Carrier 50HCQA installation instructions PremierLink Controller, Supply Air Temperature SAT Sensor

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PremierLinkt (Factory-Option)

50HCQA

C08199

Fig. 28 - PremierLink Controller

The PremierLink controller (see Fig. 28) is compatible with Carrier Comfort Networkr (CCN) devices. This control is designed to allow users the access and ability to change factory-defined settings, thus expanding the function of the standard unit control board. CCN service access tools include System Pilot (TM), Touch Pilot (TM) and Service Tool. (Standard tier display tools Navigatort and Scrolling Marquee are not suitable for use with latest PremierLink controller (Version 2.x).)

The SAT is factory-wired. The SAT probe is wire-tied to the supply-air opening (on the horizontal opening end) in its shipping position. Remove the sensor for installation. Re-position the sensor in the flange of the supply-air opening or in the supply air duct (as required by local codes). Drill or punch a 1/2-in. hole in the flange or duct. Use two field-supplied, self-drilling screws to secure the sensor probe in a horizontal orientation. See Fig. 29.

The PremierLink control is factory-mounted in the 50HCQ unit’s main control box to the left of the Central Terminal Board (CTB). Factory wiring is completed through harnesses connected to the CTB thermostat. Field connections are made at a 16-pole terminal block (TB1) located on the bottom shelf of the unit control box in front of the PremierLink controller. The factory-installed PremierLink control includes the supply-air temperature (SAT) sensor. The outdoor air temperature (OAT) sensor is included in the FIOP/accessory EconoMi$ert2 package.

The PremierLink controller requires the use of a Carrier electronic thermostat or a CCN connection for time broadcast to initiate its internal timeclock. This is necessary for broadcast of time of day functions (occupied/unoccupied).

SUPPLY AIR TEMPERATURE

SENSOR

SUPPLY AIR

ROOF CURB

RETURN AIR

C08200

NOTE: PremierLink controller is shipped in Sensor mode. To be used with a thermostat, the PremierLink controller must be configured to Thermostat mode. Refer to PremierLink Configuration instructions for Operating Mode.

Supply Air Temperature (SAT) Sensor —

On FIOP-equipped 50HCQ unit, the unit is supplied with a supply-air temperature (SAT) sensor (33ZCSENSAT). This sensor is a tubular probe type, approx 6-inches (152.4 mm) in length. It is a nominal 10-k ohm thermistor.

Fig. 29 - Typical Mounting Location for Supply Air Temperature (SAT) Sensor on Small Rooftop Units

NOTE: Refer to Form 33CS-58SI for complete PremierLink configuration, operating sequences and troubleshooting information. Have a copy of this manual available at unit start-up.

NOTE: The sensor must be mounted in the discharge airstream downstream of the cooling coil and any heating devices. Be sure the probe tip does not come in contact with any of the unit’s heater surfaces.

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Contents Installation Instructions Safety Considerations Unit Dimensional Drawing 04 06 Size Units Plan for Unit Location Unit Dimensional Drawing 04 06 Size UnitProvide Unit Support Plan for Sequence of Unit InstallationInspect unit Roof Curb Details Rig and Place Unit For Units with Accessory Electric HeatersField Fabricate Ductwork Rigging Details Positioning on Curb Convert to Horizontal and Connect Ductwork when requiredEconomizer Hood Removal and Setup Factory Option Install Outside Air HoodEconomizer Hood and Two-Position Hood Install External Condensate Trap and LineMake Electrical Connections Field Power SupplyConvenience Outlets Units with Factory-Installed DisconnectFactory-Option Thru-Base Connections Weatherproof Cover InstallationHeat Anticipator Settings Field Control WiringUnits without Thru-Base Connections ThermostatHeater Model Number Field Control Wiring RacewaySingle Point Boxes and Supplementary Fuse Typical Module InstallationPremierLink Controller Supply Air Temperature SAT SensorTypical PremierLink Wiring Schematic Space Temperature SPT Sensors Outdoor Air Temperature OAT SensorField Connections EconoMi$ert2Space Thermostat Connections PremierLink Sensor Usage Thermostat Mode Space Sensor ModeEconomizer Controls Indoor CO2 Sensor 33ZCSENCO2 Connections Supply Fan Status Switch Filter Status SwitchPower Exhaust output Space Relative Humidity SensorRecommended Cables Connecting CCN bus Color Code RecommendationsRTU-MP Control System Typical RTU-MP System Control Wiring Diagram Type of I/O Connection PIN Name Numbers Inputs RTU-MP Controller Inputs and OutputsSpace Temperature Sensor Typical Wiring 33ZCT59SPT RTU-MP / Outdoor CO2 Sensor 33ZCSENCO2 Connections Connecting Discrete InputsGeneral Communication Wiring ProtocolsRTU-MP Troubleshooting Local AccessLEDs on the RTU-MP show the status of certain functions LEDsSystem ControllerSupply Air Smoke Detector LocationsAdditional Application Data See Completing Installation of Return Air SmokeCompleting Installation of Return Air Smoke Sensor STD Unit Wire/Fuse or Hacr Breaker Sizing DataUnit No P.E 208/230 208/230---3 STD Smoke Detectors Adjust Factory-Installed OptionsEconoMi$er IV Occupancy Switch Pre-Start and Start-Up Install AccessoriesCatalog 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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