Lone Star Cooling and Heating
Get help with Smart Thermostat Installation
Call Lone Star Cooling and Heating, have us call you, or describe the issue.
Prefer to talk?
Call (325) 219-0005Smart and learning thermostats fitted to the heating and cooling they will run, with the power supply, equipment settings and schedule set up so they control the system properly and save what they can.
01Smart thermostats
Some people are choosing one for the first time, and some are living with one that is not behaving.
Checking and changing the temperature from away is the most common reason to fit one. It needs a thermostat that suits the equipment, a steady power supply at the wall in most cases, and a wireless signal that reaches where the thermostat hangs.
Smart thermostats need steady power for their screens and wireless connections. Without a common wire, many draw power through the heating or cooling wires, which can leave them rebooting, dropping offline or clicking the equipment on and off. A common wire or an adapter at the equipment usually settles it.
Short cycles, backup heat running more often, or a mode that does the opposite of what is set usually trace to setup: the wrong equipment type, a heat pump valve setting reversed, or stages configured wrongly. Correcting the configuration fixes most of it without new parts.
A schedule nobody set, or one the occupants override all day, saves nothing. A smart thermostat helps when its schedule and setbacks follow how the building is really used, and some models learn that pattern or notice when nobody is there.
Many older round and lever thermostats hold a small glass tube of mercury. Replacing one is a common moment to move to a smart model, and the old unit goes to a hazardous waste or recycling drop-off rather than the household trash.
02The common wire
How a smart thermostat gets its power shapes the rest of the job.
The thermostat gets constant power from the equipment, so nearly any model that suits the system can go straight on the wall. A technician confirms the wire is connected at both ends, because a spare conductor is sometimes folded back unused inside the wall.
The choices are putting a spare conductor in the existing cable to use, running a new cable to the equipment, fitting an adapter at the equipment, or choosing a model built to manage without one. Models that borrow power from other wires work on many systems and misbehave on some.
Some variable-speed systems talk to their own control over a digital connection rather than separate wires. A third-party smart thermostat may run them only in a basic mode that gives up features, and the manufacturer’s own control is often the better fit.
Smart Thermostat Installation
Serving Abilene, TX.
03What they save
A smart thermostat changes when the system runs, not how efficiently it runs.
The saving comes from letting the building drift warmer in summer and cooler in winter while it is empty or everyone is asleep, then bringing it back before it is needed. A building whose old thermostat held one temperature all day and night has the most to gain. One whose schedule was already set and kept to has much less, and the smart features mostly add convenience.
On a heat pump, deep setbacks can backfire, because recovering from them may call on the backup heat, which costs more to run than the heat pump itself. A thermostat set up for the heat pump can manage that recovery. None of this cleans a dirty coil, seals a leaking duct or cools a room the system cannot reach.
04Whether it fits
Most systems can take a smart thermostat. These are the cases that need a closer look.
Baseboard heaters and some wall heaters are switched at full household voltage, not the low voltage most smart thermostats use. They need a model made for line voltage, or a low-voltage control added at the heater.
Remote control, schedules changed from a phone and software updates all depend on the thermostat holding a steady wireless connection where it is mounted, which thick walls or distance from the router can undermine.
Where one system serves several zones through a damper panel, each thermostat reports to that panel. A smart thermostat has to suit the panel and its wiring, and swapping one zone at a time can leave the others out of step.
05Questions
Most smart thermostats work best with one, because it gives them steady power. Where there is none at the wall, a spare wire in the existing cable, a new cable, or an adapter at the equipment can supply it, and a few models are designed to manage without it.
It can, when it lets the building sit warmer in summer and cooler in winter while people are out or asleep. If the old thermostat was already set back on a schedule people kept to, the difference is small. The equipment itself is no more efficient than before.
Many can, if they are set up for a heat pump and wired for its reversing valve and backup heat. Setup matters: on a heat pump, a large setback can bring on the backup heat while the building warms back up unless the thermostat is configured to manage that recovery.
What the system is doing, when it started, what the thermostat is set to and what it reads, and whether the outdoor unit is running. The age of the equipment and a photo of its label help a technician arrive prepared.
Lone Star Cooling and Heating
Call Lone Star Cooling and Heating, have us call you, or describe the issue.
Prefer to talk?
Call (325) 219-0005