Viconics VZ7656E Installation Guide User Manual
Page 22

22 | VZ7656E1000W Installation Guide
Cool cph
Cooling stages cycles per
hour
Default value = 4 C.P.H.
Will set the maximum number of cooling stage cycles per
hour under normal control operation. It represents the
maximum number of cycles that the equipment will be
turned on and off in the span of an hour.
Note that a higher C.P.H will represent a higher accuracy
of control at the expense of wearing down mechanical
components faster.
3 or 4 C.P.H.
Deadband
Minimum deadband
Default value = 2.0 °F (1.1 °C)
Minimum deadband value between the heating and
cooling setpoints.
Used only with the setpoints used during communication
failure (ComLost Alarm) while operation is under the
return air sensor. If modified, it will be applied only when
any of the setpoints are modified.
2, 3 or 4 °F ( 1.0 to 2.0 °C )
Units
Sets the display scale of the
controller
Default value = Imp
0 = SI for Celsius / Pa pressure scale.
1 = Imp for Fahrenheit / in. WC pressure scale.
fan del
Fan delay
Default value = Off
Fan delay extends fan operation by 60 seconds after the
call for heating or cooling ends.
Valid only for Auto fan mode. “On” fan mode will leave the
fan always on.
Off or On
CO2 ctrl
CO2 Control Type
configuration
Default value = AV_H3
Determines the value of CO2 to be used for control of the
fresh air damper.
Highest: The highest value among the zones with CO2
sensors is used.
AV_H3: The average of the three highest values among
the zones with CO2 sensors is used.
AV_H5: The average of the 5 highest values among the
zones with CO2 sensors is used.
ToccTime
Temporary occupancy time
Default value = 3 hours
Temporary occupancy time with occupied mode setpoints
when override function is enabled
When the Terminal Equipment Controller is in unoccupied
mode, function is enabled with either the menu or DI1 or
DI2 configured as remote override input.
0,1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 & 12 hours
Cal RS
Room air temperature sensor
calibration
Default value = 0.0 °F or °C
Offset that can be added/subtracted to actual displayed
room temperature
± 5.0 °F ( ± 2.5 °C )