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Lennox ASC Series Installation, Operating And Maintenance Manual

Air cooled condensing unit
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INSTALLATION, OPERATING
AND MAINTENANCE
AIR COOLED CONDENSING UNIT
ASC/ASH
20 - 230 kW
MIL152E-1217 01/2019
www.lennoxemea.com

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  Summary of Contents for Lennox ASC Series

  • Page 1 INSTALLATION, OPERATING AND MAINTENANCE AIR COOLED CONDENSING UNIT ASC/ASH 20 - 230 kW MIL152E-1217 01/2019 www.lennoxemea.com...
  • Page 2: Table Of Contents

    All the technical and technological information contained in this manual, including any drawings and technical descriptions provided by us, remain the property of Lennox and must not be utilised (except in the operation of this product), reproduced, issued to or made available to third parties without the prior written agreement of Lennox.
  • Page 3 • 2 • Installation, Operation and Maintenance manual • ASC/ASH-MIL152E-1217-01/2019...
  • Page 4: Points To Bear In Mind

    All technical data contained in these operating instructions, including the diagrams and technical description remains the property of Lennox and may not be used (except for the purpose of familiarizing the user with the equipment), reproduced, photocopied, transferred or transmitted to third parties without prior written authorization from Lennox.
  • Page 5 DATA PAGE FOR UNIT COMMISSIONING UNIT: ___________________________________________ SERIAL NUMBER : ___________________________________ CONTROL PANEL IDENTIFICATION CODE : _________________________________________________________________ INSTALLATION ADDRESS: _______________________________________________________________________________ INSTALLER : _____________________________________ INSTALLER TEL : ____________________________________ INSTALLER ADDRESS : __________________________________________________________________________________ ______________________________________________________________________________________________________ COMMISSIONING DATE : ________________________________________________________________________________ CHECKS : _____________________________________________________________________________________________ ______________________________________________________________________________________________________ SUPPLY VOLTAGE : _______________________________ RATED VOLTAGE OF THE UNIT : _______________________ Unit on shock absorbers...
  • Page 6: General Characteristics

    1. GENERAL CHARACTERISTICS 1.1.- PHYSICAL DATA Air cooled C: Cooling only S: One Circuit Type of refrigerant M: 400V/3/50 condensing unit H: Heat pump D: Two Circuits M: R-410A S: Outdoor unit Split Approximate cooling - - - Number capacity in kW of revision Units valid for combine with air treatment units ASC/ADC: Cooling only unit R-410A.
  • Page 7: Electrical Data

    1. GENERAL CHARACTERISTICS 1.2.- ELECTRICAL DATA ELECTRICAL CONSUMPTION FOR STANDARD UNITS MODELS 020S 025S 030S 035S 040S 045D 055D ASC/ASH 3N~400V Voltage Ph/V/Hz 3~400V 50Hz 50Hz Maximum absorbed power (kW) Compressor 8,25 10,1 11,8 15,6 16,9 20,2 23,6 0,69 0,69 0,84 0,84 1,38...
  • Page 8: Fan Performance

    1. GENERAL CHARACTERISTICS 1.3.- FAN PERFORMANCES 1.3.1.- CONDENSING UNIT WITH AVAILABLE HIGH PRESSURE FAN (OPTION) Air fl ow data / FP1 option / Low speed. MODELS 100D - 120D - 140D 200D 230D Axial “short case” - direct coupling Fan type 900 r.p.m.
  • Page 9: Piping Drawings

    1. GENERAL CHARACTERISTICS 1.5.- PIPING DRAWINGS COOLING ONLY UNITS AIR TREATMENT UNIT. EXAMPLE CONDENSING UNIT ASC 020S/025S/030S/035S/040S Fan motor Scroll compressor LPT1 HPT1 Coil Coil Suction accumulator (long distance connection option). SVL1 Expansion valve Filter drier Service valve option (ELEMENTO OPCIONAL) OPTION ELEMENT CONDENSING UNIT AIR TREATMENT UNIT.
  • Page 10 1. GENERAL CHARACTERISTICS 1.5.- PIPING DRAWINGS COOLING ONLY UNITS AIR TREATMENT UNIT. EXAMPLE CONDENSING UNIT ASC 100D/120D/140D Scroll compressor Fan motor LPT1 HPT1 Coil Coil Scroll compressor Suction accumulator (Low ambient -15ºC and low noise level option). Expansion valve Filter drier Service valve option Scroll compressor LPT2...
  • Page 11 1. GENERAL CHARACTERISTICS 1.5.- PIPING DRAWINGS COOLING ONLY UNITS CONDENSING UNIT ASC 200-230D Fan motor Scroll compressor LPT1 HPT1 Service valve (option) Coil Service valve (option) Fan motor LPT2 HPT2 Service valve (option) Coil Service valve (option) OPTION ELEMENT Pressure gauge (5/16” to be fi tted by the installer) Crankcase heater (0°C Low ambient option) CH...
  • Page 12 1. GENERAL CHARACTERISTICS 1.5.- PIPING DRAWINGS HEAT PUMP UNITS CONDENSING UNIT AIR TREATMENT UNIT. EXAMPLE ASH 020S/025S/030S/035S/040S Fan motor 4-way LPT1 HPT1 Scroll compressor valve Coil Coil Suction accumulator (Remote connection option) Suction accu- Filter mulator SVL1 SVL2 drier Filter drier Expansion valve Expansion valve Check valve...
  • Page 13 1. GENERAL CHARACTERISTICS 1.5.- PIPING DRAWINGS HEAT PUMP UNITS CONDENSING UNIT AIR TREATMENT UNIT. EXAMPLE UNIDAD INTERIOR UNIDAD EXTERIOR CIH 100D/120D/140D ASH 100D/120D/140D Fan motor Scroll compressor LPT1 HPT1 4-way valve Coil Coil Scroll compres- Suction accumulator (Long distance connection option) Suction accu- Filter...
  • Page 14 1. GENERAL CHARACTERISTICS 1.5.- PIPING DRAWINGS HEAT PUMP UNITS CONDENSING UNIT ASH 200-230D Service valve (option) Fan motor Scroll compressor LPT1 HPT1 4-way valve Check valve Coil Scroll compressor Suction accumulator Service valve Filter drier (option) Expansion valve Check valve Service valve (option) Fan motor...
  • Page 15 1. GENERAL CHARACTERISTICS 1.6.- DIMENSIONS OF ASC/ASH/ADC/ADH UNIT 020S 025S/030S/035S/040S Main switch (option) Main switch Electrical box (optional) 1635 Power supply cable Access to gas and entry liquid lines 1 1 9 6 6 0 Access to gas and liquid 1 1 9 5 lines 9 8 0...
  • Page 16: Preliminary Preparations

    If there is damage, the unit may be rejected by notifying the LENNOX Distribution Department and stating why the machine is unacceptable on the transport agent’s delivery note. Any later complaint or claim made to the LENNOX Distribution Department for this type of damage cannot be considered under the Guarantee.
  • Page 17: Unit Location

    2. INSTALLATION 2.3.- UNIT LOCATION - The bedplate is made up of metal sections, capable of withstanding the weight of the unit. - If the unit is fl oor mounted, then the profi les should be isolated with shock absorbing material such as anti-vibration units or pads. Bear in mind that the fans rotate at approximately 850 rpm.
  • Page 18 2. INSTALLATION INSTALLATION CLEARANCES DETAILING AVM POSITIONS 2250 ASC/ASH 100D/120D/140D 14 ASC/ASH 200D/230D 14 2250 (*) Clearance around the unit. Size in mm. 2.5.- INDOOR LOCATION Air outlet Air outlet duct (2) Unit Air inlet Auxiliary drip tray (heat pump unit) In heat pump units with double circuits and cooling units 100D-140D only, if only one duct is going to be installed, a regulated pressure damper should be installed for each fan, to...
  • Page 19: Refrigerant Connections

    2. INSTALLATION 2.6- REFRIGERANT CONNECTIONS The unit is supplied with the gas and liquid lines sealed with copper caps out- Refrigerant pipe Copper cap lines side the casing with possibility to install pipe lines (unless the unit is supplied with the factory precharged refrigerant kit (option) or service valves kit (option). Brazing Standard units are fi...
  • Page 20 2. INSTALLATION 2.6- REFRIGERANT CONNECTIONS To locate outdoor and indoor units, refer to the following information: OUTDOOR UNIT POSITION A: A siphon suction must be installed in the vertical part of the gas line, and siphons must be installed every 8 meters in the rising section. The minimum suction speed must not be below 6m/s.
  • Page 21 2. INSTALLATION 2.6- REFRIGERANT CONNECTIONS For units with 2 circuits, please be sure to connect indoor unit circuits C1 and C2 to the corresponding C1 and C2 circuits of the outdoor unit. Note : MODELS 100D and 120D USE DIFFERENT SIZES OF PIPE CONNECTIONS : LARGE SIZE FOR CIRCUIT 1 AND SMALL SIZE FOR CIRCUIT 2.
  • Page 22 2. INSTALLATION 2.6- REFRIGERANT CONNECTIONS TABLE 3.1 : REFRIGERANT CHARGE Charge of refrigerant (gr) R-410A for 0 meters of line (Cooling only) ASC + Air T. Unit 020S 025S 030S 035S 040S 045D 055D 070D 085D 100D 120D 140D 200D 230D 5155 5315...
  • Page 23: Electrical Connections

    2. INSTALLATION 2.7.- ELECTRICAL CONNECTIONS - BEFORE MAKING ANY ELECTRICAL CONNECTIONS, ENSURE THAT ALL CIRCUIT BREAKERS ARE OPEN. - IN ORDER TO MAKE THE ELECTRICAL CONNECTIONS, FOLLOW THE ELECTRICAL DIAGRAM SUPPLIED WITH THE UNIT. Air treatment unit. Example INDOOR SECTION DADS HR/T LDRP...
  • Page 24 2. INSTALLATION 2.7.- ELECTRICAL CONNECTIONS POWER SUPPLY Power supply Power supply with Power supply Free-cooling Exhaust fan Return fan electrical heater 1’ 020S 5G x 4 mm² 5G x 16 mm² 025S 4G x 6 mm² 4G x 16 mm² 030S 4G x 1,5 mm²...
  • Page 25: Dry Contact Board Control

    2. INSTALLATION 2.7.- ELECTRICAL CONNECTIONS COMFORT AND SERVICE TERMINAL CONNECTION 2.8.- DRY CONTACT BOARD CONTROL The AIRCOOLAIR condensing unit can be remotely controlled via dry contacts on the BM60 and BE60. The expansion board BE60 is an additional board fi xed on DIN rail. This board is supplied in stand on AIRCOOLAIR condensing unit.
  • Page 26: Options Installation

    2. INSTALLATION 2. INSTALLATION 2.9 - OPTIONS INSTALLATION COMMUNICATION CAPABILITIES 1. BMS MODBUS_RS485 or TCP/IP connection. 2. BMS LONWORKS_Echelon connection. 3. BMS BACnet - RS485 or TCP/IP connection. BM60 BM60 BM60 BM60 SERIAL CARD SERIAL CARD SERIAL CARD SERIAL CARD MODBUS MODBUS LON WORKS FTT 10A...
  • Page 27: Commissioning And Operation

    3. COMMISSIONING AND OPERATION 3.1.- PRELIMINARY CHECKS BEFORE STARTUP - Check that the power supply is the same as stated on the Rating Plate which is in agreement with the electrical diagram for the unit and that cable sizes are correct. - Check that tightness of the electrical connections to their terminals and to ground.
  • Page 28 If the direction is using spare parts, or using parts approved by Lennox. incorrect, the phases must be reversed at the head of the main Only the coolant shown on the manufacturer’s nameplate shall be switch.
  • Page 29: Maintenance

    4. MAINTENANCE 4.1.- PREVENTIVE MAINTENANCE PREVENTIVE MAINTENANCE PREVENTS COSTLY REPAIRS. THIS REQUIRES PERIODIC INSPECTIONS: GENERAL STATE OF THE CASING: COMPRESSOR: Furniture, paint, damage due to shocks, rust spots, levelling and suppor- If a sight glass is fi tted, check the oil level. ting, condition of the shock absorbers, if installed, screwed panels, etc.
  • Page 30: Fault Diagnosis

    4. MAINTENANCE 4.3.- FAULT DIAGNOSIS In case of failure or malfunction of the unit, the display on the control panel will show an error or alarm warning which is explained in the control panel manual. Nevertheless, whenever there is a unit fault, the unit should be shut down and our service technicians consulted.
  • Page 31 4. MAINTENANCE 4.3.1.- SAFETY DEVICES Unit with specifi c compressor protection La unidad incorpora compresor con protección específi ca ASTP COMPRESSOR PROTECTION: This device protects the compressor against high discharge temperatures. When the temperature reaches critical values, ASTP protection causes the "Scrolls" to separate.
  • Page 32 NOTES • 31 • Installation, Operation and Maintenance manual • ASC/ASH-MIL152E-1217-01/2019...
  • Page 33 +33 4 72 23 20 20 +33 4 72 23 20 20 Due to LENNOX EMEA ongoing commitment to quality, the specifi cations, ratings and dimensions are subject to change without notice and without incurring liability. Improper installation, adjustment, alteration, service or maintenance can cause property damage or personal injury.