Text book temps he said.
Hvac temperature 68 degrees 3 feet off floor.
When its gets with 1 5 degrees of room temperature the back up heat cycles off and the heat pump continues to run trying to keep up to reach temperature but it cannot.
The ibc requires that interior spaces that are intended for human occupancy need to be able to maintain a minimum interior temperature of 68 degrees at a point 3 feet above the floor.
When the temperature in the house drops approximately 2 degrees below the room temperature supplemental heat comes on to assist the heat pump usually in the form of electric resistance heaters.
This can be done actively passively or with a combination of the two methods.
So from the coil to the register a distance of about 3 ft the air heats up 18 19 degrees.
The heating system is not able to heat the unit to at least 68 degrees when it is down to 20 degrees below zero 20 f outside.
For example if area lows average 38 degrees and you want to maintain a temperature of 68 degrees you will need a temperature increase of 30 degrees.
In san francisco heating facilities must maintain a room temperature of 68 degrees fahrenheit measured by a thermometer placed three feet above the floor halfway between the heater and the.
Improperly sized ductwork or hvac if your d uctwork or hvac is the wrong size for your home you won t get the airflow you need.
My friend moved the confenser back to its original place.
His gauge read blue gauge 42 degrees.
The system design is based on the design heating day for the location.
Click image for larger view.
Red gauge 370 degrees.
Research the lowest area temperature.
Thermostat is only reading the temperature of the floor that is being heated cooled.
You can test this by setting a thermometer at least 3 feet away from an outside wall and about 5 feet above the floor.
Recommended range of floor temperatures for those wearing normal footwear 1 figure 2.
A well trained hvac professional can test and assess your system to help you identify the real cause of your heating and cooling issues and determine the best solution for your home and your budget.
Subtract this from the temperature you want to maintain in order to calculate the desired temperature increase.
Dan we are back to step 1.
Temp at coil 48 8 degrees.
2 click table for larger image.
Floor temps for bare feet on different floor coverings.
Relationship between heating flux and surface temperatures at various operative temperatures.