Used Heat Cartridge for sale (15,859)

Year of construction: 2017, condition: excellent (used), REF: MM6476 1 x 2017 Packaging Automation Ltd Eclipse SL4 inline heat-sealing machine supplied with 1 x Packaging Automatic Ltd Eclipse C1 automated chain-and-peg conveyor system, 2 x interchangeable sets of tooling and some spare parts. Previously used to heat seal punnets of cauliflower and cauliflower/broccoli mix from multi-head weigher. Both machines on height adjustable feet. The Eclipse SL4 is a fully automatic inline tray-sealing machine designed for high-throughput food packaging applications. Suitable for sealing a wide range of pre-formed trays, the machine is ideal for use within the meat, poultry, seafood, ready meal, fresh produce, bakery, and convenience food sectors. The automated conveyor system provides continuous product handling, helping to improve production efficiency and throughput. Specification: Model of inline heat sealer - Eclipse SL4. Serial number - EC34-MC-00100. Nedpfx Aezrg T Ejh Sodc Model of indexing inline conveyor – Eclipse C1. Date of manufacture - 2017. Tooling - 2 x sets. Set 1: 4 x 1 format with arms. For punnets (double section) measuring 261mm L x 166mm W x 55mm D. Set 2: 4 x 1 format with arms (single punnet - in machine) measuring 177mm L x 140mm W x 55mm D. Eclipse C1 infeed conveyor belt (modular plastic belt section) - 300mm wide. Outfeed conveyor belt - 290mm wide, blue rubber. System footprint: Eclipse C1 indexing conveyor footprint - 3870mm L x 950mm W x 1050mm H. Eclipse SL4 inline sealer footprint - 3230mm L x 1050mm W x 2050mm H. Condition – Very good. This system was purchased new and run for approximately 6 months per year. Supplied with various spare parts, including cutters for both sets of punnets, spare belts, heater pads, etc. *Please note* - None of the following equipment pictured is included in the sale: multi-head chutes with sensors feeding the C1 infeed conveyor AND thermal transfer coder mounted on Eclipse SL4 inline sealer.

Condition: like new (used), 230V AC / 400W H 19M Ndsdpezfyylsfx Ah Soc Application: Machines manufactured by Lenhardt, Bystronic, etc. Length: 60 mm Diameter: 16 mm Weight: 168 g Condition: Like new

Condition: used, KMA Heat Exchanger and Pumping Station Ndodeym Dx Aepfx Ah Ssc

Year of construction: 2013, condition: ready for operation (used), Smipack BP800AS Monoblock automatic shrink wrapper with an inline infeed and a pneumatic sealing bar Maximum Output: Up to 12 packs per minute (ppm) Sealing Bar Size: 760 mm Product Maximum Height: 380 mm Maximum Pack Length: 1200 mm Maximum Film Reel Size: 750 x Ø 350 mm Max film width: 750 mm Advised Film: LDPE 20 – 100 µ Power Supply: 220–240 V / 380–415 V (3PH + PE / 3PH + N + PE, 50/60 Hz) Installed Power: 17,180 W Air Pressure: 6 Bar Required Air: 13 Nl/p (normal liters per pack) Machine Net Weight: 625 kg Machine Dimensions: 2840 x 1410 mm (Height: 2105 – 2265 mm) Key Features FLXMOD® control system with a 7-inch full-colour touch screen and PLC.Memory Can store up to 50 different working cycles. Tunnel Conveyor: Built with heat-resistant glass fiber bars that support up to 30 kg and prevent rust. Ndsdez Arh Aepfx Ah Sec Infeed: Motorized upper and lower film unwinding with inverter-controlled adjustable speed.

Condition: used, Unused approximately 15 square metre vertical shell and tube heat exchanger. Unit has approximately 17.4mm diamater x 2000mm long stainless steel 316 tubes. Unit has a design pressure of 6.0 bar / full vacuum shellside and 10.0 bar / full vacuum tubeside. Unit has a design temperature of 150°c. Unit has a stainless steel 316 shell approximately 2000mm diameter x 330mm straight side. Unit has mounted side support lugs for easy usage. Unit is designed to ASME VIII standard. Specifications: Surface Area: 15 m² Ndodpfx Ahsyh I Uhe Sjc Material of Shell: Stainless Steel Material of Tubes: Stainless Steel Shell Side Max. Pressure: 6 bar Shell Side Max. Temp.: 150°C Tube Side Max. Pressure: 10 bar Tube Side Max. Temp.: 150°C Configuration [Vertical/Horizontal]: Vertical Weight: Actual: Kg550.0 Dimensions: 650 X 3000

Year of construction: 2021, condition: used, Alfa Laval T10 Plate Heat Exchanger Industrial Alfa Laval gasketed plate heat exchanger, suitable for efficient heat transfer in industrial process applications. The unit consists of a plate pack mounted in a heavy-duty Alfa Laval frame with inlet and outlet connections. Nedpfsz Dix Esx Ah Sedc Product details: Manufacturer: Alfa Laval Type: T10 Equipment: Gasketed plate heat exchanger Quantity available: 2 units Heavy-duty steel frame Removable plate pack Multiple process connections Industrial configuration Condition: Used industrial surplus Both heat exchangers are available individually or together. The units are currently installed and can be inspected prior to purchase. Location: The Netherlands This equipment is industrial surplus and is sold as-is, without warranty or claims. Please contact us for additional information, dimensions, or to make an offer.

Year of construction: 2017, condition: good (used), Spirax Sarco PHS Easiheat Heat exchanger system Ndodez I Dv Hjpfx Ah Soc 2017, Pre assembled skid mounted packaged heat exchanger system, touch screen control, with Alfa Laval heat exchanger, see plates for all spec

Condition: used, Used Kleiser GmbH approximately 16sqmt horizontal shell and tube heat exchanger. Unit has (68) 316L stainless steel tubes approximately 3,000mm long x 25mm outside diameter, rated 6 bar design pressure at 100 deg.c. 316Ti stainless steel shell approximately 3,000mm long x 324mm diameter, rated 6 bar design pressure at 100 deg.c. (2) 316Ti stainless headers. Unit has 2 support mounts. Ndedpfx Ahsyh I Uns Sjc Specifications: Surface Area: 16 m² Material of Shell: Stainless Steel Material of Tubes: Stainless Steel Shell Side Max. Pressure: 6 bar Shell Side Max. Temp.: 100°C Tube Side Max. Pressure: 6 bar Tube Side Max. Temp.: 100°C Tube Diameter: 25 mm Number of Tubes: 68 Weight: Estimated: Kg 690.0

Year of construction: 1993, condition: used, A complete Pall cartridge filter unit with cleaning equipment is offered. Filter housing: Pall SFG7194GNW80, filter cartridge positions: 19, max. operating pressure: 10bar, max. operating temperature: 140°C, volume: 153l. 2) CIP tank: approx. 5hl, steam-heated. Including Hilge CIP pump, Pall water filter with 3 filter cartridges, complete piping, Kieselmann butterfly valves, digital Barby+Kühner thermometer, inlet and outlet pressure gauges as well as 10 stainless steel blind plugs for the cartridge mounts. Suitable for depth filter cartridges and membrane filter cartridges. An on-site inspection is possible. Nedpjz Atzqsfx Ah Sjdc

Condition: used, Large Industrial Plate Heat Exchanger – AISI 316 Stainless Steel Plates Heavy-duty industrial plate heat exchanger equipped with a large plate pack made of AISI 316 stainless steel. Product details: Equipment: Plate heat exchanger Plate material: AISI 316 stainless steel Large industrial plate pack Heavy-duty steel frame Flanged process connections Condition: Used industrial surplus Identification/marking: 316 The heat exchanger is dismantled and available from stock in Rotterdam, The Netherlands. Manufacturer, exact model, capacity and other technical specifications are currently unknown. Please refer to the pictures for the configuration and condition. This equipment is industrial surplus and is sold as-is, without warranty or claims. Please contact us for additional information or to make an offer. Nodpfxjz Di D Is Ah Sjdc

Condition: used, Year of construction: 2009, AI Overview A 13-meter tube-in-tube heat exchanger paired with a mono (progressive cavity) pump is a heavy-duty industrial setup designed for continuous heating or cooling of high-viscosity, abrasive, or fiber- and particulate-laden fluids (such as wastewater sludge, digestate, food purees, pulps, or industrial effluents). [1, 2, 3] Core System Components & Description Tube-in-Tube (Double-Pipe) Heat Exchanger (13 Meters): Design: Consists of a concentric layout where a smaller inner tube (often corrugated to boost turbulence and heat transfer) is nested inside a larger outer shell tube. Flow Configuration: The process fluid flows counter-currently through the inner tube, while the service/heating/cooling medium flows through the annular space between the inner and outer tubes. Length & Scale: A 13-meter run (frequently modular or multi-pass/series-connected units mounted on a skid frame) provides an extended thermal exchange surface area suited for duty points requiring significant temperature delta (Δ T) without clogging. Handling Solids: Ideal for fluids containing suspended solids, large particles, or fibers up to tens of millimeters that would choke standard plate heat exchangers. [1, 2, 3, 4, 5, 6] Mono Pump (Progressive Cavity Pump): Function: Acts as a positive-displacement feed pump that delivers a steady, controlled, low-shear flow rate of the product medium into the heat exchanger. Why it fits: Progressive cavity ("mono") technology prevents pulsation and handles abrasive, thick, or high-viscosity slurries smoothly without damaging sensitive cell structures or choking under backpressure. [1] Key Applications Wastewater and sewage sludge heating or cooling. Nsdpsz Ru Ersfx Ah Ssdc Viscous food-industry processing (sauces, pulps, creams, purees). Industrial effluent and dye-house waste heat recovery. Continuous thermal treatment requiring plug-flow characteristics and easy Clean-in-Place (CIP) maintenance Usage: Cooling or Heating of Viscous Products Previously Used on: Yoghurt and Juice Pastes Pump: Mono Pump Meters of Tube in Tube: 13 Condition: Very Good Available: Immediately

Condition: used, Year of construction: 2009, AI Overview A 13-meter tube-in-tube heat exchanger paired with a mono (progressive cavity) pump is a heavy-duty industrial setup designed for continuous heating or cooling of high-viscosity, abrasive, or fiber- and particulate-laden fluids (such as wastewater sludge, digestate, food purees, pulps, or industrial effluents). [1, 2, 3] Core System Components & Description Tube-in-Tube (Double-Pipe) Heat Exchanger (13 Meters): Design: Consists of a concentric layout where a smaller inner tube (often corrugated to boost turbulence and heat transfer) is nested inside a larger outer shell tube. Flow Configuration: The process fluid flows counter-currently through the inner tube, while the service/heating/cooling medium flows through the annular space between the inner and outer tubes. Length & Scale: A 13-meter run (frequently modular or multi-pass/series-connected units mounted on a skid frame) provides an extended thermal exchange surface area suited for duty points requiring significant temperature delta (Δ T) without clogging. Njdpfxez Ruxls Ah Sedc Handling Solids: Ideal for fluids containing suspended solids, large particles, or fibers up to tens of millimeters that would choke standard plate heat exchangers. [1, 2, 3, 4, 5, 6] Mono Pump (Progressive Cavity Pump): Function: Acts as a positive-displacement feed pump that delivers a steady, controlled, low-shear flow rate of the product medium into the heat exchanger. Why it fits: Progressive cavity ("mono") technology prevents pulsation and handles abrasive, thick, or high-viscosity slurries smoothly without damaging sensitive cell structures or choking under backpressure. [1] Key Applications Wastewater and sewage sludge heating or cooling. Viscous food-industry processing (sauces, pulps, creams, purees). Industrial effluent and dye-house waste heat recovery. Continuous thermal treatment requiring plug-flow characteristics and easy Clean-in-Place (CIP) maintenance Cooling: Yes Heating: Yes Temperatures: Depending on Connection Feed Pump: Mono Pump for Viscous Products CIP: This is cleaned through the CIP system Tube in Tube Legth: 13 meters including bends

Condition: good (used), Year of construction: 2015, functionality: fully functional, cooling capacity: 257.9 kW (350.65 HP), type of input current: three-phase, type of cooling: air, overall weight: 2,725 kg, input voltage: 400 V, total width: 2,200 mm, total length: 3,700 mm, total height: 2,100 mm, warranty duration: 6 months, heating capacity: 265.2 kW (360.57 HP), AIRCOOLED CHILLER / HEAT PUMP CIAT ILDC 1000V 257.9 KW/265.2 KW Cooling capacity: 257.9 kW / 73.33 tons (12/7 — 35°C) Heating capacity: 265.2 kW / 75.41 tons (40/45 —7°C) Year of manufacture: 2015 Options: Heat pump. Hydraulic module. Refrigerant circuit: 2 pcs. Heat exchanger: 2 pcs. Plate Condenser: Copper / Aluminum Compressors: 2 pcs. Copeland ZP385KCE-TWD-522 (scroll) + 2 pcs. Copeland ZP235KCE-TWD-522 (scroll) Type of refrigerant: R410A Number of fans: 4 pcs. Hydraulic module: 2 pcs. water pump Wilo DLP65/130-4/2, expansion vessel. Dimensions: 3.7x2.2x2.1 m Weight: 2725 kg Working hours: 2/2/2/2 h. Condition: Used, tested, fully operational CONDITION, TESTING & READINESS The chiller / kaltwassersatz / undergoes seven stages of technical inspection and operational parameter verification. It is also tested at our own test station, with connection to water (or glycol) and adjustment of parameters according to your requirements. After testing, you will receive a detailed report with the operating performance and the overall condition of the chiller. The chiller / kaltwassersatz / is ready for transport and commissioning. Our engineers will assist you with cooling capacity calculations, selection of the appropriate cooling scheme, and configuration of the required equipment options. WARRANTY & SUPPORT The quality of the equipment is confirmed with a warranty ranging from 6 to 36 months. Our company can also offer: - refrigerant charging; - replacement of oil and filters; - technical support. LOGISTICS - Worldwide delivery available - Support with loading, export documentation, and logistics coordination Ndjdpfx Ao Aa Rfxoh Sec Get a detailed consultation. Photos, videos, and a full testing report can be provided immediately upon request.

Condition: excellent (used), Year of construction: 2010, operating hours: 120 h, functionality: fully functional, power: 1,064 kW (1,446.64 HP), fuel type: gas, output frequency: 50 Hz, Jenbacher J320 GS CHP unit price includes dismantling and loading onto your trucks. Year: 2010 Power: 1064 KW Ndedpfxowd Nw Te Ah Ssc Frequency: 50hz Running hours: 120k (overhaul at 100k) reports available. Currently running Full tech data sheet available. Set in very good condition. Serviced and maintained by engineers. Contact for more info and pictures.

Condition: good (used), functionality: fully functional, BDC 100T Hydraulic Moulding Press | Heated Platen Compression Press BDC 100T hydraulic moulding press for sale with heated platens. Approx. 100 tonne compression press for rubber, plastics, composites and laminating applications. Manufacturer: BDC Machine Type: 100T Moulding Press with Heated Platens Condition: Decommissioned. Good 100 Tonne Heated Platen Compression / Moulding Press This BDC 100T Hydraulic Moulding Press is a heavy-duty industrial press designed for heated platen moulding, compression moulding, forming, bonding and laminating applications. This machine is suitable for use in rubber moulding, plastics processing, composites, bonding, pressing, laminating and heated forming operations, making it a versatile addition to manufacturing, production and specialist fabrication workshops. Key Features 100 tonne hydraulic press capacity Heated upper and lower platens Heavy-duty industrial construction Suitable for compression moulding and heated platen pressing Ideal for rubber, plastics, composites and laminated materials Hydraulic pressing action for controlled force application Well-suited to production, R&D and workshop environments Machine Description The BDC 100T Hydraulic Moulding Press is designed for applications requiring high pressure and controlled heat. The heated platens allow materials to be formed, cured, bonded or compressed under consistent pressure, making the machine suitable for a wide range of industrial moulding and manufacturing processes. Hydraulic moulding presses of this type are commonly used for rubber moulding, plastic compression moulding, composite forming, gasket production, bonded components, laminating, hot pressing and specialist materials processing. Approximate Technical Specification General Manufacturer: BDC Machine Type: Hydraulic moulding / compression press Press Capacity: 100 tonnes Press Action: Hydraulic Construction: Heavy-duty industrial press frame Rams: 1 Guides: 4 Platen Type: Heated platens Platen Arrangement: Upper and lower heated work platens Working Applications Compression moulding Rubber moulding Plastic moulding Composite pressing Laminating Hot pressing Bonding applications Heated platen forming Production and workshop moulding work Heated Platen System Heating: Heated platen system Platen Size: 510 x 510mm Temperature Control: Fitted with platen temperature control Platen Use: Suitable for controlled heat and pressure applications Press System Power: Hydraulic press system Force: Approx. 100 tonnes Operation: Hydraulic pressing cycle Ndedpfx Ahezi Hche Sec Pump Size: 2.2kW Ram Diameter: 190mm Distance Between Guides: 540mm (Width) Max Daylight: 250mm Typical Configuration: Heavy-duty hydraulic moulding press with heated work platens Summary The BDC 100T Hydraulic Moulding Press is a 100 tonne heated platen compression press used for rubber moulding, plastic compression moulding, composite pressing, laminating, bonding and hot press applications. It features hydraulic pressing action and heated platens, making it suitable for industrial manufacturing, workshop production and specialist materials processing. Important Notice Note: Specifications and information provided in this listing are supplied in good faith; however, their accuracy cannot be guaranteed. Specifications are approximate.

Condition: excellent (used), Automatic machine with product feed conveyor in line set up for manual loading of the product on the belt or inserted in completely automatic lines. Suitable for packaging individual or already packaged products such as boxes, trays, hanks of cable, parquettes, or light to very light products with a minimum height of 3mm such as boxes, linen, reams of paper, magazines, leaflets. In production up to 23.09.2026 Ndodpez D Uguefx Ah Ssc Price € 7,995.00 Quantity 2 machines available Shipping can be arranged for the buyer

Condition: excellent (used), Year of construction: 2008, operating hours: 84,000 h, functionality: fully functional, power: 526 kW (715.16 HP), type of cooling: air, input frequency: 50 Hz, Jenbacher J312GS hours: 84,000 hours overhaul at 60,000 hours. Year: 2008 Rated power: 526KW Frequency: 50HZ Very well looked after unit was installed in a hospital and serviced and maintained regularly. Ndsdpfxszwpnpj Ah Soc

Condition: used, This listing is for 1 of 2 Ortho Biovue System Heat block-32 Nsdpfx Aexzh Rkjh Sodc

Condition: used, Year of construction: 2008, operating hours: 110 h, functionality: fully functional, power: 834 kW (1,133.92 HP), fuel type: gas, Jenbacher J316 Bio Gas generator containerized set - Manufacturer: Jenbacher - Model: J316 - Hours 110k Njdpfx Ahsy S Ttbj Sjdc - Year of Manufacture: 2008 - Rated Output Power: 834 kW - Frequency: 50 Hz - Alternator: Stamford New alt installed 2017 -XT4 New turbo installed 2k hours ago. Contact for more info.

Condition: new, Year of construction: 2022, functionality: fully functional, type of input current: three-phase, power: 50 kW (67.98 HP), input voltage: 400 V, fuel: domestic gas H, overall weight: 2,200 kg, nominal power: 50 kW (67.98 HP), input frequency: 50 Hz, continuous power: 50 kW (67.98 HP), input current: 72 A, Equipment: documentation/manual, For sale: new and unused 2G g box 50plus combined heat and power (CHP) unit from 2022. This is a 2G Energietechnik g box 50plus, configuration as70 4, suitable for simultaneous generation of electricity and heat using natural gas. The unit has never been put into operation and is in new condition. At full load, the CHP unit delivers 50 kW of electrical power and approximately 104 kW of thermal power. The unit is designed for 400 V and 50 Hz and is equipped with a Liebherr G924 natural gas engine and a Leroy Somer LSAH 44.3 generator. Technical specifications: • Manufacturer: 2G Energietechnik GmbH • Type: g box 50plus • Configuration: as70 4 • ID number: H1214 • Year of manufacture: 2022 • Electrical power: 50 kW • Thermal power: approximately 104 kW • Rated voltage: 400 V • Rated frequency: 50 Hz • Rated current: 72 A • Weight of CHP module: approximately 2,200 kg • Fuel: natural gas • Electrical efficiency: approximately 34.5 percent Ndodpoz Hngmofx Ah Sjc • Thermal efficiency: approximately 71.8 percent • NOx emissions: less than 125 mg per Nm³ • Sound pressure level of CHP: approximately 55 dB(A) at 1 meter The offered package consists not only of the CHP module. The installation also includes two Viessmann boiler bodies, one Viessmann Proflame VM IV 3 gas burner, a separate control cabinet, and various flue gas components, fittings, and related documentation. The original new price of the complete installation was approximately €189,000. The installation comes from a project for which it was ultimately not used. The various main components are from 2022 and have been stored without being put into operation. Due to the size and composition of the installation, we advise interested parties to contact us in advance for further technical information, photos, documentation, and an overview of the components available. An inspection is, of course, possible (location: Winterswijk, Netherlands). Loading onto the buyer's transport vehicle is possible on site.

Condition: excellent (used), Year of construction: 2022, functionality: fully functional, heat output: 80 kW (input) heating capacity: 64 kW air flow rate: 3500 m3/h Ndsdpfx As Abbbmjh Ssc fan motor power: 0.5 kW fuel: solid fuel of wood origin weight: 305 kg year of manufacture: 2022 voltage: 230 V dimensions: length 156 cm, width 72 cm, height 174 cm

Condition: good (used), Year of construction: 2013, Grote 16L Heated butter pump 2013, stainless, 16L heated butter pump, agitated hopper, discharge screw, mobile, 3Ph Njdpfsy R El Hjx Ah Sodc

Condition: good (used), Year of construction: 2019, functionality: fully functional, cooling capacity: 95 kW (129.16 HP), type of input current: three-phase, type of cooling: water, overall weight: 729 kg, input voltage: 400 V, total width: 920 mm, total length: 2,430 mm, total height: 1,060 mm, warranty duration: 6 months, heating capacity: 130 kW (176.75 HP), WATERCOOLED CHILLER/HEAT PUMP DAIKIN EWHQ120G 95/130 kW Cooling capacity: 95 kW - 27 ton (12/7°C — 35°C) Heating capacity: 130 kW - 36.9 ton (40/45°C - 7°C) Year of manufacture: 2019 Refrigerant circuit: 1 pcs. Heat exchanger: Plate Options: Heat pump Type of refrigerant: R410A Compressors: 2 pcs. Copeland(scroll) Dimensions: 2,432 х 0,928 х 1,066 m. Weight: 729 kg. Working hours: 11437 / 4712 h. Condition: Used, tested, fully operational CONDITION, TESTING & READINESS The chiller / kaltwassersatz / undergoes seven stages of technical inspection and operational parameter verification. It is also tested at our own test station, with connection to water (or glycol) and adjustment of parameters according to your requirements. Ndsdpjy U U Tujfx Ah Sec After testing, you will receive a detailed report with the operating performance and the overall condition of the chiller. The chiller / kaltwassersatz / is ready for transport and commissioning. Our engineers will assist you with cooling capacity calculations, selection of the appropriate cooling scheme, and configuration of the required equipment options. WARRANTY & SUPPORT The quality of the equipment is confirmed with a warranty ranging from 6 to 36 months. Our company can also offer: - refrigerant charging; - replacement of oil and filters; - technical support. LOGISTICS - Worldwide delivery available - Support with loading, export documentation, and logistics coordination Get a detailed consultation. Photos, videos, and a full testing report can be provided immediately upon request.

Condition: used, This listing is for the HAWO HPL 500 Del Rotary Heat Sealer The unit is in full working condition and is ready for immediate use The HAWO HPL 500 D-V machines are considered to be best in class rotary heat sealers designed specifically for the industrial, medical and healthcare markets. Nsdpfx Aexhgcxoh Sodc The machines produce consistent and optimal seals for sensitive goods

Condition: used, Year of construction: 2015, operating hours: 38,000 h, functionality: fully functional, power: 70 kW (95.17 HP), 1. HKW Kuntschar + Schlüter GTK70 (70 kW electrical, MAN E0836E engine, year of manufacture 2015, in use from Q1 2020, approx. 38,000 hours, manufacturer overhaul, regular full maintenance by the manufacturer, maintenance documentation available for inspection, fully functional, out of service since 10/12/2026. Current maintenance is pending. 2. Gas condensing boiler Wolf MGK-2-470 (~200 kW real load, max. 467 kW, approx. 11 years old), used as a peak load boiler. 3. Buffer tank approx. 8,000 liters (with insulation, approx. 11 years old). Nsdpfxsz Tdfge Ah Sjdc 4. Expansion tank Reflex Type N600 (600 liters): On request: Soundproof enclosure (multi-layer panels, steel frame, approx. 60 m², outdoor installation, supply/exhaust air).