Hi Everyone,
First time poster and really in need of some basic help. I am able to perform simplewiring, but I need help understanding how a particular relay fits into the picture. The below setup was installed by the electrician when we bought the house, unfortunately I had to relocate the box and move things around due to some new construction. Although I wrote down the wiring, I lost that paper and now am at a loss trying to reassemble this circuit.
I want to be able to turn on the bathroom fan from either timer, each of them would share the same circuit as the relay. When a timer expires, the relay breaks the circuit and the fan turns off. If both timers are in use, the last timer to turn off breaks the circuit and turns off the fan.
Each bathroom has one outlet box, and within each box there is a light switch for two halogen bulbs and the timer (ie. Two devices per OB in each bathroom).
The exhaust fan is an Lifebreath 155 HRV that has a panel which contains a dry contact point, for operation by mechanical timers. I am using the Lutron digital timers via the relay to control this contact point. When powered, the relay completes the dry contact point to turn on the HRV.
The timers are Lutron MA-T51MN-WH, multi-location requiring a neutral.
I would use the normal HRV timers by Lifebreath, but I can’t as I only have a two wire line run to the bathroom OB’s and not a three wire line needed for those timers. As such, I am assumedly forced to use the dry contact point.
As always, thanks for any help.
First time poster and really in need of some basic help. I am able to perform simplewiring, but I need help understanding how a particular relay fits into the picture. The below setup was installed by the electrician when we bought the house, unfortunately I had to relocate the box and move things around due to some new construction. Although I wrote down the wiring, I lost that paper and now am at a loss trying to reassemble this circuit.
I want to be able to turn on the bathroom fan from either timer, each of them would share the same circuit as the relay. When a timer expires, the relay breaks the circuit and the fan turns off. If both timers are in use, the last timer to turn off breaks the circuit and turns off the fan.
Each bathroom has one outlet box, and within each box there is a light switch for two halogen bulbs and the timer (ie. Two devices per OB in each bathroom).
The exhaust fan is an Lifebreath 155 HRV that has a panel which contains a dry contact point, for operation by mechanical timers. I am using the Lutron digital timers via the relay to control this contact point. When powered, the relay completes the dry contact point to turn on the HRV.
The timers are Lutron MA-T51MN-WH, multi-location requiring a neutral.
I would use the normal HRV timers by Lifebreath, but I can’t as I only have a two wire line run to the bathroom OB’s and not a three wire line needed for those timers. As such, I am assumedly forced to use the dry contact point.
As always, thanks for any help.
Last edited: