AERCO Boiler Valve Controller (BVC) PRIOR to Serial-12-840-1 - Manual (Page 19)

INSTALLATION
19
2.4.4
23B
Connecting the Required Electrical Components (12 Boiler Version)
1. Refer to Figure 6 illustrating the Boiler I/O Box and locate the Auxiliary (AUX) Relay
terminals on the lower right terminal strip.
2. Connect the NO (Normally Opened) and COM (Common) terminals of the AUX Relay (on
the Boiler I/O Box) to the appropriate terminals of the Boiler Valve Controller as shown in
Figure 6 and Figure 9. Tables summarizing the connection terminals on the BVC follow.
Table 3 - BVC Connection Terminals from Boiler I/O Box AUX Relay (12 Boiler Sys)
12 Boiler System
Terminal Block
Connections
Boiler I/O Box
NO Terminal
Boiler I/O Box
COM Terminal
Boiler #1 1 13
Boiler #2 2 14
Boiler #3 3 15
Boiler #4 4 16
Boiler #5 5 17
Boiler #6 6 18
Boiler #7 7 19
Boiler #8 8 20
Boiler #9 9 21
Boiler #10 10 22
Boiler #11 11 23
Boiler #12 12 24