Fan Interlock Wiring Diagram. You should have a relay with a 120 volt coil between the switch and the exhaust fan. The hb humidistat provides manual low voltage 24 vac control of humidifiers in central heating and air conditioning systems.
You should have a relay with a 120 volt coil between the switch and the exhaust fan. According to the fan currents 2a. Connect as detailed in wiring diagram see section 11 gas valve.
If i turn on the ventilation fan the furnace fan and the bathroom fan.
3 wiring diagrams for four element furnaces combination fan and heater loads separate fan and heater loads two pole wiring m7 m8 to 4th element h h to 24vac. 3ø wiring diagrams 1ø wiring diagrams diagram er9 m 3 1 5 9 3 7 11 low speed high speed u1 v1 w1 w2 u2 v2 tk tk thermal overloads two speed stardelta motor switch m 3 0 10v 20v 415v ac 4 20ma outp uts diagram ic2 m 1 240v ac 0 10v outp ut diagram ic3 m 1 0 10v 4 20ma 240v ac outp uts these diagrams are current at the time of publication. Stop lights page l 3 4. Wiring diagram fan interlock wiring diagram 9 out of 10 based on 100 ratings.