Carrier 50HCQA installation instructions Convert to Horizontal and Connect Ductwork when required

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50HCQA

C06005

 

MAX WEIGHT

 

 

DIMENSIONS

 

 

 

 

 

 

 

 

 

UNIT

 

A

 

B

 

C

 

 

 

 

 

 

LB

KG

IN

MM

IN

MM

IN

MM

 

 

 

 

 

 

 

 

 

50HCQA04

725

330

74.5

1890

38.5

980

33.5

850

 

 

 

 

 

 

 

 

 

50HCQA05

845

384

74.5

1890

37.5

955

41.5

1055

 

 

 

 

 

 

 

 

 

50HCQA06

900

409

74.5

1890

37.5

955

41.5

1055

 

 

 

 

 

 

 

 

 

NOTES:

1.Dimensions in ( ) are in millimeters.

2.Hook rigging shackles through holes in base rail, as shown in detail “A.” Holes in base rails are centered around the unit center of gravity. Use wooden top to prevent rigging straps from damaging unit.

Fig. 5 - Rigging Details

Positioning on Curb —

Position unit on roof curb so that the following clearances are maintained: 1/4 in. (6.4 mm) clearance between the roof curb and the base rail inside the front and rear, 0.0 in. clearance between the roof curb and the base rail inside on the duct end of the unit. This will result in the distance between the roof curb and the base rail inside on the condenser end of the unit being approximately equal to Fig. 3, section C-C.

Although unit is weatherproof, guard against water from higher level runoff and overhangs.

After unit is in position, remove the compressor access panel. Holding the blocking between compressors with one hand, cut the strapping. Carefully remove the blocking without damaging tubing, wiring, or controls. Remove the strapping and replace the access panel.

Remove all shipping materials and top skid. Recycle or dispose of all shipping materials.

Step 7 — Convert to Horizontal and Connect Ductwork (when required)

Unit is shipped in the vertical duct configuration. Unit without factory-installed economizer or return air smoke detector option may be field-converted to horizontal ducted configuration. To convert to horizontal configuration, remove screws from side duct opening covers and remove covers. Using the same screws, install covers on vertical duct openings with the insulation-side down. Seals around duct openings must be tight. See Fig. 6.

C06108

Fig. 6 - Horizontal Conversion Panels

Field-supplied flanges should be attached to horizontal duct openings and all ductwork should be secured to the flanges. Insulate and weatherproof all external ductwork, joints, and roof or building openings with counter flashing and mastic in accordance with applicable codes.

Do not cover or obscure visibility to the unit’s informative data plate when insulating horizontal ductwork.

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Contents Installation Instructions Safety Considerations Unit Dimensional Drawing 04 06 Size Units Unit Dimensional Drawing 04 06 Size Unit Plan for Unit LocationProvide Unit Support Plan for Sequence of Unit InstallationInspect unit Roof Curb Details Rig and Place Unit For Units with Accessory Electric HeatersField Fabricate Ductwork Convert to Horizontal and Connect Ductwork when required Rigging Details Positioning on CurbInstall Outside Air Hood Economizer Hood Removal and Setup Factory OptionInstall External Condensate Trap and Line Economizer Hood and Two-Position HoodField Power Supply Make Electrical ConnectionsUnits with Factory-Installed Disconnect Convenience OutletsWeatherproof Cover Installation Factory-Option Thru-Base ConnectionsField Control Wiring Heat Anticipator SettingsUnits without Thru-Base Connections ThermostatField Control Wiring Raceway Heater Model NumberTypical Module Installation Single Point Boxes and Supplementary FuseSupply Air Temperature SAT Sensor PremierLink ControllerTypical PremierLink Wiring Schematic Outdoor Air Temperature OAT Sensor Space Temperature SPT SensorsField Connections EconoMi$ert2Space Thermostat Connections PremierLink Sensor Usage Space Sensor Mode Thermostat ModeEconomizer Controls Indoor CO2 Sensor 33ZCSENCO2 Connections Filter Status Switch Supply Fan Status SwitchPower Exhaust output Space Relative Humidity SensorConnecting CCN bus Color Code Recommendations Recommended CablesRTU-MP Control System Typical RTU-MP System Control Wiring Diagram RTU-MP Controller Inputs and Outputs Type of I/O Connection PIN Name Numbers InputsSpace Temperature Sensor Typical Wiring 33ZCT59SPT Connecting Discrete Inputs RTU-MP / Outdoor CO2 Sensor 33ZCSENCO2 ConnectionsCommunication Wiring Protocols GeneralLocal Access RTU-MP TroubleshootingLEDs LEDs on the RTU-MP show the status of certain functionsSystem ControllerSmoke Detector Locations Supply AirAdditional Application Data See Completing Installation of Return Air SmokeCompleting Installation of Return Air Smoke Sensor Unit Wire/Fuse or Hacr Breaker Sizing Data STDUnit No P.E 208/230 208/230---3 STD Smoke Detectors Adjust Factory-Installed OptionsEconoMi$er IV Occupancy Switch Install Accessories Pre-Start and Start-UpCatalog No 50HCQ---01SI

50HCQA specifications

The Carrier 50HCQA is a cutting-edge rooftop air conditioning unit designed for commercial applications, combining efficiency, reliability, and advanced technology to ensure optimal indoor climate control. This model stands out in Carrier's extensive range of HVAC solutions, showcasing a blend of innovative features suitable for diverse building types.

One of the key features of the Carrier 50HCQA is its high-efficiency compressor. With variable-speed capabilities, the compressor adjusts its output to meet the precise cooling or heating demands of the space, promoting energy savings and consistent temperature management. This flexibility results in reduced energy consumption, making the 50HCQA an environmentally friendly choice for businesses looking to lower their carbon footprint.

The 50HCQA integrates advanced microprocessor controls, streamlining operation and enhancing user interaction. This technology allows for sophisticated diagnostics, monitoring, and scheduling, giving facility managers the tools they need to optimize system performance. The user-friendly interface ensures that settings can be easily adjusted, and real-time performance metrics can be accessed to ensure efficient operation.

In terms of construction, the Carrier 50HCQA is built with durability in mind. The unit features a robust cabinet design with a galvanized steel construction that is resistant to corrosion. This feature enhances the longevity of the unit, making it suitable for a variety of weather conditions. Additionally, the insulated casing reduces sound levels, providing a quieter operation that is particularly beneficial in noise-sensitive environments.

Another significant characteristic of the 50HCQA is its environmentally responsible refrigerant options. It utilizes R-410A refrigerant, which has a lower Global Warming Potential (GWP) compared to traditional refrigerants. This aspect not only meets regulatory standards but also supports users in making eco-friendly choices in their HVAC systems.

The 50HCQA also supports a range of optional accessories, including economizers for enhanced energy efficiency and improved air quality. This allows for increased outdoor air intake during suitable conditions, which can significantly contribute to enhancing indoor air quality—an essential factor for occupant comfort and health.

In conclusion, the Carrier 50HCQA is an exemplary model in the commercial HVAC sector, delivering powerful performance, advanced control technologies, and robust construction. Its energy-efficient design, user-friendly controls, and eco-conscious refrigerant options make it a top choice for businesses aiming to invest in sustainable and reliable climate control solutions.
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