Toshiba R410A User manual

Q ui c k referen c e
SHRM
File No. A13-004
SUPER HEAT RECOVERY MULTI (UL Model)
R410A

01
La Lb
(b)
(a)
L1
L3
L2
fgh
cab
kl
L8
ij (m)
on
(o)
(n)
dem
L4
L5 L6 L7
Outdoor Unit
Header unit (A) Follower unit (B)
Height difference
between outdoor units
H3 ≤0.3 ft (0.1 m)
Outdoor unit connecting pipes
Main
piping
Height
difference
between
outdoor
and indoor
units:
H1 ≤165 ft
(50 m)
First branching
section
FS unit
Branching pipe Branching header
Indoor unit connecting pipe
Indoor unit
Y-shape branching joint
The longest piping length: L ≤640 ft (195 m)
The longest piping length from the first branch: Li ≤215 ft (65 m)
Max. equivalent piping length in group of the FS unit: Ln ≤98 ft (30 m)
Y-joint
FS unit
Indoor unit
Height difference
between indoor units:
H2 ≤130 ft
(40 m)
Height difference
between indoor units
in same FS unit
H4 ≤1.6 ft
(0.5 m)
Allowable length of refrigerant pipes and allowable height difference between units
Refrigerant Piping
System restriction
Max. No. of combined outdoor units 2 units
Max. capacity of combined outdoor units 20 ton
Max. No. of connected indoor units 40 units
Max. capacity of combined indoor units H2 ≤49 ft (15 m) 125 %
H2 > 49 ft (15 m) 105 %

02
Pipe length
Height
difference
985 (300)Actual lengthTotal extension of pipe (liquid pipe) La + Lb + L1 + L2 + L3 + L4 + L5 + L6 + L7
+ a + b + c + d + e + f + g + h + i + j
295 (90) (*2)
Farthest equivalent piping length from the first
branch Li (*1) L3 + L4 + L5 + L6 + j
720 (220) Equivalent length
Farthest piping length L (*1) Lb + L1 + L3 + L4 + L5 + L6 + j
230 (70) (*3)
Upper outdoor
units
Height between outdoor and indoor
units H1
—
130 (40) (*4)
Lower outdoor
units —
130 (40)Height between indoor units H2 —
16 (5)Height between outdoor units H3 —
590 (180)Actual length
395 (120) Equivalent length
Main piping length L1
330 (100)Actual length
33 (10)
Maximum equivalent piping length of pipes
connected to outdoor units La, Lb
98 (30)
Maximum actual length of pipes connected to
indoor units a, b, c, d, e, f, g, h, i, j
165 (50)
Maximum equivalent length between branching
sections L2, L3, L4, L5, L6, L7
Item Allowable
value (ft (m)) Pipes
Cautions for installation
• The header unit is connected to main piping to indoor units.
• The header unit is the one with the highest capacity code. A (header unit) ≥B
• To connect gas pipes to indoor units, use Y-shaped branching joints to keep pipes level.
• When Outdoor unit connection piping kits is used to pipe to outdoor units, intersect the pipes to the outdoor unit
and those to indoor units.
Allowable length and allowable height difference of refrigerant piping
*1: Farthest outdoor unit from the first branch: (B), farthest indoor unit: (j)
*2: Make the difference 215 ft (65 m) or less if the height difference between outdoor and indoor units (H1) is more than 10 ft (3 m).
*3: Make the difference 165 ft (50 m) or less if the height difference between indoor units (H2) is more than 10 ft (3 m).
*4: Make the difference 98 ft (30 m) or less if the height difference between indoor units (H2) is more than 10 ft (3 m).

03
AB
(1) (4)
(1)
(9)
(4)
(7)
(4)
(4)
(4) (*2)
(5)(5)
(6) (6)
(4) (4) (*2) (7)
(4)
(6) (6) (6)
(5)(5)
(4) (4)
(4) (*2) (7) (7)
(7)
(Header unit) (Follower unit)
Outdoor unit
(2) Balance pipe
Ø3/8"
Liquid pipe
Discharge
gas pipe
Suction
gas pipe
(3) Main piping
First branch section
FS unit
Indoor unit (*7) <Group control>
In case of two or more indoor units are connected
with FS unit
(8) Branching header
(7) Y-shaped branching joint
<Cooling only> <Cooling only>
Table 1
Indoor unit
capacity type
Outdoor unit
capacity type
Maximum number of indoor units
Outdoor
capacity code
(Equivalent
to capacity)
If “Medium Static Ducted Type
(MMD-AP***BH)”
is excluded in the system
If “Medium Static Ducted Type
(MMD-AP***BH)”
is included in the system
007 type
009 type
012 type
015 type
018 type
021 type
024 type
027 type
030 type
036 type
042 type
048 type
054 type
072 type
096 type
Indoor capacity code
(Equivalent to capacity)
7.5
9.6
12
15.4
18
21
24
27
30
36
42
48
54
72
96
10
13
16
20
23
26
30
33
11
15
19
23
26
30
34
38
10
13
16
20
23
26
30
33
12
16
20
24
28
32
36
40
72
96
120
144
168
192
216
240
072 type
096 type
120 type
144 type
168 type
192 type
216 type
240 type
Height difference between
indoor units
Height difference between
indoor units
Table 2
49ft(15m) or
less
Over 49ft
(15m)
49ft(15m) or
less
Over 49ft
(15m)
* For combination of the outdoor units, refer to “Combination of outdoor units”.
Refrigerant Piping (Continued)
Selection of pipe size
Capacity code of indoor and outdoor units
Selection of pipe material
• For the indoor unit, the capacity code is decided at each capacity type. (Table 1)
• The capacity codes of the outdoor units are decided at each capacity type. The maximum number of connectable
indoor units and the total value of capacity codes of the indoor units are also decided. (Table 2)
NOTE
Compared with the capacity code of the outdoor unit, the total value of capacity codes of the connectable indoor
units differs based on the height difference between the indoor units.
When the height difference between the indoor units is 49ft (15m) or less
If “Medium Static Ducted Type (MMD-AP***BH)” is excluded in the system: Total indoor capacity code is between
80% and 125% of the capacity of the outdoor unit.
If “Medium Static Ducted Type (MMD-AP***BH)” is included in the system: Total indoor capacity code is between
80% and 120% of the capacity of the outdoor unit.
When the height difference between the indoor units is over 49ft (15m)
Total indoor unit capacity code (Equivalent to Capacity) is between 80% and 105% of the capacity of the outdoor unit.

04
Selection of pipe size
<144 to 240 type>
Outdoor unit
↓
Outdoor unit
connection piping kit
Outdoor unit
connecting pipe
Model
072 type
096 type
120 type
Balance pipe side
Ø3/8"
Ø3/8"
Ø3/8"
Suction gas side
Ø7/8"
Ø7/8"
Ø1-1/8"
Discharge gas side
Ø3/4"
Ø3/4"
Ø3/4"
Liquid side
Ø1/2"
Ø1/2"
Ø1/2"
No.
(1)
Title Use part Selection of pipe size
Outdoor unit
connection piping Balance pipe Outdoor unit capacity type
144 to 240 type
Balance pipe
Ø3/8"
(2)
Flow Selector unit
↓
Indoor unit
Indoor unit
connecting pipe
Indoor unit capacity type
007 to 012 type
015 to 018 type
021 to 048 type
Gas side
Ø3/8"
Ø1/2"
Ø5/8"
Liquid side
Ø1/4"
Ø1/4"
Ø3/8"
(5)
<072 to 120 type>
Outdoor unit
↓
First branching section
<144 to 240 type>
Outdoor unit
connection piping
kit of header unit
↓
First branching section
Main piping
Outdoor unit capacity type (kBtu)
072, 096 type
120 type
144 type
168, 192 type
216, 240 type
Suction gas side
Ø7/8"
Ø1-1/8"
Ø1-1/8"
Ø1-1/8"
Ø1-3/8"
Discharge gas side
Ø3/4"
Ø3/4"
Ø7/8"
Ø7/8"
Ø1-1/8"
Liquid side
Ø1/2"
Ø1/2"
Ø5/8"
Ø3/4"
Ø3/4"
(3)
Ø3/8"
Ø1/2"
Ø5/8"
Ø3/4"
Ø3/4"
Ø1/2"
Ø3/4"
Ø7/8"
Ø7/8"
Ø1-1/8"
Ø5/8"
Ø7/8"
Ø1-1/8"
Ø1-1/8"
Ø1-3/8"
Below 61
61 to below 116
116 to below 155
155 to below 193
193 or more
Branching section
↓
Branching section
Branching section
↓
Flow Selector unit
Flow Selector unit
↓
Branching section
Branching pipe
(*1)(*2)(*6)
Total capacity codes of indoor units
at downstream side (kBtu/h) (*6) Suction gas side Discharge gas side Liquid side
(4)
Branching section
Y-shaped
branching joint
(*3)(*4)
Total capacity codes of indoor units (kBtu/h) Model name
(7)
For 3 pipes
RBM-BY55FUL
RBM-BY105FUL
RBM-BY205FUL
For 2 pipes
RBM-BY55UL
RBM-BY105UL
RBM-BY205UL
Below 61
61 to below 136
136 or more
Terminal
branching section
↓
Indoor unit
Indoor unit
connecting pipe
Indoor unit capacity type Gas side
Ø3/8"
Ø1/2"
Ø1/2"
Ø5/8"
Ø5/8"
Liquid side
Ø1/4"
Ø3/8"
Ø1/4"
Ø3/8"
Ø3/8"
(6)
007 to 012 type Pipe length
(Actual length)
015 to 018 type
021 to 048 type
Pipe length
(Actual length)
49 ft or less
Over 49 ft
49 ft or less
Over 49 ft
Branching section
Branching
header
(*3)(*4)(*5)
Total capacity codes of indoor units (kBtu/h) Model name
(8)
For 2 pipes
RBM-HY1043UL
RBM-HY2043UL
RBM-HY1083UL
RBM-HY2083UL
For 3 pipes
RBM-HY1043FUL
RBM-HY2043FUL
RBM-HY1083FUL
RBM-HY2083FUL
For 4 branching
For 8 branching
Below 136
136 or more
Below 136
136 or more
Below 38
38 to below 61
61 to 96 or less
5
8
8
RBM-Y0383FUL
RBM-Y0613FUL
RBM-Y0963FUL
Branching section
Outdoor unit
connection
piping kit
*1: Use the same size as the main pipe if it is larger than the main pipe.
*2: Use a suction gas pipe and a liquid pipe for the two pipes branching downstream from the flow selector unit and the dedicated cooling circuit.
*3: Select the branch pipe of the first branch according to the outdoor capacity code.
*4: Select according to the outdoor unit capacity code if the total of the indoor capacity codes exceeds the outdoor unit capacity code.
*5: Up to a total of 54 (kBtu/h) maximum capacity code is connectable to one line after branching header.
When using a branching header for the 1st branch and the total capacity codes of all outdoor units are 120 type or more, use a
RBM-HY2043FUL or RBM-HY2083FUL regardless of the total capacity codes of indoor units at downstream side.
*6: The downstream starting point is the main pipe.
*7: Only group operation with one remote control (or two remote controls) is possible if one flow selector unit is connected to multiple indoor units.
Multiple outdoor units
(9) Model name
RBM-BT14FUL
Flow Selector
unit (*7)
Total capacity codes of indoor units (kBtu/h) Model name
(10)
Max. number of
connectable indoor units

05 Refrigerant Piping (Continued)
FS unit (Flow Selector unit)
Specifications
Model Name RBM-Y0383FUL RBM-Y0613FUL RBM-Y0963FUL
Power supply 230 V (208/230 V) 1phase 60 Hz
Connectable indoor unit capacity (kBtu/h) Below 38 38 to below 61 61 to 96 or less
Connectable indoor units 588
Height (in) 7.49 7.49 7.88
Width (in)Dimension 9.77 9.77 15.8
Depth (in) 6.3 6.3 7.88
Total Weight (lbs) 11 13 20
Liquid side (in)Connecting port dia.
(Indoor unit side)
3/8" 3/8" 1/2"
Gas side (in) 5/8" 5/8" 7/8"
Liquid side (in)
Connecting port dia.
(Outdoor unit side)
3/8" 3/8" 1/2"
Discharge gas side (in) 1/2" 1/2" 1/4"
Gas side (in) 5/8" 5/8" 7/8"
Connection Blaze connection
RBM-Y0383FUL, RBM-Y0613FUL
RBM-Y0963FUL
Ground Screw Attached wire (Power supply)
RBM-Y0613FUL Only
Attached wire (Control wiring)
Control P.C Board
1
13
131
W iring Diagram
MCC-1431
3
3
1
1
2
2
4
4
5
5
753
53 7
9
9
4321 5
21 3 45
R(L) S(N)
3
1
3
1
Power supply
single phase
208/230 V, 60 Hz
Indoor unit
ground screw
Outdoor unit side Indoor unit side
Indoor unit
CN81
(BLK)
SVSS
SVD
WHI
COM SVS
SVS SVS
SVSSSVDD
SVDD
CN67
(BLK)
SVD
ORN
BLU YEL BRW
Control P.C Board
for indoor unit
CN01
(RED)
CN02(GRN)
CN10(WHI)
Ground Screw Attached wire (Power supply)
Attached wire (Control wiring)
1
13
131
W iring Diagram
3
3
1
1
2
2
4
4
5
5
753
53 7
9
9
4321 5
21 3 45
3
1
3
1
SVSS
SVD
WHI
COM SVS
SVS SVS
SVSSSVDD
SVDD
SVD
ORN BLU YEL BRW
SVD
SVS
Power supply
single phase
208/230 V, 60 Hz
Indoor unit
ground screw
Outdoor unit side Indoor unit side
Indoor unit
Control P.C Board
for indoor unit
Control P.C Board
MCC-1431
CN01
(RED)
CN02(GRN)
CN10(WHI)
R(L) S(N)
CN81
(BLK)
CN67
(BLK)
Refrigerant pipe connecting port (Liquid)
6.06" (154)
9.77" (248)
Refrigerant pipe connecting port (Gas)
12.6" (320) (Hanging bolt pitch)
Refrigerant pipe connecting port (Discharge gas)
Refrigerant pipe connecting port (Liquid)
Refrigerant pipe connecting port (Suction gas)
(4.73" (120))
(4.73" (120))
(4.73" (120))
1.54" (39) 2.24" (57)
7.49" (190)
3.43" (87)
1.73" (44)
0.83" (21)
1.34" (34)
2.95" (75)
2.13" (54)
5.39" (137)
0.83" (21)
Ø0.87" (22.2)
Knockout hole for power wiring
Ø0.79" (20)
Hole for control wiring
3.11" (79)
1.22" (31)
6.3" (160)
Refrigerant pipe connecting port (Liquid)
6.26" (159)
15.8" (400)
Refrigerant pipe connecting port (Gas)
18.5" (470)
Refrigerant pipe connecting port
(Discharge gas)
Refrigerant pipe connecting port (Liquid)
Refrigerant pipe connecting port
(Suction gas)
(4.73" (120)) (4.73" (120))
1.93" (49)
2.68" (68)
7.88" (200)
3.7" (94)
2.20" (56)
1.10" (28)
1.34" (34)
6.93" (176)
3.70" (94)
0.91" (23)
Ø0.87" (22.2)
Knockout hole for power wiring
Ø0.79" (20)
Hole for control wiring
4.29" (109)
3.03" (77)
7.88" (200)
2.64" (67)
External view
(Unit: in (mm))

Adding refrigerant 06
After finishing vacuuming, exchange the vacuum pump with a refrigerant canister and start additional charging of
refrigerant.
Calculation of additional refrigerant charge amount
Refrigerant charge amount at shipment from the factory 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
If the additional refrigerant amount indicates minus as the result of calculation, use the air conditioner without
additional refrigerant.
After finishing vacuuming, exchange the vacuum pump with a refrigerant canister and start additional charging of
refrigerant.
Calculation of additional refrigerant charge amount
Additional charge amount (lbs) = { (Lx × 0.017 lbs/ft)+(Ly × 0.037 lbs/ft)+(Lz × 0.071 lbs/ft) } × 1.3+ 27.5 (lbs)
= { ((a2+d2) × 0.017 lbs)+((L3+a1+b1+c1+d1+b2+c2) × 0.037 lbs)+(L1+L2) × 0.071 lbs } × 1.3+27.5 (lbs)
= { (30 × 0.017 lbs)+(150 × 0.037 lbs)+(135 × 0.071 lbs) } × 1.3+27.5 (lbs)
= 47.84 lbs
Lx : Actual total length of liquid pipe Ø1/4” (ft)
Ly : Actual total length of liquid pipe Ø3/8” (ft)
Lz : Actual total length of liquid pipe Ø1/2” (ft)
Selection of installation place
• The cooling performance may decline considerably when total operating capacity of cooling indoor units is less
than 38 kBtu/h while ambient temperature is below 32°F (0°C).
L2 L3
a2 b2 c2 d2
L1
d1
a1 b2 c1 FS unit
Additional refrigerant charge
amount
Liquid pipe outer dia.
Additional refrigerant amount/1ft (lbs)
Ø1/4”
0.017
Outdoor unit capacity type
072 type
096 type
120 type
144 type
168 type
192 type
216 type
240 type
L1 Ø1/2": 90ft L2 Ø1/2": 45ft L3 Ø3/8":30ft
5.5
20.9
27.5
5.5
23.1
30.8
34.1
37.4
072 type
096 type
120 type
072 type
096 type
096 type
120 type
120 type
—
—
—
072 type
072 type
096 type
096 type
120 type
Adjustment amount of refrigerant
(lbs) Combined outdoor units
Ø3/8”
0.037
Ø1/2”
0.071
Ø5/8”
0.108
Ø3/4”
0.168
Actual length of liquid
pipe
(lbs) =××1.3 +
Additional refrigerant charge
amount per liquid pipe 1ft
[Table 3]
Adjustment amount of
refrigerant
[Table 4]
Table 1
Table 2
Example:
(120 type)
a1 Ø1/4": 30ft b1 Ø3/8": 30ft c1 Ø1/4": 15ft d1 Ø1/4": 15ft
a2 Ø1/4": 15ft b2 Ø3/8": 15ft c2 Ø1/4": 15ft d2 Ø1/4": 15ft

07
SV
Fan
Fan motor
FM
(TO)
Right side
Main
heat exchanger
Main
heat exchanger
Right side sub heat exchanger
Left side sub heat exchanger
Left side
PMV 4
(TE 1)
PMV 2
PMV 1
(TE 2)
SV
(SV 11)
(SV 5)
(TL)
(SV 6) Check joint(High pressure)
High pressure sensor
(SV 2)
Accumulator
(SV 3D)
Oil separator
Liquid tank
Fusible
plug
FP
FP
(SV 14)
(TK 1)
(SV 3E) (TK 5)
Oil header
(SV 3A)
Solenoid
valve
Capillary
tube
Check
valve Check
joint
Tempe.
sensor Distributor
Strainer
Balance
pipe
service
valve
Suction
gas side
service
valve
Dischage
gas side
service
valve
Liquid
side
service
valve
Check joint
(Liquid pipe)
(SV 3B)
(TK 2)
(SV 41)
(TD 1)
(SV 3C)
(TK 4)
Comp.
1
Comp.
2
High
pressure
SW
High
pressure
SW
(SV 42)
(TD 2)
(Inverter)
(Inverter)
(TS 2)
(TS 1) Low
pressure
sensor
Check
joint
(Low
pressure)
4-way
valve
Symbol
SV
SV
SV
SV
SV
SV
SV
SV
SV
SV
SV
Refrigerant Piping Systematic Drawing
Model: MMY-MAP0724FT∗UL

08
Model: MMY-MAP0964FT∗UL, MMY-MAP1204FT∗UL
Fan
Fan motor
FM
(TO)
Right side
Main
heat exchanger
Main
heat exchanger
Right side sub heat exchanger
Left side sub heat exchanger
Left side
PMV 4
(TE 1)
PMV 2
PMV 1
(TE 2)
SV
SV
SV
SV
SV
SV SV
SV
SV
SV
SV
SV
SV
SV
SV
SV
(SV 11)
(SV 6)
(SV 5)
(TL)
FP
High pressure sensor
Check joint
( High pressure)
(SV 2)
Accumulator
(SV 3D)
Oil separator
Liquid
tank
Fusible
plug
(SV 14)
(TK 1) (TK 2) (TK 3)
(SV 3E) (TK 5)
Oil header
(SV 3A)
Solenoid
valve Capillary
tube Check valve Check
joint Tempe.
sensor Distributor
Strainer
Balance
pipe
service
valve
Suction
gas side
service
valve
Dischage
gas side
service
valve
Liquid
side
service
valve
(Liquid pipe)
(SV 3B)
(SV 3F)
(SV 41)
(TD 1)
(SV 3C)
(TK 4)
Comp.
1Comp.
2
High
pressure
SW
High
pressure
SW
High
pressure
SW
(SV 42)
(SV 43)
(TD 2) (TD 3)
(Inverter)
Comp.
3
(Inverter)
(Inverter)
(TS 2)
(TS 1) Low
pressure
sensor
Check
joint
(Low
pressure)
4-way
valve
Symbol
Check joint
SV
FP

Explanation of Functional Parts
09
Functional part name Functional outline
Solenoid valve
SV3A (Connector CN321: White)
1) Supplies oil reserved in the oil header during ON time.
SV3B (Connector CN321: White)
1) Returns oil supplied in the balance pipe to the compressor.
SV3C (Connector CN321: White)
1) Pressurizes oil reserved in the oil header during ON time.
SV3E (Connector CN322: White)
1) Turns on during operation and balances oil between compressors.
TS1 (Connector CN505: White)
1) Controls PMV1, 2 super heat in single heating / collective heating
TS2
(Connector CN506: Black)
1) Controls indoor oil recovery at single cooling, collective cooling operation
2) Detects overheat of the cycle
TE2 (Connector CN521: Red)
1) Controls flow volume of the auxiliary heat exchanger at collective operation
(Compressor 1 Connector CN331: White, Compressor 2 Connector CN332: Blue, Compressor 3 Connector CN333: Black)
1) Prevents liquid accumulation to compressor
Compressor
case heater
(Connector CN334: Red)
1) Prevents liquid accumulation to accumulator
1) Oil balancing in each outdoor unitBalance pipe
Accumulator
case heater
TL (Connector CN523: White)
1) Detects under cool at single operation / collective cooling operation
TO (Connector CN507: Yellow)
1) Detects outside temperature
Oil separator
Temp. Sensor
Pressure sensor
Heater
1) Prevention for rapid decreasing of oil (Decreases oil flowing to the cycle)
2) Reserve function of surplus oil
SV5
(Connector CN314: White)
1) Gas balance function at defrost operation when the number of heating indoor units increased/decreased
2) Gas recovery function in the discharge gas pipes when the single cooling operation
SV6
(Connector CN315: White)
1) Liquid bypass function for discharge temperature release (cooling bypass function)
2) Refrigerant recovery function from the stopped follower unit
SV3F (Connector CN323: White)
1) Controls oil level balances between compressors.
SV11 (Connector CN319: White)
To block discharge gas pipe (At single cooling or defrost operation)
SV14 (Connector CN336: Yellow)
1) To block the liquid line
SV2
(Connector CN311: White) Hot gas bypass
1) Low pressure release function
2) High pressure release function
3) Gas balance function during stop time
High pressure
sensor
(Connector CN501: Red)
1) Detects high pressure and controls compressor capacity
2) Detects high pressure at single operation / collective cooling operation, and controls the fan in low ambient cooling operation
3) Detects under cool in indoor unit at single operation / collective heating operation
4) Controls rps of outdoor fan at collective cooling operation
SV41
SV42
SV43
(SV41 Connector CN312: Blue, SV42 Connector CN312: Blue, SV43 Connector CN313: Red)
Start compensation valve of compressor
1) For gas balance start
2) High pressure release function
3) Low pressure release function
PMV1, 2
(Connector CN300, 301: White)
1) Super heat control function at single heating, collective heating operation
2) Under cool control function in single cooling operation
SV3D
(Connector CN322: White)
1) Reserves oil in the oil separator during OFF time.
2) Returns oil reserved in the oil separator to the compressor during ON time.
PMV4
(Connector CN303: Red)
1) Controls flow volume of the auxiliary heat exchanger at collective operation
2) Preventive function for high-pressure rising in single heating operation
TE1
(Connector CN520: Green)
1) Controls defrost in single / collective heating operation
2) Controls outdoor fan in single / collective heating operation
(TD1 Connector CN502: White, TD2 Connector CN503: Pink, TD3 Connector CN504: Blue)
1) Protection of compressor discharge temp.
TD1,TD2,TD3
(TK1 Connector CN531: Black, TK2 Connector CN532: Green, TK3 Connector CN533: Red, TK4 Connector CN534: Yellow,
TK5 Connector CN535: Red)
1) Judges oil level of the compressor
TK1, TK2
TK3, TK4
TK5
(Connector CN500: White)
1) Detects low pressure at single / collective cooling operation and controls compressor capacity
2) Detects low pressure at single / collective heating operation, and controls the super heat
Low pressure
sensor
4-way valve
Pulse motor
valve
(Connector CN317:Blue)
1) Cooling/heating exchange
2) Reverse defrost
3) Exchange of main heat exchanger with auxiliary heat exchanger
Refrigerant Piping Systematic Drawing
(Continued)

Fan motor
Wind
direction Wind
direction
Wind
direction
Wind
direction
Propeller fan Propeller fan
Front side Front side Rear side
Rear side
Fan motor
Main heat
exchanger
MMY-MAP0724FT∗MMY-MAP0964FT∗
MMY-MAP1204FT∗
RBM-Y0383FUL
RBM-Y0963FUL
RBM-Y0613FUL
SV
SV
(SVD)
(SVD)
(SVD)
(SVD)
(SVDD)
(SVDD)
(SVDD)
(SVS)
(SVS)
(SVSS)
(SVSS)
(SVSS)
SV
SV
SV
SV
SV
SV
SV
SV
SV
SV
SV
SV
(SVS)
SV
SV
Liquid
pipe Liquid
pipe
Discharge
gas pipe Discharge
gas pipe
Strainer Strainer
Strainer
Strainer
Strainer
Strainer
Strainer
Strainer
Strainer
Check valve Check valve
Check valve
Check
valve
Check
valve
Capillary Capillary
Capillary Capillary
Capillary
Capillary
Capillary
Capillary
Capillary
Suction
gas pipe Suction
gas pipe
Liquid
pipe Discharge
gas pipe Suction
gas pipe
To indoor
liquid side
To indoor
liquid side
To indoor
gas side
To indoor
gas side
To indoor
liquid side
To indoor
gas side
Main heat
exchanger
Functional parts name
Solenoid valve SVD
SVS
SVDD
SVSS
Function outline
(Discharge gas block valve)
1) High-pressure gas circuit at heating operation
(Suction gas block valve)
1) Low-pressure gas circuit at cooling operation
(Pressure valve)
1) To increase pressure when No. of indoor heating units are increased
(Regulator valve)
1) To recover refrigerant in the stopped cooling thermo-OFF indoor unit
2) To decrease pressure when No. of indoor heating units are decreased
Sub heat
exchanger
Sub heat
exchanger
10
Configuration of outdoor unit heat exchanger
Flow Selector Unit

11 System Refrigerant Piping Schematic Diagram
<Exchange of operation mode>
For exchange between each operation mode, follow the table below: When “Momentary stop” is executed, the unit
does not operate for 3 minutes after stop of operation before update.
Before exchange
After exchange
Single heating
(ON)
Collective heating
(ON)
Collective cooling
(ON)
Single cooling
(OFF)
Momentary stop
(OFF ÆON)
Operation continuation
(OFF ÆON)
Operation continuation
(OFF ÆON)
Single cooling
(OFF)
Operation continuation
(ON as it is)
Operation continuation
(ON as it is)
Operation continuation
(ON ÆOFF)
Collective cooling
(ON)
Operation continuation
(ON as it is)
Operation continuation
(ON as it is)
Momentary stop
(ON ÆOFF)
Collective heating
(ON)
Operation continuation
(ON as it is)
Operation continuation
(ON as it is)
Momentary stop
(ON ÆOFF)
Single heating
(ON)
Control valve output outline of cooling/heating exchange unit (Operation standard)
SVD
(High-pressure circuit valve)
SVDD
(Pressure valve <For delay>)
SVS
(Low-pressure circuit valve)
SVSS
(Regulator valve <For delay>)
Indoor operation mode
OFF
<OFF>
1. Stop (Remote controller OFF)
<When all the system stop>
OFF
<OFF>
OFF
<OFF>
ON
<OFF>
OFF2. Cooling thermo OFF OFF OFF ON
OFF3. Cooling thermo ON OFF ON ON
OFF6. During detection of [E04] error ON OFF OFF
ON
4. Heating thermo OFF OFF OFF OFF
5. Heating thermo ON
Note) In the table, status of 4-way valve is indicated in parenthesis.
<Exchange unit valve ON-OFF list>

12Check Codes
Check
code
E06 Indoor unit initially communicating normally fails to
return signal (reduction in number of indoor units
connected).
Description of error Check
code Description of error
E07 Signal cannot be transmitted to indoor units
(→indoor units left without communication from
outdoor unit).
E12
• Indoor automatic address setting is started while
automatic address setting for equipment in other
refrigerant line is in progress.
• Outdoor automatic address setting is started while
automatic address setting for indoor units is in
progress.
E31
There is no communication between IPDUs (P.C.
boards) in inverter box.
Outdoor I/F board error
When power supply was turned on within 30 seconds
(before electric discharge of capacitor) after power
supply was reset
E26 Follower outdoor unit initially communicating normally
fails to do so (reduction in number of follower outdoor
units connected).
F24 Output voltage of high pressure sensor (Pd) is zero or
provides abnormal readings when compressors have
been turned off.
H16 No temperature change is detected by temperature
sensor for oil level detection (TK1-5) despite
compressor having been started.
L04 Identical refrigerant line address has been assigned
to outdoor units belonging to different refrigerant
piping systems.
P05 Open phase is detected when power is turned on.
Inverter DC voltage is too high (overvoltage) or too
low (undervoltage).
P15 Outdoor suction temperature sensor (TS1) detects
sustained and repeated high temperatures that
exceed standard value.
E08 More than one indoor unit is assigned same
address (also detected at indoor unit end).
H06 Low pressure (Ps) sensor detects abnormally low
operating pressure.
E19 There is no or more than one outdoor header unit in
one refrigerant line.
E20 Indoor unit from other refrigerant line is detected while
indoor automatic address setting is in progress.
E28 Outdoor header unit detects fault relating to follower
outdoor unit (detail displayed on follower outdoor unit).
F04 Outdoor discharge temperature sensor (TD1) has
been open/short-circuited.
F05 Outdoor discharge temperature sensor (TD2) has
been open/short-circuited.
F06 Outdoor heat exchanger temperature sensors
(TE1, TE2) have been open/short-circuited.
F07 Outdoor liquid temperature sensor (TL) has been
open/short-circuited.
F08 Outdoor outside air temperature sensor (TO) has
been open/short-circuited.
F12 Outdoor suction temperature sensor (TS1, TS2) has
been open/short-circuited.
F15 Wiring error in outdoor temperature sensors (TE1, TL)
has been detected.
F31 Outdoor EEPROM is faulty (alarm and shutdown for
header unit and continued operation for follower unit)
H05 Wiring/installation error or detachment of outdoor
discharge temperature sensor (TD1) has been detected.
F16 Wiring error in outdoor pressure sensors (Pd, Ps)
has been detected.
F22 Outdoor discharge temperature sensor (TD3) has
been open/short-circuited.
Signal cannot be transmitted to other outdoor units.E23
More than 3 outdoor units have been connected.L28
There is part failure in P.C. board (I/F).L31
There is duplication in outdoor addresses set manually.E25
Output voltage of low pressure sensor (Ps) is zero.F23
E16 Combined capacity of indoor units is too large
(more than 135% of combined capacity of outdoor units).
E15 Indoor unit fails to communicate while automatic
address setting for indoor units is in progress.
H07 Temperature sensor for oil level detection (TK1-5)
detects abnormally low oil level.
H08 Temperature sensor for oil level detection (TK1-5)
has been open/short-circuited.
H15 Wiring/installation error or detachment of outdoor
discharge temperature sensor (TD2) has been detected.
H25 Wiring/installation error or detachment of outdoor
discharge temperature sensor (TD3) has been detected.
L05 More than one indoor unit has been set up as priority
indoor unit.
L06 More than one indoor unit has been set up as
priority indoor unit.
L08 Address setting has not been performed for one or
more indoor units (also detected at indoor end).
L10 Outdoor unit capacity has not been set (after P.C.
board replacement).
L17 Old model outdoor unit (prior to 3 series) has been
connected.
L18 Cooling/heating cycle error resulting from piping error
is detected.
L29 There are insufficient number of IPDUs
(P.C. boards) in inverter box.
L30 Indoor unit has been shut down for external error
input in one refrigerant line (detected by indoor unit).
P03 Outdoor discharge temperature sensor (TD1) has
detected abnormally high temperature.
P07 Temperature sensor built into IGBT (TH) detects
overheating.
P10 Indoor unit has been shutdown in one refrigerant line
due to detection of overflow (detected by indoor unit).
P13 State of refrigerant cycle circuit indicates liquid
backflow operation.
P17 Outdoor discharge temperature sensor (TD2) detects
abnormally high temperature.
P18 Outdoor discharge temperature sensor (TD3) detects
abnormally high temperature.
P19 Abnormality in refrigerating cycle is detected
during heating operation.
P20 High pressure (Pd) sensor detects high pressure
that exceeds standard value.

13
(Errors detected by IPDU featuring in SMMS-i standard outdoor unit - typical examples)
Check
code Description of error Check code Description of error
F13 Temperature sensor built into indoor IGBT (TH)
has been open/short-circuited.
Compressor lockup is detectedH02
H01 Inverter current (Idc) detection circuit detects
overcurrent.
H03 Abnormal current is detected while inverter
compressor is turned off.
Outdoor fan IPDU detects error.P22
High-pressure SW is activated.P04
Compressor motor position detection error is detected.P29
P07 Temperature sensor built into IGBT (TH) detects
overheating.
P26 Short-circuit protection for compressor motor driver
circuit components is activated (momentary overcurrent).
Note) The above check codes are examples only, and different check codes may be displayed depending on the
outdoor unit configuration (e.g. a Super Modular multi system). For details, see the service manual for the
outdoor unit.
(Error detected by indoor unit)
Check Codes (Continued)
E01 Signals cannot be received from indoor unit; master remote controller has not been set
(including two remote controller control).
E09 Both remote controllers have been set as master remote controller in two remote controller control
(alarm and shutdown for header unit and continued operation for follower unit)
Check
code Description of error
Signals cannot be transmitted to indoor unit.E02
Check
code Description of error Check code Description of error
C05 Central control device is unable to transmit signal due
to duplication of central control device.
Central control device is unable to receive signal.
—Multiple network adapters are connected to
remote controller communication line.
C12 Device connected to general-purpose device control
interface for TCC-LINK is faulty.
P30
C06 Group follower unit is faulty (unit No. and above detail
[
∗∗∗
] displayed on main remote controller)
(Error detected by main remote controller)
(Error detected by central control device)
Note) The same error, e.g. a communication error, may result in the display of different check codes depending
on the device that detects it.
Moreover, check codes detected by the main remote controller/central control device do not necessarily
have a direct impact on air conditioner operation.
Check
code Description of error Check code Description of error
E03
Communication from remote controller or network
adaptor has been lost (so has central control
communication).
Signals are not being received from outdoor unit.E04
Indoor unit detects address identical to its own.E08
E10 MCU communication between main controller and
motor microcontroller is faulty.
E18 Periodic communication between indoor header and
follower units cannot be maintained.
F01 Heat exchanger temperature sensor (TCJ) has been
open/short-circuited.
F02 Heat exchanger temperature sensor (TC2) has been
open/short-circuited.
F03 Heat exchanger temperature sensor (TC1) has been
open/short-circuited.
F10 Ambient temperature sensor (TA) has been open/
short-circuited.
F11 Discharge temperature sensor (TF) has been open/
short-circuited.
F29 Indoor EEPROM is abnormal (some other error may
be detected).
L02 In case that outdoor unit model is different
(Not corresponded)
There is more than one header unit in group.L03
There is duplication in central control address setting.L20
Float switch has been activated.P10
L07 There is at least one stand-alone indoor unit to which
group control cable is connected.
L08 Address setting has not been performed for one or
more indoor units (also detected at outdoor unit end).
L09 Capacity setting has not been performed for indoor
unit.
L30 Unit shutdown has been caused by external error
input (CN80).
F17 Open/Short of outside air suction temperature sensor
(TOA) was detected.
F18 Open/Short of indoor air suction temperature sensor
(TRA) was detected.
P01 Indoor AC fan error is detected (activation of fan
motor thermal relay).
P12 Indoor DC fan error (e.g. overcurrent or lock-up) is
detected.
P31 Follower unit cannot be operated due to header unit
alarm (E03/L03/L07/L08).

Address Setup 14
Check at Main Power-on
After turning on the main power of the indoor units and outdoor unit in the refrigerant line to conduct a test opera-
tion, check the following items in each outdoor and indoor unit.
(After turning on the main power, be sure to check in order: indoor unit →outdoor unit.)
<Check on the outdoor unit>
(1) Check that all the rotary switches, SW01, SW02, and SW03, on the interface PC board of the header unit are
set to “1.”
(2) If another check code is displayed on the 7-segment display [B], remove the cause of the problem referring to
Section, “9 TROUBLESHOOTING” in SERVICE MANUAL (File No. A13-002).
(3) Check that “L08” is displayed on the 7-segment display [B] on the interface PC board of the header unit.
(L08: Indoor address not set up)
(If the address setup operation has already been completed during servicing, etc., the above check code is not
displayed, and “U1” is displayed on the 7-segment display [A].)
Interface PC board
SW01 SW02 SW03
SW04
D600 D601 D602 D603 D604
SW15SW05
Push switches
Rotary switches
7-segment display
[A]
7-segment display
[B]
<Check on the indoor unit>
(1) Display check on the remote controller (in the case of a wired remote controller)
Check that a frame, as shown in the following figure at left, is displayed on the LC display section of the remote
controller.
SET
TIME
TIMER SET
TEST
FILTER
RESET
TEMP.
CL
FAN
SAVE
SWING/FIX
VENT
MODE
ON / OFF
UNIT LOUVER
Normal status
(power supplied and operation stopped)
Correct
SET
TIME
TIMER SET
TEST
FILTER
RESET
TEMP.
CL
FAN
SAVE
SWING/FIX
VENT
MODE
ON / OFF
UNIT LOUVER
When power is not supplied normally
Incorrect
If no frame is displayed, as shown in the above figure at right, the remote controller does not have a normal
supply of power; check the following items.
• Check the power supply of the indoor unit.
• Check the cabling between the indoor unit and the remote controller.
• Check whether there is a cutoff of wire around the indoor control PC board or not, and check for connection
failures of the connectors.
• Check for failure of the transformer for the indoor electrical control box.
• Check for failure of the indoor control PC board.

15
Address Setup
This product requires address setup before operation.
Follow this procedure for address setup.
Precautions
(1) Address setup is not performed simply by turning on the power supply.
(2) For indoor units, address setup can be done either by “manual address setup” or “by automatic address setup”
Automatic address setup: Setup from SW15 on the interface PC board of the header unit
Manual address setup: Setup from the wired remote controller. (For details, refer to “Address Setup Procedure.”)
(3) Automatic setup usually takes about 5 minutes per line. In some cases, however, it may take up to 10 minutes.
(4) It is unnecessary to operate the air conditioner to achieve address setup.
Address Setup and Check Procedure
Procedure
1 Indoor unit power-on Turn on the power of the indoor unit for the refrigerant line for which the address is to be set up.
2 Outdoor unit power-on Turn on the power of all the outdoor units for the refrigerant line for which the address is to be set up.
37-segment display
check
Check that “L08” is displayed on the 7-segment display [B] on the interface PC board of the
header unit in the system where the address is to be set up.
4
Address setup start Confirm the items in “Address Setup Procedure,” and then set up the address according to the
operation procedure.
(Be careful to note that the setup operation may differ in group control and central control systems.)
Note:
The address cannot be set up if switches are not operated.
Item Operation and check contents
5
Display check after
setup
• After address setup, “U1” “ ” is displayed on the 7-segment display.
• For follower outdoor units, “U2” to “U3” are displayed on the 7-segment display [A].
• If an error code is displayed on the 7-segment display [B], remove the cause of the problem
referring to “9 TROUBLESHOOTING” in SERVICE MANUAL (File No.A13-002).
6
System information
check after setup
Using the 7-segment display function, check the system information of the scheduled system.
(This check is executed on the interface PC board of the header unit.)
System capacity [Number of
horsepower] [Ton]123
SW01 SW02 SW03 [A] [B]
Rotary switch setup 7-segment display
Number of connected
outdoor units
[Number of units] [ P]133
Number of connected
indoor units
[Number of
connected units]
143
After the above checks, return rotary switches SW01, SW02, and SW03 to 1/1/1.
Interface PC board
SW01 SW02 SW03
SW04
D600 D601 D602 D603 D604
SW15SW05
Push switches
Rotary switches
7-segment display
[A]
7-segment display
[B]
Outdoor unit
capacity type
072 type
096 type
120 type
144 type
168 type
192 type
216 type
240 type
Nominal Tons
6
8
10
12
14
16
18
20
*1 System capacity
Address Setup (Continued)

16
Address Setup Procedure
No central control: go to Address setting procedure 1
Central control of 2 or more refrigerant lines: go to Address setting procedure 2
(Example) When controlling a single refrigerant line
centrally
When controlling 2 or more refrigerant lines
centrally
Address setting
procedure To procedure 1 To procedure 2
System wiring
diagram
Outdoor
Indoor Indoor Indoor Indoor
Outdoor
Central
remote
controller
Central
remote
controller
Remote
controller
Remote
controller Remote
controller
Outdoor
Indoor Indoor Indoor Indoor
Outdoor Central
remote
controller
Remote
controller
Remote
controller Remote
controller
Address setting procedure 1
1Turn on indoor units first, and then turn on outdoor units.
2About one minute after turning the power on, confirm that the 7-segment display on the interface P.C.
board of the header outdoor unit indicates U. 1. L08 (U. 1. flash) .
3Push 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.)
4The 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) emain lit on the display, the setting is complete.
Interface P.C. board on the header outdoor unit
5When using a central control, connect a relay connector between [U1, U2] and [U3, U4] terminals.
SW04 SW05 SW15
SW01 SW02 SW03
D600 D601 D602 D603 D604
3
5
2,4
U1 U2 U3 U4 U5 U6
TO
Relay
connector
INDOOR
UNIT
TO
CENTRAL
CONTROL
LER
TO
OUTDOOR
UNIT
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.

Address setting procedure 2
1Set a system address for each system using SW 13 and 14 on the interface P.C. board on the header
outdoor unit of each system.
(Factory default: Address 1)
NOTE
17
(Example) Controlling 2 or more refrigerant lines as a group
System wiring
diagram
Outdoor
Indoor Indoor Indoor Indoor
Outdoor
Remote
controller
(Group control)
Be sure to set a unique address on each system. Do not use a same address as another system (refrigerant
line) or DI/SDI series.
Interface P.C. board on the header outdoor unit
SW06 SW07 SW09 SW10
SW11 SW12 SW13 SW14
1234 1234 1234 1234
1234 1234 1234 1234
Line address switches on the outdoor interface PC board ( O : switch on, × : switch off)
SW13 SW14
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
O
×
O
×
O
×
O
×
O
×
O
×
O
×
×
O
O
×
×
O
O
×
×
O
O
×
×
×
×
×
×
O
O
O
O
×
×
×
×
O
O
×
×
×
×
×
×
×
×
O
O
O
O
O
O
2341234
SW13 SW14
1
15
16
17
18
19
20
21
22
23
24
25
26
27
28
×
×
O
O
O
O
O
O
O
O
O
O
O
O
×
O
×
O
×
O
×
O
×
O
×
O
×
O
O
O
×
×
O
O
×
×
O
O
×
×
O
O
O
O
×
×
×
×
O
O
O
O
×
×
×
×
O
O
×
×
×
×
×
×
×
×
O
O
O
O
2341234
Not used for setup of line address (do not change setup.)
Line
address
Line
address
Address Setup (Continued)

18
U1 U2 U3 U4 U5 U6
2
TO
INDOOR
UNIT
TO
CENTRAL
CONTROL
LER
TO
OUTDOOR
UNIT
2Be sure to disconnect the relay connectors between the [U1U2] and [U3U4] terminals on all the header
outdoor units that will be connected to the central control. (Factory default: disconnected)
3Turn on indoor units first, and then turn on outdoor units.
4About 1 minute after turning the power on, confirm that the 7-segment display on the interface P.C.
board of the header outdoor unit indicates U. 1. L08 (U. 1. flash) .
5Push 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.)
6The 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.
7Repeat steps 4to 6for other refrigerant lines.
Be sure to implement a test operation prior to the actual operation in each system.

19
10 Set the central control address.
(For the setting of the central control address, refer to the installation manuals of the central control devices or
“Manual address setup from the remote controller” in the next to the following page and after.
SW15
SW04
12
SW13
SW30
SW14 SW01 SW02 SW03
D600 D601 D602 D603 D604
SW05
7-segment
display
Header unit interface P.C. board
SW30
* Header units are connected to the same
central control, except the header unit
with the smallest line address number.
8
12
SW30
SW30
* Header unit with the least number of the
line address.
4, 6
5
Address Setup (Continued)
U1 U2 U3 U4 U5 U6
9
TO
INDOOR
UNIT
TO
CENTRAL
CONTROL
LER
TO
OUTDOOR
UNIT
8After completing address setting of all systems, turn off dip switch 2 of SW30 on the interface P.C.
boards of all the header 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)
9Connect the relay connectors between the [U1, U2] and [U3, U4] terminals of the header outdoor unit of
each refrigerant line.