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Summary of Contents for First Co AE Air CLX
- Page 1 Installation, Operation, & Maintenance IOM 7301 Rev. B 1/25 CLX, CLXW, CLXQ, CLP, CLPW, CLPQ FAN COIL UNITS ATTENTION Read all instructions thoroughly and retain all manuals for future reference.
- Page 2 CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM COPYRIGHT The Manufacturer works to continually improve its products and as a result, it reserves the right to change design and specifications without notice. WARNING Altering the product or replacing parts with non-authorized factory parts voids all warranty or implied warranty and may result in adverse operational performance and/or a possible hazardous condition to service personnel and occupants.
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Page 3: Table Of Contents
CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM TABLE OF CONTENTS SAFETY CONSIDERATIONS SAFETY INFORMATION MODEL NOMENCLATURE INSTALLATION PRECAUTIONS GENERAL LOCATION AND CLEARANCE FAN COIL UNIT AIR DISTRIBUTION DUCTS ELECTRICAL MOUNTING COOLING COIL PIPING HOT WATER COIL PIPING PRECAUTIONS LEAK CHECK REFRIGERANT CHARGING 12-14 ELECTRICAL DATA... -
Page 4: Safety Considerations
CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM SAFETY CONSIDERATIONS 1. READ THE ENTIRE MANUAL BEFORE STARTING THE INSTALLATION. 2. Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause personal injury damage. 3. -
Page 5: Safety Information
CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM SAFETY INFORMATION WARNING WARNING Risk of fire. Flammable refrigerant used. To be repaired only by trained service personnel. These instructions are intended to aid qualified, licensed, Do not puncture refrigerant tubing. service personnel in proper installation, adjustment and Auxiliary devices which may be ignition operation of this unit. -
Page 6: Model Nomenclature
CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM MODEL NOMENCLATURE IOM7301 (Rev. B 1/25) -
Page 7: Installation Precautions
CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM INSTALLATION PRECAUTIONS configurations. This information is determined from the components and wiring of the unit and WARNING may vary from unit to unit. If hot water coil is connected to domestic potable water a •... -
Page 8: General
CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM INSTALLATION PRECAUTIONS except during brazing. Brazing must only take place on evacuated and nitrogen purged refrigerant lines and components that are open to the atmosphere. Insulation is installed in indoor equipment to provide a CL models are wall / closet air handlers with a direct barrier between outside air conditions surrounding the expansion coil for connection to a properly matched air... -
Page 9: Location And Clearance
CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM LOCATION AND CLEARANCE FAN COIL UNIT Select a location that provides sufficient space for The installer must adhere strictly to all local and national mounting and allows for ducting connections. Maintain a code requirements pertaining to the installation of this recommended clearance of 24 inches on all sides of the equipment. -
Page 10: Air Distribution Ducts
CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM AIR DISTRIBUTION DUCTS WARNING All duct work must be installed in accordance with ELECTRIC SHOCK HAZARD National Fire Protection Association Codes 90A and 90B. Ducts should be adequately insulated to prevent HACR type breakers are recommended. Other over-current condensation during the cooling cycle and to minimize protection devices that comply with all applicable codes are acceptable. -
Page 11: Cooling Coil Piping
CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM COOLING COIL PIPING REFRIGERANT CHARGING IMPORTANT Use adequate personal protection equipment when handling refrigerant including, but not limited to eye and It is illegal to discharge refrigerant into the atmosphere. Use proper reclaiming methods and equipment when installing hand protection. -
Page 12: Hot Water Coil Piping Precautions
CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM HOT WATER COIL PIPING LEAK CHECK PRECAUTIONS After pipe installation perform a leak check to ensure that no leakage of refrigerants will occur. Use nitrogen 1. Flush all field piping prior to connection to to pressure test at a minimum of 200 psig. - Page 13 CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM REFRIGERANT CHARGING WARNING WARNING • It is illegal to discharge refrigerant into the atmosphere. Explosion risk, recover refrigerant only in a Use proper reclaiming methods and equipment when cylinder designed and intended for this purpose installing or servicing this unit.
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Page 14: Refrigerant Charging Instructions
CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM REFRIGERANT CHARGING CONT. REFRIGERANT CHARGING INSTRUCTIONS Fixed Orifice Charging When charging the system in cooling mode, ensure the 1. Use the superheat value recommended in the outdoor temperature is 60°F or higher. Operate the outdoor unit instructions for A1 (R-410) and A2L system for a minimum of 15 minutes between (R-454B &... -
Page 15: Electrical Data
CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM ELECTRICAL DATA ELECTRICAL DATA Q4 Max. Model Motor Min. Circuit Voltage Rating Motor HP Pump Amps Pump HP Overcurrent Number Amps Ampacity Protection 24CLPQ4* 120V-1PH-60HZ 0.75 1/40 36CLPQ4* 120V-1PH-60HZ 0.75 1/40 12CLXQ4* 120V-1PH-60HZ 0.75 1/40 24CLXQ4*... - Page 16 CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM ELECTRICAL DATA ELECTRIC HEAT L1 - L2 Min. L1 - L2 Max. Motor Motor Model Voltage Rating Heater L1 - L2 Circuit Ampacity 208V Overcurrent Amps / 240V Protection 24CLP00* 208/230V-1PH-60HZ 24CLP03* 208/230V-1PH-60HZ 2.3 kw/208V, 3.0 kw/240V 15 / 18 15 / 20...
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Page 17: Operation Maintenance
CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM OPERATION AND MAINTENANCE 7. Check that refrigerant coil connections and piping are leak-free and properly insulated. WARNING 8. Seal any knockouts, penetrations, or exposed holes to maintain low air leakage. FIRE OR EXPLOSION HAZARD Failure to following this warning could result in personal WARNING injury, death and/or property damage. -
Page 18: Pump Replacement
CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM OPERATION & MAINTENANCE CONTINUED engage and the sensor shall be replaced by removing the PUMP REPLACEMENT sensor and replacing it with a new sensor. Disconnect electrical power before servicing the unit. False ceilings or drop ceilings may be used as a return air To replace the circulator pump, close the isolation valves plenum if a refrigerant detection system is provided in and relieve the water pressure within the heating loop. - Page 19 CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM OPERATION & MAINTENANCE CONTINUED CHECKS TO ELECTRICAL DEVICES AND SEALED All possible ignition sources, including cigarette smoking, ELECTRICAL COMPONENTS should be kept sufficiently far away from the site of Repair and maintenance to electrical components shall installation, repairing, removing and disposal, during include initial safety checks and component inspection which refrigerant can possibly be released to the...
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Page 20: Refrigerating System
CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM OPERATION & MAINTENANCE CONTINUED REMOVAL AND EVACUATION OF FLAMMABLE CHARGING PROCEDURES In addition to conventional charging procedures, the REFRIGERANTS following requirements shall be followed. When breaking into the refrigerant circuit to make • Ensure that contamination of different repairs –... - Page 21 CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM OPERATION & MAINTENANCE CONTINUED A. Pump down refrigerant system, if possible. RECOVERY When removing refrigerant from a system, either for B. If a vacuum is not possible, make a manifold so servicing order commissioning, it is recommended good that refrigerant can be removed from various parts practice that all refrigerants are removed safely.
- Page 22 CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM OPERATION & MAINTENANCE CONTINUED Status Light Table for Refrigerant Detection System (RDS) Status Light State / Condition System Response Green Blinking Normal Operation The system is actively monitoring refrigerant levels. No refrigerant detected above the activation threshold. Outdoor unit compressor and indoor blower operate normally.
- Page 23 CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM OPERATION AND MAINTENANCE CONTINUED Figure 1 IOM7301 (Rev. B 1/25)
- Page 24 CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM OPERATION AND MAINTENANCE CONTINUED Figure 2 Figure 3 IOM7301 (Rev. B 1/25)
- Page 25 CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM OPERATION AND MAINTENANCE CONTINUED Figure 4 Figure 5 IOM7301 (Rev. B 1/25)
- Page 26 CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM OPERATION AND MAINTENANCE CONTINUED Figure 6 Figure 7 IOM7301 (Rev. B 1/25)
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Page 27: Minimum Room Size And Mitigation Airflow
CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM MINIMUM ROOM SIZE AND MITIGATION AIRFLOW These fan-coils are compatible with A1 as well as A2L refrigerants. However, additional critical components are required if they are used with A2L refrigerants. If not already pre-configured for A2L refrigerants from the factory a kit that is designed for a particular refrigerant must be field installed to ensure that any leakage of refrigerant is sensed and automatically mitigated. - Page 28 CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM MINIMUM ROOM SIZE AND MITIGATION AIRFLOW CONTINUED Minimum Circulation Airflow and Room Area for a Given Charge of R454B Minimum Room Area System charge of Min Circulation 1.8 m (6 ft) 2.4 m (8 ft) 3 m (10 ft) 3.6 m (12 ft) R454B...
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Page 29: A2L Sensor Mounting
CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM A2L SENSOR REPLACEMENT 1) Remove front bottom panel to access coil 2) Disconnect A2L harness from existing installed sensor. Note: Check that cabling will not be subject 3) Remove installed A2L sensor from bracket by to wear, corrosion, excessive pressure, removing two screws as shown in Figure 8. -
Page 30: Dimensions
CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM DIMENSIONS DIMENSIONS MODEL 27-3/8" 22-3/8" 24-3/8" 15-7/8" 19-1/4" 16" 12" 2-3/8" 7-3/4" 12CLX (69.53) (56.83) (61.91) (40.32) (48.89) (40.64) (30.48) (6.03) (19.68) (49.89) 27-3/8" 22-3/8" 24-3/8" 15-7/8" 19-1/4" 16" 16" 2-3/8" 7-3/4" 24CLX (69.53) (56.83) (61.91) - Page 31 CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM DIMENSIONS CONTINUED Figure 9 Unit Dimensions IOM7301 (Rev. B 1/25)
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Page 32: Notes
CLX, CLXW, CLXQ, CLP, CLPW, CLPQ IOM NOTES IOM7301 (Rev. B 1/25) - Page 33 P.O. Box 270969 Dallas, TX 75227 www.firstco.com or www.ae-air.com The manufacturer works to continually improve its products. It reserves the right to change design and specifications without notice. ©2022 First Co., Applied Environmental Air...
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