Turbo Air KUCTB2503 Installation & Operation Manual
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Turbo Air KUCTB2503 Installation & Operation Manual

Refrigeration system
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Turbo air Speeds Up the Pace of Innovation
Part No. KUCTB2503
Refrigeration System
Installation & Operation Manual
Please read this manual completely before attempting to install or operate this equipment !
Unit Cooler
Condensing Unit

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Summary of Contents for Turbo Air KUCTB2503

  • Page 1 Turbo air Speeds Up the Pace of Innovation Part No. KUCTB2503 Refrigeration System Installation & Operation Manual Please read this manual completely before attempting to install or operate this equipment ! Unit Cooler Condensing Unit...

  • Page 2: Table Of Contents

    CONTENTS Safety Information …………………………………… 3 Inspection ……………………………………………… Locating Unit Cooler ………………………………… 4 Unit Cooler Piping …………………………………… 6 Expansion Valve Selection ………………………… Defrost ………………………………………………… Locating and Mounting Condensing Unit ……… System Operation …………………………………… Unit Cooler Troubleshooting ……………………… System Troubleshooting …………………………… Field Wiring ……………………………………………...

  • Page 3: Safety Information

    Check carefully for concealed damage. Any shortage or damages should be reported to the delivering carrier. Damaged material becomes the delivering carrier’s responsibility, and should not be returned to Turbo air unless prior approval is given. Check the serial tag information with invoice. Report any discrepancies to Turbo air sales representatives.

  • Page 4: Locating Unit Cooler

    Locating Unit Cooler. Minimum space required for Unit Cooler. Figure 1. One evaporator Figure 2. Two or more evaporators H=Space Required, Unit Cooler Height Recommended location methods of Unit Cooler. 1. Avoid placing Unit Cooler close to doors. Install like Figure 3 or Figure 4. 2.
  • Page 5 stream. When installed, there should cleaning without the use of tools. When lagging 12”clearance from bottom of the unit. Always or bolting unit flush to the ceilings, seal the joint avoid placement of unit coolers directly above between the top and the ceiling with an NSF listed doors and door openings.

  • Page 6: Unit Cooler Piping

    The system as supplied by Turbo air was thoroughly cleaned and dehydrated at the factory. Foreign matter may enter the system by way of the evaporator to condensing unit piping. Therefore, care must be used during installation of the piping to prevent entrance of foreign matter.

  • Page 7: Expansion Valve Selection

    operating cast, and can cause a safely hazard. Eliminate all air leaks. Expansion valve selection. Expansion valve selection for each model (Table 1) Table 1 refer to Sporlan and Alco, other expansion valve be referred to their catalogue. Table 1. Expansion Valve Specs by Model. CAPACITY Evap.
  • Page 8 ADM248 24800 SSE3C ADM321 32100 SSE3C ADM370 37000 SSE4C ADM480 48000 SSE4C ADM567 56700 SSE6C ADM638 63800 SSE6C MED105 10500 SBFSE-A-Z MED144 14400 SBFSE-B-Z MED207 20700 SSE-3-Z MED275 27500 SSE-4-Z MED317 31700 SSE-4-Z MED410 41000 SSE-6-Z MED513 51300 SSE-7-Z MED547 54700 R-404A -20 /-29...
  • Page 9 TCA106 10600 SBFSE-A-C TCA140 14000 SBFSE-B-C TCA178 17800 SBFSE-B-C TCA197 19700 SBFSE-B-C TCA213 21300 SBFSE-C-C TCA284 28400 SBFSE-C-C TCA356 35600 SBFSE-C-C TCE058 5800 SBFSE-A-Z TCE087 8700 SBFSE-A-Z TCE106 10600 SBFSE-A-Z TCE140 14000 SBFSE-B-Z TCE178 17800 R-404A 25 / -4 SBFSE-B-Z TCE197 19700 SBFSE-B-Z...

  • Page 10: Defrost

    3000 4000 6000 1 1/8 1 1/8 9000 1 1/8 1 1/8 1 1/8 1 1/8 12000 1 1/8 1 1/8 1 1/8 1 1/8 1 1/8 1 3/8 1 3/8 15000 1 1/8 1 1/8 1 1/8 1 1/8 1 1/8 1 1/8 1 1/8...
  • Page 11 At this time, fan power is supplied later than preventing over heating. compressor power by fan delay thermostat. If it There are two kinds defrost timers. Turbo air uses does not, a partial defrost results and the residual bimetal method.

  • Page 12: Locating And Mounting Condensing Unit

    Defrost Timer Setting Turbo air uses 8145-20B type timer made by minutes beyond estimated temperature Paragon company. termination time. Air defrost termination time is Timer should be set correctly. Determine the usually 30 to 50 minutes. The colder the room, the number of defrosts per day and the best time of longer the fail-safe time required.

  • Page 13: System Operation

    Mounting Condensing Unit. Mounting base should be concrete or steel pads to avoid vibration or shifting. sufficient to support between 2 to 5 times the The anchor bolts should be used to fix the unit weight of condensing unit. and tightened with spring washer and nuts. Condensing units must be mounted using Spring Mounted Compressor.
  • Page 14 Evaporator Superheat. Evaporator superheat is generated from the suction line temperature at the expansion valve compressor suction line reducing system bulb. Obtain pressure at a Schrader fitting in the efficiency. evaporator suction connection area, near the Normally 6 to 12 is acceptable on most expansion valve bulb, and convert to temperature refrigeration systems.

  • Page 15: Unit Cooler Troubleshooting

    filter/drier in the charging line. This extra drier glass indicates a full charge and the proper will insure that all refrigerant supplied to the amount have been weighed in. If the refrigerant system is clean and dry. Weigh the refrigerant must be added to the system through the suction drum before charging so an accurate record can side of the compressor, charge in vapor form only.
  • Page 16 temperature too Superheat too high Adjust expansion valve. high.) Room thermostat set too high Adjust thermostat Manually defrost coil. Check defrost Coil iced-up time, period, controls. Defective distributor Replace. Defective distributor Replace Uneven coil Defective heater Replace frosting. Adjust defrost termination setting higher Defrost termination set too low and move defrost thermostat.

  • Page 17: System Troubleshooting

    evaporator, on fan Defective defrost thermostat or timer. Replace defective component guard, or blades. Too many defrosts Reduce the number of defrosts System troubleshooting. symptoms Possible causes Solution Main switch open Close switch Check electrical circuits and motor Blown fuse winding for shorts or grounds.

  • Page 18: Field Wiring

    pressure Check bulb location and clamping. Expansion valve overfeeding. Adjust superheat. Lack of refrigerant. Check for leaks. Add charge. Evaporator dirty or iced Clean and defrost. Clogged liquid line filter drier. Replace filter drier. Low suction pressure. Expansion valve malfunctioning. Check and reset for proper superheat.
  • Page 19 Diagram 2. Typical diagram for single evaporator defrost timer only. Diagram 3. Typical diagram for single evaporator with defrost timer and single phase heater...
  • Page 20 contactor. Diagram 4. Typical diagram for single evaporator with defrost timer and 3-phase heater contactor. Diagram 5. Typical diagram for single evaporator defrost timer only (TTE-TYPE).
  • Page 21 4184 EAST CONANT ST LONG BEACH, CA 90808 FAX : 562-429-7154 Toll Free : 888-900-1002 (U.S.A & Canada) http://www.turboairinc.net...

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