Carrier 50TC installation instructions PremierLink Sensor Usage, 33ZCT55SPT CRTEMPSN001A00

50TC

Outdoor Air Temperature (OAT) Sensor — The OAT is factory-mounted in the EconoMi$er2 (FIOP or accessory). It is a nominal 10k ohm thermistor attached to an eyelet mounting ring.

EconoMi$er2 — The PremierLink control is used with EconoMi$er2 (option or accessory) for outdoor air management. The damper position is controlled directly by the PremierLink control; EconoMi$er2 has no internal logic device.

Outdoor air management functions can be enhanced with field-installation of these accessory control devices:

Enthalpy control (outdoor air or differential sensors) Space CO2 sensor

Outdoor air CO2 sensor

Refer to Table 4 for accessory part numbers.

Field connections — Field connections for accessory sensor and input devices are made at the 16-pole terminal

block (TB1) located on the control box bottom shelf in front of the PremierLink control (See Fig. 29). Some input devices also require a 24-vac signal source; connect at CTB terminal R at “THERMOSTAT” connection strip for this signal source. See connections figures on following pages for field connection locations (and for continued connections at the PremierLink board inputs).

Table 5 provides a summary of field connections for units equipped with Space Sensor. Table 6 provides a summary of field connections for units equipped with Space Thermostat.

Space Sensors - The PremierLink controller is factory-shipped configured for Space Sensor Mode. A Carrier T-55 or T-56 space sensor must be used. T-55 space temperature sensor provides a signal of space temperature to the PremierLink control. T-56 provides same space temperature signal plus it allows for adjustment of space temperature setpoints from the face of the sensor by the occupants.

Table 4 – PremierLink Sensor Usage

APPLICATION			OUTDOOR AIR	RETURN AIR	OUTDOOR AIR	RETURN AIR
			TEMPERATURE	TEMPERATURE
					ENTHALPY SENSOR	ENTHALPY SENSOR
			SENSOR	SENSOR
Differential Dry Bulb				Required ---
Temperature with			Included ---
PremierLink				33ZCT55SPT	---	---
			CRTEMPSN001A00
(PremierLink requires				or equivalent
4---20 mA Actuator)
Single Enthalpy with			Included ---		Requires ---
PremierLink				---		---
					HH57AC077
(PremierLink requires			Not Used
					or equivalent
4---20mA Actuator)
Differential Enthalpy			Included ---		Requires ---	Requires ---
with PremierLink				---
					HH57AC077	HH57AC078
(PremierLink requires			Not Used
					or equivalent	or equivalent
4---20mA Actuator)
NOTES:
CO2 Sensors (Optional):
33ZCSENCO2	---	Room sensor (adjustable). Aspirator box is required for duct mounting of the sensor.
33ZCASPCO2	---	Aspirator box used for duct--- mounted CO2 room sensor.
33ZCT55CO2	---	Space temperature and CO2 room sensor with override.
33ZCT56CO2	---	Space temperature and CO2 room sensor with override and setpoint.

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