– 132 –
IPDU: Intelligent Power Drive Unit (Inverter P.C. board)
: Lighting, : Flashing, : Goes off
ALT.: Flashing is alternately when there are two flashing LED
SIM: Simultaneous flashing when there are two flashing LED
* Indicator light display of the receiving unit may be different from
those in the following table. (Wall type 3 series, etc.)
Check code
Display of receiving unit
Typical fault site
Description of error
Outdoor 7-segment display
TCC-LINK
central control
or main remote
controller
display
Indicator light block
Sub-code
Flash
Ready
Timer
Operation
Indoor-outdoor communication
circuit error
E06
Dropping out of indoor unit
E06
Indoor unit initially communicating normally fails to
return signal (reduction in number of indoor units
connected).
Number of indoor units
from which signal is
received normally
(E04)
—
E07
Signal cannot be transmitted to indoor units
(
→
indoor units left without communication from
outdoor unit).
Too many indoor units
connected/overloading
E16
E16
Combined capacity of indoor units is too large
(more than 125% of combined capacity of outdoor
units).
00: Overloading
01: Number of units
connected
E26
E26
Dropping out of outdoor unit
Follower outdoor unit initially communicating normally
fails to do so (reduction in number of follower outdoor
units connected).
Outdoor header unit detects fault relating to
follower outdoor unit (detail displayed on follower
outdoor unit).
Address of outdoor unit
from which signal is not
received normally
Error in number of outdoor
header units
There is no or more than one outdoor header unit
in one refrigerant line.
E19
E19
00: No header unit
02: Two or more header
units
01: TE1
02: TE2
Outdoor heat exchanger temperature sensors
(TE1, TE2) have been open/short-circuited.
F06
ALT
F06
Outdoor heat exchanger
temperature sensor (TE1, TE2)
error
E28
Outdoor follower unit error
Detected outdoor unit No.
E28
There is no communication between IPDUs (P.C.
boards) in inverter box.
Outdoor I/F board error
When power supply was turned on within 30 seconds
(before electric discharge of capacitor) after power
supply was reset
E31
IPDU communication error
Sub MCU communication error
E31
E20
E20
01: Connection of outdoor
unit from other
refrigerant line
02: Connection of indoor
unit from other
refrigerant line
Connection to other
refrigerant line found
during automatic address
setting
Indoor unit from other refrigerant line is detected
while indoor automatic address setting is in progress.
More than one indoor unit is assigned same
address (also detected at indoor unit end).
(E08)
E08
Duplicated indoor address
Duplicated indoor address
Indoor unit fails to communicate while automatic
address setting for indoor units is in progress.
Indoor unit not found during
automatic address setting
E15
—
E15
Outdoor discharge temperature sensor (TD1) has
been open/short-circuited.
Outdoor discharge
temperature sensor (TD1) error
F04
ALT
—
F04
Outdoor discharge temperature sensor (TD2) has
been open/short-circuited.
Outdoor discharge
temperature sensor (TD2) error
F05
ALT
—
F05
Outdoor liquid temperature sensor (TL) has been
open/short-circuited.
Outdoor liquid temperature
sensor (TL) error
F07
ALT
—
F07
Outdoor outside air temperature sensor (TO) has
been open/short-circuited.
Outdoor outside air temperature
sensor (TO) error
F08
ALT
—
F08
Outdoor-outdoor communication
transmission error
E23
Signal cannot be transmitted to other outdoor units.
—
E23
Duplicated follower outdoor
address
There is duplication in outdoor addresses set
manually.
E25
—
E25
• Indoor automatic address setting is started while
automatic address setting for equipment in other
refrigerant line is in progress.
• Outdoor automatic address setting is started while
automatic address setting for indoor units is in
progress.
E12
E12
Automatic address starting
error
01: Indoor-outdoor
communication
02: Outdoor-outdoor
communication
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
80
A3-IPDU
Circle ( ): Faulty IPDU
Fan
IPDU
Sub
MCU
1
2
3
List of Check Codes (Outdoor Unit)
(Errors detected by SHRM-i outdoor interface - typical
examples)
If “HELLO” is displayed on the outdoor 7-segment for
1 minute or more, turn off the power supply once and
then turn on the power supply again after passage of
30 seconds or more. When the same symptom
appears, it is considered there is a possibility of I/F
board error.
Summary of Contents for MMY-MAP0724FT6UL
Page 35: ...35 3 5 Parts Layout in Outdoor Unit 072 type Model MMY MAP0724FT...
Page 36: ...36 096 120 type Model MMY MAP0964FT MAP1204FT...
Page 37: ...37 3 6 Parts Layout in Inverter Assembly 208 230V model MMY MAP0724FT9UL...
Page 38: ...38 208 230V model MMY MAP0964FT9UL MMY MAP1204FT9UL...
Page 39: ...39 460V model MMY MAP0724FT6UL...
Page 40: ...40 460V model MMY MAP0964FT6UL MMY MAP1204FT6UL...
Page 41: ...41 3 7 Outdoor Inverter print circuit board 3 7 1 Interface P C board MCC 1606...
Page 42: ...42 3 7 2 Inverter P C board for compressor MCC 1595 A3 IPDU For 208 230V model MMY MAP 4FT9UL...
Page 43: ...43 3 7 3 Inverter P C board for compressor MCC 1596 A3 IPDU For 460V model MMY MAP 4FT6UL...
Page 44: ...44 3 7 4 Inverter P C board for fan motor MCC 1610 FAN IPDU...
Page 45: ...45 3 7 5 Noise Filter P C board MCC 1608 A B For 208 230V model MMY MAP 4FT9UL...
Page 46: ...46 3 7 6 Noise Filter P C board MCC 1625 A B C For 460V model MMY MAP 4FT6UL...
Page 195: ...195...
Page 197: ...197...
Page 257: ...257 15 EXPLODED DIAGRAM PARTS LIST Outdoor unit 15 1 MMY MAP0724FT9UL...
Page 258: ...258 15 1 MMY MAP0724FT9UL...
Page 262: ...262 15 1 Inverter Assembly MMY MAP0724FT9UL...
Page 264: ...264 15 2 MMY MAP0964FT9UL MMY MAP1204FT9UL...
Page 265: ...265 15 2 MMY MAP0964FT9UL MMY MAP1204FT9UL...
Page 269: ...269 15 2 Inverter Assembly MMY MAP0964FT9UL MMY MAP1204FT9UL...
Page 271: ...271 15 3 MMY MAP0724FT6UL...
Page 272: ...272 15 3 MMY MAP0724FT6UL...
Page 276: ...276 15 3 Inverter Assembly MMY MAP0724FT6UL...
Page 278: ...278 15 4 MMY MAP0964FT6UL MMY MAP1204FT6UL...
Page 279: ...279 15 4 MMY MAP0964FT6UL MMY MAP1204FT6UL...
Page 283: ...283 15 4 Inverter Assembly MMY MAP0964FT6UL MMY MAP1204FT6UL...