Related Manuals for Lennox DUCTAIR II
Summary of Contents for Lennox DUCTAIR II
- Page 1 Installation, operating and maintenance DUCTAIR™ II Providing indoor climate comfort DUCTAIR II-IOM-0808-E...
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Page 3: Table Of Contents
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 the operation of this product), reproduced, issued to or made available to third parties without the prior written agreement of Lennox . -
Page 4: Installation
Do not install the remote controller in a place exposed to direct sunlight or close to a heating source, such as a stove . • Note that the positive and negative poles are in right positions when loading batteries . • 2 • DUCTAIR II - 0808-E... -
Page 5: Installation Place
For detailed installation acceptance, please refer to your contract with the power supplier if restrictions do apply for products like washing machines, air conditioners or electrical ovens . For power details of the air conditioner, refer to the rating plate of the product . For any question contact your local dealer . • 3 • DUCTAIR II - 0808-E... -
Page 6: Indoor Unit Installation
Overhang the indoor unit onto the hanging screw bolts with block . Position the indoor unit in a flat level by using the level indicator, unless it may cause leakage . Washer Overhang part Hanging screw bolt Chart 5 • 4 • DUCTAIR II - 0808-E... - Page 7 Enough room for installation and maintenance . Air outlet (on side) Water outlet Ø25 Refrigerant piping joint Refrigerant piping joint (gas side) (gas side) Air outlet sketch map BÏ Φ100 Fresh air inlet AÏ Ceiling >500mm >500mm • 5 • DUCTAIR II - 0808-E...
- Page 8 380 400 430 9, 2,7 293,8 Note: • The dimension of sizes 24 and 36 (3 phases) are the same • The dimension of sizes 30 and 36 ( phase) are the same • 6 • DUCTAIR II - 0808-E...
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Page 9: Panel Installation
Canvas air passage Canvas air passage Screw Ceiling Ceiling Outside frame Chart 2 Chart 3 Hook Waist-shaped hole fixed board (Reverse side) Outside frame Outside frame Inside frame Air inlet Bend Chart 4 Chart 5 • 7 • DUCTAIR II - 0808-E... -
Page 10: Outdoor Unit Installation
. Leave open two of three directions A , B, C . Chart 6 Size of outdoor unit Chart 7 Chart 8 Chart 9 Model 245 245 • 8 • DUCTAIR II - 0808-E... - Page 11 . Obstacle (Wall or obstacle) Air inlet Fix with bolt Air inlet >60cm Air outlet Deep Necessary width foundation Chart 20 Chart 2 • 9 • DUCTAIR II - 0808-E...
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Page 12: Commissioning
Cover the joint of the connecting pipe to the indoor unit with the soundproof/insulating sheath (fittings), and bind it well with the tapes to prevent leakage . Use frozen oil Bend the pipe with thumb Make the ends straight Chart 30 Chart 3 Chart 32 • 0 • DUCTAIR II - 0808-E... -
Page 13: Expel The Air
. Ø 6,4 mm (144~176 kgf.cm) 32700~3990N.cm Ø 9,5 mm (333~407 kgf.cm) 4950~6030N.cm Ø 2,7 mm (504~616 kgf.cm) 61800~7540N.cm Ø 5,9 mm (630~770 kgf.cm) 9720~11860N.cm Ø 9, mm (990~1210 kgf.cm) Chart 37 • • DUCTAIR II - 0808-E... -
Page 14: Vacuum Dry And Leakage Checking
. When it falls Necessary vaccuum under outdoor temperature, the moisture in the pipe will be degree vaporized . • 2 • DUCTAIR II - 0808-E... - Page 15 Vacuum dry for the second time······1h pumping Determinant: Pass if achieving below -755mmHg . If -755mmHg can’t be achieved in 2h, repeat procedure • Vacuum placing test ······ 1h • Sketch map of special vacuum dry procedure • 3 • DUCTAIR II - 0808-E...
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Page 16: Check The Leakage
The horizontal drainpipe should be short . When the pipe is too long, a prop stand must be installed to keep the gradient of /00 and prevent bending. Refer to the following table for the specification of the prop stand. Diameter Distance between the prop stands Hard PVC pipe 25~40 mm 1,5~2 m • 4 • DUCTAIR II - 0808-E... - Page 17 The number of indoor units should be as small as possible to prevent the traverse main pipe overlong . Indoor unit with drain pump and indoor unit without drain pump should be in different drainage system . Air-ventilation 00 mm or above Gradient /00 or above • 5 • DUCTAIR II - 0808-E...
- Page 18 Seal The base Drain elbow Seal Drain elbow The base pan hole of pan hole of outdoor unit outdoor unit (Take size 36 as example) Chart 43 Chart 42 • 6 • DUCTAIR II - 0808-E...
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Page 19: Insulation Work
For construction convenience, before laying pipes, use insulation material to insulate the pipes to be deal with, at the same time, at two ends of the pipe, remain some length not to be insulated, in order to be welded and check the leakage after laying the pipes . • 7 • DUCTAIR II - 0808-E... - Page 20 The gas and liquid pipe should be heat insulated individually, the connecting part should be heat insulated individually . Use the attached heat-insulation material to insulate the pipe connections (pipes’ tie-in ,expand nut ) of the indoor unit • 8 • DUCTAIR II - 0808-E...
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Page 21: Wiring
Installing wiring chart, refer to link circuit chart for details Power Switch/Fuse (available locally) Power wiring (indoor) Ground wiring Strong elec-signal link wiring Weak elec-signal link wiring Grounding the air conditioner properly in case to affect its anti-inteference function Chart 47 • 9 • DUCTAIR II - 0808-E... - Page 22 5-core cable 5x2,0 mm² Air conditioner electric wiring chart Size 18 INDOOR UNIT POWER: 220-240V ~50 Hz (3-core cable 3x2,0 mm²) 5-core cable 5x2,0 mm² -core shield wire 1x0,5 mm² Air condition Link-Circuit Chart 48 • 20 • DUCTAIR II - 0808-E...
- Page 23 Air condition Link-Circuit Chart 49 Size 30 - 1 Phase INDOOR UNIT POWER: 220-240V ~50 Hz 3-core cable (3-core cable 3x2,5 mm² 3x2,5 mm²) 3-core cable 3x2,5 mm² -core shield wire 1x0,5 mm² Air condition Link-Circuit Chart 5 • 2 • DUCTAIR II - 0808-E...
- Page 24 2-core shield wire 2x0,5 mm² Air condition Link-Circuit Chart 50 Sizes 36 to 60 - 3 Phases INDOOR UNIT 5-core cable 5x2,5 mm² POWER: 380V 3N ~50 Hz (5-core cable 5x2,5 mm²) 3-core cable 3x1,0 mm² Air condition Link-Circuit Chart 52 • 22 • DUCTAIR II - 0808-E...
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Page 25: The Outdoor Unit
Whether the generated wind, noise, or condensed water by the air conditioner have influenced your neighborhood. Whether any of the refrigerant is leaked . Cautions: A protection feature prevents the air conditioner from being activated for approximately 3 minutes when it is restarted immediately after shut off . • 23 • DUCTAIR II - 0808-E... -
Page 26: Self-Diagnosis And Troubleshooting
Flash PHASE SEQUENCE ERROR Phase sequence error Change the order of two of the wires to power supply Switch on the unit again If the problem can not be solved, the outdoor PCB is defective • 24 • DUCTAIR II - 0808-E... - Page 27 Heat exchanger is dirty Outdoor fan or fan blade is defective Outdoor fan or fan blade is defective Outdoor unit is bad ventilation Outdoor unit is bad ventilation Refrigerant is two much Refrigerant is leakage • 25 • DUCTAIR II - 0808-E...
- Page 28 Annex , is it normal Replace the sensor Possible reasons: Air or other gas in the refrigerant Heat exchanger is dirty Outdoor fan or fan blade is defective Outdoor unit is bad ventilation Refrigerant is leakage • 26 • DUCTAIR II - 0808-E...
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Page 29: Clean
Inlet/oultet of indoor/outdoor units are blocked Clear all blockages, the restart the operation Be in 3 minutes protection of compressor Wait Note: Do not replace electric wire or repair the air conditioner by yourself to avoid possible danger • 27 • DUCTAIR II - 0808-E... -
Page 30: Troubles And Solutions Concerning The Remote Controller
. the ON/OFF button is pushed . ON/OFF button twice . Buttons on the remote controller don’t Press reset button . work . • 28 • DUCTAIR II - 0808-E... -
Page 31: Appendix : Indoor Temperature And Pipe Temperature Sensor Resistance Value Table
0 .2452 5 .348 2 .73823 0 .70944 0 .2396 4 .68 2 .63682 0 .68844 0 .23338 3 .980 2 .53973 0 .6688 0 .22776 3 .263 2 .44677 0 .64862 0 .2223 • 29 • DUCTAIR II - 0808-E... - Page 34 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.