TOSHIBA MCY-MHP0806HS8-E MiNi SMMSe VRF Air Conditioning Heat Pump System Installation Guide

Snow shield

Snow shield

2. Consider the wind direction during the operational season of the air conditioner, and install the unit so that the discharge port is set at a right angle relative to the wind direction.

Strong wind

Strong wind

EN-19

­ 10 ­

EN-20

­ 11 ­

Installation Manual

Necessary space for installation (Unit: mm)

Be sure to observe the necessary space for instllation. Install the outdoor unit in a well-ventilated location. Failure to do so may cause short circuit (intake of discharge air) or performance deterioration due to locations around the outdoor unit.

Obstacle at rear side

Obstacle in front

Upper side is free 1. Single unit installation

Above unit is free 1. Single unit installation

Obstacles in both front and rear of unit
Open above and to the right and left of the unit. The height of an obstacle in both the front and rear of the unit, should be lower than the height of the outdoor unit.

Serial installation in front and rear
Open above and to the right and left of the unit. The height of an obstacle in both the front and rear of the unit should be lower than the height of the outdoor unit.

Standard installation 1. Single unit installation

Standard installation

150 or more

1,000 or 300 or 1,500 or

more

more more

2,000 or more

200 or more

1,000 or more

800 or more

200 or more 150 or more

2. Obstacles on both right and left sides
The height of the obstacle should be lower than the height of the outdoor unit.

2. Serial installation of two or more units

300 or more

300 or more

150 or more

300 or more

3. Serial installation of two or more units The height of the obstacle should be lower than the height of the outdoor unit.

Obstacle also above unit 1,000 or more

800 or more

150 or more

300 or more

300 or more

Obstacle also above unit

150 or more

300 or more

Obstacles in front and both right and left side

150 or more

300 or more

1,000 or more

2. Serial installation of two or more units

200 or more

1,000 or more

250 or more

250 or more

Installation of outdoor unit

· Before installation, check the strength and horizontalness of the base so that abnormal sounds do not emanate. · According to the following base diagram, fix the base firmly with the anchor bolts.
(Anchor bolt, nut: M12 x 4 pairs)

Back side

164

660

164

Drain hole

500 or more 200 or more

800 or more

490 445

EN-21

Front side (Air discharge side)

Knockout hole
EN-22

EN

· As shown in the figure below, install vibration-proof rubber pads to directly support the bottom surface of the fixing leg. * When installing the foundation for an outdoor unit with downward piping, consider the piping work.

Correct

Correct

Fixing leg

Absorb vibration with vibration-proof rubber pads

Bottom plate of outdoor unit

Foundation
If only the end of the fixing leg is supported,
it may deform.

Incorrect

Foundation

Support the bottom surface of the fixing leg that is in contact with and underneath the bottom plate of the outdoor unit.

Do not support the outdoor unit only with the fixing leg.

Foundation Set the out margin of the anchor bolt to 20 mm or less.
20 or less
· When the unit is to be installed in a location where it is likely to be exposed to strong winds or where the foundation is unstable, additional measures must be taken to prevent tip-over as shown in the figure below.

Tip-over prevention part

Tip-over prevention part

Installation Manual
For reference
If a heating operation is to be continuously performed for a long time under the condition that the outdoor temperature is 0 °C or lower, draining defrosted water may be difficult due to the bottom plate freezing, resulting in trouble with the cabinet or fan. It is recommended to procure an anti- freeze heater locally in order to safely install the air conditioner. For details, contact the dealer.

CAUTION
· Carry out the installation work by following the prescribed procedure to make provision against the shaking of the unit caused by strong winds, earthquakes, etc.
· Failure to carry out the installation work as prescribed may lead to the unit tipping over, in turn causing an accident.

EN-23

­ 12 ­

EN-24

­ 13 ­

Installation Manual

5 Refrigerant Piping
Leading out the pipes

Front

Side

Bottom

· The indoor/outdoor unit connecting pipes can be connected in any of 4 directions. Use a screwdriver to punch out the knockout part of the front panel or base. Wear heavy work gloves to protect yourself from injury while doing this work. After punching out the knockout hole in a manner which ensures that the pipes and wires will not be damaged in any way, remove the burrs from around the hole.
REQUIREMENT
Follow the instructions in the installation manual provided with the branch pipe kit and the instructions in the installation manual of the indoor unit to connect the refrigerant pipe between the branch pipe and indoor unit.

Refrigerant piping connection
CAUTION
TAKE NOTE OF THESE 4 IMPORTANT POINTS BELOW FOR PIPING WORK 1. Keep dust and moisture away from inside the connecting pipes. 2. Tightly connect the connection between pipes and the unit. 3. Evacuate the air in the connecting pipes using a VACUUM PUMP. 4. Check for gas leaks at connection points.

Pipe connection method
Flaring
1. Cut the pipe with a pipe cutter.
Correct 90°

Incorrect

Incorrect

Incorrect

Obliquity

Roughness

Warp

2. Remove the burr inside of the pipe. When removing the burr, be careful so that chips do not fall into the pipe. 3. Remove the flare nuts attached to the outdoor / indoor unit, then insert them into each of the pipes. 4. Flare the pipes. See the following table for the projection margin (A) and flaring size (B).

A

B

EN-25

Pipe

Outside diameter

Thickness

mm

mm

6.35

0.8

9.52

0.8

12.70

0.8

15.88

1.0

19.05

1.2

A

Rigid (clutch type) R410A tool

Imperial (wing nut type)
R410A tool

mm

mm

0 to 0.5

1.0 to 1.5

0 to 0.5

1.0 to 1.5

0 to 0.5

1.0 to 1.5

0 to 0.5

1.0 to 1.5

0 to 0.5

1.0 to 1.5

B

Flare Nut

Width across flat

Tighten torque

mm

mm

N·m

kgf·m

9.9

17

14 to 18

1.4 to 1.8

13.2

22

33 to 42

3.3 to 4.2

16.6

26

50 to 62

5.0 to 6.2

19.7

29

68 to 82

6.8 to 8.2

24.0

36

100 to 120 10.0 to 12.0

• In case of flaring for R410A with the conventional flare tool, pull the tool out approx. 0.5 mm more than that for R22 to adjust it to the specified flare size. The copper pipe gauge is useful for adjusting the projection margin size.

EN-26

ØC ØF
EN

REQUIREMENT
· For a brazing work of the refrigerant pipes, be sure to use nitrogen gas in order to prevent oxidation of the inside of the pipes; otherwise clogging of the refrigerating cycle due to oxidized scale may occur.
· Use clean and new pipes for the refrigerant pipes and perform piping work so that water or dust does not contaminate the refrigerant.

• Remove all flux after brazing. · Be sure to use a double spanner to loosen or tighten the flare nut. If a single spanner is used, the required level of
  tightening cannot be obtained. Tighten the flare nut with the specified torque. · Do not apply refrigerant oil to the surface of the flare.

Coupling size of brazed pipe

Connected section

External size

Internal size

K

G

Standard outer dia. of connected copper pipe
6.35 9.52 12.70 15.88 19.05 22.22

Connected section

External size

Internal size

Standard outer dia. (Allowable difference)

Min. depth of insertion

C

F

K

G

6.35 (±0.03) 9.52 (±0.03) 12.70 (±0.03) 15.88 (±0.03) 19.05 (±0.03) 22.22 (±0.03)

6.45

(

+0.04 -0.02

)

9.62

(

+0.04 -0.02

)

12.81

( ) +0.04 -0.02

16.00

( ) +0.04 -0.02

19.19

( ) +0.04 -0.02

22.36

( ) +0.03 -0.03

7

6

8

7

9

8

9

8

11

10

11

10

Oval value
0.06 or less 0.08 or less 0.10 or less 0.13 or less 0.15 or less 0.16 or less

(Unit: mm)
Min. thickness of coupling
0.50 0.60 0.70 0.80 0.80 0.90

Installation Manual

Selection of pipe materials and size
Selection of pipe material
Material: Phosphorus deoxidation seam-less pipe
Capacity code of indoor and outdoor units
· For the indoor unit, the capacity code is decided at each capacity rank. · The capacity codes of the outdoor units are decided at each capacity rank.
The maximum No. of connectable indoor unit and the total value of capacity codes of the indoor units are also decided.

Minimum pipe thickness for R410A application

Soft

Half Hard or Hard

OD (Inch)

Correct

Correct

1/4″

Correct

Correct

3/8″

Correct

Correct

1/2″

Correct

Correct

5/8″

Incorrect *1

Correct

3/4″

Incorrect *1

Correct

7/8″

*1 If the pipe size is Ø19.05, use a suitable material.

OD (mm) 6.35 9.52 12.70 15.88 19.05 22.22

Minimum pipe thickness (mm) 0.80 0.80 0.80 1.00 1.00 1.00

Table 1
Indoor unit capacity type
005 type 007 type 009 type 012 type 015 type 018 type 024 type

Capacity code

Equivalent to HP

Equivalent to capacity

0.6

1.7

0.8

2.2

1.0

2.8

1.25

3.6

1.7

4.5

2.0

5.6

2.5

7.1

Indoor unit capacity type
027 type 030 type 036 type 048 type 056 type 072 type 096 type

Capacity code

Equivalent to HP

Equivalent to capacity

3.0

8.0

3.2

9.0

4.0

11.2

5.0

14.0

6.0

16.0

8.0

22.4

10.0

28.0

Table 2
Outdoor unit capacity type
0806 type

Capacity code Equivalent to HP
8

No. of connetable indoor units
2 to 12

1006 type

10

2 to 16

Total capacity code of connectable indoor units

Min. (HP)

Max. (HP)

6.4

10.4

13.0 (When the number of indoor units is 2 to 12) 8.0
11.0 (When the number of indoor units is 13 to 16)

EN-27

­ 14 ­

EN-28

Pipe connection method of valve at the gas side (Example)

­ 15 ­

Installation Manual

CAUTION
· The brazed part of the pipe connection should be sufficiently away from the ball valve. · When carrying out brazing nearthe ball valve, wrap the ball valve in a wet cloth to keep it cool and prevent the heat
from the torch from damaging it, and, prepare a shield plate on-site to prevent the soundproofing cloth or other part from catching fire.

Diameter of pipe

Front and right leading out

Attach the Ø19.05 pipe to the ball valve by flare conection.
Ball valve

Downward direction leading out
Attach the Ø19.05 pipe to the ball valve by flare conection.
Ball valve

O.D. 19.05 mm

Ø19.05 Main pipe (Locally procured)

Ø19.05 Main pipe (Locally procured)

Wet cloth Brazing

Attach Ø19.05-Ø22.22 socket to the ball valve by

flare conection and braze the locally procured

Ø22.22 main pipe.

Ball valve

O.D. 22.22 mm

Ø19.05-Ø22.22 socket (Attached)
Ø22.22 Main pipe (Locally procured)

Attach Ø19.05 pipe to the ball valve by flare conection and braze the locally procured Ø19.05Ø22.22 socket and Ø22.22 main pipe.
Ball valve
Ø19.05 pipe (Locally procured)
Ø19.05-Ø22.22 socket (Locally procured)
Ø22.22 Main pipe (Locally procured)

EN-29

EN-30

EN

Selection of refrigerant piping
Outdoor unit

Gas pipe
Main pipe L1 (1)

Liquid pipe

1st branching Branching

section

pipe

(4)

(2)

Branching header
(5)

Height difference between indoor and outdoor units H1

(3)

(3)

Branching pipe
(2)

(3)

(3)

Y-shaped branching joint
(4)

(3) (3)

Indoor unit
Indoor unit

No. Piping parts – Outdoor unit

Name

Size of valve

Connection Valve

Gas side 19.05

Selection of pipe size
Liquid side 9.52

Remarks –

Installation Manual

Size of main pipe 0806 type

Outdoor unit

(1)

1st branching

section

Main pipe

Conditions for size of main pipe selection*

Height between

Equivalent

indoor and outdoor length of main

units H1(m)

pipe L1(m)

50 H > 40

No condition

40 H > 30

30 > L1 L1 30

30 H > 20

40 > L1 L1 40

20 H > 10

60 > L1 L1 60

10 H > 0

No condition

Size of main pipe

Gas Liquid pipe pipe

19.05

12.70 9.52 12.70 9.52 12.70 9.52 12.70 9.52

1006 type

Conditions for size of main pipe selection*

Height between

Equivalent

indoor and outdoor length of main

units H1(m)

pipe L1(m)

50 H > 30

No condition

30 H > 20

30 > L1 L1 30

20 H > 10

40 > L1 L1 40

10 H > 0

50 > L1 L1 50

Size of main pipe

Gas Liquid pipe pipe

22.22

12.70 9.52 12.70 9.52 12.70 9.52 12.70

*The main liquid pipe size differs based on outdoor unit capacity type, equivalent length of main pipe, and hight difference between outdoor and indoor units.

Pipe size between branching sections

(2)

Branching section Branching section

Branching pipe

Total capacity codes of indoor units at down stream
side

Equivalent to Equivalent to

HP

capacity

Below 2.4

Below 6.6

2.4 to below 6.6 to below

6.4

18.0

6.4 or more 18.0 or more

Gas pipe
12.70 15.88 22.22

Liquid pipe
9.52 9.52 12.70

Pipe size differs based on the total capacity code value of indoor units at the downstream side. If the total value exceeds the capacity code of the outdoor unit, apply the capacity code of the outdoor unit. (See Table 1 and 2.)

• When exceed the main pipe size, use the same size as the main pipe.

EN-31

­ 16 ­

EN-32

Connecting pipe size of indoor unit

Branching section Indoor unit

(3)

connecting

Indoor unit

pipe

Capacity rank 005 to 012 type 015 to 018 type 024 to 056 type 072 to 096 type

Gas pipe 9.52 12.70 15.88 22.22

Liquid pipe 6.35 6.35 9.52 12.70

Selection of branching section (Y-shaped branching joint)

Y-shaped
(4) Branching section branching joint

Y-sharp branch joint

Total capacity codes of indoor units at down stream side

Equivalent to Equivalent to

HP

capacity

Below 6.4

Below 18.0

6.4 or more 18.0 or more

Model name
RBM-BY55E RBM-BY105E

Selection of branching section (Branching header)

(5)

Branching section

Branching header

Branching header

For 4 branches For 8 branches

Model name RBM-HY1043E RBM-HY1083E

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Installation Manual

Selection of refrigerant piping for quiet place (with PMV Kit)

Outdoor unit

Gas pipe Main pipe L1
(1)
Height difference between indoor and outdoor units H1

Liquid pipe
1st branching section
(4)

Branching pipe
(2)

Branching header
(5)

(6)

(6)

(3) (3)

(6)

(3)

(3)

Branching pipe (2)

Y-shaped branching joint
(4)

PMV Kit
(6) Indoor unit

(6)

(6)

(3)

(3)

Indoor unit

No. Piping parts – Outdoor unit

Name

Size of valve

Connection Valve

Gas side 19.05

Selection of pipe size
Liquid side 9.52

Remarks –

EN-33

EN-34

EN

Size of main pipe 0806 type

Outdoor unit

(1)

1st branching

section

Main pipe

Conditions for size of main pipe selection*

Height between

Equivalent

indoor and outdoor length of main

units H1(m)

pipe L1(m)

50 H > 40

No condition

40 H > 30

30 > L1 L1 30

30 H > 20

40 > L1 L1 40

20 H > 10

60 > L1 L1 60

10 H > 0

No condition

Size of main pipe

Gas Liquid pipe pipe

19.05

12.70 9.52 12.70 9.52 12.70 9.52 12.70 9.52

1006 type

Conditions for size of main pipe selection*

Height between

Equivalent

indoor and outdoor length of main

units H1(m)

pipe L1(m)

50 H > 30

No condition

30 H > 20

30 > L1 L1 30

20 H > 10

40 > L1 L1 40

10 H > 0

50 > L1 L1 50

Size of main pipe

Gas Liquid pipe pipe

22.22

12.70 9.52 12.70 9.52 12.70 9.52 12.70

*The main liquid pipe size differs based on outdoor unit capacity type, equivalent length of main pipe, and hight difference between outdoor and indoor units.

Pipe size between branching sections

Total capacity codes of indoor units at down stream
side

Gas pipe

Pipe size differs based

Liquid pipe

on the total capacity code value of indoor

(2)

Branching section Branching section

Branching pipe

Equivalent to Equivalent to

HP

capacity

Below 2.4

Below 6.6

2.4 to below 6.6 to below

6.4

18.0

12.70 15.88

units at the downstream

side. If the total value

9.52

exceeds the capacity

code of the outdoor unit,

9.52

apply the capacity code

of the outdoor unit. (See

6.4 or more 18.0 or more 22.22

12.70 Table 1 and 2.)

• When exceed the main pipe size, use the same size as the main pipe.

Installation Manual

Connecting pipe size of indoor unit

Branching section Indoor unit

(3)

connecting

Indoor unit

pipe

Capacity rank 005 to 012 type 015 to 018 type 024 to 056 type 072 to 096 type

Gas pipe 9.52 12.70 15.88 22.22

Liquid pipe 6.35 6.35 9.52 12.70

Selection of branching section (Y-shaped branching joint)

Y-shaped
(4) Branching section branching joint

Y-sharp branch joint

Total capacity codes of indoor units at down stream side

Equivalent to Equivalent to

HP

capacity

Below 6.4

Below 18.0

6.4 or more 18.0 or more

Model name
RBM-BY55E RBM-BY105E

Selection of branching section (Branching header)

(5)

Branching section

Branching header

Branching header

For 4 branches For 8 branches

Model name RBM-HY1043E RBM-HY1083E

(6) PMV Kit

PMV Kit

Selection of PMV Kit

Capacity rank

Model name

005 to 012 type

RBM-PMV0363E, RBM-PMV0361U-E

015 to 027 type

RBM-PMV0903E, RBM-PMV0901U-E

• PMV kit can be connected less than 027 type FCU.

EN-35

­ 18 ­

EN-36

Allowable length / height difference of refrigerant piping
Outdoor unit

­ 19 ­

Installation Manual

Allowable length / height difference of refrigerant piping for quiet places (with PMV Kit)

Outdoor unit

Main pipe L1

Branching pipe L2

Branching header

Height difference between indoor and outdoor units H1

1st branching section
Branching pipe

L3

abcd

Indoor unit Equivalent length corresponded to farthest piping L Equivalent length corresponded to farthest piping after 1st branching Li

e

f

Y-shaped

branching joint

A *1

Height difference between indoor units H2

Piping Length
Height Difference

Total extension of pipe (liquid pipe, real length)

Furthest piping length L Real length

(*1)

Equivalent length

Max. equivalent length of main pipe

Max. real length of furthest piping from 1st branching Li (*1)

Max. real length of indoor unit connecting pipe

Height between indoor Upper outdoor unit and outdoor units H1 Lower outdoor unit

Height between indoor units H2

Allowable value 300 m 150 m 180 m
80 m(2)
70 m
15 m 50 m(2) 30 m(*2)
15 m

Pipes L1 + L2 + L3 + a + b + c + d + e + f
L1 + L3 + f L1
L3 + f a, b, c, d, e, f

1 Furthest indoor unit from 1st branch to be named “A”. 2 The main liquid pipe size varies depending on L1 and H1. See the page of “Selection of refrigerant piping” for
details.

Main pipe
L1

Branching pipe L2

Branching header

1st branching section

abcd

Height difference between indoor and outdoor units H1

Branching pipe L3

g

h

i

j

Indoor unit

Equivalent length corresponded to farthest piping L Equivalent length corresponded to farthest piping after 1st branching Li

PMV Kit
Height difference between indoor unit and PMV Kit H2 Between highest
unit and lower units.
Example)
H2

e

f

Y-shaped

H2

branching joint

k

l

A *1

H2

Piping Length
Height Difference

Total extension of pipe (Liquid pipe, real length)

Furthest piping length L Real length

(*1)

Equivalent length

Max. equivalent length of main pipe

Max. real length of furthest piping from 1st branching Li (*1)

Max. real length of indoor unit connecting pipe

Real length between PMV Kit and indoor unit

Height between indoor Upper outdoor unit and outdoor units H1 Lower outdoor unit
Height between indoor units (PMV Kit) H2

Allowable value
250 m
130 m 160 m 70 m(*2)

Pipes L1 + L2 + L3 + a + b + c + d + e + f + g + h
+ i + j + k + l
L1 + L3 + f + l
L1

60 m

L3 + f + l

15 m 2 m or more Below 10 m
50 m(2) 30 m(2)
15 m

a + g, b + h, c + i, d + j, e + k, f + l g, h, i, j, k, l

1 Furthest indoor unit from 1st branch to be named “A”. 2 The main liquid pipe size varies depending on L1 and H1. See the page of “Selection of refrigerant piping” for
details.

EN-37

EN-38

EN

NOTE

Do not connect two or more indoor units to one PMV Kit. Arrange one indoor unit and one PMV Kit set to 1 by 1.

Incorrect

Correct

PMV Kit

PMV Kit

Indoor unit

Indoor unit

Installation Manual

Airtight test
Before starting an airtight test, further tighten the spindle valves on the gas side and liquid side. Pressurize the pipe with nitrogen gas charged from the service port to the design pressure to conduct the airtight test. After the airtight test is completed, evacuate the nitrogen gas. · Apply pressure from the service ports of the packed valves (or ball valves) at liquid side and gas side. · An air tight test can be only performed to the service ports at liquid side and gas side of the outdoor unit. · Close fully valves at liquid side and gas side. As there is possibility that nitrogen gas enters in the refrigerant cycle,
re-tighten the valve rods before applying pressure. (Re-tightening of the valve rods are unnecessary for valves at gas side because they are ball valves.) · For each refrigerant line, apply pressure gradually with steps at liquid side and gas side. Apply pressure to gas side and liquid side.
REQUIREMENT
Do not use “Oxygen”, “Flammable gas” and “Noxious gas” in an airtight test.

Connected to indoor unit Main pipe

Ball valve fully closed (Gas side)
Outdoor unit

Low pressure High pressure

guage

guage

Gauge manifold

Flare connection

Flare connection

Ø6.4 Copper pipe Service port

Reducing valve

Service port
Packed valve fully closed (Liquid side)

Ø6.4 Copper pipe Nitrogen gas

To detect a gross leakage 1. Apply pressure 0.3 MPa (3.0 kg / cm2G) for 3 minutes or more. 2. Apply pressure 1.5 MPa (15 kg / cm2G) for 3 minutes or more.
To detect a slow leakage 3. Apply pressure 4.15 MPa (42.3 kg / cm2G) for approx. 24 hours.
· Check pressure down. No pressure down: Accepted Pressure down: Check the leaked position.

EN-39

­ 20 ­

EN-40

­ 21 ­

Installation Manual

NOTE
However, if the environmental temperature changes from the moment of applying pressure to 24 hours after that, the pressure will change by about 0.01 MPa (0.1 kg / cm2G) per 1 °C. Consider the pressure change when checking the test result.
REQUIREMENT
When pressure decrease is detected in steps 1-3, check the leakage at the connecting points. Check the leakage using a foaming agent or other measures and seal the leak with re-brazing, flare retightening or other methods. After sealing, execute an airtight test again.

Air purge
NOTE
For the air purge at installation time (Discharge of air in connecting pipes), use “Vacuum pump method” from viewpoint of the protection of the earths environment. · For protection of the earths environment, do not discharge the refrigerant gas in the air. · Eliminate the remaining air (nitrogen gas, etc.) in the unit by using a vacuum pump. If gas remains, performance and reliability of the unit may be reduced.

After the airtight test, discharge nitrogen gas. Then connect the gauge manifold to the service ports at gas side and liquid side, and connect the vacuum pump as shown in the following figure. Perform vacuuming for gas side and liquid side. · Perform vacuuming from both liquid and gas sides. · Use a vacuum pump with counter-flow preventive function so that oil in the pump does not back up in the pipe of the
air conditioner when the pump has been stopped. (If oil in the vacuum pump enters in to the air conditioner with R410A refrigerant, an error may occur in the refrigeration cycle.)

Connected to indoor unit

Low pressure High pressure

guage

guage

Main pipe

Ball valve fully closed (Gas side)
Outdoor unit

Gauge manifold

Flare connection

Flare connection

Service port

Service port
Packed valve fully closed (Liquid side)

Vacuum pump

· Use a vacuum pump that has a high vacuum (below -755 mmHg) and a large exhaust gas amount (over 40 L / minute).
· Perform vacuuming for 2 or 3 hours though time differs due to pipe length. In this time, check all valves at liquid and gas sides are fully closed.
· If vacuuming valve amount is not decreased to below -755 mmHg even after vacuuming for 2 hours or more, continue vacuuming for 1 hour or more. If -755 mmHg or less cannot be obtained by 3 hours or more vacuuming, detect and repair the leak.
· When the vacuuming valve has reached -755 mmHg or less after vacuuming for 2 hours or more, close valves VL and VH on the gauge manifold fully. Stop the vacuum pump, leave it as it is for 1 hour and then check the vacuum does not change. If it does change then there may be a leak within the system.
· After the above procedure for vacuuming has finished, exchange the vacuum pump with a refrigerant cylinder and advance to the additional charging of refrigerant.

EN-41

EN-42

EN

Adding refrigerant
After finishing vacuuming, exchange the vacuum pump with a refrigerant canister and start additional charging of refrigerant.
Calculation of additional refrigerant charge amount Default refrigerant amount does not include the refrigerant for pipes at the local site. For refrigerant to be charged in pipes at the local site, calculate the amount and charge it additionally.
NOTE
Do not degas the refrigerant from the air conditioner when the result of additional refrigerant charge amount calculation is negative value.

Outdoor unit type Charging amount (kg)

0806HS8 4.4

1006HS8 4.4

Additional refrigerant charge amount at local site

=

Real length of liquid pipe

×

Additional refrigerant charge amount per
1 m liquid pipe (Table 1)

Corrective amount of refrigerant depending
on the indoor units (Table 2)

Compensation by outdoor HP (Table 3)

Table 1
Liquid pipe dia. (mm)
Additional refrigerant amount / 1 m liquid pipe (kg / m)

6.35 0.025

9.52 0.055

12.70 0.105

Table 2

Capacity rank

005 007 009 012 015 018 024 027 030 036 048 056 072 096

Capacity code (Equivalent to HP)

0.6 0.8 1.0 1.25 1.7 2.0 2.5 3.0 3.2 4.0 5.0 6.0 8.0 10.0

4-way cassette

MMU-*P***HP

– – 0.4 0.4 0.8 0.8 0.8 0.8 0.8 1.2 1.2 1.2 – –

Compact 4-way cassette
2-way cassette

MMU-*PMH MMU-PWH*

0.3 0.4 0.4 0.4 0.6 0.6 – – – – – – – – 0.4 0.4 0.4 0.5 0.7 0.7 0.7 0.7 1.1 1.1 1.1 – –

1-way cassette

MMU-*P***YH / SH – 0.4 0.4 0.4 0.5 0.5 0.6 – – – – – – –

MMU-*P***YHP

0.3 0.3 0.3 0.3 0.4 0.4 0.5 0.5 – – – – – –

Indoor unit model name

Concealed duct Slim duct Compact slim duct Concealed duct High static pressure Ceiling

MMD-*P*BHP MMD-AP**SPH MMD-PSPHY
MMD-PHP
MMC-P***HP

– 0.3 0.3 0.3 0.5 0.5 0.8 0.8 0.8 1.1 1.1 1.1 – 0.3 0.3 0.3 0.3 0.5 0.5 0.8 0.8 – – – – – 0.3 0.4 0.4 0.4 0.5 0.5 0.7 0.7 – – – – – –
– – – – – 0.7 0.7 0.7 – 1.1 1.1 1.1 2.1 2.1
– – – – 0.6 0.6 0.8 0.8 – 1.2 1.2 1.2 – –

High wall

MMK-APH MMK-PHP*

– 0.5 0.5 0.5 0.7 0.7 0.7 – – – – – – 0.3 0.3 0.3 0.3 0.7 0.7 0.7 0.9 0.9 0.9 – – – –

Floor standing

MMF-*P***H

Floor standing cabinet MML-*P***H

– – – – 0.7 0.7 1.0 1.0 – 1.3 1.3 1.3 – – 0.5 0.5 0.5 0.5 0.8 0.8 – – – – – – –

Console

MML-*P***NH(P)

– 0.5 0.5 0.5 0.5 0.5 – – – – – – – (Unit: kg)

Installation Manual

Mid temperature Hot water module

Capacity rank

027

056

Capacity code

Equivalent to Capcity

7.1

14.0

Equivalent to HP

2.5

5.0

MMW-*P***LQ

0.2

0.4

Table 3 Outdoor unit type Compensation by outdoor HP (kg)

0806HS8 ­1.0

1006HS8 ­1.0

Example: (1006 type)

L1

L2

L3

L4

L5

L6

L7

A

B

C

D

L1

Ø9.52: 10 m

L2

Ø9.52: 10 m

L3

Ø9.52: 5 m

L5

Ø6.35: 3 m

L6

Ø6.35: 4 m

L7

Ø6.35: 5 m

A

MMU-UP0561HP*

B

MMU-UP0181HP*

C

MMU-UP0071MH*

Additional charge amount R (kg) = ( Lx × 0.025 kg/m) + ( Ly × 0.055 kg/m) + ( a + b + c + d ) + ( ­1.0 kg ) = ( 12 × 0.025 kg) + ( 28 × 0.055 kg) + ( 2.7 kg ) + ( ­1.0 kg ) = 3.54 kg

L4

Ø9.52: 3 m

D MMD-UP0051SPHY*

Lx: Real total length of liquid pipe diameter 6.35 mm (m) Ly: Real total length of liquid pipe diameter 9.52 mm (m) a: Corrective amount of refrigerant depending on the unit A [kg] b: Corrective amount of refrigerant depending on the unit B [kg] c: Corrective amount of refrigerant depending on the unit C [kg] d: Corrective amount of refrigerant depending on the unit D [kg]

Charging of refrigerant · Keeping the valve of the outdoor unit closed, be sure to charge the liquid refrigerant into the service port at the
liquid side. · If the specified amount of refrigerant cannot be charged, fully open the valves of the outdoor unit at liquid and gas
sides, operate the air conditioner in COOL mode, and then charge refrigerant into service port at the gas side. In this time, choke the refrigerant slightly by operating the valve of the canister to charge liquid refrigerant. · The liquid refrigerant may be charged suddenly, therefore be sure to charge refrigerant gradually.

EN-43

­ 22 ­

EN-44

­ 23 ­

Installation Manual

Full opening of the valve
Open the valves of the outdoor unit fully.

Liquid side Packed valve Using a 4 mm-hexagonal wrench, fully open the valve rods.
Charge port

Gas side
Ball valve Using a minus screwdriver, turn it counterclockwise by 90° until it hits the stopper. (Full open).
Body cap

Body cap

Charge port

Using a minus screwdriver, turn it counterclockwise by 90° until it hits the stopper. (Full open)
Flare nut

Grooves

Closed

for

Opened fully

completely driver

Refer to the table below when you tight the valve cap

Valve
Liquid side Gas side

Tightening force[N·m]

Body cap

Charge port

14 ~ 18

14 ~ 18

20 ~ 25

14 ~ 18

F-GAS label

Contains fluorinated greenhouse gases · Chemical Name of Gas · Global Warming Potential (GWP) of Gas

R410A 2088 (ex.R410A ref.AR4)

CAUTION

(1) Stick the enclosed refrigerant label adjacent to the service ports for charging or recovering location and where possible adjacent to existing nameplates or product information label.
(2) Clearly write the charged refrigerant quantity on the refrigerant label using indelible ink. Then, place the included transparent protective sheet over the label to prevent the writing from rubbing off.
(3) Prevent emission of the contained fluorinated greenhouse gas. Ensure that the fluorinated greenhouse gas is never vented to the atmosphere during installation, service or disposal. When any leakage of the contained fluorinated greenhouse gas is

EN-45

detected, the leak shall be stopped and repaired as soon as possible. (4) Only qualified service personnel are allowed to access and service this product. (5) Any handling of the fluorinated greenhouse gas in this product, such as when moving the product or recharging the gas, shall comply under (EU) Regulation No.517/2014 on certain fluorinated greenhouse gases and any relevant local legislation. (6) Periodical inspections for refrigerant leaks may be required depending on European or local legislation. (7) Contact dealers, installers, etc., for any questions.

Heat insulation for pipe

· Apply heat insulation of pipe separately at the liquid, gas, and balance sides. · Be sure to use thermal insulator resistant up to 120 °C or higher for pipes at the gas side.

Finishing after connecting pipes

· After piping connection work has been finished, cover the opening of the piping / wiring panel with the piping cover, or fill silicon or putty into the space between the pipes.
· In case of drawing-out the pipes downward or sideward, also close the openings of the base plate and the side plate. · Under the opened condition, a problem may be caused due to the entering of water or dust.

When using the piping cover

When not using the piping cover

Drawing-out sideward

Drawing-out frontward

Drawing-out downward

Close the opening with the pipe cover.

Pipe holding bracket
Attach pipe holding brackets following the table below.

Diameter of pipe (mm) Ø19.05 or less Ø22.22 or more

Interval 2 m 3 m

Drawing-out frontward

Drawing-out sideward

Drawing-out downward

Fill silicon or putty into the periphery of the pipes.

EN-46

EN

6 Electric Wiring
WARNING
The appliance shall be installed in accordance with national wiring regulations. Capacity shortages of the power circuit or an incomplete installation may cause an electric shock or fire.
CAUTION
· Perform wiring of power supply complying with the rules and regulations of the local electric company.
· Do not connect 380-415 V power to the terminal blocks for control cables (U1, U2, U3, U4); otherwise, the unit may break down.
· Be sure that electric wiring does not come into contact with hightemperature parts of piping; otherwise, the coating of cables may melt and cause an accident.
· After connecting wires to the terminal block, take off the traps and fix the wires with cord clamps.
· Do not conduct power to indoor units until vacuuming of the refrigerant pipes has finished.
· For the wiring of power to indoor units and that between indoor and outdoor units, follow the instructions in the installation manual of each indoor unit.

Installation Manual

Power wiring selection Standard model
Model MCY-MHP0806HS8-E MCY-MHP1006HS8-E

MCA: Maximum Circuit Amps MOCP: Maximum Overcurrent Protection (Amps)

Power Supply Nominal Voltage, Phase and frequency

MCA (A)

MOCP (A)

380-415V 3N~, 50Hz

17.0

20.0

20.0

25.0

Circuit breaker (Earth leakage breaker)

Main switch (Fuse)

EN-47

­ 24 ­

EN-48

­ 25 ­

Installation Manual

Specifications for communication wiring
Design of communication wiring Summary of communication wiring
Outdoor unit

Central controller U1 U2 U3 U4
Uv Uv (U1) (U2)

U1 U2 U3 U4
Communication wiring between indoor and outdoor units (Shield wire)
Communication wiring between indoor units (Shield wire)

A B Uv Uv
(U1) (U2)
Indoor unit

A B Uv Uv
(U1) (U2)
Indoor unit

A B Uv Uv
(U1) (U2)
Indoor unit

A B Uv Uv
(U1) (U2)
Indoor unit

AB Remote controller

AB Remote controller

AB
Remote controller (Group control)

Communication wiring and central control wiring use 2-core non-polarity wires. Use 2-core shield wires to prevent noise trouble. In this case, for the system grounding, close (connect) the end of shield wires, and isolate the end of terminal. Use 2-core non-polarity wire for remote controller. (A, B terminals) Use 2-core non-polarity wire for wiring of group control. (A, B terminals)

Keep the rule of below tables about size and length of communication wiring.

Central controller
U1 U2 U3 U4

Outdoor unit

U3 U4

U1 U2

Uv Uv (U1) (U2)

L1

This system L4
U3 U4 U1 U2
L2

Table-1

Other system

Header unit
U3 U4

Follower unit
U3 U4

U1 U2 U5 U6 U1 U2 U5 U6

Table-1

Table-2 L5

L3

Indoor unit

Uv Uv (U1) (U2)
AB

Uv Uv (U1) (U2)
AB
Table-3

Uv Uv (U1) (U2)
AB

Uv Uv (U1) (U2)
AB

L7

Remote controller

Remote controller

Uv Uv (U1) (U2)
AB
L6

Uv Uv (U1) (U2)
AB

Uv Uv (U1) (U2)
AB

Uv Uv (U1) (U2)
AB

L7 L6
Remote controller

Uv Uv (U1) (U2)
AB

Table-1

Control wiring between indoor and outdoor units (L1, L2, L3), Central control wiring (L4)

Wiring

2-core, non-polarity

Type Size / Length *1

Shield wire 1.25 mm2: Up to 1000 m 2.0 mm2: Up to 2000 m

*1 Total of control wiring length for all refrigerant circuits ( L1 + L2 + L3 + L4 )

Table-2

Control wiring between outdoor units (L5) (Other system)

Wiring

2-core, non-polarity

Type Size / Length

Shield wire
1.25 mm2 to 2.0 mm2 Up to 100 m (L5)

Table-3 Wiring Size
Length

Remote controller wiring (L6, L7)
2-core 0.5 mm2 to 2.0 mm2
· Up to 500 m (L6 + L7) · Up to 400 m with of wireless remote controller in group control. · Up to 200 m total length of control wiring between indoor units ( L6 )

EN-49

EN-50

EN

Group control through a remote controller

Group control of multiple indoor units (8 units) through a single remote controller

Indoor unit No.1

No.2

No.3

No.4

No.7 No.8

AB

AB

AB

AB

Remote controller

(A.B)

AB

AB

Connection of power wires and communication wires
Remove knockouts on the piping / wiring panel on the front of the unit or the panel on the bottom to get the power and communication wires through the holes. Use protective parts (such as jugged bushings) to prevent the power wires and communication wires from directly touching the edge of the sheet metal. The local installer must purchase the non-removable jugged bushings to wrap around the hole, and use insulated bushings (locally purchased) to protect the wires from directly touching the sheet metal.

Remove the front panel and then remove the cover of the electrical control box.

Installation Manual

Knockout for the communication wires and refrigerant piping
NOTE
Separate the power wire and communication wires.

Jugged bushings (locally purchased)

The cover of the electrical control box

Terminal block (Communication)
Earth screw (Communication)
Cord clamp (Communication) Terminal block (Power supply)
Earth screw (Power supply)
Cord clamp (Power supply)
Power supply wires
Communication wires

EN-51

­ 26 ­

EN-52

­ 27 ­

Installation Manual

Power supply wire connection
1. Insert the power supply wire through the cutout on the side of the electrical control box and connect the power supply wire to the power supply terminal block and the earth line to the earth screw. After that, fix the power supply wire with the cord clamp.
2. Use round-type crimping terminals for power connection. Also, apply insulating sleeves to the crimping parts. Use a driver of appropriate size to fix the terminal screws.
L1 L2 L3 N
L1 L2 L3 N

60 mm or less Power supply wire

10 mm or more Earth line

Wire size 4.0 mm2 Design 60245 IEC66 Screw size and tightening torque
Power supply terminal Earth screw

Screw size
M6 M8

Tightening torque (N·m)
2.5 to 3.0
5.5 to 6.6

Communication wire connection
Connect the communication wires to the communication wire terminals from under the electrical control box, and fix them with the communication cable clamps.

[U1, U2] and [U3, U4] not connected [U1, U2] and [U3, U4] connected

CN02

CN02

CN10

U1 U2 U3 U4

CN10

Communication terminal board

U1 U2 U3 U4

TO INDOOR TO CENTRAL

UNIT

CONTROLLER

U1 U2 U3 U4
Communication terminal board

U1 U2 U3 U4

TO INDOOR TO CENTRAL

UNIT

CONTROLLER

Screw size and tightening torque Communication wire terminal

U3, U4: Central control device U1, U2: Communication wiring between Indoor / Outdoor unit

Screw size M4

Tightening torque (N·m)
1.2 to 1.4

EN-53

EN-54

EN

Regulation of high frequency wave

This equipment complies with IEC 61000-3-12 provided that the short-circuit power Ssc is greater than or equal to Ssc (1) at the interface point between the user’s supply and the public system. It is the responsibility of the installer or user of the equipment to ensure, by consultation with the distribution network operator if necessary, that the equipment is connected only to a supply with a short-circuit power Ssc greater than or equal to Ssc (1).

Furthermore, when similar equipment or other equipment which may cause harmonic current emissions are to be connected to the same interface point with this equipment, to reduce the risk of possible problems which may be caused from addition of those harmonic current emissions, it is recommended to make sure that the short-circuit power Ssc at the interface point is greater than the sum of the minimum Ssc required by all the equipment which will be connected to the interface point.

Ssc (*1)
Model MCY-MHP0806HS8-E MCY-MHP1006HS8-E

Ssc (kVA) 1596

This unit complies with EN 61000-3-11. However, the impedance of the power supply system to be connected to the unit at the incoming power point must be less than the Zmax given below. In order to meet this condition, consult with the supply authority as required.
Zmax = 0.39 (Ù)
In addition, it is recommended that voltage drops occurring during the unit’s operation in the area at the power input shall be around 3.3% of the nominal power-supply voltage or less.

Installation Manual
7 Address Setting
On this unit, it is required to set the addresses of the indoor units before starting air conditioning. Set the addresses following the steps below.
CAUTION
· Be sure to complete the electric wiring before setting the addresses.
· If you turn on the outdoor unit before turning on the indoor units, the CODE No. [E19] is indicated on the 7-segment display on the interface P.C. board of the outdoor unit until the indoor units are turned on. This is not a malfunction.
· It may take up to ten minutes (normally about five minutes) to address one refrigerant line automatically.
· Settings on the outdoor unit are required for automatic addressing. (Address setting is not started simply by turning on the power.)
· Running the unit is not required for address setting. · The addresses can be set manually.
Automatic addressing: setting addresses using SW15 on the interface P.C. board on the outdoor unit
Manual addressing: setting addresses on the wired remote controller.

• When setting an address manually, the wired remote controller must temporarily be paired with an indoor unit one-to-one. (when the system is organized for group operation and no Remote controller)
  REQUIREMENT
  High voltage parts exist in the electrical control box. If you set addresses on an outdoor unit, operate the unit through the cover of electrical control box, to avoid electric shock. Do not remove the cover of electrical control box.

EN-55

­ 28 ­

EN-56

­ 29 ­

Installation Manual

Automatic address setting
No central control (single refrigerant line): Central control of 2 or more refrigerant lines:

go to Address setting procedure 1 go to Address setting procedure 2

(Example) Address setting procedure

When controlling a single refrigerant line centrally
To procedure 1

When controlling 2 or more refrigerant lines centrally
To procedure 2

System wiring diagram

Outdoor Central Outdoor Central

controller

controller

Indoor Indoor Indoor Indoor

Outdoor

Outdoor Central controller

Indoor Indoor Indoor Indoor

Remote Remote Remote controller controller controller

Remote Remote Remote controller controller controller

Address setting procedure 1
1 Turn on indoor units first, and then turn on outdoor units. 2 About one minute after turning the power on, confirm that the 7-segment display on the interface P.C.
board of the outdoor unit indicates U. 1. L08 (U. 1. flash) .
3 Press SW 15 to start the automatic address setting.
(It may take up to 10 minutes (normally about 5 minutes) to complete one line’s setting.)
4 The 7-segment display indicates Auto 1 Auto 2 Auto 3 .
After the indication, U. 1. – – – (U. 1. flash) starts flashing on the display. When the flashing stops and U. 1. – – – (U. 1. light) remains lit on the display, the setting is complete.
Interface P.C. board on the outdoor unit

SW04 SW05 SW15

3

D600 D601 D602 D603 D604

2, 4

SW01 SW02 SW03

REQUIREMENT
· When 2 or more refrigerant lines are controlled as a group, be sure to turn on all the indoor units in the group before setting addresses.
· If you set the unit addresses of each line separately, each line’s header indoor unit is set separately. In that case, the CODE No. “L03” (Indoor header unit overlap) is indicated as running starts. Change the group address to make one unit the header unit using wired remote controller.

(Example)

Controlling 2 or more refrigerant lines as a group

Outdoor

Outdoor

System wiring diagram

Indoor Indoor Indoor Indoor

Remote controller

(Group control)

Address setting procedure 2
1 Set a system address for each system using SW 13 and 14 on the interface P.C. board on the outdoor unit
of each system. (Factory default: Address 1)
NOTE
Be sure to set a unique address on each system. Do not use a same address as another system (refrigerant line) or a custom side.

Interface P.C. board on the outdoor unit

SW06

SW07

SW09

SW10

1 2 34
SW11

1 2 34
SW12

1 2 34
SW13

1 2 34
SW14

1234 1234 1234 1234

EN-57

EN-58

EN

Switch settings for a line (system) address on the interface P.C. board on the outdoor unit ( : switch ON, : switch OFF)

SW13

SW14

Line (system) address

1

2

3

4

1

2

3

4

1

­

­

­

2

­

­

­

3

­

­

­

4

­

­

­

5

­

­

­

6

­

­

­

7

­

­

­

8

­

­

­

9

­

­

­

10

­

­

­

11

­

­

­

12

­

­

­

13

­

­

­

14

­

­

­

15

­

­

­

16

­

­

­

17

­

­

­

18

­

­

­

19

­

­

­

20

­

­

­

21

­

­

­

22

­

­

­

23

­

­

­

24

­

­

­

25

­

­

­

26

­

­

­

27

­

­

­

28

­

­

­

“­”: not used for system address setting (Do not change their positions.)

Installation Manual
2 In all the outdoor units connected to the central control, please make sure that the relay connector of the
interface P.C. board “CN10” has not been connected to the “CN02”.
NOTE
If you connect a relay connector “CN10” to “CN02”, the communication line [U1, U2] will be connected to [U3, U4]. If [U1, U2] is connected to the [U3, U4], refrigerant line address cannot be set correctly.
)
[U1, U2] and [U3, U4] not connected
CN02

U1 U2 U3 U4

CN10

Communication terminal board

U1 U2 U3 U4

TO INDOOR TO CENTRAL

UNIT

CONTROLLER

3 Turn on indoor units first, and then turn on outdoor units. 4 About 1 minute after turning the power on, confirm that the 7-segment display on the interface P.C. board
of the outdoor unit indicates U. 1. L08 (U. 1. flash) .
5 Press SW 15 to start the automatic address setting.
(It may take up to 10 minutes (normally about 5 minutes) to complete one line’s setting.)
6 The 7-segment display indicates Auto 1 Auto 2 Auto 3 .
After the indication, U. 1. – – – (U. 1. flash) starts flashing on the display. When the flashing stops and U. 1. – – – (U. 1. light) remains lit on the display, the setting is complete.
7 Repeat steps 4 to 6 for other refrigerant lines. 8 After completing address setting of all systems, turn off dip switch 2 of SW30 on the interface P.C. boards of
all the outdoor units connected to the same central control, except the unit that has the lowest address. (For unifying the termination of the wiring for the central control of indoor and outdoor units)

EN-59

­ 30 ­

EN-60

­ 31 ­

Installation Manual

Header unit interface P.C. board

SW06 SW07 SW09 SW10 SW11 SW12 SW13 SW14 SW16 SW17

SW04 SW05 SW15 D600 D601 D602 D603 D604 SW01 SW02 SW03

SW30

SW30

9 Connect the relay connectors “CN10” to “CN02”, which are mounted on the interface P.C. boards of all
the outdoor units connected to the central control.
NOTE
Please make sure that before you perform this task, address setting of the refrigerant line all have been completed.
[U1, U2] and [U3, U4] connected

CN02

CN10

U1 U2 U3 U4
Communication terminal board

U1 U2 U3 U4

TO INDOOR TO CENTRAL

UNIT

CONTROLLER

10 Set the central control address.
(For the setting of the central control address, refer to the installation manuals of the central control devices.)

EN-61

Switch setting (setting example when controlling 2 or more refrigerant lines centrally)

Outdoor units (setting manually)

*The items in bold font must be set manually.

Outdoor unit’s interface P.C. board
SW13, 14 (Line (system) address)
Dip switch 2 of SW30 (Terminator of indoor / outdoor communication line and central control line)
Relay connector

Outdoor unit 1
ON
Connect after setting addresses.

Outdoor unit 2
Set to OFF after setting addresses.
Connect after setting addresses.

Outdoor unit
3
Set to OFF after setting addresses.
Connect after setting addresses.

Factory default 1 ON
Open

Outdoor unit [U1, U2] and [U3, U4] connected

CN02
U1 U2

U3 U4
CN10

Uv Uv (U1) (U2)

Outdoor unit [U1, U2] and [U3, U4] connected

CN02
U1 U2

U3 U4
CN10

Outdoor unit [U1, U2] and [U3, U4] connected

CN02
U1 U2

U3 U4
CN10

Central controller

Uv Uv (U1) (U2)
AB

Uv Uv (U1) (U2)
AB

Uv Uv (U1) (U2)
AB

Uv Uv (U1) (U2)
AB

Uv Uv (U1) (U2)
AB

Remote controller

Remote controller

Individual

Indoor units (automatic setting)

Line (system) address Indoor unit address Group address

CAUTION

Remote controller
Group

1

1

2

1

2

1

0

0

1

Remote controller

2

3

2

1

2

0

Relay connector connection Never connect relay connectors between the [U1, U2] and [U3, U4] terminals before completing address setting of all the refrigerant lines. Otherwise, the addresses cannot be set correctly.

EN-62

EN

Manual address setting with the remote controller
Procedure when setting indoor units’ addresses first under the condition that indoor wiring has been completed and outdoor wiring has not been started (manual setting using the remote controller)

Wiring example of 2 refrigerant lines

Refrigerant line 1

Refrigerant line 2

Outdoor unit

Outdoor unit

Remote controller

Indoor unit 1 Indoor unit 2 Indoor unit 3

Indoor unit 1 Indoor unit 2

Line (system) address Indoor unit address
Group address

1
1
1 Header unit

1

1

2

3

2

2

Follower unit Follower unit

2

2

1

2

2

2

Follower unit Follower unit

In the example above, disconnect the remote controller connections between the indoor units and connect a wired remote controller to the target unit directly before address setting.

2, 5, 8 SET DATA 4, 7, 10 11

SET DATA SETTING
TEMP.

UNIT No. R.C. No.

CODE No.

ON / OFF

TIMER SET

FILTER RESET TEST

TIME SET CL

CODE No.
3, 6, 9
1

Pair the indoor unit to set and the remote controller one-to-one.

Turn on the power.

1 Push and hold the , , and
LCD starts flashing.

buttons at the same time for more than 4 seconds.

Installation Manual

<Line (system) address>

2 Push the TEMP.

/

buttons repeatedly to set the CODE No. to .

3 Push the TIME / buttons repeatedly to set a system address.

(Match the address with the address on the interface P.C. board of the outdoor unit in the same refrigerant line.)

4 Push the button.

(It is OK if the display turns on.)