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13. ELECTRICAL DIAGRAM FOR SERIAL ADD-ON (VIA CONTROL)
Important Note:
It is essential to use the three (3) SBI # 51035 relays to make the connection as in 3-relay diagrams. It is possible to
use only two relay White Rodger (SPNC / SPNO # 90-380) for the two-relay diagram. The use of another brand or
model of relay is not recommended since very limited technical support may be provided.
REQUIRES 3 RELAYS (51035) (NOT INCLUDED).
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