Mitsubishi Electric LGH-F300RVX2-E Handbook page 10

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LGH-F940RVX2-E, LGH-F1200RVX2-E
* Wiring for TM1, TM2, TM3, TM4, and TB5 shown in dotted lines are field work.
* Be sure to connect the earth wire.
* An all pole electric leakage isolator must be installed.
* Always use an isolator for the main power connection.
Monitor output
PZ-62DR-EA
2nd remote controller
(Max. 2 controllers)
2nd Lossnay unit
(Max. 15 units)
M-NET transmission cable
Shielded Wire
12 V or 24 V DC
Mr. Slim (non-polar)
Volt-free contact
M1: Motor for exhaust fan
M2: Motor for supply fan
GM: Motor for Bypass damper
TH1: Thermistor for outdoor air
TH2: Thermistor for return air
SW2, 5: Switch (Function selection)
SW6: Switch (Model selection)
TM1: Terminal block (Power supply)
TM2: Terminal block (External control input)
TM3: Terminal block (Monitor output)
TM4: Terminal block (Remote controller transmission cable)
TB5: Terminal block (M-NET transmission cable)
TAB1, TAB2: Connector (Power supply)
X11: Relay contact
CN5: Connector (Thermistor RA)
Select proper isolator according to the electrical current information in the chart below.
Model
Maximum current when operating [A]
Inrush current after power
supply ON [A]
Control circuit board
CN105
TM3
9
X11
10
CN50
CN26
1
TM4
2
LED3
LED4
A
B
TB5
S
TM2
1
2
Y
Z
LED1
LED2
CN21
SW12 SW11
CN19
CN14
LED5
CN13
CN34
CN35 CN5
TH2
TH1
(RA)
(OA)
CN7: Connector (Thermistor OA)
CN9: Connector (Fan motor)
CN10: Connector (Fan motor)
CN12: Connector (Damper motor)
CN17: Connector (Fan speed 1/2/3/4)
CN13: Connector
CN14: Connector
CN113: Connector
CN114: Connector
CN19: Connector
CN119: Connector
CN21: Connector
CN121: Connector
CN23: Connector (CO
CN26: Connector (Bypass switching/CO
LGH-F940RVX2-E
8.10
10 ms
100 ms
Lossnay unit
CN32
Exhaust fan
motor
M
CN17
1
Supply fan
motor
M
2
GM
SW2
SW5
REACTOR
SW6
LINE FILTER
CN7
CN23
Definition of symbols
sensor power supply)
2
sensor input)
2
LGH-F1200RVX2-E
8.30
12.2
7.2
─ 10 ─
Power circuit board
(Lower unit)
Exhaust fan
motor
M
CN9
1
Supply fan
LED6
motor
M
CN10
2
CN114
CN119
CN113
GM
CN12
TAB1 TAB2
REACTOR
LINE FILTER
TM1
Power supply terminal
L
N
Isolator (Field supply)
POWER SUPPLY
208–230 V/60 Hz
L
N
CN32: Connector (Remote control selection)
CN34: Connector (CO
sensor output)
2
CN35: Connector (CO
sensor input)
2
CN50: Connector (Optional components: External
monitor output)
CN105: Connector (For IT communication)
SW11: Address setting rotary switch (ones digit)
SW12: Address setting rotary switch (tens digit)
LED1: Inspection indicator lamp
LED2: M-NET indicator lamp
LED3: Remote controller power supply indicator lamp
LED4, LED6: Power supply indicator lamp
LED5: CO
sensor power supply indicator lamp
2
(When the CO
sensor is connected)
2
SYMBOL
: Terminal block,
Power circuit board
(Upper unit)
CN9
LED6
CN10
CN121
CN113
CN12
TAB1 TAB2
: Connector on PCB

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