Carrier 50TFQ008-012 specifications Outdoor-AirHood Details, Optional Manual Outdoor-Air

Fig. 12 — Outdoor-Air Hood Details

SCREW HOLES (TOP)

HOOD

HOOD SCREEN LOCATION (SCREEN NOT SHOWN)

Fig. 13 — Optional Manual Outdoor-Air

Damper with Hood Attached

Fig. 14 — Outdoor Air Damper Position Setting

PREMIERLINK™ CONTROL — The PremierLink control- ler is compatible with Carrier Comfort Network® (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. Carrier’s diag- nostic standard tier display tools such as Navigator™ module or Scrolling Marquee can be used with the PremierLink controller.

The PremierLink controller (see Fig. 15A and 15B) requires 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). Re- fer to Fig. 16. The PremierLink control may be mounted in the control panel or an area below the control panel.

NOTE: PremierLink versions 1.3 and later are shipped in Sen- sor mode. If used with a thermostat, the PremierLink control must be configured to Thermostat mode.

The PremierLink control includes a supply-air temperature sensor (SAT) and an outdoor-air temperature sensor (OAT) as standard. An indoor-air quality (CO2) sensor can be added as an option. Refer to Table 5 for sensor usage.

Install the Supply Air Temperature (SAT) Sensor — When the unit is supplied with a factory-mounted PremierLink con- trol, the supply-air temperature (SAT) sensor (33ZCSENSAT) is factory-supplied and wired. The wiring is routed from the PremierLink control over the control box, through a grommet, into the fan section, down along the back side of the fan, and along the fan deck over to the supply-air opening.

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 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.

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

Outdoor Air Temperature (OAT) Sensor — When the unit is supplied with a factory-mounted PremierLink control, the outdoor-air temperature (OAT) sensor is factory-supplied and wired.

Install the Indoor Air Quality (CO2) Sensor — Mount the optional indoor air quality (CO2) sensor according to manufac- turer specifications.

A separate field-supplied transformer must be used to pow- er the CO2 sensor.

Wire the CO2 sensor to the COM and IAQI terminals of J5 on the PremierLink controller. Refer to the PremierLink Instal- lation, Start-up, and Configuration Instructions for detailed wiring and configuration information.

14