Viconics VT7600F Installation Guide

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VT7600F Series

RTU Terminal Equipment Controller with

Modulating Heat

Installation Guide

For Commercial HVAC Applications

January 30th, 2012 / 028-377-R2

CONTENTS

Installation 2

Location 2 Installation 2

Theory of Operation 3

Features overview 4

Model Chart 5

Network ready 5

Terminal, Identification and Function 6

Screw terminal arrangement and wiring 6

Typical Applications 7

Main outputs wiring 7 Remote sensor accessories 8

Configuring and Status Display Instructions 9

Status display 9

User interface 11

User configuring instructions menu 11 Local keypad interface 11

Discharge Air Control 27 Specifications 28 Drawing & Dimensions 29

1 | PIR Ready VT7600 Series-Installation Guide

INSTALLATION

Remove the security screw on the bottom of

Terminal Equipment Controller cover.

 Open unit by pulling on the bottom

side of Terminal Equipment Controller (fig. 1).

 Remove wiring terminals from sticker.  Please read the FCC ID and IC label

installed in the cover upon removal of cover for the wireless products.

Location

1. Should not be installed on an outside wall.

2. Must be installed away from any direct heat source.

3. Should not be installed near an air discharge grill.

4. Should not be affected by direct sun radiation.

5. Nothing should restrict vertical air circulation to the Terminal Equipment Controller.

Installation

1. Swing open the Terminal Equipment Controller PCB to the left by pressing the PCB locking tabs (fig. 2).

2. Pull out cables 6” out from the wall.

3. Wall surface must be flat and clean.

4. Insert cable in the central hole of the base.

5. Align the base and mark the location of the two mounting holes on the wall. Install base in the proper orientation. Arrow on base should be facing up.

6. Install anchors in the wall.

7. Insert screws in mounting holes on each side of the base (fig. 2).

8. Gently swing back the circuit board on the base and push on it until the tabs lock it.

9. Strip each wire 1/4 inch from end.

2 | PIR Ready VT7600 Series-Installation Guide

10. Insert each wire according to wiring diagram.

 When replacing an existing Terminal Equipment Controller, label the

wires before removal of the Terminal Equipment Controller.

 Electronic controls are static sensitive devices. Discharge yourself

properly before manipulating and installing the Terminal Equipment Controller.

 A short circuit or improper wiring may permanently damage the Terminal

Equipment Controller or the equipment.

 All VT7000 series Terminal Equipment Controllers are designed for use

as operating controls only and are not safety devices. These instruments have undergone rigorous tests and verification prior to shipping to ensure proper and reliable operation in the field. Whenever a control failure could lead to personal injury and or loss of property, it becomes the responsibility of the user or installer or electrical system designer to incorporate safety devices (such as relays, flow switch, thermal protections, etc…) and or an alarm system to protect the entire system against such catastrophic failures. Tampering with the devices or unintended application of the devices will result in a void of warranty.

11. Gently push excess wiring back into hole (fig. 3).

12. Re-Install wiring terminals in their correct locations (fig. 3).

13. Re-install the cover (top side first) and gently push extra wire length back into the hole in the wall.

14. Install security screw.

THEORY OF OPERATION

The VT76X6F series uses a Viconics proprietary adaptive logic algorithm to control the space temperature. This algorithm controls the heating and or air conditioning system to minimize overshoot while still providing comfort. It provides exceptional accuracy due to its unique PI time proportioning control algorithm, which virtually eliminates temperature offset associated with traditional, differential-based on/off thermostats.

Fig.2 - On/Off mechanical control vs. PI electronic control.

3 | PIR Ready VT7600 Series-Installation Guide

Features overview

 7 day schedule models, 2 or 4 events.  Remote outdoor sensing capability for added flexibility.

- System mode heating and cooling lockout.

 Remote discharge air sensor input for monitoring and control purpose.

- System efficiency feedback.

- Discharge high limit heating lockout.

- Discharge low limit cooling lockout.

- Minimum supply air temperature.

 Remote return air sensor input that replaces internal on board sensor.

 Password protected configuration menu and lockable keypads for security.  Two configurable digital input for added flexibility. The input can be configured as the

following:

 None: No function will be associated with the input.  Service: a backlit flashing Service alarm will be displayed on the Terminal

Equipment Controller LCD screen when the input is energized. It can be tied in to the AC unit control card, which provides an alarm in case of malfunction.

 Filter: a backlit flashing Filter alarm will be displayed on the Terminal

Equipment Controller LCD screen when the input is energized. It can be tied to a differential pressure switch that monitors filters.

 RemNSB: remote NSB timer clock input. Will disable the internal scheduling of

the Terminal Equipment Controller. The scheduling will now be set as per the digital input. The menu part related to scheduling is disabled and no longer accessible. It provides low cost setback operation via occupancy sensor or from a dry contact.

 RemOVR: temporary occupancy contact. Disables all override menu function of

the Terminal Equipment Controller. . The override function is now controlled by a manual remote momentarily closed contact. When configured in this mode, the input operates in a toggle mode.

 With this function enabled it is now possible to toggle between unoccupied &

occupied setpoints for the amount of time set by parameter (TOccTime) temporary occupancy time.

 Automatic smart fan operation saves energy during unoccupied periods.  Non volatile EEPROM memory prevents loss of parameters during power shortage.  Configurable SPST output relay on scheduling models for lighting, exhaust fan or

fresh air control.

 6 hour typical reserve time for clock in case of power loss.

Easy configuration and self-binding operation

 Easy configuration without using any special software or additional tools.  Can be used as stand-alone or with BACnet™ MS-TP supervision controller for

monitoring purposed.

 Truly scalable in terms of supported number of zones and RTU units.

4 | PIR Ready VT7600 Series-Installation Guide

MODEL CHART

Network ready

 All Viconics VT7600 series Terminal Equipment Controllers are designed for

stand-alone (Network Ready) operation.

 They can be fully integrated into your choice of automation systems using the

available communication adapter options.

 If required, stand-alone (Network Ready) Terminal Equipment Controllers can be

field retrofitted with the following communication adapters:

o VCM7600N5000B, Terminal Equipment Controller BACnet™ MS-TP®

communication adapter

o VCM7600N5000W Terminal Equipment Controller wireless Zigbee™

communication adapter

5 | PIR Ready VT7600 Series-Installation Guide

TERMINAL, IDENTIFICATION AND FUNCTION

Terminal Use

Terminal

Identification

Description

1 – Y2 2nd cooling

Second cooling stage output.

2 – Y1 1st cool

First cooling stage output.

3 – G Fan

Fan output.

4 – RC 24VAC hot

Power supply of thermostat, hot side.

5 – C 24VAC com

Power supply of thermostat, common side.

9 – AO analog heat

Analog 0 – 10 VDC heating output.

10 – Auxiliary output

AUX

Auxiliary output used to disable economizer

minimum position or control lighting during

unoccupied periods.

11 – DI 1

DI 1

Configurable extra digital input. See

parameter section for more information.

12 – DI 2

DI 2

Configurable extra digital input. See

parameter section for more information.

13 – RS

Remote temperature sensor input.

14 - Scom

Scom

Reference input for DI 1, RS, OS & DS.

15 - OS

Outside air temperature sensor input.

16 - DS

Discharge air temperature sensor input.

Aux

DI1

DI2

SCom

Y2 C RC

VT76XXF Controller Terminals

Screw terminal arrangement and wiring

6 | PIR Ready VT7600 Series-Installation Guide

TYPICAL APPLICATIONS

Main outputs wiring

Wiring notes: Note 1: If the same power source is used for the heating stages, install jumper across RC &

RH. Maximum current is 2.0 amps.

Note 2: If auxiliary output is used to toggle occupancy of the electronic control card inside

the equipment, configure the relay parameter (Aux cont) to the N.O. setting. A second relay can be added for additional functionality of the occupancy output.

Note 3: The analog outputs and inputs use a half bridge rectifier. Reference of the control

signal is the common of the power supply of the Terminal Equipment Controller. (Terminal C)

Note 4: Electromechanical contacts are to be used with the digital inputs. Electronic triacs

cannot be used as mean of switching for the input. The switched leg to the input for the input to activate is terminal C (common)

Note 5: The transformer of the unit provides power to the t Terminal Equipment Controller

and the additional loads that will be wired to the Terminal Equipment Controller.

7 | PIR Ready VT7600 Series-Installation Guide

Remote sensor accessories

Model no.

Description

S2020E1000

Outdoor temperature sensor

S2060A1000

Averaging temperature sensor

S2000D1000

Duct mounted temperature sensor

ºC

ºF

Kohm

ºC

ºF

Kohm

ºC

ºF

Kohm

ºC

ºF

Kohm

ºC

ºF

Kohm

-40

324.3197

-20

-4

94.5149

0 32

32.1910

12.4601

104

5.3467

-39

-38

303.6427

-19

-2

89.2521

1 34

30.6120

11.9177

106

5.1373

-38

-36

284.4189

-18 0 84.3147

2 36

29.1197

11.4018

108

4.9373

-37

-35

266.5373

-17 1 79.6808

3 37

27.7088

10.9112

109

4.7460

-36

-33

249.8958

-16 3 75.3299

4 39

26.3744

10.4443

111

4.5631

-35

-31

234.4009

-15 5 71.2430

5 41

25.1119

10.0000

113

4.3881

-34

-29

219.9666

-14 7 67.4028

6 43

23.9172

9.5754

115

4.2208

-33

-27

206.5140

-13 9 63.7928

7 45

22.7861

9.1711

117

4.0607

-32

-26

193.9703

-12

60.3980

8 46

21.7151

8.7860

118

3.9074

-31

-24

182.2686

-11

57.2044

9 48

20.7004

8.4190

120

3.7607

-30

-22

171.3474

-10

54.1988

19.7390

8.0694

122

3.6202

-29

-20

161.1499

-9

51.3692

18.8277

7.7360

124

3.4857

-28

-18

151.6239

-8

48.7042

17.9636

7.4182

126

3.3568

-27

-17

142.7211

-7

46.1933

17.1440

7.1150

127

3.2333

-26

-15

134.3971

-6

43.8268

16.3665

6.8259

129

3.1150

-25

-13

126.6109

-5

41.5956

15.6286

6.5499

131

3.0016

-24

-11

119.3244

-4

39.4921

14.9280

6.2866

133

2.8928

-23

-9

112.5028

-3

37.5056

14.2629

6.0351

135

2.7886

-22

-8

106.1135

-2

35.6316

13.6310

100

5.7950

136

2.6886

-21

-6

100.1268

-1

33.8622

13.0307

102

5.5657

138

2.5926

Fig.10 – Remote Duct Mounted Temperature Sensor

Remote mount temperature sensors use 10K NTC thermistor.

Temperature vs. Resistance Chart for 10 Kohm NTC Thermistor

= 10K±3% - B

25°C

= 3975K±1.5%)

25/85°C

S2000D1000; remote duct mounted temperature sensor c/w junction box. This sensor can be used for:

 Remote return air temperature

sensing with the sensor mounted on the return air duct.

 Outside air temperature sensing

with the sensor installed in the fresh air plenum.

 Supply air temperature sensing.

S2060A1000; remote averaging duct mounted temperature sensor c/w junction

box.

This sensor can be used for:  Remote averaging return air temperature sensing with the sensor mounted on

the return air duct.

 Outside air temperature averaging sensing with the sensor installed in the

8 | PIR Ready VT7600 Series-Installation Guide

fresh air plenum.

 Supply air temperature averaging sensor for economizer models with the

WIRING S2000D1000, S2060A1000 and S2020E1000

Remote wiring 1 sensor Remote wiring 4 sensors

CLOCK

STATUS

SYSTEM

MODE

SCHEDULE

STATUS

OUTDOOR

TEMPERATURE

ALARMS

Monday

12:00

Sys mode

auto

Occupied

Outdoor

x.x °C or°F

Service

Sys mode

off

Occupied

hold

Frost ON

Sys mode

heat

Unoccup

SetClock

Sys mode

cool

Filter

Fan lock

DAS Alrm

10 K

Scom

sensor in the mixing plenum. S2020E1000; outdoor air temperature sensor This sensor can be used for:

 Outside air temperature sensing with the sensor installed directly exposed to

the elements.  Sensor uses a water resistant NEMA 4 ABS enclosure for outdoor

applications.

CONFIGURING AND STATUS DISPLAY INSTRUCTIONS

Status display

The Terminal Equipment Controller features a two-line, eight-character display. There is a low level backlight that is always active and can only be seen at night.

When left unattended, the Terminal Equipment Controller has an auto scrolling display that shows the current status of the system.

Each item is scrolled sequentially with the back lighting in low level mode. Pressing any key will cause the back light to come on to high level.

Manual scrolling of each menu item is achieved by pressing the Yes (scroll) key repetitively. The last item viewed will be shown on the display for 30 seconds before returning to automatic scrolling. Temperature is automatically updated when scrolling is held.

Sequence of auto-scroll status display:

9 | PIR Ready VT7600 Series-Installation Guide

Outdoor air temperature

Clock Status

System

Mode

Schedule

Status

Outdoor

Temperature

Alarms

(if detected)

Monday

Sys Mode

Occupied

Outdoor

Service

12:00 AM

Off xx.x °C or °F

DAS Alrm

Sys Mode

Unoccupied

SetClock

Auto Filter

Sys Mode Cool

Override Fan lock

Frost ON

Sys Mode

Heat

Frost ON

Indicates that the heating is energized by the low limit frost protection room temperature setpoint 5.6 °C (42 °F)

SetClock

Indicates that the clock needs to be reset. There has been a power failure which has lasted longer than 6 hours

Service

Indicates that there is a service alarm as per one of the configurable digital input (DI1 or DI2)

Filter

Indicates that the filters are dirty as per one of the configurable digital input (DI1 or DI2)

Fan lock

Indicates that the heating and cooling action are locked out due to a defective fan operation

DAS

Alarm

Indicates that the discharge air temperature is either too low or too high.

 Outdoor air temperature display is only enabled when outdoor air temperature sensor is

connected.

 A maximum range status display of 50 °C (122 °F) indicates a shorted sensor.

Associated functions, such as mode lockouts and economizer function are automatically disabled.

 A minimum range status -40 °C (-40 °F) is not displayed and indicates a opened

sensor or a sensor not connected. Associated functions, such as mode lockouts and economizer function are automatically disabled.

Alarms

 If alarms are detected, they will automatically be displayed at the end of the status

display scroll.

 During an alarm message display, the back lit screen will light up at the same time as

the message and shut off during the rest of the status display.

 Two alarms maximum can appear at any given time.  The priority for the alarms is as follows:

Sequence of manual-scroll status display: Manual scroll of each menu item is achieved by pressing the Yes (scroll) key repetitively. The last item viewed will be shown on the display for 30 seconds before returning to automatic scrolling. Temperature is automatically updated when scrolling is held.

10 | PIR Ready VT7600 Series-Installation Guide

When any of the fan is ON, the FAN LED will illuminate

When heating is ON, the HEAT LED will illuminate

When cooling is ON, the COOL LED will illuminate

Ex.:

Press yes key to change cooling temperature setpoint Use the up or down arrow to adjust cooling setpoint

The YES key is used to confirm a selection, to move onto the next menu item and to manually scroll through the displayed information.

The NO key is used when you do not desire a parameter change, and to advance to the next menu item. Can also be used to toggle between heating and cooling setpoints.

The MENU key is used to access the Main User Menu or exit the menu.

The down arrow key is used to decrease temperature setpoint and to adjust the desired values when configuring the Terminal Equipment Controller.

The up arrow key is used to increase temperature setpoint and to adjust the desired values when configuring the Terminal Equipment Controller.

USER INTERFACE

User configuring instructions menu

The VT76X6FX series of controllers feature an intuitive, menu-driven, back-lit LCD display that walks users and installers through the configuring steps, making the configuring process extremely simple. This menu is typically accessed by the user to set the parameters such as the clock time set, the schedule time events and the system mode.

It is possible to bring up the user menu at any time by depressing the MENU key. The status display automatically resumes after exiting the user-configuring menu.

If the user pauses at any given time during configuring, Auto Help text is displayed to help and guide the user through the usage and configuring of the controller.

Each of the sections in the menu is accessed and configured using 5 keys on the controller cover. The priority for the alarms is as follows:

Local keypad interface

11 | PIR Ready VT7600 Series-Installation Guide

When left unattended for 45 seconds, the display will resume automatic status

Override

Resume

System mode

setting

Schedules

setting

Clock setting

Override schd Y/N

Sys mode set Y/N

Schedule set Y/N

Clock set Y/N

Appears only in unoccupied mode

Cancel ovrd Y/N

Appears only in override mode

Override schd Y/N

Cancel ovrd Y/N

display scrolling. To turn on the back light, press any key on the front panel. The back lit display will

turn off automatically after 45 seconds.

Sequence of user menu:

A) Override an unoccupied period

This menu will appear only when the Terminal Equipment Controller is in unoccupied mode. The unoccupied mode is enabled either by the internal timer scheduling or by a remote NSB contact via DI1 or DI2.

If DI1 or DI2 is configured to operate as a remote temporary override contact, this menu will be disabled.

Answering yes to this prompt will cause the Terminal Equipment Controller to go into occupied mode for an amount of time equal to the parameter “TOccTime” (1 to 12 hours).

B) Resume regular scheduling

This menu does not appear in regular operation. It will appear only when the Terminal Equipment Controller is in Unoccupied override mode.

Answering “Yes” to this question will cause the Terminal Equipment Controller to resume the regular setpoints & scheduling.

12 | PIR Ready VT7600 Series-Installation Guide

C) Temperature setpoints

Temperat set Y/N

COOLING

SETPOINT

OCCUPIED

MODE

HEATING

SETPOINT

OCCUPIED

MODE

COOLING

SETPOINT

UNOCCUPIED

MODE

HEATING

SETPOINT

UNOCCUPIED

MODE

°F OR °C DISPLAY SETTING

Cooling set? Y/N

No next 

Yes down



Heating set? Y/N

No next 

Yes down



Unocc CL set? Y/N

No next 

Yes down



Unocc HT set? Y/N

No next 

Yes down



°F or °C set? Y/N

No next 

Yes down



Use ▲▼ keys to set value, Yes key to confirm

Cooling

70.0 °F

Use ▲▼

To set

value

Heating

68.00 °F

Use ▲▼

To set

value

Unocc CL

80.0 °F

Use ▲▼

To set

value

Unocc HT

60.0 °F

Use ▲▼

To set

value

Units °F

Use ▲▼

To set

value

Sys mode set Y/N

Sys mode

auto

Automatic mode

Automatic changeover mode between heating and cooling operation

Sys mode

cooling

Cooling mode

Cooling operation mode only

Sys mode

heating

Heating mode

Heating operation mode only

Sys mode

emergency

Emergency heat mode ( heat pump models only )

Forced auxiliary heat operation mode only

Sys mode

off

Off mode Normal cooling or heating operation disabled

If enabled in installer parameters, only the automatic heating frost protection at 50 °F ( 10 °C ) is enabled

Permanent setpoint changes

This menu permits the adjustment of all permanent temperature setpoints (occupied and unoccupied) as well as the desired temperature units (°F or °C). Permanent setpoints are written to RAM and EEPROM.

Temporary setpoint changes

Temporary setpoints can be modified through the Up arrow key (▲) and the Down arrow

keys (▼).

User will be prompted with the present mode (Heating or Cooling) of the Terminal Equipment Controller and its setpoint.

The Up (▲) arrow key will increment the setpoint by 0.5 degree (F or C). The Down (▼) arrow key will decrement the setpoint by 0.5 degree (F or C).

Press the Yes key to accept the new setpoint. Local changes to the heating or cooling setpoints made by the user directly using the up

or down arrow are temporary. They will remain effective for the duration specified by ToccTime. Setpoints will revert back to their default value after internal timer ToccTime expires. If a permanent change to the setpoints is required, use the Temperat set ? menu

D) System mode setting

This menu is accessed to set system mode operation

Use ▲▼ to set value, Yes key to confirm

13 | PIR Ready VT7600 Series-Installation Guide

E) Fan mode setting

Fan mode set Y/N

Fan mode

On fan mode

Fan is on continuously, even when system mode is OFF.

Fan mode

Auto

Automatic fan mode

Fan cycles on a call for heating or cooling for both occupied & unoccupied periods.

Fan mode

Smart

Smart fan mode

During occupied periods, fan is on continuously. In unoccupied mode, fan cycles on a call for heating or cooling. This selection is available on all models with a communication module, on all stand-alone (Network Ready) scheduling models or if DI1 or DI2 is set to RemNSB on stand-alone non-scheduling models.

Schedule set Y/N

MONDAY TIMER

SCHEDULE SET

TUESDAY

TIMER

SCHEDULE SET

WEDNESDAY

TIMER

SCHEDULE SET

OTHER DAYS ARE

IDENTICAL

Monday

set? Y/N

No next 

Yes down



Tuesday set? Y/N

No next 

Yes down



Wednesda

set? Y/N

No next 

Yes down



Selects the day to be scheduled or

modified

Yes key to access day scheduling, No key to jump to next day

Occupied Day? Y/N

No next 

Yes down



Occupied Day? Y/N

No next 

Yes down



Occupied Day? Y/N

No next 

Yes down



Yes = Daily schedules will be

accessed

No = Unoccupied mode all day

Yes key to access day scheduling, No key to jump to next day

Copy Y/N

Yes next



No down 

Copy Y/N

Yes next



No down 

Yes = Will copy previous day

schedule

No = Daily schedules will be

accessed

Yes key to copy previous day, No key to set new time value for each day

Occupied 00:00 AM

Use ▲▼

To set

value

Occupied 00:00 AM

Use ▲▼

To set

value

Occupied 00:00 AM

Use ▲▼

To set

value

Sets Event # 1 Occupied time

Will activate occupied setpoints

Use ▲▼ to set value, Yes key to confirm

Unoccup

00:00 AM

Use ▲▼

To set

value

Unoccup

00:00 AM

Use ▲▼

To set

value

Unoccup

00:00 AM

Use ▲▼

To set

value

Sets Event # 2 Unoccupied time

Will activate unoccupied setpoints

Use ▲▼ to set value, Yes key to confirm

This section of the menu is permits the setting of the fan mode operation. Use ▲▼ to set value, Yes key to confirm

F) Schedule set (2 events) Scheduling can have 2 or 4 events per day. This is set in the configuration menu as per parameter (2/4event)

This section of the menu permits the user to set the whether 2 or 4 events is needed. Each day can be tailored to specific schedules if needed.

 2 events can be scheduled per day.  Occupied & unoccupied periods can be set for each day.

14 | PIR Ready VT7600 Series-Installation Guide

Typical examples of a 2 event office schedule:

Event

Period #1 - Event #1

Period #1 - Event #2

Occupied

Unoccupied

Setpoint

Cool

Heat

Cool

Heat Daily

72 °F

70 °F

80 °F

62 °F

Occupancy

Monday

7.00 AM

6.00 PM

Day time only

Tuesday

7.00 AM

6.00 PM

Day time only

Wednesday

7.00 AM

6.00 PM

Day time only

Thursday

7.00 AM

6.00 PM

Day time only

Friday

7.00 AM

6.00 PM

Day time only

Saturday

12.00 PM *

Unoccupied

Sunday

12.00 PM *

Unoccupied

Event

Period #1 - Event

Occupied

Unoccupied

Setpoint

Cool

Heat

Cool

Heat Daily

72 °F

70 °F

80 °F

62 °F

Occupancy

Monday

8.00 AM

5.00 PM

Day time only

Tuesday

8.00 AM

5.00 PM

Day time only

Wednesday

8.00 AM

5.00 PM

Day time only

Thursday

8.00 AM

5.00 PM

Day time only

Friday

8.00 AM

5.00 PM

Day time only

Saturday

12.00 AM **

11.59 PM **

Occupied

Sunday

12.00 AM **

11.59 PM **

Occupied

Note: 12:00 PM = Noon

Ex. #1 Office building closed all weekend

* Scheduling consecutive events to the same time will cause the Terminal Equipment

Controller to choose the last event as the time at which it will set its schedule. In the above example, the Terminal Equipment Controller will control to the unoccupied set point until 7:00 AM Monday.

Ex. #2 Commercial building which is occupied all weekend

** To schedule a day as occupied for 24 hours, set that day occupied time to 12:00 AM

and Unoccupied time to 11:59 PM There will be a 1 minute unoccupied period every night at 11:59 PM with this schedule configuration.

15 | PIR Ready VT7600 Series-Installation Guide

G) Schedule set (4 events)

Schedule set Y/N

Monday timer

Schedule set

Tuesday timer

Schedule set

Wednesday timer

Schedule set

Other days are identical

Monday

set? Y/N

No next 

Yes down



Tuesday

set? Y/N

No next 

Yes down 

Wednesda

set? Y/N

No next 

Yes down 

Selects the day to be scheduled or

modified

Yes key to access day scheduling, No key to jump to next day

Occupied

Day? Y/N

No next 

Yes down



Occupied Day? Y/N

No next 

Yes down 

Occupied Day? Y/N

No next 

Yes down



Yes = Daily schedules will be

accessed

No = Unoccupied mode all day

Yes key to access day scheduling, No key to jump to next day

Copy Y/N

Yes next 

No down 

Copy Y/N

Yes next



No down 

Yes = Will copy previous day

schedule

No = Daily schedules will be

accessed

Yes key to copy previous day, No key to set new time value for each day

Occupied

00:00 AM

Use ▲▼

To set

value

Occupied 00:00 AM

Use ▲▼

To set

value

Occupied 00:00 AM

Use ▲▼

To set

value

Sets Event # 1 Occupied time

Will activate occupied setpoints

Use ▲▼ to set value, Yes key to confirm

Unoccup

00:00 AM

Use ▲▼

To set

value

Unoccup

00:00 AM

Use ▲▼

To set

value

Unoccup

00:00 AM

Use ▲▼

To set

value

Sets Event # 2 Unoccupied time

Will activate unoccupied

setpoints

Use ▲▼ to set value, Yes key to confirm

Occupie2

00:00 AM

Use ▲▼

To set

value

Occupie2 00:00 AM

Use ▲▼

To set

value

Occupie2 00:00 AM

Use ▲▼

To set

value

Sets Event # 3 Occupied time

Will activate occupied setpoints

Use ▲▼ to set value, Yes key to confirm

Unoccup2 00:00 AM

Use ▲▼

To set

value

Unoccup2

00:00 AM

Use ▲▼

To set

value

Unoccup2

00:00 AM

Use ▲▼

To set

value

Sets Event # 4 Unoccupied time

Will activate unoccupied

setpoints

Use ▲▼ to set value, Yes key to confirm

This section of the menu permits the user to set the whether 2 or 4 events is needed. Each day can be tailored to specific schedules if needed.

 4 events can be scheduled per day.  Occupied & Unoccupied periods can be set for each day.  Scheduling the 3rd. & 4th. Events to the same time will cancel the last period.

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Ex. #1 Four event retail establishment schedule

Event

Period 1 -

Event 1

Period 1 -

Event 2

Period 2 -

Event 3

Period 2 -

Event 4

Setpoint

Occupied

Unoccupied

Occupied

Unoccupied

Cool

Heat

Cool

Heat

Cool

Heat

Cool

Heat

Daily

72°F

70°F

80°F

62°F

72°F

70 °F

80°F

62 °F

Occupancy

Monday

7.00 AM

5.00 PM

12.00 PM *

Day time only

Tuesday

7.00 AM

5.00 PM

12.00 PM *

Day time only

Wednesday

7.00 AM

5.00 PM

12.00 PM *

Day time only

Thursday

7.00 AM

5.00 PM

7.00 PM

10.30 PM

Day/evening

time only

Friday

7.00 AM

5.00 PM

7.00 PM

10.30 PM

Day/evening

time only

Saturday

12.00 PM *

Unoccupied

Sunday

12.00 PM *

Unoccupied

Event

Period 1 -

Event 1

Period 1 -

Event 2

Period 2 -

Event 3

Period 2 -

Event 4

Setpoint

Occupied

Unoccupied

Occupied

Unoccupied

Cool

Heat

Cool

Heat

Cool

Heat

Cool

Heat

Daily

72°F

70°F

80°F

62°F

72°F

70°F

80°F

62°F

Occupancy

Monday

6:00 AM

8:00 AM

4:00 PM

10:00 PM

Day/evening

time only

Tuesday

6:00 AM

8:00 AM

4:00 PM

10:00 PM

Day/evening

time only

Wednesday

6:00 AM

8:00 AM

4:00 PM

10:00 PM

Day/evening

time only

Thursday

6:00 AM

8:00 AM

4:00 PM

10:00 PM

Day/evening

time only

Friday

6:00 AM

8:00 AM

4:00 PM

11:30 PM

Day/evening

time only

Saturday

8:00 AM *

11:59 PM *

Day time

only

Sunday

12:00 AM *

11:59 PM *

Occupied all

day

* Scheduling events to the same time will cancel the last period and leave the Terminal Equipment Controller in unoccupied mode

Ex. #2 Residential

* Scheduling consecutive events to the same time will cause the Terminal Equipment

Controller to choose the last event as the time at which it will set its schedule. In the above example for Saturday, the Terminal Equipment Controller will control to the occupied set point from 8:00 AM until 11:59 PM. Since it is desired to be in occupied mode throughout the night, then it is necessary to schedule the first event on Sunday at 12:00 AM. The Terminal Equipment Controller will force a one minute unoccupied period for a one minute period (between 11:59 PM and 12:00 AM on Saturday).

17 | PIR Ready VT7600 Series-Installation Guide

H) Clock/Day Settings

Clock set Y/N

Time setting

Day setting

Time format setting

Time

set? Y/N

No next 

Yes down 

Day

set? Y/N

No next 

Yes down 

12/24hrs

set? Y/N

No = exit

Yes down 

Time

0:00

Use ▲▼

To set value

Day

Monday

Use ▲▼

To set value

12/24hrs

12 hrs

Use ▲▼

To set value

Schedule hold Y/N

This section of the menu permits the user to set the time and day.

J) Schedule hold

 This menu will only appear on stand-alone (Network Ready) Terminal

Equipment Controller, i.e. without a BACnet™ / Echelon™ module.

 This section of the menu permits the user to set a permanent schedule

hold, which bypasses the internal Terminal Equipment Controller scheduling.

 The permanent schedule hold function is typically used for non-

scheduled events that extend for various periods of time.

 Enabling a permanent occupied or permanent unoccupied schedule hold

will cancel any active override.

 The use of temporary setpoints during permanent hold is permitted. The

duration of the temporary setpoint is as set per the TOccTime parameter. Ex. 3 hours

Use ▲▼ to set value, yes key to confirm

18 | PIR Ready VT7600 Series-Installation Guide

CONFIGURATION

PARAMETERS

DEFAULT VALUE

SIGNIFICANCE AND ADJUSTMENTS

PswrdSet

Configuration parameters menu access password Default value = 0 No password prompted

This parameter sets a password access to prevent unauthorized access to the configuration menu

parameters. A default value of “0” will not prompt a

password or lock the access to the configuration menu. Range is: 0 to 1000

Com addr Thermostat networking address

Default value = 254 Range is: 0 to 254

Conditional parameter to BACnet MS-TP models (VT76xxX5x00B)

Conditional parameter to Wireless models (VT76xxX5x00W)

This parameter will only appear when a BACnet or wireless network adapter is present. If the thermostat is installed as a stand-alone unit or with an Echelon adapter, this parameter will not be used or displayed

- For BACnet MS-TP models valid range to use is from 1 to 127. Default value of 254 disables BACnet communication for the thermostat.

- For wireless models valid range is 0 to 254 with a maximum of 30 thermostat per VWG

PAN ID

Personal Area Network Identification Default value = 0 Range is: 0 to 1000

Conditional parameter to Wireless models (VT76xxX5x00W)

This parameter will only appear when a wireless network adapter is present. If the Terminal Equipment Controller is installed as a stand-alone (Network

Ready) unit or with a BACnet™ or Echelon™ adapter,

this parameter will not be used or displayed This parameter (Personal Area Network Identification)

is used to link specific Terminal Equipment Controllers to a single specific Viconics wireless gateway ( VWG ) For every Terminal Equipment Controller reporting to a gateway ( maximum of 30 Terminal Equipment Controllers per gateway ), be sure you set the SAME PAN ID value both at the gateway and the Terminal Equipment Controller(s).

The default value of 0 is NOT a valid PAN ID.

19 | PIR Ready VT7600 Series-Installation Guide

Channel

Channel selection Default value = 10 Range is: 10 to 26

Conditional parameter to Wireless models (VT76xxX5x00W)

This parameter will only appear when a wireless network adapter is present. If the Terminal Equipment Controller is installed as a stand-alone (Network

Ready) unit or with a BACnet™ or Echelon™ adapter,

this parameter will not be used or displayed This parameter (Channel) is used to link specific

Terminal Equipment Controllers to specific Viconics wireless gateway(s) (VWG) For every Terminal Equipment Controller reporting to a gateway (maximum of 30 Terminal Equipment Controllers per gateway), be sure you set the SAME channel value both at the gateway and the Terminal Equipment Controller(s).

Viconics recommends using only the usage of channels 15 and 25 only.

The default value of 10 is NOT a valid channel. The valid range of available channel is from 11 to 26

20 | PIR Ready VT7600 Series-Installation Guide

DI 1

Digital input no.1 configuration Open contact input = function

not energized Closed contact input = function

energized Default value = None

None, No function will be associated with the input Rem NSB, remote NSB timer clock input. Will disable the

internal scheduling of the thermostat. The scheduling will now be set as per the digital input. The time is still displayed as information, but the menu part related to scheduling is disabled and no longer accessible.

Open contact = occupied setpoints Closed contacts = unoccupied setpoints RemOVR Temporary override remote contact. Disables

all override menu function of the thermostat. The override function is now controlled by a manual remote momentarily closed contact. When configured in this mode, the input operates in a toggle mode. With this function enabled it is now possible to toggle between unoccupied & occupied setpoints for the amount of time set by parameter (TOccTime) temporary occupancy time. When Override is enabled, an Override status message will be displayed

Filter, a back-lit flashing Filter alarm will be displayed

on the thermostat LCD screen when the input is energized

Service, a back-lit flashing Service alarm will be displayed on the thermostat LCD screen when the input is energized

Fan lock, a back-lit flashing Fan lock alarm will be

displayed on the thermostat LCD screen when the input is not energized. Used in conjunction with a local airflow sensor connected to the input. Locks out the thermostat heating and cooling action if no airflow is detected 10 seconds after the fan ( G terminal ) is energized.

Open contact = no airflow Closed contacts = airflow present

DI 2

Digital input no.2 configuration Open contact input = function

not energized Closed contact input = function

energized Default value = None

Same as above. It is possible to configure both inputs to have the same function.

MenuScro

Menu scroll Default value = On = Scroll

active

Removes the scrolling display and only present the room temperature/humidity to the user. With this option enabled, no status is given of mode, schedule and outdoor temperature.

On = Scroll active Off = Scroll not active

21 | PIR Ready VT7600 Series-Installation Guide

Lockout Keypad lockout levels Default value = 0 No lock

0 = No lock 1 = Low level 2 = High level

USER KEY FUNCTIONS

LEVEL

Resume/

Override scheduling

Permanent Occupied and

Unoccupied Setpoints

Temporary setpoints using

arrows

System mode setting

Fan mode setting

Schedules setting

Clock setting Permanent hold

pwr del Power-up delay Default value = 10 seconds

On initial power up of the Terminal Equipment Controller (each time 24 VAC power supply is removed & re-applied) there is a delay before any operation is authorized (fan, cooling or heating). This can be used to sequence start up multiple units / Terminal Equipment Controller in one location.

10 to 120 seconds

Frost pr

Frost protection enabled Default value = Off

Off: no room frost protection On: room frost protection enabled in all system mode at:

42 °F ( 5.6 °C ) Frost protection is enabled even in system Off mode

Off or On

On heat pump models the system mode will be forced to EMERGENCY mode if frost protection is activated

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 ( 2 °C )

Minimum occupied & unoccupied cooling setpoint adjustment. Cooling setpoint range is: 54 to 100 °F ( 12.0 to 37.5 °C )

22 | PIR Ready VT7600 Series-Installation Guide

Pband

Proportional Band setting Default value 2 = 2.0 °F ( 0.6 °C )

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

Note that the default value of 2.0 °F ( 1.1 °C ) gives satisfactory operation in most normal

installation cases. The use of a superior 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

2 F

1.1 C

3 F

1.7 C 4 4 F

2.2 C

5 F

2.8 C

6 F

3.3 C 7 7 F

3.9 C

8 F

4.4 C

Anticycle Minimum on/off operation time for stages Default value = 2 minutes

Minimum On/Off operation time of cooling & heating stages.

IMPORTANT, anti-short cycling can be set to 0 minutes for equipment that posses their own anti cycling timer. Do not use this value unless the equipment is equipped with such internal timer. Failure to do so can damage the equipment.

0, 1, 2, 3, 4 & 5 minutes

Anti-short cycling can be set to 0 minutes for equipment that posses their own anti cycling timer. Do not use that value unless the equipment is equipped with such internal timer. Failure to do so can damage the equipment.

Min SH

Minimum supply heat temperature setpoint

Default value = 64 °F (18 °C)

Sets the minimum supply heat to be maintained by the controller during occupied periods (Occupied or Temporary Override).

From 50 °F up to 72 °F (10 °C up to 22 °C)

(increments: 0.5° or 5°)

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cool cph

Cooling stages cycles per hour Default value = 4 C.P.H.

Will set the maximum number of cooling stage cycles per hour under normal control operation. It represents the maximum number of cycles that the equipment will turned on and off in one hour. Note that a higher C.P.H will represent a higher accuracy of control at the expense of wearing mechanical components faster.

3 or 4 C.P.H.

For multi stage models, cool cph applies to Y1 & Y2

For heat pump models, cool cph applies to Y1 & Y2 in cooling and heating independently of the reversing valve position

deadband

Minimum deadband Default value = 2.0 °F (1.1 °C)

Minimum deadband value between the heating and cooling setpoints. If modified, it will be applied only when any of the setpoints are modified.

2, 3 or 4 °F ( 1.0 to 2.0 °C )

fan cont

Fan control Default value = On

Fan control in heating mode. When selecting On; the Terminal Equipment Controller in all cases will always control the fan (terminal G). Valid for On or Auto fan mode When selecting Off; the fan (terminal G), when heating stages (terminals W1 & W2) are solicited, will not be energized. The fan in this case will be controlled by the equipment fan limit control. Valid only for Auto fan mode. On fan mode will leave the fan always on.

ON OR OFF

For multi stage models, fan control applies to W1 & W2

For heat pump models, fan control applies to W1 only (Emergency heat)

fan del

Fan delay Default value = Off

Fan delay extends fan operation by 60 seconds after the call for heating or cooling ends.

Valid only for Auto fan mode. “On” fan mode will leave

the fan always on.

Off or On

ToccTime

Temporary occupancy time Default value = 3 hours

Temporary occupancy time with occupied mode setpoints when override function is enabled When the Terminal Equipment Controller is in unoccupied mode, function is enabled with either the menu or DI1 or DI2 configured as remote override input.

0,1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 & 12 hours

Cal RS

Room air temperature sensor calibration Default value = 0.0 °F or °C

Offset that can be added/subtracted to actual displayed room temperature

± 5.0 °F ( ± 2.5 °C )

24 | PIR Ready VT7600 Series-Installation Guide

Cal OS

Outside air temperature sensor calibration Default value = 0.0 °F or °C

Offset that can be added/subtracted to actual displayed outside air temperature

± 5.0 °F ( ± 2.5 °C )

SH lock

Outside air temperature supply heat lockout

Default value = 32 °F (0 °C)

Disables heating operation based on outdoor air temperature.

Please refer to the Viconics Zoning System Guide for recommended settings.

From –15 °F up to 120 °F (-26 °C up to 49 °C)

(increments: 5° or 50°)

C stage

Number of cooling stages Default value = 2 stages

Will revert the operation of 2 stage Terminal Equipment Controller to single stage operation only when the second cooling step is not needed.

1 or 2 stages

H lock

Outside air temperature heating lockout Default value = 120 °F ( 49 °C )

Disables heating stage operation based on outdoor air temperature. Function will only be enabled if OS (outside air temperature sensor) is connected.

From -15 °F up to 120 °F ( -26 °C up to 49 °C )

C lock

Outside air temperature mechanical cooling lockout. Default value = -40 °F ( -40 °C )

Disables cooling stage operation based on outdoor air temperature. On economizer model, free cooling will not be disabled by this function. Function will only be enabled if OS (outside air temperature sensor) is connected.

From -40 °F up to 95 °F ( -40 °C up to 35 °C )

Unocc TM

Unoccupied Timer value Default 0.5 hours

Time delay between the moment where the Terminal Equipment Controller toggles from occupied to unoccupied after the last movement has been detected by the PIR.

Range is: 0.5 to 24.0 hours in 0.5 hour increments

2/4event

Number of events configuration Default value = 2 event

2 events, will set up scheduling for the following Event 1 is for Occupied setpoints Event 2 is for Unoccupied setpoints 4 events, will set up scheduling for the following Event 1 is for Occupied setpoints Event 2 is for Unoccupied setpoints Event 3 is for Occupied setpoints Event 4 is for Unoccupied setpoints

25 | PIR Ready VT7600 Series-Installation Guide

aux cont

Auxiliary contact configuration Default value = N.O. normally open

This contact can be used to energize peripheral devices such as: lighting equipment, exhaust fans, economizers, etc. This contact will operate in parallel with the internal occupied/unoccupied schedule of the Terminal Equipment Controller or the remote NSB contact if DI1 or DI2 is used. When the system is in OFF mode, the contact will remain in its unoccupied status independently of the occupied / unoccupied schedule.

Configured

Contact

occupied

status

Contact

unoccupied

status

N.O.

Closed

Opened

N.C.

opened

Closed

Prog rec

Progressive recovery enabled Default value = Off Progressive recovery is automatically disabled if DI 1 and / or DI 2 are configured remote NSB

Off, = no progressive recovery The occupied schedule time is the time at which the system will restart.

On, = progressive recovery active. The occupied schedule time is the time at which the desired occupied temperature will be attained. The Terminal Equipment Controller will automatically optimize the equipment start time.

In any case, the latest a system will restart is 10 minutes prior to the occupied period time.

Dis HL

Discharge air temperature high limit

Default: 120°F

Discharge air high temperature value at which the heating output will be locked out.

70°F to 150°F (21°C to 65°C)

(increments: 0.5° or 5°)

Dis LL

Discharge air temperature low limit

Default: 45°F

Discharge air low temperature value at which the cooling stages will be locked out.

35°F to 65°F (2.0°C to 19.0°C)

(increments: 0.5° or 5°)

MS dis

Display mixed air temperature Economizer model only, only if sensor is installed

Used as diagnostic / service help to troubleshoot and diagnose economizer operation.

26 | PIR Ready VT7600 Series-Installation Guide

DISCHARGE AIR CONTROL

The Viconics VT7600F controller has the ability to maintain a minimum heating supply temperature by using an analog 0-10VDC proportional output instead of using the staging outputs which will cause the unit to cycle. Using a full proportional output to maintain the minimum heating supply temperature can increase cost savings and less wear and tear on HVAC equipment.

The desired minimum setpoint temperature value can be set under the Min SH parameter and the following conditions must apply:

- The system mode is heating.

- The occupancy mode is in Occupied or Temporary Override.

- The OA temperature value is below SH lockout parameter value.

27 | PIR Ready VT7600 Series-Installation Guide

SPECIFICATIONS

Terminal Equipment Controller power requirements:

Operating conditions: Storage conditions: Sensor:

Resolution: Temperature control accuracy:

Contact output rating Occ, Stand-By and Unocc cooling setpoint range:

Occ, Stand-By and Unocc heating setpoint range: Room and outdoor air temperature display range: Digital inputs: Analog outputs rating (BPD & AO) Analog outputs accuracy (BPD & AO) Wire gauge: Approximate shipping weight: Agency Approvals all models:

Agency Approvals all models:

Agency Approvals Wireless models:

19-30 VAC 50 or 60 Hz; 2 VA Class 2 RC to RH jumper 2.0 Amps 48VA max. 0 °C to 50 °C ( 32 °F to 122 °F ) 0% to 95% R.H. non-condensing

-30 °C to 50 °C ( -22 °F to 122 °F ) 0% to 95% R.H. non-condensing Local 10 K NTC thermistor ± 0.1 °C ( ± 0.2 °F ) ± 0.5 ° C ( ± 0.9 °F ) @ 21 °C ( 70 °F ) typical calibrated Relay outputs: 30 VAC, 1 Amp. Maximum, 3 Amp. In-rush.

12.0 to 37.5 °C ( 54 to 100 °F )

4.5 °C to 32 °C ( 40 °F to 90 °F )

-40 °C to 50 °C ( -40 °F to 122 °F ) Dry contact across terminal DI1 0 to 10 VDC into 2K resistance min ± 3% typical 18 gauge maximum, 22 gauge

0.75 lb ( 0.34 kg ) UL: UL 873 (US) and CSA C22.2 No. 24 (Canada), File E27734 with CCN XAPX (US) and XAPX7 (Canada)

Industry Canada: ICES-003 (Canada) FCC: Compliant to CFR 47, Part 15,

Subpart B, Class A (US) CE : EMC Directive 2004/108/EC (Europe Union) C-Tick: AS/NZS CISPR 22 Compliant (Australia / New Zealand) Supplier Code Number N10696 FCC: Compliant to: Part 15, Subpart B, Class (US)

THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION

Please check with your local government for instruction on disposal of this product

28 | PIR Ready VT7600 Series-Installation Guide

DRAWING & DIMENSIONS

Viconics Technologies Inc.

Tel.: Fax: Toll free:

www.viconics.com

29 | PIR Ready VT7600 Series-Installation Guide

Viconics VT7600F Installation Guide

Specifications and Main Features

Frequently Asked Questions

User Manual