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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 of content (17 pages)

PAGE 1
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.
PAGE 2
Programmable BI/UI inputs overview Binary input #1 can be configured for the following functions: 1. (None): No function will be associated with the input 2. (Rem NSB): remote NSB timer clock input. The scheduling will now be set as per the binary input. It provides low cost setback operation via a dry contact • Contact opened = Occupied • Contact closed = Unoccupied 3. (Motion NO) and (Motion NC): Advanced PIR occupancy functions using a Normally Open (NO) or Normally Closed (NC) remote PIR motion sensor.
PAGE 3
Installation • • • • Remove security screw on the bottom of thermostat cover. Open up by pulling on the bottom side of thermostat. Remove Assembly and remove wiring terminals from sticker. (Fig. 3) Please note the FCC ID and IC label installed in the cover upon removal of cover for the wireless products. A) 12345- Location: Should not be installed on an outside wall. Must be installed away from any heat source. Should not be installed near an air discharge grill.
PAGE 4
Terminal identification Viconics Part Numbers Description / Application VT73xxA5x00(x) 2 & 4 Pipe On/Off VT73xxC5x00(x) 2 & 4 Pipe Floating 2 & 4 Pipe On/Off Internal Temperature Internal Humidity X 1- High Fan Speed 2- Medium Fan Speed 3- Low Fan Speed 4- 24 V~ Hot 5- 24 V~ Com 6- Aux BO 5 7- Aux BO 5 8- BO 3 Open Heat 9- BO 4 Close Heat 10- BO 1 Open Cool 11- BO 2 Close Cool 12- BI #1 13- RS 14- Scom 15- BI #2 16- UI #3 COS / COC /SS Viconics Number Description / Application VT73xxF5x00(x) 2 & 4
PAGE 5
Main outputs wiring 2 Pipe applications 4 Pipe applications On-Off control VT7300A5x00(x) & VT7305AC5x00(x) 24 V~ Hot 24 V~ Com N.C. Heating / Cooling valve 24 Vac Com BO2 24 V~ Hot 24 V~ Com BO3 BO2 24 Vac Com N.O. Heating valve 24 Vac Com N.C. Cooling valve VT7300C5x00(x), VT7305C5x00(x), VT7350C5x00(x) & VT7355C5x00(x) 24 V~ Hot 24 V~ Com Heating / Cooling valve BO1 BO2 if N.O. if N.C. OR 24 Vac Com 24 V~ Hot 24 V~ Com BO3 if N.O. OR BO4 if N.C. BO1 if N.O. BO2 if N.C.
PAGE 6
Typical applications Schematic Wiring Settings 2 pipe system cooling and/or heating: VT7300A5x00(x), VT7300C5x00(x) & VT7305C5x00(x) On / Off N.C. actuator Mandatory 24 Vac fan relays • Pipe no = 2 pipes High Normally Closed On/Off Fan-H • CntrltTyp = On/Off Valve Cooling and/or Heating Fan-M Med • Fan Menu = 0 (L-M-H) • FL time = as per actuator Fan-L 3 Speed fan Low UI3 COS If cooling only set:: • SeqOpera = 0 Cooling only 24 V~ Com 24 V~ Hot Room Temperature Control Thermostat BO2 N.C.
PAGE 7
Schematic Wiring Settings 4 pipe system cooling and heating: VT7300C5x00(x) & VT7305C5x00(x) On / Off N.C.
PAGE 8
Remote sensor accessories Model no. S3010W1000 S3020W1000 S2060A1000 S2000D1000 Description Wall mounted temperature sensor Wall mounted temperature sensor with override button and occupancy status LED Averaging temperature sensor Duct mounted temperature sensor Remote mount temperature sensors use 10K type 2 NTC thermistors. Features: • Each sensor can be configured for various averaging combinations • Optional occupancy led • Optional override key FIG.
PAGE 9
Programming and status display instructions Status display The thermostat features a two-line, eight-character display. There is a low level backlight level that is always active and can only be seen at night. When left unattended, the thermostat has an auto scrolling display that shows the actual status of the system. There is an option in the configuration menu to lockout the scrolling display and to only present the room temperature and conditional outdoor temperature to the user.
PAGE 10
Installer configuration parameter menu Configuration can be done through the network or locally at the thermostat. • To enter configuration, press and hold the middle button (°C/°F or Override) for 8 seconds • Press the same middle button repetitively to scroll between all the available parameters • Use the up and down key to change the parameter to the desired value. • To acknowledge and save the new value, press the middle button again.
PAGE 11
• 11 Mode button menu sequence.
PAGE 12
Get From Thermostat Get From another device configuration utility Default value = 0 Range is: 0 to 254 BI1 Binary input no.1 configuration Default value = None Conditional parameter to Wireless models (VT730xX1000W) This parameter / function is not currently supported by the wireless thermostats. (None): No function will be associated with the input (Rem NSB): remote NSB timer clock input. The scheduling will now be set as per the binary input.
PAGE 13
(None): No function will be associated with the input UI3 Universal input no.3 configuration (COC/NH) Change over dry contact. Normally Heat: Used for hot / cold water or Default value = None air change over switching in 2 pipe systems. Contact closed = Cold water or air present Contact opened = Hot water or air present Only used and valid if system is setup as 2 pipes. Parameter ( Pipe No ) set as 2 pipes. (COC/NC) Change over dry contact.
PAGE 14
CntrlTyp Control type for Triac models Default is: Floating Defines the type of control output for the type of valves installed VT7350C10xx, VT7300C10xx, VT7355C10xx and VT7305C10xx only On/Off is for normally opened or normally closed 24 Vac 2 position valves Floating is for modulating 3 wires control of 24 Vac floating valves SeqOpera Sequence of operation Default is: Sequence #1 0 = Cooling Only 1 = Heating only 2 = Cooling With Reheat 3 = Heating With Reheat 4 = Cooling / Heating 4 pipes 5 = Coolin
PAGE 15
St-By CL Stand-by cooling setpoint limit Default value = 78 °F Unocc HT Unoccupied heating setpoint Default value = 62 °F Unocc CL Unoccupied cooling setpoint limit Default value = 80 °F heat max Maximum heating setpoint limit Default value = 90 °F ( 32 °C ) cool min Minimum cooling setpoint limit Default value = 54 °F ( 12 °C ) Set Type Temporary setpoint enable Default is : Permnent The value of this parameter should reside between the occupied and unoccupied cooling setpoints and make sure that the d
PAGE 16
aux cont Auxiliary contact function & configuration Default value = 0 Not Used 0 Aux contact function used for reheat IF SEQUENCE IS SET TO REHEAT THROUGH NETWORK OR LOCAL, Ignore this parameter The output will directly follow the occupancy of the thermostat 1 Auxiliary NO, Occ or St-By = Contact Closed / Unoccupied = Contact Opened 2 Auxiliary NC, Occ or St-By = Contact Opened / Unoccupied = Contact Closed Output to follow directly main occupancy and Fan on command Typically used for 2 position fresh a
PAGE 17
Specifications Thermostat power requirements: Operating conditions: 19-30 Vac 50 or 60 Hz; 2 VA Class 2 0 °C to 50 °C ( 32 °F to 122 °F ) 0% to 95% R.H. non-condensing Storage conditions: -30 °C to 50 °C ( -22 °F to 122 °F ) 0% to 95% R.H. non-condensing Temperature sensor: Local 10 K NTC thermistor Temperate sensor resolution: ± 0.1 °C ( ± 0.2 °F ) Temperature control accuracy: ± 0.5 ° C ( ± 0.