Sakura COOLING ONLY Installation, Operation & Maintenance Manual
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Sakura COOLING ONLY Installation, Operation & Maintenance Manual

Rooftop package air conditioner
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ROOFTOP
PACKAGE AIR CONDITIONER
Installation/Operation/Maintenance Manual
SPRT UNIT MODEL : COOLING ONLY
This manual provides the procedures of installation to ensure a safe and good standard of
operation for the air conditioner unit.
Special adjustment may be necessary to suit local requirements.
Before using your air conditioner, please read this instruction manual carefully and keep it for
future reference.

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Summary of Contents for Sakura COOLING ONLY

  • Page 1 ROOFTOP PACKAGE AIR CONDITIONER Installation/Operation/Maintenance Manual SPRT UNIT MODEL : COOLING ONLY This manual provides the procedures of installation to ensure a safe and good standard of operation for the air conditioner unit. Special adjustment may be necessary to suit local requirements.

  • Page 2: Safety Precautions

    This unit is factory full charged. Overcharge will cause over-current or damage to the compressor. Ensure that the unit panel is closed after service or installation. Unsecured panels will cause the unit to operate noisily. SAKURA - Total Air Conditioning Solution...

  • Page 3: General Data

    GENERAL DATA 100 / 105 SAKURA SAKURA - Total Air Conditioning Solution...
  • Page 4 OUTLINE AND DIMENSIONAL DATA     SPRT 100 / 105 SAKURA - Total Air Conditioning Solution...

  • Page 5: Installation Of The Unit

    If the condensing unit is operated in an atmosphere containing oils (including machine oils), salt (coastal area), sulfide gas (near hot spring, oil refinery plant), such substances may lead to failure of the unit. Installation Clearance SAKURA - Total Air Conditioning Solution...

  • Page 6: Unit Support

    To prevent condensate formation and leakage, provide the drain pipe with insulation to safeguard against sweating Upon completion of the piping work, check that there is no leakage and that the water drains off properly SAKURA - Total Air Conditioning Solution...

  • Page 7: Refrigerant Piping

    1. Purge air from the refrigerant charging cylinder connection line. 2. charge liquid refrigerant as required into the refrigerant cycle by weighing the refrigerant charging cylinder. 3. After all evacuation and charging work, tighten the cap nuts for the unit stops valves. SAKURA - Total Air Conditioning Solution...

  • Page 8: Safety And Control Device Setting

    Provide in control functions by delaying the compressor restarting period Other Protection Over current Relay for Evaporator Fan Motor This manual reset type thermal over current relay for the evaporator fan motor interlocks system operation. Safety and Control Device Setting 100 / 105 SAKURA - Total Air Conditioning Solution...
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  • Page 10: Control Function

    Control Function SAKURA - Total Air Conditioning Solution...
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  • Page 19: Wire Connection

    The entire wiring diagram of unit. Wiring connection to unit Remove the panel and connect the units power supply wires to terminal block, as shown below. Notes: For all electrical wiring must be comply with local electrical authority regulations. SAKURA - Total Air Conditioning Solution...

  • Page 20: Electrical Wiring Diagram

    Electrical Wiring Diagram SPRT100 / 105 : 1 STAGE COOLING ONLY SAKURA - Total Air Conditioning Solution...

  • Page 21: Maintenance

    Small Pulley Diameter Newton (N) Kilogram force (Kgf) (mm) 112 – 224 45 – 65 4.6 – 6.6 236 - 315 65 - 85 6.6 – 8.7 125 - 200 20 - 30 2.0 – 3.1 SAKURA - Total Air Conditioning Solution...

  • Page 22: Troubleshooting

    Air in system Purge. Condenser fan not operating Reset condenser fan overload. Check motor and wiring, Repair or replace if defective. Unit operates long or Low refrigerant charge Add refrigerant. continuously Symptoms Probable Causes Remedy SAKURA - Total Air Conditioning Solution...
  • Page 23 • The manufacturer reserves the right to revise any of the specification and design contain herein at any time without prior notification. SAKURA CORPORATION Tel: +81-45-949-8550 Fax: +81-45-949-8551 2-17-1, Eda-minami, Tsuzuki-ku, Yokohama, Kanagawa,224-0007, Japan E-mail: mail@sakura-aircon.com Web: www.sakura-aircon.com SAKURA - Total Air Conditioning Solution...

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