Honeywell RLV4305A1000/E1 Questions & Answers

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1 Questions

  • I tried to install this model of Honeywell thermostat to replace an old 4-wire thermostat. The installation instruction are very brief and incomplete. The wiring to the old thermostat contained two black wires bundled together and two white wire bundled. Also, there are single white and black wires. These single wires are not load bearing. How do I connect the two wires on the new Honeywell thermostat to this 4-wire setup?