Cable and wire length guidelines - BCPro - Part No. 24-10143-01663 - Field Device - PCV: Programmable VAV Box Controller

CH-PCV1930 VAV Controller Installation Instructions

Brand
BCPro
Product name
PCV: Programmable VAV Box Controller
Document type
Installation Guide
Document number
Part No. 24-10143-01663
Document revision
B
Revision date
2019-03-22
Language
English

The following table defines cable length guidelines for the various wire sizes that may be used for wiring low voltage (<30 V) input and outputs.

Table 1. Cable length guidelines

Guideline

Wire size/Gauge and type

Maximum cable length and type

Assumptions

A

1.0 mm (18 AWG) stranded copper

457 m (1,500 ft) twisted wire

100 mV maximum voltage drop

Depending on the cable length and the connected input or output device, you may have to define an offset in the setup software for the input or output point.

0.8 mm (20 AWG) stranded copper 297 m (975 ft) twisted wire

297 m (975 ft) twisted wire

0.6 mm (22 AWG) stranded copper 183 m (600 ft) twisted wire

183 m (600 ft) twisted wire

0.5mm (24 AWG) stranded copper 107 m (350 ft) twisted wire

107 m (350 ft) twisted wire

B

1.0 mm (18 AWG) stranded copper

229 m (750 ft) twisted wire

100 mV maximum voltage drop

Depending on the cable length and the connected input or output device, you may have to define an offset in the setup software for the input or output point.

0.8 mm (20 AWG) stranded copper 297 m (975 ft) twisted wire

137 m (450 ft) twisted wire

0.6 mm (22 AWG) stranded copper 183 m (600 ft) twisted wire

91 m (300 ft) twisted wire

0.5mm (24 AWG) stranded copper 107 m (350 ft) twisted wire

61 m (200 ft) twisted wire

C

See Maximum cable length versus load current to select wire size/gauge.

Use stranded copper wire.

See Maximum cable length versus load current to determine cable length.

Use twisted wire cable.

N/A