Difference between revisions of "David"
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===heated roofs automation=== | ===heated roofs automation=== | ||
The first question that came to mind for this project was to be sure that there was a UL approved product that we could connect the control microcontroller to. There are a number of options. This one is the most flexible. It allows you override the automatic system and turn the heaters off and on from the relay since it has a HOA switch (Hand control on, Off , or Automatic). You | |||
Veris V321 : Enclosed Power Duty Relay, 20A DPDT N.O., Coil: 24VAC/DC, 120VAC, w/2 HOA Switch, Relay Power LED, UL | |||
Right now the electrician is providing this switch. In the new scheme you would deliver the product with this relay/switch that mounts to the panel. In addition you would need to have them install a [http://www.homedepot.com/p/Packard-20VA-120-20-240-Volt-24-Volt-Secondary-2-ft-Mount-Transformer-PF42420/203565056?MERCH=REC-_-PIPHorizontal1_rr-_-202312933-_-203565056-_-N 24volt transformer] (like is used to control doorbells or zone valves) and an outlet for the microcontroller usb cord. | |||
====Veris V321 : Enclosed Power Duty Relay, 20A DPDT N.O., Coil: 24VAC/DC, 120VAC, w/2 HOA Switch, Relay Power LED, UL ==== | |||
The Victory 321 DPST power duty enclosed relays combine an industrial-strength relay with installation flexibility...use the nipple mount to attach to any enclosure. One coil input controls the state of two power-rated contacts for simultaneous control of two devices, or both poles of a single-phase load. Each output is enabled with a Hand-Off-Auto switch for local control. The Victory series does not require a dedicated field enclosure, so it is ideal for retrofit projects. Field-selectable high and low voltage coil inputs provide on-site versatility. | The Victory 321 DPST power duty enclosed relays combine an industrial-strength relay with installation flexibility...use the nipple mount to attach to any enclosure. One coil input controls the state of two power-rated contacts for simultaneous control of two devices, or both poles of a single-phase load. Each output is enabled with a Hand-Off-Auto switch for local control. The Victory series does not require a dedicated field enclosure, so it is ideal for retrofit projects. Field-selectable high and low voltage coil inputs provide on-site versatility. | ||
*[http://www.veris.com/Item/ | *[http://www.veris.com/Item/V431.aspx V321 relay] | ||
*[http://www.veris.com/docs/Datasheets/V321_V421_d0115.pdf | *[http://www.veris.com/docs/Datasheets/V321_V421_d0115.pdf V321 install] | ||
* | *[https://www.energycontrol.com/Veris-V321-20A-DPST-Relay-p/v321.htm V321 $36.00] | ||
Revision as of 15:42, 10 October 2015
heated roofs automation
The first question that came to mind for this project was to be sure that there was a UL approved product that we could connect the control microcontroller to. There are a number of options. This one is the most flexible. It allows you override the automatic system and turn the heaters off and on from the relay since it has a HOA switch (Hand control on, Off , or Automatic). You
Right now the electrician is providing this switch. In the new scheme you would deliver the product with this relay/switch that mounts to the panel. In addition you would need to have them install a 24volt transformer (like is used to control doorbells or zone valves) and an outlet for the microcontroller usb cord.
Veris V321 : Enclosed Power Duty Relay, 20A DPDT N.O., Coil: 24VAC/DC, 120VAC, w/2 HOA Switch, Relay Power LED, UL
The Victory 321 DPST power duty enclosed relays combine an industrial-strength relay with installation flexibility...use the nipple mount to attach to any enclosure. One coil input controls the state of two power-rated contacts for simultaneous control of two devices, or both poles of a single-phase load. Each output is enabled with a Hand-Off-Auto switch for local control. The Victory series does not require a dedicated field enclosure, so it is ideal for retrofit projects. Field-selectable high and low voltage coil inputs provide on-site versatility.
