Wiring Diagram - Mitsubishi Electric TRANE NTXAMT12A112AA Service Manual

7. WIRING DIAGRAM

1
SW1
(BLUE)
CN3C
3
SW2
CN90
OFF
1
SWE
2
ON
3
SW5
4
5
6
7
8
9
LED3
(GREEN)
CNF
CN44 CN4F
1 1
2 2
3 3
4 4
1 2 3 4 5 6 7 8 9
CN1
LED1
BZ1
RU
SW1 SW2
t ~
t~ t~
W.B.
OPTIONAL PARTS
TH2 TH5 TH1
SYMBOL EXPLANATION
SYMBOL NAME SYMBOL
I.B. INDOOR CONTROLLER BOARD I.B.
CN24-1 CONNECTOR (HEATER CONTROL 1ST)
CN24-2 CONNECTOR (HEATER CONTROL 2ND)
CN25 CONNECTOR (HUMIDITY OUTPUT)
CN2A CONNECTOR (0-10V ANALOG INPUT)
CN2C CONNECTOR (ERV OUTPUT) P.B.
CN2L CONNECTOR (LOSSNAY)
CN32 CONNECTOR (REMOTE SWITCH)
CN41 CONNECTOR (HA TERMINAL-A)
CN51 CONNECTOR (CENTRALLY CONTROL)
CN90 CONNECTOR (WIRELESS)
CN105 CONNECTOR (RADIO FREQUENCY INTERFACE)
CNER CONNECTOR (ERV INPUT)
CNF CONNECTOR (HUMIDITY INPUT)
LED1 LED(POWER SUPPLY)
LED2 LED(REMOTE CONTROLLER SUPPLY)
TB15
LED3 LED(TRANSMISSION INDOOR-OUTDOOR)
Manipulation Details
1.Performing a test run for fan
To perform a test run for the fan,
turn on the SWE on the control board while the indoor unit is being powered.
Be sure to turn off the SWE after completing a test run.
Note) The SWE should not be left turned on for longer than 10 hours.
Specifications are subject to change without notice.
NTXAMT12, 18, 24, 30, 36A112AA
RFI
I.B.
CN32 5
4
(RED)
3
CN105
2
1
LED2
(BLACK)
CN2A
CN41
(RED)
CN25
CNER
2
(BLUE)
1
CN22
(BLACK) (BLUE)
CN51
CN2C CN24-2
(BLUE)
CNXB2
LED1
CNXA2
1
(RED) (YELLOW) (RED)
2 1
CN20 CN24-1 CN2L
CNXC2
3 2
1 4 1 3
2 5 2 4
NAME SYMBOL
INDOOR CONTROLLER BOARD OPTIONAL PARTS
SW1 SWITCH (FOR MODEL SELECTION) W.B. IR WIRELESS REMOTE CONTROLLER BOARD
SW2 SWITCH (FOR CAPACITY CODE) RU RECEIVING UNIT
SW5 SWITCH (FOR MODE SELECTION) BZ1 BUZZER
SWE CONNECTOR (EMERGENCY OPERATION) LED1 LED(RUN INDICATOR)
POWER SUPPLY BOARD SW1 SWITCH(HEATING ON/OFF)
F01 FUSE AC250V 6.3A SW2 SWITCH(COOLING ON/OFF)
ZNR01,02 VARISTOR R.B. WIRED REMOTE CONTROLLER BOARD
DSA ARRESTOR TERMINAL BLOCK
TB6
AUX. RELY (REMOTE CONTROLLER TRANSMISSION LINE)
X10
TH1
INTAKE AIR TEMP. THERMISTOR
TH2
PIPE TEMP. THERMISTOR/LIQUID
TH5
COND./EVA.TEMP. THERMISTOR
TERMINAL BLOCK
TB4
(INDOOR/OUTDOOR CONNECTING LINE)
TERMINAL BLOCK
(REMOTE CONTROLLER TRANSMISSION LINE)
RADIO FREQUENCY INTERFACE FOR RF
RFI
THERMOSTAT
2.OPERATION of LED for indoor circuit board service
INSIDE SECTION OF CONTROL BOX
P.B.
(RED)
CND
1 3 5
DSA
F01
U
AUX. RELY
ZNR01
ZNR02
U
DC280-340V
X10
RECTIFIER CIRCUIT
(BLUE)
CNXB1 CNXC1 CNXA1 CNMF
1 2 3 4 5 1 2 1 2 3 4 7 6 5 4 1
MS
3~
FAN MOTOR
NAME
Note1.Since the outdoor side electric wiring may change be sure
to check the outdoor unit electric wiring for servicing.
2.Indoor and outdoor connecting wires are made with
polarities,make wiring matching terminal numbers
(S1,S2,S3).
3.Symbols used in wiring diagram above are as follows.
4.Use copper supply wire.
UTILISER DES FILS D'ALIMENTATION EN CUIVRE.
Symbol LED operation under normal state
LED1
At applying main power source Lighting
LED2
At receiving MA transmission power source Lighting
LED3 At transmitting indoor-outdoor units Flashing
28 © 2022 Mitsubishi Electric Trane HVAC US LLC. All rights reserved.
TRANSMISSION
WIRES DC 12V
TB15
TB6
1
1
2
2
R.B.
REMOTE CONTROLLER
TB4
S1
OPTIONAL PARTS
S2
TO OUTDOOR UNIT
S3
MODEL SWITCH
ON ON ON
NTXAMT12A112AA
1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 6 7 8
ON ON ON
NTXAMT18A112AA
1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 6 7 8
ON ON ON
NTXAMT24A112AA
1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 6 7 8
ON ON ON
NTXAMT30A112AA
1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 6 7 8
ON ON ON
NTXAMT36A112AA
1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 6 7 8
:CONNECTOR
:TERMINAL
:(HEAVY DOTTED LINE):FIELD WIRING
:(THIN DOTTED LINE):OPTIONAL PARTS