Hello,
I have recently upgraded from an omnistat RC-112 to the RC-2000. I have two geothermal (3stage heat, 2stage cool) units. I connected the hvac wiring per instructions (picture) corresponding to the schema of the previous thermostat. It works for the most part (it seems to reset the desired cool setting to 78 or 85 randomly despite setting it to 70). The hai wiring has me confused, the old RC-112 used 4 wires (red, green , yellow, black), the new RC-2000 only shows three wires (green, yellow, black). What do I do with the red wire (nothing?). Snaplink and haiku aren't reading the new thermostat (haiku same comm failure). For the hai wiring, I just removed the wires from the splicer and inserted them. They had little metal connectors on the end of them. I didn't strip them. The date and time are correct on the RC-2000 (without me setting it), so there must be some communication to the system.
Thanks for any help,
I have recently upgraded from an omnistat RC-112 to the RC-2000. I have two geothermal (3stage heat, 2stage cool) units. I connected the hvac wiring per instructions (picture) corresponding to the schema of the previous thermostat. It works for the most part (it seems to reset the desired cool setting to 78 or 85 randomly despite setting it to 70). The hai wiring has me confused, the old RC-112 used 4 wires (red, green , yellow, black), the new RC-2000 only shows three wires (green, yellow, black). What do I do with the red wire (nothing?). Snaplink and haiku aren't reading the new thermostat (haiku same comm failure). For the hai wiring, I just removed the wires from the splicer and inserted them. They had little metal connectors on the end of them. I didn't strip them. The date and time are correct on the RC-2000 (without me setting it), so there must be some communication to the system.
Thanks for any help,