Carrier 1300L, 260L owner manual Initial Start-Up, „ Electrical Supply And Connections, Unit Data

„ELECTRICAL SUPPLY AND CONNECTIONS —

Check to be sure that the electrical service to the unit meets all local and national electrical codes. Unit elec- trical data is shown in the unit data label, located on the inside of the cabinet in the upper lefthand corner. Review this label before initiating electrical service. Voltage range of power supply to unit should be 105 to 125 volts. Refer to Table 2 for unit data.

NOTE: Other motors or heavy appliances should not be used on the same circuit with the cooler.

See Figure 1 for location of service cord.

Before servicing unit, disconnect electrical service. On sizes 1100L and 1300L, turn disconnect switch (located on power cord) to the OFF position. Failure to disconnect electrical service could result in elec- trical shock and cause personal injury or death.

If an extension cord is necessary, use only three- wire grounding type. The use of ungrounded cords or overloaded circuit voids compressor warranty.

INITIAL START-UP

„POWER SUPPLY — Connect unit to power supply. On sizes 1100L and 1300L, turn disconnect switch to the ON position. Check to verify that the compressor, lamp, and fans are running.

IMPORTANT: Low line voltage is often the cause of service complaints. Check to see that the line volt- age is within specified range with the unit running.

„TEMPERATURE CONTROL — The temperature control knob is located in the front power panel. See Figure 9. Unit is factory set at the number 4 position (normal), which will maintain the product at approxi- mately 38 F. For colder temperature, turn the black adjustment knob to a higher setting. Adjust tempera- ture control in small increments, one position at a time.

Allow 24 hours between temperature control adjust- ments. Excessive tampering with temperature con- trol could lead to service difficulties.

NOTE: For operation above 3,000-ft altitude, ther- mostat should be adjusted by a qualified service

TABLE 2 — UNIT DATA

UNIT	MC260,	MC750	MC1100,
	MC300		MC1300
Voltage
Nominal	115	115	115
Range	105-125	105-125	105-125
Frequency	60	60	60
Total Amps	4.6	8.9	10.6
Refrigerant Type	R-134A	R-134A	R-134A
Charge Amount (oz)	4.3	7.5	14.5
Design Pressure
High Side (psig)	220	265	222
Low Side (psig)	88	93	88

technician.

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TEMPERATURE CONTROL KNOB

FIGURE 9 — TEMPERATURE CONTROL KNOB

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