Two AC Units and Thermostats, One Furnace / Heater

[AZ_JOE]

On the weekend, the weather deemed the need to use the furnace. My 2024 Reflection 296RDTS has two FURRION AC units and thermostats, and a single SUBURBAN furnace. Both FURRION thermostats are identical and have "Cool", "HEAT", "FAN" and "DRY" settings, along with "L", H", "A" and "O" settings.

1. Are single furnaces connected and controlled by just one thermostat? I suspect so. The main area thermostat.
2. Do / does the roof mounted AC unit(s) move heated air from the furnace? I suspect not as we only sensed cold air coming from the ceiling ducts.
3. Do the fan setting on thermostat control the fan in the furnace? If so, what should the fan setting be set to for both Heat and Cool? I am thinking "A" for Auto?
4. Lastly, the bedroom temperature is significantly cooler than rest of the trailer. I included the floor plan of my TT for reference. I count four near floor wall-mount ducts. Two in the main area, one each in the bathroom and bedroom. Question, can the thermostat in the bedroom be used to control the furnace wiring permitted?

The GDRV manual has little information on the HVAC system and no schematic. Your insight is appreciated.

Joe

 

[traveldawg]

On the weekend, the weather deemed the need to use the furnace. My 2024 Reflection 296RDTS has two FURRION AC units and thermostats, and a single SUBURBAN furnace. Both FURRION thermostats are identical and have "Cool", "HEAT", "FAN" and "DRY" settings, along with "L", H", "A" and "O" settings.

1. Are single furnaces connected and controlled by just one thermostat? I suspect so. The main area thermostat.

Pretty sure just the main room thermostat controls the heat.

1. Do / does the roof mounted AC unit(s) move heated air from the furnace? I suspect not as we only sensed cold air coming from the ceiling ducts.

Furion ACs will want to run the fan when using the furnace. I guess they think it will circulate warm air. I think most folks find it only seems to move cool air.

1. Do the fan setting on thermostat control the fan in the furnace? If so, what should the fan setting be set to for both Heat and Cool? I am thinking "A" for Auto?

The furnace only has one fan speed. The fan settings are for the Furrion AC unit in the ceiling. I think it may be best just to turn that ceiling fan off.

1. Lastly, the bedroom temperature is significantly cooler than rest of the trailer. I included the floor plan of my TT for reference. I count four near floor wall-mount ducts. Two in the main area, one each in the bathroom and bedroom. Question, can the thermostat in the bedroom be used to control the furnace wiring permitted?

I'd guess you would have to run wires from the bedroom thermostat to the furnace replacing the connections from the main thermostat. My suggestion would be to run a low speed fan to move warm air from one location to another.

The GDRV manual has little information on the HVAC system and no schematic. Your insight is appreciated.

Joe

I'm not the expert on the TT series. So others may correct some of my assumptions.

I find that running a small electric heater at night is preferable to running the furnace; especially since I am already paying for electric at campsites. We set out furnace to come on if the temp dips below 63 degrees. When we get up we run the furnace to bring the whole RV up to a comfy temp.

While Furrion thinks they know what we want for producing cool and warm air, many believe they have missed the mark in how the unit operates and how it senses interior temperature; there are tons of posts here about that.

Hoping some of this helps.....

 

[CedarCreekWoody]

As stated above the thermostat in the main living area controls the furnace.

 

[AZ_JOE]

Pretty sure just the main room thermostat controls the heat.

Furion ACs will want to run the fan when using the furnace. I guess they think it will circulate warm air. I think most folks find it only seems to move cool air.

The furnace only has one fan speed. The fan settings are for the Furrion AC unit in the ceiling. I think it may be best just to turn that ceiling fan off.

I'd guess you would have to run wires from the bedroom thermostat to the furnace replacing the connections from the main thermostat. My suggestion would be to run a low speed fan to move warm air from one location to another.


I'm not the expert on the TT series. So others may correct some of my assumptions.

I find that running a small electric heater at night is preferable to running the furnace; especially since I am already paying for electric at campsites. We set out furnace to come on if the temp dips below 63 degrees. When we get up we run the furnace to bring the whole RV up to a comfy temp.

While Furrion thinks they know what we want for producing cool and warm air, many believe they have missed the mark in how the unit operates and how it senses interior temperature; there are tons of posts here about that.

Hoping some of this helps.....

Thank you traveldawg!

 

[AZ_JOE]

Pretty sure just the main room thermostat controls the heat.

Furion ACs will want to run the fan when using the furnace. I guess they think it will circulate warm air. I think most folks find it only seems to move cool air.

The furnace only has one fan speed. The fan settings are for the Furrion AC unit in the ceiling. I think it may be best just to turn that ceiling fan off.

I'd guess you would have to run wires from the bedroom thermostat to the furnace replacing the connections from the main thermostat. My suggestion would be to run a low speed fan to move warm air from one location to another.


I'm not the expert on the TT series. So others may correct some of my assumptions.

I find that running a small electric heater at night is preferable to running the furnace; especially since I am already paying for electric at campsites. We set out furnace to come on if the temp dips below 63 degrees. When we get up we run the furnace to bring the whole RV up to a comfy temp.

While Furrion thinks they know what we want for producing cool and warm air, many believe they have missed the mark in how the unit operates and how it senses interior temperature; there are tons of posts here about that.

Hoping some of this helps.....

Thank Larry. I appreciate your insight and the time you spent addressing my questions.