Related Manuals for United CoolAir Alpha Aire II
Summary of Contents for United CoolAir Alpha Aire II
- Page 1 Alpha Aire II Dedicated Outdoor Air System, Air-Source Heat Pump with Energy Recovery Installation, Operation and Maintenance Manual Effective March 2024 Horizontal Air-Cooled...
- Page 2 Installation, Operation and Maintenance Manual Alpha Aire II Subject to change without notice.
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Page 3: Table Of Contents
Installation, Operation and Maintenance Manual Alpha Aire II Contents Contents � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 3 Pressure Switches 15 Electrical Diagram �... -
Page 4: Electrical Diagram
Installation, Operation and Maintenance Manual Alpha Aire II Electrical Diagram To retrieve the unit electrical diagram, scan the electrical diagram QR Code label affixed near the unit data tag This will link to the wwwunitedcoolaircom website Scroll down to the Search By Serial Number box and enter the unit serial... -
Page 5: Safety Introduction And Labeling Guide
Maintenance Manual, are available at wwwunitedcoolair com For detailed information regarding specifications, dimensional drawings, and weight information, contact your ELECTRICAL HAZARD local United CoolAir manufacturer’s representative The electrical hazard icon indicates the presence of an electrical hazard which WARNING could result in electrical shock or death... -
Page 6: General Information
Equipment Description If a crane, cables or slings are used to move a unit, spreader The Alpha Aire II is a single package air source heat bars must be used to protect each section’s cabinet pump designed for 100% Outdoor Air applications with... -
Page 7: Floor Mounting
Installation, Operation and Maintenance Manual Alpha Aire II Alph 4� Using a support lift, carefully lift the unit to the location of installation positioning the pre-hung rods through the hanging rod holes in the base rails Be certain to SERVICE CLEARANCE... -
Page 8: General Guidelines
Installation, Operation and Maintenance Manual Alpha Aire II General Guidelines Outdoor Air Quality Bird screening should be provided that satisfies any Outdoor air quality must be investigated and documented applicable codes Survey the building site and its immediate surroundings for any possible sources of contamination This should be... -
Page 9: General Ductwork Recommendations
Installation, Operation and Maintenance Manual Alpha Aire II The duct design must be based on accepted industry prevent blockage from debris If snow accumulations are practices These can be found in SMACNA’s HVAC Duct expected to be greater than 12”, raise the bottom of the Construction Standards—Metal, Flexible and Fibrous... -
Page 10: Physical Data
Installation, Operation and Maintenance Manual Alpha Aire II Physical Data Physical Data Application Data Nominal CFM 208/230 187/253 900 - 2,500 Voltage Variation 414-520 Type Supply Blower Airflow – Outdoor Air and 900–2500 Return Air Type Exhaust Blower DB °F 10–105... -
Page 11: Dimensional Drawing
Installation, Operation and Maintenance Manual Alpha Aire II Dimensional Drawing Subject to change without notice. -
Page 12: Isometric View
491 East Princess Street • York, Pennsylvania 17403 • Phone: (717) 843-4311 • Fax: (717) 854-4462 • www.unitedcoolair.com Installation, Operation and Maintenance Manual Alpha Aire II Alpha Aire II - Isometric Views Isometric Views CONDENSER, EVAPORATOR, EXHAUST FAN FILTER DRIER &... -
Page 13: Installation
Suggested Assembly Sequence All units are shipped from the factory with a full factory 1� The Alpha Aire II unit ships split in two sections on refrigerant charge The resealable refrigerant fittings separate skids to be field assembled as a packaged... -
Page 14: Condensate Drain Connection
A fitting that is not fully open will restrict refrigerant flow Condensate Drain Connections Alpha Aire II evaporator and condenser sections both have Figure 5 - Condensate Trap Dimensions a 3/4" NPT condensate drain connection on the bottom of... -
Page 15: Transformer
Installation, Operation and Maintenance Manual Alpha Aire II Wiring INFORMATION 1� Reference the unit electrical diagram To retrieve the Use Copper Conductors Only Failure electrical diagram from the UCA web site, scan the QR to use copper conductors may result in... -
Page 16: Sequence Of Operation
Installation, Operation and Maintenance Manual Alpha Aire II Sequence of Operation System Start/Stop Reheat Mode During dehumidification mode, if the supply air The system is on when all enable points are set to the on temperature falls below the reheat set point, the hot... -
Page 17: Factory Installed Sensors
Installation, Operation and Maintenance Manual Alpha Aire II 491 East Princess Street • York, Pennsylvania 17403 • Phone: (717) 843-4311 • Fax: (717) 854-4462 • www.unitedcoolair.com Alpha Aire II - Component Details Controls Guide Factory Installed Sensors OUTSIDE NTC 1... -
Page 18: Alarms
Installation, Operation and Maintenance Manual Alpha Aire II Controls Quick Start To reset active alarms, press the Alarm key and use the down arrow key to get to the alarm reset 1� Turn the system on: screen Press and hold Alarm for 3 seconds to... -
Page 19: Bacnet Setup
Installation, Operation and Maintenance Manual Alpha Aire II Control Temperature Sensor Failure The alarm is active when there is a problem with the control temperature sensor This is a bulb style NTC sensor located in the supply air stream leaving the enthalpy... -
Page 20: Bacnet Points List
Installation, Operation and Maintenance Manual Alpha Aire II BACnet Points List Analog Values Index Variable/BACnet Name Description Access Minimum Maximum Units -9999 999.9 Degrees Fahrenheit OutdoorTemperature Outdoor Temperature OutdoorHumidity Outdoor Humidity -9999 999.9 Percent Relative Humidity EvaporatorTemperature Evaporator Air Temperature -9999 999.9... - Page 21 Installation, Operation and Maintenance Manual Alpha Aire II FireSmoke_Alarm Alarm - Fire/Smoke Detected Normal Alarm DrainPan_Alarm Alarm - Drain Pan Normal Alarm DirtyFilter_Alarm Alarm - Dirty Air Filter(s) Normal Alarm OA_Damper_Alarm Alarm - Outdoor Damper Failed to Open Normal Alarm...
- Page 22 Installation, Operation and Maintenance Manual Alpha Aire II Integer Values Index Variable/BACnet Name Description Access Minimum Maximum Units SupplyAirflowSetpoint Supply Airflow Setpoint 2500 2500 ExhaustAirflowSetpoint Exhaust Airflow Setpoint SupplyAirflow Current Supply Airflow 9999 ExhaustAirflow Current Exhaust Airflow 9999 UnitStartDelay Unit Start Delay...
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Page 23: System Options
Installation, Operation and Maintenance Manual Alpha Aire II System Options PAINTED CABINET (Exterior Only) A Polyurethane Enamel electrostatically sprayed on heavy duty G60 steel components It is a two component coating To Drain Maximum providing high gloss, excellent exterior durability with... -
Page 24: Refrigerant Circuit Components
Installation, Operation and Maintenance Manual Alpha Aire II Refrigerant Circuit Components SIGHT GLASS LIQUID SUBCOOLING COIL A liquid sight glass is located in the liquid line between Liquid Subcooling coil is used for additional reheat in the the outlet of the liquid receiver and the inlet of the... -
Page 25: Maintenance
Installation, Operation and Maintenance Manual Alpha Aire II Maintenance Procedures BLOWER MOTORS ELECTRICAL HAZARD All EC (Electronically Commutated) Motors have a built- Turn OFF power and lockout service in integrated frequency inverter The combination of a before conducting any maintenance Keep... -
Page 26: Finned Coil Cleaning
Installation, Operation and Maintenance Manual Alpha Aire II FINNED COIL CLEANING Before cleaning any finned coils, remove the filters Remove any large debris or visible dirt accumulation WARNING Make sure to follow all safety precautions when cleaning any coil with a commercially... -
Page 27: About Airxchange Energy Recovery Wheels
Installation, Operation and Maintenance Manual Alpha Aire II Energy Recovery Wheels Subject to change without notice. - Page 28 Installation, Operation and Maintenance Manual Alpha Aire II Subject to change without notice.
- Page 29 Installation, Operation and Maintenance Manual Alpha Aire II Subject to change without notice.
- Page 30 Installation, Operation and Maintenance Manual Alpha Aire II Subject to change without notice.
- Page 31 Installation, Operation and Maintenance Manual Alpha Aire II Subject to change without notice.
- Page 32 Installation, Operation and Maintenance Manual Alpha Aire II Subject to change without notice.
- Page 33 Installation, Operation and Maintenance Manual Alpha Aire II Subject to change without notice.
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Page 34: Troubleshooting Guide
Installation, Operation and Maintenance Manual Alpha Aire II Troubleshooting Guide ELECTRICAL Turn OFF power to unit before conducting any troubleshooting, unless the tests HAZARD you are performing require system operation Keep hands, clothing and tools clear of electrical terminals Make sure to keep hands and clothing clear of any moving belts, blowers and... - Page 35 Installation, Operation and Maintenance Manual Alpha Aire II PROBLEM POSSIBLE CAUSE POSSIBLE SOLUTION Evaporator 1� Lack of air flow 1� Check filters and coil for any blockages coil ices 2� Low inlet air temperature 2� Replace filters if dirty 3� Loss of refrigerant charge 3�...
- Page 36 Installation, Operation and Maintenance Manual Alpha Aire II PROBLEM POSSIBLE CAUSE POSSIBLE SOLUTION 1� Controller not set properly 1� Turn on and set controller for desired operation 2� Control wiring issue 2� Check wiring connections against schematic Check dehumidification 3� Controls in an alarm condition all connections for tightness Check wire continuity 4�...
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Page 37: Limited Warranty
Alpha Aire II Limited Warranty The following is the Limited Warranty provided by United CoolAir (a trade name of United CoolAir LLC, herein “Seller”) to any customer (herein “Buyer”) for any goods and services (a “deliverable”): 1 Limited Warranty Seller provides such warranty as set forth in any instruction manual provided with the deliverable, or if there is no such warranty or instruction manual, Seller warrants to Buyer that such deliverable will be free from defects in material and workmanship (in either case the "Limited Warranty") Except as expressly set forth in this section or specifically... - Page 38 Installation, Operation and Maintenance Manual Alpha Aire II Limited Warranty Wear items or consumables such as belts, filters, coolant, refrigerant, etc are not included under the Limited Warranty The Limited Warranty does not cover the equipment and materials not manufactured by Seller; the warranty for those items shall...
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Page 39: Startup Procedures
Installation, Operation and Maintenance Manual Alpha Aire II Start-Up Procedures transit and / or handling ELECTRICAL HAZARD 7� Confirm that both condensate outlets have been Make certain that all power is disconnected adequately trapped and taken to a suitable point for... - Page 40 Installation, Operation and Maintenance Manual Alpha Aire II START-UP PROCEDURES (R-410A Systems) Continued: R-410A refrigerant, look up and record the saturation temperature corresponding to the liquid line pressure 22� Calculate and record the liquid sub-cooling by taking the difference between the liquid line temperature and...
- Page 41 Installation, Operation and Maintenance Manual Alpha Aire II START-UP PROCEDURES Complete the form by listing your Job Name: _________________________________ Date:____________ name, company name, phone and Address: ____________________________________________________ City: ___________________________ State: ________ZIP ____________ fax number Sign and date the form and provide a copy as required to all...
- Page 42 Installation, Operation and Maintenance Manual Alpha Aire II Outside Air External Static Pressure (ESP): ____________ In WG Exhaust Air External Static Pressure (ESP): ____________ In WG Compressor Suction Pressure: psi _______ Suction Line Temperature: °F ________ Saturation Temperature: °F ________ Suction Superheat: °...
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Page 43: Product Nomenclature
Installation, Operation and Maintenance Manual Alpha Aire II Product Nomenclature – EXAMPLE: “AA” Alpha Aire II “H” Horizontal Configuration “200” II Series “G” Common to All "3" Voltage 3 = 208/230-3-60 4 = 460-3-60 “AS” Single Circuit Refrigerant “T” Traditional Cabinet “A”... -
Page 44: Typical Electrical Diagrams
Installation, Operation and Maintenance Manual Alpha Aire II Typical Electrical Diagram Subject to change without notice. - Page 45 Installation, Operation and Maintenance Manual Alpha Aire II Typical Electrical Diagram 3L2 5L3 13 NO 21 NC 14 NO 22 NC 2T1 4T2 6T3 Subject to change without notice.
- Page 46 Installation, Operation and Maintenance Manual Alpha Aire II Typical Electrical Diagram Subject to change without notice.
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Page 47: Maintenance Log
This log must be printed by installer and kept with the unit It is the responsibility of the owner and/or maintenance/service contractor to document any service, repair or adjustments United CoolAir Service and Warranty Departments are available to advise and provide phone help for proper operation and replacement parts The responsibility for proper startup,... - Page 48 Installation, Operation and Maintenance Manual Alpha Aire II NOTES: ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ Subject to change without notice.
- Page 49 Installation, Operation and Maintenance Manual Alpha Aire II NOTES: ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ Subject to change without notice.
- Page 50 LIMITED WARRANTY Authorized Distributor: United CoolAir Units are backed by a 1 year limited warranty on parts and a 5 year limited warranty on the compressor (labor not included) Maintenance items such as filters and belts are excluded under this...
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