Toshiba RAV-SP180CT-UL, RAV-SP420CT-UL, RAV-SP300CT-UL, RAV-SP240CT-UL Under Ceiling Type, 31-EN

Under Ceiling Type Installation Manual

F31

(L29)

H01

H02

H03

H04

(P04)

H06

L03

L07

L08

L09

L10

(L29)

L20

L29

L30

L31

P01

P03

P04

P05

(P04)

P07

P10

P15

(L29)

P19

(L29)

P20

(P04)

SIM	Outdoor unit P.C.	Outdoor	Outdoor P.C. board ---- In the case of EEPROM error.	Entire stop
	board
			Current detect circuit, power voltage --- Minimum
	Outdoor unit		frequency was reached in the current releasing control or
	compressor	Outdoor	short-circuit current (Idc) after direct excitation was	Entire stop
	breakdown		detected
			Wiring error of compressor (open phase)
	Outdoor unit	Outdoor	Compressor circuit --- Compressor lock was detected.	Entire stop
	compressor lock		Wiring error of compressor (open phase)
	Outdoor unit current		Current detect circuit, outdoor unit P.C. board ---
		Outdoor	Abnormal current was detected in AC-CT or a phase loss	Entire stop
	detect circuit error
			was detected.
	Case thermostat	Outdoor	Malfunction of the case thermostat	Entire stop
	operation
	Outdoor unit low-		Current, high-pressure switch circuit, outdoor P.C. board
		Outdoor	--- Ps pressure sensor error was detected or low-pressure	Entire stop
	pressure system error
			protective operation was activated.
SIM	Duplicated header	Indoor	Indoor address setting error --- There are two or more	Entire stop
	indoor units		header units in the group.
	Group line in individual		Indoor address setting error --- There is at least one
SIM		Indoor	group-connected indoor unit among individual indoor	Entire stop
	indoor unit		units.
SIM	Indoor group address	Indoor	Indoor address setting error --- Indoor address group has	Entire stop
	not set		not been set.
SIM	Indoor power level not	Indoor	Indoor power level has not been set.	Entire stop
	set
SIM	Outdoor unit P.C.	Outdoor	In the case of outdoor P.C. board jumper wire (for service)	Entire stop
	board		setting error
		Network	Address setting, central control remote control, network
	LAN communication	adapter
SIM			adapter --- Duplication of address in central control	Auto-reset
	error	central
			communication
		control
			Other outdoor unit error	Entire stop
	Other outdoor unit		1) Communication error between IPDU MCU and CDB
SIM		Outdoor	MCU
	error			Entire stop
			2) Abnormal temperature was detected by the heat sink
			temp. sensor in IGBT.
	Abnormal external		External devices, outdoor unit P.C. board --- Abnormal
SIM	input into indoor unit	Indoor		Entire stop
			stop due to incorrect external input into CN80
	(interlock)
			Power supply phase sequence, outdoor unit P.C. board -	Operation
	Phase sequence error,			continued
SIM		Outdoor	-- Abnormal phase sequence of the 3-phase power
	etc.		supply	(thermostat
				OFF)
ALT	Indoor unit fan error	Indoor	Indoor fan motor, indoor P.C. board --- Indoor AC fan	Entire stop
			error (fan motor thermal relay activated) was detected.
ALT	Outdoor unit discharge	Outdoor	An error was detected in the discharge temp. releasing	Entire stop
	temp. error		control.
	Outdoor unit high-		High-pressure switch --- The IOL was activated or an
ALT		Outdoor	error was detected in the high-pressure releasing control	Entire stop
	pressure system error
			using the TE.
ALT	Open phase detected	Outdoor	The power cable may be connected incorrectly. Check	Entire stop
			open phase and voltages of the power supply.
ALT	Heat sink overheat	Outdoor	Abnormal temperature was detected by the temp. sensor	Entire stop
			of the IGBT heat sink.
	Indoor unit water		Drain pipe, clogging of drainage, float switch circuit,
ALT		Indoor	indoor P.C. board --- Drainage is out of order or the float	Entire stop
	overflow detected
			switch was activated.
ALT	Gas leakage detected	Outdoor	There may be gas leakage from the pipe or connecting	Entire stop
			part. Check for gas leakage.
		Outdoor	4-way valve, indoor temp. sensors (TC/TCJ) --- An error	Auto-reset
ALT	4-way valve error		was detected due to temperature drop of the indoor unit
		(Indoor)		(Auto-reset)
			heat exchanger sensor when heating.
ALT	High-pressure	Outdoor	High-pressure protection	Entire stop
	protective operation

31-EN – 31 –