Rh: 24VAC Power from Heating Transformer; Wiring Diagrams for Furnace Stages Stage 3 Heating (6-Wire Diagram) The wiring diagram for a stage 3 furnace consists of six wires connected to the following terminals: G, W1, W2, C, *, and Rh. This setup is also referred to as a 6-wire diagram. G: Fan Relay; W1: Heat Relay (Stage 1) W2/AUX: Heat Relay.. The wiring diagram for the RC840T-240 shows the proper connections for this relay. To wire the RC840T-240 relay, you will need to connect it to the power supply, the control device, and the electric heater. The relay has four terminals: L1, L2, T1, and T2. L1 and L2 are the line voltage terminals, while T1 and T2 are the load terminals.
Discover the electric heat relay wiring diagram and learn how to properly wire this essential component of an electric heating system. This diagram will guide you through the process of connecting the relay to the power supply, thermostat, and heating elements, ensuring safe and efficient operation. Get all the information you need to successfully install and wire your electric heat relay.. If the VA values in Notes 1 and 2 must be exceeded, use accessory relay-transformer pack-age 38AE900001 (60 Hz units only). 4. Wiring diagrams are general guides only and are not intended for a specific installation. Refer to individual product installation literature. Fig. 6 — Programmable Electronic Thermostat Wiring; 2-Step Cooling/2-Step.