YOKOGAWA UT55A - Page 205

8-76
IM 05P01C31-01EN
WhenboththeHeatingSideandCoolingSideareinON/OFFControl:
The following shows the operation example.
50%
ON
ON
Cooling-side hysteresis (HYSc)
Neutral (OFF)
Heating-side hysteresis (HYS)
Positive dead band (DB)
DeadBand(DB)
InHeating/coolingcontrol,thepositivedeadbanddenotesthezonewherenoneofthe
heating-side and cooling-side outputs are presented. The negative dead band denotes
thezonewhere
bothoftheheating-sideandcooling-sideoutputsarepresented.
00
50
50
0
0
Negative dead band
Cooling-side
output
Cooling-side
output
Heating-side
output
Heating-side
output
Output (%)
100
Output (%)
100
Positive dead band
100(%)
100(%)
Value of control output before split into
heating- and cooling-side outputs
Value of control output before split into
heating- and cooling-side outputs
8.2SettingControlType(CNT)