20-11/16)

6.2

AECDB

C

D

170(6-3/4)

524(20-11/16)

A Center of gravity

D

C

E

95(3-3/4)

EGFD C

C Nuts (field supplied)
D Washers (accessory)
E M10 hanging bolt (field supplied)

(Unit: mm [in.])

96(3-13/16)339(13-3/8)

40(1-5/8)

60(2-3/8)

170(6-3/4)

A Gas refrigerant piping brazing connection: ø22.2 (7/8)
B Liquid refrigerant piping brazing connection: ø9.52 (3/8)
C Drain pipe (O.D. ø32 [1-1/4], primary draining)
D Drain pipe (O.D. ø32 [1-1/4], secondary draining)
E Drain pipe (O.D. ø32 [1-1/4])

35(1-7/16)

350(13-13/16)

395(15-9/16)

155(6-1/8)

40(1-5/8)

155(6-1/8)

170(6-3/4)

A Gas refrigerant piping brazing connection of main coil: ø22.2 (7/8)
B Liquid refrigerant piping brazing connection of main coil: ø9.52 (3/8)
C Gas refrigerant piping brazing connection of reheat coil: ø22.2 (7/8)
D Liquid refrigerant piping brazing connection of reheat coil: ø9.52 (3/8)
E Drain pipe (O.D. ø32 [1-1/4], primary draining)
F Drain pipe (O.D. ø32 [1-1/4], secondary draining)
G Drain pipe (O.D. ø32 [1-1/4])

60(2-3/8)

35(1-7/16)

350(13-13/16)

AB

395(15-9/16)

2

7

7.1

[Fig. 7.1.1]

[Fig. 7.1.3]

A

B

A

D

A Insulation
B Remove insulation
C Wrap with damp cloth
D Return to original position
E Ensure that there is no gap

[Fig. 7.1.2]

A

A Wrap with a damp cloth to cool

A Cut
B Remove brazed cap

C

F

G

H

J

I

E

L

K

F

N

O

20

20

O

M

J

K

20

N

20

F Insulation pipe (small) (accessory)
G Caution:

Pull out the insulation on the refrigerant piping at the site, braze the piping, and
replace the insulation in its original position.

Take care to ensure that condensation does not form on exposed copper piping.

H Liquid refrigerant piping
I Gas refrigerant piping
J Main body
K Insulation pipe (large) (accessory)
L Site refrigerant piping
M Ensure that there are no gaps between the insulation and the body.
N Tie (long) (accessory)
O Ensure that there is no gap here. Joint should face up.

[Fig. 7.1.4]
[PEFY-AF1200CFMR]

A

EE

E

F

CBD

A Outdoor unit (PURY-P120THMU (-BS), PURY-P120YHMU (-BS))
B BC controller
C Indoor unit (Main heat-exchanger)
D Indoor unit (Re-heating heat-exchanger)
E Twinning pipe (CMY-R160-J:optional)
F Twinning pipe (field supplied)

[Fig. 7.1.5]

120mm [4-3/4in.]

AA

B

A Gas pipe: ø19.05 mm [3/4 in.]

Liquid pipe: ø9.52 mm [3/8 in.]

B Gas pipe: ø22.2 mm [7/8 in.]

Liquid pipe: ø9.52 mm [3/8 in.]

3

[Fig. 7.2.1]

7.2

Max. 20m [65 ft]

1.5-2 m [5 to 7 ft]

C

A

B

Max. 300 mm [11-13/16 in.]

N

B

J

F

K

B

D

F

E

FF

L

O

M

D

D

G

H

I

Correct piping

Wrong piping

A Insulation (9 mm [3/8 in.] or more)
B Decline (1/100 or more)
C Support metal
K Air release tube
L Tr ap
M Odor trap

Drain pipe system

D O. D. ø32 mm [1-1/4 in.] PVC TUBE
E Make it as large as possible. About 10 cm [3-15/16 in.].
F Indoor unit
G Make the piping size large for drain pipe system.
H Decline (1/100 or more)
I O. D. ø38 mm [1-1/2 in.] PVC TUBE for drain pipe system.

(9 mm [3/8 in.] or more insulation)

J Up to 550 mm [21-21/32 in.]
N Drain hose (accessory)
O Horizontal or slightly upgradient

[Fig. 7.2.2]

A

B

C

(Unit: mm [in.])

K

J

F

35

25 [1] 25 [1]

[1-13/32]

DE E

G

H

I

A Indoor unit
B Insulation (long) (accessory)
C Tie (long) (accessory)
D Visible part
E Insertion margin
F Drain hose (accessory)
G Drain pipe (O.D. ø32 mm [1-1/4 in.] PVC, field supplied)
H Insulation (field supplied)
I Tie (short) (accessory)
J Max.180 ± 5 mm [7-3/32 ± 7/32 in.]
K The joint of the insulation must be positioned up.

7.3

[Fig. 7.2.3]

I

5

[7/32]

B

A

F

D

C

A Indoor unit
B Insulation (short) (accessory)
C Tie (short) (accessory)
D Attaching the band
E Insertion margin
F Drain hose (accessory)
G Drain pipe (O.D. ø32 mm [1-1/4 in.] PVC, field supplied)
H Insulation (field supplied)
I Max.145 ± 5 mm [5-23/32 ± 7/32 in.]

(Unit: mm [in.])

25 [1]

E

G

H

[Fig. 7.3.1]

A

B

F

A Insert pump's end 2 to 4 cm [13/16 to 1-19/32 in.].
B Remove the water supply port.
C About 2 L
D Water
E Filling port
F Screw

E

4

[Fig. 7.3.2]

SWE

C

D

<Indoor controller board>

8

[Fig. 8.0.1]

E

DC

BA

E

F

A Air inlet
B Air outlet
C Access door
D Ceiling surface
E Canvas duct
F Air filter

9

[Fig. 9.1.1]

AB

[Fig. 9.1.2]
[PEFY-AF1200CFM]

T(S)HMU: 3~208–230V
Y(S)HMU: 3~460V

1

, L2, L

L

[Fig. 9.1.3]
[PEFY-AF1200CFMR]

T(S)HMU: 3~208-230V
Y(S)HMU: 3~460V
L

3

~208–230V
L

1

~208–230V

1

L

1

, L

, L2, L

, L

D

9.1

A Switch 16 A

E

C

BA

BA

2

BA

3

BA

2

B Overcurrent protection 16 A
C Indoor unit
D Total operating current be less than 16 A
E Pull box

C

Ground

D

Ground

C

Ground

D

F

E

Ground

A Switch (Breakers for wiring and current leak)
B Breakers for current leak
C Outdoor unit
D Indoor unit

A Switch (Breakers for wiring and current leak)
B Breakers for current leak
C Outdoor unit
D Pull box
E Indoor unit
F BC controller

[Fig. 9.2.1]

M1M2 21

TB3

TB5 TB15

AB

SM1M2

[Fig. 9.2.2]

C

[Fig. 9.2.3] [Fig. 9.2.4]

B

D

M1

G

L2

L1

1

M2

S

2

A

DC10~13V

C

AB
12

9.2

TB3

AB

M1M2

TB5

SM1M2

A Ter minal block for indoor

transmission cable

B Ter minal block for outdoor

transmission cable

C Remote controller

C

B

D

M2

M1

G

L2

L1

A

DC24~30V

C

12

(A,B)

2

1

S

A Non-polarized
B TB15
C Remote Controller
D TB5

5

[Fig. 9.3.1]

M2 SM1

A

B

C

E

D

[Fig. 9.3.3]

9.3

[Fig. 9.3.2]

A

B

A Ter minal block box

A

B Cover

A

B

C

B Knockout hole
C RemoveA Screw (2pcs)

A

[Fig. 9.3.4]

A

A Power source terminal block
B Transmission terminal block to outdoor unit
C Transmission terminal block to remote controller

C

B

F

E

D

C

G

B

I

H

A Use conduit to keep the weight of the cable and external force from being applied to the power

supply terminal connector.

B Power source wiring
C Conduit
D Te r minal block box
E Knockout hole (for power source wiring)
F Washer (accessory)
G Tensile force
H Use ordinary bushing
I Tr ansmission wiring

[Fig. 9.3.5]

C

A Te r minal block
B Round terminal
C Shield wire
D The ground wire from two cables are connected together to the S terminal.

(Dead-end connection)

E Insulation tape (To keep the ground wire of the shielded cable from coming

in contact with the transmission terminal)

9.5

[Fig. 9.5.1]

C

D

B

A

<Indoor controller board>

A SW11: Swich (1s digit address set)
B SW12: Swich (10ths digit address set)
C SW14: Swich (connection no. set)

6

D SWE: Conector (emergency operation)

[Fig. 9.5.2]

B A

A Indoor controller board (main)
B Indoor controller board (reheat)

Contents

1. Safety precautions ...................................................................................... 7

1.1. Before installation and electric work .......................................... 7

1.2. Precautions for devices that use R410A refrigerant .................. 7

1.3. Before getting installed .............................................................. 8

1.4. Before installation (moved) - electrical work .............................. 8

1.5. Before starting the test run ........................................................ 8

2. Indoor unit accessories ............................................................................... 8

3. Selecting an installation site ....................................................................... 9

3.1. Install the indoor unit on a ceiling strong enough to sustain

its weight ................................................................................... 9

3.2. Securing installation and service space .................................... 9

3.3. Connecting indoor units with outdoor units ............................... 9

4. Fixing hanging bolts .................................................................................... 9

4.1 Fixing hanging bolts .................................................................. 9

5. Installing the unit ......................................................................................... 9

5.1. Hanging the unit body ............................................................... 9

5.2. Confirming the unit’s position and fixing hanging bolts ............. 9

1. Safety precautions

1.1. Before installation and electric work

s Before installing the unit, make sure you read all the “Safety

precautions”.

s The “Safety precautions” provide very important points re-

garding safety. Make sure you follow them.

Symbols used in the text

Warning:

Describes precautions that should be observed to prevent danger of injury
or death to the user.

Caution:

Describes precautions that should be observed to prevent damage to the
unit.

Symbols used in the illustrations

: Indicates an action that must be avoided.

: Indicates that important instructions must be followed.

: Indicates a part which must be grounded.

: Indicates that caution should be taken with rotating parts. (This symbol is

displayed on the main unit label.) <Color: Yellow>

:Beware of electric shock. (This symbol is displayed on the main unit label.)

<Color: Yellow>

Warning:

Carefully read the labels affixed to the main unit.

Warning:

• Ask the dealer or an authorized technician to install the air conditioner.

- Improper installation by the user may result in water leakage, electric shock,
or fire.

• Install the air unit at a place that can withstand its weight.

- Inadequate strength may cause the unit to fall down, resulting in injuries.

• Use the specified cables for wiring. Make the connections securely so
that the outside force of the cable is not applied to the terminals.

- Inadequate connection and fastening may generate heat and cause a fire.

• Prepare for typhoons and other strong winds and earthquakes and in­stall the unit at the specified place.

- Improper installation may cause the unit to topple and result in injury.

•Always use an air cleaner, humidifier, electric heater, and other accesso­ries specified by Mitsubishi Electric.

- Ask an authorized technician to install the accessories. Improper installation

by the user may result in water leakage, electric shock, or fire.

•Never repair the unit. If the air conditioner must be repaired, consult the
dealer.

- If the unit is repaired improperly, water leakage, electric shock, or fire may

result.

• Do not touch the heat exchanger fins.

- Improper handling may result in injury.

• When handling this product, always wear protective equipment.
EG: Gloves, full arm protection namely boiler suit, and safety glasses.

- Improper handling may result in injury.

6. Refrigerant pipe and drain pipe specifications .......................................... 10

6.1. Refrigerant pipe and drain pipe specifications ........................ 10

6.2. Refrigerant pipe, drain pipe ..................................................... 10

7. Connecting refrigerant pipes and drain pipes ........................................... 10

7.1. Refrigerant piping work ........................................................... 10

7.2. Drain piping work ..................................................................... 11

7.3. Confirming drain discharge ..................................................... 11

8. Duct work .................................................................................................. 11

9. Electrical wiring ......................................................................................... 12

9.1. Power supply wiring................................................................. 12

9.2. Connecting remote controller, indoor and outdoor

transmission cables ................................................................. 13

9.3. Connecting electrical connections ........................................... 13

9.4. External I/O specifications ....................................................... 14

9.5. Selecting the external static pressure ..................................... 14

9.6. Setting addresses .................................................................... 14

9.7. Setting a dew point temperature ............................................. 14

• If refrigerant gas leaks during installation work, ventilate the room.

- If the refrigerant gas comes into contact with a flame, poisonous gases will
be released.

• Install the air conditioner according to this Installation Manual.

- If the unit is installed improperly, water leakage, electric shock, or fire may
result.

•Have all electric work done by a licensed electrician according to “Elec­tric Facility Engineering Standard” and “Interior Wire Regulations”and
the instructions given in this manual and always use a special circuit.

- If the power source capacity is inadequate or electric work is performed im-

properly, electric shock and fire may result.

•Keep the electric parts away from water (washing water etc.).

- It might result in electric shock, catching fire or smoke.

• Securely install the outdoor unit terminal cover (panel).

- If the terminal cover (panel) is not installed properly, dust or water may enter

the outdoor unit and fire or electric shock may result.

• When installing and moving the air conditioner to another site, do not
charge it with a refrigerant different from the refrigerant specified on the
unit.

- If a different refrigerant or air is mixed with the original refrigerant, the refrig-

erant cycle may malfunction and the unit may be damaged.

• If the air conditioner is installed in a small room, measures must be taken
to prevent the refrigerant concentration from exceeding the safety limit
even if the refrigerant should leak.

- Consult the dealer regarding the appropriate measures to prevent the safety

limit from being exceeded. Should the refrigerant leak and cause the safety
limit to be exceeded, hazards due to lack of oxygen in the room could result.

• When moving and reinstalling the air conditioner, consult the dealer or
an authorized technician.

- If the air conditioner is installed improperly, water leakage, electric shock, or

fire may result.

• After completing installation work, make sure that refrigerant gas is not
leaking.

- If the refrigerant gas leaks and is exposed to a fan heater, stove, oven, or

other heat source, it may generate noxious gases.

• Do not reconstruct or change the settings of the protection devices.

- If the pressure switch, thermal switch, or other protection device is shorted

and operated forcibly, or parts other than those specified by Mitsubishi Elec­tric are used, fire or explosion may result.

•To dispose of this product, consult your dealer.

• Do not use a leak detection additive.

• When installing or relocating the unit, check that no substance other than
the specific refrigerant (R410A) is present in the refrigerant circuit.

- Infiltration of other substance may cause the pressure to rise abnormally

high and poses a risk of pipe bursting and explosion.

1.2. Precautions for devices that use R410A

refrigerant

Caution:

• Do not use the existing refrigerant piping.

- The old refrigerant and refrigerator oil in the existing piping contains a large

amount of chlorine which may cause the refrigerator oil of the new unit to
deteriorate.

DFEINLPGRRU

CZSVHGPO

7

• Use refrigerant piping made of C1220 (Cu-DHP) phosphorus deoxidized
copper as specified in the JIS H3300 “Copper and copper alloy seamless
pipes and tubes”. In addition, be sure that the inner and outer surfaces of
the pipes are clean and free of hazardous sulphur, oxides, dust/dirt, shav­ing particles, oils, moisture, or any other contaminant.

- Contaminants on the inside of the refrigerant piping may cause the refriger-

ant residual oil to deteriorate.

• Store the piping to be used during installation indoors and keep both
ends of the piping sealed until just before brazing. (Store elbows and
other joints in a plastic bag.)

- If dust, dir t, or water enters the refrigerant cycle, deterioration of the oil and

compressor trouble may result.

• Use ester oil, ether oil or alkylbenzene (small amount) as the refrigerator
oil to coat flares and flange connections.

- The refrigerator oil will degrade if it is mixed with a large amount of mineral oil.

• Use liquid refrigerant to fill the system.

- If gas refrigerant is used to seal the system, the composition of the refriger-

ant in the cylinder will change and performance may drop.

• Do not use a refrigerant other than R410A.

- If another refrigerant is used, the chlorine in the refrigerant and the refriger-

ant oil in the existing piping may cause the refrigerator oil to deteriorate.

• Use a vacuum pump with a reverse flow check valve.

- The vacuum pump oil may flow back into the refrigerant cycle and cause the

refrigerator oil to deteriorate.

• Do not use the following tools that are used with conventional refriger­ants.
(Gauge manifold, charge hose, gas leak detector, reverse flow check valve,
refrigerant charge base, vacuum gauge, refrigerant recovery equipment)

DFEINLPGRRUTR

- If the conventional refrigerant and refrigerator oil are mixed in the R410A,

the refrigerant may deteriorated.

- If water is mixed in the R410A, the refrigerator oil may deteriorate.

- Since R410A does not contain any chlorine, gas leak detectors for conven-

tional refrigerants will not react to it.

• Do not use a charging cylinder.

- Using a charging cylinder may cause the refrigerant to deteriorate.

• Be especially careful when managing the tools.

- If dust, dir t, or water gets in the refrigerant cycle, the refrigerant may deterio-

rate.

1.3. Before getting installed

Caution:

• Do not install the unit where combustible gas may leak.

- If the gas leaks and accumulates around the unit, an explosion may result.

• Do not use the air conditioner where food, pets, plants, precision instru­ments, or artwork are kept.

- The quality of the food, etc. may deteriorate.

• Do not use the air conditioner in special environments.

- Oil, steam, sulfuric smoke, etc. can significantly reduce the performance of

the air conditioner or damage its parts.

• When installing the unit in a hospital, communication station, or similar
place, provide sufficient protection against noise.

- The inverter equipment, private power generator, high-frequency medical

equipment, or radio communication equipment may cause the air conditioner
to operate erroneously, or fail to operate. On the other hand, the air condi­tioner may affect such equipment by creating noise that disturbs medical
treatment or image broadcasting.

• Do not install the unit on a structure that may cause leakage.

- When the room humidity exceeds 80 % or when the drain pipe is clogged,

condensation may drip from the indoor unit. Perform collective drainage work
together with the outdoor unit, as required.

• The indoor models should be installed more than 2.5 m [9 ft] from floor.

1.4. Before installation (moved) ­electrical work

Caution:

•Ground the unit.

- Do not connect the ground wire to gas or water pipes, lightning rods, or
telephone ground lines. Improper grounding may result in electric shock.

• Install the power cable so that tension is not applied to the cable.

-Tension may cause the cable to break and generate heat and cause a fire.

• Install a leak circuit breaker, as required.

- If a leak circuit breaker is not installed, electric shock may result.

• Use power line cables of sufficient current carrying capacity and rating.

- Cables that are too small may leak, generate heat, and cause a fire.

• Use only a circuit breaker and fuse of the specified capacity.

-A fuse or circuit breaker of a larger capacity or a steel or copper wire may
result in a general unit failure or fire.

• Do not wash the air conditioner units.

-Washing them may cause an electric shock.

• Be careful that the installation base is not damaged by long use.

- If the damage is left uncorrected, the unit may fall and cause personal injury
or property damage.

• Install the drain piping according to this Installation Manual to ensure
proper drainage. Wrap thermal insulation around the pipes to prevent
condensation.

- Improper drain piping may cause water leakage and damage to furniture

and other possessions.

• Be very careful about product transportation.

- One person should not carry the product if it weighs more than 20 kg [45

LBS].

- Some products use polypropylene bands for packaging. Do not use any

polypropylene bands for a means of transportation. It is dangerous.

- Do not touch the heat exchanger fins. Doing so may cut your fingers.

- When transporting the outdoor unit, suspend it at the specified positions on

the unit base. Also support the outdoor unit at four points so that it cannot
slip sideways.

• Safely dispose of the packing materials.

-Packing materials, such as nails and other metal or wooden parts, may cause

stabs or other injuries.

-Tear apart and throw away plastic packaging bags so that children will not

play with them. If children play with a plastic bag which was not torn apart,
they face the risk of suffocation.

1.5. Before starting the test run

Caution:

•Turn on the power at least 12 hours before starting operation.

- Starting operation immediately after turning on the main power switch can

result in severe damage to internal parts. Keep the power switch turned on
during the operational season.

• Do not touch the switches with wet fingers.

-Touching a switch with wet fingers can cause electric shock.

• Do not touch the refrigerant pipes during and immediately after opera­tion.

- During and immediately after operation, the refrigerant pipes may be hot and

may be cold, depending on the condition of the refrigerant flowing through
the refrigerant piping, compressor, and other refrigerant cycle parts. Your
hands may suffer burns or frostbite if you touch the refrigerant pipes.

• Do not operate the air conditioner with the panels and guards removed.

- Rotating, hot, or high-voltage parts can cause injuries.

• Do not turn off the power immediately after stopping operation.

- Always wait at least five minutes before turning off the power. Otherwise,

water leakage and trouble may occur.

2. Indoor unit accessories

The unit is provided with the following accessories:

Par t No.

1 Installation manual 1 1

CZSVHGPO

2 Operation manual 1 1
3Washer (for hanging) 8 8

Connector assy (for external static pressure switch)

4

[Red: middle pressure]
Connector assy (for external static pressure switch)

5

[Blue: low pressure]
Pipe cover (for refrigerant piping joint)

6

120 mm [3/4 in.] Small diameter
Pipe cover (for refrigerant piping joint)

7

120 mm [3/4 in.] Large diameter

Accessories CFM CFMR

8

11

11

12

12

Par t No.

8 Tie (short) 2 2

9 Tie (long) 5 9
10 Drain hose 1 1
11 Pipe cover (for drain hose) 60 mm [3/8 in.] 1 1
12 Pipe cover (for drain hose) 25 mm [1 in.] 1 1
13 Washer (for power source wiring) 1 1
14 Reducer 19.05 - 22.2 mm [3/4-7/8 in.] (for gas pipe) 1
15 Reducer 9.52 - 12.7 mm [3/8-1/2 in.] (for liquid pipe) 1

Accessories CFM CFMR