6. INDOOR CONTROL CIRCUIT

6-1. Indoor Controller Block Diagram

RAV-SM2242DT-E, RAV-SM2802DT-E / RAV-SM2242DT-TR, RAV-SM2802DT-TR

6-1-1. Connection of Wired (Simple) Remote Controller

Wired (Simple) Master remote controller

Schedule timer

(Max. 2 units)

 

 

 

 

Display part

 

Function

 

Display part

Driver

 

 

 

 

 

 

 

 

 

LCD

 

 

setup

 

 

LCD

LCD

 

 

 

 

 

 

 

 

Display part

 

CPU

Key switch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CN1

 

 

 

Function

 

 

 

 

 

LED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CN2

 

CPU

 

setup

 

 

 

 

 

 

 

 

Power supply

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Key switch

 

 

 

 

 

 

 

DC5V

circuit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Remote controller

 

 

*3

Power supply

 

 

Secondary

 

 

 

 

 

communication

 

 

 

 

 

 

 

 

 

 

 

 

 

circuit

 

DC5V

battery

 

 

 

 

 

 

 

circuit

 

 

 

 

 

 

 

Indoor unit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

#1 (Header)

 

 

 

A

 

B

 

 

 

 

#2

 

 

#3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Network adapter (Option)

 

 

 

 

 

 

 

 

 

(Follower)

 

(Follower)

 

 

 

 

 

 

 

 

 

 

 

 

A

B

 

A

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Network adapter

 

 

Indoor control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P.C. board

 

 

 

 

 

 

 

 

 

 

 

 

 

P.C. board

 

 

(MCC-1403)

 

 

 

 

 

 

 

 

 

 

 

 

 

(MCC-1401)

Remote controller

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

communication

DC20V

Remote controller

 

 

 

 

 

 

 

 

 

 

 

 

 

circuit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

communication

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

circuit

 

 

 

 

 

 

 

 

 

 

 

X

AI net

 

CPU

 

 

 

 

 

 

 

EEPROM

 

 

 

 

 

 

Y

communication

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H8/3687

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

circuit

 

 

 

DC5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DC5V

 

 

 

 

 

 

 

 

 

TA sensor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power supply

Switch

Power supply

DC12V

 

CPU

TC sensor

Same as

Same as

 

 

 

 

 

circuit

set

circuit

 

 

 

 

left ∗2

 

left ∗2

 

 

 

H8/3039

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TCJ sensor

 

 

 

 

 

 

 

Transformer

 

 

 

 

Driver

 

 

 

Float input

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Central control

 

Drain

 

 

 

 

 

 

 

Serial send/

 

 

 

 

 

 

 

pump

 

 

 

 

 

 

 

 

 

 

 

 

 

remote controller

 

 

 

 

 

 

 

 

 

receive circuit

 

 

 

 

 

 

(Option)

(Sold separately)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AC synchronous

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Outside

signal input circuit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

output

 

 

 

 

1

2

3

1

2

3

 

 

 

 

 

 

 

START

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALARM

 

 

 

 

 

 

 

 

 

 

 

 

Indoor

 

Fan motor

READY

 

 

 

 

 

 

 

 

 

 

 

 

 

THERMO ON

 

 

 

 

 

 

 

 

 

 

 

 

fan motor

 

relay circuit

 

 

 

 

 

 

 

 

 

 

 

 

 

COOL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HEAT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Transformer

 

 

1

2

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Outdoor

Outdoor

 

 

 

 

 

 

 

 

 

 

 

 

 

unit

 

unit

 

 

 

 

 

 

 

 

1

2

3

 

 

 

 

 

 

 

Outdoor unit

Max. 8 units are connectable. ∗1

∗1 However when mounting a network adapter while 2 wired (simple) remote controllers are connected, Max. 7 units are connectable.

∗2 A network adapter is mounted to only 1 unit.

∗3 Connection of schedule timer to the simple remote controller is unavailable.

– 22 –

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Toshiba RAV-SM2242DT-TR Indoor Controller Block Diagram, Connection of Wired Simple Remote Controller, Outdoor unit
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RAV-SM2802DT-TR, RAV-SM2242DT-TR, RAV-SM2802DT-E specifications

Toshiba has long been a leader in heating, ventilation, and air conditioning (HVAC) technology, offering innovative solutions that cater to both residential and commercial needs. Among their impressive lineup, the Toshiba RAV-SM2802DT-E and RAV-SM2242DT-E stand out as exceptional models designed for efficiency, performance, and comfort.

The RAV-SM2802DT-E is a powerful unit ideal for larger spaces, boasting a cooling capacity of 28,000 BTU/h and a heating capacity of 31,000 BTU/h. This model features a highly efficient inverter compressor, which adjusts the power consumption based on the cooling or heating demand, ensuring optimal energy use. This inverter technology not only reduces energy consumption but also maintains a stable indoor temperature for enhanced comfort.

On the other hand, the RAV-SM2242DT-E is tailored for mid-sized applications with a cooling capacity of 22,000 BTU/h and a heating capacity of 25,000 BTU/h. This model also embraces inverter technology, promoting lower operational costs while delivering reliable performance. Both units come with a high energy efficiency rating, reducing environmental impact and saving on utility bills.

One of the key characteristics of these Toshiba models is their advanced filtration system. Equipped with a high-performance filtration mechanism, they can effectively reduce dust, allergens, and other pollutants, ensuring a healthier indoor environment. The units also operate quietly, contributing to a peaceful atmosphere, whether in a home, office, or commercial space.

Both the RAV-SM2802DT-E and RAV-SM2242DT-E are designed with user convenience in mind. They come with a user-friendly remote control, allowing for easy adjustments and settings from anywhere in the room. Compatibility with smart home systems further enhances user experience by enabling remote monitoring and control through smartphones or tablets.

Constructed with durability in mind, these units are built to withstand diverse weather conditions, making them suitable for various climatic environments. Additionally, their aesthetic design allows for seamless integration into any setting, ensuring that performance does not compromise on looks.

In summary, Toshiba's RAV-SM2802DT-E and RAV-SM2242DT-E offer a blend of superior technology, energy efficiency, and user-friendly features. With their inverter technology, advanced filtration systems, and durable designs, these models represent Toshiba's commitment to quality and innovation in the HVAC industry. Whether for residential or commercial applications, these units guarantee comfort and reliability all year round.
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