Adds the ability to interlock 4 additional heaters to UC1.

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Used in conjunction with the UC1 Universal Control to easily interlock up to 4 additional 24 VAC, 115 VAC or millivolt controlled appliances with Fixed Speed Auto-Draft Inducers, Power Venter’s (Gas, Oil), Draft Inducers, or In-forcers
It activates the Venter through its connections to the UC1 and in turn relies on the UC1 Fan Prover safety circuit (P1 & P2) to allow its interlocked appliances to operate. Any pre/post-purge settings on the UC1 will be defaulted to the MAC1E.
The MAC4E puts an end to difficult and costly job site wiring nightmares. Circuit board housed in oversized 18 gauge electrical box with multiple knock-outs for easy wiring connections
Country of origin: United States