Sensors
The
S terminals provide inputs for Discharge Air Sensor (
S), and Outdoor Temperature
SENSOR
DA
Sensor (
S) and Static Pressure Sensor (SPS). The DAS and OTS sensors are
Type
OT
NTC
III
thermistors rated at 10K Ohms @ 77° F.
Discharge Air Sensor
Mount the discharge air sensor in the main supply duct out of the line of sight of the heat exchanger
or cooling coil and upstream of any duct transitions or zone dampers. Wire the sensor to the
S and
DA
DAS terminals on the panel. The sensor is used for High and Low Limit protection.
ZPA-DTS
Outdoor Temperature Sensor (Optional)
The outdoor temperature sensor is used for High and Low Balance Point control in heat pump and
fossil fuel applications. Mount the sensor inside the outdoor unit where it will not be directly exposed
to sunlight, water, snow or ice. Wire the sensor to the
S and
S terminals on the panel.
OT
OT
S
E
N
S
O
R
ENCLOSURE
ZPA-OTS
Summary of Contents for ZP4-ESP
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