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Air Handler Models :
OAHX1-H24A-I
OAHX1-H36A-I
OAHX1-H48A-I
OAHX1-H60A-I
French version available only
in digital form. Scan the QR
code on page 6 to access it.
Owner's Manual
Flexx
Air Handler
Please read this owner's manual carefully
before operating the unit and keep it for
future reference.
Outdoor Models :
OFLX1-H24A-O
OFLX1-H36A-O
OFLX1-H48A-O
OFLX1-H60A-O
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Related Manuals for Ouellet Flexx OAHX1-H24A-I
Summary of Contents for Ouellet Flexx OAHX1-H24A-I
- Page 1 Owner’s Manual Flexx Air Handler Air Handler Models : Outdoor Models : OAHX1-H24A-I OFLX1-H24A-O OAHX1-H36A-I OFLX1-H36A-O OAHX1-H48A-I OFLX1-H48A-O OAHX1-H60A-I OFLX1-H60A-O French version available only in digital form. Scan the QR code on page 6 to access it. Please read this owner’s manual carefully before operating the unit and keep it for future reference.
- Page 2 To Users 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: (1) This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and...
- Page 3 Exception Clauses Manufacturer will bear no responsibilities when personal injury or property loss is caused by the following reasons: Damage the product due to improper use or misuse of the product. Alter, change, maintain or use the product with other equipment without abiding by the instruction manual of manufacturer.
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Page 4: Table Of Contents
Contents 1 Safety Precautions ............1 2 Product Introduction ............3 2.1 Product Description ..............3 2.2 Operating Range ..............4 2.3 Physical Dimension ..............4 2.4 Names of Main Parts ..............5 2.5 General Information ...............6 2.6 Refrigerant charge ..............6 2.7 Dip Switch Configuration ............7 2.8 Fan Performance Data ............8 3 Preparative for Installation .......... - Page 5 7.1 Drain Pipe ................32 7.2 Notice before Seasonal Use..........32 7.3 Maintenance after Seasonal Use ......... 32 7.4 Parts Replacement............... 32 7.5 Unventilated Areas ............... 33 8 After-Sales Service ............33 9 Qualification of Worker ........... 33 10 Transportation, Marking and Storage for Units that Employ Flammable Refrigerants ........
- Page 6 12 Sealed Electrical Components shall be Replaced ..38 13 Intrinsically Safe Components must be Replaced ..38 14 Cabling ................38 15 Detection of Flammable Refrigerants ......38 16 Removal and Evacuation ..........39 17 Charging Procedures ............ 40 18 Decommissioning ............
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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 Air Handlers Appliance filled with flammable magas R32. Before install the appliance, read the installation manual first. Before use the appliance, read the owner’s manual first. Before repair the appliance, read the service manual first. Do not use means to accelerate the defrosting process or to clean，other than those recommended by the manufacturer.
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Page 9: Product Introduction
Air Handlers OSHA Guidelines for safety. Products that contain or produce any of the more than 600 listed chemicals known in California can cause cancer or birth defects, such as fiberglass insulation, lead in brass and natural gas combustion products. Warnings are issued for such products sold in California as required by California Proposition 65. -
Page 10: Operating Range
Air Handlers operating efficiency, operating sound levels and value for money. The condensing unit uses the environmentally friendly refrigerant R32, which is chlorine-free to help prevent damage to the ozone layer. This product cannot be used in combination with other products, otherwise it may cause performance, reliability and safety problems. -
Page 11: Names Of Main Parts
Air Handlers 2.4 Names of Main Parts 2.4.1 Vertical installation 2.4.2 Lying installation NOTE: When installing as shown in the figure, the refrigerant sensor needs to be installed in the position shown in the figure, remove the fixing screws of the refrigerant sensor and adjust the internal wiring to ensure that the inner wiring will not meet the sharp side. -
Page 12: General Information
Air Handlers NOTES: If the refrigerant sensor is damaged, replace the refrigerant sensor as follows: ①. Remove the lower front side panel. ②. Remove the fixing screws of the refrigerant sensor. ③. Replace the refrigerant sensor with a new one. The service life of the refrigerant sensor is fifteen years and The refrigerant sensor of the refrigerant detection system can only be replaced with the particular sensor which is specified by the manufacturer. -
Page 13: 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. ③. The room area is calculated according to the height of 2.2m. Minimum room height is 2.2m ④. -
Page 14: Fan Performance Data
Air Handlers the actual delay and shutdown time of the fan is equal to the thermostat setting time plus the fan delay time of the indoor unit. Model Level Heat (SA2) Cool (SA1) Level 1 Level 2 Level OAHX1-H24A-I 3-Default Level 4 Level 5 Level 1... - Page 15 Air Handlers Model OAHX1-H24A-I Static pressure: inwg(Pa) Level 0.15 (25) (37) (50) (75) (100) (125) (150) (175) (200) (225) (250) Speed 1380 1250 1120 1070 1020 920 — — — — — 3(CFM) Speed 1700 1630 1580 1530 1450 1400 1370 1270 1150 970 —...
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Page 16: Preparative For Installation
Air Handlers Model OAHX1-H60A-I Static pressure: inwg(Pa) Level 0.15 (25) (37) (50) (75) (100) (125) (150) (175) (200) (225) (250) Speed 1850 1720 1650 1600 — — — — — — — — 1CFM) Speed 1920 1800 1730 1650 1480 —... -
Page 17: Important Safety Instructions
Air Handlers responsibilities for equipment installed in violation of any codes or regulations. 3.1.4 Replacement Parts When reporting shortages or damages, or ordering repair parts, give the complete product model and serial numbers as stamped on the product. Replacement parts for this product are available through your contractor or local distributor. - Page 18 Air Handlers Due to high system pressure and electrical shock in potential, installation and service work can be dangerous. Only trained and qualified persons are permitted to install or service this equipment. Observe all warnings contained in this manual and labels/tags attached to the equipment. This product factory...
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Page 19: Installation
Air Handlers or air handler is installed in an enclosed area such as a garage, utility room or parking area and a carbon monoxide producing device is operated therein, there must be adequate ventilation directly to outside. This ventilation is necessary to avoid the danger of CO poisoning which can occur if a carbon monoxide producing device continues to operate in the enclosed area. - Page 20 Air Handlers refrigerant tubing as much as possible. Do not install the air handler in a location either above or below the condenser that violates the instructions provided with the condenser. Service clearance is to take precedence. Allow a minimum of 24” in front of the unit for service clearance.
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Page 21: Piping Work
Air Handlers 4.3 Piping Work 4.3.1 Specification of Connection Pipe External diameter (inch) Model Gas pipe Liquid pipe OAHX1-H24A-I OAHX1-H36A-I Φ3/4 Φ3/8 OAHX1-H48A-I OAHX1-H60A-I 4.3.2 Piping Preparation The connection of the gas pipe and the connection of the liquid pipe are screw connections. -
Page 22: Condensate Removal
Air Handlers 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 23 Air Handlers Sheet metal ductwork run in unconditioned spaces must be insulated and covered with a vapor barrier. Fibrous ductwork may be used if constructed and installed in accordance with SMACNA Construction Standard on Fibrous Glass Ducts. Ductwork must comply with National Fire Protection Association as tested by U/L Standard 181 for Class I Air Ducts.
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Page 24: Electric Heater
Air Handlers 4.6 Electric Heater The air handlers listed in this manual do not have factory installed electric heat. Electric heat is available as an accessory. Please refer to installation instructions provided with heater kit for the correct installation procedure. Refer to the “Electric heater kits installation”... - Page 25 Air Handlers 4.6.2 Electric Heater Kits Installation Ensure that all power supply is disconnected prior to installing the heater kit. A means of strain relief and conductor protection must be provided at the supply wire entrance into cabinet. Use copper conductors only. Installation must follow national electric code and other applicable codes.
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Page 26: Electrical Installation
Air Handlers 11) 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 27: Electrical Parameters
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 28 Air Handlers ③. Circuit breaker and power cord specifications listed in the above table are determined based on the maximum power input of the units. ④. Specifications of circuit breaker are based on a working condition where the working temperature is 40°C. If working condition changes, please adjust the specifications according to national standards.
- Page 29 Air Handlers Unit: mm(inch) (3) How to connect the thermostat wires and power cords. Lead the thermostat wires and power cords through the insulation tube. Then fix the wires with wire clamps (as shown in the following figure.) ①. Before working, please check whether the indoor unit and thermostat are powered on.
- Page 30 Air Handlers ⑥. Ground wire should be connected. Electrical wiring of indoor units (Only for air handler without electric heater) OAHX1-H24A-I OAHX1-H36A-I OAHX1-H48A-I OAHX1-H60A-I Electrical wiring of indoor units...
- Page 31 Air Handlers OAHX1-H24A-I OAHX1-H36A-I OAHX1-H48A-I OAHX1-H60A-I (only for air handler with BLR 6000W/240V BLR)
- Page 32 Air Handlers OAHX1-H36A-I, OAHX1-H48A-I, OAHX1-H60A-I (only for air handler with BLR 9000W/240V or 12000W/240V) NOTE: Y means Compressor control signal for the outdoor unit. B which is energized under the heating mode means 4-way valve control signal. D means defrosting signal. R means 24V AC power supply.
- Page 33 Air Handlers G means indoor unit fan signal for the indoor unit. W2/AUX means heater control signal. L means refrigerant leakage protection signal. DH means Initial signal. Y1 means thermostat and compressor output signals. H1/H2 means RS485 communication. NOTE: For cooling only unit, there is no need to connect the B and D terminals. NOTE: When outdoor defrosts, D of outdoor unit will send 24V signal to avoid cold winds.
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Page 34: Installation Check And Trial Run
Air Handlers 5 Installation Check and Trial Run 5.1 Checking Items after Installation Problems might happen due to Items to be checked Check improper installation Check if each parts of the unit have The unit might fall off, vibrate or emit been installed reliably. -
Page 35: Common Malfunction And Elimination
Air Handlers 5.2.2 Trial Run Trial run can be operated by professional personnel only after above items have been checked (items to be checked as per actual condition). Power on the unit and press ON/OFF button to activate. After compressor starting up, please immediately stop the unit when abnormal sound emits. - Page 36 Air Handlers Following circumstances are not malfunction. “Malfunction” Reason When unit is started Overload protection switch immediately after it is makes it run after 3 minutes just turned off. delay. Unit doesn’t run. When power is turned Standby operating for about 1 minute.
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Page 37: Led Indicator
Air Handlers LED indicator Color Function When detecting the refrigerant leakage protection, refrigerant sensor failure and Refrigerant Leakage refrigerant sensor communication failure, Orange Indicator the Refrigerant Leakage Indicator light displays the fault type. Otherwise it will always flash. Flash when receiving the communication Communication Indicator Yellow data, otherwise it will be steady on to... -
Page 38: Maintenance And Care
Air Handlers NOTE:When the indoor unit has indoor unit refrigerant leakage protection, refrigerant sensor error or refrigerant sensor communication error, the buzzer will ring for 2s and stop for 5s, and the fan of the indoor unit will be forced to open, and the Y signal will be disconnected to stop the outdoor unit. -
Page 39: Unventilated Areas
Air Handlers 7.5 Unventilated Areas If appliances with A2L REFRIGERANTS connected via an air duct system to one or more rooms are installed in a room with an area less than Amin, that room shall be without continuously operating open flames (for example operating appliance) -
Page 40: Transportation, Marking And Storage For Units That
Air Handlers persons. The training of these procedures is carried out by national training organisations or manufacturers that are accredited to teach the relevant national competency standards that may be set in legislation. The achieved competence should be documented by a certificate. Examples for such working procedures are: breaking into the refrigerating circuit;... -
Page 41: Disposal Of Equipment Using Flammable Refrigerants
Air Handlers 10.4 Disposal of Equipment Using Flammable Refrigerants See national regulations. 10.5 Storage of Equipment/Appliances The storage of the appliance should be in accordance with the applicable regulations or instructions, whichever is more stringent. 10.6 Storage of Packed (Unsold) Equipment Storage package protection should be constructed in such a way that mechanical damage to the equipment inside the package will not cause a leak of the REFRIGERANT CHARGE. -
Page 42: Presence Of Fire Extinguisher
Air Handlers atmospheres. Ensure that the leak detection equipment being used is suitable for use with all applicable refrigerants, i.e. non-sparking, adequately sealed or intrinsically safe. 11.6 Presence of Fire Extinguisher If any hot work is to be conducted on the refrigerating equipment or any associated parts, appropriate fire extinguishing equipment shall be available to hand. -
Page 43: Checks To Electrical Devices
Air Handlers The ventilation machinery and outlets are operating adequately and are not obstructed; If an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the presence of refrigerant; Marking to the equipment continues to be visible and legible. Markings and signs that are illegible shall be corrected;... -
Page 44: Pipe Installation
Air Handlers 11.11 Pipe Installation That pipe-work including piping material, pipe routing, and installation shall include protection from physical damage in operation and service, and be in compliance with national and local codes and standards, such as ASHRAE 15, ASHRAE 15.2, IAPMO Uniform Mechanical Code, ICC International Mechanical Code, or CSA B52. -
Page 45: Removal And Evacuation
Air Handlers Electronic leak detectors may be used to detect refrigerant leaks but, in the case of FLAMMABLE REFRIGERANTS, the sensitivity may not be adequate, or may need re-calibration. (Detection equipment shall be calibrated in a refrigerant-free area.) Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant used. -
Page 46: Charging Procedures
Air Handlers – open the circuit. Compressed air or oxygen shall not be used for purging refrigerant systems. For appliances containing flammable refrigerants, refrigerants purging shall be achieved by breaking the vacuum in the system with oxygen-free nitrogen and continuing to fill until the working pressure is achieved, then venting to atmosphere, and finally pulling down to a vacuum (optional for A2L). -
Page 47: Labelling
Air Handlers in case analysis is required prior to re-use of recovered refrigerant. It is essential that electrical power is available before the task is commenced. Become familiar with the equipment and its operation) Isolate system electrically. Before attempting the procedure, ensure that: Mechanical handling equipment is available, if required, for handling refrigerant cylinders;... - Page 48 Air Handlers When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed. Ensure that the correct number of cylinders for holding the total system charge is available. All cylinders to be used are designated for the recovered refrigerant and labelled for that refrigerant (i.e.special cylinders for the recovery of refrigerant).
- Page 50 The design and specifications are subject to change without prior notice for product improvement. Consult with the sales agency or manufacturer for details. Any updates to the manual will be uploaded to the service website, please check for the latest version. Please read this owner’s manual carefully before operating the unit and keep it for future reference.
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