(4) Limit for maximum compressor motor speed

by indoor fan speed

When outdoor temperature sensor detected 32° C

or lower, and indoor heat exchanger sensor

detected 17° C or lower, the maximum compressor

motor speed is limited by the indoor fan speed.

FILE NO. SVM-03008

6)Control 6 (F zone) : Operation stop zone If TD detect value exceeds 117° C during operation, stop the operation immediately.

Then, restart the operation when TD detect value becomes 105° C or lower.

For example, the compressor motor speed is

limited as described in the table below.

 

Table 8-2-1

 

 

Air flow rate

RAS-13UKV-E2

(rps)

 

 

 

HIGH

77

 

 

M+

65

 

 

MED.

53

 

 

L–, L

30

TD Zone

(° C)

F

117

E

112

D

108

C

105

B

98

Operation stop zone

 

Normal down zone

 

of motor speed

Release of

Slow down of

motor speed

motor speed

 

Keep zone :

Motor speed is not changed.

Slow-up zone of motor speed

UL, SUL

30

rps : round per second

(5)Louver control

The vertical air flow louvers are automatically set to horizontal or cool memory position.

When temperature of indoor heat exchanger becomes 5° C or lower by the prevent-freezing control and the compressor is turned off, the vertical air flow louvers close once and then return to the position of previous time.

(6)Discharge temperature control (Common control to cooling and heating)

The discharge temperature of refrigerant gas from the compressor is detected by the discharge temperature sensor, and controls operating compressor motor speed.

1)Control 1 (A zone) : Normal operation zone When TD detect value is 98° C or lower, the operation is performed with operating motor speed instructed by the serial signal.

2)Control 2 (B zone) : Slow-up zone of motor

speed

When TD detect value is 98° C or higher, operating motor speed is slowly up.

3)Control 3 (C zone) : Keep zone

When TD detect value is 105° C or higher, operating motor speed is not changed if raising operation speed.

4)Control 4 (D zone) : Slow down zone of motor

speed

When TD detect value is 108° C or higher, operating motor speed is slowly down.

5)Control 5 (E zone) : Normal down of motor

speed

When TD detect value is 112° C or higher, operating motor speed is down.

A

Normal operation zone

Fig. 8-2-3 Compressor motor speed control

(7)ECO operation control

When the ECO button of the remote control is pushed, quiet and mild operation is performed by restraining air flow and operating motor speed.

1)Indoor air flow is controlled between SUL and L.

2)The set temperature increases 0.5° C per 1 hour up to +2° C starting from the set temperature when ECO mode has been received.

TA [° C]

rps

FAN

 

40

L

+4.0

35

 

31

 

+3.5

 

27

 

+3.0

L−

22

+2.5

 

18

 

+2.0

 

13

 

+1.5

 

 

UL

+1.0

 

 

 

+0.5

 

 

Tsc

 

 

− 0.5

 

SUL

− 1.0

 

−2.0

OFF

Fig. 8-2-4

– 27 –

Page 27 Page 29
Page 28
Image 28
Toshiba RAS-13UAV-E2, RAS-13UKV-E2 service manual Limit for maximum compressor motor speed, By indoor fan speed
Page 27 Page 29

RAS-13UAV-E2, RAS-13UKV-E2 specifications

The Toshiba RAS-13UKV-E2 and RAS-13UAV-E2 air conditioning units represent a significant step forward in both comfort and energy efficiency. Designed for residential and light commercial use, these models are packed with features that cater to diverse climate control needs while adhering to modern standards of sustainability.

One of the standout features of both models is the implementation of inverter technology. This advanced system allows for more precise temperature control by adjusting the compressor speed based on the ambient temperature requirements. This not only enhances energy efficiency but also ensures a quieter operation compared to traditional air conditioning systems. As a result, users benefit from consistent comfort without the disruptive sounds often associated with cooling units.

The RAS-13UKV-E2 and RAS-13UAV-E2 also feature a high energy efficiency rating, which is crucial for reducing electricity bills. The Seasonal Energy Efficiency Ratio (SEER) is a vital measure of energy efficiency over an entire cooling season. Both units excel in this regard, making them an environmentally friendly choice. This is further supported by Toshiba's commitment to incorporating R32 refrigerant, known for its lower environmental impact compared to older refrigerants.

User convenience is enhanced with integrated smart controls. Both models are compatible with wireless remote control features, allowing for easy adjustments from a distance. This is complemented by programmable settings that let users schedule operation times, ensuring that the units run only when needed, which further optimizes energy consumption.

Design-wise, these air conditioners boast a sleek and modern appearance, making them a visually appealing addition to any room. They are constructed with durable materials that ensure longevity and reliability. Moreover, the filters are designed for easy maintenance, ensuring cleaner indoor air quality and prolonging the lifespan of the unit.

The Toshiba RAS-13UKV-E2 and RAS-13UAV-E2 units also come equipped with advanced air purification technologies. These features help to reduce airborne pollutants and allergens, contributing to a healthier indoor environment. With exceptional cooling and heating capabilities, easy installation, and advanced features, these models are designed to meet the modern user's needs for comfort, efficiency, and health. Overall, they represent an excellent investment in both cooling technology and eco-friendly practices.
Top Page Image Contents