Viconics VTR8300 Series User Interface Manual page 36

36
Pulsed heating
Default value: Off
No. of pipes
Default: 2 Pipes
Operation seq.
Default: Cool only
Purge sample
Default: 2 hrs
Purge open
Default: 2 min
Viconics Technologies Inc. | 7262 Marconi
028-6045-06
Pulsed heating
VDC output configuration (VC3000 series model dependent)
Off: Regular On-Off control for VC350xE models only. Can be used with 2 & 4 pipes
applications.
On: VDC SSR electric heat 10 second pulsed time base modulation for VC340xE
models only. Can only be used with 2 pipes system only.
Occ Out: VDC Occupancy output follows local device occupancy for VC3514E model
only.
• Occupied & Temporary Occupied = Contact closed
• Stand-By & Unoccupied = Contact opened
Choices: Off, On and Occ Out
Number of Pipes
Defines the type of system installed.
Choices: 2 pipe or 4 pipe
Sequence of Operation
Selects the initial sequence of operation required by the installation type and the
application.
Mode
Cool only
Heat only
Cool/Heat
Heat-Rht
Reheat
For 2 Pipe output applications, the system access is limited if RUI1 is configured
for local changeover COS, COC/NC or COC/NC. The current water temperature
detected by the RUI1 limits the system mode available for the local configuration or
network write. For sequence "electric reheat", set PulsedHt to "On" to enable pulsed
electric reheat applications with VC3400E & VC3404E.
Choices: Cool only, Heat only, Cool/Heat, Heat-Rht and Reheat
Purge Sample Period
Time interval between valve samples. Will open valve for a short period adjusted by
"Purge open" parameter to sample pipe temperature to decide between heating or
cooling mode.
Adjustable: 0 to 4 hours (0 hours disables the function)
Purge Open
Time the valve opens to sample pipe temperature to decide between heating or
cooling mode.
Adjustable: 1 to 3 minutes
| Montreal, Quebec, Canada | H2R 2Z5
Number of Pipes
2 Pipe
Cooling only
Heating only
Cooling with electric reheat
Heating with electric reheat
Electric reheat only
| Tel: (514) 321-5660 | Fax: (514) 321-4150
4 Pipe
Cooling only
Heating only
Heating / Cooling
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| www.viconics.com | sales@viconics.com
November 2017