Your Climate. We're There. TM: MDB B 2140B. Ducted Split Systems. Models: MDB 075B - MDB750B MDB 075B/B - MDB500BR. Air Conditioning REGISTERED

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1 Your Climate. We're There. TM: MDB B 2140B Ducted Split Systems Models: MDB 075B - MDB750B MDB 075B/B - MDB500BR REGISTERED Air Conditioning

2 Contents Nomenclature System... 2 Features... 2 General Specifications Specifications Performance Characteristics Drive Package Selection Example Blower Performance Curves Outlines And Dimensions (Indoor) Outlines And Dimensions (Outdoor) Wiring Diagrams (heat pump) Wiring Diagrams (cooling) Installation (Indoor)...54 Installation (Outdoor) Servicing And Maintenance...60 Operation Troubleshooting Note : Installation and maintenance are to be performed only by qualified personnel who are familiar with local codes and regulations, and experienced with this type of equipment. Caution: Sharp edges and coil surfaces are a potential injury hazard. Avoid contact with them. Warning : Moving machinery and electrical power hazard. May cause severe personal injury or death. Disconnect and lock off power before servicing equipment. "McQuay" is a registered trademark of McQuay International. All rights reserved throughout the world 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." 1

3 Nomenclature system M DB 150 B 2 BRAND STATIC BLOWER 150,000 BTU/HR GENERATION NUMBER OF REFRIGERANT CIRCUIT Features Easy Maintenance The simple design concept has maintenance and servicing in mind. Access to the internal part of the unit can be from either side of the unit by loosening a few screws. Only for model MDB 060B, 070B and 100B with additional servicing panel from bottom Flexibility In Installation MDB 040B - MDB 150B models come with standard horizontal air discharge whereas MDB 200B - MDB 750B models come with standard vertical air discharge. However, the range from MDB 125B - MDB 750B are designed to cater for either horizontal or vertical air discharge application. Versatility Multiple rooms can be cooled together at the same time by using just one unit of fan coil unit. Fresh Air For Healthy Living Fresh air can be introduced into the building through the design of fresh air intakes. This will help to improve the indoor air quality. Superior Air Distribution For Comfortable Living The conditioned air can be effectively distributed to every corner of the room through the ducting and this ensure a more pleasant environment for comfort living. Flexibility Of Air Supply McQuay MDB series using belt driven fan such as that the air volume and static required can be adjusted according to the requirement. This flexibility allow for wider application. 2

4 General Specifications Unit The casing is constructed with electro-galvanised mild steel sheet which provides a rigid cabinet. The internal components are easily accessible by removing the front panel. The finishing of the casing is a long-lasting epoxy polyester powder coating. Condenser Coil Each coil consists of staggered rows of 3/8" OD seamless copper tubes, mechanically expanded into die-formed corrugated aluminium fins. Each coil provided with integral sub-cooling circuit to maximize energy efficiency and promote superior match-system operating performance when connected to suitably sized DX Evaporator-blower unit. Coils are leak and pressure tested to 450 psig, evacuated and dehydrated. Condenser Fan and Motor The propeller fan is of acryl styrene resin construction, direct driven by weatherproof single phase PSC motor. Fan motor has class E insulation. Fan is protected with plastic outer nozzle. Compressor High efficiency, refrigerant-cooled, reciprocating/scroll hermetic compressor has internal suspension system to eliminate noise, vibration and further resiliently isolated from unit base. Compressor has internal overload protection. Units are provided with manual reset high-low pressure cut-outs and crankcase heater for off-cycle operation to guard against compressor valve plate damage during start-up. Compressor is covered with sound shield to further reduce noise level. Safety Controls Manual reset high pressure and low pressure cut-outs to guard against compressor damage due to high discharge head pressure and system leakage respectively. Crankcase heater for each compressor to prevent liquid migration, which can damage compressor valve plates, during off-cycle and eases start-up. Sequential Controller Functions (Standard for heatpump units and optional for cooling only units) 1. Sequential controller LCD display A : Time display B : Error indication C : Compressor running display (up to 4 compressors) D : Key lock display E : Heater display (up to 2 heaters) F : Energy saving mode display G : Compressor defrost cycle display (up to 4 compressors) H : Operation mode display I : Temperature set display 3

5 2. Operating Guide 2.1 ON/OFF key Press once to start the air conditioning unit. Press again to stop the unit. The operation lamp next to the key lights up and goes off respectively when the unit is running or not running. Caution : In the case when the ON/OFF key is pressed immediately after the operation is stopped, the unit will not restart until 3 minutes later to protect the compressor. 2.2 Selecting Operation Mode Press the MODE key to select the type of operating mode. Consecutive press of the key switches the operation over "COOL", "HEAT", "AUTO" and "FAN" 2.3 SAVE Mode Press the SAVE key to select the energy saving function. This option is only available for "COOL", "HEAT" and "AUTO" modes. 2.4 Auxiliary Electric Heater If the "HEAT" mode provides insufficient heating to a room even at the highest temperature setting (30 C), press the HEATER key to activate the auxiliary electric heater. For models with two heaters, consecutive press of the key allows the selection of one or both heaters active. 2.5 Temperature Setting To set the desired room temperature, press or to increase or decrease the set temperature in the range of 16 C to 30 C. Press both and simultaneously to toggle between C and F setting. 2.6 Time Setting Real time Clock Press the CLOCK key once to activate set clock mode. Press again to disable set clock mode. Under set clock mode, the time of the present day can be set by pressing the respective MINUTE, HOUR and DAY key. 7-days timer Press the ON TIMER key to activate auto-on timer mode. Under this mode, press the respective MINUTE, HOUR and DAY key to select the time of the week when the air-conditioning unit is to automatically start running. Press the ON TIMER key again to save the setting. Press the OFF TIMER key to activate auto-off timer mode. Under this mode, press the respective MINUTE, HOUR and DAY key to select the time of the week when the air-conditioning unit is to automatically stop running. Press the ON TIMER key again to save the setting. Then to activate the 7-days timer, press and hold the TIMER ACTIVE key until the word "TIMER ACTIVE" appears on the LCD screen. Repeat the same step to disable the 7-days timer. 2.7 Other Function Key Lock Press the MINUTE key 3 times consecutively to activate the key lock. A "KEY LOCK" symbol will appear on the LCD screen. At this point, only the ON/OFF key is valid. To disable the key lock, again press the MINUTE key 3 times consecutively. Test run Press the TEST key 2 times consecutively to test run the unit. 3. Error Code When the system is on and an error occurs, the ON/OFF LED on the LCD panel will blink and an error code is shown. When the system is off and there is a thermistor error, the ON/OFF LED is off but the error code is still displayed. Each error code represents different message as below 4

6 Error code Possible fault Error code Possible fault E01 Require manual reset (possible causes) E19 Indoor coil sensor 4 short E02 Compressor 1 high temperature (overload) E20 Indoor coil sensor 1 open E03 Compressor 2 high temperature(overload) E21 Indoor coil sensor 2 open E04 Compressor 3 high temperature(overload) E22 Indoor coil sensor 3 open E05 Compressor 4 high temperature(overload) E23 Indoor coil sensor 4 open E06 Compressor 1 high pressure trip / contact open E24 Outdoor coil sensor 1 short E07 Compressor 2 high pressure trip / contact open E25 Outdoor coil sensor 2 short E08 Compressor 3 high pressure trip / contact open E26 Outdoor coil sensor 3 short E09 Compressor 4 high pressure trip / contact open E27 Outdoor coil sensor 4 short E10 Compressor 1 trip / low R-22 / outdoor abnormal E28 Outdoor coil sensor 1 open E11 Compressor 2 trip / low R-22 / outdoor abnormal E29 Outdoor coil sensor 2 open E12 Compressor 3 trip / low R-22 / outdoor abnormal E30 Outdoor coil sensor 3 open E13 Compressor 4 trip / low R-22 / outdoor abnormal E31 Outdoor coil sensor 4 open E14 Room sensor short E32 Compressor 1 de-ice E15 Room sensor open E33 Compressor 2 de-ice E16 Indoor coil sensor 1 short E34 Compressor 3 de-ice E17 Indoor coil sensor 2 short E35 Compressor 4 de-ice E18 Indoor coil sensor 3 short 4. Installation of LCD remote controller 4.1Accessories The following accessories are included. If any part is missing, contact your dealer immediately. 1 Remote controller 2 Wooden screw 4.1 x 16 (2 pieces) 3 Instruction manual 4.2 Step-by-step guide i) First, open up the casing of the LCD remote controller into its top and bottom case using a screwdriver. To do this, insert the screwdriver into the lower slot and slide it in the outward direction. ii) Fix the bottom case onto the wall with the 2 wooden screws provided. Then, insert the 4 connecting wires (from the main board) through the slot on the lower right. iii) Connect one end in each of the 4 wires to the terminal block behind the top case as shown below. The wire that goes into the "GND" terminal at the top case must be connected at the other end to the GND" terminal at the main board. The same goes for the "+5V", "B" and "A" connection. iv) Fasten back the top and bottom case into place. Hook the two upper claws into their respective slots and snap the lower part shut. 5

7 Specifications Cooling only MODEL INDOOR UNIT MDB075B MDB100B OUTDOOR UNIT MMC075B MMC075C MMC100B MMC100C TOTAL OUTDOOR Btu/h 75, ,000 COOLING 35 CDB kcal/h 18,900 25,200 CAPACITY W 21,975 29,300 ELECTRO GALVANIZED MILD STEEL CASING FINISHING INSULATION EPOXY POLYESTER POWDER COATING PE HEIGHT (H) mm (in) INDOOR UNIT OUTDOOR UNIT 572 (22.51) 572 (22.51) 1,502 (59.13) 1,502 (59.13) 761 (29.96) 761 (29.96) 96 (211) 100 (220) DIMENSION WIDTH (W) mm (in) DEPTH (D) mm (in) NET WEIGHT kg (lb) NOISE LEVEL dba EVAPORATOR COIL CROSS FINNED TUBES SEAMLESS COPPER TUBE WALL THICKNESS mm (in) 0.35 (0.013) OUTER DIAMETER mm (in) 9.52 (3/8) ALUMINUM FIN THICKNESS mm (in) (0.005) ROWS FIN PER INCH CAPACITY STEP % FACE AREA m 2 (ft 2 ) 0.54 (5.82) 0.54 (5.82) FACE VELOCITY m/min (FPM) (429) (550) EVAPORATOR BLOWER / DRIVE BLOWER CENTRIFUGAL / DIRECT COLD ROLLED STEEL QUANTITY 2 2 BLOWER DIAMETER mm (in) (11.13) (11.13) BLOWER LENGTH mm (in) (8.00) (8.00) AIR FLOW CMM (CFM) (2,500) (3,200) EXTERNAL STATIC PRESSURE mm wg (in wg) (0.40) (0.40) EVAPORATOR BLOWER MOTOR POWER SUPPLY V / Ph / Hz PERMANENT SPLIT CAPACITOR / 1 / 50 / 60 NUMBER x RATED RUNNING CURRENT A 2 x x 1.63 NUMBER x RATED OUTPUT W 2 x x 373 NUMBER x RATED INPUT W 2 x x 436 MOTOR POLES REFRIGERANT 6 6 OF GAS PRECHARGED CONTROL PIPE CONNECTION R22 NITROGEN HOLDING THERMOSTAT EXPANSION VALVE BRAZING PIPE SIZE LIQUID mm (in) (1/2) (5/8) GAS mm (in) (1.00) (1-1/8) DRAIN PIPE CONNECTION mm (in) (1.00) AIR FILTER WASHABLE SARAN NET SIZE LENGTH x HEIGHT mm 622 x x 433 DEPTH mm (in) (1/2) (1/2) QUANTITY 2 2 CASING ELECTRO GALVANIZED MILD STEEL FINISHING EPOXY POLYESTER POWDER HEIGHT (H) mm (in) 946 (37.24) 946 (37.24) 946 (37.24) 971 (38.23) DIMENSION WIDTH (W) mm (in) 1,116 (43.93) 1,300 (51.18) 1,116 (43.93) 1,393 (54.84) DEPTH (D) mm (in) 939 (36.96) 500 (19.68) 939 (36.96) 500 (19.68) NET WEIGHT kg (lb) 162 (357) 163 (359) 193 (425) 176 (387) NOISE LEVEL dba CONDENSER COIL CROSS FINNED TUIBES SEAMLESS COPPER TUBE WALL THICKNESS mm (in) 0.35 (0.013) OUTER DIAMETER mm (in) 9.52 (3/8) ALUMINIUM FIN THICKNESS mm (in) (0.005) NUMBER x ROWS 2 x 1 1 x 2 2 x 2 1 x 3 FIN PER INCH FACE AREA m 2 (ft 2 ) 1.76 (19.00) 1.23 (13.25) 1.76 (19.00) 1.35 (14.54) FACE VELOCITY m/min (FPM) (368) (453) (368) (481) CONDENSER FAN / DRIVE BLADE PERMANENT SPLIT CAPACITOR / PROPELLER / DIRECT ALUMINIUM QUANTITY BLADE DIAMETER mm (in) (26) (26) (26) (30) POWER SUPPLY V / Ph / Hz /3/ /1/ /3/ /3/50 NUMBER x RATED RUNNING CURRENT A NUMBER x RATED INPUT W ,100 MOTOR POLES AIR FLOW CMM (CFM) (7,000) (6,000) (7,000) (7,000) COMPRESSOR POWER SUPPLY V / Ph / Hz SCROLL /3/50 RATED RUNNING CURRENT A RATED INPUT W 6,810 6,810 9,040 9,040 MAXIMUM STARTING CURRENT A PROTECTION DEVICE STAGE OF CAPACITY CONTROL STARTER OVERLOAD PROTECTION & MANUAL RESET HIGH / LOW PRESSURE SWITCH ON / OFF AUTO-TRANSFORMER REFRIGERANT OF GAS PRECHARGED R22 NITROGEN HOLDING NOTES : 1.ALL UNITS ARE BEING TESTED AND COMPLY TO ARI210/ NOMINAL COOLING CAPACITIES ARE BASED ON THE FOLLOWING CONDITIONS. INDOOR 26.7 CDB, 19.4 CWB, OUTDOOR 35 CDB. 3.ALL SPECIFICATIONS ARE SUBJECTED TO CHANGE BY MANUFACTURER WITHOUT PRIOR NOTICE. 4.AIR FILTER IS AN OPTIONAL ITEM. 6

8 MODEL INDOOR UNIT MDB125B MDB125C MDB150B2 MDB150C2 OUTDOOR UNIT MMC125B MMC075B x 2 MMC075C x 2 MMC075B x 2 MMC075C x 2 TOTAL OUTDOOR Btu/h 125, , , ,000 COOLING 35 CDB kcal/h 31,500 31,500 37,800 37,800 CAPACITY W 36,625 36,625 43,950 43,950 ELECTRO GALVANIZED MILD STEEL CASING FINISHING INSULATION EPOXY POLYESTER POWDER COATING PE HEIGHT (H) mm (in) 885 (34.84) 736 (28.97) INDOOR UNIT OUTDOOR UNIT DIMENSION WIDTH (W) mm (in) 1,640 (64.56) 1,640 (64.56) DEPTH (D) mm (in) 1,040 (40.94) 965 (37.99) NET WEIGHT kg (lb) 140 (308) 174 (383) NOISE LEVEL dba EVAPORATOR COIL TUBE WALL THICKNESS mm (in) OUTER DIAMETER mm (in) FIN THICKNESS mm (in) ROWS 3 4 FIN PER INCH CAPACITY STEP % FACE AREA m 2 (ft 2 ) 1.00 (10.82) 0.79 (8.60) FACE VELOCITY m/min (FPM) (388) (488) EVAPORATOR BLOWER / DRIVE BLOWER BLOWER DIAMETER mm (in) (15.55) (15.55) BLOWER LENGTH mm (in) (15.00) (15.00) AIR FLOW CMM (CFM) (4,200) (4,200) EXTERNAL STATIC PRESSURE mm wg (in wg) (0.60) (0.60) BLOWER PULLEY DIAMETER mm 1 SPZ SPZ 160 MOTOR PULLEY DIAMETER mm 1 SPZ 80 1 SPZ 85 PULLEY B1 B1 EVAPORATOR BLOWER MOTOR POWER SUPPLY V / Ph / Hz NUMBER x RATED RUNNING CURRENT A NUMBER x RATED OUTPUT W 1,500 1,500 NUMBER x RATED INPUT W 1,100 1,100 MOTOR POLES 4 4 REFRIGERANT OF GAS PRECHARGED CONTROL PIPE CONNECTION PIPE SIZE LIQUID mm (in) (3/4) (5/8) GAS mm (in) (1-1/8) (1 1/4) DRAIN PIPE CONNECTION mm (in) AIR FILTER SIZE LENGTH x HEIGHT mm 457 x x 589 DEPTH mm (in) 50.8 (2.00) 50.8 (2.00) QUANTITY 3 3 CASING FINISHING 946 (37.24) 1,116 (43.93) 939 (36.96) 224 (493) 75 CONDENSER COIL TUBE WALL THICKNESS mm (in) OUTER DIAMETER mm (in) FIN THICKNESS mm (in) 2 x (19.00) (368) CONDENSER FAN DRIVE BLADE (26) /3/ (7,000) COMPRESSOR POWER SUPPLY V / Ph / Hz , PROTECTION DEVICE STAGE OF CAPACITY CONTROL STARTER REFRIGERANT OF GAS PRECHARGED CROSS FINNED TUBES SEAMLESS COPPER 0.35 (0.013) 9.52 (3/8) ALUMINUM (0.005) (10.82) (425) CENTRIFUGAL / BELT DRIVEN ZINC COATED STEEL (15.55) (15.00) (4,600) (0.60) 1 SPZ SPZ 80 B1 SQUIRREL CAGE INDUCTION 400 / 3 / ,500 1,630 4 R22 NITROGEN HOLDING THERMOSTAT EXPANSION VALVE BRAZING (1/2) (1.00) (1.00) NOTES : 1. ALL UNITS ARE BEING TESTED AND COMPLY TO ARI210/ NOMINAL COOLING CAPACITIES ARE BASED ON THE FOLLOWING CONDITIONS. INDOOR 26.7 CDB, 19.4 CWB, OUTDOOR 35 CDB. 3. ALL SPECIFICATIONS ARE SUBJECTED TO CHANGE BY MANUFACTURER WITHOUT PRIOR NOTICE. 4. AIR FILTER IS AN OPTIONAL ITEM. 885 (34.84) 736 (28.97) 1,640 (64.54) 1,819 (71.61) 1,040 (40.94) 965 (37.99) 145 (319) 188 (414) (9.80) (469) (15.55) (15.00) (4,600) (0.60) 2 SPZ SPZ 71 B1 WASHABLE VILEDON 457 x x (2.00) 50.8 (2.00) 3 3 ELECTRO GALVANIZED MILD STEEL EPOXY POLYESTER POWDER HEIGHT (H) mm (in) 946 (37.24) 946 (37.24) 946 (37.24) 946 (37.24) DIMENSION WIDTH (W) mm (in) 1,116 (43.93) 1,300 (51.18) 1,116 (43.93) 1,300 (51.18) DEPTH (D) mm (in) 939 (36.96) 500 (19.68) 939 (36.96) 500 (19.68) NET WEIGHT kg (lb) 162 (357) 163 (359) 162 (357) 163 (359) NOISE LEVEL dba ,200 1, (5/8) (1-3/8) CROSS FINNED TUIBES SEAMLESS COPPER 0.35 (0.013) 9.52 (3/8) ALUMINIUM (0.005) NUMBER x ROWS 2 x 1 1 x 2 2 x 1 1 x 2 FIN PER INCH FACE AREA m 2 (ft 2 ) 1.76 (19.00) 1.23 (13.25) 1.76 (19.00) 1.23 (13.25) FACE VELOCITY m/min (FPM) (368) (453) (368) (453) PROPELLER / DIRECT PERMANENT SPLIT CAPACITOR ALUMINIUM BLADE DIAMETER mm (in) (26) (26) (26) (26) POWER SUPPLY V / Ph / Hz /3/ /1/ /3/ /1/50 NUMBER x RATED RUNNING CURRENT A NUMBER x RATED INPUT W MOTOR POLES AIR FLOW CMM (CFM) (7,000) (6,000) (7,000) (6,000) SCROLL /3/50 RATED RUNNING CURRENT A RATED INPUT W 6,810 6,810 6,810 6,810 MAXIMUM STARTING CURRENT A OVERLOAD PROTECTION AND MANUAL RESET HIGH / LOW PRESSURE SWITCH ON / OFF AUTO-TRANSFORMER R22 NITROGEN HOLDING 7

9 MODEL INDOOR UNIT MDB150B1 MDB150C1 MDB200B2 MDB250B2 OUTDOOR UNIT MMC150C MMC100B x 2 MMC100C x 2 MMC125B x 2 TOTAL OUTDOOR Btu/h 150, , , ,000 COOLING 35 CDB kcal/h 37,800 37,800 50,400 63,000 CAPACITY W 43,950 43,950 58,600 73,250 ELECTRO GALVANIZED MILD STEEL CASING FINISHING INSULATION EPOXY POLYESTER POWDER COATING PE HEIGHT (H) mm (in) 885 (34.84) 736 (28.97) 945 (37.20) 1,291 (50.82) DIMENSION WIDTH (W) mm (in) 1,640 (64.56) 1,819 (71.61) 1,894 (74.56) 1,866 (73.46) DEPTH (D) mm (in) 1,040 (40.94) 965 (37.99) 980 (38.58) 1,199 (47.20) NET WEIGHT kg (lb) 145 (319) 188 (414) 180 (396) 250 (551) NOISE LEVEL dba EVAPORATOR COIL CROSS FINNED TUBES SEAMLESS COPPER TUBE WALL THICKNESS mm (in) 0.35 (0.013) OUTER DIAMETER mm (in) 9.52 (3/8) ALUMINIUM FIN THICKNESS mm (in) (0.005) ROWS FIN PER INCH CAPACITY STEP % FACE AREA m 2 (ft 2 ) 1.00 (10.82) 0.90 (9.80) 1.20 (12.92) 1.48 (16.01) FACE VELOCITY m/min (FPM) (425) (469) (495) (500) EVAPORATOR BLOWER / DRIVE BLOWER BLOWER DIAMETER mm (in) (15.55) (15.55) CENTRIFUGAL / BELT DRIVEN ZINC COATED STEEL (15.55) (18.50) BLOWER LENGTH mm (in) (15.00) (15.00) (15.00) (18.11) AIR FLOW CMM (CFM) (4,600) (4,600) (6,400) (8,000) EXTERNAL STATIC PRESSURE mm wg (in wg) (0.60) (0.60) (0.60) (0.80) BLOWER PULLEY DIAMETER mm 1 SPZ SPZ SPZ SPZ 180 MOTOR PULLEY DIAMETER mm 1 SPZ 80 2 SPZ 71 2 SPZ 80 2 SPZ 90 PULLEY B1 B1 B1 B2 EVAPORATOR BLOWER MOTOR POWER SUPPLY V / Ph / Hz SQUIRREL CAGE INDUCTION 400 / 3 / 50 NUMBER x RATED RUNNING CURRENT A NUMBER x RATED OUTPUT W 1,500 2,200 3,000 4,000 NUMBER x RATED INPUT W 1,630 1,682 2,730 3,370 MOTOR POLES REFRIGERANT OF GAS PRECHARGED CONTROL PIPE CONNECTION R22 NITROGEN HOLDING THERMOSTAT EXPANSION VALVE BRAZING PIPE SIZE LIQUID mm (in) (5/8) (5/8) (5/8) (5/8) GAS mm (in) (1-3/8) (1-3/8) (1-1/8) (1 1/4) DRAIN PIPE CONNECTION mm (in) (1.00) AIR FILTER WASHABLE VILEDON SIZE LENGTH x HEIGHT mm 457 x x x x 532 DEPTH mm (in) 50.8 (2.00) 50.8 (2.00) 50.8 (2.00) 50.8 (2.00) QUANTITY CASING ELECTRO GALVANIZED MILD STEEL FINISHING EPOXY POLYESTER POWDER HEIGHT (H) mm (in) 1,041 (40.98) 946 (37.24) (38.24) 946 (37.24) DIMENSION WIDTH (W) mm (in) 1,116 (43.93) 1,116 (43.93) 1,393 (54.84) 1,116 (43.93) DEPTH (D) mm (in) 939 (36.96) 939 (36.96) 500 (19.68) 939 (36.96) NET WEIGHT kg (lb) 258 (568) 193 (425) 176 (387) 224 (493) NOISE LEVEL dba CONDENSER COIL CROSS FINNED TUIBES SEAMLESS COPPER TUBE WALL THICKNESS mm (in) 0.35 (0.013) OUTER DIAMETER mm (in) 9.52 (3/8) ALUMINIUM FIN THICKNESS mm (in) (0.005) NUMBER x ROWS 2 x 2 2 x 2 1 x 3 2 x 2 FIN PER INCH FACE AREA m 2 (ft 2 ) 1.24 (13.38) 1.76 (19.00) 1.35 (14.54) 1.76 (19.00) FACE VELOCITY m/min (FPM) (433) (368) (481) (368) CONDENSER FAN DRIVE PROPELLER / DIRECT INDUCTION P. SPLIT CAPACITOR INDUCTION PERMANENT SPLIT CAPACITOR BLADE ALUMINIUM BLADE DIAMETER mm (in) (30) (26) (30) (26) POWER SUPPLY V / Ph / Hz / 3 / /3/ /3/ /3/50 NUMBER x RATED RUNNING CURRENT A NUMBER x RATED INPUT W 3, , MOTOR POLES AIR FLOW CMM (CFM) (11,600) (7,000) (7,000) (7,000) COMPRESSOR SCROLL POWER SUPPLY V / Ph / Hz /3/50 RATED RUNNING CURRENT A RATED INPUT W 13,300 9,040 9,040 10,200 MAXIMUM STARTING CURRENT A PROTECTION DEVICE OVERLOAD PROTECTION AND MANUAL RESET HIGH / LOW PRESSURE SWITCH STAGE OF CAPACITY CONTROL ON / OFF STARTER AUTO-TRANSFORMER REFRIGERANT R22 OF GAS PRECHARGED NITROGEN HOLDING INDOOR UNIT OUTDOOR UNIT NOTES : 1. ALL UNITS ARE BEING TESTED AND COMPLY TO ARI210/ NOMINAL COOLING CAPACITIES ARE BASED ON THE FOLLOWING CONDITIONS. INDOOR 26.7 CDB, 19.4 CWB, OUTDOOR 35 CDB. 3. ALL SPECIFICATIONS ARE SUBJECTED TO CHANGE BY MANUFACTURER WITHOUT PRIOR NOTICE. 4. AIR FILTER IS AN OPTIONAL ITEM. 8

10 MODEL INDOOR UNIT MDB300B3 MDB350B3 OUTDOOR UNIT MMC100B x 3 MMC100C x 3 MMC100B x 1 MMC100C x 1 MMC125B x 2 TOTAL OUTDOOR Btu/h 300, ,000 COOLING 35 CDB kcal/h 75,600 88,200 CAPACITY W 87, ,550 ELECTRO GALVANIZED MILD STEEL CASING FINISHING INSULATION EPOXY POLYESTER POWDER COATING FIBREGLASS / PE HEIGHT (H) mm (in) 1,291 (50.82) 1,546 (60.86) DIMENSION WIDTH (W) mm (in) 1,866 (73.46) 2,122 (83.54) DEPTH (D) mm (in) 1,199 (47.20) 1,199 (47.20) NET WEIGHT kg (lb) 270 (595) 320 (705) NOISE LEVEL dba EVAPORATOR COIL CROSS FINNED TUBES SEAMLESS COPPER TUBE WALL THICKNESS mm (in) 0.35 (0.013) OUTER DIAMETER mm (in) 9.52 (3/8) ALUMINIUM FIN THICKNESS mm (in) (0.005) ROWS FIN PER INCH CAPACITY STEP % FACE AREA m 2 (ft 2 ) 1.62 (17.50) 2.38 (25.62) FACE VELOCITY m/min (FPM) (514) (410) INDOOR UNIT OUTDOOR UNIT EVAPORATOR BLOWER / DRIVE BLOWER BLOWER DIAMETER mm (in) BLOWER LENGTH mm (in) AIR FLOW CMM (CFM) EXTERNAL STATIC PRESSURE mm wg (in wg) BLOWER PULLEY DIAMETER mm MOTOR PULLEY DIAMETER mm PULLEY EVAPORATOR BLOWER MOTOR POWER SUPPLY V / Ph / Hz NUMBER x RATED RUNNING CURRENT A NUMBER x RATED OUTPUT W NUMBER x RATED INPUT W MOTOR POLES REFRIGERANT OF GAS PRECHARGED CONTROL PIPE CONNECTION PIPE SIZE LIQUID mm (in) GAS mm (in) DRAIN PIPE CONNECTION mm (in) AIR FILTER SIZE LENGTH x HEIGHT mm DEPTH mm (in) CENTRIFUGAL / BELT DRIVEN ZINC COATED STEEL (18.50) (18.11) (18.50) (18.11) (9,000) (10,500) (0.80) (0.80) 2 SPZ SPZ SPZ 95 2 SPZ 125 B2 B2 R22 NITROGEN HOLDING THERMOSTAT EXPANSION VALVE BRAZING (5/8) AND (3/4) (1-1/8) / (1 1/4) (1.00) OF GAS PRECHARGED NOTES : 1. ALL UNITS ARE BEING TESTED AND COMPLY TO ARI210/ NOMINAL COOLING CAPACITIES ARE BASED ON THE FOLLOWING CONDITIONS. INDOOR 26.7 CDB, 19.4 CWB, OUTDOOR 35 CDB. 3. ALL SPECIFICATIONS ARE SUBJECTED TO CHANGE BY MANUFACTURER WITHOUT PRIOR NOTICE. 4. AIR FILTER IS AN OPTIONAL ITEM ,000 4, (5/8) (1-1/8) SQUIRREL CAGE INDUCTION 400 / 3 / 50 WASHABLE VILEDON 533 x (2.00) 617 x (2.00) QUANTITY 6 6 CASING ELECTRO GALVANIZED MILD STEEL FINISHING EPOXY POLYESTER POWDER HEIGHT (H) mm (in) 946 (37.24) (38.24) 946 (37.24) (38.24) 946 (37.24) DIMENSION WIDTH (W) mm (in) 1,116 (43.93) 1,393 (54.84) 1,116 (43.93) 1,393 (54.84) 1,116 (43.93) DEPTH (D) mm (in) 939 (36.96) 500 (19.68) 939 (36.96) 500 (19.68) 939 (36.96) NET WEIGHT kg (lb) 193 (425) 176 (387) 193 (425) 176 (387) 224 (493) NOISE LEVEL dba CONDENSER COIL CROSS FINNED TUIBES SEAMLESS COPPER TUBE WALL THICKNESS mm (in) 0.35 (0.013) OUTER DIAMETER mm (in) 9.52 (3/8) ALUMINIUM FIN THICKNESS mm (in) (0.005) NUMBER x ROWS 2 x 2 1 x 3 2 x 2 1 x 3 2 x 2 FIN PER INCH FACE AREA m 2 (ft 2 ) 1.76 (19.00) 1.35 (14.54) 1.76 (19.00) 1.35 (14.54) 1.76 (19.00) FACE VELOCITY m/min (FPM) (368) (481) (368) (481) (368) CONDENSER FAN DRIVE PERMANENT SPLIT CAPACITOR INDUCTION PROPELLER / DIRECT PERMANENT SPLIT CAPACITOR INDUCTION PERMANENT SPLIT CAPACITOR BLADE ALUMINIUM BLADE DIAMETER mm (in) (26) (30) (26) (30) (26) POWER SUPPLY V / Ph / Hz /3/ /3/ /3/ /3/ /3/50 NUMBER x RATED RUNNING CURRENT A NUMBER x RATED INPUT W 660 1, , MOTOR POLES AIR FLOW CMM (CFM) (7,000) (7,000) (7,000) (7,000) (7,000) COMPRESSOR POWER SUPPLY V / Ph / Hz SCROLL /3/50 RATED RUNNING CURRENT A RATED INPUT W 9,040 9,040 9,040 9,040 10,200 MAXIMUM STARTING CURRENT A PROTECTION DEVICE STAGE OF CAPACITY CONTROL STARTER REFRIGERANT R22 NITROGEN HOLDING ,500 4,510 4 OVERLOAD PROTECTION AND MANUAL RESET HIGH / LOW PRESSURE SWITCH ON / OFF AUTO-TRANSFORMER 9

11 MODEL INDOOR UNIT MDB400B4 MDB450B3 MDB500B4 MDB600B4 MDB750B5 OUTDOOR UNIT MMC100B x 4 MMC100C x 4 MMC150C x 3 MMC125B x 4 MMC150C x 4 MMC150C x 5 TOTAL OUTDOOR Btu/h 400, , , , ,000 COOLING 35 CDB kcal/h 100, , , , ,000 CAPACITY W 117, , , , ,750 ELECTRO GALVANIZED MILD STEEL CASING FINISHING INSULATION EPOXY POLYESTER POWDER COATING FIBREGLASS / PE HEIGHT (H) mm (in) 1,546 (60.86) 1,546 (60.86) 1,546 (60.86) 1,977 (77.83) 2,257 (88.85) DIMENSION WIDTH (W) mm (in) 2,274 (89.52) 2,274 (89.52) 2,274 (89.52) 2,274 (89.52) 2,274 (89.52) DEPTH (D) mm (in) 1,466 (57.71) 1,466 (57.71) 1,466 (57.71) 1,905 (75.00) 1,905 (75.00) NET WEIGHT kg (lb) 330 (727) 339 (747) 350 (771) 999 (2,202) 1,084 (2,389) NOISE LEVEL dba EVAPORATOR COIL CROSS FINNED TUBES SEAMLESS COPPER TUBE WALL THICKNESS mm (in) 0.35 (0.013) OUTER DIAMETER mm (in) 9.52 (3/8) ALUMINIUM FIN THICKNESS mm (in) (0.005) ROWS FIN PER INCH CAPACITY STEP % FACE AREA m 2 (ft 2 ) 2.38 (25.62) 2.58 (27.78) 2.55 (27.45) 3.37 (36.32) 3.97 (42.73) FACE VELOCITY m/min (FPM) (468) (485) (546) (495) (526) EVAPORATOR BLOWER / DRIVE BLOWER CENTRIFUGAL / BELT DRIVEN ZINC COATED STEEL BLOWER DIAMETER mm (in) (23.30) (23.30) (23.30) (30.90) (30.90) BLOWER LENGTH mm (in) (22.20) (22.20) (22.20) (27.79) (27.79) AIR FLOW CMM (CFM) (12,000) (13,500) (15,000) (18,000) (22,500) EXTERNAL STATIC PRESSURE mm wg (in wg) (0.80) (1.00) (1.00) (1.20) (1.40) BLOWER PULLEY DIAMETER mm 2 SPA SPA SPA SPA SPA 400 MOTOR PULLEY DIAMETER mm 2 SPA SPA SPA SPA SPA 140 PULLEY B3 B3 B3 B3 B3 EVAPORATOR BLOWER MOTOR POWER SUPPLY V / Ph / Hz SQUIRREL CAGE INDUCTION 400 / 3 / 50 NUMBER x RATED RUNNING CURRENT A NUMBER x RATED OUTPUT W 5,500 7,500 11,000 11,000 15,000 NUMBER x RATED INPUT W 4,835 6,302 8,035 9,200 11,683 MOTOR POLES REFRIGERANT OF GAS PRECHARGED CONTROL PIPE CONNECTION R22 NITROGEN HOLDING THERMOSTAT EXPANSION VALVE BRAZING PIPE SIZE LIQUID mm (in) (5/8) (5/8) (5/8) (5/8) (5/8) GAS mm (in) (1-1/8) (1-3/8) (1-1/4) (1-3/8) (1-3/8) DRAIN PIPE CONNECTION mm (in) (1.00) AIR FILTER WASHABLE VILEDON SIZE LENGTH x HEIGHT mm 668 x x x x x 672 DEPTH mm (in) 50.8 (2.00) 50.8 (2.00) 50.8 (2.00) 50.8 (2.00) 50.8 (2.00) QUANTITY CASING ELECTRO GALVANIZED MILD STEEL FINISHING EPOXY POLYESTER POWDER HEIGHT (H) mm (in) 946 (37.24) (38.24) 1,041 (40.98) 946 (37.24) 1,041 (40.98) 1,041 (40.98) DIMENSION WIDTH (W) mm (in) 1,116 (43.93) 1,393 (54.84) 1,116 (43.93) 1,116 (43.93) 1,116 (43.93) 1,116 (43.93) DEPTH (D) mm (in) 939 (36.96) 500 (19.68) 939 (36.96) 939 (36.96) 939 (36.96) 939 (36.96) NET WEIGHT kg (lb) 193 (425) 176 (387) 258 (568) 224 (493) 258 (568) 258 (568) NOISE LEVEL dba CONDENSER COIL CROSS FINNED TUIBES SEAMLESS COPPER TUBE WALL THICKNESS mm (in) 0.35 (0.013) OUTER DIAMETER mm (in) 9.52 (3/8) ALUMINIUM FIN THICKNESS mm (in) (0.005) NUMBER x ROWS 2 x 2 1 x 3 2 x 2 2 x 2 2 x 2 2 x 2 FIN PER INCH FACE AREA m 2 (ft 2 ) 1.76 (19.00) 1.35 (14.54) 1.24 (13.38) 1.76 (19.00) 1.24 (13.38) 1.24 (13.38) FACE VELOCITY m/min (FPM) (368) (481) (433) (368) (433) (433) CONDENSER FAN DRIVE PROPELLER / DIRECT P. SPLIT CAPACITOR INDUCTION P. SPLIT CAPACITOR INDUCTION INDUCTION BLADE ALUMINIUM BLADE DIAMETER mm (in) (26) (30) (30) (26) (30) (30) POWER SUPPLY V / Ph / Hz /3/ /3/ /3/ /3/ /3/ /3/50 NUMBER x RATED RUNNING CURRENT A NUMBER x RATED INPUT W 660 1,110 3, ,200 3,200 MOTOR POLES AIR FLOW CMM (CFM) (7,000) (7,000) (11,600) (7,000) (11,600) (11,600) COMPRESSOR SCROLL POWER SUPPLY V / Ph / Hz /3/50 RATED RUNNING CURRENT A RATED INPUT W 9,040 9,040 13,300 10,200 13,300 13,300 MAXIMUM STARTING CURRENT A PROTECTION DEVICE OVERLOAD PROTECTION AND MANUAL RESET HIGH / LOW PRESSURE SWITCH STAGE OF CAPACITY CONTROL ON / OFF STARTER AUTO-TRANSFORMER REFRIGERANT R22 OF GAS PRECHARGED NITROGEN HOLDING INDOOR UNIT OUTDOOR NOTES : 1. ALL UNITS ARE BEING TESTED AND COMPLY TO ARI210/ NOMINAL COOLING CAPACITIES ARE BASED ON THE FOLLOWING CONDITIONS. INDOOR 26.7 CDB, 19.4 CWB, OUTDOOR 35 CDB. 3. ALL SPECIFICATIONS ARE SUBJECTED TO CHANGE BY MANUFACTURER WITHOUT PRIOR NOTICE. 4. AIR FILTER IS AN OPTIONAL ITEM. 10

12 Specifications Heatpump MODEL INDOOR UNIT MDB075BR MDB100BR MDB125CR OUTDOOR UNIT MMC075CR MMC100BR MMC125BR NORMINAL Btu/h 74,000 98, ,000 COOLING kcal/h 18,650 24,899 29,234 CAPACITY W 21,688 28,957 33,998 TOTAL Btu/h 74,000 96, ,000 HEATING kcal/h 18,650 24,333 30,242 CAPACITY W 21,688 28,300 35,170 ELECTRO GALVANIZED MILD STEEL CASING FINISHING INSULATION EPOXY POLYESTER POWDER COATING PE HEIGHT (H) mm (in) 572 (22.51) 572 (22.51) 736 (28.97) DIMENSION WIDTH (W) mm (in) 1,502 (59.13) 1,502 (59.13) 1,640 (64.56) DEPTH (D) mm (in) 761 (29.96) 761 (29.96) 965 (37.99) NET WEIGHT kg (lb) 96 (211) 100 (220) 174 (383) NOISE LEVEL dba EVAPORATOR COIL CROSS FINNED TUBES SEAMLESS COPPER INNER GROOVE TUBE WALL THICKNESS mm (in) 0.35 (0.013) 0.36 (0.014) OUTER DIAMETER mm (in) 9.52 (3/8) ALUMINUM FIN THICKNESS mm (in) (0.005) ROWS FIN PER INCH CAPACITY STEP % FACE AREA m 2 (ft 2 ) 0.54 (5.82) 0.54 (5.82) 0.79 (8.60) FACE VELOCITY m/min (FPM) (429) (550) (488) EVAPORATOR BLOWER / DRIVE CENTRIFUGAL / DIRECT CENTRIFUGAL / BELT DRIVEN BLOWER QUANTITY 2 ZINC COATED STEEL 2 1 BLOWER DIAMETER mm (in) (11.13) (11.13) (15.55) BLOWER LENGTH mm (in) (8.00) (8.00) (15.00) AIR FLOW CMM (CFM) (2,500) (3,200) (4,200) EXTERNAL STATIC PRESSURE mm wg (in wg) (0.40) (0.40) (0.60) BLOWER PULLEY DIAMETER mm SPZ 160 MOTOR PULLEY DIAMETER mm SPZ 85 PULLEY - - B1 EVAPORATOR BLOWER MOTOR PERMANENT SPLIT CAPACITOR SQUIRREL CAGE INDUCTION POWER SUPPLY V / Ph / Hz / 1 / / 3 / 50 NUMBER x RATED RUNNING CURRENT A NUMBER x RATED OUTPUT W ,500 NUMBER x RATED INPUT W ,500 MOTOR POLES REFRIGERANT OF GAS PRECHARGED PIPE CONNECTION R22 NITROGEN HOLDING BRAZING PIPE SIZE LIQUID mm (in) (1/2) (5/8) (5/8) GAS mm (in) (1.00) (1-1/8) (1-3/8) DRAIN PIPE CONNECTION mm (in) (1.00) AIR FILTER WASHABLE SARAN NET WASHABLE VILEDON SIZE LENGTH x HEIGHT mm 622 x x x 589 DEPTH mm (in) (1/2) (1/2) 50.8 (2.00) QUANTITY CASING ELECTRO GALVANIZED MILD STEEL FINISHING EPOXY POLYESTER POWDER HEIGHT (H) mm (in) 946 (37.24) 946 (37.24) 1,041 (40.98) DIMENSION WIDTH (W) mm (in) 1,300 (51.18) 1,116 (43.93) 1,116 (43.93) DEPTH (D) mm (in) 500 (19.68) 939 (36.96) 939 (36.96) NET WEIGHT kg (lb) 170 (374) 205 (451) 224 (494) NOISE LEVEL dba CONDENSER COIL CROSS FINNED TUIBES SEAMLESS COPPER INNER GROOVE TUBE WALL THICKNESS mm (in) 0.35 (0.013) 0.36 (0.014) OUTER DIAMETER mm (in) 9.52 (3/8) ALUMINIUM FIN THICKNESS mm (in) (0.005) NUMBER x ROWS 1 x 2 2 x 2 2 x 2 FIN PER INCH FACE AREA m 2 (ft 2 ) 1.23 (13.25) 1.76 (19.00) 1.76 (19.00) FACE VELOCITY m/min (FPM) (453) (368) (474) CONDENSER FAN / DRIVE PROPELLER / DIRECT BLADE ALUMINIUM QUANTITY BLADE DIAMETER mm (in) (26) (26) (30) POWER SUPPLY V / Ph / Hz / 1 / / 3 / 50 NUMBER x RATED RUNNING CURRENT A 1 x x NUMBER x RATED OUTPUT W 1 x x 373 1,250 NUMBER x RATED INPUT W 1 x x 700 1,720 MOTOR POLES AIR FLOW CMM (CFM) (6,000) (7,000) (9,000) COMPRESSOR RECIPROCATING HERMETIC POWER SUPPLY V / Ph / Hz /3/50 RATED RUNNING CURRENT (COOLING) A RATED RUNNING CURRENT (HEATING) A RATED INPUT (COOLING) W 6,583 9,550 12,230 RATED INPUT (HEATING) W 5,820 8,050 9,696 MAXIMUM STARTING CURRENT A INDOOR UNIT OUTDOOR UNIT PROTECTION DEVICE STAGE OF CAPACITY CONTROL REFRIGERANT CONTROL CAPILLARY TUBE (INDOOR & OUTDOOR) NOTES : 1. ALL UNITS ARE BEING TESTED AND COMPLY TO ARI210/ NOMINAL COOLING CAPACITIES ARE BASED ON THE FOLLOWING CONDITIONS. INDOOR 26.7 CDB, 19.4 CWB, OUTDOOR 35 CDB. 3. ALL SPECIFICATIONS ARE SUBJECTED TO CHANGE BY MANUFACTURER WITHOUT PRIOR NOTICE. 4. AIR FILTER IS AN OPTIONAL ITEM. 11 OVERLOAD PROTECTION & AUTO RESET HIGH PRESSURE SWITCH ON / OFF R22

13 MODEL INDOOR UNIT MDB150BR2 MDB200BR2 MDB250BR2 MDB300BR3 MDB350BR3 MDB400BR4 MDB500BR4 OUTDOOR UNIT MMC075CR x 2 MMC100BR x 2 MMC125BR x 2 MMC100BR x 3 MMC100BR MMC125BR x 2 MMC100BR x 4 MMC125BR x 4 NORMINAL Btu/h 148, , , , , , ,000 COOLING kcal/h 37,298 49,798 58,468 74,698 83,367 99, ,935 CAPACITY W 43,376 57,913 67,995 86,870 96, , ,991 TOTAL Btu/h 148, , , , , , ,000 HEATING kcal/h 37,298 48,669 60,484 73,004 84,819 97, ,968 CAPACITY W 43,376 56,600 70,340 84,900 98, , ,680 ELECTRO GALVANIZED MILD STEEL CASING FINISHING INSULATION EPOXY POLYESTER POWDER COATING EXPANDED CLOSED CELL PE FOAM HEIGHT (H) mm (in) 885 (34.84) 945 (37.20) 1,291 (50.82) 1,291 (50.82) 1,546 (60.86) 1,546 (60.86) 1,546 (60.86) DIMENSION WIDTH (W) mm (in) 1,640 (64.54) 1,894 (74.56) 1,866 (73.46) 1,866 (73.46) 2,122 (83.54) 2,274 (89.52) 2,274 (89.52) DEPTH (D) mm (in) 1,040 (40.94) 980 (38.58) 1,199 (47.20) 1,199 (47.20) 1,199 (47.20) 1,466 (57.71) 1,466 (57.71) NET WEIGHT kg (lb) 145 (319) 180 (396) 250 (551) 270 (595) 320 (705) 330 (727) 350 (771) NOISE LEVEL dba EVAPORATOR COIL CROSS FINNED TUBES SEAMLESS COPPER TUBE WALL THICKNESS mm (in) 0.35 (0.013) OUTER DIAMETER mm (in) 9.52 (3/8) ALUMINIUM FIN THICKNESS mm (in) (0.005) ROWS FIN PER INCH CAPACITY STEP % FACE AREA m 2 (ft 2 ) 1.00 (10.82) 1.20 (12.92) 1.48 (16.01) 1.62 (17.50) 2.38 (25.62) 2.38 (25.62) 2.55 (27.45) FACE VELOCITY m/min (FPM) (425) (495) (500) (514) (410) (468) (546) EVAPORATOR BLOWER / DRIVE BLOWER CENTRIFUGAL / BELT DRIVEN ZINC COATED STEEL BLOWER DIAMETER mm (in) (15.55) (15.55) (18.50) (18.50) (18.50) (23.30) (23.30) BLOWER LENGTH mm (in) (15.00) (15.00) (18.11) (18.11) (18.11) (22.20) (22.20) AIR FLOW CMM (CFM) (4,600) (6,400) (8,000) (9,000) (10,500) (12,000) (15,000) EXTERNAL STATIC PRESSURE mm wg (in wg) (0.60) (0.60) (0.80) (0.80) (0.80) (0.80) (1.00) BLOWER PULLEY DIAMETER mm 1 SPZ SPZ SPZ SPZ SPZ SPA SPA 315 MOTOR PULLEY DIAMETER mm 1 SPZ 80 2 SPZ 80 2 SPZ 90 2 SPZ 95 2 SPZ SPA SPA 150 PULLEY B1 B1 B2 B2 B2 B3 B3 EVAPORATOR BLOWER MOTOR POWER SUPPLY V / Ph / Hz SQUIRREL CAGE INDUCTION 400 / 3 / 50 RATED RUNNING CURRENT A RATED OUTPUT POWER W 1,500 3,000 4,000 4,000 5,500 5,500 11,000 NOMINAL RUNNING CURRENT A NOMINAL INPUT POWER W 1,630 2,730 3,370 4,000 4,510 4,835 8,035 MOTOR POLES REFRIGERANT OF GAS PRECHARGED PIPE CONNECTION R22 NITROGEN HOLDING BRAZING PIPE SIZE LIQUID mm (in) (1/2) (5/8) (5/8) (5/8) (5/8) (5/8) (5/8) (5/8) GAS mm (in) (1.00) (1-1/8) (1-3/8) (1-1/8) (1-1/8) (1-3/8) (1-1/8) (1-3/8) DRAIN PIPE CONNECTION mm (in) (1.00) AIR FILTER WASHABLE VILEDON SIZE LENGTH x HEIGHT mm 457 x x x x x x x 661 DEPTH mm (in) 50.8 (2.00) 50.8 (2.00) 50.8 (2.00) 50.8 (2.00) 50.8 (2.00) 50.8 (2.00) 50.8 (2.00) QUANTITY CASING ELECTRO GALVANIZED MILD STEEL FINISHING EPOXY POLYESTER POWDER HEIGHT (H) mm (in) 946 (37.24) 946 (37.24) 1,041 (40.98) 946 (37.24) 946 (37.24) 1,041 (40.98) 946 (37.24) 1,041 (40.98) DIMENSION WIDTH (W) mm (in) 1,300 (51.18) 1,116 (43.93) 1,116 (43.93) 1,116 (43.93) 1,116 (43.93) 1,116 (43.93) 1,116 (43.93) 1,116 (43.93) DEPTH (D) mm (in) 500 (16.98) 939 (36.96) 939 (36.96) 939 (36.96) 939 (36.96) 939 (36.96) 939 (36.96) 939 (36.96) NET WEIGHT kg (lb) 170 (374) 205 (451) 224 (493) 205 (451) 205 (451) 224 (493) 205 (451) 224 (493) NOISE LEVEL dba CONDENSER COIL CROSS FINNED TUIBES BARE TUBE INNER GROOVE BARE TUBE INNER GROOVE BARE TUBE INNER GROOVE TUBE WALL THICKNESS mm (in) 0.35 (0.013) 0.36 (0.014) 0.35 (0.014) 0.36 (0.014) 0.35 (0.013) 0.36 (0.014) OUTER DIAMETER mm (in) 9.52 (3/8) ALUMINIUM FIN THICKNESS mm (in) (0.005) NUMBER x ROWS 1 x 2 2 x 2 2 x 2 2 x 2 2 x 2 2 x 2 2 x 2 2 x 2 FIN PER INCH FACE AREA m 2 (ft 2 ) 1.23 (13.25) 1.76 (19.00) 1.76 (19.00) 1.76 (19.00) 1.76 (19.00) 1.76 (19.00) 1.76 (19.00) 1.76 (19.00) FACE VELOCITY m/min (FPM) (453) (368) (474) (368) (368) (474) (368) (474) CONDENSER FAN / DRIVE PROPELLER / DIRECT BLADE ALUMINIUM QUANTITY BLADE DIAMETER mm (in) (26) (26) (30) (26) (26) (30) (26) (30) POWER SUPPLY V / Ph / Hz / 1 / / 1 / / 3 / / 1 / / 1 / / 3 / / 1 / / 3 / 50 RATED RUNNING CURRENT A RATED OUTPUT POWER W , , ,250 RATED INPUT POWER W , , ,720 MOTOR POLES AIR FLOW CMM (CFM) (6,000) (7,000) (9,000) (7,000) (7,000) (9,000) (7,000) (9,000) COMPRESSOR. RECIPROCATING HERMETIC POWER SUPPLY V / Ph / Hz /3/50 RATED RUNNING CURRENT (COOLING) A RATED RUNNING CURRENT (HEATING) A RATED INPUT (COOLING) W 6,583 9,550 12,230 9,550 9,550 12,230 9,550 12,230 RATED INPUT (HEATING) W 5,820 8,050 9,696 8,050 8,050 9,696 8,050 9,696 MAXIMUM STARTING CURRENT A PROTECTION DEVICE OVERLOAD PROTECTION AND AUTO RESET HIGH PRESSURE SWITCH STAGE OF CAPACITY CONTROL ON / OFF REFRIGERANT R22 CONTROL CAPILLARY TUBE (INDOOR & OUTDOOR) INDOOR UNIT OUTDOOR UNIT NOTES : 1. ALL UNITS ARE BEING TESTED AND COMPLY TO ARI210/ NOMINAL COOLING CAPACITIES ARE BASED ON THE FOLLOWING CONDITIONS. INDOOR 26.7 CDB, 19.4 CWB, OUTDOOR 35 CDB. 3. ALL SPECIFICATIONS ARE SUBJECTED TO CHANGE BY MANUFACTURER WITHOUT PRIOR NOTICE. 4. AIR FILTER IS AN OPTIONAL ITEM. 12

14 Performance characteristics System Cooling Capacity MODEL CFM F F MDB075B / MMC075C MDB100B / MMC100B MDB125B / MMC125B MDB125B / MMC125B MDB125B / MMC125B MDB150B / MMC150C MDB150B / MMC150C MDB150B / MMC150C MDB200B2 / 2 X MMC100B MDB200B2 / 2 X MMC100B MDB200B2 / 2 X MMC100B AIR ON EVAPORATOR AIR VOL. EDB EWB TC TSC TC TSC TC TSC TC TSC TC TSC TC TSC 1000 BTU/H DRY BULB TEMPERATURE (DEG F) - AIR ENTERING CONDENSER BTU/H 1000 BTU/H 1000 BTU/H 1000 BTU/H 1000 BTU/H KEY : EDB - ENTERING DRY BULB EWB - ENTERING WET BULB TC - TOTAL COOLING CAPACITY TSC - TOTAL SENSIBLE COOLING CAPACITY 13

15 System Cooling Capacity MODEL CFM F F MDB250B2 / 2 X MMC125B MDB250B2 / 2 X MMC125B MDB250B2 / 2 X MMC125B AIR ON EVAPORATOR AIR VOL. EDB EWB DRY BULB TEMPERATURE (DEG F) - AIR ENTERING CONDENSER TC TSC TC TSC TC TSC TC TSC TC TSC TC TSC 1000 BTU/H 1000 BTU/H 1000 BTU/H 1000 BTU/H 1000 BTU/H 1000 BTU/H MDB300B2 / 2 X MMC150C MDB300B2 / 2 X MMC150C MDB300B2 / 2 X MMC150C MDB300B2 MMC150Cx2 MDB350B3 / 1 X MMC100B + 2 X MMC125B MDB350B3 / 1 X MMC100B + 2 X MMC125B MDB350B3 / 1 X MMC100B + 2 X MMC125B KEY : EDB EWB TC TSC - ENTERING DRY BULB - ENTERING WET BULB - TOTAL COOLING CAPACITY - TOTAL SENSIBLE COOLING CAPACITY 14

16 System Cooling Capacity MODEL CFM F F MDB400B4 / 4 X MMC100B MDB400B4 / 4 X MMC100B MDB400B4 / 4 X MMC100B MDB500B4 / 4 X MMC125B MDB500B4 / 4 X MMC125B MDB500B4 / 4 X MMC125B MDB600B4 / 4 X MMC150C MDB600B4 / 4 X MMC150C MDB600B4 / 4 X MMC150C MDB750B5 / 5 X MMC150C MDB750B5 / 5 X MMC150C MDB750B5 / 5 X MMC150C AIR ON EVAPORATOR AIR VOL. EDB EWB DRY BULB TEMPERATURE (DEG F) - AIR ENTERING CONDENSER TC TSC TC TSC TC TSC TC TSC TC TSC TC TSC 1000 BTU/H 1000 BTU/H 1000 BTU/H 1000 BTU/H 1000 BTU/H 1000 BTU/H KEY : EDB - ENTERING DRY BULB EWB - ENTERING WET BULB TC - TOTAL COOLING CAPACITY TSC - TOTAL SENSIBLE COOLING CAPACITY 15

17 Drive package selection example For MDB250B2, given conditions : Supply Air Quantity = 8,000 CFM External Static Pressure = 0.8 in. wg. Step 1: Find the velocity pressure (Hd). From blower performance curve of SB250B2, The velocity pressure at 8,000 CFM supply air = 0.55 in. wg. Step 2: Find total external static pressure (Ht). Total external static pressure = External static pressure + Velocity pressure (Hd) = 0.8 in. wg in.wg. = 1.35 in. wg. Step 3: Find fan operating speed and brake kw Read from blower performance curve of MDB250B2, a) Fan speed = 725 RPM b) Brake kw = 2.75 kw c) Fan efficiency = 72.4 % Step 4: Step 5: d) Motor kw = Brake kw x Safety factor (1.2) = 2.75 kw x 1.2 = 3.3 kw 4.0 kw Assuming change motor pulley only. Calculate motor pulley diameter (X). X = [ Blower speed (RPM) x Blower pulley diameter (in) ] / Motor speed (RPM) Fix blower pulley diameter = 12 in Read from Motor and Blower Specifications table, a) Motor speed = 1440 RPM b) X = [ 725 x 12 ] / 1440 = 6.04 in Choose 6.5 ( the next pulley size which is bigger than 6.04 ) Calculate V-belt size. Read from Motor and Blower Specifications table, A = Motor to blower centre point ( 623 mm ) x 2 = 1,246 mm B = Motor pulley diameter ( 6.5 or mm ) + Blower pulley diameter ( 12 or mm) = mm Belt size = A + B pi / 2 Summary = mm or 78.1 in 78 in i) Fan Motor kw = 4kW ii) Motor Pulley Diameter iii) V-Belt Size = 6.5 in = 78 in 16

18 Motor And Blower Specifications For 50Hz Models Description Unit MDB125B MDB150B2/ B1 Models MDB200B2/B1 MDB250B2/B1 MDB300B3/ B2 MDB350B3 Motor kw kw RPM Motor pulley size in 1 SPZ/80/1210/24 1 SPZ/80/1210/24 2 SPZ/80/1210/28 2 SPZ/90/1610/28 2 SPZ/95/1610/28 2 SPZ/125/1610/38 Motor shaft size mm Blower pulley size in 1 SPZ/160/1610/25 1 SPZ/160/1610/25 2 SPZ/140/1610/25 2 SPZ/180/2012/25 2 SPZ/180/2012/25 2 SPZ/250/2012/25 Blower shaft size mm Air flow CFM Horizontal air discharge Motor to blower centre point mm V-Belt size in SPZ1060 SPZ1060 SPZ1000 SPZ1650 SPZ1650 SPZ2287 Vertical air discharge Motor to blower centre point mm V-Belt size in SPZ1080 SPZ1080 SPZ1010 SPZ1700 SPZ1700 SPZ2360 Description Unit Models MDB400B4/ B2 MDB450 B3 MDB500B4 /B2 MDB600B4 /B3 MDB750B5 /B3 MDB125C MDB150C1 Motor kw kw RPM Motor pulley size in 2 SPA/106/1610/38 2 SPA/112/1610/38 2 SPA/150/2012/42 3 SPA/132/2012/42 3 SPA/140/2517/42 1SPZ/85/1210/24 2SPZ/71/1108/28 Motor shaft size mm Blower pulley size in 2 SPA/250/2517/35 2 SPA/250/2517/35 2 SPA/315/2517/35 3 SPA/400/3020/40 3 SPA/400/3020/40 1SPZ/160/1610/25 2SPZ/125/1610/25 Blower shaft size mm Air flow CFM Horizontal air discharge Motor to blower centre point mm V-Belt size in SPA2060 SPA2060 SPA2182 SPA1507 SPA1507 SPZ 760 SPZ 670 Vertical air discharge Motor to blower centre point mm V-Belt size in SPA2160 SPA2160 SPA2270 SPA1850 SPA

19 Blower performance curves Model: MDB 075B / BR (Double Blowers) Model: MDB 100B / BR (Double Blowers) 18

20 Blower Performance Curves Model: MDB 125B, 150B2, 150B1/BR1, 200B2/BR2, 125C/CR, 150C2/CR2, 150C1 Model: MDB 250B2/BR2, 300B3/BR3, 350B3/BR3 19

21 Blower Performance Curves Model: MDB 400B4/BR4, 450B3, 500B4/BR4 Model: MDB 600B4, 750B5 20

22 Outlines and dimensions (indoor) Model: MDB 075/ 100 B/BR Model: MDB 125B/BR (Convertible Horizontal / Vertical Air Discharge) 21

23 Model: MDB 125C (Horizontal Air Discharge Only) Model: MDB 150B1 (Convertible Horizontal / Vertical Air Discharge) 22

24 Model: MDB 150B2/BR2 (Convertible Horizontal / Vertical Air Discharge) Model: MDB 150C1 (Horizontal Air Discharge Only) 23

25 Model: MDB 200B2/BR2 (Convertible Horizontal / Vertical Air Discharge) Model: MDB 250/300 B2/BR2 (Convertible Horizontal / Vertical Air Discharge) 24

26 Model: MDB 300B3/BR3 (Convertible Horizontal / Vertical Air Discharge) Model: MDB 350B3/BR3 (Convertible Horizontal / Vertical Air Discharge) 25

27 Model: MDB 400 / 500 B4/BR4 (Convertible Horizontal / Vertical Air Discharge) Model: MDB 600B4 (Convertible Horizontal / Vertical Air Discharge) 26

28 Model: MDB 750B5 (Convertible Horizontal / Vertical Air Discharge) 27

29 Outlines and dimensions (outdoor) Model: MMC 075B, 100/125 B/BR (Standard Vertical Air Discharge) Model: MMC 075B, 100/125 B/BR (Optional Horizontal Air Discharge) 28

30 Model: MMC 075C/CR Model: MMC 100C 29

31 Model: MMC 150C 30

32 Wiring diagrams (heat pump) Indoor (Export) Model : MDB 075/100BR (C3.0B) Model : MDB 125CR (Export) 31

33 Model : MDB 150/ 200/ 250 BR2 (Export) Model : MDB 300/ 350 BR3 (Export) 32

34 Model : MDB 400/ 500 BR4 (Export) 33

35 Wiring diagrams (heat pump) Outdoor (Export) Model : MMC 075CR / 100BR (for sequential controller) Note : - With auto pressure control DANFOSS magnetic contactor - Headline outdoor fan motor (single phase) Model : MMC 125BR (Export) (for sequential controller) Note : - With auto pressure control DANFOSS magnetic contactor - Headline outdoor fan motor 34

36 Indoor to Outdoor Wiring Diagram (heat pump) Model : MMC 075CR / 100BR/ 125BR (Outdoor) & MDB 075 / 100BR / 125CR (Indoor) Model : MMC 075CR / 100BR/ 125BR (Outdoor) & MDB 150 / 200 / 250BR2 / 300BR3 / 350BR3 / 400BR4 / 500BR4 (Indoor) 35

37 Wiring Diagram (cooling) Model : MDB 075B MMC 075C Symbol Description DOL Direct on line BM Blower motor 51 BM Blower motor overload relay SW Switch AUX. Auxiliary control TH Thermostat control TDR Time delay relay Important note : A manual reset circuit must be provided at the field supplied external starter board for all protective devices. Note : For export spec. 36

38 Model : MDB 075B/100B MMC 075B/100B/100C Symbol Description DOL Direct on line BM Blower motor 51 BM Blower motor overload relay SW Switch AUX. Auxiliary control TH Thermostat control TDR Time delay relay Important note : A manual reset circuit must be provided at the field supplied external starter board for all protective devices. Note : For export spec. 37

39 Model : MDB 125B MMC 125B MDB 150B2 MMC 075B X 2 Symbol Description DOL Direct on line BM Blower motor 51 BM Blower motor overload relay SW Switch AUX. Auxiliary control TH Thermostat control TDR Time delay relay Important note : A manual reset circuit must be provided at the field supplied external starter board for all protective devices. Note : For export spec. 38

40 Model : MDB 150B1 MMC 150C Symbol Description DOL Direct on line BM Blower motor 51 BM Blower motor overload relay SW Switch AUX. Auxiliary control TH Thermostat control TDR Time delay relay Important note : A manual reset circuit must be provided at the field supplied external starter board for all protective devices. Note : For export spec. 39

41 Model : MDB 200B2 MMC 100B X 3 MDB 250B2 MMC 125B X 2 MDB 300B3 MMC 100B X 3 MDB 350B3 MMC 125B X 2, MMC 100B MDB 400B4 MMC 100B X 4 MDB 500B4 MMC 125B X 4 Symbol Description DOL Direct on line BM Blower motor 51 BM Blower motor overload relay SW Switch AUX. Auxiliary control TH Thermostat control TDR Time delay relay Important note : A manual reset circuit must be provided at the field supplied external starter board for all protective devices. Note : For export spec. 40

42 Model : MDB 300B2 MMC 150C x 2 MDB 450B3 MMC 150C x 3 MDB 600B4 MMC 150C x 4 MDB 750B5 MMC 150C x 5 Symbol Description SDS Star delta starter BM Blower motor 51 BM Blower motor overload relay SW Switch AUX. Auxiliary control TH Thermostat control TDR Time delay relay Important note : A manual reset circuit must be provided at the field supplied external starter board for all protective devices. Note : For export spec. 41

43 Model : MDB 075B MMC 075C Important note : A manual reset circuit must be provided at the field supplied external starter board for all protective devices. Note : 1) For export spec. 2) With SLM C3.0B CCT 42

44 Model : MDB 075B MMC 075B MDB 100B MMC 100B / 100C Important note : A manual reset circuit must be provided at the field supplied external starter board for all protective devices. Note : 1) For export spec. 2) With SLM C3.0B CCT 43

45 Model : MDB 150 / 200 / 250 / 300 B2 Important note : 1) For export spec 2) With sequential controller Model : MDB 300 / 350 / 450 B3 Important note : 1) For export spec 2) With sequential controller 44

46 Model : MDB 400 / 500 / 600 B4 Important note : 1) For export spec 2) With sequential controller 45

47 Model : MDB 075B MMC 075B MDB 100B MMC 100B MDB 100B MMC 100C Symbol Description DOL Direct on line BM Blower motor 51 BM Blower motor overload relay FM Fan motor 51 FM Fan motor overload relay A/ T Auto transformer COMP. Compressor 51 COMP. Compressor auto trans. starter SW Switch AUX. Auxiliary control TH Thermostat control TDR Time delay relay Important note : A manual reset circuit must be provided at the field supplied external starter board for all protective devices. Note : For local spec. 46

48 Model : MDB 125B MMC 125B MDB 150B2 MMC 075 X 2 Symbol Description DOL Direct on line BM Blower motor 51 BM Blower motor overload relay FM Fan motor 51 FM Fan motor overload relay A/ T Auto transformer COMP. Compressor 51 COMP. Compressor auto trans. starter SW Switch AUX. Auxiliary control TH Thermostat control TDR Time delay relay Important note : A manual reset circuit must be provided at the field supplied external starter board for all protective devices. Note : For local spec. 47

49 Model : MDB 200B2 MMC 100B X 2 MDB 250B2 MMC 125B X 2 MDB 300B3 MMC 100B X 3 MDB 350B3 MMC 125B X 2, MMC 100B X 1 MDB 400B4 MMC 100B X 4 MDB 500B4 MMC 125B X 4 Symbol Description DOL Direct on line BM Blower motor 51 BM Blower motor overload relay FM Fan motor 51 FM Fan motor overload relay A/ T Auto transformer COMP. Compressor 51 COMP. Compressor auto trans. starter SW Switch AUX. Auxiliary control TH Thermostat control TDR Time delay relay Important note : A manual reset circuit must be provided at the field supplied external starter board for all protective devices. Note : For local spec. 48

50 Model : MDB 075B MMC 075C Symbol Description DOL Direct on line BM Blower motor 51 BM Blower motor overload relay FM Fan motor 51 FM Fan motor overload relay A/ T Auto transformer COMP. Compressor 51 COMP. Compressor auto trans. starter SW Switch AUX. Auxiliary control TH Thermostat control TDR Time delay relay Important note : A manual reset circuit must be provided at the field supplied external starter board for all protective devices. Note : For local spec. 49

51 Model : MDB 150B1 MMC 150C Symbol Description DOL Direct on line BM Blower motor 51 BM Blower motor overload relay FM Fan motor 51 FM Fan motor overload relay A/ T Auto transformer COMP. Compressor 51 COMP. Compressor auto trans. starter SW Switch AUX. Auxiliary control TH Thermostat control TDR Time delay relay Important note : A manual reset circuit must be provided at the field supplied external starter board for all protective devices. Note : For local spec. 50

52 Model : MDB 300B2 MMC 150C X 2 MDB 450B3 MMC 150C X 3 MDB 600B4 MMC 150C X 4 MDB 750B5 MMC 150C X 5 Symbol Description DOL Direct on line BM Blower motor 51 BM Blower motor overload relay FM Fan motor 51 FM Fan motor overload relay A/ T Auto transformer COMP. Compressor 51 COMP. Compressor auto trans. starter SW Switch AUX. Auxiliary control TH Thermostat control TDR Time delay relay Important note : A manual reset circuit must be provided at the field supplied external starter board for all protective devices. Note : For local spec. 51

53 Model : MDB 075B MMC 075C Symbol Description DOL Direct on line BM Blower motor 51 BM Blower motor overload relay FM Fan motor 51 FM Fan motor overload relay A/ T Auto transformer COMP. Compressor 51 COMP. Compressor auto trans. starter SW Switch AUX. Auxiliary control TH Thermostat control TDR Time delay relay Important note : A manual reset circuit must be provided at the field supplied external starter board for all protective devices. Note : 1) For local spec. 2) With SLM C3.0B CCT 52

54 Model : MDB 075B MMC 075B MDB 100B MMC 100B MDB 100B MMC 100C Symbol Description DOL Direct on line BM Blower motor 51 BM Blower motor overload relay FM Fan motor 51 FM Fan motor overload relay A/ T Auto transformer COMP. Compressor 51 COMP. Compressor auto trans. starter SW Switch AUX. Auxiliary control TH Thermostat control TDR Time delay relay Important note : A manual reset circuit must be provided at the field supplied external starter board for all protective devices. Note : 1) For local spec. 2) With SLM C3.0B CCT 53

55 Installation (indoor) Preliminary Site Survey a) Electrical supply and installation is to confirm to local authority s (e.g. National Electricity Board) codes and regulations. b) Voltage supply fluctuation must not exceed +/- 10% of rated voltage. Electricity supply line must be independent of welding transformers which can cause supply fluctuation. c) Ensure that the location is convenient for wiring and piping. Mounting a) For ceiling mounted models, locate a position where piping and ducting work can be kept to a minimum. Ensure that overhead supports are strong enough to hold the unit s weight. Position hanger rods and check for alignment with the unit. Check that hangers are secure and that the base of fan-coil unit is level in two horizontal directions. Pipings Do not use contaminated or damaged copper tubings. If pipings, evaporator or condenser are exposed or had been opened for 15 seconds or more, vacuum and purge with field supplied refrigerant. Generally, do not remove plastic/rubber plugs/caps from fittings, tubings and coils until ready to connect suction or liquid line into fittings. Operational Check After all electrical wiring is completed and the system is charged with refrigerant, make sure unit is operating properly. Check that: a) Condenser fans are running, with warm air blowing off the condenser coil. b) Evaporator blowers are running and discharging cool air. c) Suction line inside condensing unit feels cool. d) Liquid line inside condensing unit feels warm. Electrical Connection As wiring regulations differ from country to country, please refer to your LOCAL ELECTRICAL CODES for field wiring regulations and ensure that these are complied with. Besides, observe the following general precautions: a) Ensure that the rated voltage of the unit corresponds to that of the name plate before commencing wiring work. b) Provide a power outlet to be used exclusively for each unit. A power supply disconnect and a circuit breaker for over-current protection should be provided in the exclusive line. c) The unit must be GROUNDED to prevent possible hazard due to insulation failure. d) All wiring must be firmly connected. e) Electrical wiring must not touch the refrigerant piping, compressor and any moving parts of the fan motors. 54

56 Installation (outdoor) Location For Installation Of The Condensing Units As condensing temperature rises, evaporating temperature rises and cooling capacity drops. In order to achieve maximum cooling capacity, the location selected should fulfill the following requirements:- a) 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). Allow sufficient space for maintenance around the unit. 55

57 b) Ensure that there is no obstruction of air flow into or out of the unit. Remove obstacle which block air intake or discharge. c) The location must be well ventilated, so that the unit can draw and distribute plenty of air thus lowering the condensing temperature. d) A place capable of bearing the weight of the outdoor unit and isolating noise and vibration. e) A place protected from direct sunlight. Otherwise use an awning for protection, if necessary. f) A place where the hot air discharge and operating sound level will not annoy the neighbors. g) The location must not be susceptible to dust or oil mist. CAUTION: If the condensing unit is operated in an atmosphere containing oils (including machine oils), salt (coastal area), sulphide gas (near hot spring, oil refinery plant), such substances may lead to failure of the unit. 56

58 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 the 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. c) Field supplied sight glass must be assembled and mounted as shown in the figure. Maximum Pipe Length And Maximum Number Of Bends When the pipe is too long, the required refrigerant quantity increases. Both the capacity and reliability drops as a result. As the number of bends increases, system piping resistance to the refrigerant flow increases, thus lowering the cooling capacity and the compressor may become defective. If the height difference between the evaporator and the condenser is excessive, the cooling capacity drops, the lubricating oil return is retarded, affecting the compressor efficiency adversely. Always choose the shortest piping path and follow the recommendations as shown below : Model Max. Elevation, m (ft.) Max. Total Length, m (ft.) Max. of Bends MMC 075B 20(65.6) 35(115) 8 MMC 100B/BR 20(65.6) 35(115) 8 MMC 125B/BR 20(65.6) 35(115) 8 MMC 075C/CR 20(65.6) 35(115) 8 MMC 100C 20(65.6) 35(115) 8 MMC 150C 20(65.6) 35(115) 8 CAUTION: 1) Our guarantee on the performance of our air-conditioners is strictly revoked if the height, length and/or the number of bends of the refrigerant piping system installed is beyond the limit above. 2) Bendings must be carefully made so as not to crush the pipe. Use a pipe bender to bend a pipe as far as possible. Maximum Allowable Piping Length & Elevation Difference 57

59 Installation Clearance A) For MMC B/BR series (Single/Multiple Condensing Unit) When two or more outdoor units are installed in a location, they must be positioned such that one unit will not be taking the hot discharge air from another. This also applies when two or more units are installed one above the other. The units must all face the same direction or opposite direction (back to back), such that hot air short circuit does not occur. Model MMC 075B MMC 100B/BR MMC 125B/BR 2 X MMC 075B 2 X MMC 100B/BR A (mm) B (mm) C (mm) 1,200 1,200 1,200 1,500 1,500 Model 2 X MMC 125B/BR 3 X MMC 100B/BR MMC 100B/BR + 2 X MMC 125B/BR 4 X MMC 100B/BR 4 X MMC 125B/BR A (mm) 700 1,000 1,000 1,000 1,000 B (mm) C (mm) 1,500 2,000 2,000 2,000 2,000 58

60 B) For MMC C/CR series Model MMC 075C/CR MMC 100C MMC 150C A (mm) 1,200 1,200 1,200 B (mm) C (mm) MMC 075C/CR / 100C MMC 150C Vacuuming And Charging Vacuuming is necessary to eliminate all moisture and air from the system. The Series II Condensing Unit is provided with Quik Lok fittings and charging nipples. Vacuuming After the system pipings are properly connected, connect the flexible hoses to the correct charging nipples as shown in the diagrams. Ensure that flexible hose from charging nipples are connected to vacuum pump via standard servicing valves and pressure gauges (gauge manifold). Vacuum the air conditioner system to at least 500 microns Hg. Charging Before charging, the vacuum must be held at 500 microns Hg for at least 15 minutes, then break vacuum by charging R-22 refrigerant. Operate the unit for 15 minutes and ensure that refrigerant charges is of correct quantity by monitoring running current and suction and liquid line pressures. Suction and discharge pipe pressures should be in the region of 75 psig and 275 psig generally. After ensuring the system is correctly charged, remove flexible hose from charging nipples and replace caps. 59

61 Servicing and maintenance 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. However, if a unit is installed in area subjected to much oil, mist and dust, the coil must be regularly cleaned by qualified Air Conditioner Service Technicians to ensure sufficient heat exchange and proper operation. Otherwise, the systems life span might be shortened. CAUTION When the compressor is to be stopped for a long time, the crankcase heater should be energized for at least 6 hours before start of operation. Do not charge OXYGEN, ACETYLENE or other flammable and poisonous gases into the refrigeration cycle when performing a leakage test or an airtight-test. These types of gases are extremely dangerous, because explosion can occur. It is recommended that nitrogen or refrigerant be charged for these types of tests. Caution For Use Bear the following points in mind to safeguard against malfunction and breakdown. Do not stick rods or other objects through the air outlet during operation since this may result to damage or injury The air conditioner must not re-start within 3 minutes after shutdown. (These models are equipped with a crankcase heater with the compressor). Make sure the air conditioner is properly grounded by checking the ground terminal. Maintenance For superb performance and lasting durability, please do not forget to conduct proper and regular maintenance. Cleaning The Outdoor Unit Heat Exchanger If you use your air conditioner for prolonged period of time, the outdoor unit heat exchanger will become dirty impairing its function and reducing the performance of the air conditioned. Consult your local dealer about the cleaning of the heat exchanger. 60

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