Part 1. Overview
DCM014A51 Design Guide 13
3. Dry Mode
a. When selected, the setpoint is based on the room temperature as not to over cool.
1. Setpoint = Return Air (when the Return Air ≤ 75°F).
2. Setpoint = Return Air – 1°F (when the Return Air > 76°F).
b. The current setpoint is not displayed on the local controller, iTM, or the BACnet Server
setpoint present value during Dry mode.
c. In Dry mode (or Fan mode), the BMS can write the cooling and heating setpoints to the iTM,
and are set to the IDU management point in the iTM. However, the cooling and heating
setpoints are not sent to the indoor unit.
4. Room Temperature Sensing
a. The room temperature can be measured by the following:
1. Indoor unit return air sensor (depending on indoor unit model).
2. Remote temperature sensor (KRCS01-1B/4B).
3. Sensor in the BRC1E73 (local remote controller).
b. The sensing local method depends on the indoor unit configuration (field setting).
c. The BMS cannot send the room temperature to the indoor unit due to the fact that the
room temperature is a read only point for the BMS.
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