Carrier WeatherMaker 48TC 04, Руководство по установке

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Supply Air Temperature (SAT) Sensor — On FIOP-
equipped 48TC unit, the unit is supplied with a supply-air tem-
perature (SAT) sensor (33ZCSENSAT). This sensor is a tubu-
lar probe type, approx 6-inches (152 mm) in length. It is a nom-
inal 10-k ohm thermistor. 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), see Fig. 47. 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.
Fig. 47 — Typical Mounting Location for Supply
Air Temperature (SAT) Sensor on Small Rooftop
Units
NOTE: Refer to PremierLink Installation, Start-up, and Con-
figuration Instructions 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 air-
stream downstream of the cooling coil and any heating de-
vices. Be sure the probe tip does not come in contact with
any of the unit’s heater surfaces.
Outdoor Air Temperature (OAT) Sensor — The OAT is fac-
tory-mounted in the EconoMi$er2 (FIOP or accessory) sys-
tem. It is a nominal 10k ohm thermistor attached to an eye-
let mounting ring.
EconoMi$er2 — The PremierLink control is used with the
EconoMi$er2 (option or accessory) system for outdoor air
management. The damper position is controlled directly by the
PremierLink control; The EconoMi$er2 system 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 CO
2
sensor
• Outdoor air CO
2
sensor
Refer to Table 25 for accessory part numbers.
PREMIERLINK FIELD CONNECTIONS — Field connec-
tions 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. 45 and 46).
Some input devices also require a 24-vac signal source; con-
nect 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 connec-
tions at the PremierLink board inputs).
Table 26 provides a summary of field connections for units
equipped with Space Sensor. Table 27 provides a summary of
field connections for units equipped with Space Thermostat.
Table 25 — PremierLink™ Sensor Usage
NOTE: CO
2
Sensors (Optional):
33ZCSENCO2 — Room sensor (adjustable). Aspirator box is required for duct mounting of the sensor.
33ZCASPCO2 — Aspirator box used for duct-mounted CO
2
room sensor.
33ZCT55CO2 — Space temperature and CO
2
room sensor with override.
33ZCT56CO2 — Space temperature and CO
2
room sensor with override and setpoint.
S UPPLY AIR RETURN AIR
S UPPLY AIR
TEMPERATURE
S EN S OR
ROOF
CURB
APPLICATION
OUTDOOR AIR
TEMPERATURE SENSOR
RETURN AIR
TEMPERATURE SENSOR
OUTDOOR AIR
ENTHALPY SENSOR
RETURN AIR ENTHALPY
SENSOR
Differential Dry Bulb
Temperature with
PremierLink (PremierLink
requires 4-20 mA
Actuator)
Included —
CRTEMPSN001A00
Required — 33ZCT55SPT
or equivalent
— —
Single Enthalpy with
PremierLink (PremierLink
requires 4-20 mA
Actuator)
Included — Not Used —
Requires —
33CSENTHSW
—
Differential Enthalpy with
PremierLink (PremierLink
requires 4-20 mA
Actuator)
Included — Not Used —
Requires —
33CSENTHSW
or equivalent
Requires — 33CSENTSEN
or equivalent