Digital Circuit Board Wiring Diagram Thermostat. Ive got 4 wires at my current thermostat. 120w power amplifier pcb layout design power amplifiers amplifier power supply.
Otherwise the arrangement wont function as. Rheemruud heating and air conditioning parts. Here by connecting the loads heater and cooler relays l1 and l2 we can build a simple electronic thermostat circuit that can be constructed.
Thermostat wiring and wire color chart thermostat wiring colors code.
Armstrong hvac manuals parts lists wiring diagrams age data tag decoder i have an ultra sx 80 furnace the fan runs whether thermostat has triggered it to turn on or not however air er control timer board fits brand 28pv28 r40403 003 grainger lennox ducane ignition circuit 52m46 shortys supplies limit switch q a 5 troubleshooting goodman b18099. Vt1 1250v x r1r1r2r3 vt2 1250v x r1r2r1r2r3 where. The thermostat uses 1 wire to control each of your hvac systems primary functions such as heating cooling fan etc. K2 cool st9103a oil electronic fan timer r w y g c thermostat c n2 m1 m2 cn6 9 k1 circulation blower r8991 oil primary control note.