Zvc404 Wiring Diagram. Basicalliy the room thermostat is nothing but an on off switch responding to room temp. Instruction sheet zvc404 exp 4 zone valve control 102 399 supersedes.
When using alternative wiring diagram refer to important note. Zvc404 exp 4 zone valve control with priority and 2 powerports zvc406 exp 6 zone valve control with priority and 2 powerports plug in powerport cards for use with all exp controls product no. 1 this device may not cause harmful interference and 2 this device must accept any interference received.
Lets do some simple diagnosis to see why your zone wont shut off.
Connection wire used should be adequate for the intended use. Read or download the diagram pictures wiring for free wiring diagram at supervideoaulascombr. 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference. The tstat posts are labeled t t and the left side has the red wire and right side is the white wire.