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Acson international AWH028C Technical Manual

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Technical Manual
HORIZONTAL
WATER COOLED
PACKAGED
AWH028C/CR AWH030C/CR
AWH040C/CR AWH050C/CR
AWH060C/CR AWH065C/CR
AWH070C/CR AWH080C/CR
AWH100C/CR AWH125C/CR
AWH150C/CR AWH180C/CR
AWH200C/CR AWH250C/CR
AWH300C/CR AWH350C/CR

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  • Page 1 Technical Manual HORIZONTAL WATER COOLED PACKAGED AWH028C/CR AWH030C/CR AWH040C/CR AWH050C/CR AWH060C/CR AWH065C/CR AWH070C/CR AWH080C/CR AWH100C/CR AWH125C/CR AWH150C/CR AWH180C/CR AWH200C/CR AWH250C/CR AWH300C/CR AWH350C/CR...

  • Page 2: Table Of Contents

    Literature No.:   TM-AWH(C)-1101A Supersedes: TM-AWH(C)-0901A Contents Part No.:   M08039110011 Nomenclature …………………………………………………………………………………… 2 Features ………………………………………………………………………………………… 3 Specifications …………………………………………………………………………………… 4 Performance Data ……………………………………………………………………………… 14 Electrical Data …………………………………………………………………………………… 31 Dimension ……………………………………………………………………………………… 33 Operating Limits ………………………………………………………………………………… 38 Wiring Diagrams ………………………………………………………………………………… 39 Refrigerant Circuit ……………………………………………………………………………… 55 Maintenance ……………………………………………………………………………………...

  • Page 3: Nomenclature

    Nomenclature WH 030 C -A AA E Export Description Power Supply: A: 220-240V/50Hz F: 380-415V/3N~/50Hz Water Pipe Connection Direction R: right piping as standard L: left piping not available now External Static Pressure 03:30Pa, 05:50Pa, 10:100Pa Heat Pump (omitted if cooling only) Design Series Capacity Water-Source Heat Pump...

  • Page 4: Features

    Features The main features of these series are as follows: 1)  No Outdoor Unit: The evaporator & condenser is assembled in a single compact casing. Thus, it eliminates a  bunch of additional work to install a separate outdoor unit. 2) Compact & Low Height Profile: AWH-C is a packaged unit consisting of compressor, coil, tube in tube heat exchanger, expansion device and forward curved confrigual fan. 3)  Double  Isolation  Panel:  Double  layer  of  innovative  basepan  design  effectively  reduce  the  compressors  vibration.
  • Page 5 General Data MODEL AWH028C AWH028CR AWH030C AWH030CR AWH040C AWH040CR NOMINAL COOLING 8130 8130 8930 8930 12400 11890 CAPACITY NOMINAL HEATING 9740 10380 12620 CAPACITY COOLING 2070 2190 2390 2440 3050 3040 NOMINAL INPUT POWER HEATING 2090 2240 2810 COOLING 10.31 ...
  • Page 6 General Data MODEL AWH050C AWH050CR AWH060C AWH060CR AWH065C AWH065CR NOMINAL COOLING 12640 12640 14980 14980 17700 17150 CAPACITY NOMINAL HEATING 14050 16590 20170 CAPACITY COOLING 3380 3390 4300 4150 4800 5040 NOMINAL INPUT POWER HEATING 3270 4050 4710 COOLING 8.14  8.14 ...
  • Page 7 General Data MODEL AWH070C AWH070CR NOMINAL COOLING 20000 20000 CAPACITY NOMINAL HEATING 22230 CAPACITY COOLING 5350 5650 NOMINAL INPUT POWER HEATING 5330 COOLING 13.63  14.32  NOMINAL RUNNING CURRENT HEATING 13.83  POWER SOURCE V/Ph/Hz 380-415/3/50 AIR FLOW 3350 3350 EXTERNAL STATIC PRESSURE REFRIGERANT TYPE SOUND PRESSURE LEVEL...

  • Page 8: Specifications

    General Data MODEL AWH080C AWH080CR AWH100C AWH100CR AWH125C AWH125CR AWH150C AWH150CR NOMINAL COOLING  26000 25000 30500 30000 36000 35000 40000 40000 CAPACITY NOMINAL HEATING  29000 35000 43000 50000 CAPACITY COOLING 6350 6450 7450 7450 8150 8100 9450 9600 NOMINAL INPUT  POWER HEATING 6650 8050 8800 10100...
  • Page 9 General Data MODEL AWH180C AWH180CR AWH200C AWH200CR AWH250C AWH250CR AWH300C AWH300CR NOMINAL COOLING  50000 50000 61500 62000 72000 71000 79000 80000 CAPACITY NOMINAL HEATING  56500 72500 78500 87000 CAPACITY COOLING 13000 13400 16100 16600 16500 16900 20000 20500 NOMINAL INPUT  POWER HEATING 13400 17900 18500 20500...
  • Page 10 Components Data AWH028C/ AWH030C/ AWH040C/ AWH050C/ AWH060C/ AWH065C/ AWH070C/ MODEL TYPE DOUBLE INLET CENTRIFUGAL QUANTITY MATERIAL Galvanized Steel DRIVE DIRECT DRIVE DIAMETER  SPLIT  TYPE PERMANENT SPLIT CAPACITOR CAPACITOR QUANTITY INDEX OF IPX4 PROTECTION TYPE ROTARY SCROLL QUANTITY MATERIAL COPPER DIAMETER 9.52 THICKNESS 0.35 MATERIAL ALUMINUM THICKNESS 0.11...

  • Page 11: Safety Device

    Components Data AWH080 AWH100 AWH125 AWH150 AWH180 AWH200 AWH250 AWH300 AWH350 MODEL C/CR C/CR C/CR C/CR C/CR C/CR C/CR C/CR C/CR TYPE DOUBLE INLET CENTRIFUGRAL QUANTITY MATERIAL GALVANIZED STEEL DRIVE V-BELT DRIVE TYPE SQUIRREL CAGE INDUCTION QUANTITY INDEX OF IPX4 PROTECHTION TYPE SCROLL QUANTITY MATERIAL COPPER DIAMETER 9.52 THICKNESS...

  • Page 12: Performance Data

    CAP. INPUT CAP. INPUT (ºC) (ºC) 8376 1687 8278 1770 7914 1951 7765 2022 7587 2094 6966 2254 7000 2325 AWH028C 8779 1699 8622 1796 8388 1981 8130 2070 8101 2125 7478 2324 7504 2397 9154 1724 9182 1825 8918...
  • Page 13 Cooling Only – Cool Mode ENTERING ENTERING WATER TEMPERATURE AIR TEMP MODEL TEMP TEMP CAP. INPUT CAP. INPUT CAP. INPUT CAP. INPUT CAP. INPUT CAP. INPUT CAP. INPUT (ºC) (ºC) 17593 6252 17918 5916 18418 5370 19000 5137 18932 5187 20504 5658 20433...
  • Page 14 Heat Pump – Cool Mode ENTERING ENTERING WATER TEMPERATURE AIR TEMP MODEL TEMP TEMP CAP. INPUT CAP. INPUT CAP. INPUT CAP. INPUT CAP. INPUT CAP. INPUT CAP. INPUT (ºC) (ºC) 8376 1785 8278 1873 7914 2064 7765 2140 7587 2215 6966 2384 7000...
  • Page 15 Heat Pump – Cool Mode ENTERING ENTERING WATER TEMPERATURE AIR TEMP MODEL TEMP TEMP CAP. INPUT CAP. INPUT CAP. INPUT CAP. INPUT CAP. INPUT CAP. INPUT CAP. INPUT (ºC) (ºC) 24  17  26455  5255  26146  5520  25000  6080  24526  6302  24442  6087  22558  5657  22642  5483  AWH080CR 27 ...
  • Page 16 Heat Pump – Heat Mode ENTERING WATER TEMPERATURE ENTERING AIR TEMP MODEL DB TEMP CAP. INPUT CAP. INPUT CAP. INPUT CAP. INPUT CAP. INPUT CAP. INPUT (ºC) 8395 1800 8803 1847 9122 1870 9473 1906 9858 1953 10141 1983 AWH028CR 8472 1953 8859...
  • Page 17 Heat Pump – Heat Mode ENTERING ENTERING WATER TEMPERATURE AIR TEMP MODEL DB TEMP (ºC) CAP. INPUT CAP. INPUT CAP. INPUT CAP. INPUT CAP. INPUT CAP. INPUT 16  25000  5725  26213  5871  27159  5954  28208  6068  29350  6214  30193  6307  AWH080CR 20 ...
  • Page 18 Water Flow Rate/Pressure Drop Chart Water Flow Rate/Pressure Drop Chart (AWH028C/CR) 0.50 1.00 1.50 2.00 2.50 3.00 Water Flow(m Water Flow Rate/Pressure Drop Chart (AWH030C/CR) 0.50 1.00 1.50 2.00 2.50 3.00 Water Flow(m...
  • Page 19 Water Flow Rate/Pressure Drop Chart (AWH040C/CR) 1.00 2.00 3.00 4.00 Water Flow(m Water Flow Rate/Pressure Drop Chart (AWH050C/CR) 1.00 2.00 3.00 4.00 5.00 Water Flow(m...
  • Page 20 Water Flow Rate/Pressure Drop Chart (AWH060C/CR) 1.00 2.00 3.00 4.00 5.00 Water Flow(m Water Flow Rate/Pressure Drop Chart (AWH065C/CR) 1.00 2.00 3.00 4.00 5.00 6.00 Water Flow(m...
  • Page 21 Water Flow Rate/Pressure Drop Chart (AWH070C/CR) 2.00 4.00 6.00 8.00 Water Flow(m Water Flow Rate/Pressure Drop Chart (AWH080C/CR) 2.65 13.3 19.9 26.5 33.1 Water Flow m...
  • Page 22 Water Flow Rate/Pressure Drop Chart (AWH100C/CR) 2.72 6.79 10.9 16.3 21.7 Water Flow m Water Flow Rate/Pressure Drop Chart (AWH125C/CR) 3.99 6.79 13.3 19.9 26.5 Water Flow m...
  • Page 23 Water Flow Rate/Pressure Drop Chart (AWH150C/CR) 3.86 11.6 15.5 19.3 Water Flow m Water Flow Rate/Pressure Drop Chart (AWH180C/CR) 4.89 14.7 19.6 24.4 Water Flow m...
  • Page 24 Water Flow Rate/Pressure Drop Chart (AWH200C/CR) 5.06 13.4 15.2 26.5 33.1 39.8 Water Flow m Water Flow Rate/Pressure Drop Chart (AWH250C/CR) 9.06 15.4 18.1 22.6 27.2 Water Flow m...
  • Page 25 Water Flow Rate/Pressure Drop Chart (AWH300C/CR) 9.33 16.8 18.7 22.4 26.1 Water Flow m Water Flow Rate/Pressure Drop Chart (AWH350C/CR) 21.1 28.1 37.5 46.9 Water Flow m...

  • Page 26: Electrical Data

    Electrical Data MODEL 028C/CR 030C/CR 040C/CR 050C/CR 060C/CR 065C/CR 070C/CR INSULATION GRADE POWER SOURCE V/Ph/Hz 220-240/1/50 MOTOR RATED INPUT POWER RATED RUNNING CURRENT POWER SOURCE V/Ph/Hz 220-240/1/50 380-415/3/50 RATED INPUT POWER 1080 1310 1700 3800 4660 5300 6000 COMPRESSOR RATED RUNNING CURRENT LOCKED ROTOR AMP.

  • Page 27: Dimension

    Dimension MODEL: AWH028-070C/CR...
  • Page 28 MODEL: AWH080-100C/CR WIRE INLET 1090 1283 CONDENSING DRAIN Φ34 INSTALL HOLE Φ15 1150 1060 1019 1718 1829 1067 WATER OUTLET R1-1/4 346(438) WATER INLET R1-1/4 NOTE: Data in the bracket is for the model AWH100C(R). Unit: mm MODEL: AWH125-150C/CR WIRE INLET 1333 1571 CONDENSING DRAIN Φ34...
  • Page 29 Dimension Unit: mm Model Length Width Height Return Air Inlet 028C/CR 1242 1162 030C/CR 040C/CR 1300 1222 050C/CR 1300 1254 060C/CR 065C/CR 1300 1254 070C/CR Drain Water Install Model Pipe Pipe Hole Discharge Air Outlet 008C/CR Φ19 R3/4 Φ17 010C/CR 013C/CR Φ19 R3/4...
  • Page 30 MODEL: AWH180-350C/CR Horizontal Discharge Unit: mm 4- Φ INSTALL HOLE WATER OUTLET CONDENSING DRAIN WATER INLET Drain Water Install Model Pipe Pipe Hole Length Height Width AWH180C(R) 1745 1695 1583 1072 1175 1207 1128 Rc1-1/2 Φ 20 AWH200C(R) 1745 1695 1583 1072 1175 1207 1128 Rc1-1/2 Φ...
  • Page 31 MODEL: AWH180-350C/CR Top Discharge Unit: mm 4-Φ INSTALL HOLE WATER OUTLET WATER INLET CONDENSING DRAIN Drain Water Install Model Pipe Pipe Hole Length Height Width AWH180C(R) 1745 1695 1583 1072 1210 1170 1128 Rc1-1/2 Φ 20 AWH200C(R) 1745 1695 1583 1072 1210 1170 1128 Rc1-1/2 Φ...

  • Page 32: Operating Limits

    Operating Limits Air Limits °C C Cooling Heating Min. Ambient Air, DB/WB 16/- 16/- Normal Ambient Air, DB/WB 27/19 20/15 Max. Ambient Air, DB/WB  35/- 30/- Water Limits °C C Cooling Heating Min. Entering Water  Normal Entering Water Max. Entering Water  NOTES: AT STANDARD FLOW RATE. Environment This equipment is designed for indoor installation only. Sheltered locations such as attics, garages, etc., generally  should provide sufficient protection against extremes in temperature or humidity, or equipment performance, reliability and service life span may be affected.

  • Page 33: Wiring Diagrams

    Wiring Diagrams MODEL: AWH028/030C...
  • Page 34 MODEL: AWH028/030CR...
  • Page 35 MODEL: AWH040C...
  • Page 36 MODEL: AWH040CR...
  • Page 37 MODEL: AWH050/060/065/070C...
  • Page 38 MODEL: AWH050/060/065/070CR...
  • Page 39 MODEL: AWH080/100/125/150C...
  • Page 40 MODEL: AWH080/100/125/150CR...
  • Page 41 MODEL: AWH180/200/250/300C...
  • Page 42 MODEL: AWH180/200/250/300CR...
  • Page 43 MODEL: AWH350C COOLING ONLY COOLING ONLY + AUXILIARY HEATER...
  • Page 44 MODEL: AWH350CR HEAT PUMP + AUXILIARY HEATER...

  • Page 45: Refrigerant Circuit

    Refrigerant Circuit MODEL: AWH050/060/065/070C MODEL: AWH028/030/040/080/100/125/150C...
  • Page 46 MODEL: AWH050/060/065/070CR MODEL: AWH028/030/040/080/100/125/150CR...
  • Page 47 MODEL: AWH180/200/250/300C WATER OUTLET CHECK CHECK CHECK CHECK JOINT JOINT JOINT JOINT CHECK CHECK CHECK CHECK MOTOR JOINT JOINT JOINT JOINT COIL WATER COMPRESSOR 3 COMPRESSOR 4 COMPRESSOR 1 COMPRESSOR 2 INLET COOLING CAP. TUBE STRAINER COOLING CAP. TUBE STRAINER COOLING CAP.
  • Page 48 MODEL: AWH350C WATER OUTLET CHECK CHECK CHECK CHECK JOINT JOINT JOINT JOINT CHECK CHECK CHECK CHECK CHECK MOTOR JOINT JOINT JOINT JOINT JOINT COIL COMPRESSOR 1 WATER COMPRESSOR 2 COMPRESSOR 3 COMPRESSOR 4 COMPRESSOR 5 INLET COOLING CAP. TUBE STRAINER COOLING CAP.

  • Page 49: Maintenance

    Maintenance 1. Normal maintenance on all conditioners is generally limited to filter changes. Lubrication of the fan motor is not required. 2.  Filter changes are required at regular intervals. The time period between changes will depend upon the project  requirements.  Some  applications  such  as  motels  produce  a  lot  of  lint  from  carpeting  and  linen  changes.  It  is  suggested that the filter be checked at 60-day intervals for the first year until experience is acquired.

  • Page 50: Troubleshooting

    Troubleshooting Should a major problem develop, refer to the following information for possible cause and corrective steps： Neither fan nor compressor runs (No power supply) 1.  The fuse may be blown or the circuit Breaker is open. Check electrical circuits and motor windings for shorts or  grounds. Investigate for possible overloading. Replace fuse or reset circuit Breakers after fault is corrected.  2.  Wires may be loose or broken. Tighten or replace.  3.  Supply voltage may be too low. Check it with the power company. 4.  Control system may be faulty. Check thermostat for correct wiring and check 24 volt transformer for burnout. Fan runs but compressor does not run 1.  Check compressor capacitor. 2.  Wires may be loose or broken. Tighten or replace. 3.  The high pressure switch may have tripped due to: a)  Fouled or plugged condenser; b)  Lack of or no condenser water; c)  Too warm condenser water; d) Not enough airflow over the coil due to dirty filters; 5. ...
  • Page 51 Insufficient water flow through condenser (tube in tube) 1.  Check whether valves are opened. 2.  Check for air is trapped in piping. 3.  Check circulating pumps. 4.  Check if correct water pump sizing. Water dripping 1.  Check condensate drain. 2. Check for dirty filter. 3.  Check to see if condensate drain runs uphill. 4.  See if blower motor is up to speed. 5.  Check for blower position. 6.  Are drain pipe properly trapped? Noisy unit operation 1.  Check for fan wheel whether it is hitting the housing. 2.  Check if any dented fan wheel.  3. ...

  • Page 52: Installation

    Installation Pipe installation - U trap required The condensate disposal piping must have a trap and the piping must be pitched away from the unit not less than 1/4"  inch per foot (20mm per meter).A piece of single hose from the trap to the drain line is used for simple removal.  Optional Cleanout 1/4" Per Foot (21mm Per Meter) Flexible hose - recommended 1.  Since hose may change in length from +2% to –4%  2.  Absorb unit vibration Valve Switch Thermometer Water pressure gauge Return water pipe Water supply pipe Flexible Pipe Two-way valve Strainer...
  • Page 53 Flexible duct Flexible duct is recommended to be installed in between the unit air discharge and rigid ducting work. This would  prevent accessive vibration to transmit ducting work or even water piping work. Spring isolator - required It is recommended the unit be mounted with spring mounting kit supplied as an optional item.  Spring isolator kit is offered as an optional from factory Tilt angle Factory recommends to tilt the unit by 1˚ as shown above in order to have better drain water flow. Caution: By tilting the unit, duct connection alignment might be affected, thus, use of flexible duct is highly recommended.

  • Page 54: Duct & Attenuation

    Duct & Attenuation 1.  Discharge ductwork is normally used with these conditioners. Return air ductwork may also be required, but will  require field installation of a 1" or 2" return air duct collar/ filter rack kit. 2.  Return air duct should be internally lined with acoustic insulation for sound attenuation. 3.  Don't use sheet metal screws directly into the unit cabinet for connection of supply or return air ductwork, especially  on return air ductwork which can damage the drain pan or the coil & tube. Piping Work 1. All units are recommended to be connected to supply and return piping in a two-pipe reverse return configuration. A reverse return system is inherently self-balancing and requires only trim balancing where multiple quantities of ...

  • Page 55: System Cleaning & Flushing

    System Cleaning & Flushing 1. Prior to first operation of any conditioner, the water circulating system must be cleaned and flushed of all construction dirt and debris. A The piping can be steel, copper or PVC. 2.  If the conditioners are equipped with water shut off valves, either electric or pressure operated, the supply and  return runouts must be connected together at each conditioner location. This will prevent the introduction of dirt  into the unit. Additionally, pressure operated valves only open when the compressor is operation. 3. The system should be filled at the city water makeup connection with all air vents open. After filling, vents should be closed.

  • Page 56: Start-Up

    Start-up 1.  Open all valves to full open position and turn on power to the conditioners. 2.  Set thermostat for "Fan Only" operation,  check for proper air delivery and fan speed. Each unit has 3 speed. 3.  Set thermostat to "Cool". Many conditioners have time delays which protect the compressor against short cycling.  After a few minutes of operation, check the discharge grilles for cool air delivery.   4.  Measure the temperature difference between entering and leaving water. It should be approximately 5℃ to 6℃. 5.  If the temperature different is out of range, adjust the combination shutoff/balancing valve in the return line to a  water flow rate which will result 5℃ to 6℃ difference. 6.  Set thermostat to "Heat "(used in the heat pump model). Set system switch to the "Auto " position and depress the  heat setting to the warmest selection. Some conditioners have built-in time delays which prevent the compressor  from immediately starting. the fan will start once coil temperature reach 40℃.  7.  Measure the temperature difference between entering and leaving water. It should be approximately 4℃ to 5℃  (based on cooling mode water flow rate). 8. Check the elevation and cleanliness of the condensate line. If the air is too dry for sufficient dehumidification, slowly pour enough water into the condensate pan to ensure proper drainage.

  • Page 57: Controller Error Code

    Controller Error Code Error code Causes Compressor2 low pressure faulty Compressor2 high pressure faulty Compressor2 overload Indoor coil2 temperature sensor fault System 2 leaving water temperature2 faulty Indoor coil1 temperature sensor fault Return air temperature sensor fault Communication faulty Compressor1 refrigerant leak Compressor2 refrigerant leak Compressor1 overload Compressor1 high pressure faulty Compressor1 low pressure faulty Temperature of water entering too high or low Water flow switch faulty System 1 leaving water temperature1 faulty...
  • Page 58 ACSON MALAYSIA SALES & SERVICE SDN.BHD. (129688-D) DAIKIN a member of group Lot 4, Lorong 19/1A, Seksyen 19, 46300 Petaling Jaya, Authorized Dealer : Selangor Darul Ehsan, MALAYSIA. Tel : +603 7964 8200 Sales Fax : +603 7956 9909 Service Fax : +603 7956 9907 Acson Careline : 1300 22 3344 Penang : +604-5377 176 Pahang : +609 5178 696...

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