Control Block Diagram; Indoor Unit - Carrier 42NQV009E Service Manual

7-1. Indoor Unit

Heat Exchanger Sensor
Temperature Sensor
Infrared Rays Signal Receiver
Initiallizing Circuit
Infrared
Rays
Clock Frequency
Oscillator Circuit
36.7KHz
Power Supply
Circuit
Remote
Control
Noise Filter
From Outdoor Unit
REMOTE CONTROL

7. CONTROL BLOCK DIAGRAM

Indoor Unit Control Panel
Functions
• Louver Control
• 3-minute Delay at Restart for Compressor
• Motor Revolution Control
• Processing
(Temperature Processing)
• Timer
• Serial Signal Communication
Serial Signal Transmitter/Receiver
Serial Signal Communication
Remote Control
Operation (ON/OFF)
Operation Mode Selection
AUTO, COOL, DRY, HEAT
Temperature Setting
Fan Speed Selection
ON TIMER Setting
OFF TIMER Setting
Louver Auto Swing
Louver Direction Setting
ECO
– 22 –
FILE NO. SVM-07018
M.C.U.
Louver ON/OFF Signal
Louver Driver
Infrared
Rays
Operation
Display
Timer
Display
DE-FROST
Sign Display
Filter
Display
Indoor Fan
Motor
Louver Motor