Outline Of Control; Operation Start/Operation End; Thermostat On/Thermostat Off; Outdoor Unit - Toshiba HFCR407C Service Manual

Operation start/Operation end

The compressor, solenoid valve, pulse motor valve (PMV), outdoor fan, etc. are controlled by a command from the indoor
controller. The slave outdoor unit starts/stops by a command from the master outdoor unit.
Operation signal from indoor
Inverter drive
Outdoor fan output
Fixed-speed Mg-SW output
Each solenoid valve output
4-way valve output (OFF in cooling time)
PMV A output

Thermostat ON/Thermostat OFF

Operation signal from indoor
11
Inverter drive
Outdoor fan output
Fixed-speed Mg-SW output
Each solenoid valve output
4-way valve output (OFF in cooling time)
PMV A output

Outline of control

Outdoor unit

Operation start
ON
OFF
ON
OFF
ON or OFF
OFF
(By command from indoor)
OFF ON or OFF
OFF
ON
Full
Specified opening
close
Thermostat ON
ON
OFF
ON
OFF
ON or OFF
OFF
(By command from indoor)
ON or OFF
OFF
ON
Full
Specified opening
close
54
Operation stop
2 minutes
30 seconds
Full
close
Thermostat OFF
2 minutes
30 seconds
Full
close