4-way Air Discharge Cassette 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

 

 

 

 

 

 

 

 

 

35-EN

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Page 36
Image 36
Toshiba RAV-SP180UT-UL installation manual 35-EN

RAV-SP180UT-UL specifications

The Toshiba RAV-SP180UT-UL is a cutting-edge commercial air conditioning unit designed to deliver exceptional cooling and heating performance. As part of Toshiba's advanced lineup of air conditioning systems, this model caters to diverse applications such as offices, retail spaces, and other commercial environments, ensuring comfortable conditions year-round.

One of the standout features of the RAV-SP180UT-UL is its powerful inverter technology. This technology enables the unit to adjust its cooling or heating output based on the current load requirements, resulting in significant energy savings and improved efficiency compared to conventional systems. It operates with a high Seasonal Energy Efficiency Ratio (SEER) and a Heating Seasonal Performance Factor (HSPF), making it an environmentally friendly choice for businesses seeking to reduce their carbon footprint.

Another key characteristic of the RAV-SP180UT-UL is its ultra-quiet operation. The unit is designed to minimize noise levels, providing a serene indoor environment that is ideal for workplaces and customer-facing areas. This low-noise performance is achieved through advanced fan engineering and acoustic insulation, ensuring that disruptions to work or leisure activities are kept to a minimum.

The RAV-SP180UT-UL also features flexible installation options, allowing for wall-mounted or ceiling-mounted configurations to suit various spatial requirements. Its compact design means that it can be installed in tight spaces without compromising on performance or aesthetics. The unit is equipped with a remote control for added convenience, enabling users to easily adjust settings, set timers, and switch between modes.

Moreover, the Toshiba RAV-SP180UT-UL is built with durability in mind. It utilizes high-quality materials and components that ensure long-lasting performance, even in demanding environments. The unit is also equipped with advanced filtration systems that enhance indoor air quality by removing dust, allergens, and other contaminants, contributing to a healthier workplace.

In summary, the Toshiba RAV-SP180UT-UL is a reliable and efficient solution for commercial air conditioning needs. Its inverter technology, quiet operation, flexible installation, and emphasis on durability make it a compelling choice for businesses looking to enhance comfort while maintaining energy efficiency. Whether for heating or cooling, this unit delivers consistent performance that meets the demands of modern commercial settings.