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additional components.
5.3 External Staging Control Wiring
WARNING
Improper field wiring may result in fire or explosion which can cause property damage, severe injury, or death. Make only wiring connections which are in accordance with the Installation and Operation manual.
AVERTISSEMENT
Un câblage incorrect lors de l’installation peut causer un incendie ou une explosion pouvant entraîner des dommages matériels, de graves blessures ou la mort. Ne faire seulement que les connexions conformes au Manuel d’installation et d’exploitation.
The wiring methods in this section must be used to connect an external staging control, such as a multiple boiler control, building automation system, energy management system, etc.) Other wiring methods may be unsafe.
Figure 15 shows how to wire the external controller to the Copper Brute II’s field wiring panel, which is located on the right side of the Copper Brute II.
Most of the time, the number of stages from the external control will match the number of stages on the Copper Brute II. However, in some instances, the controller will not have enough staging capability to work with all of the stages on a Copper Brute II unit (for instance, using an 8-stage external control with four 4-stage Copper Brute II units.) In these instances, it is very important to follow the instructions in this section Figure 15 shows how to combine stages on the Copper Brute II for those instances when the external controller cannot control all the stages available.
NOTE: The only time Copper Brute II stages should be jumpered is when the Copper Brute II has an external control, and the Copper Brute II is used in Mode 6. In all other modes, when the Copper Brute II controls its stages, the terminals shown in Figure 15 must NOT be jumpered.