Wanting to design a board that has a 24 vac power supply and output with temperature/pressure probe inputs and possibly thermostat inputs.

Overview of project: Wanting help with my offgrid DC house. My cooling is a 48 vdc ground source heat pump that goes to a heat exchanger with a fan under it (also 48 vdc).  These fans will be powered via a relay with a 24 vac coil and a contact voltage above 48 vdc. My heating is a in slab radiant water loop system. These pieces include 24 vdc water circulator pumps and solenoid valves which will be actuated by a relay with a 24 vac coil and a 24 vdc rated contactor.

Why 24 vac?
   Vent dampers and common thermostats all seem to use 24 vac.  I am hoping to open/close the vent dampers based on temperature inputs from the probes/thermostats.

What I’m looking for: A board that can be programmed (via board interface or computer interface) accept temperature/pressure or thermostat input and output 24 vac to common lead (can always have voltage) then a close/open lead depending on the circumstances.

Skills required:
– PCB design
– 24VAC systems
– Thermostat/temperature probe experience
– Schematic capture

Size: Medium
Duration: 1 to 3 months
Expertise: Intermediate

Hourly Range: $40.00-$65.00

Posted On: July 22, 2024 04:25 UTC
Category: Prototyping
Skills:Electronics, Electrical Engineering, PCB Design, Altium Designer

Country: United States

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