PART NAMES INDOOR UNIT Display Panel OUTDOOR UNIT ■ INDOOR & OUTDOOR UNIT ■ DISPLAY PANEL A. Indoor unit I. Infrared signal receiver B. Outdoor unit J. Emergency button C. Remote controller K. Running indicator D. Air-in L. Timer indicator E.
DC Inverter R-410A MODEL REMARK R-410A 1,245 PREPARATION BEFORE INSTALLATION • Before doing any work, check the interior power supply cord and the main breaker capacity are sufficient and the installation area is sufficient and complies with the requirements. • Check that the power supply available agrees with name plate voltage. •...
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YUKC 18-48 The positioning of ceiling hole and indoor unit and hanging screw bolt: Air outlet Hanging Screw bolt N-Ø200 Main body : A 4-M10 Site configuration Distance between bolts: B J=MxK Ceiling hole: D Panel: E Install the main body: Main body: 800 Connecting point of refrigerant pipe...
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YUKC 60 The positioning of ceiling hole and indoor unit and hanging screw bolt: Air outlet Hanging Screw bolt N-Ø200 Main body : A 4-M10 Site configuration Distance between bolts: B J=MxK Ceiling hole: D Panel: E Install the main body: Main body: 800 Distance between bolts: 565 Fixed screw...
OUTDOOR UNITS CAUTIONS • Keep this unit away from direct radiation of the sun or other heaters. • If unavoidable, please cover it with a shelter. • In places near coast or with a high attitude where the wind is violent, please install the outdoor unit against the wall to ensure normal performance.
MOVING AND INSTALLING • Since the gravity center of this unit is not at its physical center, so please be careful when lifting it with a sling. • Never hold the air-in of the outdoor unit to prevent it from deforming. Do not touch the fan with hands or other objects.
REFRIGERANT PIPING CONNECTIONS ■ Fixing and Piping • Piping must be performed by qualified personnel Low pressure High pressure according to good refrigeration system practices. • Piping materials and insulation materials must be of Manifold refrigerant quality. • Select the pipe diameters according to the size of unit and cut the pipe to design length by using pipe cutter.
FAN SPEEDS For ducted installations, check air flow and static pressure Insufficient air flow can cause operating problems such against values shown in the following diagrams. as icing which may damage the compressor in the outdoor unit. High speed High speed Low speed Low speed 7 0 0...
WIRING DIAGRAMS ■ Wiring Prepare the power source for exclusive with the air conditioner. The supply voltage must comply with the rated voltage of the air conditioner. The plug socket shall be accessible after installation. Remark: All the wiring must be based on the wiring nameplate which is shown on the model. CAUTIONS •...
DEFROSTING OPERATION (Available for heating only) 1. Condition to start defrosting: Units will switch to defrosting b. Unit has been running at high temperature protection mode when either of the following conditions is met. mode* for 90 minutes. (*High temperature protection mode: when coil temperature of indoor a.
OPERATION TIPS The following events may occur during normal operation. 1. Protection of the air conditioner. Compressor protection • The compressor can not restart for 3 minutes after it stops. Anti-cold air (Cooling and heating models only) • The unit is designed not to blow cold air on HEAT mode, when the indoor heat exchanger is in one of the following three situations and the set temperature has not been reached.
TROUBLE SHOOTING GUIDE Problem Probable cause Remedy A. The air conditioner does not 1. Power failure. 1. Wait for power resume. run. 2. Fuse blown or circuit breaker 2. Replace the fuse or reset the open. breaker. 3. Voltage is too low. 3.
Authorized Representative: CM Choi Shipping Manager YORK International (Northern Asia) Ltd. 15/F., Tower II, World Trade Square, 123 Hoi Bun Road, Kwun Tong, Kowloon, Hong Kong Telephone: (852) 2331 9286 Fax: (852) 2331 9840 Technical Service Division: Telephone: (852) 2331 9286 Fax: (852) 2304 0068...