Wiring connections comparison - Metasys - LIT-12012005 - Field Device - N2 Controller

Wiring connections comparison - Metasys - LIT-12012005 - Field Device - N2 Controller - 13.0

Modernization Guide for N2 Controllers - Metasys

Product

Network and Communications > N2 Controls > N2 Controller

Document type

User Guide

Document number

LIT-12012005

Version

13.0

Revision date

2023-10-16

Table 1. Wiring connection similarities, differences and implications
Attribute	AHU	FAC3613	CGM09090	Implication
I/O Wiring
Connection Location	See Figure 1 .	See Figure 1 .	Refer to M4-CG Series General Purpose Application Controller Installation Guide (Part No. 24-10143-01698) for information about the CGM controller wiring.	You can reuse the existing I/O wiring if the existing wiring is long enough to reach the controller's I/O wiring connection points. If not, you need to lengthen the wiring.
Connection Type	Fixed screw terminal connectors	Fixed screw terminal connectors	Removable screw terminal connectors	Remove spade lug connectors from I/O wiring.
N2 Wiring
Connection Location	See Figure 1 .	See Figure 1 .	Refer to M4-CG Series General Purpose Application Controller Installation Guide (Part No. 24-10143-01698) for information about the CGM controller wiring.	You can reuse the existing N2 wiring if the existing wiring is long enough to reach the controller's N2 connection point. If not, you need to lengthen the wiring.
Connection Type	Removable, 3-wire screw terminal connector	Removable, 4-wire screw terminal connector	Removable, 4-wire screw terminal connector	Replace the AHU's N2 wiring connector with the controller's.
Power Supply Wiring
Connection Location	See Figure 1 .	See Figure 1 .	Refer to M4-CG Series General Purpose Application Controller Installation Guide (Part No. 24-10143-01698) for information about the CGM controller wiring.	You can reuse the existing power supply wiring if the existing wiring is long enough to reach the controller's power supply connection point. If not, you need to lengthen the wiring.
Connection Type	Removable 3-wire Molex connector	Removable, 3-wire screw terminal connector	Removable, 2-wire screw terminal connector	Remove existing connectors from power supply wiring and use controller's screw connector.

Figure 1. Wiring Layout Comparison of AHU versus FAC

Note: Refer to M4-CG Series General Purpose Application Controller Installation Guide (Part No. 24-10143-01698) for information about the CGM09090 controller wiring and input and output locations.