Control Functions; Control Sequence - Vector TCY-BH-U Manual

Control Functions

The controller is designed to control binary heating and/or cooling systems.
Setpoint
Minimum and Maximum Set Point Limits: Limits the adjustable range of the loop set point. The limits for heating and
cooling sequence may be chosen individually.

Control Sequence

Economy set point shift X
point W is reduced and the cooling set point W
H
Dead Zone Span X
DZ
Switching Hysteresis: Defines the difference between switching on and switching off an output. A small hysteresis will
increase the number of switching cycles and thus the wear on associated equipment.
Delay OFF: Prevents a too short running cycle for the control output by setting a minimum running time.
Delay ON: Prevents a too short stopping cycle for the control output by setting a minimum stopping time.
Binary Control
ON
OFF
X
H
T Room Humidity
w Setpoint De-humidifying Mode X
DH
Q Humidifying Output
HU
Temperature setback (TSET)
Shift the humidity set point towards a defined TSET setpoint CP 15 depending on the outdoor temperature.
Temperature setback becomes active when the outside temperature drops below the activation limit of temperature setback
CP17. The full temperature setback is reached when the temperature reaches the full limit CP16. The actual set point will in
this case be equal to the TSET setpoint.
Temperature setback may be enabled with CP14.
Setpoint
Temperature Setback
W
CP15
Doc:70-07-0102, V1.1, Date: 20100504
Subject to alteration
: This function shifts the set point while the operation mode is Economy. The heating set
SBY
C
: The dead zone span lies between the humidifying and the de-humidifying set point.
Q Q
HU DH
W
W
C
H
X
X X
DZ
SBY SBY
w
HU
SBY
Q
DH
CP16 CP17
increased by the value of the Economy set point shift X
T [°C, F]
Setpoint Humidifying Mode
Economy Shift
De-humidifying Output
T [°C, F]
© Vector Controls GmbH, Switzerland
Humidistat TCY-BH-U
.
SBY
D Dead Zone
Z
X Hysteresis
H
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