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Initial start-up – Carrier Miracool 260L User Manual

Page 7

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7

„ 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.

TABLE 2 — UNIT DATA

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.

„ 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.

NOTE: For operation above 3,000-ft altitude, ther-

mostat should be adjusted by a qualified service

technician.

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.

UNIT

MC260,

MC300

MC750

MC1100,

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

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.

Allow 24 hours between temperature control adjust-

ments. Excessive tampering with temperature con-

trol could lead to service difficulties.

TEMPERATURE
CONTROL KNOB

FIGURE 9 — TEMPERATURE CONTROL KNOB

a79-9

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