4. Service procedures

C.Check “Operation selector” switch in the indoor unit. : In case of wireless remote control unit (GS type)

• Has “Operation selector”

YES

switch been set to ON

 

position ?

 

 

 

 

 

NO

 

 

 

 

Set “Operation selector”

 

switch to ON.

 

But neither unit runs.

Switch Ass’y or P.C.B. Ass’y in the indoor unit is defective.

IND. LAMP Ass’y or P.C.B. Ass’y in the indoor unit

is defective.

0617_X_S

D.Check compressor motor protectors.

a)High pressure switch (63PH)

•Check high pressure switch. Does high pressure switch

actuate ? (63PH)

YES

•Is outdoor heat exchanger coil dirty or are there obstacles near air suction inlet of outdoor unit ?

NO

•Check if outdoor fan rotates. Refer to “Only outdoor fan does not run.”

Disconnect the socket from 2P (WHT) connector. Check the continuity between No.1 and No.2 poles of the socket.

 

 

 

YES

 

Clean heat exchanger coil

 

 

or remove obstacles.

 

 

 

 

 

 

0618_X_S

4

b)Compressor motor overcurrent relay (51C)

• Check compressor motor

NO

Refer to “CHECKING ELECTRICAL COMPONENTS

overcurrent relay. (51C)

 

 

 

 

 

 

Does it actuate ?

 

 

 

(Electro magnetic contactor)”.

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Consult power supply company

 

• Check power supply voltage.

YES

 

 

 

 

 

and restore voltage to

 

Is voltage 90% or less of

 

 

 

 

 

 

 

 

 

 

 

normal value.

 

rated voltage ?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO 90% or more of rated voltage.

•Following causes may be considered. Locked rotor of compressor.

Overcharged refrigerant.

0619_X_S

Air shortage of outdoor unit ventilation.

Obstacles in front of outdoor unit.

SM830043

– 59 –

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Page 59
Image 59
Sanyo SPW-C303G5, SPW-T363GS56, SPW-T483G56, SPW-T483GS56 Check compressor motor protectors High pressure switch 63PH
Page 58 Page 60

SPW-C303G5, SPW-T253GS56, SPW-T303GS56, SPW-C363G5, SPW-T303G56 specifications

The Sanyo SPW-C303G5, SPW-T483G56, SPW-C363G8, SPW-C363G5, and SPW-T483GS56 are part of Sanyo's innovative line of high-performance commercial air conditioning systems. These models are engineered for energy efficiency, maximizing comfort while minimizing operational costs.

The SPW-C303G5 stands out with its compact design and powerful cooling capabilities, making it suitable for small to medium-sized commercial spaces. Its inverter technology allows for smooth operation and quiet performance, adjusting the compressor speed to meet the cooling demand effectively. This model also features advanced air filtration systems, which enhance air quality by reducing pollutants and allergens.

In contrast, the SPW-T483G56 is a robust model ideal for larger commercial environments. Its enhanced cooling capacity is complemented by a user-friendly digital control system, allowing precise temperature settings and timer functions. The SPW-T483G56 is equipped with a heat pump feature, enabling both heating and cooling, which significantly increases its versatility.

The SPW-C363G8 and SPW-C363G5 models focus on energy conservation and efficient operation. Both systems utilize eco-friendly refrigerants in line with global environmental standards. The SPW-C363G8 is noted for its enhanced energy efficiency rating, making it an excellent choice for businesses aiming for sustainability. It incorporates advanced heat exchange technology that maximizes energy usage, ensuring lower utility bills.

The SPW-T483GS56 model features an upgraded control interface, allowing users to monitor and adjust settings remotely via a smartphone application. This connectivity empowers users to manage their cooling and heating needs from anywhere, providing increased convenience and ensuring comfort at all times.

All these models share Sanyo's commitment to durability and reliability, with robust construction designed to withstand the rigors of commercial use. Additionally, they come with comprehensive warranties, highlighting Sanyo's confidence in their performance and lifespan. With a combination of cutting-edge technology and user-centered design, the Sanyo air conditioning units provide optimal comfort solutions tailored for diverse commercial applications.
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