EBAC MODEL BD80 - AchooAllergy.com
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1. 4 Check wiring diagram to find 4 Loose electrical wiring fault and repair 5 Fuse blown or circuit breaker ripped 5 Replace the fuse or reset the circuit breaker 1 Insufficient air movement 1 Check all of the above little or tio water extraction 2 Compressor fault 2 Contact the Factory Service Center 3 Loss of refrigerant gas 3 Contact the Factory Service Center 4 Blocked filter dryer 4 Contact the Factory Service Center 1 Tighten the nuts on the compressor DE 1 Loose compressor Unit vibrates excessively mounts 2 Damaged fan 2 Replace fan Water flooding inside the 1 Drain pipe blocked frozen Machine pipe ONE 2 No section of the drainage pipe CD425 OWNERS MANUAL MEbacLtd COMMERCIAL DIVISION CD425 SPARE PARTS LIST DESCRIPTION PART NUMBER QUANTITY Compressor 3022176 1 Condenser Coil 3020725 1 Evaporator Coil 3020733 3 Defrost valve 3020803 1 Reversible Filter Dryer 3020930 1 Capillary Tube 3014251 12 X 1400mm X 0 047 R22 Freon Refrigerant 3100451 2 5kg Drain Tube 2014315 3 meters 3 8 Copper Tube 3014203 2 meters 1 2 Copper Tube 3014204 2 meters 5 8 Copper Tube 3014205 2 meters Cork Tape 3100223 1 2 Roll Fan Motor 3030140 1 Axial Fan 3010119 1 Solenoid Coil 3030402 1 Humidistat 1132200 1 Momentary Switch 3030634 1 Indicator Lamp Holder 3034513 2 12V2. 100ma Lamp 3034522 4 Humidistat Control Knob 2017707 1 Contactor 037H0021 3030355 1 Contactor 037H0041 3030362 1 Relay 3030270 1 Overload 3032646 1 Transformer 3031129 1 Delay Timer 1602400 1 Defrost Timer 1601200 1 CD425 OWNERS MANUAL
3. Check dehumidification process a Remove the front cover b Check the actual relative humidity inside the area c Set humidity control to a LOWER value than the actual relative humidity d After approximately 6 minutes check the compressor is running e Leave the machine to run for 15 minutes NOTE ensure that the set humidity see c above is set very low as the compressor will switch off when the actual RH coincides with the set point f Observe the evaporator coils i Ifthe air temperature is below 20 C an even coating of ice should cover the entire evaporator coil ii Ifthe temperature is above 20 C droplets of condensed water should cover the entire evaporator coil 4 Leave the unit to run for a further 27 minutes after which the unit should go through a 4 minute defrost cycle During the defrost cycle the defrost solenoid valve is energized and a warming of the evaporator coil can be felt If after carrying out the above checks the unit does not appear to function correctly refer to the repairs section or your supplier CD425 OWNERS MANUAL MEbacLtd COMMERCIAL DIVISION SYSTEM INSALLATION POSITIONING Position the CD425 in the area leaving enough room either end of the unit to allow for easy servicing Using a spirit level ensure the level in both direction Failure to do so may result in the drain tray overflowing and flooding of the chamber WIRING Connect a suitably fused 3 phase mains power supply to the MAINS T B ter
4. of the refrigerant compressor The charging stub should be crimped and rebrazed after servicing NEVER allow permanent service valves to be fitted to any part of the circuit Service valves may leak causing further loss of refrigerant gas 3 The refrigerant compressor fitted to the dehumidifier is a durable unit that should give many years of service Compressor failure can result from the machine losing its refrigerant gas The compressor can be replaced by a competent refrigeration technician Failure of the compressor can be confirmed by the following procedure a Establish that power is present at the compressor terminals using a voltmeter b With the power disconnected check the continuity of the internal winding by using meter across the compressor terminals An open circuit indicates that the compressor should be replaced c Check that the compressor is not grounded by establishing that a circuit does not exist between the compressor terminals and the shell of the compressor CD425 OWNERS MANUAL TPC252 Issue 1 Date 13 10 03 Drawing No MEbacLtd COMMERCIAL DIVISION TROUBLESHOOTING SYMPTOM CAUSE REMEDY Unit inoperative 1 No power to unit 1 Check the power from the power supply panel 1 Loose fan on shaft 2 Replace the fan motor 2 Fan motor burnt out 5 5 Dirty refrigeration coils 3 See Routine Maintenance Section Little or no airflow ty
5. MEbacLtd COMMERCIAL DIVISION EBAC MODEL CD425 1018110 INDUSTRIAL DEHUMIDIFIER OWNER S MANUAL Sales 800 934 9194 CD425 OWNERS MANUAL MEbacLtd COMMERCIAL DIVISION UNPACKING Carefully remove the CD425 dehumidifier unit from its packing and visually check for signs of transit damage If there is evidence of damage DO NOT attempt to operate the unit call your supplier for advice Do not discard the packing as it will be useful when transporting the dehumidifier unit in the future INTRODUCTION The Ebac CD425 dehumidifier removes moisture from the air that circulates through it The resulting reduction in relative humidity protects buildings and their contents from the adverse effects of excess humidity The CD425 Dehumidifier comprises of a A compressor b Refrigerant evaporator coils c Refrigerant condenser coils d Circulation fan e A drain tray for collecting and disposing of condensed moisture f A cabinet to house the above components The fan draws the moist air through the evaporator coils which cools the air below its dew point Moisture forms on the evaporator and is collected in the condensate tray which leads away to a permanent drain The cooled air then passes through the hot condenser where it is reheated using the same energy removed during the cooling phase and the additional heat generated by the compressor The air is therefore discharged from the dehumidifier at a slightly higher te
6. minal block inside the electrical box located at the control panel end of the machine DRAINAGE Connect the outlet from the drain tray located behind the front grille and under the evaporator coils to a permanent drain Please ensure that the drainage does not rise above the level of the CD425 s drain tray Failure to observe this requirement will result in internal flooding of the dehumidifier CD425 OWNERS MANUAL MEbacLtd COMMERCIAL DIVISION ROUTINE MAINTENANCE WARNING ENSURE THAT THE POWER CORD TO THE MACHINE HAS BEEN DISCONNECTED BEFORE CARRYING OUT ROUTINE MAINTENANCE ON ITEMS 1 2 4 5 AND 6 To ensure continued full efficiency of the dehumidifier maintenance procedures should be performed as follows 1 Clean the surface of the evaporator and condenser coils by blowing the dirt out from behind the fins with compressed air Hold the nozzle of the air hose away from the coil approx 6 to avoid damaging the fins Alternatively vacuum clean the coils WARNING DO NOT STEAM CLEAN REFRIGERATION COILS 2 Check that the fan is firmly secured to the motor shaft and that the fan rotates freely The fan motor is sealed for life and therefore does not need oiling 3 To check the refrigerant charge run the unit for 15 minutes and briefly remove the cover The evaporator coil should be evenly frost coated across its surface At temperatures above 25 C the coil may be covered with droplets of water rather than fros
7. mperature but a lower relative humidity than that at which it entered Continuous circulation of air through the dehumidifier gradually reduces the relative humidity within the area being dehumidified Where large amounts of moisture are required to be removed from the area more than one dehumidifier may be required please contact your local distributor for advice CD425 OWNERS MANUAL lEbacLtd COMMERCIAL DIVISION SPECIFICATIONS MODEL CD425 HEIGHT 1190 mm WIDTH 1100 mm DEPTH 460 mm WEIGHT 160 kg AIRFLOW KE 3000M Hr TOTAL POWER 6 0Kw MAX POWER SUPPLY 220V 3PH 60hz REFRIGERANT R22 CHARGE 2 5Kg CD425 OWNERS MANUAL MEbacLtd COMMERCIAL DIVISION OPERATION The CD425 is a self contained low temperature dehumidifier All electrical contactors overloads etc are housed in an electrical box built inside the unit The unit is equipped with a defrost valve which energized every 42 minutes to clear any ice formation on the evaporator coils This allows the unit to operate at much lower temperatures the control panel gives indication of the set humidity drying and defrost status TEST FOR CORRECT OPERATION The following procedure should be followed to test the unit for correct operation 1 After unpacking connect the unit to a 220V 3PH 60hz 3 wire power supply 2 Switch fan ON and check for correct fan rotation Air blows out of the top of the machine 3
8. t Partial frosting accompanied by frosting of the thin capillary tubes indicates loss of refrigerant gas or low charge 4 Check all wiring connections 5 To check the operation of the defrost system switch the machine on and leave it running for approximately 45 minutes The machine will then enter Hot Gas defrost mode for approximately 4 minutes before returning to normal operation If the unit will not defrost the printed circuit timer board may be defective or the by pass valve may be inoperable IF ANY OF THE PRECEDING PROBLEMS OCCUR CONTACT THE EBAC SERVICE CENTER PRIOR TO CONTINUED OPERATION OF THE UNIT TO PREVENT PERMANENT DAMAGE CD425 OWNERS MANUAL MEbacLtd COMMERCIAL DIVISION REPAIRS 1 Should an electrical component fail consult the Factory Service Center to obtain the proper replacement part 2 Ifrefrigerant gas is lost from the machine it will be necessary to use a refrigeration technician to correct the fault Contact the Factory Service Center prior to initiating this action Any competent refrigeration technician will be able to service the equipment The following procedure must be used a The source of the leak must be determined and corrected b The machine should be thoroughly evacuated before recharging c The unit must be recharged with refrigerant measured accurately by weight d For evacuation and recharging of the machine use the crimped and brazed charging stub attached to the side
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