Carrier 50TC*D17 Series Installation Instructions Manual page 25

RTU- -MP control system
The RTU- - MP controller, see Fig. 43, provides expanded
stand- - alone operation of the HVAC system plus
connection and control through communication with
several Building Automation Systems (BAS) through
popular third- - party network systems. The available
network systems are BACnet MP/TP, Modbus and
Johnson J2. Communication with LonWorks is also
possible by adding an accessory interface card to the
RTU- - MP. Selection of the communication protocol and
baud rate are made at on- - board DIP switches.
Fig. 43 - - RTU- - MP Multi- - Protocol Control Board
Fig. 44 - - 50TC*D Control Box Component Locations
The RTU- - MP control is factory- - mounted in the 50TC*D
unit's main control box, to the right of the CTB. See
Fig. 44. Factory wiring is completed through harnesses
connected to the CTB. Field connections for RTU- - MP
sensors will be made at the Phoenix connectors on the
RTU- - MP board. The factory- - installed RTU- - MP control
includes the supply- - air temperature (SAT) sensor. The
outdoor air temperature (OAT) sensor is included in the
FIOP/accessory EconoMi$er2 package.
Refer to Table 9, RTU- - MP Controller Inputs and Outputs
for locations of all connections to the RTU- - MP board.
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