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Lennox CMC 020S, Installation, Operating And Maintenance Manual, Page: 1 / 36

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lennoxemeia.com

COMPACTAIR

CMC - CMH

Installation, 
operating
and maintenance 
manual

Vertical packaged air conditioner
Packaged unit

20 

à

 100 kW

MIL123E-0613 11-2014 

Translation of original manual

Summary of Contents for CMC 020S

Page 1: ...lennoxemeia com COMPACTAIR CMC CMH Installation operating and maintenance manual Vertical packaged air conditioner Packaged unit 20 100 kW MIL123E 0613 11 2014 Translation of original manual...

Page 2: ...IRST INSTALLATION 4 1 PREVENTIVE MAINTENANCE 4 2 CORRECTIVE MAINTENANCE 4 3 FAILURE DIAGNOSIS Lennox have been providing environmental solutions since 1895 our COMPACTAIR range continues to meet the s...

Page 3: ...ations without notice We reserve the right to modify our products without notice without obligation to modify previously supplied goods These operating instructions contain useful and important inform...

Page 4: ...COOLING CYCLE Air intake temperature to the outdoor coil Air output temperature to the outdoor coil High pressure Low pressure circuit 1 circuit 2 circuit 1 circuit 2 Air intake temperature to the out...

Page 5: ...8 4 8 4 8 6 48 8 6 18 99 27 04 29 39 33 85 40 6 53 28 58 4 67 28 83 56 89 8 100 4 107 7 142 6 157 5 126 6 136 7 176 200 5 1 GENERAL CHARACTERISTICS 1 1 PHYSICAL DATA Unit COMPACTAIR C Cooling only H H...

Page 6: ...ION INDOOR TEMPERATURE 32 C BS 23 C WH 21 C BS 15 CWH OUTDOOR TEMPERATURE 45 C 020 025 030 045 055 47 C 035 040 070 085 0 C STANDARD UNITS 15 C HEATING CYCLE OPERATION INDOOR TEMPERATURE 27 C DB 15 C...

Page 7: ...7550 196 158 122 86 50 8150 175 136 97 58 21 9050 136 94 53 10 n a 045D rpm 937 888 838 788 738 m3 h 7950 272 227 183 140 97 8675 249 201 155 109 63 9400 171 121 72 23 9750 103 51 1 055D rpm 837 792 7...

Page 8: ...23 279 236 196 157 18875 310 264 221 180 140 20400 296 248 204 162 121 22450 178 133 90 020S rpm 1177 1126 1075 1024 974 m3 h 3150 377 342 309 278 247 3425 373 338 306 273 243 3700 369 334 302 269 239...

Page 9: ...586 512 442 376 311 9050 570 493 421 351 283 045D rpm 1250 1183 1117 1051 985 m3 h 7950 589 515 446 381 317 8675 578 501 430 363 295 9400 562 485 411 340 270 9750 553 475 400 326 255 055D rpm 1339 126...

Page 10: ...230 25 29 32 39 31 35 40 47 38 44 50 54 055D 070D 085D 9950 10825 11700 12850 12450 13550 14650 15090 14000 15125 16250 16725 11 13 16 19 18 21 24 26 22 26 30 32 123 136 150 169 162 181 200 208 188 2...

Page 11: ...41 209 191 171 146 125 709 189 171 152 126 105 677 168 151 132 107 87 645 148 131 112 88 68 613 128 111 92 69 50 rpm m3 h 040S 8200 9350 10525 11700 12500 741 205 188 170 148 709 185 168 150 128 110 6...

Page 12: ...r Fan motor Coil Coil OPTION ELEMENT Scroll compressor Scroll compressor Fan Coil Expansion valve Expansion valve Filter drier Filter drier Fan motor Coil Pressure gauge 5 16 to be tted by the install...

Page 13: ...e Expansion valve Filter drier Filter drier Fan motor Coil Fan motor Coil Pressure gauge 5 16 to be tted by the installer Discharge sensor Low pressure transducer circuit 1 Low pressure transducer cir...

Page 14: ...r Fan motor Coil Coil Check valve Expansion valve Check valve Coil Fan motor Coil Fan Expansion valve Filter drier Check valve Expansion valve Check valve Expansion valve Filter drier Check valve Expa...

Page 15: ...lve Expansion valve Filter drier Suction accumulator Long distance connection option Check valve Expansion valve Check valve Pressure gauge 5 16 to be tted by the installer Discharge sensor Low pressu...

Page 16: ...1 9 UNIT DIMENSIONS Power supply cable entry Electrical box External drainage 3 4 thread MODELS A BOX B BOX SPLIT STANDARD HORIZONTAL DISCHARGE SPLIT OPTIONAL VERTICAL DISCHARGE MODELS A BOX B BOX Ba...

Page 17: ...OR UNIT SECTION OF FLEXIBLE DUCT TO BE INSTALLED BY THE CUSTOMER 2660 x 1054mm2 OUTDOOR AIR DAMPER MIXING SECTION DISCHARGE FRAME 490x508x40 EXHAUST FAN OPTION RETURN AIR An exhaust fan may be include...

Page 18: ...ed on the oor ensure that the position is not subject to ooding When positioning the unit be sure that the Rating Plate is always visible since this data will be necessary to ensure correct maintenanc...

Page 19: ...s diameter to modify the air ow of the unit as required 1 Fixed part 2 Mobil part 3 Fixing screw CLOSE PULLEY To increase the fan ow turn the mobile part in direction B Clock wise OPEN PULLEY To reduc...

Page 20: ...rea where the heat pump unit is to be installed is low or the cycle functioning are too long it may necessary to install an electrical heater below the likely coils on the drip tray which avoids the c...

Page 21: ...and antivibrating material to avoid the vibrations being transmitted to the structure of the building 2 6 DRAINS All the indoor and outdoor sections of these units have a 3 4 steel threaded drain pipe...

Page 22: ...ELECTRICAL DIAGRAM SUPPLIED WITH THE UNIT POWER SUPPLY VOLTAGE OPERATING LIMITS 342 462V COMPONENT DS Discharge sensor STANDARD 2 x 1 mm shielded OS Outdoor sensor STANDARD 2 x 1 mm shielded AS Remot...

Page 23: ...22 2 INSTALLATION 2 7 ELECTRICAL CONNECTIONS COMFORT AND SERVICE TERMINAL...

Page 24: ...n the system In order to drain the system check that drain valves have been installed at all low points of the system MS INDOOR UNIT EF IU MS IU RS MS IU EF EF Exhaust fan MS Mixing section RS Return...

Page 25: ...d 5x1 Shielded ELECTRICAL BOX DS Discharge sensor OS Outdoor sensor AS Remote ambient sensor RS Duct sensor RS HR T Duct remote sensor CO2 CO2 Air quality probe DPT Air differential pressure transduce...

Page 26: ...AIR DUCT DISCHARGE AIR RETURN SECTION AIR FILTER 5x1 Shielded 2x1 Shielded 2x1 Shielded 5x1 Shielded 3x1 Shielded 3x1 Shielded 2x1 Shielded ELECTRICAL BOX MIXING SECTION DM Damper actuator RFM Return...

Page 27: ...RIAL CARD Cable c section mm2 two wire S12E racing from min 0 2 a max 2 5 mm2 AWG 20 22 1000m max Connect a 120 1 4 W terminating resistor MODBUS only SERIAL CARD SERIAL CARD SERIAL CARD SERIAL CARD C...

Page 28: ...panel display will not light Check with your hand that the fans are turning freely FIGURE FOR THE STANDARD UNIT CONFIGURATION FOR MODELS 055D 070D 085D 3 COMMISSIONING AND OPERATION Legislation does...

Page 29: ...t The solution is to disconnect reverse two of the phases and connect again ASTP Protection is included with the unit compressors See Fault diagnosis for more information WITH OPERATING UNIT CHECK Low...

Page 30: ...Refrigerating circuit s After more than 12 hours of power cut the cranckcase heater compressor should be powered for 5 hours before any return to service Non compliance with this instruction can cause...

Page 31: ...ways use original replacement parts If the component can be isolated it is not necessary to remove the entire refrigerant charge if the component cannot be isolating and the refrigerant charge is remo...

Page 32: ...arge lines Remove the securing screws and replace the old compressor with the new one Check that the new compressor has the correct oil charge screw it to the base and connect the lines and electrical...

Page 33: ...f necessary Check for voltage and inspect the motor turbine and replace if necessary Reverse the power phases Correct leak create vacuum and charge Inspect and clean Inspect and correct or change the...

Page 34: ...33 NOTES...

Page 35: ...34 NOTES...

Page 36: ...EMBOURG FRANCE GERMANY ITALY NETHERLANDS POLAND PORTUGAL Due to Lennox s ongoing commitment to quality the speci cations ratings and dimensions are subject to change without notice and without incurri...

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