Viconics VT7300A5000 - User Manual

PIR Ready VT7300 Series
24 Vac Low Voltage Fan Coil Thermostats
For Commercial and Lodging HVAC Applications
(Issue Date: June 16, 2008 – 028-0183_R3)
Product overview
The VT7300 PI thermostat family is specifically designed for fan coil control. The product
features a backlit LCD display with dedicated function menu buttons for simple operation.
Accurate temperature control is achieved due to the product’s PI proportional control
algorithm, which virtually eliminates temperature offset associated with traditional,
differential-based thermostats.
Models are available for On/Off, 3 point floating and analog 0 to 10 Vdc control and can
control up to three fan speed. Three additional inputs are also provided for monitoring and /
or various advanced functions.
All models feature configurable System and Fan button functions to meet all possible applications. They all contain
an SPST auxiliary switch that can be used to control lighting or auxiliary reheat.
The thermostats are also compatible with the new Viconics PIR cover accessories. Thermostats equipped with a
PIR cover provide advanced active occupancy logic, which will automatically switch occupancy levels from
Occupied to Stand-By and Unoccupied as required by local activity being present or not. This advanced
occupancy functionality provides advantageous energy savings during occupied hours without sacrificing occupant
comfort. All thermostats can be ordered with or without a factory installed PIR cover ( see ordering notes below ).
The additional following documents are available at:
www.viconics.com
• PIR application information and examples, are available on document: APP-PIR-Guide-Exx
• PIR cover installation information is available on document: PIR Cover Installation-Exx
• Information on the LON models (VT73xxX5000E), is available on document ITG-VT7300-PIR-LON-Exx
• Information on the BACnet models (VT73xxX5000B), is available on document ITG-VT7300-PIR-BAC-Exx
• Information on the Wireless models (VT73xxX5000W), is available on documents: ITG-VWG-40-BAC-Exx and LIT-VWG-40-SETUP-Exx
Models available
Viconics
Part
Numbers
VT7300A5000(X) VT7300C5000(X) VT7350C5000(X) VT7305A5000(X) VT7305C5000(X) VT7355C5000(X)
VT7300F5000(X) VT7350F5000(X) VT7305F5000(X) VT7355F5000(X)
Application
2 & 4
Pipes
On/Off
2 & 4 Pipes
Floating & On/Off
2 & 4
Pipes
On/Off
2 & 4 Pipes
Floating & On/Off
2 & 4 Pipes
Analog 0-10 Vdc
RH sensor
No No Yes No No Yes No Yes No Yes
Market Commercial / Institution Hotels / Lodging
Commercial /
Institution
Hotels / Lodging
Ordering Information Notes:
- (X) model number represents available communication options: X=none for Stand-alone, X=B for BACnet MS-TP, X=E for Echelon and X=W for Wireless
- Thermostats can be ordered with a factory installed PIR cover. Please use (5500) extension instead of the (5000) only extension.: Ex. VT7300C5500E.
- Thermostats ordered without a PIR cover can be retrofitted with a separate PIR accessory cover afterwards when required
Features and benefits
Features Benefits
• Models available with internal humidity sensing ⇒ Increased occupant comfort through dehumidification
• Advanced occupancy functions ⇒ Through the network or smart local occupancy sensing
• Ready for PIR accessory cover
⇒ Fully integrated advanced occupancy functionality with a
PIR accessory cover
• 3 configurable inputs ⇒ Adds functionality
• Configurable sequences of operation ⇒ Single model meets more applications
• Configurable fan functions button ⇒ Meets more applications with a single model
• Unique configuration setup utility ⇒ Minimizes parameter tampering
• Multi level lockable keypad ⇒ Tamper proof, no need for thermostat guards
• Auto Fan speed mode
⇒ Increased occupant comfort in cooling mode by reducing
humidity and offer less fan noise in all mode of operation
• Available for 24 Vac On/Off, Floating or Analog control ⇒ Meet advanced applications requirements
• Auxiliary output ⇒ Can be used for lighting or reheat
028-0183 R3_LIT-VT7300-PIR-E03.doc
www.viconics.com / sales@viconics.com

Summary

Programmable Input;Output Overview

Binary Input 1 & 2 Configuration

Details the configurable functions for Binary Inputs 1 and 2, including sensors and alarms.

Universal Input 3 Configuration

Details the configurable functions for Universal Input 3, like changeover and supply air sensors.

Installation Guide

Location and Physical Installation

Provides guidelines for selecting an optimal location and details the physical mounting steps.

Important Installation Notes

Highlights critical points like static sensitivity, wiring precautions, and equipment damage warnings.

Terminal Identification and Wiring

Terminal Identification Chart

Maps Viconics part numbers to terminal descriptions and applications for various models.

Wiring Diagrams

Illustrates wiring connections for power, fan, remote inputs, and auxiliary outputs.

Main Output Wiring Configurations

Output Wiring by System and Control Type

Details main output wiring for 2-pipe and 4-pipe systems with On-Off, Floating, and Analog controls.

Remote Sensor Accessories and Wiring

Remote Sensor Wiring Examples

Installer Configuration Menu

Configuration Interface and User Operations

Setpoint Adjustments

Configuration Parameters Details

Network and Identification Parameters

Input Configuration Details

Binary Input 1 & 2 Functionality

Lists and explains the functions for Binary Inputs 1 and 2.

Additional Configuration Settings

Universal Input 3 Functionality

Explains functions for UI3: Change over, Supply air sensor.

System Type Installation

Advanced Configuration Parameters

Control, Sequence, and Fan Settings

Dehumidification Settings

Stand-by and Unoccupied Timers

Setpoint and Calibration Settings

Setpoint Limits and Temporary Settings

Sensor Calibration

Product Specifications and Approvals

Technical Specifications

Details electrical, environmental, sensor, and physical specifications of the thermostat.

Agency Approvals and Certifications

Important Safety Notice

Warns that thermostats are operating controls, not safety devices, and misuse voids warranty.

Viconics VT7300A5000 Specifications

General

Type	Programmable Thermostat
Display Type	LCD
Communication Protocol	BACnet MS/TP
Mounting Type	Wall Mount
Backup Battery	Yes
Voltage	24VAC
Application	Commercial