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Summary of Contents for Lennox eCOMFORT R32 GAC 035S
- Page 1 INSTALLATION, OPERATING AND MAINTENANCE AIR COOLED LIQUID CHILLER - HEAT PUMP eCOMFORT R32 35 - 210 kW MIL166E-0222 09-2022 www.lennoxemea.com...
- 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 available to third parties without the prior written agreement of LENNOX.
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Page 4: Table Of Contents
TABLE OF CONTENTS Page INTRODUCTION COMPLIANCE WITH REGULATIONS AND DIRECTIVES WARRANTY 5 - 6 7 - 8 WARNING 9 - 11 FLAMMABLE GASES DATA PAGE FOR UNIT COMMISSIONING GENERAL CHARACTERISTICS Technical data 13 - 19 Electrical data 20 - 21 Component Operation limits 24 - 27... -
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 is stored in a permanent location in the vicinity of the chiller. -
Page 6: Compliance With Regulations And Directives
Replacement of components: • In order to maintain CE marking compliance, replacement of components shall be carried out using approved parts 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. DO NOT CONFUSE THE WARRANTY WITH MAINTENANCE. - Page 8 SAFETY: The safety information contained in this manual is provided as a guide for the safe handling of this installation. LENNOX does not vouch for the completeness of this information and can therefore not accept liability for any possible omissions.
- Page 9 WARNING Warning labels The chiller may be marked with the following warning labels to alert to potential hazards (on or near the potentially hazardous part). The chiller may include the following labels. High temperatures Low temperatures Rotating parts Sharp parts Non-flammable liquefied gas Flammble liquefied gas Electrical voltage...
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Page 10: Warning
WARNING PED DIRECTIVE: For units covered by the Pressure Equipment Directive (see EU Declaration of Conformity). WARNING: Caution: The high-pressure safety switches are essential elements which guarantee the system remains within the admissible operating limits. Before switching on the installation, always ensure all electrical connections are correct on these elements which are used to isolate the electrical power supply to the compressor(s) they protect. -
Page 11: Flammable Gases
A2L / A2 / A3 flammable gases are subject to more important safety regulations than gases classified A1. This section summarizes the standard and provides specific Lennox recommendations. This section is based on the standards as well as numerical simulations and tests related to the flammability risk carried out on these products. - Page 12 FLAMMABLE GASES RECEPTION CONTROLS FOR A FLAMMABLE GAS UNIT: Please do not approach the container or truck in the presence of an open flame, an electric power source, a cell phone, or any other heat source whose temperature would exceed 500°C. Likewise, if the product had to be stored prior to installation, please store it in a place free from potential sources of ignition as descri- bed above.
- Page 13 FLAMMABLE GASES POWERING UP A UNIT CONTAINING FLAMMABLE GAS: Before switching on the power supply, please carry out a refrigerant leak detection using an appropriate device to ensure that there is no refrigerant around the machine. . Please perform a refrigerant detection with a suitable and calibrated detector to ensure that there is no gas around the unit.
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Page 14: Data Page For Unit Commissioning
DATA PAGE FOR UNIT COMMISSIONING Unit: Serial no.: Control panel identification code: Installation address: Installer: Installer tel.: Installer address: Date of commissioning: Checks: Supply voltage: Rated voltage of the unit: Unit on rubber antivibration mounts General power supply connection Control panel connection (option) Compressor oil level indicator Hydraulic connection Purged of the installation... -
Page 15: General Characteristics
Remote advanced display (supplied loose) DS60 Service display (supplied loose) Remote control: customer drive contact input/output DCBO CETH Lennox Cloud connectivity Ethernet communication CGSM Lennox Cloud connectivity GSM communication Antifreeze protection on exchangers and pipings down to -20°C APEP APPP Antifreeze protection on exchangers, pump(s), piping down to -20°C... - Page 16 1.- GENERAL CHARACTERISTICS 1.1.- TECHNICAL DATA COOLING ONLY GAC MODELS 035S 040S 045S 050S 055S 060S 065S 070S 080S 095S Cooling capacity (*) 38,4 41,6 47,5 51,8 55,0 63,6 64,3 70,0 86,3 95,8 Number of compressors 2 / Scroll Hydraulic connections 1 1/2”...
- Page 17 1.- GENERAL CHARACTERISTICS 1.1.- TECHNICAL DATA HYDRAULIC CIRCUIT GAC/GAH 035S 040S 045S 050S 055S 060S 065S 070S 080S 095S Low pressure pump Type Stainless steel threaded centrifugal pumps High pressure pump Type Fixed membrane expansion vessel Expansion vessel Max. pressure (bar) Capacity (dm Type Isolated steel tank...
- Page 18 1.- GENERAL CHARACTERISTICS 1.1.- TECHNICAL DATA FAN DATA GAC/H 055S 060S Airflow rate (m Airflow rate (m GAC/H GAC/H 065S 070S Airflow rate (m Airflow rate (m Installation manual / eCOMFORT R32-MIL166E-0222 - 09/2022 • 16 •...
- Page 19 1.- GENERAL CHARACTERISTICS 1.1.- TECHNICAL DATA FAN DATA GAC/H GAC/H 080S / 095S 110S Airflow rate (m Airflow rate (m GAC/H GAC/H 125S 115S Airflow rate (m Airflow rate (m Installation manual / eCOMFORT R32-MIL166E-0222 - 09/2022 • 17 •...
- Page 20 1.- GENERAL CHARACTERISTICS 1.1.- TECHNICAL DATA FAN DATA GAC/H GAC/H 140S 110D Airflow rate (m Airflow rate (m GAC/H GAC/H 140D 125D Airflow rate (m Airflow rate (m Installation manual / eCOMFORT R32-MIL166E-0222 - 09/2022 • 18 •...
- Page 21 1.- GENERAL CHARACTERISTICS 1.1.- TECHNICAL DATA FAN DATA GAC/H GAC/H 160D 185D Airflow rate (m Airflow rate (m GAC/H 210D Airflow rate (m Installation manual / eCOMFORT R32-MIL166E-0222 - 09/2022 • 19 •...
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Page 22: Electrical Data
1.- GENERAL CHARACTERISTICS 1.2.- ELECTRICAL DATA 035S 040S 045S 050S 055S 060S 065S 070S 080S 095S 17,38 18,82 20,64 22,33 24,02 28,83 28,33 30,93 36,98 41,53 Maximun power 28,11 31,01 35,35 38,10 40,85 47,53 46,98 52,59 62,88 69,99 Maximun current A 115,98 108,43 146,60 157,60 160,35 164,35 163,80 208,80 219,09 273,34 Starting current 75,58... - Page 23 1.- GENERAL CHARACTERISTICS 1.2.- ELECTRICAL DATA 035S 040S 045S 050S 055S 060S 065S 070S 080S 095S Maximun power 17,38 18,82 20,64 22,33 25,38 28,83 28,33 30,93 36,98 41,53 Maximun current 28,11 31,01 35,35 38,10 42,85 47,53 46,98 52,59 62,88 69,99 Starting current A 115,98 108,43 146,60 157,60 162,35 164,35 163,80 208,80 219,09 273,34 Starting current with SoftStarter...
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Page 24: Component
1.- GENERAL CHARACTERISTICS 1.3.- COMPONENTS The eComfort R32 system comprises a water cooler or air/water pump combined with a series of hydraulic accessories. STANDARD UNIT Inside terminal unit Carried out by the installer Hydraulic connections To be connected by the installer Customer connection UNIT WITH WATER PUMP OPTION... -
Page 25: Operation Limits
1.- GENERAL CHARACTERISTICS 1.4.- OPERATING LIMITS COOLING MODE Part Load HEATING MODE Standard Glycol Variable Airflow Comfort Application Control Aplication Standard Comfort Aplication Variable Airflow Variable Airflow Control + Control Glicol LEAVING WATER TEMPERATURE (ºC) Operating ranges are guidelines only. Verify the operating range with our selection tool. Water type heat exchanger: ∆T 5K. -
Page 26: Hydraulic System Data
1.- GENERAL CHARACTERISTICS 1.5.- HYDRAULIC SYSTEM DATA WATER FLOW AND AVAILABLE STATIC PRESSURE OF WATER PUMP GAC/GAH GAC/GAH 035S 040S - 045S Water flow rate (m Water flow rate (m GAC/GAH GAC/GAH 060S 050S - 055S Water flow rate (m Water flow rate (m Installation manual / eCOMFORT R32-MIL166E-0222 - 09/2022 •... - Page 27 1.- GENERAL CHARACTERISTICS 1.5.- HYDRAULIC SYSTEM DATA WATER FLOW AND AVAILABLE STATIC PRESSURE OF WATER PUMP GAC/GAH GAC/GAH 065S - 070S 080S Water flow rate (m Water flow rate (m GAC/GAH GAC/GAH 095S 110S - 115S Water flow rate (m Water flow rate (m Installation manual / eCOMFORT R32-MIL166E-0222 - 09/2022 •...
- Page 28 1.- GENERAL CHARACTERISTICS 1.5.- HYDRAULIC SYSTEM DATA WATER FLOW AND AVAILABLE STATIC PRESSURE OF WATER PUMP GAC/GAH GAC/GAH 125S - 140S 110D - 125D Water flow rate (m Water flow rate (m GAC/GAH GAC/GAH 140D 160D Water flow rate (m Water flow rate (m Installation manual / eCOMFORT R32-MIL166E-0222 - 09/2022 •...
- Page 29 1.- GENERAL CHARACTERISTICS 1.5.- HYDRAULIC SYSTEM DATA WATER FLOW AND AVAILABLE STATIC PRESSURE OF WATER PUMP GAC/GAH 185D - 210D Water flow rate (m Installation manual / eCOMFORT R32-MIL166E-0222 - 09/2022 • 27 •...
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Page 30: Pressure Drop In The Water System
1.- GENERAL CHARACTERISTICS 1.6.- PRESSURE DROP IN THE WATER SYSTEM Pressure drop of the unit without water filter Water flow rate (m Pressure drop for option water filter Water flow rate (m Installation manual / eCOMFORT R32-MIL166E-0222 - 09/2022 • 28 •... -
Page 31: Water Flow
1.- GENERAL CHARACTERISTICS 1.7.- WATER FLOW WATER FLOW RATE (m WATER CONTENT (dm UNIT MODEL UNIT WITHOUT MINIMUM NOMINAL MAXIMUM BUFFER TANK BUFFER TANK GAC 035S 3,31 6,61 10,97 GAC 040S 3,57 7,15 11,86 GAC 045S 4,09 8,17 13,57 GAC 050S 4,45 8,90 14,78... -
Page 32: Piping Drawings
1.- GENERAL CHARACTERISTICS 1.8.- PIPING DRAWINGS COOLING ONLY UNITS GAC B - BOX 035S - 040S - 045S Flow switch Electronic flow switch eDRIVE pump + water pump (options) CUSTOMER CONNECTIONS FILTER GAC B+ - BOX 050S - 055S - 060S Flow switch Electronic flow switch eDRIVE pump + water pump (options) - Page 33 1.- GENERAL CHARACTERISTICS 1.8.- PIPING DRAWINGS COOLING ONLY UNITS GAC C-BOX 065S-070S-080S Electronic Flow switch flow switch eDRIVE pump + water pump (options) CUSTOMER CONNECTIONS FILTER GAC C+-BOX 095S-110S Electronic Flow flow switch switch eDRIVE pump + water pump (options) CUSTOMER CONNECTIONS FILTER...
- Page 34 1.- GENERAL CHARACTERISTICS 1.8.- PIPING DRAWINGS COOLING ONLY UNITS GAC C+-BOX 115S Electronic Flow flow switch switch eDRIVE pump + water pump (options) CUSTOMER CONNECTIONS FILTER Desuperheater Discharge - Circuit 1 GAC D-BOX 125S Flow Electronic flow switch switch eDRIVE pump + water pump (options) CUSTOMER CONNECTIONS FILTER...
- Page 35 1.- GENERAL CHARACTERISTICS 1.8.- PIPING DRAWINGS COOLING ONLY UNITS GAC D-BOX 140S Flow Electronic switch flow switch eDRIVE pump + water pump (options) CUSTOMER CONNECTIONS FILTER Desuperheater Discharge - Circuit 1 Discharge - Circuit 2 GAC D-BOX 110D-125D-140D Flow Electronic switch flow switch eDRIVE pump + water pump (options)
- Page 36 1.- GENERAL CHARACTERISTICS 1.8.- PIPING DRAWINGS COOLING ONLY UNITS GAC E-BOX 160D Flow Electronic switch flow switch eDRIVE pump + water pump (options) CUSTOMER CONNECTIONS FILTER Desuperheater Discharge - Circuit 1 Discharge - Circuit 2 GAC E-BOX 185D-210D Flow Electronic switch flow switch eDRIVE pump + water pump (options)
- Page 37 1.- GENERAL CHARACTERISTICS 1.8.- PIPING DRAWINGS COOLING ONLY UNITS LEGEND LEGEND BS41 High pressure pressostat 1 Inlet water temperature High pressure transducer 1 BS42 Outlet water temperature Low pressure transducer 1 Evaporator antifreeze heater High pressure pressostat 2 Antifreeze heater High pressure transducer 2 E3-4-5-6 Electrical heater...
- Page 38 1.- GENERAL CHARACTERISTICS 1.8.- PIPING DRAWINGS HEAT PUMP UNITS GAH B-BOX 035S-040S-045S Electronic flow switch Flow switch eDRIVE pump + water pump (options) CUSTOMER CONNECTIONS FILTER GAH B+-BOX 050S-055S-060S Electronic Flow switch flow switch eDRIVE pump + water pump (options) CUSTOMER CONNECTIONS FILTER...
- Page 39 1.- GENERAL CHARACTERISTICS 1.8.- PIPING DRAWINGS HEAT PUMP UNITS GAH C-BOX 065S-070S-080S Electronic Flow switch flow switch eDRIVE pump + water pump (options) CUSTOMER CONNECTIONS FILTER GAH C+-BOX 095S-110S Flow switch Electronic flow switch eDRIVE pump + water pump (options) CUSTOMER CONNECTIONS FILTER...
- Page 40 1.- GENERAL CHARACTERISTICS 1.8.- PIPING DRAWINGS HEAT PUMP UNITS GAH C+-BOX 115S Electronic Flow switch flow switch eDRIVE pump + water pump (options) CUSTOMER CONNECTIONS FILTER Desuperheater Discharge - Circuit 1 GAH D-BOX 125S Electronic Flow switch flow switch eDRIVE pump + water pump (options) CUSTOMER CONNECTIONS FILTER...
- Page 41 1.- GENERAL CHARACTERISTICS 1.8.- PIPING DRAWINGS HEAT PUMP UNITS GAH D-BOX 140S Electronic Flow switch flow switch eDRIVE pump + water pump (options) CUSTOMER CONNECTIONS FILTER Desuperheater Discharge - Circuit 1 GAH D-BOX 110D-125D-140D Flow switch Electronic flow switch eDRIVE pump + water pump (options) CUSTOMER CONNECTIONS FILTER...
- Page 42 1.- GENERAL CHARACTERISTICS 1.8.- PIPING DRAWINGS HEAT PUMP UNITS GAH E-BOX 160D Flow switch Electronic flow switch eDRIVE pump + water pump (options) CUSTOMER CONNECTIONS FILTER Desuperheater Discharge - Circuit 1 Discharge - Circuit 2 GAH E-BOX 185D-210D Electronic Flow switch flow switch eDRIVE pump + water pump (options) CUSTOMER...
- Page 43 1.- GENERAL CHARACTERISTICS 1.8.- PIPING DRAWINGS HEAT PUMP UNITS LEGEND LEGEND BS41 High pressure pressostat 1 Inlet water temperature High pressure transducer 1 BS42 Outlet water temperature Low pressure transducer 1 Evaporator antifreeze heater High pressure pressostat 2 Antifreeze heater High pressure transducer 2 E3-4-5-6 Electrical heater...
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Page 44: Dimensions
1.- GENERAL CHARACTERISTICS 1.9.- DIMENSIONS GAC/GAH 035S STANDARD VERSION OR WITH HIGH PRESSURE EC FANS (HIPF) Controller connection Ø 29 1 1/2” Threaded female 1 1/2” Threaded male 1 1/2” Threaded male All dimensions in mm UNIT WITH STANDARD AC FANS (SFAC) Controller connection Ø... - Page 45 1.- GENERAL CHARACTERISTICS 1.9.- DIMENSIONS GAC/GAH 040S-045S STANDARD VERSION OR WITH HIGH PRESSURE EC FANS (HIPF) Controller connection Ø 29 1 1/2” Threaded female 1 1/2” Threaded male 1 1/2” Threaded male All dimensions in mm UNIT WITH STANDARD AC FANS (SFAC) Controller connection Ø...
- Page 46 1.- GENERAL CHARACTERISTICS 1.9.- DIMENSIONS GAC/GAH 050S-055S-060S STANDARD VERSION OR WITH HIGH PRESSURE EC FANS (HIPF) Controller connection Ø 29 2” Threaded female 2” Threaded male 2” Threaded male All dimensions in mm UNIT WITH STANDARD AC FANS (SFAC) Controller connection Ø...
- Page 47 1.- GENERAL CHARACTERISTICS 1.9.- DIMENSIONS GAC/GAH 065S-070S STANDARD VERSION OR WITH HIGH PRESSURE EC FANS (HIPF) Controller connection Ø 29 Victaulic or welded Flange connection Flange connection connection All dimensions in mm UNIT WITH STANDARD AC FANS (SFAC) Controller connection Ø 29 Victaulic or welded Flange connection Flange connection...
- Page 48 1.- GENERAL CHARACTERISTICS 1.9.- DIMENSIONS GAC/GAH 080S STANDARD VERSION OR WITH HIGH PRESSURE EC FANS (HIPF) Controller connection Ø 29 Victaulic or welded Flange connection Flange connection connection All dimensions in mm UNIT WITH STANDARD AC FANS (SFAC) Controller connection Ø...
- Page 49 1.- GENERAL CHARACTERISTICS 1.9.- DIMENSIONS GAC/H 095S-110S-115S STANDARD VERSION OR WITH HIGH PRESSURE EC FANS (HIPF) Controller connection Ø 29 Victaulic or welded Flange connection Flange connection connection All dimensions in mm UNIT WITH STANDARD AC FANS (SFAC) Controller connection Ø...
- Page 50 1.- GENERAL CHARACTERISTICS 1.9.- DIMENSIONS GAC/H 125S-140S STANDARD VERSION OR WITH HIGH PRESSURE EC FANS (HIPF) Controller connectionØ 29 Victaulic or Flange Flange welded connection connection connection All dimensions in mm UNIT WITH STANDARD AC FANS (SFAC) Controller connection Ø 29 Victaulic or Flange Flange...
- Page 51 1.- GENERAL CHARACTERISTICS 1.9.- DIMENSIONS GAC/GAH 110D-125D-140D STANDARD VERSION OR WITH HIGH PRESSURE EC FANS (HIPF) Controller connection Ø 29 Victaulic or Flange Flange welded connection connection connection All dimensions in mm UNIT WITH STANDARD AC FANS (SFAC) Controller connection Ø 29 Victaulic or Flange Flange...
- Page 52 1.- GENERAL CHARACTERISTICS 1.9.- DIMENSIONS GAC/GAH 160D-185D-210D STANDARD VERSION OR WITH HIGH PRESSURE EC FANS (HIPF) Controller connection Ø 29 Victaulic or Flange Flange welded connection connection connection Victaulic or Flange Flange welded connection connection connection All dimensions in mm UNIT WITH STANDARD AC FANS (SFAC) Controller connection Ø...
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Page 53: 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 54 2.- INSTALLATION The rating plate indicates: Address. Local regulations marking. Identification number of notified bodies. «Information to read» pictogram. Local regulations marking. QR code. Unit type. Serial number. Flammable fluid type pictogram. (10) Power part voltage. (11) Power part phase. (12) Power part phase frequency.
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Page 55: Site And Shipping Guidance
When the unit is received, it should be checked to assure that there are no bumps or other damage, following the instructions on the packaging. If there is damage, the unit may be rejected by notifying the LENNOX Distribution Deparent and reporting why the machine is unacceptable on the transport agent’s delivery notice. -
Page 56: Antivibration Mounting
2.- INSTALLATION 2.4.- ANTIVIBRATION MOUNTING 1. Mounting on a low sensibility zone Unit Flexible connection Rubber mounting 2. Mounting on a medium sensibility zone Unit Flexible connection with loop Damping spring Metallic structure Support Rubber mounting 3. Mounting on a high sensibility zone (Check floor load) Unit Flexible connection with loop Metallic and concrete structure... -
Page 57: Weight Distribution
2.- INSTALLATION 2.5.- WEIGHT DISTRIBUTION (kg) - Units with water tank STD Unit With Dual Pump With Dual Pump & Water tank Nr. Position 1122 Total Total Total 1082 (Kg) (Kg) (Kg) GAC035SP1M 121 122 95 GAC040SP1M 114 131 92 106 GAC045SP1M 112 130 96 GAC050SP1M 143 162 122 138 GAC055SP1M 147 163 121 134... - Page 58 2.- INSTALLATION 2.5.- WEIGHT DISTRIBUTION (kg) - Units with water tank 2242 1083 1083 STD Unit With Dual Pump With Dual Pump & Water tank Nr. Position Total Total Total (Kg) (Kg) (Kg) GAC125SP1M 146 126 129 101 150 138 145 210 163 220 1283 GAC140SP1M...
- Page 59 2.- INSTALLATION 2.5.- WEIGHT DISTRIBUTION (kg) - Units with water tank STD Unit Nr. Position Total (Kg) GAC160DP1M 329 169 268 1405 GAC185DP1M 341 172 271 1441 GAC210DP1M 341 172 271 1441 2242 GAH160DP1M 329 169 268 1400 1083 1083 GAH185DP1M 341 172 277 1447...
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Page 60: Installation Clearances
2.- INSTALLATION 2.6.- INSTALLATION CLEARANCES Clearance around the unit, for any unit version. Keep this space free around the unit for installation. Failure to install the units as shown will impact performance and reliability. STANDARD VERSION OR WITH HIGH UNIT WITH STANDARD AC FANS (SFAC) PRESSURE EC FANS (HIPF) Installation manual / eCOMFORT R32-MIL166E-0222 - 09/2022 •... - Page 61 2.- INSTALLATION 2.6.- INSTALLATION CLEARANCES Clearance around the unit, for any unit version. Keep this space free around the unit for installation. Failure to install the units as shown will impact performance and reliability. STANDARD VERSION OR WITH HIGH UNIT WITH STANDARD AC FANS (SFAC) PRESSURE EC FANS (HIPF) Installation manual / eCOMFORT R32-MIL166E-0222 - 09/2022 •...
- Page 62 2.- INSTALLATION 2.6.- INSTALLATION CLEARANCES Clearance around the unit, for any unit version. Keep this space free around the unit for installation. Failure to install the units as shown will impact performance and reliability. STANDARD VERSION OR WITH HIGH UNIT WITH STANDARD AC FANS (SFAC) PRESSURE EC FANS (HIPF) Installation manual / eCOMFORT R32-MIL166E-0222 - 09/2022 •...
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Page 63: Unit Installation
2.- INSTALLATION 2.7.- UNIT INSTALLATION 1. The eComfort R32 units could be installed outside or inside. 2. See the minimum clearance diagrams for access - air supply to the batteries in the heating section of the unit. 3. Assemble the unit on a solid and resistant base, preferably concrete. To prevent vibrations, the concrete base should not come into contact with the building’s foundations. - Page 64 2.- INSTALLATION For location inside, keep in mind following advice: • In heat pump units during defrost cycle, the units produce a great amount of water melting the ice off coils. If you wish to drain the water, adequate drainage should be installed below the unit to collect and carry out the water where desired. •...
- Page 65 2.- INSTALLATION 17. Oil circulation through the system must be ensured at all times (compressor oil return, oil balance, refrigerant reflux and oil dilution). The pipes of the refrigeration system have been designed to guarantee a sufficient velocity of the refrigerant gas, so that the oil returns to the compressor at all times and in all conditions.
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Page 66: Electrical Connections
2.- INSTALLATION 2.8.- ELECTRICAL CONNECTIONS For safety reasons, LENNOX recommends that the electrical installation be carried out in accordance with EN 60204-1 and/or other applicable Standards and Regulations when dealing with slightly flammable A2L refrigerants. - BEFORE MAKING ANY ELECTRICAL CONNECTIONS, BE SURE THAT ALL CIRCUIT BREAKERS ARE OPEN AND SUPPLY IS OFF. - Page 67 2.- INSTALLATION 2.8.- ELECTRICAL CONNECTIONS NUMBER OF WIRE x SECTION UNIT COBRE / CUPPER ALUMINIO / ALUMINIUN POWER SUPPLY MODEL WITHOUT WTHH WITH WTHH WITHOUT WTHH WITH WTHH 035SP1M 4G x 6mm² 4G x 6mm² 4G x 6mm² 4G x 10mm² 040SP1M 4G x 6mm²...
- Page 68 2.- INSTALLATION 2.8.- ELECTRICAL CONNECTIONS NUMBER OF WIRE x SECTION UNIT COBRE / CUPPER ALUMINIO / ALUMINIUN POWER SUPPLY MODEL WITHOUT WTHH WITH WTHH WITHOUT WTHH WITH WTHH 035SP1M 4G x 6mm² 4G x 10mm² 4G x 6mm² 4G x 16mm² 040SP1M 4G x 6mm²...
- Page 69 Main switch pad dimension Customer protection information In order to protect our unit, LENNOX recommends the implementation of this type of protection upstream. There are two options available, either circuit breaker protection or fuse protection. The customer must provide the necessary equipment in his installation to protect the power line that feeds our unit.
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Page 70: Partial Heat Recovery
2.- INSTALLATION 2.9.- PARTIAL HEAT RECOVERY OPTION The aim of the Partial Heat Recovery (PHRF) is to recover temperature heat from the compressor discharge gases by means of a condensing water heat exchanger. The heat recovery capacity depends on the operating conditions (the compressor discharge temperature comes from the HP/LP ratio), on the number of compressor running, on the water flow and on the water inlet temperature. -
Page 71: Commissioning And Operation
3.- COMMISSIONING AND OPERATION LENNOX REFAC, S.A. Designs and develops its machines always looking for the greater comfort and well-being of its customers and users, at the same time as the greater energy efficiency of the elements that constitute the units. This effort would be fruitless if it was not united to a responsible use of these equipment. - Page 72 3.- COMMISSIONING AND OPERATION 3.1.- STEPS TO FOLLOW FOR COMMISSIONING THE UNITS 11.- In case it is necessary to charge the unit with refrigerant, the following recommendations must be followed: - Before charging or recharging, the system must be leak tested and pressure tested with the appropriate purge gas. - Make sure that the refrigerant circuit is grounded before loading it with refrigerant.
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Page 73: Unit Operation: Electrical And Control Features
3.- COMMISSIONING AND OPERATION 3.2.- UNIT OPERATION: ELECTRICAL AND CONTROL FEATURES See the specific manual for the «CLIMATIC» control. 1.- Fan over current protection: Circuit breaker designed to stop the fan motors in the event of phase over current in relation to the permitted value. 2.- Compressor motor over current protection: Circuit breaker designed to protect each motor winding against accidental over current. -
Page 74: Checking The Water Flow Rate
3.- COMMISSIONING AND OPERATION 3.4.- CHECKING THE WATER FLOW RATE It is very important that the unit operates at the correct water flow rate. It is dangerous to leave the unit operating at a low flow rate as this could result in serious damage to components as well as the water exchanger. If the unit operates at too high a flow rate, this will also hinder optimum performance. -
Page 75: Water Analysis
3.- COMMISSIONING AND OPERATION 3.5.- WATER ANALYSIS The water must be analysed; the water circuit installed must include all items necessary for treaent of the water: filters, additives, intermediate exchangers, bleed valves, vents, isolating valves etc... depending on the results of the water analysis. We do not advise operation of the units with open loops which can cause problems with oxygenation, or operation with untreated ground water. -
Page 76: Maintenance
4.- MAINTENANCE When carrying out maintenance works on these units, please make a correct segregation of the non-hazardous waste generated: insu- lation, air filters, plastic or metallic elements, packaging, etc., as well as waste considered hazardous: oils, filters and rags Impregnated with oils, welding elements such as filler material, strippers, electrical and electronic waste, batteries, lamps, etc., these must be mana- ged by an authorized dealer. -
Page 77: Preventive Maintenance
4.1.- PREVENTIVE MAINTENANCE PREVENTIVE MAINTENANCE PREVENTS COSTLY REPAIRS. We recommend regular and thorough servicing of the LENNOX unit. It is therefore advisable to ask your dealer about maintenance contracts. Check maintenance of the following points indicated (depending on the operating conditions maintenance every 6 months may be necessary). -
Page 78: Maintenance Plan
4.- MAINTENANCE 4.2.- MAINTENANCE PLAN MAINTENANCE PLAN N° Task Operating mode Inspection of the microchannel Proper care to be given when cleaning the coils. If corrosion is detected, coils aluminum-copper connexions a preventive treatment needs to be done following our recommendations. for corrosion. - Page 79 MAINTENANCE PLAN N° Task Operating mode Measure the water flow rate and compare to the selected value from Check water flow. the technical datasheet. ATTENTION: The water circuit can be under pressure. Follow the Inspection and cleanning the water usual precautions when depressurizing the circuit before opening. filter.
- Page 80 MAINTENANCE PLAN N° Task Operating mode Check the position of all sensors. Check the position and the fixation of all sensors. • Check anti-vibration mountings, for Visually check anti-vibration mountings on compressors and centrifu- • wear and tear. gal fan. Replace it, if damaged. Check the glycol concentration in the pressurized water circuit.
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Page 81: Cleaning The Condenser
4.- MAINTENANCE 4.3.- CLEANING THE CONDENSER 4.3.1.- Air cooled condensers Clean the coils either with a vacuum cleaner, cold water, compressed air, or with a soft brush (non metallic). On units installed in a co- rrosive aosphere, coil cleaning should be part of the regular maintenance program. On this type of installation, all dust gathered on the coils should be quickly removed by regular cleaning. - Page 82 4.- MAINTENANCE 4.3.- CLEANING THE CONDENSER In case of deterioration of the sleeve, it must be removed and replaced by polyurethane sealant - like Sikaflex 221 or equivalent. In this case the recommended procedure is as follows : Step 1 Step 2 Remove the damaged sleeve by operating a longitudinal Clean the connection with a wire brush and a synthe-...
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Page 83: Process For Replacing A Compressor On Field
4.- MAINTENANCE 4.4.- PROCESS FOR REPLACING A COMPRESSOR ON THE FIELD When servicing these units, replacing the compressors is one of the most critical procedures. It should be done following this process: 1.- Unweld the discharge and suction lines of the refrigeration circuit. 2.- Unscrew the screws of the compressor rails. -
Page 84: Corrective Maintenance
4.- MAINTENANCE 4.5.- CORRECTIVE MAINTENANCE IMPORTANT MAKE SURE THAT THE UNIT IS COMPLETELY DISCONNECTED FROM THE POWER SUPPLY WHEN CARRYING OUT ANY TYPE OF WORK ON THE MACHINE. If some component in the cooling circuit must be replaced, follow these recommendations: •... -
Page 85: Failure Diagnosis
4.- MAINTENANCE 4.6.- FAILURE DIAGNOSIS PROBLEM CAUSE ACTION • • Disconnected supply. Check electrical supply. • • Main switch set to STOP. Connect main switch. • • No water flow. Start water pump (and check air in • system). Fuses are broken. •... - Page 86 NOTES Installation manual / eCOMFORT R32-MIL166E-0222 - 09/2022 • 84 •...
- Page 88 LENNOX DISTRIBUTION LENNOX DISTRIBUTION +33 4 72 23 20 20 +33 4 72 23 20 20 Due to LENNOX EMEA ongoing commitment to quality, the specifications, ratings and dimensions are subject to change without notice and without incurring liability. Improper installation,...