3.2.2 WIRING - LOW VOLTAGE

IMPORTANT: High voltage wiring must not be run in the same conduit as low voltage control or sensor wiring. Failure to comply with this requirement will result in poor or no remote communication and/or in inaccurate sensor reading.

Sixteen (16) wires should be run from each Bard Wall-Mount to the low voltage terminal block in the TCS22. An eight pair shielded cable with 20 gauge copper conductors, such as National Wire & Cable Corporation NQP series cable or equivalent, is recommended for distances up to 45 feet. See Table 1 for distances more than 45 feet. The connection points are shown in Figure 5.

Table 1 Low Voltage Wire Size

Wire Gauge

Maximum Distance

 

in Feet ( meter)

20 gauge, 0.50 mm2

45 (14)

18 gauge, 0.75 mm2

60 (18)

17 gauge, 1.00 mm2

75 (23)

16 gauge, 1.50 mm2

100 (30)

14 gauge, 2.50 mm2

160 (49)

12 gauge, 4.00 mm2

250 (76)

3.2.3WIRING - SENSORS

IMPORTANT: High voltage wiring must not be run in the same conduit as low voltage control or sensor wiring. Failure to comply with this requirement will result in poor or no remote communication and/or in inaccurate sensor reading.

3.2.3.1 Outdoor Temperature Sensor (OTS)

The Outdoor Temperature Sensor (OTS) is supplied as part of the TCS22 package. The Outdoor Temperature Sensor (OTS) is a thermistor type device. The sensor is mounted in a weatherproof junction box suitable for connection to conduit. This sensor is a two (2) wire device.

The Outdoor Temperature Sensor (OTS)

should be mounted on the exterior of the structure at a height above any expected accumulation of snow. It is recommended that the box be mounted securely to the outside wall of the structure and all wiring to the sensor be made through conduit. A one (1) pair shielded cable with 20 gauge copper conductors, such as National Wire & Cable Corporation NQP series cable or equivalent, is recommended for connection to the sensor for distances up to 45 feet. See Table 1 for distances more than 45 feet.

Use wire nuts to connect the cable to the blue and yellow sensor leads in the sensor housing. Polarity is not critical with this sensor. The connection points for the sensor inside the TCS22 are shown in Figure 4.

3.2.3.2 Outdoor Humidity Sensor (OHS)

The Outdoor Humidity Sensor (OHS) is supplied as part of the TCS22 package. The Outdoor Humidity Sensor (OHS) is a bulk polymer type device. The sensor is mounted in a weatherproof junction box suitable for connection to conduit. This sensor is a four (4) wire device, 1 to 5 Vdc output.

The Outdoor Humidity Sensor (OHS) should be mounted on the exterior of the structure at a height above any expected accumulation of snow. It is recommended that the box be mounted securely to the outside wall of the structure and all wiring to the sensor be made through conduit. A two (2) pair shielded cable with 20 gauge copper conductors, such as National Wire & Cable Corporation NQP series cable or equivalent, is recommended for connection to the sensor for distances up to 45 feet. See Table 1 for distances more than 45 feet.

Connect the cable to the terminal blocks in the sensor housing. Polarity is critical with this sensor. The connection points for the sensor inside the TCS22 are shown in Figure 4.

3.2.3.3 Zone Temperature Sensor (ZTS)

The Zone Temperature Sensor (ZTS) is supplied as part of the TCS22 package. The Zone Temperature Sensor (ZTS) is a thermistor type device. The sensor is premounted to the front door of the TCS22. No wiring is required.

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Bard TCS22-***-003 manual Wiring LOW Voltage, Wiring Sensors, Outdoor Temperature Sensor OTS, Outdoor Humidity Sensor OHS

TCS22-***-003 specifications

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