Carrier 50TC Plan for Sequence of Unit Installation, Inspect unit, Provide Unit Support

Page 7

Table 1 – Operating Weights

50TC---

 

UNITS KG (LB)

 

 

 

 

 

 

Component

A07

D08

D09

D12

 

 

 

 

 

Base Unit

275 (607)

340.5 (750)

388.2 (855)

392.7 (865)

 

 

 

 

 

Economizer

 

 

 

 

Vertical

36 (80)

36 (80)

36 (80)

36 (80)

Horizontal

48 (105)

48 (105)

48 (105)

48 (105)

 

 

 

 

 

Curb

 

 

 

 

356 mm/14--- in

60 (133)

60 (133)

65 (143)

60 (133)

610 mm/24--- in

79 (174)

79 (174)

69 (153)

79 (174)

 

 

 

 

 

Step 2 — Plan for Sequence of Unit Installation

The support method used for this unit will dictate different sequences for the steps of unit installation. For example, on curb-mounted units, some accessories must be installed on the unit before the unit is placed on the curb. Review the following for recommended sequences for installation steps.

Curb-mounted installation —

Install curb

Install field-fabricated ductwork inside curb

Install accessory thru-base service connection package (affects curb and unit) (refer to accessory installation instructions for details)

Prepare bottom condensate drain connection to suit planned condensate line routing (refer to Step 9 for details)

Rig and place unit Install outdoor air hood

Install condensate line trap and piping Make electrical connections

Install other accessories

Pad-mounted installation —

Prepare pad and unit supports

Check and tighten the bottom condensate drain connection plug

Rig and place unit

Convert unit to side duct connection arrangement Install field-fabricated ductwork at unit duct openings Install outdoor air hood

Install condensate line trap and piping Make electrical connections

Install other accessories

Frame-mounted installation —

Frame-mounted applications generally follow the sequence for a curb installation. Adapt as required to suit specific installation plan.

Step 3 — Inspect unit

Inspect unit for transportation damage. File any claim with transportation agency.

Confirm before installation of unit that voltage, amperage and circuit protection requirements listed on unit data plate agree with power supply provided.

Step 4 — Provide Unit Support

Roof Curb Mount —

Accessory roof curb details and dimensions are shown in Fig. 4 (size 07 units) and Fig. 5 (size 08 – 12 units). Assemble and install accessory roof curb in accordance with instructions shipped with the curb.

NOTE: The gasketing of the unit to the roof curb is critical for a watertight seal. Install gasket supplied with the roof curb as shown in Fig. 4 and Fig. 5. Improperly applied gasket can also result in air leaks and poor unit performance.

Curb should be level. This is necessary for unit drain to function properly. Unit leveling tolerances are show in Fig. 6. Refer to Accessory Roof Curb Installation Instructions for additional information as required.

Install insulation, cant strips, roofing felt, and counter flashing as shown. Ductwork must be attached to curb and not to the unit. The accessory thru-the-base power package must be installed before the unit is set on the roof curb.

If electric and control wiring is to be routed through the basepan, attach the accessory thru-the-base service connections to the basepan in accordance with the accessory installation instructions.

Slab Mount (Horizontal Units Only) —

Provide a level concrete slab that extends a minimum of 150 mm (6 in.) beyond unit cabinet. Install a gravel apron in front of condenser coil air inlet to prevent grass and foliage from obstructing airflow.

NOTE: Horizontal units may be installed on a roof curb if required.

Alternate Unit Support (In Lieu of Curb or Slab Mount) —

A non-combustible sleeper rail can be used in the unit curb support area. If sleeper rails cannot be used, support the long sides of the unit with a minimum of 3 equally spaced 102 mm x 102 mm (4-in. x 4-in.) pads on each side.

50TC

7

Page 6 Page 8
Image 7
Page 6 Page 8
Contents Installation Instructions 50TC Unit Dimensional Drawing 07 Size Units Unit Dimensional Drawing 07 Size Unit Unit Dimensional Drawing 08, 09 and 12 Size Units Roof mount Plan for Unit LocationInspect unit Plan for Sequence of Unit InstallationProvide Unit Support Roof Curb Details 07 Size Units Roof Curb Details 08 12 Size Units Unit Leveling Tolerances Field Fabricate DuctworkRig and Place Unit Convert to Horizontal and Connect Ductwork when requiredInstall Outside Air Hood Economizer Hood Removal and Setup Factory OptionFactory Option Two Position Damper Hood Removal and SetupEconomizer Hood and Two-Position Hood Make Electrical Connections Install External Condensate Trap and LineAll units Units with Factory-Installed DisconnectThru-Base Connections Thermostat Field Control WiringHeat Anticipator Settings Units without Thru-Base ConnectionsHeater Model Number Electric HeatersAccessory Electric Heater Control Connections PremierLink Controller PremierLinkt Factory-OptionPremierLink Wiring Schematic 33ZCT55SPT CRTEMPSN001A00 PremierLink Sensor UsageThermostat Mode Space Sensor Mode55 Space Temperature Sensor Wiring Economizer controls Enthalpy Switch HH57AC077 ConnectionsIndoor CO2 Sensor 33ZCSENCO2 Connections PremierLink Wiring Fan Pressure Switch Connection PremierLink Filter Switch ConnectionPremierLink CCN Bus Connections Color Code RecommendationsRTU-MP Multi-Protocol Control Board RTU-MP control systemRTU-MP System Control Wiring Diagram Type of I/O Connection PIN Name Numbers Inputs RTU-MP Controller Inputs and OutputsRTU-MP T-55 Sensor Connections Space Temperature SPT SensorsRTU-MP / Indoor CO2 Sensor 33ZCSENCO2 Connections Connecting Discrete Inputs Filter StatusFan Status Communication Wiring Protocols GeneralRemote Occupancy RTU-MP Troubleshooting Communication LEDs Local AccessLEDs on the RTU-MP show the status of certain functions LEDsPre-Start and Start-Up Adjust Factory-Installed OptionsInstall Accessories EconoMi$er IV Occupancy SwitchSTD Unit Wire/MOCP Sizing Data17.5 108 Disc 50TC Catalog No 50TC---C02SI

50TC specifications

The Carrier 50TC is a cutting-edge commercial rooftop unit designed for optimal performance and reliability in a variety of HVAC applications. This unit is particularly well-suited for small to medium-sized facilities that require efficient heating, ventilation, and air conditioning solutions. A hallmark of the Carrier 50TC is its impressive energy efficiency, enabling users to significantly lower their operational costs while maintaining a comfortable indoor environment.

One of the standout features of the Carrier 50TC is its advanced performance technologies. The unit employs a high-efficiency scroll compressor that enhances refrigerant management, allowing for exceptional cooling capacities while minimizing energy consumption. Additionally, the unit is equipped with variable speed fans, which further contribute to its operational efficiency. These fans adjust their speed according to the cooling demands, allowing the system to consume energy only when necessary.

The Carrier 50TC also incorporates an innovative control system that provides intelligent diagnostics and an array of customizable settings. This system helps in monitoring the unit's performance, ensuring maximum efficiency and early detection of potential maintenance issues. Users can easily integrate the unit within their existing building management systems, enhancing overall operational control and streamlining HVAC management procedures.

Durability and ease of maintenance are key characteristics of the Carrier 50TC, designed specifically to withstand harsh weather conditions while providing long-lasting performance. The unit's robust construction includes a powder-coated cabinet, which not only improves its aesthetic appeal but also protects against corrosion, ensuring longevity.

Moreover, the Carrier 50TC is designed with eco-friendliness in mind. It utilizes environmentally friendly refrigerants, aligning with modern regulations aimed at reducing the impact of HVAC systems on the environment. By choosing the Carrier 50TC, businesses can contribute to sustainability efforts while enjoying effective temperature control.

In summary, the Carrier 50TC combines energy efficiency, advanced technologies, and robust design to deliver a reliable HVAC solution for commercial applications. With its smart control system, high-efficiency components, and eco-friendly operation, the Carrier 50TC sets a standard for performance and sustainability in the commercial heating and cooling market.
Top Page Image Contents