Indoor Control Circuit; Indoor Controller Block Diagram - Toshiba RAV-HM401CTP Series Service Manual

6. INDOOR CONTROL CIRCUIT

6-1. Indoor Controller Block Diagram

6-1-1. Connection of Wired (Simple) Remote Controller
Indoor unit
#1 (Header)
Indoor control P .C. board (MCC-1643)
DC20V
DC5V
DC12V
Louver
motor
Drain
pump
Indoor
fan motor
Power circuit
DC280V
* Case of "1:1 model" connection interface (Option)
U3
Central controller
(Option) communication circuit
U4
Wired ( simple ) m a t s r e e r m o e t c
Display LCD
MCU
Display LED
Remote controller
communication circuit
A B
Remote controller
communication circuit
Driver
Outside
output
Run
Warning
Defrost
Thermo. ON
COOL
HEAT
FAN
P .C. board
(MCC-1440)
TCC-LINK
o n r t l o e l ( r M a . x 2 u n t i ) s
Function setup Display LCD
Key switch
CN2
CN1
DC5V
Power circuit
∗3
EEPROM
TA sensor
TC sensor
TCJ sensor
MCU
Float input
HA
Serial send/
receive circuit
AC
synchronous
signal input circuit
1 2 3
∗1 Up to 16 units (TU2C-Link) or 8 units (TCC-Link)
can be connected.
∗2 The "1:1 model" connection interface is mounted
1 2 3
to only 1 unit. "1:1 model"connection interface is
mounted to the header unit.
Outdoor unit
- 26 -
Schedule i t m r e
LCD driver
Function setup
MCU
Key switch
DC5V
Power Secondary
circuit battery
#2 #3
(Follower) (Follower)
A B A
Same as left Same as left
∗2 ∗2
1 2 3 1 2
Outdoor unit Outdoor unit
B
3