Sanyo STW0923C2 - User Manual

TECHNICAL & SERVICE MANUAL
STW-2 Series
REFERENCE NO. SM700508
PACKAGED TERMINAL
AIR CONDITIONERS (PTAC)
FILE NO.
Destination: U.S.A.
Capacity Class Model No.
6,000 BTU
STW0622C2
9,000 BTU
STW0922C2
12,000 BTU
STW1222C2
COOLING & ELECTRIC HEATING MODEL (230/208 V)
Heater
2.55 kW
2.55 kW
2.55 kW
Product Code No.
1 851 006 46
1 851 006 48
1 851 006 51
STW0623C23.45 kW 1 851 006 47
STW0923C23.45 kW 1 851 006 49
STW0925C25.00 kW 1 851 006 50
15,000 BTU
STW1522C22.55 kW 1 851 006 53
STW1223C23.45 kW 1 851 006 44
STW1225C25.00 kW 1 851 006 52
STW1523C23.45 kW 1 851 006 54
STW1525C25.00 kW 1 851 006 55
COOLING & ELECTRIC HEATING MODEL (265 V)
Capacity Class Heater Model No. Product Code No.
6,000 BTU
3.00 kW STW0633C2 1 851 006 56
4.00 kW STW0634C2 1 851 006 57
9,000 BTU
3.00 kW STW0933C2 1 851 006 58
4.00 kW STW0934C2 1 851 006 59
12,000 BTU
3.00 kW STW1233C2 1 851 006 60
4.00 kW STW1234C2 1 851 006 61
5.00 kW STW1235C2 1 851 006 62
15,000 BTU
4.00 kW STW1534C2 1 851 006 63
5.00 kW STW1535C2 1 851 006 64
Capacity Class Model No.
6,000 BTU
STW0622H2
9,000 BTU
STW0922H2
12,000 BTU
STW1222H2
HEAT PUMP MODEL (230/208 V)
Heater
2.55 kW
2.55 kW
2.55 kW
Product Code No.
1 851 006 65
1 851 006 67
1 851 006 70
STW0623H23.45 kW 1 851 006 66
STW0923H23.45 kW 1 851 006 68
STW0925H25.00 kW 1 851 006 69
15,000 BTU
STW1522H22.55 kW 1 851 006 73
STW1223H23.45 kW 1 851 006 71
STW1225H25.00 kW 1 851 006 72
STW1523H23.45 kW 1 851 006 74
STW1525H25.00 kW 1 851 006 75
HEAT PUMP MODEL (265 V)
Capacity Class Heater Model No. Product Code No.
6,000 BTU
3.00 kW STW0633H2 1 851 006 76
4.00 kW STW0634H2 1 851 006 77
9,000 BTU
3.00 kW STW0933H2 1 851 006 45
4.00 kW STW0934H2 1 851 006 78
12,000 BTU
3.00 kW STW1233H2 1 851 006 79
4.00 kW STW1234H2 1 851 006 80
5.00 kW STW1235H2 1 851 006 81
15,000 BTU
4.00 kW STW1534H2 1 851 006 82
5.00 kW STW1535H2 1 851 006 83
PACKAGED TERMINAL
HEAT PUMPS (PTHP)

Sanyo STW0923C2 Specifications

General

Cooling Capacity	9000 BTU/h
Power Supply	220-240V, 50Hz
Refrigerant	R410A
Weight (Outdoor Unit)	25 kg
Operating Temperature (Cooling)	18°C to 43°C
Operating Temperature (Heating)	-7°C to 24°C

Summary

Important Safety Information

Before Starting Installation & Operation

Critical safety guidelines and reading instructions before work.

Special Precautions

Specific warnings for wiring, transporting, and servicing.

Operating Range

Performance Data

Cooling Capacity

Cooling performance data across various temperature conditions.

Heating Capacity (Heat Pump Performance)

Heating performance graph and notes for heat pump models.

Electrical Data

Electrical Characteristics

Electrical ratings and power input for different models.

Electrical Wiring Diagrams

Wiring schematics for cooling and heat pump models.

Troubleshooting

Check before and after troubleshooting

Air conditioner does not operate

Troubleshooting steps for a non-operating unit.

Some part of air conditioner does not operate

Diagnosing issues when only parts of the unit function.

Air conditioner operates, but abnormalities are observed

Troubleshooting abnormal operation like mode switching or poor performance.

If a sensor is defective

Diagnosing issues related to defective room temperature sensors.

Checking Electrical Components

Measurement of Insulation Resistance

Checking Motor Capacitor

Function

Room temperature Control

Freeze Prevention

How the unit prevents freezing of the indoor heat exchange coil.

Freeze Protection

Defrosting Operation (Heating)