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McQuay MVF 030 AR Manual
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McQuay MVF 030 AR Manual

McQuay MVF 030 AR Manual

Vertical fan coil unit
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MVF - 2005
Vertical Fan Coil Unit
Models: MVF 030 AR
MVF 040 AR
MVF 050 AR

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Summary of Contents for McQuay MVF 030 AR

  • Page 1 MVF - 2005 Vertical Fan Coil Unit Models: MVF 030 AR MVF 040 AR MVF 050 AR...

  • Page 2: Table Of Contents

    "McQuay" is a registered trademark of McQuay International. All rights reserved throughout the world. c 2005 McQuay International "Bulletin illustrations cover the general appearance of McQuay International products at the time of publication and we reserve the right to make changes in design and construction at any time without notice."...

  • Page 3: Noise Level

    F F F F F ea ea tur tur es Small Footprints With the physical footprint of 650mm x 600mm, this all-in-one unit construction is very compact, thus occupying only a small footprint and ideal for closet or inside wall installation. Furthermore, with only the supply and return air grille exposed, the unit is ideally for small offices, hotel rooms, hospitals and restaurant applications.
  • Page 4 Type of Connection F : Flare Electrical A : 220-240V/1Ph/50Hz Model Type R : heatpump Omitted if Cooling Series A : A series Capacity 030 : 26,800 Btu/h Model Name VF : Vertical fan coil unit Brand M : McQuay...
  • Page 5 Product Line-up MVF Product LIne-up Classification 030AR AFAA 040AR AFAA 050AR AFAA...
  • Page 6 Specif Specif ica Specif ica tions tions tions tions Specif Specif tions General Data - Heatpump INDOOR UNIT MVF 030AR MVF 040AR MODEL OUTDOOR UNIT MLC 030CR MLC 040CR 26800 40500 Btu/h NOMINAL COOLING CAPACITY 7854 11869 Btu/h 28000 40000 NOMINAL HEATING CAPACITY 8206 11723...
  • Page 7 General Data - Heatpump INDOOR UNIT MVF 050AR MODEL OUTDOOR UNIT MLC 050CR 47300 Btu/h NOMINAL COOLING CAPACITY 13862 49600 Btu/h NOMINAL HEATING CAPACITY 14536 NOMINAL TOTAL INPUT POWER (COOLING) 4790 NOMINAL TOTAL INPUT POWER (HEATING) 4340 NOMINAL RUNNING CURRENT (COOLING) NOMINAL RUNNING CURRENT (HEATING) POWER SOURCE 400 / 3 / 50...
  • Page 8 Electrical Data - Heatpump INDOOR UNIT MVF 030AR MVF 040AR MODEL OUTDOOR UNIT MLC 030CR MLC 040CR STARTING TYPE INSULATION GRADE POWER SOURCE V/Ph/Hz 230 / 1 / 50 230 / 1 / 50 INDOOR MOTOR RATED INPUT POWER RATED RUNNING CURRENT 1.48 3.41 MOTOR OUTPUT...
  • Page 9 Components Data INDOOR UNIT MVF 030AR MVF 040AR MODEL OUTDOOR UNIT MLC 030CR MLC 040CR TYPE BLOWER WHEEL Q'TY HOT-GALVANIZING STEEL MATERIAL INDOOR FAN DRIVE FORWARD CURVE DIAMETER 27 / 10.6 mm/in LENGTH 20 / 8 mm/in TYPE INDUCTION INDOOR FAN Q'TY MOTOR INDEX OF PROTECTION (IP)
  • Page 10 Components Data INDOOR UNIT MVF 050AR MODEL OUTDOOR UNIT MLC 050CR TYPE BLOWER WHEEL Q'TY MATERIAL HOT-GALVANIZING STEEL INDOOR FAN DRIVE FORWARD CURVE 27 / 10.6 DIAMETER mm/in LENGTH 20 / 8 mm/in TYPE INDUCTION INDOOR FAN Q'TY MOTOR INDEX OF PROTECTION (IP) TYPE PROPELLER Q'TY...
  • Page 11 Safety Devices INDOOR UNIT MVF 030AR MVF 040AR MODEL OUTDOOR UNIT MLC 030CR MLC 040CR TYPE HIGH PRESSURE SWITCH 426 PSI SETTING TYPE SAFETY DEVICE LOW PRESSURE SWITCH 18 PSI SETTING PHASE SEQUENCER 125°C DISCHARGE THERMOSTAT SETTING INDOOR UNIT MVF 050AR MODEL OUTDOOR UNIT MLC 050CR...
  • Page 12 Noise Le Noise Le v v v v v el el el el el Noise Le Noise Le Noise Le Ext. Static 1/1 Octave Sound pressure level (dB, ref 20µPa) Overall Noise Model Speed (mmAq) 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz (dBA)
  • Page 13 MVF 030AR NC CURVES Super high NC-50 NC-45 High NC-40 Medium NC-35 NC-30 NC-25 NC-20 1000 2000 4000 8000 Octave-band frequency (Hz) Measured in anechoic room at 1.5m in front and 1m below the unit MVF 040/050AR NC CURVES NC-55 Super high NC-50 High...

  • Page 14: Operating Range

    Oper Oper a a a a a ting R Oper ting R ting R ang ting R ang e e e e e Oper Oper ting R Ensure the operating temperature is in allowable range. Heatpump Heating Cooling High ambient unit Standard point...
  • Page 15 R R R R R efrig efrig efrig efrig er er ant Cir ant Cir ant Cir ant Cir cuit Dia cuit Dia cuit Dia cuit Dia g g g g g r r r r r ams efrig ant Cir cuit Dia Model : MVF 030 / 040 / 050/ AR...

  • Page 16: Performance Table

    P P P P P erf mance mance mance T T T T T a a a a a b b b b b le le le le le erf or or mance mance Interpolation and Extrapolation method can be used to get the total capacity, TC and sensible capacity, SC at those temperatures which are not stated out in the table.
  • Page 17 Details: Step: To obtain the Total capacity and Sensible capacity for (a) Indoor Condition: 24°C DB, 15°C WB Outdoor Condition: 35°C DB Total capacity, TC ⇒ x = 7.657kW (Same as Total capacity at 20°C Indoor DB / 15°C Indoor WB & 35°C Outdoor DB)* Sensible capacity, SC Extrapolation Method: ⇒...
  • Page 18 Details: Step: To obtain the Total capacity and Sensible capacity for (a) Indoor Condition: 24°C DB, 15°C WB Outdoor Condition: 35°C DB Outdoor DB ° C Indoor DB Indoor WB ° C ° C TC (kW) SC (kW) 7.739 5.564 7.822 5.213 Total capacity, TC...
  • Page 19 Step: To obtain the Total capacity and Sensible capacity for (a) Indoor Condition: 23°C DB, 15°C WB Outdoor Condition: 35°C DB Outdoor DB ° C Indoor DB Indoor WB ° C ° C TC (kW) SC (kW) 7.657 4.039 7.657 5.915 Total capacity, TC ⇒...
  • Page 20 Step: To obtain the Total capacity and Sensible capacity for (a) Indoor Condition: 23°C DB, 15°C WB Outdoor Condition: 37°C DB Outdoor DB ° C Indoor DB Indoor WB ° C ° C TC (kW) SC (kW) TC (kW) SC (kW) TC (kW) SC (kW) 7.657...
  • Page 21 R22 Models (Heatpump) Model : MVF030AR - MLC030CR Cooling Mode Outdoor DB°C ID DB°C ID WB°C TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 10.129 6.322 9.305 5.561 8.481 4.800 7.657 4.039 6.832 3.278 5.843 2.365 10.142 5.729 9.341...
  • Page 22 Model : MVF040AR - MLC040CR Cooling Mode Outdoor DB°C ID DB°C ID WB°C TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 14.190 9.297 13.176 8.345 12.162 7.393 11.149 6.441 10.135 5.489 8.919 4.347 14.322 8.473 13.338 7.606 12.354 6.740...
  • Page 23 Model : MVF050AR - MLC050CR Cooling Mode Outdoor DB°C ID DB°C ID WB°C TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 14.601 9.970 13.788 9.119 12.975 8.267 12.162 7.416 11.349 6.565 10.374 5.543 15.269 9.851 14.384 8.893 13.500 7.935...
  • Page 24 F F F F F an P an P an P an P erf erf or or mance Cur mance Cur mance Cur mance Cur v v v v v es an P mance Cur Model : MVF 030AR External Static vs Air Flow Rate MVF 030AR Super High Speed High Speed Medium Speed...

  • Page 25: Outlines And Dimensions

    Outlines And Dimensions Outlines And Dimensions Outlines And Dimensions Outlines And Dimensions Outlines And Dimensions Indoor Unit Model : MVF 030/040/050 AR Outdoor Unit Model : MLC 030/040/050 CR Note : Dimension in mm...
  • Page 26 W W W W W iring Dia iring Dia iring Dia iring Dia g g g g g r r r r r ams iring Dia Heatpump Indoor Unit Model : MVF 030AR Outdoor Unit Model : MLC 030CR...
  • Page 27 Heatpump Indoor Unit Model : MVF 040/050AR Outdoor Unit Model : MLC 040/050CR...

  • Page 28: Installation

    Installa Installa tion tion Installa tion tion Installa Installa tion (1) Installation Of Indoor Unit Preliminary Site Survey Electrical supply and installation is to confirm to local authority's (e.g. National Electrical Board) codes and regulations. Voltage supply fluctuation must not exceed ± 10% of rated voltage. Electricity supply lines must be independent of welding transformers which can cause high supply fluctuation.
  • Page 29 Pipings Do not use containminated or damaged copper tubings. If pipings, evaporator or condenser is exposed or had been opened for 15 seconds or more, vacuum and purge with field supplied refrigerant. Generally, do notremove plastic, rubber plugs or caps from fittings, tubings and coils unit ready to connect suction or liquid line into fittings.
  • Page 30 Outdoor Unit As condensing temperature rises, evaporating temperature rises and cooling capacity drops. In order to achieve maximum cooling capacity, the location selected for outdoor unit should fulfill the following requirements : • Install the condensing (outdoor) unit in a way such that hot air distributed by the outdoor condensing unit cannot be drawn in again (as in the case of short circuit of hot discharge air).
  • Page 31 Oper Oper a a a a a tion Oper tion tion tion Oper Oper tion Maximum Piping Length And Maximum Number Of Bends When the pipe length becomes too long, both the capacity and reliability drop. As the number of bends increases, system piping resistance to the refrigerant flow increases, thus lowering the cooling capacity, and as the result the compressor may become defective.
  • Page 32 Electrical Connections • Wiring regulations on wire diameters differ from country to country. Please refer to your LOCAL ELECTRICAL CODES for field wiring rules. Be sure that installations comply with the rules and regulations. General Precautions • Ensure that the rated voltage of the unit corresponds to the name plate before carrying out proper wiring according to the wiring diagram.
  • Page 33 Additional Charge • The refrigerant charge has already charged into the outdoor unit. For the piping length of 7.6m and below, additional refrigerant charge after vacuuming is not necessary. • When the piping length is more than 7.6m, please use the table below (unit in gram). MODEL MVF030AR MVF040AR...
  • Page 34 Operating State And Fault Table Cooling & Heatpump (Universal Board) ERROR CODE AT 7 SEGMENT DISPLAY OPERATION / FAULTY INDICATION E1 BLINKING ROOM SENSOR CONTACT LOOSE/SHORT E2 BLINKING INDOOR COIL SENSOR CONTACT LOOSE/SHORT E3 BLINKING OUTDOOR COIL SENSOR CONTACT LOOSE/SHORT E4 BLINKING COMPRESSOR OVERLOAD E5 BLINKING...
  • Page 35 R R R R R emote Contr emote Contr emote Contr emote Contr ol Oper ol Oper ol Oper a a a a a tion Guide ol Oper tion Guide tion Guide tion Guide emote Contr ol Oper tion Guide AC-5300 (OPTIONAL) 1.
  • Page 36 Ser vicing vicing vicing And Maintenance vicing And Maintenance And Maintenance And Maintenance vicing And Maintenance Warning : Disconnect from main supply before servicing the air conditioner The unit is designed to give long life operation with minimum maintenance required. However, it should be regularly checked and the following items should be given due attention.
  • Page 37 The design of the MLC outdoor series allows servicing to be carried out readily and easily. The removal of the top/front and back panel make almost every part accessible. Under normal circumstances, these outdoor units only require a check and cleaning of air intake coil surface once quar- terly.

  • Page 38: Operation

    Troubleshooting When the air-conditioner malfunction is noted, immediately switch off the power supply to the unit, and contact the local dealer if necessary. Some simple troubleshooting tips are given below : FAULT CAUSES / ACTION 1. The compressor does • Protection against the frequent starting.
  • Page 39 FOR COOLING ONLY MODELS OR HEAT PUMP MODELS (COOLING CYCLE) DIAGNOSIS BY FLOW CHART The following chart are efficient checking procedures for troubleshooting when these fan-coil units, are coupled with the condensing units using standard wiring. For dual circuited models, perform the procedures for each circuit.
  • Page 40 INSUFFICIENT COOLING Insufficient Cooling Cycling On Compressor Cycling High Discharge Pressure or Low See "High Discharge Pressure" or Tripping Suction Pressure "Low Suction Pressure" Dual Pressure Switch Clogged Capillary or Pressure Repair Clogging and Replace Switch The Switch If Required Switch Faulty Repair or Change If Necessary Running...
  • Page 41 HIGH SUCTION PRESSURE High Suction Pressure Evaporator Air Inlet Excessive Fresh Air Intake Reduce The Fresh Air Intake Temperature Insufficient Duct Insulation Reinforce The Duct Insulation Defective Compressor Valve Change Or Repair The Compressor Overcharged Refrigerant Purge The Refrigerant LOW SUCTION PRESSURE Low Suction Pressure Evaporator Restricted...
  • Page 42 FOR HEAT PUMP MODELS BY MEANS OF PRESSURE READINGS : PRESSURE PROBABLE CAUSE Data Circuit High Side 1. Overcharged with refrigerant. Low Side 2. Non-condensable gases in refrigerant circuit (e.g. oil). 3. Obstructed air-intake/discharge. 4. Short circuiting of hot air at condensing unit. High Side 1.
  • Page 43 The most common causes of air conditioner failure to “start” are : ± a) Voltage not within 10% of rated voltage. b) Power supply interrupted. c) Control settings improper d) Air Conditioner is disconnected from main power source. e) Fuse blown or circuit breaker off. II) DIAGNOSIS OF REFRIGERANT CIRCUIT /APPLICATION There might be some cases where the unit starts running but does not perform satisfactory, i.e.
  • Page 44 P P P P P ar ar ts List ts List ts List ts List ts List Model : MVF030AR Description Part Number ASSY., PANEL BASE A50014070302 ASSY., DRAIN PAN A50014070303 ASSY., INS. BACK PANEL A50064070306 ASSY., INS. PANEL SERVICE A50064070810 ASSY., INS.
  • Page 45 Model: MVF040/050AR Description Part Number ASSY., PANEL BASE A50014070302 ASSY., DRAIN PAN A50014070303 ASSY., INS. BACK PANEL A50064070306 ASSY., INS. PANEL SERVICE A50064070810 ASSY., INS. PANEL LEFT SUPPORT A50064070853 ASSY., INS. PANEL RIGHT SUPPORT A50064070811 ASSY., PANEL DISCHARGE BLOWER A50014070307 ASSY.
  • Page 46 Model: MLC030/040/050CR No Description Part No No Description Part No Assy. Base Pan A50014053238 Top Panel A01011029900 Assy. Flare Valve 2 Ways 3/8" A50059000221 10 Assy. Coil Assy. Flare Valve 3 Ways 5/8" A50059000071 ALC 30C A50024041851 Panel, Partition A50014053277 ALC 30CR A50024035282 Compressor...
  • Page 47 ©2005 McQuay International +1 (800) 432-1342 www.mcquay.com...

This manual is also suitable for:

Mvf 040 arMvf 050 ar