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Viconics VT7606E Installation Manual User Manual

Page 23

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23

| PIR Ready VT7600 Series-Installation Guide

028-0363-02

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

turned 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 compo-

nents faster.

3 or 4 C.P.H.
For multi stage models, cool cph applies to Y1 & Y2
For heat pump models, cool cph applies to Y1 &

Y2 in cooling and heating independently of the

reversing valve position

Deadband

Minimum deadband

Default value =

2.0 °F

(1.1 °C)

The minimum deadband value between the heating and

cooling setpoints. When modified, it will take effect only

when any of the setpoints are modified again.
Range is:

2, 3, or 4 °F, 1.0 °F increments (1.0 to 2.0 °C,

0.5 °C increments)

Fan cont

Fan control

Default value =

On

Fan control in heating mode.

When selecting On; the Terminal Equipment Controller in

all cases will always control the fan (terminal G).

Valid for On or Auto fan mode

When selecting Off; the fan (terminal G), when heating

stages (terminals W1 & W2) are solicited, will not be

energized. The fan in this case will be controlled by the

equipment fan limit control.

Valid only for Auto fan mode. On fan mode will leave the

fan always on.

ON OR OFF

For multi stage models, fan control applies to W1 &

W2

For heat pump models, fan control applies to W1

only (Emergency heat)

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

TOccTime

Temporary occupancy

time

Default value =

2 hours

Temporary occupancy time with occupied mode setpoints

when override function is enabled.

When the Terminal Equipment Controller is in unoccu-

pied mode, function is enabled with either the menu or

UI2 configured as remote override input.
Range is:

0,1, 2, 3, 4, 5, 6, 7, 8, 9, 10, & up to 24 hours

Cal RS

Room temperature

sensor calibration

Default value =

0.0 °F

or °C

Offset that can be added/subtracted to the actual dis-

played room temperature
± 5.0 °F, (± 2.5 °C)