User Manual

8
3.3 The principle functions
3.3.1 Comfort area
Advantages:
– Better comfort sensation
– Greater potential energy savings
Economizer tx2 uses the so-called comfort area as a setpoint (see Figure 3-2).
There are two reasons why a field is used as a setpoint.
Comfort sensation:
Optimal working environment conditions exist not just at a specific setpoint for
room temperature and room humidity, but within a particular range.
A temperature setpoint of 22°C and a setpoint for relative humidity of 45% with a
deviation of e.g. ±2°C and ±15%r.h. are typical for office work.
Additionally, it is meaningful to limit absolute humidity at high temperatures; or else,
the air become too muggy. This limit value typically is ca. 11g/kg.
Energy savings:
The greater the comfort area area, the greater the energy savings potential.
Figure 3-2
Comfort area in the h,x diagram