[Trainer]

David, The clear relays you pictured control the zone pump and zone fan(s) for the Living Room, Bathroom and Bedroom. The bedroom relay is the bottom one. The fan connection to the relay is the top one on the pump side of the relay. Power for the fan is the top one on the other side facing you as you look at the heater. The power connection is one of the fuses above the relays. If any zone fan works the fan fuse is olay.

Hope this helps you.