Specifications
WR2-SERIES SYSTEM DESIGN (June 2010)
WR2SD-9
WR2-SERIES
SYSTEM DESIGN
1. ELECTRICAL WORK
The local standards and/or regulations is applicable at a higher priority.
1-4-2. PQRY-P144, 168, 192, 216, 240TSHMU/YSHMU
Power supply
Power supply
3-phase 4-wire
Note10,13
Note4
Note3
Note3
To *1 or *2
*1
Connector
CN41 CN40
Power supply
1-phase
208-230V 60Hz
Note10
Central control
transmission cable
>=1.25mm
2
Shield cable
(CVVS, CPEVS
MVVS)
Indoor-heat source
transmission cable
>=1.25mm
2
Shield cable
(Using MA remote controller)
Connecting TB5 terminal.
G
G
TB7
(S)
TB7
(S)
TB1
(L1,L2,L3)
TB3
(M1,M2)
TB7
(M1,M2)
TB3
(M1,M2)
TB7
(M1,M2)
SC
Note12
HU
Note4
To other HU
* Power supply
specifications vary with the
model of connected indoor
units or BC controller
<In the case a system controller is connected.>
TB1
(L1,L2,L3)
Note:
1 The transmission cable is not-polarity double-wire.
2 Symbol means a screw terminal for wiring.
3 The shield wire of transmission cable should be connected to the grounding terminal at
Heat source unit. All shield wire of M-Net transmission cable among Indoor units should be
connected to the S terminal at Indoor unit or all shield wire should be connected
together.
The broken line at the scheme means shield wire.
4 When the Heat source unit connected with system controller, power-supply to TB7 of the
heat source unit(s) is needed. The connector change from CN41 to CN40 at one of the
heat source units will enable the heat source unit to supply power to TB7, or an extra power
supplying unit PAC-SC51KUA should be used. The transmission cable (above 1.25mm
2
,
shielded, CVVS/CPEVS/MVVS) among Heat source units and system controllers is called
central control transmission cable. The shield wire of the central control transmission
cable must be grounded at the Heat source unit whose CN41 is changed to CN40.
5 MA R/C transmission cable (0.3-1.25mm
2
) must be less than 200m in length, while ME
R/C transmission cable (0.3-1.25mm
2
) must be less than 10m in length. But transmission
cable to the ME R/C can be extend using a M-NET cable (>=1.25mm
2
) when the length
is counted in the M-Net length. Both Compact MA and ME R/C transmission cables size
0.75~1.25mm
2
in thickness.
6 MA remote controller and ME remote controller should not be grouped together.
7 If using 1 or 2 (main/sub) MA remote controller to control more than 1 Indoor unit, use MA
transmission cable to connect all the TB15 terminals of the Indoor units. It is called
"Grouping".
If using 1 or 2 (main/sub) ME remote controller control more than 1 indoor unit, set
address to Indoor unit and ME remote controller. For the method, refer to 2-4. "Address
Setting".
8 Indoor board consumes power from TB3. The power balance should be considered
according to System Design 2-3 "System configuration restrictions".
9 If Transmission booster is needed, be sure to connect the shield wires to the both sides
to the booster.
10 The critical current for choosing power source equipment is approximate
1.4 times of total rated current of the Heat source unit(s) or Indoor unit(s).
11 Numbers shown with ( ) indicates a diameter of the compact remote controller.
12 When System controller (SC) is connected to the system, turn the SW2-1 on.
13. The phases of electricity power must be confirmed to be right used. Phase-reverse, or
phase-missing could break the controllers.
Note7
Power supply
1-phase
208-230V 60Hz
G
TB5
(M1,M2)
TB2
(L,N)
S
TB15
(1,2)
TB5
(M1,M2)
TB2
(L,N)
S
TB15
(1,2)
TB5
(M1,M2)
TB2
(L,N)
S
SS
E
TB15
(1,2)
TB5
(M1,M2)
TB2
(L,N)
TB1
(R,S)
TB2 TB3
S
TB15
(1,2)
Transmission
booster
Note8
Note9
MA R/C MA R/C MA R/C
MA R/C cable
0.3-1.25mm
2
(0.75~1.25mm
2
)
<=200m
Note5, Note11
IU
(Shield)
(Shield) (Shield)
(Shield)
(Shield) (Shield)
Note6
Note7
Pull box
Symbol
BKC
OCP
NFB
HU
IU
SC
MA R/C
ME R/C
Breaker capacity
Over-current protector
Non-fuse breaker
Heat source unit
Indoor unit
System controller
MA remote controller
ME remote controller
*2
Indoor-heat source
transmission cable
>=1.25mm
2
Shield cable
(Using ME remote controller)
Connecting TB5 terminal.
Power supply
1-phase
208-230V 60Hz
ME R/C ME R/
CM
E R/C
ME R/C cable
0.3~1.25mm
2
(0.75~1.25mm
2
)
<=10m
Note5, Note11
Note6
Note7
Note7
Power supply
1-phase
208-230V 60Hz
Note10
G
TB5
(M1,M2)
TB2
(L,N)
S
TB15
(1,2)
TB5
(M1,M2)
TB2
(L,N)
S
TB15
(1,2)
TB5
(M1,M2)
TB2
(L,N)
S
SS
E
TB15
(1,2)
TB5
(M1,M2)
TB2
(L,N)
TB1
(R,S)
TB2 TB3
S
TB15
(1,2)
Transmission
booster
Note8
Note9
IU
(Shield)
(Shield) (Shield)
(Shield)
(Shield) (Shield)
* Power supply
specifications vary with the
model of connected indoor
units or BC controller
Pull box
BC controller(Main)
TB02
(M1,M2)
S
(Shield)
BC controller(Sub)
TB02
(M1,M2)
S
BC controller(Main)
TB02
(M1,M2)
S
(Shield)
BC controller(Sub)
TB02
(M1,M2)
S
TB01
L,N
TB01
L,N
TB01
L,N
TB01
L,N
3-phase 3-wire
208-230V 60Hz(THMU)
460V 60Hz(YHMU)
208-230V 60Hz(THMU)
460V 60Hz(YHMU)
Note10,13
*1 The breakers for current leakage should support Inverter circuit. (e.g. Mitsubishi Electric's NV-C series or equivalent).
*2 Breakers for current leakage should combine using of switch.
*3 It shows data for B-type fuse of the breaker for current leakage.
Switch
Switch
(NFB)
<A>
OCP*3
<A>
BKC
<A>
Breakers for current leakage
*1, *2
Model
Minimum Wire thickness
G wirePower wire
<mm
2
/AWG> <mm
2
/AWG>
GG
GG
Breakers for
current leakage
Switch
Breakers for
current leakage
Switch
Breakers for
current leakage
Switch
Breakers for
current leakage
Switch
Breakers for
current leakage
Switch
Breakers for
current leakage
Switch
HU
PQRY-P72THMU 20 A 30 mA or 100 mA 0.1 sec. or less 20 20 20 3.3/12
5.3/10
PQRY-P96THMU 30 A 30 mA or 100 mA 0.1 sec. or less 30 30 30
PQRY-P120THMU 40 A 100 mA 0.1 sec. or less 40 40 40 8.4/8
PQRY-P72YHMU 15 A 30 mA or 100 mA 0.1 sec. or less 15 15 15 2.1/14
PQRY-P96YHMU 15 A 30 mA or 100 mA 0.1 sec. or less 15 15 15 2.1/14
PQRY-P120YHMU 20 A 30 mA or 100 mA 0.1 sec. or less 20 20 20 3.3/12
3.3/12
5.3/10
8.4/8
2.1/14
2.1/14
3.3/12