Related Manuals for Lennox AUD24AH2/A-D(U)
Summary of Contents for Lennox AUD24AH2/A-D(U)
- Page 1 Installation Instructions Original Instructions Air Conditioners Air Handlers Models: AUD24AH2/A-D(U) AUD36AH2/A-D(U) AUD48AH2/A-D(U) AUD60AH2/A-D(U)
- Page 2 To Users Thank you for selecting AC PRO’s product. Please read this instruction manual carefully before installing and using the product, so as to master and correctly use the product. In order to guide you to correctly install and use our product and achieve expected operating effect, we hereby instruct as below: This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and...
- Page 3 If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard. AC PRO assumes no responsibility for personal injury, property loss or equipment damage caused by improper installation and commissioning, unnecessary maintenance, or not following relevant national rules and regulations, industrial standards and requirements in this instruction manual.
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Page 5: Table Of Contents
Contents 1 Safety Precautions ............1 2 Product Introduction ............2 2.1 Product Description ..............2 2.2 Optional Accessories..............2 2.3 Physical Dimension ..............3 2.4 Names of Main Parts ..............4 2.5 General Information ...............4 2.6 Dip switch configuration ............5 Performance Data 2.7 Fan ............6 3 Preparative for Installation.......... - Page 6 7.2 Notice before Seasonal Use..........25 7.3 Maintenance after Seasonal Use ......... 25 7.4 Parts Replacement............... 25 8 After-Sales Service ............25 This marking indicates that this product should not be disposed with other household wastes throughout the EU. To prevent possible harm to the environment or human health from uncontrolled waste disposal, recycle it responsibly to promote the sustainable reuse of material resources.
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Page 7: Safety Precautions
Air Handlers 1 Safety Precautions This product can’t be installed at corrosive, inflammable or explosive environment or the place with special requirements, such as kitchen. Otherwise, it will affect the normal operation or shorten the service life of the unit, or even cause fire hazard or serious injury. -
Page 8: Product Introduction
Air Handlers Electrical shock hazard: Failure to follow this warning could result in personal injury or death. Before installing, modifying, or servicing system, main electrical disconnect switch must be in the OFF position. There may be more than 1 disconnect switch. Lock out and tag switch with a suitable warning label. -
Page 9: Physical Dimension
Air Handlers 2.3 Physical Dimension Clearance Side and back 0” Front 24” for servicing. Unit: inch Dimension Model UD24AH2/A-D(U) 21-1/4 21-1/4 48-1/4 11-5/8 AUD36AH2/A-D(U) AUD48AH2/A-D(U) 24-3/4 21-1/4 11-5/8 AUD60AH2/A-D(U) -
Page 10: Names Of Main Parts
Air Handlers 2.4 Names of Main Parts 2.5 General Information Model Cooling capacity(ton) Optional electric heater (kW) AUD24AH2/A-D(U) 5/8/10 AUD36AH2/A-D(U) 5/8/10 AUD48AH2/A-D(U) 10/15/20 AUD60AH2/A-D(U) 10/15/20 Motor @ 230V ~, 60Hz Model AUD24AH2/A-D(U) AUD36AH2/A-D(U) AUD48AH2/A-D(U) AUD60AH2/A-D(U) Unit: inch Model Filter size AUD24AH2/A-D(U) 19.29×20.31×.59 AUD36AH2/A-D(U) -
Page 11: Dip Switch Configuration
Air Handlers NOTES: ①. Based upon W/nominal tonnage, dry coil and filter should be installed. ②. Use 0.96 as approximate SCFM correction factor for wet coil. 2.6 Dip switch configuration Set the indoor fan speed through the eight dip switches of the indoor main control board. -
Page 12: Fan Performance Data
Air Handlers Model Level Heat (SA2) Cool (SA1) Level 1 Level 2 Level 3 Level 4-Default AUD60AH2/A-D(U) Level 5 Level 6 Level 7 Level 8 NOTE: 0 means dip switch to ‘on’, 1 means dip switch to number. 2.7 Fan Performance Data Model AUD24AH2/A-D(U) Static pressure(Inches W.C.) -
Page 13: Preparative For Installation
Air Handlers Model AUD48AH2/A-D(U) Static pressure(Inches W.C.) Level 0.15 Speed 1(CFM) 1640 1500 1450 1350 Speed 2(CFM) 1680 1560 1500 1380 1300 Speed 3(CFM) 1810 1690 1620 1550 1380 Speed 4(CFM) 1930 1830 1770 1710 1580 1430 1280 Speed 5(CFM) 2200 2110 2040 1980 1860 1720... -
Page 14: Important Safety Instructions
Air Handlers needed to complete the installation. Some items may need to be purchased locally. Make sure everything needed to install the product is on hand before starting. 3.1.3 Codes & Regulations This product is designed and manufactured to comply with national codes. It is installer’s responsibilities to install the product in accordance with such codes and/or any prevailing local codes/regulations. - Page 15 Air Handlers unit. Failure to follow these regulations may harm the environment and can lead to the imposition of substantial fines. These regulations may vary due to the passage of laws. A certified technician must perform the installation and service of this product. Should questions arise, contact your local EPA office.
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Page 16: Installation
Air Handlers Carbon monoxide producing devices (such as an automobile, space heater, gas water heater, etc.) should not be operated in enclosed areas such as unventilated garages, utility rooms or parking areas because of the danger of carbon monoxide (CO) poisoning resulting from the exhaust emissions. -
Page 17: Piping Work
Air Handlers elevate the unit with a sturdy, non-porous material. In installations that may lead to physical damage (i.e. a garage) it is advised to install a protective barrier to prevent such damage. This air handler is designed for a complete supply and return ductwork system. Do not operate this product without all ductwork attached. - Page 18 Air Handlers 4.3.2 Piping Preparation 4.3.2.1 Solder Connection All cut ends are to be round, burr free, and cleaned. Failure to follow this practice increases the chances for refrigerant leakage.
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Page 19: Condensate Removal
Air Handlers 4.3.2.2 Screw Connection Pipe diameter (inch) Tightening torque (N·m) Φ1/4 15-30 Φ3/8 35-40 Φ1/2 45-50 Φ5/8 60-65 Φ3/4 70-75 Φ7/8 80-85 4.4 Condensate Removal It is not allowed to connect the condensate drain pipe into waste pipe or other pipelines which are likely to produce corrosive or peculiar smell to prevent the smell from entering indoors or corrupt the unit. -
Page 20: Ductwork
Air Handlers 4.5 Ductwork This air handler is designed for a complete supply and return ductwork system. Do not operate the unit without all ductwork completed. Do not operate this product without all ductwork attached. Inadequate ductwork that restricts airflow can result in improper performance and compressor or heater failure. - Page 21 Air Handlers 4.6.1 Electric Heater Kits Available Description Ref. air handler use(ton) AHK-05C Circuit breaker, 5kW heat strip 2.0/3.0 AHK-08C Circuit breaker, 8kW heat strip 2.0/3.0 AHK-10C Circuit breaker, 10kW heat strip 2.0/3.0/4.0/5.0 AHK-15C Circuit breaker, 15kW heat strip 4.0/5.0 AHK-20C Circuit breaker, 20kW heat strip 4.0/5.0...
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Page 22: Electrical Installation
Air Handlers 10) Connection of power cords and thermostat wires. 4.7 Electrical Installation 4.7.1 Requirement and Notice on Electrical Installation The electrical installation for the air conditioner should observe the following requirements: ①. The electrical installation must be conducted by professionals in compliance with local laws and regulations and the instructions in this manual. - Page 23 Air Handlers ⑤. The external power cords, the thermostat wires and thermostat can’t directly contact any hot objects. For example: they must not contact chimney pipes, warm gas pipes or other hot objects. ⑥. The external power cords, the thermostat wires and thermostat must not be squeezed.
- Page 24 Air Handlers ①. Fuse is located on the main board. ②. Install a circuit breaker at every power terminal near the units (indoor unit and thermostat) with at least 0.11in contact gap. The units must be able to be plugged or unplugged.
- Page 25 Air Handlers 3) Use a round terminal fastener or clamp to fix the round terminal firmly on the peeled wire end. 4) Locate the round terminal conduit. Use a screwdriver to replace it and tighten up the terminal screw (as shown below). Unit:inch (3) How to connect the thermostat wires and power cords.
- Page 26 Air Handlers ④. Connect the wires firmly to the wiring box. Incomplete installation may lead to fire hazard. ⑤. Please use wire clamps to secure the external covers of connecting wires. (Insulators must be clamped securely; otherwise, electric leakage may occur.) ⑥.
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Page 27: Installation Check And Trial Run
Air Handlers NOTE: When outdoor defrosts, D of outdoor unit will send 24V signal to avoid cold winds. NOTE: When the electric heating operate, the indoor unit is forced to open the indoor unit fan. ①. High and low voltage wires should be led through different rubber rings of the electric box cover. -
Page 28: Trial Run
Air Handlers Problems might happen due to Items to be checked Check improper installation Check if the wiring and pipe line has Malfunction might happen and parts been installed correctly. might be burned. Check if the unit has been earthed Hazard of electricity leakage. -
Page 29: Common Malfunction And Elimination
Air Handlers 6 Common Malfunction and Elimination If the unit doesn’t run normally, please check the following items before ask for service. Phenomenon Reason Treatment The unit doesn’t connect with Connect with power power supply. supply. Check if circuit voltage The unit can not be Low voltage. - Page 30 Air Handlers “Malfunction” Reason Slight cracking sound It is noise when electronic is heard when just expansion valve initialization. turned on. There is consecutive That's sound for gas sound when cooling. refrigerant flowing in the unit. The unit emits noise. There is sound when That's sound for gas unit starts or stops.
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Page 31: Maintenance And Care
Air Handlers 7 Maintenance and Care Regular check, maintenance and care should be performed by professional personnel, which will prolong the unit life span. 7.1 Drain Pipe Regularly check if the drain pipe is clogged in order to drain condensate smoothly. 7.2 Notice before Seasonal Use Check if the inlet/outlet of the indoor unit is clogged. - Page 32 Add: 11700 Industry Ave., Fontana, CA 92337, USA Tel: 1-951-360-0630 E -mail: www.acpro.com...
- Page 33 X-Series Pre-Commissioning Checklist X-Series Pre-Commissioning Checklist Checklist to prepare for commissioning, use prior to commissioning unit Project Name : Checklist to prepare for commissioning, use prior to commissioning unit Model # Serial # Project Name : Model # Static Pressure: Serial # Existing Static Pressure Reading ( (Fill in):...
- Page 34 reversing valve is energized in heat. Start up guidelines Dip Switch Settings (Fill in): Once all of the above has been confirmed turn on the power to both the indoor and outdoor units, and set the system to cooling mode. Thermostat brand/model* (Fill in) : Let the system run for approximately 15 minutes.