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- Page 1 INSTRUCTION MANUAL ™ T-Series Air Conditioner T53 Model Protecting Electronics. Exceeding Expectations. ™ 5736 North Michigan Road Indianapolis, IN 46228 317-257-6811 317-257-1590 fax www.McLeanParts.net 10-1008 109- 9-Re Rev. 6...
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Page 2: Table Of Contents
TABLE OF CONTENTS Receiving the Air Conditioner ..............1 Handling and Testing the Air Conditioner........... 1 Installation....................2 Design Data, Model Drawing ..............3 Mounting Instructions.................. 4 Components List..................4 Wire Diagrams .................... 5 Temperature Control................... 6 Principles of Operation ................6 Maintenance .................... -
Page 3: Installation
Operate the air conditioner for five (5) to ten (10) minutes. No excessive noise or vibration should be evident during this run period. The condenser blower (ambient air), the evaporator impeller (enclosure air), and the compressor should be running. Condenser air temperatures should be warmer than normal room temperatures within a few minutes. The compressor is provided with automatic reset thermal overload protection. -
Page 4: Design Data, Model Drawing
Amps Phase Temp °F/°C Lbs/Kgs T53-1926-XXX 50/60 17.0/19.0 18,000/20,000 131/55 197/89 XXX replaced with a three-digit number designating all desired options. Consult the MAI for specific model numbers. T53 Model Drawing (Surface Mount) 10-1008-109 rev 6 317-257-6811 www.McLeanParts.net 317-257-1590 fax... -
Page 5: Mounting Instructions
T53 Mounting Cutout Dimensions T53 Series Components List Part Description Part Number Blower Motor, Condenser 10-1020-57 Blower Motor, Evaporator 10-1020-10 Compressor 10-1026-110 Capacitor, Compr Run, 35μF 52-6032-06 Capacitor, Condr Blower Motor, 7.5μF 52-6084-00 Capacitor, Evap Blower Motor, 52-6084-05 5 μF... -
Page 6: Wire Diagrams
T53 Generic Wire Diagram (w/ optional heater) 10-1008-109 rev 6 317-257-6811 www.McLeanParts.net 317-257-1590 fax... -
Page 7: Temperature Control
TEMPERATURE CONTROL The electromechanical thermostat is factory preset to 75°F/23°C. To change the temperature setting, remove the nylon plug from the back face of the unit. Use a standard screwdriver to adjust thermostat. For cooler temperatures turn clockwise, for warmer temperatures turn counterclockwise. PRINCIPLES OF OPERATION If electrical power to the air conditioner is interrupted and reapplied immediately, (within 3 to 5 seconds), the compressor may not restart due to the high back pressure of the compressor. - Page 8 Inlet Air Filter Con’t It is recommended that power to the air conditioner be interrupted intentionally when abnormally high compressor operating temperature causes automatic shutdown of the unit. The above described shutdown is symptomatic of clogged or dirty filter, thus causing a reduction in cooling airflow across the surface of the compressor and condenser coil.
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Page 9: Trouble Shooting
TROUBLE SHOOTING Basic Air Conditioning Trouble Shooting Check List Check manufacturer’s nameplate located on the unit for correct power supply. 2. Turn the power to the unit on. The evaporator (Enclosure or “COLD” air) blower should come on. Is there airflow? YES, proceed to step # 3. - Page 10 Symptoms and Possible Causes: SYMPTOM POSSIBLE CAUSE Unit won’t cool * Blowers/impellers not running * Compressor not running * Compressor runs, but has bad valves * Loss of refrigerant Compressor tries to start but won’t run * Low line voltage at start. Should be +/-10% rated voltage * Compressor motor stuck * Bad relay * Bad overload switch...
- Page 11 Protecting Electronics. Exceeding Expectations. ™ 5736 North Michigan Road Indianapolis, IN 46228 317-257-6811 317-257-1590 fax www.McLeanParts.net...
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