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BAC-105-02B

certificate of approval

(ISO9001)

CONSTANT TEMPERATURE & HUMIDITY

OPERATING MANUAL

This is a product we, bumyang, tightly control quality
through all the process from design to assembly with
our experience and state-of-the art technology as a
specialized air-conditioner maker.

BUMYANG

MODELS : UCU 30M, UCU 50M, UCU 80M, UCU 100M, UCU 150J, 200J, 250J, 300J

Before using your air conditioner please read this manual carefully and keep it for future

reference

Summary of Contents for 200J

Page 1: ... control quality through all the process from design to assembly with our experience and state of the art technology as a specialized air conditioner maker BUMYANG MODELS UCU 30M UCU 50M UCU 80M UCU 100M UCU 150J 200J 250J 300J Before using your air conditioner please read this manual carefully and keep it for future reference ...

Page 2: ... 9 Operation precaution 10 Economic operation 12 Repair management 13 Air filter cleaning 13 Evaporation cleaning 14 When the machine is to be used again 15 When the machine is to be finished 15 Trouble shooting 16 Cautions of handling refrigerant 17 quality of supply water 18 How to use controller 19 ...

Page 3: ...symbol indicates the possibility of death or serious injury WARNING This symbol indicates the possibility of injury or demage to properties only CAUTION This symbol indicates the possibility of slight injury or demage to this machine NOTICE This symbol indicates the possibility of use efficiency and escape with injury ...

Page 4: ...ock or fire Fuse is used with specified rating Do not use wire or copper wire It may cause fire Remove and re installed the machine please consult authorized dealer or specialist for the installation work Do not put a stove etc where is exposed to direct air flow It may affect combustion Please consult authorized specialist for the installation work This machine must be grounded It may cause elect...

Page 5: ... the unit and do not put anything on it It may cause on injury and dropping and fall down CAUTION Do not apply an insecticide or flammable spray It may cause a fire or deformation of the unit Check if any obstacle prevent air from flown into indoor outdoor unit It may cause bad operation condition Not Install the harmful to neighborhood because outdoor unit s noise and hot air It may cause neighbo...

Page 6: ...CAUTION Do not clean the machine surface by oil or grease It may cause change of color Power is off after machine operation is stop finally Use the long time ventilate 1 or 2 times in 2 hours ...

Page 7: ...l easily not trouble neighborhood because unit s noise and hot air Secure mini mum service area and where customer wanted 3 Input the power cord Used certified power cord and install the leakage breaker where need to place This machine must be grounded Do not damage or use an unspecified power cord Do not modify power cord length or share the outlet with other appliances 4 Delivery of customer At ...

Page 8: ...t pipe Do not put a stove etc ELECTRIC WIRING Please check service area is securely Check if any obstacle prevent air from flown into unit It may cause bad operation condition 1 The leased circuit of air conditioner should be connected with power source 2 Earth should be connected to avoid electric shock 3 Transportation or rewiring of air conditioner should be done in counsel with expert engineer...

Page 9: ...circulated When cooling tower installed check opened the valve operated fan of cooling tower and cooling water pump Any other water used check opened the valve and circulated cooling water When the machine was stop check closed valve stoped cooling tower fan and cooling water pump Check the humidifier water pipe and supplied water in the machine Install thermostat and humidity adjuster sensor in t...

Page 10: ...Name of parts UCU 30M 50M 80M 100M UCU 150J 200J ...

Page 11: ...ere it will be exposed direct air flow This could injure the pat or plant When fuse is blown out replace it with new one with specified rating If fuse is blown out frequently throughly check the cause If any fuse with no specified rating is used compressor may fail or fire may break out When the power supply is cut off please turn off the machine The machine is not intended for us by young childre...

Page 12: ...SIGNAL It s not fault The signal reset when the water supply in humidify Do not exposed the body cool air for long period of time It will be catch cold or catch a similar symptoms If machine operates without air filter dust collection effect deteriorates and machine is contaminated to cause trouble When use warm water or steam remove water in steam heater before the machine is running If existed w...

Page 13: ...dows are shut tight Avoid opening doors and windows as much as possible to keep the cool air in the room Adjust the vertical horizontal airflow grill direction by hand When vertical airflow grill is upper rising the effect of cooling Ventilate the room occasionally Since windows are kept closed it is a good idea to open them and ventilate the room now and then Do not clean the machine surface by o...

Page 14: ... the suction grill comes forward Put the air filter and electric dust filter while grasping their upper part the air filter and dust collector filter come out When suction grill is remove air filter is seen Check if the connector ring is firmly connected with suction grill if not connect it with suction grill Remove dust from the filter using clean water and leave it until it is dried The assemble...

Page 15: ...o that electric parts are not wetted with water 3 If dust accumulates on the evaporator a long while it is required to use steam to remove dust In this case contact us Removed suction grill carefully Bearing lubrication If bearing runs out of oil friction or noise occurs Lubricate bearing once every 3 or 4 months Remove the rear plate of blower chamber and pour machine oil into the bearing lubrica...

Page 16: ...should be pressed down 10mm or so CAUTION Turn off the circuit breaker surely before checking When the machine is to be finished Turn off the circuit breaker surely For prevent drain pipe clogged remove dust in the drain pipe Condensed water should be fully drained If the drainage is incomplete water may be freezing and drain pipe will cause breakdown Operated the machine on air circulation mode f...

Page 17: ...esumes operation when the room temp is below the set temp Both fan and compressor operate but stop soon cooling water doses not circulated circulate cooling water cooling water is not sufficient added cooling water When used cooling tower 1 fan does not operated 2 fan rotates in a reverse direction 3 air suction or discharge hole is clogged with dust 4 tank strainer is clogged with dust 5 water in...

Page 18: ...nt please consult authorized dealer or specialist for the installation work Leakage refrigerant or not operate the machine worked non specialist Do not replace or supply work by user Shortage refrigerant it caused bed conditions or cooling effect deteriorates by machine ...

Page 19: ... CaCO3 ℓ 70 below Fe Fe ℓ 0 3 below ammonoum ion NH4 ℓ NH4 ℓ 0 2 below ion SiO2 SiO2 ℓ 30 below ion S2 S2 ℓ none 2 Do not control of quality of supply water it may cause not use humidifier for long times 3 When need after service please contact your dealer or service center Don t used quality of supply water it may cause water level sensor trouble and leakage water Please cleaning the cylinder onc...

Page 20: ...How to use controller ...

Page 21: ... parts 21 How to use and operation 23 Control function 27 Temperature function Humidity function Cooling control Heating control Humiditing control Dehumiditing control Fan control Humidifier control Trouble shooting 32 ...

Page 22: ...ondition 5 DOWN switch Setting value decreases 6 UP switch Setting value increases 7 POWER ON OFF switch Connects and disconnects the MICOM power 1 RUN lamp Lights up during operation and goes out when air conditioner stops 2 HEATER 1 2 3 lamp Indicates one of 1 2 and 3 heater being operated 3 COMPRESSOR 1 2 3 4 lamp Indicates one of 1 2 3 and 4 compressor being operated in case of compressor 1 or...

Page 23: ...Main Control Part ...

Page 24: ...TEM READY LOCAL STOP Press a RUN switch to star a system If power interrupts during normal operation and power is reconnected operation automatical starts even if RUN STOP switch is not pressed How to check the operation condition when machine stops 1 Pressing DISPLAY SCAN switch display appears in the following sequence ROOM CONDITION 16 5 37 RH room temperature and humidity SET POINT CPA 24 0 55...

Page 25: ... HEAT 1 ON OFF heater 1 output OUTPUT STATUS E HEAT 2 ON OFF heater 2 output OUTPUT STATUS E HEAT 3 ON OFF heater 3 output OUTPUT STATUS COMPRESS 1 ON OFF compressor 1 output OUTPUT STATUS COMPRESS 2 ON OFF compressor 2 output OUTPUT STATUS COMPRESS 3 ON OFF compressor 3 output OUTPUT STATUS HUMI HEAT 1 ON OFF humidify 1 output OUTPUT STATUS HUMI HEAT 2 ON OFF humidify 2 output OUTPUT STATUS WATER...

Page 26: ... to set the desired operating conditions 1 Press EDIT switch to set the mode When ENTER switch is pressed to set the desired temperature the following is displayed EDIT TEMP CPA 24 UP DOWN setting temperature CPA EDIT HUMI CPA 55 RH UP DOWN setting humidity CPA EDIT TEMP DB 1 0degC UP DOWN setting temperature desensitized belt DB EDIT HUMI DB 5 RH UP DOWN setting humidity desensitized belt DB EDIT...

Page 27: ...s during heating operation OUTPUT CONDITION Cooling HI MIDDLE LOW high middle or low cooling operation OUTPUT CONDITION Humidify HI LOW strong or weak humidifier operation OUTPUT CONDITION Dehumidify HI MIDDLE LOW high middle or low dehumidifier operation OUTPUT CONDITION Heat Humi HI LOW strong or weak heater and humidify operation OUTPUT CONDITION Heat Dehumi HI LOW strong or weak heater and deh...

Page 28: ...ol range 10 40 default 25 CPA 3 desensitized belt DB temperature DB controlled output does not respond to the slight fluctuation in room temperature 0 2 5 0 default 0 5 DB 4 proportional range or step control range PB proportional control range 0 5 10 0 default 1 5 PB 5 step temperature control range 0 5 5 default 1 5 STEP 6 example for the control depending on the temperature setting in case of C...

Page 29: ...ol range 30 RH 80 RH default 55 RH CPA 3 desensitized belt DB humidity DB controlled output does not respond to the slight fluctuation in room humidity 1 RH 10 RH default 1 RH DB 4 proportional range or step control range 2 RH 20 RH default 2 RH PB 5 step humidity control range 2 RH 20 RH default 5 RH STEP 6 example for the control depending on the humidity setting in case of CPA 55 PB 5 DB 2 in c...

Page 30: ...esired temperature 7 step binary control is carried out depending on the temperature difference T desired temperature room temperature 1 DB PB T heater operates in 7 steps heating 7 step 2 DB T PB 7 step control depending on PB 7 step 3 T DB heater stops 4 If machine stops while heater operates fan continues to operate one minute and then stops 5 The capacity ration of electric heater is 1 2 4 and...

Page 31: ...stantly but fan continue to operate a minute and then stop automatically Compressor re operation prevention time control If compressor resumes operation it starts operation in 3 minutes in order to protect compressor and to ensure satisfactory operation Compressor re operation prevention time 3minute Humidifier control 1 Pan type humidifier 1 When power is on Water supply begins before the humidif...

Page 32: ...he current conduction occurs the system drains water automatically and it stops operation 20 second 4 Humidifier gets automatically stoped during the water drain 5 Drain time is automatically during 3 seconds every 20 minutes 6 Drain time is automatically during 1 minutes every 12 hours 7 In case of pressed drain switch on the MAIN PCB the system drains water automatically and it stops operation 2...

Page 33: ...SOR 1 OVER LOAD comp1 overload AHU high low pressure switch over currant relay thermal protector SYSTEM ERROR OUT FAN 2 OVER LOAD outdoor unit fan2 overload AHU over currant relay thermal protector SYSTEM ERROR COMPRESSOR 2 OVER LOAD comp1 overload AHU high low pressure switch over currant relay thermal protector INDOOR FILTER CLOG INDOOR FAN OVER LOAD C D WATER OVER FLOW ROOM SENSOR TROUBLE HUMID...

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