Toshiba MMD-VNK502HEX1E Installation Manual page 64

Item
Indoor / Outdoor inter-unit wiring (*2) (2
Model name
cables)
MMD-
Central control line wiring (*3) (2 cables)
VNK502HEX1E
VN502HEX1E
VNK802HEX1E
(Up to 1000 m)
VN802HEX1E
Air to Air Heat
2-core, non-polarity shield wire: 1.25 mm
Exchanger with
VNK1002HEX1E (Up to 2000 m)
DX Coil Unit
2-core, non-polarity shield wire: 2.00 mm
VN1002HEX1E
VNK1002HEX1E2
VN1002HEX1E2
(*2) (*3)
• 2-core with non-polarity wires are used for the Indoor / Outdoor inter-unit wiring and Central controller wiring.
• To prevent noise trouble, use 2-core shield wire.
• The length of the communication line means the total length of the inter-unit wire length between indoor and outdoor units added with the
central control system wire length.
(*4)
• 2-core with non-polarity wire is used for wiring of the remote controller wiring and group remote controllers wiring.
Remote controller wiring, remote controller inter-unit wiring
Total wire length of remote controller wiring and remote
controller inter-unit wiring = L + L1 + L2 + ··· Ln
Total wire length of remote controller inter-unit wiring = L1 + L2 + ··· Ln
Indoor unit
L
Remote controller
wiring
L1
Remote
Remote controller inter-unit wiring
controller
On the outside of the unit, do not allow the wire for the remote controller (communication wire) and the wire for
AC220-240 V to come into contact or put them together in one electrical conduit; otherwise, the control system may
have trouble due to noise.
125-EN
Communication line
Remote controller wiring (*4)
2
2-core, non-polarity: 0.5 to 2.0 mm
2
2-core, non-polarity: 0.5 mm
For wired type only Up to 500 mm
When wireless type is included Up to 400 mm
Up to 200 mm
Indoor unit Indoor unit Indoor unit
L2 Ln
(Up to 8 units)
– 63 –
 Connection diagram
FM1
Connector Connector
(White) (Black)
Yellow
C
Yellow
2
Connector
(White *6)
4 2 4 2 4
43F12 43F11 43F22
6 6 6
Yellow Yellow
Red
Air to Air Heat
F02
Exchanger with
T15A
DX Coil Unit
250 V~
R(L) S(N)
Earth Power supply for
2 to 2.0 mm 2 indoor unit
220-240 V~, 50 Hz
220 V~, 60 Hz
represents the connector to switch
between Extra High and High.
Code
CN*** Connector
F01 Fuse (Printed circuit board)
F02 Fuse (Motor)
FM1 Air supplying motor
FM2 Air exhausting motor
DAM Damper motor
TRA TRA sensor
TOA TOA sensor
TSA TSA sensor
1. The dotted line represents a wire procured locally, and the dashed line represents an option sold separately.
2. represents a terminal block,
printed circuit board and
3. represents a protective earth.
4. represents a printed circuit board.
5. Using a no voltage a-contact input of the external input (sold separately), the following operations are available:
Between 1 and 2: Selecting the remote controller operation (Invalid / Valid)
Between 1 and 3: Adjusting the fan speed (Low / High)
Between 1 and 5: Operation (ON/OFF)
Use a microcurrent contact (DC12 V, 1 mA). In addition, ON/OFF operation is possible when using a voltage of
DC12 V or 24 V.
6. Orange wire (High) is connected as factory default. To switch to "Extra High", connect black wire's connector
instead of orange.
7. The unit cannot run when the temperature of the outdoor air is below -15 °C.
External output
(220-240 V~, under 1A each)
Red Red
FM2
7 7 7 7
Operation output
43F12 43F11 43F22 43F21
Common
8 8 8 8
External damper output
Yellow
Abnormal / Bypass
C mode output
M 1 2 3 4 5 TB3
DAM
Yellow P01
6
Black
CN702 CN704
CN701
1 3 5 1 3 5 1 3 4 2 5 6 1 3 5 7 9
(Red)
(White)
CN760
Connector (White)
(Red *6)
2 4 2
43F21
6 F01
SW701
T3.15A
ON
DC20V
250 V~ OFF
Red Red
1 Power
DC15V
White
3 supply DC12V
DC 7V
CN67
(Black)
TB1
CN602
1 3
(Red)
MV1 Gray
Gray
Yellow
Purple Pink
Yellow
Blue
Blue
DMV1
1 2 TB5
Pink
(VNK type only)
Pink
Parts name Code Parts name
TFA TFA sensor
TCJ, TC1, TC2 Indoor coil sensor
TB1 Terminal block (power source)
TB2 Terminal block (communication)
TB3 Terminal block (external output)
*1
TB4 Terminal block (Humidistat)
*1
TB5 Terminal block (Magnetic valve)
FS1 Float switch
*1
MV1 Magnetic Valve
represents a connection terminal,
represents a short circuit connector.
*5 External input (sold separately)
No voltage a-contact input
1 Common
2 Remote controller operation
3 Fan speed
5 Operation
Voltage DC (12 V, 24 V) M PMV
1
input
2 6
5 2
1 2 3 4 5 1 2 1 2 4 3 5 6 1 2 3 4 5 1 2 4 5 6 3
CN705 CN706 CN61 CN81 CN82 (Blue)
(Yellow) (Black)
CN100 1
t° TC1
3
(Brown)
CN101
1
t° TC2
(Black) 2
Indoor control CN102
1
t° TCJ
(Red) 2
circuit board
CN103
MCC1615 1
t° TFA
(Green) 2
CN104
1
t° TSA
(Yellow) 2
CN105
1
t° TRA
(Blue) 2
CN106
1
t° TOA
(White) 2
CN601
634 CN34 CN040 CN041
1 3 1 3 1 3 1 2 1 3
(Blue) (Red) (Red) (Blue) (Blue)
TB2 U1 U2 A B
Wiring for
FS1
Wiring between indoor the remote
and outdoor unit controller
A B
Wired remote controller
TB4 (sold separately)
Code Parts name
*1
DMV1 Decompression magnetic valve
PMV Pluse modulating valve
SW701 DIP switch
43F11, 43F12 Relay for air supplying motor
43F21, 43F22 Relay for air exhausting motor
RY701, RY702 Relay for air supplying motor
RY704, RY705 Relay for exhausting motor
*
1: VNK type only
represents a connector on the
126-EN