Daikin LX10F11B User Manual

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3.1 Pre-Trip Inspection
Perform a pre-trip inspection of each component and take remedial actions if necessary so that the unit will
operate normally. Pre trip inspection includes items are listed below.
(1) Appearance inspection of unit
① Physical damage
② Casing insulation through penetration
③ Drain hose (dust and clogging)
④ Power cable and plug damage
⑤ Condition of refrigerant piping cramp
⑥ Condition of each sensor installation
⑦ Loose mounting sections
・ Bolts and nuts ----- Casing frame, compressor, fan motor, control box, inverter box
・Cable glands ----- Control box
⑧ Conditions of control box cover packing (water-proof)
⑨ Magnetic contactor contact point
⑩ Condition of Inverter box cover packing (water-proof)
(2) Inspection before unit operation
① Refrigerant leakage inspection
② Power voltage inspection (Automatic PTI range)
(3) Operation inspection of safety
device and control equipment HPS …… Check for proper activation of switch when high pressure
① Safety device is raised by stopping the condenser fan motor.
② Control equipment Solenoid valve …… Inspection of operation (open and close) and leakage
EFM ……Speed switchover and rotating direction
EEV, EMV, DMV …… Inspection of operation (open and close) and leakage
(4) Operation in each mode
① Pull-down → 0℃ Pull-down time, voltage and current
② Chilled control 0℃ Electronic temperature recorder calibration Return, supply air temperature differential, voltage and current
③ Defrosting Defrosting time
④ Pull-down → -18℃ Pull-down time, evaporator fan motor speed switchover
⑤ Frozen control -18℃ Electronic temperature recorder calibration (Temperature difference and rotating direction)
voltage and current
⑥ Dehumidification operation and humidity sensor inspection
Remaining frost inspection
(5) PTI report preparation
●Consumables
①Wake-up battery: 2 years
②Humidity sensor: Inspect every year. Replace when appropriate.
③ Refrigerant: Inspect at PTI. Repair as needed. (malfunction caused by moisture entering etc.)
④Power plug: Inspect during PTI. Repair as needed.
⑤Power cable: Inspect during PTI. Repair as needed.
0301-10LX10F11BEn.indd3-20301-10LX10F11BEn.indd3-2 2014/11/1916:36:322014/11/1916:36:32
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Daikin LX10F11B Specifications

General

Brand	Daikin
Model	LX10F11B
Category	Inverter
Language	English