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Viconics VTR7300 Installation Manual User Manual

Page 21

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21 | PIR Ready VTR7300 Series-Installation Guide

Unocc HT
Unoccupied heating
setpoint
Default value = 62 °F

Unoccupied heating setpoint range is:
40 to 90 °F ( 4.5 to 32.0 °C )

Unocc CL
Unoccupied cooling
setpoint limit
Default value = 80 °F

Unoccupied cooling setpoint range is:
54 to 100 °F ( 12.0 to 37.5 °C )

Heat max
Maximum heating
setpoint limit
Default value =
90 °F ( 32 °C )

Maximum occupied & unoccupied heating setpoint adjustment.

Heating setpoint range is: 40 to 90 °F ( 4.5 to 32.0 °C )


Cool min
Minimum cooling setpoint
limit
Default value =
54 °F ( 12 °C )


Minimum occupied & unoccupied cooling setpoint adjustment.

Cooling setpoint range is: 54 to 100 °F ( 12.0 to 37.5 °C )

Pband
Proportional band setting
Default is : 3

Adjust the proportional band used by the Terminal Equipment
Controller PI control loop.

Note that the default value of 3.0 °F ( 1.2 °C ) gives
satisfactory operation in most normal installation cases.

The use of a proportional band different than the factory one is
normally warranted in applications where the Terminal
Equipment Controller location is problematic and leads to
unwanted cycling of the unit. A typical example is a wall
mounted unit where the Terminal Equipment Controller is
installed between the return and supply air feeds and is directly
influenced by the supply air stream of the unit.

VALUE

°

F SCALE PBAND

°

C SCALE

PBAND

3

3 F

1.2 C

4

4 F

1.7 C

5

5 F

2.2 C

6

6 F

2.8 C

7

7 F

3.3 C

8

8 F

3.9 C

9

9 F

5.0 C

10

10 F

5.6 C