Carrier 50HCQA installation instructions Space Sensor Mode, Thermostat Mode

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Table 4 – Space Sensor Mode

TB1 TERMINAL

 

FIELD CONNECTION

 

INPUT SIGNAL

 

 

 

 

 

 

 

 

1

 

 

T55---SEN/T56---SEN

 

Analog (10k thermistor)

 

 

 

 

 

 

 

 

2

 

 

RMTOCC

 

Discrete, 24VAC

 

 

 

 

 

 

 

 

3

 

 

T55---SEN/T56---SEN

 

Analog (10k thermistor)

 

 

 

 

 

 

 

 

4

 

 

CMPSAFE

 

Discrete, 24VAC

 

 

 

 

 

 

 

 

5

 

 

T56---SET

 

Analog (10k thermistor)

 

 

 

 

 

 

 

 

6

 

 

FSD

 

Discrete, 24VAC

 

 

 

 

 

 

 

 

7

 

 

LOOP---PWR

 

Analog, 24VDC

 

 

 

 

 

 

 

 

8

 

 

SPS

 

Discrete, 24VAC

 

 

 

 

 

 

 

 

9

 

 

IAQ ---SEN

 

Analog, 4---20mA

 

 

 

 

 

 

 

 

10

 

 

FILTER

 

Discrete, 24VAC

 

 

 

 

 

 

 

11

 

IAQ ---COM/OAQ ---COM/RH ---COM

 

Analog, 4---20mA

 

 

 

 

 

 

 

 

12

 

 

CCN + (RED)

 

Digital, , 5VDC

 

 

 

 

 

 

 

 

13

 

 

OAQ ---SEN/RH ---SEN

 

Analog, 4---20mA

 

 

 

 

 

 

 

 

14

 

 

CCN Gnd (WHT)

 

Digital, 5VDC

 

 

 

 

 

 

 

 

15

 

 

AUX OUT(Power Exhaust)

 

(Output)Discrete 24VAC

 

 

 

 

 

 

 

 

16

 

 

CCN --- (BLK)

 

Digital, 5VDC

 

 

 

 

 

 

 

LEGEND:

 

 

 

 

 

 

T55

---

Space Temperature Sensor

FSD ---

Fire Shutdown

T56

---

Space Temperature Sensor

IAQ ---

Indoor Air Quality (CO2)

CCN

---

Carrier Comfort Network (communication bus)

OAQ --- Outdoor Air Quality (CO2)

CMPSAFE

---

Compressor Safety

 

RH ---

Relative Humidity

FILTER

---

Dirty Filter Switch

 

SFS ---

Supply Fan Status

Table 5 – Thermostat Mode

50HCQA

TB1 TERMINAL

FIELD CONNECTION

 

 

1

RAT SEN

 

 

2

G

 

 

3

RAT SEN

 

 

4

Y1

 

 

5

 

 

 

6

Y2

 

 

7

LOOP---PWR

 

 

8

W1

 

 

9

IAQ ---SEN

 

 

10

W2

 

 

11

IAQ ---COM/OAQ ---COM/RH ---COM

 

 

12

CCN + (RED)

 

 

13

OAQ ---SEN/RH ---SEN

 

 

14

CCN Gnd (WHT)

 

 

15

AUX OUT (Power Exhaust)

 

 

16

CCN --- (BLK)

 

 

INPUT SIGNAL

Analog (10k thermistor)

Discrete, 24VAC

Analog (10k thermistor)

Discrete, 24VAC

Discrete, 24VAC Analog, 24VDC Discrete, 24VAC Analog, 4---20mA Discrete, 24VAC Analog, 4---20mA

Digital, 5VDC

Analog, 4---20mA

Digital, 5VDC

(Output) Discrete 24VAC

Digital, 5VDC

LEGEND:

 

 

 

CCN

---

Carrier Comfort Network (communication bus)

RH

--- Relative Humidity

G

---

Thermostat Fan

W1

--- Thermostat Heat Stage 1

IAQ

---

Indoor Air Quality (CO2)

W2

--- Thermostat Heat Stage 2

OAQ

---

Outdoor Air Quality (CO2)

Y1

--- Thermostat Cool Stage 1

RAT

---

Return Air Temperature

Y2

--- Thermostat Cool Stage 2

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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 UnitPlan for Sequence of Unit Installation Inspect unitProvide Unit Support Roof Curb Details For Units with Accessory Electric Heaters Field Fabricate DuctworkRig and Place Unit 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$ert2Space Thermostat Connections PremierLink Sensor Usage Thermostat Mode Space Sensor ModeEconomizer Controls Indoor CO2 Sensor 33ZCSENCO2 Connections Supply Fan Status Switch Filter Status SwitchPower Exhaust output Space Relative Humidity SensorRecommended Cables Connecting CCN bus Color Code RecommendationsRTU-MP Control System Typical RTU-MP System Control Wiring Diagram Type of I/O Connection PIN Name Numbers Inputs RTU-MP Controller Inputs and OutputsSpace Temperature Sensor Typical Wiring 33ZCT59SPT RTU-MP / Outdoor CO2 Sensor 33ZCSENCO2 Connections Connecting Discrete InputsGeneral Communication Wiring ProtocolsRTU-MP Troubleshooting Local AccessLEDs on the RTU-MP show the status of certain functions LEDsSystem ControllerSupply Air Smoke Detector LocationsSee Completing Installation of Return Air Smoke Completing Installation of Return Air Smoke SensorAdditional Application Data STD Unit Wire/Fuse or Hacr Breaker Sizing DataUnit No P.E 208/230 208/230---3 STD Adjust Factory-Installed Options EconoMi$er IV Occupancy SwitchSmoke Detectors 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.