Catalog Ceiling Concealed D Series Models: MCC 075 D(R) - MCC 100 D(R) MCC-D-2009
Table of Contents Nomenclature.........................................................................................................................1 - Product Line-Up Features.................................................................................................................................6 Application Information..........................................................................................................
Nomenclature Production spec variation A: First Issue Type of connection B: For Brazed Electrical Characteristic A: 50Hz / 1Ph / 220-240V M CC 075 D R - A B A Model Type R: Heatpump Omitted if cooling only Series D: D series Capacity 075: 75,000 Btu/h Model Name CC: Ceiling Concealed Refrigerant Blank: R22 4: R407C Brand M: McQuay A
A: First Issue Type of connection B: For Brazed Electrical Characteristic F: 50Hz / 3Ph / 380-415V P: 60Hz / 3Ph / 208-230V Q: 60Hz / 3Ph / 460V M 4 MC 075 E R - F B A Model Type R: Heatpump Omitted if cooling only Series E: E Series D: D series Capacity 075: 75,000 Btu/h Model Name MC: Single Split Condensing Unit Refrigerant Blank: R22 4: R407C Brand M: McQuay A
Marking CE Mark TXV ALUMINIUM (CORR.) With Air Filter Level Switch Built-in Filter Rail ABAA X X X X X X X X 100D ABAA X X X X X X X X 075DR ABAA X X X X X X X X 100DR ABAA X X X X X X X X Fin Refrigerant Control Handset L2 075D Cap.
Cooling Only Model FBAA FBAA FCAA FCAB FBAA FBAA FCAA FCAB X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Gas pipe size (in) X X X X X Liquid Pipe Size (in) X X X X X X X X X X X X X X X X X X X X X X Gold Fin (NA549) X X X X X X X X X X X X X X X X X X X X X X X X M4MC-D Series Product Line Up Classification Others 1/2 1 5/8 1-
Heatpump Models 150ER X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Phase Sequencer Check valve With Brazed Type Ball Valve Rivet "Made In Malaysia" Gold Fin (NA549) For Sequential Controller Gas Pipe Size (in) X Gas Pipe Size (in) X Liquid Pipe Size (in) X Liquid Pipe Size (in) X X X X X X X X X X X X X With Brazed Type Ball Valve X X X X X X X X X X X X X X X With Accumulator X X X X X X X
Features Invisible Operation The unit is installed concealed above the ceiling. MCC-D is designed to intelligently create a comfortable and healthy indoor air climate, while remaining invisible. This allows user to enjoy conditioned air without sacrificing room space or interior design creativity. Flexibility In System Design The unit offers fan motor that can operate up to 4 speeds, thus provide choices of external static pressure for designing ducting system.
Application Information Operating Range Ensure the operating temperature is in allowable range. Cooling only 54 High ambient unit Outdoor temp. (°CDB) 46 Caution : Standard point 35 The use of your air conditioner outside the range of working temperature and humidity can result in serious failure . 19 Low ambient kit -5 24 15 Indoor temp. (°CWB) Heat pump Heating Cooling 54 Outdoor temp. (°CDB) Outdoor temp.
Refrigerant Circuit Diagrams Model: MCC 075D – MMC 075D MCC 075D – M4MC 075D MCC 100D – MMC 100D MCC 100D – M4MC 100D Model: MCC 075DR – MMC 075ER MCC 075DR – M4MC 075ER MCC 100DR – MMC 100ER MCC 100DR – M4MC 100ER
Controllers Netware III Fan Speed Display Displays the fan speed setting. (Auto/High/Medium/Low) Operation Mode Display Displays the current mode of operation. Sleep Display Display the sleep / energy saving status. Swing Display Display the air swing status. Error Display Key Lock Display Display indicates when key lock function is activated. AUTO KEY LOCK MON TUE WED THU FRI SAT SUN TIMER ACTIVE °C or °F Display Display the temperature in °C or °F.
Operating Lamp AUTO SLEEP DRY AUTO COOL HEAT FAN SWING KEY LOCK MON TUE WED THU FRI SAT SUN TIMER ACTIVE SET TIMER SET CLOCK COOL TEMP. HEAT TEMP. ROOM TEMP. ON / OFF SLEEP FAN MODE SWING ON TIMER OFF TIMER DAY HOUR SET TEMP CLOCK HOLD MINUTE Swing Press SWING button to activate the air sweep function. Sleep Press SLEEP button to activate the sleep or energy saving mode. Fan Press FAN button to select Auto, High, Medium or Low fan speed.
Timer Active Display Current Time Display Operating Lamp Key Lock AUTO SLEEP DRY AUTO COOL HEAT FAN SWING KEY LOCK MON TUE WED THU FRI SAT SUN TIMER ACTIVE SET TIMER SET CLOCK COOL TEMP. HEAT TEMP. ROOM TEMP. ON / OFF SLEEP FAN MODE SWING ON TIMER OFF TIMER DAY HOUR SET TEMP Minute When the control is in set clock or set timer mode, pressing the MINUTE button will change the set minute.
Operating State and Fault Table Wired Handset – Netware III Cooling / Heat Pump Model Error Code Event Room sensor open or short Indoor coil sensor open Outdoor coil sensor open Compressor overload / Indoor or outdoor coil sensor short Blink E1 Blink E2 Blink E3 Blink E4 Phase Sequencer The unit with Scroll Compressor can only rotate in one direction. For this reason, a protective device (phase sequencer) is fitted to prevent incorrect wiring of the electrical phases.
Installation Caution Sharp edges and coil surfaces are potential injury hazard. Avoid from contact with them. (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.
Pipings Do not use contaminated 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 not remove plastic, rubber plugs or caps from fittings, tubings and coils until ready to connect suction or liquid line into fittings. For MCC 075/100D/DR, the piping connections are brazing type.
(2) Installation of Outdoor Unit MMC Series 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).
(3) Refrigerant Piping Field Piping To ensure satisfactory operation and performance, the following points should be noted for the field piping arrangements of the complete refrigerant cycle. a) Liquid loops or oil traps must be provided according to the position of the outdoor and indoor units (depending on whether the indoor unit is above or below the outdoor unit). b) Field supplied filter dryer should be provided as close to the expansion valve(s) of the indoor unit (evaporator) as possible.
Guidelines Of Field-charging Air Conditioning Systems With Scroll Compressors These guidelines are intended for use with Scroll compressors only with R22, R407C, R134a, R404A, R507, and R410A refrigerants. They do not apply to reciprocating compressors or competitive Scroll compressors. Field-charging - Some Precaution Points Scroll compressors have a very high volumetric efficiency and quickly pump a deep vacuum if there is insufficient refrigerant in the system or if refrigerant is added too slowly.
Typical service valves Found on the outdoor unit Shredder valves Shredder core Shredder valve with core removed Shredder valve with core in place Most split systems have a suitable connection on the outdoor unit Shredder valves provide easy system access for pressure reading and addition of refrigerant. On small systems, they provide a reasonable connection for evacuation also.
Charging Recommendations Charging liquid in a CONTROLLED manner into the suction side until the system is full. This recommendation does not hold true for reciprocaing compressors where liquid charging into the suction side could cause severe damage. Charging Cylinder on Scale Close-up of Scale Carefully monitor the suction and discharge pressures - ensure that the suction pressure does not fall below 25 psig (1.7 bar) at any time during the charging process.
(5) Additional Charge • The refrigerant charge has already charged into the outdoor unit. For the piping length of 7.6m, additional refrigerant charge after vacuuming is not necessary. • For MMC 075/100D/ER, please refer to the table below: Liquid Pipe Size, inch Additional Charge, kg/meter 1/2” 0.10 5/8” 0.17 The additional refrigerant charge amount recommended is a guideline for longer piping application.
Special Precaution When Dealing With Refrigerant R407C Unit (1) What is new refrigerant R407C? R407C is a zeotropic refrigerant mixture which has Zero Ozone Depletion Potential (ODP = 0) and thus, conforms to the Montreal Protocol regulation. It requires Polyol-ester (POE) oil for its compressor’s lubricant. Its refrigerant capacity and performance are about the same as the refrigerant R22.
(c) Ensure that the compressor is not exposed to open air for more than the recommended time specified by its manufacturer (typically less than 10 minutes). Remove the seal-plug only when the compressor is about to be brazed. (d) The system should be thoroughly vacuumed to 1.0 Pa (-700mmHg) or lower. This vacuuming level is more stringent then R22 system so as to ensure no incompressible gas and moisture in the system.
(6) Overall Checking • • • • Ensure the following, in particular: 1. The unit is mounted solidly and rigid in position. 2. Piping and connections are leak proof after charging. 3. Proper wiring has been done. Drainage check – pour some water into drain pan. Test run 1. Conduct a test run after water drainage test and gas leakage test. 2.
Sound Data Sound Power MCC 075D/DR Ext. Static (mmAq) Speed 125Hz 1/1 Octave Sound Power Level (dB, reference 1pW) 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz Overall (dBA) 20 SH 69 71 72 73 71 69 65 78 14 Hi 67 69 72 72 70 68 64 77 10 Me 62 66 69 69 65 63 58 73 7 Lo 58 61 64 64 61 58 51 68 8kHz Overall (dBA) MCC 100D/DR Ext.
MCC 075D/DR NC CURVES 70 60 50 NC-50 SH FAN NC-45 HI FAN 40 NC-40 ME FAN NC-35 LO FAN 30 NC-30 NC-25 20 NC-20 10 0 125 250 500 1000 2000 4000 8000 Octave-band Frequency (Hz) MCC 100D/DR NC CURVES 70 60 SH FAN 50 NC-50 HI FAN NC-45 ME FAN NC-40 40 LO FAN NC-35 NC-30 30 NC-25 20 NC-20 10 0 125 250 500 1000 Octave-band Frequency (Hz) 25 2000 4000 8000
Selection Process Fan Performance Chart MCC 075D/DR BLOWER PERFORMANCE CURVE 50 45 40 35 SH 1400 RPM Total Static Pressure, (mm w.g.
MCC 100D/DR BLOWER PERFORMANCE CURVE 50 45 SH 40 H M 35 L Total Static Pressure, (mm w.g.
Engineering & Physical Data Specifications General Data - Cooling Only (R22) INDOOR UNIT MODEL OUTDOOR UNIT NOMINAL CAPACITY NOMINAL TOTAL INPUT POWER NOMINAL RUNNING CURRENT POWER SOURCE EER MCC 075D MCC 100D MMC 075D MMC 100D Btu/h 75000 95000 W 21960 27820 W 8471 10822 A 16.30 19.40 V/Ph/Hz 380 - 415 / 3 / 50 380 - 415 / 3 / 50 W/W 2.
General Data - Heat pump (R22) MODEL INDOOR UNIT MCC 075DR MCC 100DR OUTDOOR UNIT MMC 075ER MMC 100ER 75000 100000 Btu/h NOMINAL COOLING CAPACITY W 21960 29310 Btu/h 84000 110000 W 24600 32240 NOMINAL TOTAL INPUT POWER (COOLING) W 7356 10200 NOMINAL TOTAL INPUT POWER (HEATING) W 7206 9800 NOMINAL HEATING CAPACITY NOMINAL RUNNING CURRENT (COOLING) A 13.60 17.9 NOMINAL RUNNING CURRENT (HEATING) A 13.30 17.20 V/Ph/Hz 380 - 415 / 3 / 50 380 - 415 / 3 / 50 EER W/W 3.
General Data - Cooling Only (R407C) MODEL INDOOR UNIT MCC 075D MCC 100D OUTDOOR UNIT M4MC 075D M4MC 100D Btu/h 75000 100000 W 21960 29310 11040 NOMINAL CAPACITY NOMINAL TOTAL INPUT POWER W 7706 NOMINAL RUNNING CURRENT A 13.80 19.00 V/Ph/Hz 380 - 415 / 3 / 50 380 - 415 / 3 / 50 W/W 3.
General Data - Heat pump (R407C) INDOOR UNIT MCC 075DR MCC 100DR OUTDOOR UNIT M4MC 075ER M4MC 100ER Btu/h 75000 100000 W 21960 29310 Btu/h 84000 110000 W 24600 32240 NOMINAL TOTAL INPUT POWER (COOLING) W 7706 11040 NOMINAL TOTAL INPUT POWER (HEATING) W 7706 9279 NOMINAL RUNNING CURRENT (COOLING) A 13.80 19.00 NOMINAL RUNNING CURRENT (HEATING) A 13.80 19.
Components Data (R22) MODEL INDOOR UNIT MCC 075D MCC 100D OUTDOOR UNIT MMC 075D MMC 100D TYPE CENTRIFUGAL 2 QUANTITY INDOOR FAN 2 ZINC COATED STEEL MATERIAL DIRECT DIRECT DIAMETER mm/in 228.6 / 9.0 228.6 / 9.0 LENGTH mm/in 177.8 / 7.0 DRIVE 228.6 / 9.
Components Data (R22) MODEL INDOOR UNIT MCC 075DR MCC 100DR OUTDOOR UNIT MMC 075ER MMC 100ER CENTRIFUGAL TYPE 2 QUANTITY INDOOR FAN 2 ZINC COATED STEEL MATERIAL ZINC COATED STEEL DIRECT DIRECT DIAMETER mm/in 228.6 / 9.0 228.6 / 9.0 LENGTH mm/in 177.8 / 7.0 DRIVE 228.6 / 9.
Components Data (R407C) MODEL INDOOR UNIT OUTDOOR UNIT MCC 075D MCC 100D M4MC 075D M4MC 100D TYPE CENTRIFUGAL 2 QUANTITY INDOOR FAN 2 ZINC COATED STEEL MATERIAL DIRECT DIRECT DIAMETER mm/in 228.6 / 9.0 228.6 / 9.0 LENGTH mm/in 177.8 / 7.0 DRIVE 228.6 / 9.
Components Data (R407C) MODEL INDOOR UNIT OUTDOOR UNIT MCC 075DR MCC 100DR M4MC 075ER M4MC 100ER CENTRIFUGAL TYPE 2 QUANTITY INDOOR FAN 2 ZINC COATED STEEL MATERIAL DIRECT DIRECT DIAMETER mm/in 228.6 / 9.0 228.6 / 9.0 LENGTH mm/in 177.8 / 7.0 DRIVE 228.6 / 9.0 TYPE INDOOR FAN MOTOR INDUCTION QUANTITY INDEX OF PROTECTION (IP) 1 1 N/A N/A TYPE OUTDOOR FAN PROPELLER QUANTITY 1 MATERIAL ALUMINIUM DRIVE DIRECT mm/in DIAMETER 812.8 / 32.
Safety Devices MODEL INDOOR UNIT MCC 075D MCC 100D OUTDOOR UNIT MMC 075D MMC 100D TYPE HIGH PRESSURE SWITCH SAFETY DEVICE NC NC OPEN kPa / psi 2937 / 426 2937 / 426 CLOSE kPa / psi 2413 / 350 2413 / 350 TYPE LOW PRESSURE SWITCH kPa / psi 124 / 18 124 / 18 CLOSE kPa / psi 193 / 28 193 / 28 DISCHARGE THERMOSTAT SETTING °C / °F MCC 075DR MCC 100DR MMC 100ER NC NC OPEN kPa / psi 2937 / 426 2937 / 426 CLOSE kPa / psi 2413 / 350 2413 / 350 TYPE LOW PRESSURE SWITCH 124 / 1
Performance Data Performance Table 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. Example: Model: MCC 075D – MMC 075D Indoor Condition: 23°C DB, 15°C WB Outdoor Condition: 37°C DB Solution: Overall Based on the Performance table on Pg.41, 1. Refer to the Indoor DB column, - 23°C is located between 20°C and 24°C (Thus, Interpolation need to be applied) 2.
Details: 1st Step: To obtain the Total capacity and Sensible capacity for (a) Indoor Condition: 24°C DB, 15°C WB Outdoor Condition: 35°C DB Indoor DB ˚C 24 Outdoor DB, ˚C 35 TC (kW) SC (kW) Indoor WB ˚C X1 20.171 20.701 15 16 17 y1 15.069 14.560 Total capacity, TC => X1 = 19.640kW (Same as Total capacity at 20°C Indoor DB / 15°C Indoor WB & 35°C Outdoor WB)* Sensible capacity, SC Extrapolation Method: 17˚C - 15˚C = => 17˚C - 16˚C 14.560kW - y1 14.560kW - 15.
2nd Step: To obtain the Total capacity and Sensible capacity for (a) Indoor Condition: 23°C DB, 15°C WB Outdoor Condition: 35°C DB Indoor DB ˚C Indoor WB ˚C 20 23 24 15 15 15 Outdoor DB, ˚C 35 TC (kW) SC (kW) 19.640 X3 19.640 11.235 y3 15.578 Total capacity, TC => X3 = 19.640kW (Same as Total capacity at 20°C Indoor DB / 15°C Indoor WB & 35°C Outdoor WB)* Sensible capacity, SC Interpolation Method: 24˚C - 20˚C = => 24˚C - 23˚C 15.578kW - 11.235kW 15.578kW - y3 => y3 = 14.
3rd Step: To obtain the Total capacity and Sensible capacity for (a) Indoor Condition: 23°C DB, 15°C WB Outdoor Condition: 37°C DB Indoor DB ˚C Indoor WB ˚C 23 15 Outdoor DB, ˚C 35 37 40 TC (kW) SC (kW) TC (kW) SC (kW) TC (kW) SC (kW) 19.640 Total capacity, TC Interpolation Method: 40˚C - 35˚C => = 40˚C - 37˚C 18.144kW - 19.640kW 18.144kW - x => x = 19.042kW Sensible capacity, SC Interpolation Method: 40˚C - 35˚C => = 40˚C - 37˚C => y = 13.940kW 13.111kW - 14.
R22 Models (Cooling Only) Model : MCC 075D / MMC 075D Outdoor DB°C ID DB°C 20 24 28 30 20 ID WB°C 25 30 35 40 46 TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) 15 24.127 15.380 22.632 13.998 21.136 12.617 19.640 11.235 18.144 9.854 16.349 SC(kW) 8.196 16 24.455 14.355 23.027 13.145 21.599 11.936 20.171 10.727 18.742 9.517 17.028 8.066 16 24.455 18.697 23.027 17.487 21.599 16.278 20.171 15.069 18.742 13.860 17.028 12.
R22 Models (Heat Pump) Model : MCC 075DR / MMC 075ER Cooling Mode Outdoor DB°C 20 ID DB°C ID WB°C 25 30 35 TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) 15 24.127 15.380 22.632 13.998 21.136 12.617 16 24.455 14.355 23.027 13.145 21.599 11.936 16 24.455 18.697 23.027 17.487 21.599 17 24.783 17.672 23.423 16.634 22.062 40 46 SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 19.640 11.235 18.144 9.854 16.349 8.196 20.171 10.727 18.742 9.517 17.028 8.066 16.278 20.
R22 Models (Heat Pump) Model : MCC 100DR / MMC 100ER Cooling Mode Outdoor DB°C 20 ID DB°C ID WB°C 25 30 SC(kW) TC(kW) 35 SC(kW) TC(kW) 40 TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) 15 32.860 20.133 30.721 18.230 28.582 16.326 26.443 14.422 24.305 16 33.230 18.434 31.184 16.834 29.138 15.233 27.092 13.633 25.046 16 33.230 24.647 31.184 23.047 29.138 21.447 27.092 19.846 25.046 17 33.601 22.947 31.647 21.651 29.694 20.354 27.740 19.058 18 33.971 21.248 32.
R407C Models (Cooling Only) Model : MCC 075D / M4MC 075D Outdoor DB°C ID DB°C 20 24 28 30 20 ID WB°C 25 30 35 40 46 TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) 15 24.127 15.380 22.632 13.998 21.136 12.617 19.640 11.235 18.144 9.854 16.349 SC(kW) 8.196 16 24.455 14.355 23.027 13.145 21.599 11.936 20.171 10.727 18.742 9.517 17.028 8.066 16 24.455 18.697 23.027 17.487 21.599 16.278 20.171 15.069 18.742 13.860 17.
R407C Models (Heat Pump) Model : MCC 075DR / M4MC 075ER Cooling Mode Outdoor DB°C 20 ID DB°C ID WB°C 20 24 28 30 25 30 35 40 46 TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 15 24.127 15.380 22.632 13.998 21.136 12.617 19.640 11.235 18.144 9.854 16.349 8.196 16 24.455 14.355 23.027 13.145 21.599 11.936 20.171 10.727 18.742 9.517 17.028 8.066 16 24.455 18.697 23.027 17.487 21.599 16.278 20.171 15.069 18.742 13.
R407C Models (Heat Pump) Model : MCC 100DR / M4MC 100ER Cooling Mode Outdoor DB°C 20 ID DB°C ID WB°C 20 24 28 30 25 30 35 40 46 TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) TC(kW) SC(kW) 15 32.860 20.133 30.721 18.230 28.582 16.326 26.443 14.422 24.305 12.518 21.738 10.234 16 33.230 18.434 31.184 16.834 29.138 15.233 27.092 13.633 25.046 12.033 22.590 10.113 16 33.230 24.647 31.184 23.047 29.138 21.447 27.092 19.846 25.
Dimensional Data Outlines And Dimensions Indoor Unit Model: MCC 075D/DR Note: All Dimension are in mm Model: MCC 100D/DR Note: All Dimension are in mm 47
Outdoor Unit Model: MMC / M4MC 075/100D/ER Note: All Dimension are in mm 48
Electrical Data Electrical Data - Cooling Only (R22) MODEL INDOOR UNIT MCC 075D MCC 100D OUTDOOR UNIT MMC 075D MMC 100D INSULATION GRADE POWER SOURCE INDOOR MOTOR CLASS B V/Ph/Hz 220 - 240 / 1 / 50 RATED INPUT POWER W 1061 RATED RUNNING CURRENT A 4.51 5.79 MOTOR OUTPUT W 750 1000 4 POLES INSULATION GRADE POWER SOURCE OUTDOOR MOTOR V/Ph/Hz 380 - 415 / 3 / 50 RATED INPUT POWER W 600 RATED RUNNING CURRENT A 1.
Electrical Data - Cooling Only (R407C) MODEL INDOOR UNIT OUTDOOR UNIT MCC 075D MCC 100D M4MC 075D M4MC 100D CLASS B INSULATION GRADE POWER SOURCE INDOOR MOTOR RATED INPUT POWER V/Ph/Hz 220 - 240 / 1 / 50 W 1061 RATED RUNNING CURRENT A 4.51 5.79 MOTOR OUTPUT W 750 1000 4 POLES OUTDOOR MOTOR V/Ph/Hz 380 - 415 / 3 / 50 RATED INPUT POWER W 600 RATED RUNNING CURRENT A 1.
Wiring Diagrams Cooling Only Model: MCC 075/100D vs MMC / M4MC 075/100D 51
Heat Pump Model: MCC 075/100DR vs Model: MMC / M4MC 075/100ER 52
Servicing 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. Components Air Filter (Indoor Unit) Indoor Unit Condense Drain Pan & Pipe Indoor Fan Maintenance Procedures Recommended Schedule 1.
The design concept of the Condensing Unit is such that all servicing can be done from the front and side of the unit. Upon removal of front and side panel, all the electrical “terminal box”, fan and motor assembly and compressor are easily accessible. Under normal circumstances, these outdoor units only require a check and cleaning of air intake coil surfaces once quarterly.
Troubleshooting When a malfunction of the air conditioner unit is detected, immediately switch off the main power supply before proceeding with the following troubleshooting procedures. The following are common fault conditions and simple troubleshooting tips. If any other fault conditions which are not listed occur, contact your nearest local dealer. DO NOT attempt to troubleshoot the unit by yourself. No 1 Fault conditions The air conditioner unit will not resume after power failure.
Diagnostic Guidelines By means of pressure readings: High side Low side High side Low side High side Low side High side Low side High side Low side Too High A Little High A Little Low Too Low Circuit Normal Pressure Data • • Probable cause • • • • • • • • • • • • • • • • • • • • • • • • • Overcharged with refrigerant. Non-condensable gases in refrigerant circuit (e.g. air) Obstructed air-intake / discharge. Hot air short circuiting in outdoor unit.
By means of diagnostic flow chart: Generally, there are two kinds of problems, i.e. starting failure and insufficient cooling/heating. “Starting failure” is caused by electrical defect while improper application or defects in refrigerant circuit causes “Insufficient cooling / heating”.
1 2 Condenser fan contactor Fau lty Ch ange the c on tactor Coil burnt Ch ange the c on tacts Contact faulty Fan motor faulty Other electrical component faulty C om pre ss or contact or Fau lty R epa ir or c hange the moto r contact or R epa ir or c hange if ne cess ary Coil burnt Contact faulty Open compressor windings Incorrect wiring The most common causes of air conditioner failure to “start” are : a) Voltage not within ±10% of rated voltage. b) Power supply interrupted.
ii ) Diagnosis of Refrigerant Circuit / Application There might be some causes where the unit starts running but does not perform satisfactorily, i.e. insufficient cooling. Judgement could be made by measuring temperature difference of indoor unit’s intake and discharge air as well as running current.
Insufficient heating Air circulation R estrict ed Indoor / outdoor coil dirty (clogged) Cl ean t he c oil Indoor air filter dirty Cl ean t he fil ter Fan motor malfunction Obstruction at air inlet / outlet of indoor / outdoor unit Hi gh heating load R efrigerant circuit Compressor W indows / doors wi de ope n Ch ange o r repa ir t he motor R emo ve the o bst ructi on Cl ose the w indow s / doo rs R efrigerant sho rt c har ge or re friger ant leakage Ad d refri gera nt.
Exploded View & Part List Model: MCC 075D/DR Part No Part No No Description No Description 1 Assy, Panel Front Base R50014076024 16 Panel, Side Big Right R01014073365 2 Panel, Back Base R01014074050 17 Bracket, Drain Pump Cover R01014077181 3 Assy, Drain Pan R50019023584 18 Switch, Level R04069022966 4 Assy, Coil Tubing 19 Assy.
Model: MCC 100D/DR No Description Part No No Description Part No 1 Assy, Panel Front Base R50014076025 16 Panel, Side Big Right R01014073365 2 Panel, Back Base R01014073346 17 Bracket, Drain Pump Cover R01014077181 3 Assy, Drain Pan R50019023585 18 Switch, Level R04069022966 4 Assy, Coil Tubing 19 Assy.
Model: MMC / M4MC 075/100D NO. 1 2 3 4 5 6 7 8 9 DESCRIPTION ASSY, BASE PAN COMPRESSOR MMC 075D M4MC 075D MMC 100D M4MC 100D STRUC. TUBE SUPT MMC / M4MC 075D MMC / M4MC 100D ASSY, ACCESS VALVE MMC 075/100D A4MC 75/100D SUPT, TUBE LIQUID MMC / M4MC 075D MMC / A4MC 100D SUPT, TUBE GAS MMC / M4MC 075D MMC / M4MC 100D ASSY, COIL L MMC / M4MC 075D MMC / M4MC 100D ASSY, COIL R MMC / M4MC 075D MMC / M4MC 100D STRUC, COIL PART NO. R50014045044 NO. 10 11 12 DESCRIPTION ASSY, STRUC. BACK L ASSY, STRUC.
Model: MMC / M4MC 075/100ER NO. 1 2 3 4 5 6 7 8 9 10 DESCRIPTION ASSY, BASE PAN COMPRESSOR MMC 075ER M4MC 75ER MMC 100ER M4MC 100ER ACCUMULATOR MMC / M4MC 075ER MMC / M4MC 100ER STRUC, TUBE SUPT. MMC / M4MC 075ER MMC / M4MC 100ER SUPT, LIQUID TUBE MMC / M4MC 075ER MMC / M4MC 100ER SUPT, GAS TUBE MMC / M4MC 075ER MMC / M4MC 100ER ASSY, ACCESS VALVE MMC 075/100ER M4MC 075/100ER ASSY, COIL L MMC / M4MC 075ER MMC / M4MC 100ER ASSY, COIL R MMC / M4MC 075ER MMC / M4MC 100ER STRUC, COIL PART NO.
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