On Friday, December 8, 2017 at 4:13:35 PM UTC-5,
gcot...@earthlink.net wrote:
I have a Totaline Model P474-1035 Programmable Thermostat.
This is the link to the owner's manual:
www.totaline.com/dl/P474-1035Residential,Programmable5-2DayDigitalBatteryThermostat.pdf
page 6 describes how to operate the thermostat MANUALLY:
- the Program Switch is at the "OFF" position.
- the Fan Switch is at the "AUTO" position.
- to set the desired room temperature, use the UP & DOWN buttons.
- to turn the furnace on, move the Mode Switch to "Heat"
- to turn the A/C on, move the Mode Switch to "Cool".
page 17 describes how to adjust the:
- "deadband". What is "deadband"? How many degrees should I set it to?
- cycles per hour. There are 7 values: 2 to 6 degrees; 'd'; and 'dl'. What value should it set it to?
From a thermostat help page at
https://idevices.zendesk.com/hc/en-us/articles/115002664687-Advanced-Thermostat-Controls :
The deadband represents a temperature range around the AUTO mode set point that is your “comfort zone”. For example, with a 4° wide deadband and a setpoint of 70°, the deadband will be 68° - 72°. This keeps the system from bouncing quickly
between heating and cooling when in AUTO mode.
When temperatures fall within the deadband, neither heating nor cooling can occur. A larger deadband will have your system run more economically, while a smaller deadband will have your system hold the temperature closer to the setpoint and increase
comfort. The deadband does not affect your thermostat’s operation when in HEAT, COOL, or EMERGENCY HEAT modes.
Example:
If you have an 8º deadband and you set your desired temperature to 70º in AUTO mode, your heating set point will be 66º and your cooling set point will be 74º.
For the cycles per hour, you don't really want a furnace (or A/C) short-cycling, or running too often for short periods. 2-6 degrees sounds like the span range (how far below the set point the heat kicks on). 2 degrees is fine. 6 degrees would let it get
pretty cold. I don't know what "d" and "dl" are.
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