I bought this Robertshaw 9870i thermostat online and having some trouble installing it in my home. I'm trying to replace my existing Honeywell CT3200 thermostat so that I could combine the humidistat and thermostat as one unit. Basically I have 5 existing wires:
- 2 wires control the humidifier (humidistat) - 3 wires connected to the the existing thermostat (honeywell CT3200) ** Red wire is connected to the Rc terminal (which has a jumper to the R terminal) (Power) ** Black wire is connected to the W terminal (Heat) ** Green wire is connected to the G terminal (Fan)
How do I connect these wires to the Robertshaw 9870i thermostat?
By looking at the installation manual that came with the Robertshaw unit, I should be doing the following (pls correct me if I'm wrong):
Humidistat: - Connect one wire to the Common 24 VAC (C terminal of Robertshaw Thermostat) - Connect other wire to the H terminal which is the humidification relay
Thermostat: - Connect Red wire to the Common 24 VAC (C terminal of Robertshaw Thermostat) - Connect Black wire to the W2 terminal of Robertshaw Thermostat - Connect Green wire to the G terminal of Robertshaw Thermostat
Am I correct? Do I need to set any jumper? Please help. Thanks in advance.
TK