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Viconics VTR7300 Installation Manual User Manual

Page 19

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19 | PIR Ready VTR7300 Series-Installation Guide

SeqOpera Sequence of
operation
Default is: Sequence #1

Selects the initial sequence of operation required by the
installation type and the application

SYSTEM = 2 PIPES

SYSTEM = 4 PIPES

0 = Cooling Only

Available

Available

1 = Heating Only

Available

Available

2 = Cooling / Heating

or
Cooling With
Electric Reheat

Available

Cooling With Electric Reheat

Available

Cooling / Heating

3 = Heating With

Electric Reheat

Available

Not available

4 = Electric Reheat Only

Available

Not available

For 2 Pipe output applications, the system access is limited
if RUI 1 is configured for local changeover COS, COC/NC
or COC/NC. The current water temperature detected by the
RUI 1 then limits the system mode available for the local
configuration or network write.

For sequence 2 & 3, set PulsedHt to On to enable pulsed
electric reheat applications with VR7300B & E

Fan Menu
Mode button menu
configuration
Default is: Menu #4

Menu displayed are dependent on model used and sequence
of operation selected
Auto Mode operation for sequences 2 and 3 is dependent on
Auto Fan parameter

0 = Low-Med-High

3 Speed configuration using 3 fan relays ( L-M-H )

1 = Low-High

2 Speed configuration using 2 fan relays ( L-H )

2 = Low-Med-High-Auto

3 Speed configuration with Auto fan speed mode

using 3 fan relays ( L-M-H-A )

3 = Low-High-Auto

2 Speed configuration with Auto fan speed mode using

2 fan relays ( L-H-A )

4 = On-Auto

Single Speed configuration. Auto is for Fan on demand / On
is On all the time

DHumiLCK
Dehumidification lockout
Default value:
On = Authorized

Conditional parameter to Humidity models
VTR735xX5x00(X)
Typically toggled via the network.
This variable enables or disables dehumidification based on
central network requirements from the BAS front end

On = Dehumidification Authorized

Off = Dehumidification Not Authorized