51
C
ENTRALIZED
C
ONTROL
S
YSTEMS
3) Description of parts
①
④
③
⑤
⑥
②
⑦
CN4
CN3
RED
CN2
BLK
YE
L
RED Y-GRN
⑧
No.
Name
Description
①
''
communication
connector
Communication terminal that
connects to outdoor unit /
''PG&37
②
Power connector
DC12V
③
Communication
LED
Communication indicator LED
(Left LED 3 : No function
Middle RED : Blinks
during
it communicates with upper
level controller
Right Y-GRN : Blinks during it communicates with ERV)
④
Address setting
switch
Sets the address of interface module
⑤
Software update
connector
6TJOHUIJTDPOOFDUPS*OUFSGBDFNPEVMFTPGUXBSFDBOCF
updated
⑥
7-segment
Displays the communication status between interface
module and ERV
⑦
Upper level controller
communication
channel
Communication terminal to upper level controller R1/R2
⑧
DIP switch
SW4
1 2 1 2
SW5
SW5 - No use
SW4
Description
1
0'' "VUPBEESFTTTFUUJOHTXJUDINVTUCFEPXO
0/ .BOVBMBEESFTTTFUUJOHTXJUDINVTUCFVQ
2
0'' /FXDPNNVOJDBUJPOVQQFSMFWFMDPOUSPMMFS
↔
Conventional communication ERV)
(Conventional communication upper level
controller
↔
New communication ERV)
ON (New communication upper level controller
↔
New communication ERV)
✽
8IFOVQHSBEJOHUIFQSPHSBN48NVTUCFTFUUP0/
status before proceeding upgrade regardless of the installation
condition.
"GUFSDPNQMFUJOHUIFEPXOMPBETFUUIF%*1TXJUDI
correctly according to installation condition before supplying
the power.
;
Note
8IFODPOOFDUJOHUPUIFDPOWFOUJPOBMDPNNVOJDBUJPODPOUSPMMFSBEESFTTNVTUCF
TFUNBOVBMMZSFHBSEMFTTUPUIF48TFUUJOH8IFOTFUUJOHUIFBEESFTTNBOVBMMZ
make sure to set the address that is not assigned to other deivce already.
8IFODPOOFDUJOHUPUIFOFXDPNNVOJDBUJPODPOUSPMMFS48NVTUCF0/UPTFU
UIFBEESFTTNBOVBMMZBOENBLFTVSFUPTFUUIFBEESFTTUIBUJTOPUBTTJHOFEUP
other compatible interface module or outdoor units.
