![background image](http://html.mh-extra.com/html/carrier/48lcb07/48lcb07_controls-start-up-operation-and-troubleshooting_2561052007.webp)
7
Sensors and Accessories
The VAV-RTU Open controller and i-Vu Open VAV zone control
-
lers are configurable with the following field-supplied sensors.
Some may be wired directly to the VAV-RTU Open controller and
are noted:
NOTE: Supply air temperature sensor (33ZCSENSAT) and return
air temperature sensor (CRCBDIOX005A00) are factory-
installed.
• Indoor air quality sensor. Wired directly to VAV-RTU
Open or VAV zone controllers: (ZS-C-CAR, ZS-HC-CAR,
33ZCSPTCO2-01, 33ZCSPTCO2LCD-01,
33ZCT55CO2-02, or 33ZCT56CO2-02) required for
demand control ventilation.
• Outdoor air quality sensor (33ZCSPTCO2-01, 33ZCSPT
-
CO2LCD-01)
• CO
2
aspirator box (C33ZCCASPCO2) required for CO
2
return duct/outside air applications with 33ZCSPTCO2-01
and 33ZCSPTCO2LCD-01 sensors
• Outdoor air enthalpy switch (33CSENTHSW)
• Return air enthalpy sensor (33CSENTSEN) required for
differential enthalpy control
• Space relative humidity sensor (33ZCSENSRH-02) refer
to VAV zoning controller.
• Duct relative humidity (33ZCSENDRH-02)
• Smoke Detectors (CRSMKSEN002A00,
CRSMKKIT002A00)
• Fan and/or Filter Status (CRSTATUS001A00,
CRSTATUS005A00)
User Interfaces
• Field Assistant (USB-TKIT required)
• Wall mounted Equipment Touch
• Wall mounted System Touch
Install Analog Sensors
SUPPLY AIR SENSOR (SAT)
The factory supplies the discharge (supply) air sensor with the unit
and is pre-wired.
OUTDOOR AIR SENSOR (OAT)
The OAT is supplied with the economizer for 48/50LC*B07-12
units. It is wired through the 12-pin plug (PL6) in the return air
section of the unit and is mounted on the economizer assembly.
For 48/50LC*B14-26 units, the OAT is supplied with the unit and
mounted near the condenser coil. It is wired through the supply air
section and wired to the VAV-RTU Open board at J2- 3 and 4.
UNIT/SIZE
SAT SHIPPING LOCATION/
INSTALLATION LOCATION
LC 07-12
The SAT is secured to the unit’s supply duct opening.
This sensor must be relocated into the supply duct
during unit installation.
LC 14-26
The SAT is mounted through the side of the heat
chamber below the fan deck, and does NOT require
relocation.
Summary of Contents for 48LCB07
Page 4: ...4 Fig 2 VAV RTU Open Control Module ...
Page 8: ...8 Fig 5 VAV RTU Open Control Wiring Diagram 48LC B07 ...
Page 9: ...9 Fig 6 VAV RTU Open Control Wiring Diagram 48LC B08 12 ...
Page 10: ...10 Fig 7 VAV RTU Open Control Wiring Diagram 48LC B14 26 ...
Page 11: ...11 Fig 8 VAV RTU Open Control Wiring Diagram 50LC B07 ...
Page 12: ...12 Fig 9 VAV RTU Open Control Wiring Diagram 50LC B08 12 ...
Page 13: ...13 Fig 10 VAV RTU Open Control Wiring Diagram 50LC B14 26 ...
Page 55: ......