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Lennox WA Series Installation, Operating And Maintenance

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Библиотека СОК 
Installation, operating
and maintenance
AIR COOLED CHILLERS
Providing indoor climate comfort
CHILLER_AC-IOM-1106-E

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Summary of Contents for Lennox WA Series

  • Page 1 Библиотека СОК  Installation, operating and maintenance AIR COOLED CHILLERS Providing indoor climate comfort CHILLER_AC-IOM-1106-E...
  • Page 3 All the technical and technological information contained in this manual, including any drawing and technical descriptions provided by us, remain the property of Lennox and must not be utilised (except in operation of this product), reproduced, issued to or made •...

  • Page 4: Table Of Contents

    Lennox. TABLE OF CONTENTS ......................3 INTRODUCTION PED Declaration......................4 WARRANTY........................5 2.1 – Safety recommendations..................5 INSTALLATION ......................7 3.1 - Transport ......................7 3.2 - Lifting........................8 3.3 - Lay-out and installation requirements ..............9 3.4 - Water connections ....................10 3.5 - Electrical connections ..................13...

  • Page 5: Introduction

    We would like to stress the importance of training with respect to the correct handling of the chiller. Please consult Lennox on the options available in this field. It is important that this manual be stored in a permanent location in the vicinity of the chiller.

  • Page 6: Ped Declaration

    . In order to maintain CE marking compliance, replacement of components shall be carried out using spare parts, or using parts approved by Lennox. . Only the coolant shown on the manufacturer’s nameplate shall be used, to the exclusion of all other products (mix of coolants, hydrocarbons, etc.).

  • Page 7: Warranty

    - A flow protection device is not fitted. In these circumstances Lennox is indemnified from any product liability claims from third parties. In the event of a warranty claim the machine serial number and Lennox order number must be quoted. 2.1 – SAFETY RECOMMENDATIONS The safety information contained in this manual is provided as a guide for the safe handling of this installation.
  • Page 8 All installation parts must be maintained by the personnel in charge, in order to avoid material deterioration and injuries to people. Faults and leaks must be repaired immediately. The authorized technician must have the responsibility to repair the fault immediately. Each time repairs have been carried out to the unit, the operation of the safety devices must be re-checked.

  • Page 9: Installation

    If the product is damaged, exact details must be confirmed in writing by registered post to the shipping company within 48 hours of delivery (working days). A copy of the letter must be addressed to LENNOX and the supplier or distributor for information purposes. Failure to comply will invalidate any claim against the shipping company.

  • Page 10: Lifting

    3.2 - LIFTING THE UNIT 3.2.1 - Safety instructions Installation, start up and adjustment of this equipment can be dangerous if certain system specific factors are ignored, such as operating pressures, electrical components, locations (roofs, terraces and other structures located well above ground level).

  • Page 11: Lay-Out And Installation Requirements

    3.3 - LAY-OUT AND INSTALLATION REQUIREMENTS The following preparations are important for the installation of the chiller : - Air-cooled chillers with helicoids fans such as Ecologic are designed for outdoor installation. Please consult Lennox prior to implementing other types of installation.

  • Page 12: Water Connections

    CLEARANCES DRAWINGS For more details, please consult our Application Guides or the drawings supplied with the unit. ECOLOGIC range Unit with screw compressor OVERHEAD OBSTRUCTIONS ARE NOT PERMITTED 2 meters 2 meters > 3 meters Not recommended Not allowed For any air cooled unit, it is necessary to have a minimum distance between air coil and any obstacle of 1,5 meters.
  • Page 13 If the external water pipes are in an area, where the ambient temperature is likely to fall below 0°C, insulate the piping and add an electric heater. As an option, the internal unit piping is protected. Ensure full earthling continuity For unit with shell and tube heat exchangers, a drainage plug is located at the base of the evaporator.
  • Page 14 (See the wiring diagram supplied with the unit). The normally closed contact can be used as an indication of a lack of flow condition. Warranty is void if a flow detection device is not fitted and connected to the LENNOX control panel. • 12 •...

  • Page 15: Electrical Connections

    Operation of a unit with the wrong power supply or with excessive phase imbalance constitutes abuse and is not covered by the LENNOX warranty. If phase imbalance exceeds 2 % for voltage and 1 % for current, contact your local electricity company immediately before powering up the unit.
  • Page 16 3) Liquid velocity under 2 m/s (to avoid liquid slugging). 4) For liquid risers, make sure that liquid subcooling is sufficient to counteract the loss of static pressure and prevent gas flashing. 3.7.2 - Discharge lines and suction lines Calculate these to obtain a gas velocity in vertical sections that enables compressor oil migration and steady return to the compressor (tables C and D - page 15).
  • Page 17 UNITS WITH REMOTE CONDENSER Unit with remote condenser Unit with remote condenser without capacity control with capacity control H1 : 15 m. maxi 1 - Lower trap with single tube H2 : 5 m. maxi 2 - Clode coupled trap H3 : 0,3 m.
  • Page 18 CONDENSING UNITS Condensing unit Condensing unit without capacity control with capacity control Min 0,25% Min 0,25% gradient Min 0,25% gradient gradient H1 : 15 m. maxi 1 - Lower trap with single tube H2 : 5 m. maxi 2 - Clode coupled trap H4 : 0,15 m.
  • Page 19 Minimum refrigeration capacity in kW for oil entrainments up Suction risers Refrigerant : R407C Table C Tubing nominal OD, mm Saturated Suction gas temperature temperature (°C) (°C) 0,39 0,71 1,20 2,04 3,88 6,88 11,11 21,31 36,85 55,86 115,24 199,30 0,37 0,68 1,14 1,94...
  • Page 20 Note : This table is valid for self-contained chillers only (or chillers mounted on receivers) on which the leaving water temperature is not lower than -5°C. For other cases, consult the documentation shipped with the machine. Oil recommendation for Lennox chillers Refrigerant Compressor type...

  • Page 21: Ducted Units Installation

    3.7.7 - Air cooled condensers An air cooled condenser connected to a unit must have the same number of circuits as the unit. Selection of the condenser must be made carefully to enable transfer of the heat capacity of the unit even at the highest temperatures expected on an installation.

  • Page 22: Preliminary Checks

    The unit hydraulic sketch is given in the «ANNEXES» at the end of the IOM - See page 50 to 54. 4.4 - INSTALLATION OF EXTERNAL HYDRAULIC COMPONENTS (supplied loose by Lennox). Some hydraulic components may be supplied loose by Lennox: - Filters - Expansion vessels...
  • Page 23 P2 = pressure drop measured on site P1 = pressure drop published by LENNOX for a liquid flow of Q1 Q1 = nominal flow real flow 8) On units with air cooled condensers, check for correct operation of the fans and that the protective grilles are in good condition.
  • Page 24 Check that according to the diagram below (figure 14), the following ratio remains the same. A(mm) P(mm) The belts should always be replaced when : - the disk is set to maximum, - the belt rubber is worn or the wire is visible. Replacement belts must have the same rated size as the ones they are replacing.
  • Page 25 AT 18-18 FAN CURVE • 23 • Installation - Operation - Maintenance manual (IOM) • AIR COOLED CHILLERS & SPLIT UNITS - 1106-E...

  • Page 26: Unit Start-Up

    UNIT START-UP 5 - UNIT START-UP 5.1 - CHECKS TO BE MADE DURING START UP 5.1.1 CHECKS TO BE MADE DURING START UP Before starting the unit, fill in the check list sheet §8.3 of this manual and follow the instructions below to be sure that the unit is correctly installed and ready to operate.

  • Page 27: Oil Charge

    IMPORTANT - Start up and commissioning must be conducted by LENNOX authorised engineer. - Never shut of power to the crankcase heaters except for lengthy service operations or seasonal shutdown. Remember to power up the crankcase heaters at least 24 hours before the unit is restarted.

  • Page 28: Operation

    OPERATION 6 - OPERATION 6.1 - CLIMATIC CONTROL cf. See the specific CLIMATIC 50 manual cf. See the specific «Basic CLIMATIC controller» manual 6.2 - UNIT OPERATION 6.2.1 - Functions of refrigeration circuit components 6.2.1.1 - Thermostatic expansion valve: Very important: The thermostatic expansion valve fitted on each machine has been selected for a given operating range;...
  • Page 29 6.2.1.7 - Fan control pressure switch and thermostat: The function of these devices is to ensure a level of head pressure compatible with proper unit operation. An increase in outdoor air temperature increases head pressure, and this is maintained at its required value by fan operation.
  • Page 30 6.2.2.4 - Indicator lights: The electrical control box is fitted with indicator lights enabling visualisation of the state of operation or non operation of a function or given circuit. There is also an indicator to show that the unit is powered up, an emergency stoppage indicator for each compressor, an indicator to show stoppage of the compressor via the regulating system (through the main control thermostat which is sensitive to chilled water temperature), a run light per compressor, and a general fan default stoppage indicator (on air cooled units).
  • Page 31 In cases other than that of manually reset safety devices, starting up of the circuit or the machine takes place automatically once the default has been cleared. 6.2.3.4 - Loss of power supply : There are no problems restarting the machine after a loss of power supply of short duration (up to about one hour). If loss of power supply lasts longer than this, when power supply is resumed set the unit to «OFF»...
  • Page 32 WA/RA 200D / 230D WA/RA 270D / 300D WA/RA 370D HE - SLN HE - SLN HE - SLN WAH 150 D STD WA/RA 100E / 110E HE - SLN Special units with screw compressors - Fans electrical box labelling size 442 / 452 size 502 / 552 size 602 / 652...

  • Page 33: Maintenance

    size 952 / 1003 / 1053 / 1153 Size 1254 / 1354 / 1404 / 1504 MAINTENANCE 7. MAINTENANCE Warning : During the life-time of the system, inspection and tests must be carried out in accordance with national regulations. The information on operating inspections given in annex C of standard EN378-2 can be used if no similar criteria exist in the national regulations.

  • Page 34: Weekly Maintenance

    It is important that unit are serviced regularly by a qualified technican, at least once every year or every 1000 hours of operation. Failure to observe this rule can lead to cancellation of the warranty and will clear LENNOX of whatever responsibility.

  • Page 35: Cleaning The Condenser

    Also, analysis operations should be conducted according to the right procedures, so as to avoid accidents and potential injury of service personnel. - Follow the recommendations given by LENNOX as concerns compressor oil (see the appropriate table). - Conduct a refrigerant leak test.

  • Page 36: Troubleshooting - Repairs

    TROUBLESHOOTING – REPAIRS 8.1 LIST OF THE MOST COMMON PROBLEMS PROBLEMS – SYMPTOMS PROBABLE CAUSE RECOMMENDED ACTION THE COMPRESSOR DOES NOT START - Check main power supply and - No power supply - Motor control circuits established, switch positions the compressor does not run - Compressor motor burnt out - Replace - Low voltage reading on voltmeter...
  • Page 37 8.1 LIST OF THE MOST COMMON PROBLEMS – CONTINUED PROBLEMS – SYMPTOMS PROBABLE CAUSE RECOMMENDED ACTION B) THE COMPRESSOR DOES NOT START - Low pressure safety switch trip - Check low pressure safety switch differential - Normal operation with too - Low refrigerant charge - Check the charge through the frequent starts and stoppages...
  • Page 38 8.1 LIST OF THE MOST COMMON PROBLEMS – CONTINUED PROBLEMS – SYMPTOMS PROBABLE CAUSE RECOMMENDED ACTION D) THE COMPRESSOR RUNS IN LONG CYCLES OR RUNS CONTINOUSLY - Faulty control thermostat - Check operation - Temperature too low in the - Chilled water thermostat set too low - Adjust it conditioned space - Check the refrigerant charge in the...
  • Page 39 8.1 LIST OF THE MOST COMMON PROBLEMS – CONTINUED PROBLEMS – SYMPTOMS PROBABLE CAUSE RECOMMENDED ACTION F) THE COMPRESSOR CUTS OUT ON ANTIFREEZE PRESSURE SWITCH - Check that the pressure switch is - Antifreeze pressure switch tripped operating properly - Low water flow in the evaporator - Check the water pump - Evaporator obstructed - Determine the degree of fouling by...
  • Page 40 8.1 LIST OF THE MOST COMMON PROBLEMS – CONTINUED PROBLEMS – SYMPTOMS PROBABLE CAUSE RECOMMENDED ACTION J) THE COMPRESSOR IS NOISY - If starting on a single winding on - Check operation of the starter compressors fitted with part winding contacts, the start up time delay and start or wye-delta the condition of the windings...
  • Page 41 8.1 LIST OF THE MOST COMMON PROBLEMS – CONTINUED PROBLEMS – SYMPTOMS PROBABLE CAUSE RECOMMENDED ACTION M) SUCTION PRESSURE IS TOO HIGH - The compressor runs - Too much cooling demand on the - Check the system evaporator continuously a) Adjust superheat and check that a) Expansion valve opened to far the expansion valve bulb is - Suction line unusually cold.

  • Page 42: Control Devices

    8.2 CONTROL DEVICES Operation By reacting to compressor discharge pressure, the high pressure sensor monitors efficiency of the condenser. Poor efficiency, the result of an excessive condensing pressure, is usually caused by : - A dirty condenser - Low water flow (in case of water cooled unit) - Low air flow (in case of air cooled unit) The low pressure switch monitors the pressure at which the refrigerant evaporates in the evaporator tubes.

  • Page 43: Manufacturer's Recommended Inspections

    8.3 MANUFACTURER’S RECOMMENDED INSPECTIONS 8.3.1 - LIQUID CHILLERS WITH RECIPROCATING COMPRESSOR(S) 8.3.1.1 - Number of recommended preventive maintenance visits : NUMBER OF RECOMMENDED PREVENTIVE MAINTENANCE VISITS Major 500/1000H Inspection 15 000 h 30000 h Tube Year Start up technical visit visit inspection inspection...
  • Page 44 8.3.1.2 - Description of inspection duties - Liquid chiller with reciprocating compressor(s) START UP - Check unit installation - Check water flow and water circuit ancillaries - Check safety devices - Check leaktightness - Configuration of the microprocessor based management system (if used) - Verification of operating parameters and unit performance - Transmission of the machine service log 500 H / 1000 H VISITS...
  • Page 45 8.3.2 - LIQUID CHILLERS WITH SCROLL COMPRESSOR(S) 8.3.2.1 - Number of recommended preventive maintenance visits : NUMBER OF RECOMMENDED PREVENTIVE MAINTENANCE VISITS 500/1000H Major technical Year Start up Inspection visit Tube analysis visit inspection Every year 3 times a year Every 3 years This table is published for units operating under normal conditions with an average annual runtime of 4000 hours.
  • Page 46 8.3.2.2 - Description of inspection duties - Liquid chiller with scroll compressor(s) START UP - Check unit installation - Check water flow and water circuit ancillaries - Check safety devices - Check leaktightness - Configuration of the microprocessor based management system (if used) - Verification of operating parameters and unit performance - Transmission of the machine service log 500 H / 1000 H VISITS...
  • Page 47 8.3.3 - LIQUID CHILLERS WITH SCREW COMPRESSOR(S) 8.3.3.1 - Number of recommended preventive maintenance visits : NUMBER OF RECOMMENDED PREVENTIVE MAINTENANCE VISITS Major 500/1000H 30000 h Year Start up technical Inspection visit Tube analysis visit inspection inspection Every 30000 Every year 3 times a year Every 3 years hours...
  • Page 48 8.3.3.2 - Description of inspection duties - Liquid chiller with screw compressor(s) START UP - Check unit installation - Check water flow and water circuit ancillaries - Check safety devices - Check leaktightness - Configuration of the microprocessor based management system - Verification of operating parameters and unit performance - Transmission of the machine service log 500 H / 1000 H VISITS...

  • Page 49: Annexes

    AIR COOLED CHILLERS AND SPLIT UNITS INSTALLATION OPERATION MAINTENANCE MANUAL Ref : CHILLERS_IOM-1106-E ANNEXES HYDRAULIC CIRCUIT DRAWINGS .........................48 ECOLOGIC range OPERATING LIMITS .........................52 ECOLOGIC range Screw compressor chiller....................56 RISK ANALYSIS AND HAZARDOUS SITUATIONS ACCORDING TO 97/23/CE DIRECTIVE ..61 REFRIGERATION CIRCUIT DRAWINGS .........................63 ECOLOGIC range RA range..........................65...
  • Page 50 ECOLOGIC - hydraulic/hydronic data UNIT WITHOUT HYDRAULIC OR HYDRONIC MODULE WA 150 STD – LN / WA 75 – 100 – 110 HE – SLN WA 270 370 STD – LN – HE – SLN / WA 90 – 130 - 150 HE – SLN ITEMS SUPPLIED LOOSE ITEMS MOUNTED INSIDE THE UNIT Groove lock coupling...
  • Page 51 ECOLOGIC - hydraulic/hydronic data UNIT WITH HYDRONIC MODULE ITEMS SUPPLIED LOOSE ITEMS MOUNTED INSIDE THE UNIT Single 50L expansion Groove lock coupling Paddle flow switch vessel (WA <= 150D) Pump suction isolation Unit isolation valve Water tank 200L or 500L valve Water inlet filter Safety valve...
  • Page 52 ECOLOGIC - hydraulic/hydronic data UNIT WITH HYDRAULIC MODULE WA STD – LN - HE – SLN ITEMS SUPPLIED LOOSE ITEMS MOUNTED INSIDE THE UNIT Groove lock coupling Paddle flow switch Single pump Unit isolation valve 25L expansion vessel Double pump Second 25L expansion vessel Water inlet filter Air purge...
  • Page 53 ECOLOGIC - hydraulic/hydronic data UNIT WITH FREE COOLING OPTION WA 150 STD – LN WA 150 HE – SLN and 200/230/270/300/370 STD/LN/HE/SLN ITEMS SUPPLIED LOOSE ITEMS MOUNTED INSIDE THE UNIT Groove lock coupling Plate heat exchanger Free cooling coil Unit isolation valve Temperature sensor Isolating valves Water inlet filter...
  • Page 54 ECOLOGIC - OPERATING LIMITS WA STANDARD Minimum outlet water temperature °C Maximum inlet water temperature °C Minimum difference water inlet/outlet °C Maximum difference water inlet/outlet °C Minimum outside air temperature °C Minimum outside air temperature °C with low ambient kit Maximum outside air temperature : •...
  • Page 55 WA HIGH EFFCIENCY 075 090 110 130 Minimum outlet water temperature °C Maximum inlet water temperature °C Minimum difference water inlet/outlet °C Maximum difference water inlet/outlet °C Minimum outside air temperature °C Minimum outside air temperature °C with low ambient kit Maximum outside air temperature : •...
  • Page 56 ECOLOGIC WAH - COOLING MODE Minimum outlet water temperature °C Maximum inlet water temperature °C Minimum difference water inlet/outlet °C Maximum difference water inlet/outlet °C Minimum outside air temperature °C Maximum outside air temperature : • Normal operation with CLIMATIC™ 50 °C 12°C/7°C water + one compressor unloaded...
  • Page 57 WA STANDARD Operating limits for evaporator Water Test pressure Refrigerant Test pressure Water Max. operating pressure Refrigerant Max. operating pressure 8°C ∆ T Water Minimum flow rate Water Maximum flow rate 3°C ∆ T Operating limits for evaporator Safety Low pressure cut out Safety Interlocking of low pressure Safety...

  • Page 58: Operating Limits

    Screw chiller - operating limits ALL UNITS - STANDARD Size 402V 422VE 442V 452VE 502V Operating limits Min. outlet water temperature °C Max. inlet water temperature °C Min. difference water inlet/outlet °C Max. difference water inlet/outlet °C Min. outside air temperature °C Min.
  • Page 59 ALL UNITS – HIGH AMBIENT Size 442V 452VE 502V 552VE 602V 652VE Operating limits Min. outlet water temperature °C Max. inlet water temperature °C Min. difference water inlet/outlet °C Max. difference water inlet/outlet °C Min. outside air temperature °C Min. outside air temperature (1) °C Max.
  • Page 60 ALL UNITS – LOW NOISE Size 402V 422VE 442V 452VE 502V Operating limits Min. outlet water temperature °C Max. inlet water temperature °C Min. difference water inlet/outlet °C Max. difference water inlet/outlet °C Min. outside air temperature °C Min. outside air temperature (1) °C Max.
  • Page 61 ALL UNITS – STANDARD / LOW NOISE / HIGH AMBIENT Size 442V 452VE 502V 552VE 602V 652VE Operating limits for Evaporator Water Test pressure Refrigerant Test pressure 26,5 Water Max. operating pressure Refrigerant Max. operating pressure 26,5 m3/h ∆ Water Min. flow 8°C Water Max.
  • Page 62 Size 702V 752VE 803V 853VE 953V 1003VE Operating limits for Evaporator Water Test pressure Refrigerant Test pressure 26,5 Water Max. operating pressure Refrigerant Max. operating pressure 26,5 m3/h ∆ Water Min. flow 8°C Water Max. flow m3/h 153,5 153,5 153,5 153,5 Operating limits for Pressure gauge control Safety Cut of low pressure...

  • Page 63: Risk Analysis And Hazardous Situations According To 97/23/Ce Directive

    RISK ANALYSIS AND HAZARDOUS SITUATIONS ACCORDING TO 97/23/CE DIRECTIVE Information to minimise the N° Event Effect Risk Actions to Eliminate the Risk Occurrence of a risk Violent Chocks, Static or Appearance of cracks, distortions, Leaks, liquid or gas projections, Only handling the units using the Handling procedure shown in the Dynamic Loads applied possibility of rupture...
  • Page 64 Use brazing Brazing or un-brazing parts Strains, cracks, pipe Indications in the technical IOM the circuit, liquid/gas/metal parts materials approved by Lennox. Ensure from the circuit bursting supplied could be thrown out of the unit the circuit is leak free before refilling with refrigerant.

  • Page 65: Refrigeration Circuit Drawings Ecologic Range

    ECOLOGIC - REFRIGERATION CIRCUIT REFRIGERANT DRAWING WA STD – LN - HE – SLN REFRIGERATION CIRCUIT COMPONENTS Expansion valve bypass 1st & 2nd scroll compressors Air cooled condenser for low ambient operation 3rd scroll compressor on size 370 Fan motor Electronic expansion valve STD/LN/HE &...
  • Page 66 ECOLOGIC - REFRIGERATION CIRCUIT REFRIGERANT DRAWING WAH 150 / 200D / 230D REFRIGERATION CIRCUIT COMPONENTS Air cooled External temperature 1st & 2nd scroll compressors condenser/Evaporator sensor High pressure switch Fan motor Check valve Pressure transducers HP & BP Manual isolating valve Restrictor Low and High pressure manometer Filter drier...

  • Page 67: Ra Range

    RA - REFRIGERATION CIRCUIT REFRIGERANT DRAWING RA STD – LN - HE – SLN REFRIGERATION CIRCUIT COMPONENTS 1st & 2nd scroll compressors Safety valve CE or UDT Solenoïd valve 3rd scroll compressor on size 370 Air cooled condenser Sight glass STD/LN/HE &...

  • Page 68: Certificates

    CERTIFICATES • 66 • Installation - Operation - Maintenance manual (IOM) • AIR COOLED CHILLERS & SPLIT UNITS - 0105-E...

  • Page 69: Ped

    • 67 • Installation - Operation - Maintenance manual (IOM) • AIR COOLED CHILLERS & SPLIT UNITS - 0105-E...

  • Page 70: Ce Conformity

    • 68 • Installation - Operation - Maintenance manual (IOM) • AIR COOLED CHILLERS & SPLIT UNITS - 0105-E...

  • Page 71: Start Up And Maintenance Logbook

    START-UP AND MAINTENANCE LOGBOOK INSTALLATION CHECK-UP This check list should be filled in before the start-up with the contractor to make sure that unit installation takes place according to appropriate industry practices. WARNING : Refer to Safety recommendation §2.1 prior to any work on the unit. DATE: TECHNICIAN: FIELD NAME:...
  • Page 72 • UNIT INSTALLATION CLEARANCE AROUND UNIT IN CONFORMITY CORRECT CONDENSORS VENTILATION UNIIT LEVELLED VIBRATION ISOLATION MOUNTED AND PROPERLY DIMENSIONED VIBRATION ISOLATORS ON PIPING CONNECTION CORRECT EARTHING OF THE UNIT EARTH CONTINUITY ON PIPING • HYDRAULIC NETWORK GLYCOL PROTECTION IN CONFORMITY PRIMARY LOOP SECONDARY LOOP WATER TANK...

  • Page 73: Start-Up Check Sheet

    START-UP CHECK SHEET Unit type Technician name Construction year Start-up date THERMAL DATA Evaporator I / O temp. °C °C °C °C Condenser I / O temp °C °C °C °C Ambient air temp °C °C °C °C FRIGORIFIC DATA Cooling capacity: CIRCUIT 1 CIRCUIT 2...

  • Page 74: Start-Up Conclusion

    Remarks: ……………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… Reserves: ………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… TECHNICIAN CUSTOMER Name Name Signature: Signature: • 72 • Installation - Operation - Maintenance manual (IOM) •...

  • Page 75: Maintenance Logbook

    MAINTENANCE LOGBOOK MAINTENANCE visit n° 1 (500H / 1000H) Date Y / N Value Comments Unit general control (corrosion, damages…) Exchanger cleaning Leak test done Oil acidity test carried Replacement of filter drier cartridge Water filters cleans Evaporator pressure drop Water condenser pressure drop Glycol concentration level Unit operating parameters checked and in conformity...
  • Page 76 MAINTENANCE LOGBOOK MAINTENANCE visit n° 3 Date Y / N Value Comments Unit general control (corrosion, damages…) Exchanger cleaning Leak test done Oil acidity test carried Replacement of filter drier cartridge Water filters cleans Evaporator pressure drop Water condenser pressure drop Glycol concentration level Unit operating parameters checked and in conformity Fans currents level checked and in conformity...
  • Page 77 MAINTENANCE LOGBOOK MAINTENANCE visit n° 5 Date Y / N Value Comments Unit general control (corrosion, damages…) Exchanger cleaning Leak test done Oil acidity test carried Replacement of filter drier cartridge Water filters cleans Evaporator pressure drop Water condenser pressure drop Glycol concentration level Unit operating parameters checked and in conformity Fans currents level checked and in conformity...
  • Page 78 MAINTENANCE LOGBOOK MAINTENANCE visit n° 7 Date Y / N Value Comments Unit general control (corrosion, damages…) Exchanger cleaning Leak test done Oil acidity test carried Replacement of filter drier cartridge Water filters cleans Evaporator pressure drop Water condenser pressure drop Glycol concentration level Unit operating parameters checked and in conformity Fans currents level checked and in conformity...
  • Page 79 MAINTENANCE LOGBOOK MAINTENANCE visit n° 9 Date Y / N Value Comments Unit general control (corrosion, damages…) Exchanger cleaning Leak test done Oil acidity test carried Replacement of filter drier cartridge Water filters cleans Evaporator pressure drop Water condenser pressure drop Glycol concentration level Unit operating parameters checked and in conformity Fans currents level checked and in conformity...
  • Page 80 MAINTENANCE LOGBOOK MAINTENANCE visit n° 11 Date Y / N Value Comments Unit general control (corrosion, damages…) Exchanger cleaning Leak test done Oil acidity test carried Replacement of filter drier cartridge Water filters cleans Evaporator pressure drop Water condenser pressure drop Glycol concentration level Unit operating parameters checked and in conformity Fans currents level checked and in conformity...
  • Page 81 MAINTENANCE LOGBOOK MAINTENANCE visit n° 13 Date Y / N Value Comments Unit general control (corrosion, damages…) Exchanger cleaning Leak test done Oil acidity test carried Replacement of filter drier cartridge Water filters cleans Evaporator pressure drop Water condenser pressure drop Glycol concentration level Unit operating parameters checked and in conformity Fans currents level checked and in conformity...
  • Page 82 MAINTENANCE LOGBOOK MAINTENANCE visit n° 15 Date Y / N Value Comments Unit general control (corrosion, damages…) Exchanger cleaning Leak test done Oil acidity test carried Replacement of filter drier cartridge Water filters cleans Evaporator pressure drop Water condenser pressure drop Glycol concentration level Unit operating parameters checked and in conformity Fans currents level checked and in conformity...
  • Page 83 MAINTENANCE LOGBOOK MAINTENANCE visit n° 17 Date Y / N Value Comments Unit general control (corrosion, damages…) Exchanger cleaning Leak test done Oil acidity test carried Replacement of filter drier cartridge Water filters cleans Evaporator pressure drop Water condenser pressure drop Glycol concentration level Unit operating parameters checked and in conformity Fans currents level checked and in conformity...
  • Page 84 MAINTENANCE LOGBOOK MAINTENANCE visit n° 19 Date Y / N Value Comments Unit general control (corrosion, damages…) Exchanger cleaning Leak test done Oil acidity test carried Replacement of filter drier cartridge Water filters cleans Evaporator pressure drop Water condenser pressure drop Glycol concentration level Unit operating parameters checked and in conformity Fans currents level checked and in conformity...
  • Page 86 BELGIUM, LUXEMBOURG RUSSIA Due to Lennox’s ongoing commitment to quality, www.lennoxbelgium.com www.lennoxrussia.com the Specifications, Ratings and Dimensions are subject to change without notice and without incurring liability. CZECH REPUBLIC SLOVAKIA Improper installation, adjustment, alteration, www.lennoxczech.com www.lennoxdistribution.com service or maintenance can cause property damage or personal injury.

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