Electrical Wiring Diagrams - Mitsubishi Electric LGH-250RVXT-E Handbook

4. Electrical wiring diagrams

LGH-150RVXT-E, LGH-200RVXT-E
* TM1, TM2, TM3, TM4, TB5 shown in dotted lines are fi eld work.
* Be sure to connect the earth wire.
* A power supply isolator must be installed.
* Always use an isolator for the main switch power connection.
* Select proper circuit breaker according to the electrical current
shown in the right chart.
M
3
EXHAUST
FAN MOTOR
(Inside)
M
2
SUPPLY
FAN MOTOR
(Inside)
M
4
EXHAUST
FAN MOTOR
(Outside)
M
1
SUPPLY
FAN MOTOR
(Outside)
GM
M1: Motor for supply fan (outside)
M2: Motor for supply fan (inside)
M3: Motor for exhaust fan (inside)
M4: Motor for exhaust fan (outside)
GM: Motor for By-pass damper
TH1: Thermistor for outside air
TH2: Thermistor for return air
SW2,5: Switch (Function selection)
TM1: Terminal block (Power supply)
TM2: Terminal block (External control input)
TM3: Terminal block (Monitor output)
TM4: Terminal block (Transmission cable)
TB5: Terminal block (M-NET Transmission cable)
Bypass monitor or Pre-
heater signal output (*1)
Printed Circuit Board 1
(Power circuit board 1)
CN9
LED6
CN10
CN119
CN118
TAB2 TAB1
TAB5
Printed Circuit Board 2
(Power circuit board 2)
CN9
LED6
CN121
CN10
CN7
TAB2
TAB1
Definition of symbols
TAB1, TAB2, (TAB5): Connector (Power supply)
X13: Relay contact
X14: Relay contact
X15: Relay contact
CN5: Connector (Thermistor RA)
CN7: Connector (Motor for By-pass damper)
CN9: Connector (Fan motor)
CN10: Connector (Fan motor)
CN17: Connector (Fan speed 1/2/3/4)
CN18: Connector
CN118: Connector
CN19: Connector
CN119: Connector
Model
Maximum current when operating
Inrush current after
power supply turned ON
(*1)
MAX 240 V AC 1 A MIN 220 V AC 100 mA
Malfunction monitor
7
output (*1)
Operation monitor
8
output (*1)
9
COM
10
PZ-
61DR-E
1
2nd remote controller
(Max. 2 controllers)
2
2nd Lossnay unit
(Max. 15 units)
A
M-NET-
transmission cable
B
Shielded Wire
S
1
12 V or
Volt-free
24 V DC
2
contact
Mr. Slim
(non-polar)
3
REACTOR
LINE
FILTER
REACTOR
─ 6 ─
LGH-150RVXT-E LGH-200RVXT-E
5.6 A
10 ms 12.1 A
100 ms
24 V DC 1 A 5 V DC 100 mA
TM3
CN20(GR)
CN26(WH)
CN32(WH)
X15 X14 X13
CN17(RE)
TM4
LED3
Printed Circuit Board
for control
(Control circuit board)
TB5
LED4
LED2
LED1
TM2
SW2
SA1 SA2
SW5
CN21
CN19
CN18
CN5
CN22
TH1(OA)
TH2(RA)
Isolator
(Field supply)
L
L
N
N
POWER SUPPLY
PE
220-240V/ 50Hz
220V/ 60Hz
TM1
CN20: For optional components
CN22: Connector (Thermistor OA)
CN26: Connector (By-pass, 0 - 10 V DC Fan speed control)
CN32: Connector (Remote control selection)
SA1: Address setting rotary switch (tens digit)
SA2: Address setting rotary switch (ones digit)
LED1, LED2: Inspection indicator lamp
LED3: Remote controller power supply indicator lamp
LED4, LED6: Power supply indicator lamp
SYMBOL : Terminal block
: Connector on PCB
6.4 A
6.6 A