15
4
Connection diagram
1. The dotted line represents a wire procured locally, and the dashed line represents an option sold separately.
2.
represents a terminal block,
represents a connection terminal, and
represents a connector on
the printed circuit board.
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 ventilation fan speed (Low/High)
Between 1 and 4: Selecting the ventilation mode (Bypass mode/Heat exchange mode)
Between 1 and 5: Operation (ON/OFF)
Use a microcurrent contact (DC12V, 1mA). In addition, ON/OFF operation is possible when using a voltage of
DC12V or 24V.
6. Blue wire (High) is connected as factory default. To switch to “Extra High”, connect black wire’s connector
instead of blue.
7. When the temperature of the outdoor air is below -10°C, the unit runs in the cold mode (the ventilator for air
supply runs intermittently). The unit cannot run when the temperature of the outdoor air is below -15°C. The
ventilator for air supply stops running and the ventilator for air exhaust also stops depending on the settings.
8. Even if “Bypass mode” is selected manually, the unit switches to “Heat exchange mode” automatically to prevent
condensation when the temperature of the outdoor air is below 15°C. However, “Bypass mode” is still displayed.
TRA
SW301
CN105
1
SW701
R
Y701
R
Y704
S(N)
R(L)
TB1
CN67
1
3
ON
OFF
1
SW702
OFF
DC 5V
DC20V
DC12V
ON
U4
TB2 U3
B
A
2
OFF
CN040
1
4
3
2
2 3 4
1
2
1
3 CN041
OFF
ON
SW703
ON
CN106
1
2
t°
TOA
t°
1
7
43F22
3
43F12
5
2
3
43F11
5
1
3
5
5
43F21
1
3
2
C
C
P01
CN701
8
43F12
FM1
M
1~
M
1~
M
FM2
7
7
7
CN704
R
Y705
R
Y702
3
5
1
3
CN760
5
2
1
3 4
R
Y709
R
Y708
R
Y710
6
5
1
3
9
7
5
6
CN702
43F21
8
8
8
43F11
43F22
DAM
3
1
2
4
5 TB3
4
CN705
2
1
3
CN706
1
5
2
1
5
2
2
B
A
+
-
Power supply for the Air
to Air Heat Exchanger
220-240V~, 50Hz
220V~, 60Hz
Earth
Air to Air Heat
Exchanger
represents the connector to switch between
Extra High and High.
Wiring for central control
Wiring for the remote
controller
Wired remote
controller (sold
separately)
Indoor control
circuit board
MCC1615
Connector
(White)
White
Connector
(Black)
White
Or
an
ge
External output
(220-240V~, under 1A each)
*5 External input (sold
separately)
No voltage a-contact input
Voltage DC (12V, 24V) input
Operation output
White
Wh
ite
Wh
ite
Re
d
Re
d
White
Red
Bl
ue
Black
Connector
(White *6)
White
Yellow
Yellow
Black
Br
ow
n
Bl
ue
Bla
ck
Connector
(Red *6)
Wh
ite
Re
d
(White)
Gray
Light blue
Gra
y
Yell
ow
Blue
Lig
ht bl
ue
Pink
Brown
Wh
ite
Yell
ow
Bl
ue
Bl
ac
k
Re
d
(White)
(Red)
1 Common
2 Remote controller operation
3 Ventilation fan speed
4 Ventilation mode
5 Operation
(Black)
Power
supply
(Blue)
(Blue)
(Brown)
(White)
Black
Blue Blue
Black
F01
T3.15A
250V~
Common
External damper output
Abnormal/Bypass mode output
Code
Part name
CN***
Connector
F01
Fuse
FM1
Air supplying motor
FM2
Air exhausting motor
DAM
Damper motor
TRA
TRA sensor
Code
Part name
TOA
TOA sensor
RY701, RY702 Relay for air supplying motor
RY704, RY705 Relay for air exhausting motor
TB1
Terminal block (power supply)
TB2
Terminal block (communication)
TB3
Terminal block (external output)
Code
Part name
SW301, SW701
SW702, SW703 DIP switch
43F11, 43F12
Relay for air supplying motor
43F21, 43F22
Relay for air exhausting motor
Summary of Contents for VN-M1000HE
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