Viconics VTR7300 Installation Manual - Manual (Page 23)

23 | PIR Ready VTR7300 Series-Installation Guide
Auto Fan
Auto Fan Function
Default value: AS
Auto Speed Fan Mode operation for Fan Sequences 2 and 3
AS = Auto Speed during occupied periods. Fan is always on
during occupied periods.
AS AD = Auto Speed / Auto Demand during occupied
periods.
Cool cph
Cooling output cycles per
hour
Default value = 4 C.P.H. Will set the maximum number cycles per hour under
normal control operation. It represents the maximum
number of cycles that the equipment will turn ON and OFF
in one hour.
Note that a higher C.P.H will represent a higher accuracy
of control at the expense of wearing mechanical
components faster.
Range is: 3, 4, 5, 6,7 & 8 C.P.H.
Heat cph
Heating output cycles
per hour
Default value = 4 C.P.H. Will set the maximum number cycles per hour under normal
control operation. It represents the maximum number of
cycles that the equipment will turn ON and OFF in one hour.
Note that a higher C.P.H will represent a higher accuracy of
control at the expense of wearing mechanical components
faster.
Range is: 3, 4, 5, 6, 7 & 8 C.P.H.
CoolNoNc
Normally open or close
device
Default value = NC Adjust the type of valve used for heating
 NC = Valve is normally closed when no power is present
 NO = Valve is normally opened when no power is present
HeatNoNc
Normally open or close
device
Default value = NC Adjust the type of valve used for heating
 NC = Valve is normally closed when no power is present
 NO = Valve is normally opened when no power is present
Fan cont
Fan control
Default value = On Fan control in heating mode.
On; the controller in all cases will always control the fan
(terminals Low-Med
—Hi Fan Speed).
Valid in any fan sequences and all the available fan modes
Off Auto; the controller in all cases will disable the fan (any
terminals Low-Med
—Hi Fan Speed). ONLY when the local fan
mode is set to Auto. Valid in all fan sequences with auto mode
Off All; the controller in all cases will disable the fan (any
terminals Low-Med
—Hi Fan Speed). When the local fan mode
is set to ANY mode. Valid in all fan sequences and all local fan
modes