Venstar T1100REC wiring question
#1
06-28-16, 06:19 AM
Venstar T1100REC wiring question
New to the site but I spent several hours searching previous posts. I have a Carrier 1 stage heat pump with a White/Rodgers thermostat. I'd like to change to a Venstar T1100REC thermostat. Current wiring is O to O, G to G, Y to Y with a jumper to W, R to RC with jumper to RH. The new thermostat only has an R, no RC or RH. From what I've read I just connect R to R. Do I need the jumper from Y to W? Dip switch on the new thermostat has been set for heat pump HP, but not sure whether to to set the O/B dip switch to on or off.
#4
07-03-16, 08:28 AM
Forum Topic Moderator
I would certainly try to connect blue to C at the stat receiver and at the furnace.
The resistor option that is recommended when C is not available should be avoided.
The resistor option that is recommended when C is not available should be avoided.
#5
07-09-16, 05:34 AM
Discovered that the blue wire was already connected to C at the heat pump. Wired thermostat as suggested. Turned to cool mode and unit came on for about 5 or 6 seconds then shut off. Fan alone works. Any suggestions? Thanks.
#6
07-09-16, 07:22 AM
Forum Topic Moderator
The heat pump is outside.
Is the thermostat blue connected to the air handler inside?
Do you have 2 blue wires connected to C at the indoor unit?
Is this a split system or a package unit?
Is the thermostat blue connected to the air handler inside?
Do you have 2 blue wires connected to C at the indoor unit?
Is this a split system or a package unit?
#7
07-09-16, 08:38 AM
I believe the outside unit was replaced several years ago. As far as I know the air handler is original. It's already 95 in the attic crawl space so I'll wait for a cooler day to check the wiring on the air handler.
