Lennox INNOV DM R Series Application Manual Download Page 43

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INNOV@ ECFAN DHR -AGU-0912-E

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Model

A (mm)

B (mm)

CW version

DHCDR0300 - DHCUR0300
DHCDR0380 - DHCUR0380

1010

795

DHCDR0450 - DHCUR0450
DHCDR0550 - DHCUR0550

1270

795

DHCDR0400 - DHCUR0400
DHCDR0500 - DHCUR0500
DHCDR0650 - DHCUR0650
DHCDR0750 - DHCUR0750

1760

795

DHCDR0890 - DHCUR0890
DHCDR1090 - DHCUR1090

2020

795

DHCDR0900 - DHCUR0900
DHCDR1000 - DHCUR1000
DHCDR1200 - DHCUR1200

2510

795

DHCDR1500
DHCDR1800

2510

950

DHCDR2100

3160

950

Summary of Contents for INNOV DM R Series

Page 1: ...lennoxemeia com INNOV DM_R APPLICATION GUIDE Close control unit EC plug fan 6 22 kW INNOVA ECFAN DMR AGU 0912 E...

Page 2: ......

Page 3: ...le point 12 5 Electrical Connections 12 5 1 Generalities 12 6 Operating Diagrams 13 7 Start Up 14 7 1 Preliminary checks 14 8 Operating Parameters Setting 14 8 1 Generalities 14 8 2 Maximum pressure s...

Page 4: ...C Chilled water unit Dual cooling units In this case this is combination of unit with operating mode above and chilled water to work with chiller Which provide more safety to your installation D Direc...

Page 5: ...n firstly made looking to efficiency and reliability but don t loosing accessibility all components including e heaters fans compressors valve etc can be maintained from the front and furthermore the...

Page 6: ...steel in order to ensure long time operation without damages All panels are thermally insulated with a polyurethane foam class 1 according UL 94 norms this material thanks to the open cells gives good...

Page 7: ...box Cooling components DX versions D Molecular mesh activated alumina filter dryer D Flow indicator with humidity indicator Indications are provided directly on the sight glass D Thermostatic valve w...

Page 8: ...6 DP max kPa 250 250 200 Connections 3 4 3 4 3 4 All INNOV DM R CW units are supplied with 3 way valve setted by 3 points motor Upon request is possible to set an advanced precision control with 0 10...

Page 9: ...2 Chilled water outlet 3 3 way valve 4 Plug fan 5 Coil heat exchanger 6 Breather valve 1 Compressor 2 HP pressure switch 3 Pressure transmitter 4 Ball valve 5 Refrigerant filter 6 Sight glass 7 Thermo...

Page 10: ...eport describing every significant sign of damage 2 2 Lifting and transport While the unit is being unloaded and positioned utmost care must be taken to avoid abrupt or violent manoeuvres The unit mus...

Page 11: ...10 600 650 600 30 1875 DMCDR0140 900 650 600 30 1875 DMCDR0160 900 650 600 30 1875 DMCDR0200 900 650 600 30 1875 DMCDR0230 900 650 600 30 1875 DMADR0060 600 650 600 30 1875 DMADR0080 600 650 600 30 18...

Page 12: ...fied personnel only trained to do their job in accordance with current laws and regulations 4 1 Introduction The contemporaneous presence of liquid and vapour requires for both to be in a state of sat...

Page 13: ...t Refrigerants all tend to dissolve in oil compressor sump The Fig 8 illustrates a specific property Charles Law of gases which are more soluble in liquids as the pressure increases but less soluble a...

Page 14: ...Connections 5 1 Generalities Before carrying out any job on electrical parts make sure the power supply is disconnected Check that the mains electricity supply is compatible with the specifications v...

Page 15: ...agrams INNOV DM R DX direct expansion unit INNOV DM R CW chilled water unit Mod DMADR Downflow version Mod DMAUR Upflow version Mod DMAXR Displacement version Mod DMCDR Downflow version Mod DMCUR Upfl...

Page 16: ...compressors it should be warm or in any case at a temperature 10 15 C higher than the ambient temperature Fig 10 Charles law diagram The diagram above illustrates a specific property of gases Charles...

Page 17: ...h The low pressure switch stops the compressor when the inlet pressure falls below the set value for more than 120 seconds The switch is automatically reset when the pressure rises above the set diffe...

Page 18: ...ns of deterioration Every 6 mos Check the refrigerant level by means of the liquid level indicator Every 6 mos Check the efficiency of the differential air pressure switch and dirty filter differentia...

Page 19: ...rotation speeds are selected with different values of the control tension 0 10V If in the unit is present the advanced control the right value of the control tension is set by the keyboard present in...

Page 20: ...ree Cooling Filter Heater 79 220 360 501 Free Cooling Filter Add coil 67 208 318 489 DMADR 100 110 1 V 2 V 3 V 4 V 5 V 6 V 7 V 8 V 9 V 10 V Basic Filter 144 308 473 Basic Filter Heater 129 293 458 Bas...

Page 21: ...to use a pump capable of generating a high degree of vacuum i e 150 Pa of absolute pressure with a capacity of approximately 10 m3 h If such a pump is available one evacuation will normally suffice t...

Page 22: ...the greenhouse effect and thus falls within the scope of the aforesaid regulations Therefore special care should be taken when carrying out maintenance work to minimise refrigerant leaks 10 Starting U...

Page 23: ...e temperature indicated by a contact thermometer placed on the condenser outlet pipe 2 read the temperature indicated on the scale of a pressure gauge connected to the liquid inlet at the condenser ou...

Page 24: ...hen recharge in the liquid phase Unit overcharged as revealed by a Sub cooling of more than 8 C Drain the circuit Thermostatic valve and or filter obstructed These symptoms may also occur in the prese...

Page 25: ...0 51 0 47 1 05 1 19 1 19 Power consumption W 151 203 315 315 291 652 743 743 AESP Pa 30 AESP max fan speed Pa 557 505 477 477 453 174 144 144 FILTER SECTION Filter efficiency G3 Overall surface m2 2...

Page 26: ...50 1 05 1 19 1 19 Power consumption W 163 215 337 337 310 652 743 743 AESP Pa 30 AESP max fan speed Pa 550 531 473 473 453 174 144 144 FILTER SECTION Filter efficiency G3 Overall surface m2 2 2 2 2 3...

Page 27: ...Nominal current A 0 28 0 36 0 64 0 64 0 58 1 23 1 34 1 34 Power consumption W 175 226 397 397 360 768 834 834 AESP Pa 30 AESP max fan speed Pa 537 486 441 441 418 138 138 138 FILTER SECTION Filter ef...

Page 28: ...0 54 0 54 0 50 1 05 1 19 1 19 Power consumption W 163 215 337 337 310 652 743 743 AESP Pa 30 AESP max fan speed Pa 550 531 473 473 453 174 144 144 FILTER SECTION Filter efficiency G3 Overall surface m...

Page 29: ...400V 3Ph 50Hz Fans Nr 1 Nominal current A 0 34 0 39 0 63 0 64 0 91 1 03 Power consumption W 211 245 395 397 564 643 AESP Pa 30 AESP max fan speed Pa 506 473 432 401 174 144 FILTER SECTION Filter effic...

Page 30: ...IUM AND LUXEMBOURG FRANCE GERMANY ITALY NETHERLANDS POLAND PORTUGAL Due to Lennox s ongoing commitment to quality the specifications ratings and dimensions are subject to change without notice and wit...

Page 31: ...lennoxemeia com INNOV DH_R APPLICATION GUIDE Close control unit EC plug fan DX 20 120 kW CW 30 236 kW INNOVA ECFAN DHR AGU 0912 E...

Page 32: ......

Page 33: ...he unit 14 4 3 Evacuating a circuit contaminated with refrigerant 15 4 4 Charging positions single point 15 5 Electrical Connections 16 5 1 Generalities 16 6 Operating Diagrams 17 7 Start Up 18 7 1 Pr...

Page 34: ...Free cooling C Chilled water unit Dual cooling units In this case this is combination of unit with operating mode above and chilled water to work with chiller Which provide more safety to your instal...

Page 35: ...IT devices The internal design of the units in firstly made looking to efficiency and reliability but don t loosing accessibility all components including e heaters fans compressors valves etc can be...

Page 36: ...time operation without damages All panels are thermally insulated with a polyurethane foam class 1 according UL 94 norms this material thanks to the open cells gives good performances in sound absorpt...

Page 37: ...qualization and integrated MOP function or electic valve optional High and low pressure switches Schrader valves for checks and or maintenance Electric control board Electric control board The electri...

Page 38: ...ressure switch 12 Flooding valve 3 Pressure transmitter Opt 13 Safety valve 4 Ball valve 14 Check valve 5 Refrigerant filter 15 Solenoid valve 6 Sight glass 16 Hot gas coil Opt 7 Thermostatic valve 17...

Page 39: ...on Pos Description 1 Compressor 9 LP pressure switch 2 HP pressure switch 10 Liquid receiver 3 Pressure transmitter Opt 11 Condenser coil 4 Ball valve 12 Flooding valve 5 Refrigerant filter 13 Safety...

Page 40: ...e hazardous situations during installation and maintenance work Failure to comply with the rules provided in this manual or any modification made to the unit without prior authorisation will result in...

Page 41: ...t or similar conveyance means should be used 2 3 Unpacking The packing must be carefully removed to avoid the risk of damaging the unit Different packing materials are used wood cardboard nylon etc It...

Page 42: ...95 DHADR0401 DHAUR0401 DHADR0272 DHAUR0272 DHADR0302 DHAUR0302 DHADR0362 DHAUR0362 DHADR0422 DHAUR0422 DHADR0452 DHAUR0452 1760 795 DHADR0532 DHAUR0532 DHADR0592 DHAUR0592 2020 795 DHADR0602 DHAUR0602...

Page 43: ...DHCDR0450 DHCUR0450 DHCDR0550 DHCUR0550 1270 795 DHCDR0400 DHCUR0400 DHCDR0500 DHCUR0500 DHCDR0650 DHCUR0650 DHCDR0750 DHCUR0750 1760 795 DHCDR0890 DHCUR0890 DHCDR1090 DHCUR1090 2020 795 DHCDR0900 DH...

Page 44: ...e area Model A mm B mm C mm D mm E mm CW version DHCDR0300 DHCUR0300 DHCDR0380 DHCUR0380 1010 750 795 10 1998 DHCDR0450 DHCUR0450 DHCDR0550 DHCUR0550 1270 750 795 10 1998 DHCDR0400 DHCUR0400 DHCDR0500...

Page 45: ...DX version DHADR0201 DHAUR0201 DHADR0251 DHAUR0251 1010 750 795 10 1998 DHADR0281 DHAUR0281 DHADR0311 DHAUR0311 1270 750 795 10 1998 DHADR0401 DHAUR0401 DHADR0272 DHAUR0272 DHADR0302 DHAUR0302 DHADR0...

Page 46: ...liquid causing a cooling down of the liquid cooling of liquid thermal exchange with ambient air further evaporation of remaining iquid the original pressure in the tank will be restored after a certa...

Page 47: ...de the sump which results in considerable evaporation of the refrigerant previously dissolved in the oil If heating elements were not installed this phenomenon would cause two problems 1 The release o...

Page 48: ...t and local regulations An earth connection is mandatory The installer must connect the earthing wire using the earthing terminal situated on the electric control board yellow and green wire The power...

Page 49: ...INNOV ECFAN DHR AGU 0912 E 17 6 Operating Diagrams DISPLACEMENT DOWNFLOW UPFLOW...

Page 50: ...iagram above illustrates a specific property of gases Charles Law which are more soluble in liquids as the pressure increases but less soluble as the temperature increases if the oil in the sump is he...

Page 51: ...y a contact thermometer placed on the condenser outlet pipe 2 read the temperature indicated on the scale of a pressure gauge connected to the liquid inlet at the condenser outlet refer to the pressur...

Page 52: ...re switch Bar g 38 4 Manual Minimum pressure switch Bar g 2 0 1 5 Automatic Modul condensation control devices DX versions Bar g 18 10 Time lapse between two compressor starts s 480 8 2 Maximum pressu...

Page 53: ...by means of the liquid level indicator Every 6 months Check the efficiency of the differential air pressure switch and dirty filter differential pressure switch option Every 6 months Check the conditi...

Page 54: ...nt panels to access the air filter compartment Pull out the air filter Check the condition of the filter and replace it if necessary Open the front panels to access the air filter compartment Remove t...

Page 55: ...low with the real external pressure drops in case of wrong selection the air flow may exceed the limits with possible water dragging out from the coils down flow units or in case of DC units a not suf...

Page 56: ...e Filter Heater 58 7 139 7 220 7 301 7 382 7 Base Filter Add coil 72 4 153 4 234 4 315 4 396 4 Freecooling Filter 76 5 157 5 238 5 319 5 400 5 Freecooling Filter Heater 38 3 119 3 200 3 281 3 362 3 Fr...

Page 57: ...SAE inlet situated on the liquid line after discharging a little gas to eliminate air in the connection pipe Fill with refrigerant in liquid form until you reach 75 of the total charge For monobloc u...

Page 58: ...e the trasducer Wrong sentting of the condensation control device Check the efficiency of the condensation control device optional Low evaporation pressure Malfunctioning of thermostatic valve Warming...

Page 59: ...Ph Hz 400V 3Ph 50Hz Fans Nr 1 2 Current consumption A 1 61 2 01 1 53 Power consumption W 1007 1252 956 AESP Pa 30 AESP max fan speed Pa 367 5 298 4 382 2 FILTER SECTION Filter efficiency G4 Overall s...

Page 60: ...ly V Ph Hz 400V 3Ph 50Hz Fans Nr 2 Current consumption A 4 3 4 4 Power consumption W 2500 2595 2600 AESP Pa 30 AESP max fan speed Pa 425 355 FILTER SECTION Filter efficiency G4 Overall surface m 2 2 9...

Page 61: ...Hz 400V 3Ph 50Hz Fans Nr 3 Current consumption A 4 36 4 93 Power consumption W 2718 3074 AESP Pa 30 AESP max fan speed Pa 274 2 363 0 FILTER SECTION Filter efficiency G4 Overall surface m 2 4 49 Fire...

Page 62: ...adial EC Power supply V Ph Hz 400V 3Ph 50Hz Fans Nr 2 3 Current consumption A 6 6 4 9 Power consumption W 3 9 2 9 AESP Pa 30 AESP max fan speed Pa 226 440 FILTER SECTION Filter efficiency G4 Overall s...

Page 63: ...m 2 1 SHR 0 88 0 87 0 84 0 79 0 86 FAN SECTION Type of fans Tipo Radial EC Fans Nr 1 2 Current consumption A 1 61 2 01 3 07 Power consumption W 1007 1252 1912 AESP Pa 30 AESP max fan speed Pa 367 5 29...

Page 64: ...fins Type Hydrophilic Fin pitch mm 1 8 SHR 1 00 0 99 0 98 0 97 0 98 FAN SECTION Type of fans Tipo Radial EC Fans Nr 2 Current consumption A 4 3 4 4 Power consumption W 2500 2595 2600 AESP Pa 30 AESP m...

Page 65: ...79 0 76 0 85 0 80 0 76 FAN SECTION Type of fans Tipo Radial EC Fans Nr 2 3 Current consumption A 3 98 4 41 Power consumption W 2718 3074 AESP Pa 30 AESP max fan speed Pa 274 2 363 0 FILTER SECTION Fi...

Page 66: ...Fin pitch mm 2 1 SHR 0 88 0 83 FAN SECTION Type of fans Tipo Radial EC Fans Nr 2 3 Current consumption A 6 6 4 9 Power consumption W 3 9 2 9 AESP Pa 30 AESP max fan speed Pa 226 440 FILTER SECTION Fil...

Page 67: ...tch mm 2 1 SHR 0 88 0 87 0 84 0 79 0 86 FAN SECTION Type of fans Tipo Radial EC Fans Nr 1 2 Current consumption A 1 61 2 01 3 07 Power consumption W 1007 1252 1912 AESP Pa 30 AESP max fan speed Pa 367...

Page 68: ...Type of fins Type Hydrophilic Fin pitch mm 1 8 SHR 1 00 0 99 0 98 0 97 0 98 FAN SECTION Type of fans Tipo Radial EC Fans Nr 2 Current consumption A 4 3 4 4 Power consumption W 2500 2595 2600 AESP Pa 3...

Page 69: ...SHR 0 79 0 76 0 85 0 80 0 76 FAN SECTION Type of fans Tipo Radial EC Fans Nr 2 3 Current consumption A 3 98 4 41 Power consumption W 2718 3074 AESP Pa 30 AESP max fan speed Pa 274 2 363 0 FILTER SECT...

Page 70: ...hilic Fin pitch mm 2 1 SHR 0 88 0 83 FAN SECTION Type of fans Tipo Radial EC Fans Nr 2 3 Current consumption A 6 6 4 9 Power consumption W 3 9 2 9 AESP Pa 30 AESP max fan speed Pa 226 440 FILTER SECTI...

Page 71: ...3 1 6 1 6 1 8 2 8 3 Power consumption W 0 8 1 1 1 1 1 7 1 9 AESP standard fan Pa 30 AESP max fan speed Pa 402 350 228 205 390 3733 FILTER SECTION Filter efficiency G4 Overall surface m 2 1 7 1 7 2 4 2...

Page 72: ...5 Power consumption W 2 2 2 2 8 3 1 2 9 3 1 AESP standard fan Pa 30 AESP max fan speed Pa 356 321 167 134 366 349 FILTER SECTION Filter efficiency G4 Overall surface m 2 3 5 3 5 4 6 4 6 5 2 5 2 Fire r...

Page 73: ...2 3 Current consumption A 5 6 6 2 6 5 10 4 Power consumption W 3 5 3 9 4 1 6 5 AESP standard fan Pa 30 AESP max fan speed Pa 314 99 85 142 FILTER SECTION Filter efficiency G4 Overall surface m 2 5 2 5...

Page 74: ...IUM AND LUXEMBOURG FRANCE GERMANY ITALY NETHERLANDS POLAND PORTUGAL Due to Lennox s ongoing commitment to quality the specifications ratings and dimensions are subject to change without notice and wit...

Page 75: ...lennoxemeia com INNOV DM_C APPLICATION GUIDE Centrifugal close control unit 6 22 kW INNOVA CENT AGU 0912 E...

Page 76: ......

Page 77: ...ed with refrigerant 12 4 4 Charging positions single point 12 5 Electrical Connections 12 5 1 Generalities 12 6 Operating Diagrams 13 7 Starting Up 14 7 1 Preliminary checks 14 7 2 Starting operation...

Page 78: ...ree cooling C Chilled water unit Dual cooling units In this case this is combination of unit with operating mode above and chilled water to work with chiller Which provide more safety to your installa...

Page 79: ...made looking to efficiency and reliability but don t loosing accessibility all components including e heaters fans compressors valve etc can be maintained from the front and furthermore the door s are...

Page 80: ...g special tools and gives both a good aesthetic and advantages against injuries The compressor compartment is separated from the air flow and the special internal design allows the simple dismounting...

Page 81: ...ral to the customer satisfaction All DX unit A W F D Q versions are in single circuit execution and are prechargerd with dry nitrogen for A D or with R407C refrigerant for W F Q versions Refrigerant d...

Page 82: ...lter dryer D Flow indicator with humidity indicator Indications are provided directly on the sight glass D Thermostatic valve with external equalization and integrated MOP function D High and low pres...

Page 83: ...e controlled from a set of push buttons situated on the electric control board D Switching On Off of compressor to maintain the temperature set point T inside the shelter D Alarm management High Low p...

Page 84: ...r Upon request is possible to set an advanced precision control with 0 10 V signal regulation Air presence on hydraulic circuit It is necessary to leak air from the hydraulic circuit of unit after the...

Page 85: ...r must submit a written report describing every significant sign of damage 2 2 Lifting and transport While the unit is being unloaded and positioned utmost care must be taken to avoid abrupt or violen...

Page 86: ...DMAUC0130 900 449 DMADC0160 DMAUC0160 DMADC0190 DMAUC0190 DMADC0205 DMAUC0205 1200 449 DMADC0132 DMAUC0132 900 449 DMADC0162 DMAUC0162 DMADC0212 DMAUC0212 1200 449 CW version DMCDC0080 DMCUC0080 DMCD...

Page 87: ...600 650 449 30 1875 DMADC0080 DMAUC0080 600 650 449 30 1875 DMADC0100 DMAUC0100 900 650 449 30 1875 DMADC0110 DMAUC0110 900 650 449 30 1875 DMADC0130 DMAUC0130 900 650 449 30 1875 DMADC0160 DMAUC0160...

Page 88: ...ly Cable type Power supply Cable type DMCDC0080 230V 1Ph 50Hz 4 x 6 mm2 T 6 mm2 230V 1Ph 50Hz 4 x 6 mm2 T 6 mm2 DMCDC0110 DMCDC0140 4 x 10 mm2 T 6 mm2 DMCDC0160 4 x 10 mm2 T 6 mm2 DMCDC0200 DMCDC0230...

Page 89: ...down of the liquid D cooling of liquid thermal exchange with ambient air further evaporation of remaining liquid the original pressure in the tank will be restored after a certain period of time Fig...

Page 90: ...roblems 1 The release of refrigerant from the cooling circuit tends to cool down the oil and thus actually creates the opposite effect by keeping more refrigerant dissolved in the oil for this reason...

Page 91: ...tuations exceeding 5 and the unbalance between phases must always be below 2 The above operating conditions must always be complied with failure to ensure said conditions will result in the immediate...

Page 92: ...NT AGU 0912 E 16 6 Operating Diagrams Fig 11 Operating diagrams INNOV DM DX direct expansion unit Mod DMADC Downflow version Mod DMAUC Upflow version Mod DMAXC Displacement version Return air Conditio...

Page 93: ...gher than the ambient temperature Fig 12 Charles law diagram The diagram above illustrates a specific property of gases Charles Law which are more soluble in liquids as the pressure increases but less...

Page 94: ...g of the cooling fluid is limited to between 3 and 5 C to this end 1 read the temperature indicated by a contact thermometer placed on the condenser outlet pipe 2 read the temperature indicated on the...

Page 95: ...30 Differential air pressure switch dirty filter Pa 50 20 Values to be calibrated depending on the application Tab 7 Setting of safety control devices Control device Activation Differential Resetting...

Page 96: ...the units and secure them with the fastening screws provided 9 2 Periodical checks To guarantee a constantly satisfactory performance over time it is advisable to carry out routine maintenance and che...

Page 97: ...e air filter Remove the panel above the evaporator fan to access the damper and air filter compartment Pull out the air filter Check the condition of the filter and replace it if necessary Down Flow v...

Page 98: ...empty out the circuit before repairing the leaks with suitable alloys Do not use oxygen in the place of nitrogen as a test agent since this would cause a risk of explosion 9 5 Hard vacuum and drying...

Page 99: ...hree constituents Introduce refrigerant through the inlet in the liquid line A unit that was originally charged with R407C in the factory must not be charged with R22 or other refrigerants without the...

Page 100: ...echarge in the liquid phase Unit overcharged as revealed by a Sub cooling of more than 8 C Drain the circuit Thermostatic valve and or filter obstructed These symptoms may also occur in the presence o...

Page 101: ...y V Ph Hz 230V 1Ph 50Hz Fans Nr 1 2 Fans absorbed current A 1 2 1 6 3 2 3 8 Fans absorbed power W 173 282 563 668 AESP standard fan Pa 20 AESP high pressure fan option Pa 244 217 253 253 250 108 118 1...

Page 102: ...EVEL Sound pressure level dB A 46 48 48 49 51 52 53 53 DIMENSIONS Heigh x Lenght x Depth mm 1850x600x449 1850 x 900 x 449 1850 x 1200 x 449 Unit weight kg 150 157 195 210 230 245 255 257 At 1 5 meters...

Page 103: ...Hydrophilic Fin pitch mm 1 8 SHR 1 00 0 96 0 98 FAN SECTION INDOOR FAN Type Centrifugal Fans power supply V Ph Hz 230V 1Ph 50Hz Fans Nr 1 2 Fans absorbed current A 1 2 1 6 3 2 3 8 Fans absorbed power...

Page 104: ...EVEL Sound pressure level dB A 46 48 48 49 51 52 53 53 DIMENSIONS Heigh x Lenght x Depth mm 1875x600x449 1875 x 900 x 449 1875 x 1200 x 449 Unit weight kg 162 169 207 232 265 273 285 587 At 1 5 meters...

Page 105: ...ndard fan Pa 20 AESP high pressure fan option Pa 244 167 242 206 115 100 AIR FILTER SECTION Filter efficiency G3 Overall surface m2 2 2 3 6 5 0 Fire resistance class 1 ELECTRICAL HEATERS Total heating...

Page 106: ...LGIUM AND LUXEMBOURG FRANCE GERMANY ITALY NETHERLANDS POLAND PORTUGAL Due to Lennox s ongoing commitment to quality the specifications ratings and dimensions are subject to change without notice and w...

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