Power supply terminal wiring - EasyIO - LIT-12013983 - Building Management - FW-VAV

FW-VAV Quick Start Guide

Brand
EasyIO
Product name
FW-VAV
Document type
Quick Start Guide
Document number
LIT-12013983
Document revision
0
Revision date
2023-08-16
Language
English

Connect the 24 VAC supply power wires from the transformer to the HOT and COM power terminals as shown in Figure 1 figure 16.

Note: The supply power wire colors may differ on transformers from other manufacturers. Refer to the transformer manufacturer’s instructions and the project installation drawings for wiring details.
Important:
  • To reduce noise, interference, and ground loop problems, connect a 24 VAC supply power to the controller and to all other network devices so that transformer phasing is uniform across network devices. The controller does not require an earth ground connection. However, when you need to ground the secondary of the 24 VAC transformer, make only one ground connection near the transformer. For more information, see the following figure.
Figure 1. Transformer grounding
CAUTION
  • Risk of Property Damage
  • Do not apply power to the controller before checking all wiring connections. Short circuited or improperly connected wires may result in permanent damage to the equipment.