Vykon VT7600 Series User Manual

PIR Ready VT7600 Series

Programmable & Non-Programmable Thermostats

For Commercial HVAC Applications

September 1, 2010

Product overview

The VT7600 PI thermostat family is specifically designed for single stage and multi-stage control of heating/cooling equipment such as rooftop and self-contained units. The product features an intuitive, menu-driven, back-lit LCD display, which walks users through the programming steps, making the process extremely simple. Accurate temperature control is achieved due to the product’s PI time proportional control algorithm, which virtually eliminates temperature offset associated with traditional, differential-based thermostats.

All models contain two digital inputs, which can be set by the user to monitor filter status, activate a remote temporary occupancy switch, and/or used as a general purpose service indicator. In addition, depending on the model, up to three remote sensor inputs are available. All models contain a SPST auxiliary switch, which can be used to control lighting or disable the economizer function and a discharge air sensor input. For more advanced applications, economizer control logic has been integrated onto the thermostat for use with proportional damper economizer actuators.

The thermostats are also compatible with the new Vykon PIR cover accessories. Thermostats equipped with a PIR cover provide advanced active occupancy logic, which will automatically switch occupancy levels from Occupied to 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 documentation is available:

- VYKONStat PIR Application Guide

- VYKONStat PIR Cover Assembly Installation Guide

- VYKONStat PIR Ready VT76xx Series Thermostat BACnet Integration Guide

- VYKONStat PIR Ready VT7600 LonWorks Integration Guide

- VYKONStat Wireless Controller Application Guide

Models available

Application 1 Heat / 1 Cool 2 Heat / 2 Cool

2 Heat / 2 Cool

with economizer

3 Heat / 2 Cool

heat pump

Model (programmable) VT7652A5x28(X) VT7652B5x28(X) VT7656B5x28(X) VT7652H5x28(X)

Model (non-programmable) VT7600A5x28(X) VT7600B5x28(X) VT7605B5x28(X) VT7600H5x28(X)

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 (5528) extension instead of the (5028) only extension.: Ex. VT7600B5528E.

- Thermostats ordered without a PIR cover can be retrofitted with a separate PIR accessory cover afterwards when required

Features and benefits

Features Benefits

• 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

• Ready for PIR accessory cover ⇒ Fully integrated advanced occupancy functionality with

a PIR accessory cover

• 2 digital inputs ⇒ Adds functionalit

• Smart fan operation ⇒ Saves energy during night mode

• Unique configuration key with password protection ⇒ Minimizes parameter tampering

• Lockable keypad ⇒ Tamper proof, no need for thermostat guards

• 6 hour reserve time for clock ⇒ No need to reprogram day/time after power shortage

• Remote room and outdoor temperature senso

• Auxiliary output ⇒ Can be used for lighting and/or economizer override

• Discharge air sensor ⇒ Can be used to monitor unit efficiency

• Intuitive, menu-driven programming (7 day, 2/4 events -

on programmable models only)

• Economizer output 0-10 Vdc economizer models onl

⇒ Increase flexibility and functionality

⇒ Can be used for all types of establishments

⇒ Excellent retrofit opportunities

• 3 Heat/2 Cool (on heat pump models only) ⇒ Support single and two stages heat pump with one

auxiliary heat stage

Theory of operation

The VT7600 uses a Vykon proprietary adaptive logic algorithm to control the space temperature. This algorithm controls the heating / 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.

Features overview

• 7 day programmable models, 2 or 4 events

• Gas/oil or electric system compatibility for all type

of applications

• Remote indoor averaging sensing capability

• Temperature averaging with 2, 3, 4, 9 or 16

sensors

• Remote outdoor sensing capability for added

flexibility

- System mode lock out

- Heat pump balance point settings

• Remote discharge air sensor input for monitoring

purpose

- System efficiency feedback

• Lockable keypads for tamper proofing. No need for

thermostat guards

• Automatic frost protection to prevents costly freeze

damage

• Anti short cycle and minimum on/off run time

protection. Reduces wear and maximizes life span

of mechanical equipment.

• 2 programmable digital inputs for added flexibility.

Each input can be programmed as the following:

- None: No function will be associated with the

input

- Service: a backlit flashing Serv

ice alarm will be

displayed on the thermostat 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 thermostat LCD screen when the input is energized. It can be tied to a

differential pressure switch that monitor filters

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 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 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.

- Fan lock: used in conjunction with a local air flow

sensor connected to the input. Locks out the thermostat heating and cooling action and displays a local alarm if no air flow is detected 10 seconds after the fan ( G terminal ) is energized.

• Programmable smart fan operation saves

energy during night mode

• Non volatile EEPROM memory prevents loss of

parameters during power shortage

• Built in default profile set-up for easier start up

and commissioning

• Configurable SPST output relay on

programmable models for lighting, exhaust fan or fresh air control

• 6 hour typical reserve time for clock in case of

power loss

• 0 to 10 Vdc economizer output for more retrofit

opportunities

- Built in dry bulb economizer logic using outdoor temperature sensor

- Input for supply/mixed air temperature sensor

Heat pump model specific features

• Selectable single or dual stage compressor

stages

• High balance point:

Locks out auxiliary heating when outside air temperature is above this value

• Low balance point:

Locks out heat pump compressor operation when outside air temperature is below this value

• Comfort/economy mode:

In economy mode, heat pump use is maximized before turning On auxiliary heating

• Compressor/auxiliary interlock:

Adds flexibility by locking out heat pump operation during auxiliary heating to prevent high pressure trip when the coil is downstream of the auxiliary heat source.

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) Location:

1- Should not

be installed on an outside wall. 2- Must be installed away from any heat source. 3- Should not be installed near an air discharge grill. 4- Should not be affected by direct sun radiation. 5- Nothing must restrain vertical air circulation to the thermostat.

B) Installation:

1- Swing open the thermostat PCB to the left by pressing the PCB

locking tabs. (Fig. 4)

2- Pull out cables 6” out of 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 proper side of base up.

6- Install anchors in the wall. 7- Insert screws in mounting holes on each side of the base.

(Fig. 4)

8- Gently swing back the circuit board on the base and push on it

until the tabs lock it. 10- Strip each wire 1/4 inch. 11- Insert each wire according to wiring diagram.

13- Gently push back into hole excess wring (Fig. 5) 14- Re-Install wiring terminals in correct location. (Fig. 5)

15- Reinstall the cover (top side first) and gently push back extra

wire length into the hole in the wall. 16- Install security screw.

• If replacing an old thermostat, label the wires before

removal of the old thermostat.

• Electronic controls are static sensitive devices.

Discharge yourself properly before manipulation and installing the thermostat.

• Short circuit or wrong wiring may permanently damage

the thermostat or the equipment.

• 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.

• All VT7600 series thermostats are to be used only as

operating controls. Whenever a control failure could lead to personal injury and/or loss of property, it becomes the responsibility of the user to add safety devices and/or alarm system to protect against such catastrophic failures.

Fig.3

Fig.5

Location of PCB retaining tabs

Fig.4

Re-install terminal blocks

Thermostat assembly

(VT7600B5x28 shown)

Fig.6

Y2Y

Wiring identification & screw terminal arrangement

Multistage 1H / 1C Heat Pum

Part Number VT7656B VT7605B VT7652B VT7600B VT7652A VT7600A Part Number VT7652H VT7600H

Programmable Yes No Yes No Yes No Programmable Yes No

Top left terminal block Top left terminal block

Y2 X X X X Y2 X X

Y1 X X X X X X Y1 X X

G X X X X X X G X X

RC X X X X X X RC X X

C X X X X X X C X X

Top right terminal block Top right terminal block

RH X X X X X X RH X X

W1 X X X X X X W1 X X

W2 X X X X O/B X X

Bottom terminal block Bottom terminal block

Econo X X

Aux X X X X X X Aux X X

DI1 X X X X X X DI1 X X

DI2 X X X X X X DI2 X X

RS X X X X X X RS X X

Scom X X X X X X Scom X X

OS X X X X X X OS X X

MS X X X X X X MS X X

Screw terminal arrangement

5 pole left top connector

3 pole left top connector

1 G RC C

RH W1

O/B

8 pole bottom connector

EC AU

D2 RS

Scom

OS MS

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

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

Note 3: Economizer output uses a half bridge rectifier. Reference of the control signal is the common of the power supply

Note 4: Electromechanical contacts are to be used with the digital inputs. Electronic triacs cannot be used as mean of

Note 5: The transformer of the unit provides power to the thermostat and the additional loads that will be wired to the

amps.

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

of the thermostat. (terminal C)

switching for the input. The switched leg to the input for the input to activate is terminal C ( common )

thermostat.

Detailed wiring diagrams for selected models

VT7656B5X28(X) 2 Heat / 2 Cool / Economizer / Programmable

Jumper J1 See note 1 (previous page)

Y2 Y1

RCG C

W1RH W2

Thermostat Terminals - VT7656B5x00

DI1 DI2 RS

RC G Y1

U DI1 DI2

Digital Input #1

Digital Input #2

Scom

RS OS

W1RH

MSScom OS

Cool

Stage 2

Stage 1

Thermostat internal wiring System wiring Jumper J1

Fan

Cool

24 Vac

VT7652H5X28(X) Heat pump / Programmable

Heat

Stage 1

Heat

Stage 2

0-10 Vdc

Com24V

Auxiliary

Output

Remote Outdoor

Sensor

Remote

Mixed Air

Sensor

Remote

Room

Sensor

Field contacts

Thermostat Terminals - VT7652H5x00

Y1 RC G

DI1 DI2

Scom

RHC W1

OSRS

O/B

Digital Input #1 Digital Input #2

Scom RS

Remote

Room

Sensor

Field contacts

Remote Outdoor

Sensor

MSOS

Remote

Mixed Air

Sensor

Compressor

Stage 2

Compressor

Stage 1

Thermostat internal wiring System wiring Jumper J1

Fan

Jumper J1 See note 1 (previous page)

RC C RH

24 Vac

uxiliar

Heat

O/B

Reversing

Valve

uxiliar

Output

DI1 DI2

Remote sensor accessories

Model no. Description

S3010W1028 Wall mounted temperature sensor S3020W1028 Wall mounted temperature sensor with override button and occupancy status LED S2020E1028 Outdoor temperature sensor S2060A1028 Averaging temperature sensor S2000D1028 Duct mounted temperature sensor

Remote mount temperature sensors use 10K NTC thermistors.

• This sensor can be used for:

• 3 thermistors with 2 dip switches are provided with each sensor for various

averaging combinations

• Optional occupancy led

• Optional override key

Wiring example of single remote room sensor:

VT7600 Series Thermostat

Scom

RS AU

1x S3020W1028 Remote wiring 1 sensor S2-1 = ON / S2-2 = ON

ScomRSScom

Aux

S3010W1028 Remote wiring 1 sensor S2-1 = ON / S2-2 = ON

ScomRSScom

Fig.8 – S3020W1028 wall mounted sensor

S2-1 = ON

S2-2 = ON

Dip switch

setting for:

1 senso

Wiring examples of 2 remote room sensors for averaging applications:

VT7600 Series Thermostat

Scom

RS AU

VT7600 Series Thermostat

Scom

RS AU

2x S3020W1028 Remote wiring 2 sensors S2-1 = OFF / S2-2 = ON

ScomRSScom

Aux

ScomRSScom

Aux

1x S3010W1028 and 1x S3020W1028 Remote wiring 2 sensors S2-1 = OFF / S2-2 = ON

ScomRSScom

Aux

ScomRSScom

Notes for averaging applications:

• S3010W1028 and S3020W1028 can be

• S3010W1028 and S3020W1028 are to

• Respect the dip switch setting in each

VT7600 Series Thermostat

Scom

RS AU

mixed matched.

be wired in parallel.

remote sensor.

Wiring examples of 3 remote room sensors for averaging applications:

VT7600 Series Thermostat

Scom

RS AU

2x S3010W1028 and 1x S3020W1028 Remote wiring 3 sensors S2-1 = OFF / S2-2 = OFF

ScomRSScom

Aux

ScomRSScom

VT7600 Series Thermostat

Scom

RS AU

1x S3010W1028 and 2x S3020W1028 Remote wiring 3 sensors S2-1 = OFF / S2-2 = OFF

ScomRSScom

Aux

2x S3010W1028 Remote wiring 2 sensors S2-1 = OFF / S2-2 = ON

ScomRSScom

Dip switch

setting for:

2 sensors

ScomRSScom

Aux

ScomRSScom

Dip switch

setting for:

3 sensors

S2-1 = OFF

S2-2 = ON

S2-1 = OFF

Temperature vs resistance chart for 10 Kohm NTC thermistor

= 10KΩ±3% - B

25°C

ºC ºF Kohm ºC ºF Kohm ºC ºF Kohm ºC ºF Kohm ºC ºF Kohm

-40 -40 324.3197 -20 -4 94.5149 0 32 32.1910 20 68 12.4601 40 104 5.3467

-39 -38 303.6427 -19 -2 89.2521 1 34 30.6120 21 70 11.9177 41 106 5.1373

-38 -36 284.4189 -18 0 84.3147 2 36 29.1197 22 72 11.4018 42 108 4.9373

-37 -35 266.5373 -17 1 79.6808 3 37 27.7088 23 73 10.9112 43 109 4.7460

-36 -33 249.8958 -16 3 75.3299 4 39 26.3744 24 75 10.4443 44 111 4.5631

-35 -31 234.4009 -15 5 71.2430 5 41 25.1119 25 77 10.0000 45 113 4.3881

-34 -29 219.9666 -14 7 67.4028 6 43 23.9172 26 79 9.5754 46 115 4.2208

-33 -27 206.5140 -13 9 63.7928 7 45 22.7861 27 81 9.1711 47 117 4.0607

-32 -26 193.9703 -12 10 60.3980 8 46 21.7151 28 82 8.7860 48 118 3.9074

-31 -24 182.2686 -11 12 57.2044 9 48 20.7004 29 84 8.4190 49 120 3.7607

-30 -22 171.3474 -10 14 54.1988 10 50 19.7390 30 86 8.0694 50 122 3.6202

-29 -20 161.1499 -9 16 51.3692 11 52 18.8277 31 88 7.7360 51 124 3.4857

-28 -18 151.6239 -8 18 48.7042 12 54 17.9636 32 90 7.4182 52 126 3.3568

-27 -17 142.7211 -7 19 46.1933 13 55 17.1440 33 91 7.1150 53 127 3.2333

-26 -15 134.3971 -6 21 43.8268 14 57 16.3665 34 93 6.8259 54 129 3.1150

-25 -13 126.6109 -5 23 41.5956 15 59 15.6286 35 95 6.5499 55 131 3.0016

-24 -11 119.3244 -4 25 39.4921 16 61 14.9280 36 97 6.2866 56 133 2.8928

-23 -9 112.5028 -3 27 37.5056 17 63 14.2629 37 99 6.0351 57 135 2.7886

-22 -8 106.1135 -2 28 35.6316 18 64 13.6310 38 100 5.7950 58 136 2.6886

-21

-6 100.1268 -1 30 33.8622 19 66 13.0307 39 102 5.5657 59 138 2.5926

= 3975K±1.5%)

25/85°C

S3010W1028 remote wall mounted temperature sensor, dip switch location

Fig.9 – Sensor dip switch location

Location of dip switch

S2000D1028, 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 sensor

Fig.10 – Remote duct mounted temperature sensor

S2060A1028, 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 fresh air plenum.

• Mixed air temperature averaging sensor for economizer models with the sensor in the mixing plenum.

S2020E1028, 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

WIRING S2000D1028, S2060A1028 and S2020E1028 Remote wiring 1 sensor Remote wiring 4 sensors

Scom

10 K

Scom

ScomMSScom

10 K

(

10 K

User menu flow chart: NOTE:

Prompts may not all be present depending on model selected

Temperat set? Y/N

Cooling set? Y/N

Temperature Temperature Temperature Temperature

If status is: Unoccupied

If status is: Temporary Occ upied Time,

Sys mode set? Y/N

off emergenc heat cool auto

Heating set? Y/N

Fan mode set? Y/N

On Smart

uto

Schedule set? Y/N

Unocc CL set? Y/N

Unocc HT set? Y/N

Override schd Y/N

Cancel ovrd Y/N

Clock set? Y/N

Time set? Y/N

Time

°F/°C set? Y/N

ppears on stand-alone

models only

Schedule hold Y/N

Resume Occ Hold Uno Hold

Day set? Y/N

Day

Exit? Y/N

°C °F

Exit menu Y/N

12/24hrs set? Y/N

12 / 24

Exit? Y/N

Sunday set? Y/N

Occupied day? Y/N

Occupied 12:00 pm

Time

Unoccup 12:00 pm

Time

Saturday set? Y/N

Occupied day? Y/N

Occupied 12:00 pm

Time

Unoccup 12:00 pm

Time

Friday set? Y/N

Occupied day? Y/N

Occupied 12:00 pm

Time

Unoccup 12:00 pm

Time

Thursday set? Y/N

Occupied day? Y/N

Occupied 12:00 pm

Time

Unoccup 12:00 pm

Time

Wednesda set? Y/N

Occupied day? Y/N

Occupied 12:00 pm

Time

Unoccup 12:00 pm

Time

Tuesday set? Y/N

Occupied day? Y/N

Occupied 12:00 pm

Time

Unoccup 12:00 pm

Time

Monday set? Y/N

Occupied day? Y/N

Occupied 12:00 pm

Time

Unoccup 12:00 pm

Time

Programming and status display instructions

1. Status display

The thermostat features a two-line, eight-character display. There is a low level back-light 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. Each item is scrolled one by one with the back lighting off. Pressing any key will cause the back light to come on.

Sequence of auto-scroll status display:

Room temperature Clock status System mode Schedule status

RoomTemp Monday Sys mode Occupied Outdoor Service x.x °C or °F 12.00 AM auto x.x °C or°F

Sys mode emergenc

Sys mode off Sys mode heat Sys mode cool

Occupied hold Unoccup

Unoccup hold Override

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.

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.

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:

Frost ON SetClock Service Filter Fan lock

Indicates that the heating is energized by the low limit frost protection room temperature setpoint 5.6 °C ( 42 °F ) Indicates that the clock needs to be reset. There has been a power failure which has lasted longer than 6 hours Indicates that there is a service alarm as per one of the programmable digital input ( DI1 or DI2 ) Indicates that the filters are dirty as per one of the programmable digital input ( DI1 or DI2 ) Indicates that the heating and cooling action are locked out due to a defective fan operation

Three status LEDs on the thermostat cover are used to indicate the status of the fan, a call for heat, or a call for cooling.

LED operation Heatpump models VT76xxH Multistage and single stage models

Fan LED on When G Fan terminal operates When G Fan terminal operates When G Fan terminal operates Heating LED on Cooling LED on

When Y1 and / or W1 terminal(s) operate in heating mode When Y1 terminal operate in cooling mode When Y1 terminal operate in cooling mode When Y1 terminal operate in cooling mode

VT7600A, VT7652A, VT7600B & VT7652B

When W1 terminal operate in heating mode When W1 terminal operate in heating mode

Fig.11 – Heatpump, multistage and single stage models

Outdoor

temperature

Frost ON

SetClock

Filter

Fan lock

Multistage economizer models VT7605B & VT7656B

and or economizer output is in function

Alarms

2. User programming instructions menu

The VT7600 series of thermostat feature an intuitive, menu-driven, back-lit LCD display that walks users through the programming steps, making the programming process extremely simple. This menu is typically accessed by the user to set the parameters such as temperature and time events, system mode, fan mode, etc.

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-programming menu. If the user pauses at any given time during programming, Auto Help text is displayed to help and guide the user through the usage

and programming of the thermostat.

Ex.:

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

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

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 programming and configuring the thermostat.

The up arrow key is used to increase temperature setpoint and to adjust the desired values when programming and configuring the thermostat.

When left unattended for 45 seconds, the display will resume automatic status display scrolling. To turn on the back light, press any key on the front panel. The back lit display will turn off when the thermostat is left unattended for 45 seconds

Sequence of user menu:

Override

Resume

Override schd Y/N

Appears only in unoccupied mode

Cancel ovrd Y/N

Appears only in override mode

Temperature

setpoints

Temperat

set Y/N

System mode

setting

Sys mode

set Y/N

Fan mode setting Schedules setting Clock setting Schedule hold

Fan mode

set Y/N

Schedule

set Y/N

Clock

set Y/N

Schedule

hold Y/N

Appears only on

stand-alone models

There is a default profile set in the thermostat from the factory. This enables the thermostat to operate as a non-programmable unit in day mode operation at start up.

Programmed default temperature setpoints:

Occupied cooling setpoint = 24 °C ( 75 °F )

Occupied heating setpoint = 22 °C ( 72 °F )

Programmed default modes:

System mode = Auto

Fan mode = Smart (for models with a communication module or

programmable stand-alone models)

Unoccupied cooling setpoint = 28 °C ( 82 °F )

Unoccupied heating setpoint = 18 °C ( 65 °F )

Fahrenheit scale

Setpoint type = permanent

Fan mode = Auto (for non-programmable stand-alone models)

Programmed default schedules:

Monday through Sunday

Occupied time is: 12 00 AM

Unoccupied time is: 11:59 PM

There will be a 1 minute unoccupied period every night at 11:59 PM with this default configuration.

A) Override an unoccupied period

Override schd Y/N

This menu will appear only when the thermostat 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 thermostat to go into occupied mode for an amount of time equal to the parameter “TOccTime” (1 to 12 hours).

B) Resume regular scheduling

Cancel ovrd Y/N

This menu does not appear in regular operation. It will appear only when the thermostat is in Unoccupied override mode. Answering “Yes” to this question will cause the thermostat to resume the regular programmed setpoints & scheduling.

C) Temperature setpoints

Permanent setpoint changes

Temperat set Y/N

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

Cooling setpoint

Occupied mode

Cooling set? Y/N

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

Cooling

70.0 °F

No next → Yes down

Use ▲▼ To set value

Heating setpoint

Occupied mode

Heating set? Y/N

↓

Heating

68.00 °F

No next → Yes down

Use ▲▼ To set value

Cooling setpoint

Unoccupied mode

Unocc CL set? Y/N

↓

Unocc CL

80.0 °F

No next → Yes down

Use ▲▼ To set value

Heating setpoint

Unoccupied mode

Unocc HT set? Y/N

↓

Unocc HT

60.0 °F

No next → Yes down

Use ▲▼ To set value

°F or °C set? Y/N

↓

Units °F

°F or °C

display setting

No next → Yes down

Use ▲▼ To set value

↓

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 thermostat and its setpoint. The Up ( The Down (

▲) arrow key will increment the setpoint by 0.5 degree (F or C).

▼) 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

Sys mode set Y/N

This menu is accessed to set system mode operation

Use ▲▼ to set value, Yes key to confirm

Sys mode auto

Sys mode cooling

Sys mode heating

Sys mode emergency

Sys mode off

Automatic mode

Automatic changeover mode between heating and cooling operation

Cooling mode

Cooling operation mode only

Heating mode

Heating operation mode only

Emergency heat mode ( heat pump models only )

Forced auxiliary heat operation mode only

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

E) Fan mode setting

Fan mode set Y/N

This section of the menu is permits the setting of the fan mode operation.

Use ▲▼ to set value, Yes key to confirm

Fan mode On

Fan mode Auto

On fan mode

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

Automatic fan mode

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

Smart fan mode

Fan mode Smart

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 programmable models or if DI1 or DI2 is set to RemNSB on stand-alone non-programmable models

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 )

Schedule set Y/N

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 programmed per day.

• Occupied & unoccupied periods can be set for each day.

Monday set? Y/N

Monday timer

Schedule set

No next → Yes down

Tuesday timer

Schedule set

Tuesday set? Y/N

↓

No next → Yes down

↓

Wednesday timer

Schedule set

Wednesda set? Y/N

No next → Yes down

↓

Other days are identical

Selects the day to be programmed 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 Previous

Yes next → No down

↓

Copy Y/N Previous

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

Typical examples of a 2 event office schedule

Ex. #1 Office building closed all weekend

Event Period #1 - Event #1 Period #1 - Event #2 Occupied Unoccupied

Setpoint Monday

Tuesday Wednesday Thursday Friday Saturday Sunday

Cool Heat Cool Heat

72 °F 70 °F 80 °F 62 °F

7.00 AM 6.00 PM Day time only

12.00 PM * 12.00 PM * Unoccupied

Note: 12:00 PM = Noon

12:00 AM = Midni

Daily

Occupancy

* Programming consecutive events to the same time will cause the thermostat to choose the last event as the time at which it will set

its schedule. In the above example, the thermostat will control to the unoccupied set point until 7:00 AM Monday.

Ex. #2 Commercial building which is occupied all weekend

Event Period #1 - Event #1 Period #1 - Event #2 Occupied Unoccupied

Setpoint Monday

Tuesday Wednesday Thursday Friday Saturday Sunday

Cool Heat Cool Heat

72 °F 70 °F 80 °F 62 °F

8.00 AM 5.00 PM Day time only

12.00 AM ** 11.59 PM ** Occupied

Daily

Occupancy

** To program 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.

G) Schedule set (4 events)

Schedule set Y/N

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 programmed per day.

• Occupied & Unoccupied periods can be set for each day.

• Programming the 3 rd. & 4 th. events to the same time will cancel the last period.

Monday set? Y/N

Monday timer

Schedule set

No next → Yes down

Tuesday timer

Schedule set

Tuesday set? Y/N

↓

No next → Yes down

↓

Wednesday timer

Schedule set

Wednesda set? Y/N

No next → Yes down

↓

Other days are identical

Selects the day to be programmed 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 Previous

Yes next → No down

↓

Copy Y/N Previous

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

Ex. #1 Four event retail establishment schedule

Event Period 1 - Event 1 Period 1 - Event 2 Period 2 - Event 3 Perio d 2 - Event 4 Setpoint Occupied Unoccupied Occupied Unoccupied Cool Heat Cool Heat Cool Heat Cool Heat

72 °F 70 °F 80 °F 62 °F 72 °F 70 °F 80 °F 62 °F

Monday Tuesday Wednesday Thursday Friday Saturday Sunday

7.00 AM 5.00 PM 12.00 PM * 12.00 PM *

7.00 AM 5.00 PM 7.00 PM 10.30 PM

12.00 PM * 12.00 PM * 12.00 PM * 12.00 PM *

Day/evening time only Day/evening time only

Daily

Occupancy

Day time only Day time only Day time only

Unoccupied Unoccupied

* Programming events to the same time will cancel the last period and leave the thermostat in unoccupied mode

Ex. #2 Residential

Event Period 1 - Event 1 Period 1 - Event 2 Period 2 - Event 3 Perio d 2 - Event 4 Setpoint Occupied Unoccupied Occupied Unoccupied Cool Heat Cool Heat Cool Heat Cool Heat

72 °F 70 °F 80 °F 62 °F 72 °F 70 °F 80 °F 62 °F Monday 6:00 AM 8:00 AM 4:00 PM 10:00 PM Tuesday 6:00 AM 8:00 AM 4:00 PM 10:00 PM Wednesday 6:00 AM 8:00 AM 4:00 PM 10:00 PM Thursday 6:00 AM 8:00 AM 4:00 PM 10:00 PM Friday 6:00 AM 8:00 AM 4:00 PM 11:30 PM

Day/evening time only Day/evening time only Day/evening time only Day/evening time only Day/evening time only

Saturday 8:00 AM * 8:00 AM * 8:00 AM * 11:59 PM * Sunday 12:00 AM * 12:00 AM * 12:00 AM * 11:59 PM *

Daily

Occupancy

Day time only

Occupied all day

* Programming consecutive events to the same time will cause the thermostat to choose the last event as the time at which it will set its

schedule. In the above example for Saturday, the thermostat 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 program the first event on Sunday at 12:00 AM. The thermostat will force a one minute unoccupied period for a one minute period (between 11:59 PM and 12:00 AM on Saturday)

H) Clock/Day Settings

Clock set Y/N

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

Time setting Day setting Time format setting

Time set? Y/N

Time 0:00

No next → Yes down

↓

Use ▲▼ To set value

Day set? Y/N

Day Monday

No next → Yes down

↓

Use ▲▼ To set value

12/24hrs set? Y/N

12/24hrs 12 hrs

J) Schedule hold

Schedule hold Y/N

This menu

• This menu will only appear on stand-alone thermostat, e.i. without a BACnet / Echelon module.

• This section of the menu permits the user to set a permanent schedule hold, which bypasses the internal thermostat

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

Schedule resume

Resume regular scheduling cancels the permanent hold and re-enables the regular

programming as set per internal scheduling or as per remote NSB via one of the DI’s configured as remote NSB.

This action can also by accomplished by using the Resume menu.

Any temporary setpoint that are active will be left active for the duration of the period as set

Schedule occ hold

per the TOccTime parameter.

Hold permanent occupied forces the thermostat into a permanent occupied mode using the

occupied setpoints. All timed scheduling functions are by-passed.

The PERMANENT OCCUPIED status will appear in the automatic status scroll. To resume

to regular scheduling, user must scroll to the Schedule Hold menu and select the Schedule resume option..

Schedule uno hold

Hold permanent unoccupied forces the thermostat into a permanent unoccupied mode

using the unoccupied setpoints. All timed scheduling functions are by-passed.

The PERMANENT UNOCCUPIED status will appear in the automatic status scroll. To resume to regular scheduling, user must scroll to the Schedule Hold menu and select the Schedule resume option..

No = exit Yes down Use ▲▼ To set value

↓

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 “Menu” for 8 seconds

- If a password lockout is active, “Password” is prompted. Enter password value using the “up” and “down”

arrows and press “Yes” to gain access to all configuration properties of the thermostat. A wrong password

entered will prevent local access to the configuration menu.

- Once in the configuration menu, press the “No” button repetitively to scroll between all the available

parameters.

- When the desired parameter is displayed, press “Yes” to adjust it to the desired value using “up” and “down”

arrows. Once set, press “Yes” to scroll to the next parameter.

Configuration

parameters

Pswrd

Configuration parameters menu access password

Default value = 0 ( no password

prompted )

Significance

Default value

Adjustments

This parameter sets a protective access password 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 (VT76xxX5x28B) Conditional parameter to Wireless models (VT76xxX5x28W)

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 500

Conditional parameter to Wireless models (VT76xxX5x28W)

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

This parameter (Personal Area Netw to link specific thermostats to a single specific Vykon JACE with wireless network adapter. For every thermostat reporting to a JACE (maximum of 30 wireless thermostats), be sure you

set the SAME PAN ID value both at the JACE and the

thermostat(s).

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

of available PAN ID is from 1 to 500

ork Identification) is used

Channel

DI 1

Channel selection

Default value = 10 Range is: 10 to 26

Digital input no.1 configuration

Conditional parameter to Wireless models (VT76xxX5x28W)

This parameter (Channel) is used to link specific thermostats to a specific Vykon JACE with wireless network adapter. For every thermostat reporting to a JACE (maximum of 30 wireless

thermostats ), be sure you set the SAME channel value both at

the JACE and the thermostat(s).

Vykon recommends using only the 2 last channels ( 252575MHz an

The default value of 10 is NOT a valid channel. The valid range

of available channel is from 11 to 26

d 26-2580MHz )

None, No function will be associated with the input

Open contact input = function not energized

Closed contact input = function energized

Default value = None

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 Serv

ice alarm will be

displayed on the thermostat LCD screen when the input is energized

DI 2

MenuScro

Digital input no. 2 configuration

Default value = None

Menu scroll

Default value = On = Scroll active

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

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

lockout

Keypad lockout levels

Default value = 0 No lock

Level

pwr del

0 1 2

Permanent Resume/ Override

scheduling

Resume

sched Y/N

Yes access Yes access Yes access Yes access Yes access Yes access Yes access Yes access Yes access No access Yes access No access No access No access Yes access No access

No access No access No access No access No access No access Yes access No access

Occupied

and

Unoccupied

Setpoints

RoomTemp

set Y/N

Power-up delay

Temporary

setpoints

using

arrows

Up key (▲)

Down key (▼)

Default value = 10 seconds

Frost pr

Frost protection enabled

Default value = Off 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 )

cool min Minimum cooling setpoint limit

Default value = 54 °F ( 12 °C )

Pband Proportional Band setting

Default value = 2.0 °F ( 0.6 °C )

Anticycle Minimum on/off operation time for stages

Default value = 2 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.

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

System

mode setting

Sys mode

set Y/N

Fan mode

setting

Fan mode

set Y/N

Schedules

setting

Schedule set Y/N

Clock

setting

Clock

set Y/N

Permanent

On initial power up of the thermostat ( 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 / thermostat in one location.

10 to 120 seconds 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

Maximum occupied & unoccupied heating setpoint adjustment. Heating setpoint range is:

40 to 90 °F ( 4.5 to 32.0 °C )

Minimum occupied & unoccupied cooling setpoint adjustment. Cooling setpoint range is:

54 to 100 °F ( 12.0 to 37.5 °C )

Adjust the proportional band used by the thermostat PI control loop.

Warning. Note that the default value of 2.0 °F ( 0.6 °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 thermostat location is problematic and leads to unwanted cycling of the unit. A typical example is a wall mounted unit where the thermostat is installed between the return and supply air feeds and is directly influenced by the supply air stream of the unit.

Value

2 2 F 0.6 C 3 3 F 1.2 C 4 4 F 1.7 C 5 5 F 2.2 C 6 6 F 2.8 C 7 7 F 3.3 C 8 8 F 3.9 C

F scale

Pband

C scale

Pband

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

hold

Schedule hold Y/N

Heat cph Heating stages cycles per hour

Default value = 4 C.P.H.

For multi stage models, heat cph applies to W1 & W2 For heat pump models, heat cph applies to W1 only (Emergency heat )

cool cph Cooling stages cycles per hour

Default value = 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 )

fan cont Fan control

Default value = On

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

ToccTime Temporary occupancy time

Default value = 3 hours

cal RS Room air temperature sensor

calibration

Default value = 0.0 °F or °C

cal OS Outside air temperature sensor

calibration

Default value = 0.0 °F or °C

H stage Number of heating stages. Applicable

to 2 stage models only

Default value = 2 stages

For heat pump models, H stage is limited to 1 stage only (W1 – Aux. Heat)

Will set the maximum number of heating stage cycles per hour under normal control operation. It represents the maximum number of cycles that the equipment will turn 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, 4, 5, 6,7 & 8 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.

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 control in heating mode.

When selecting On; the thermostat 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

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

Temporary occupancy time with occupied mode setpoints when override function is enabled When the thermostat 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

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

± 5.0 °F ( ± 2.5 °C )

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

± 5.0 °F ( ± 2.5 °C )

Will revert the operation of 2 stages thermostat to single stage operation only when the second heating step is not needed.

1 or 2 stages

C stage

HP stage

Number of cooling stages 2 stages model only

Default value = 2 stages

For heat pump models, HP stage selects the number of compressor stages

H lock Outside air temperature heating

lockout

Default value = 120 °F ( 49 °C )

C lock Outside air temperature mechanical

cooling lockout.

Default value = -40 °F ( -40 °C )

Unocc TM Unoccupied Timer value

Default 0.5 hours

2/4event Number of events configuration

Default value = 2 event

aux cont Auxiliary contact configuration

Default value = N.O. normally open

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

1 or 2 stages

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 )

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 )

Time delay between the moment where the thermostat 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 events, will set up programming for the following

Event 1 is for Occupied setpoints Event 2 is for Unoccupied setpoints

4 events, will set up programming 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

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 thermostat 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

high bp High balance point

Default value = 90 °F ( 32.0 °C )

Function will only be enabled if OS (outside air temperature sensor) is connected.

low bp Low balance point

Default value = -12 °F ( -24 °C )

Function will only be enabled if OS (outside air temperature sensor) is connected.

Comf/eco

Comfort or economy mode

Default value = Comfort

re valve Reversing valve operation O/B

Default value = O

Off, = no progressive recovery

The programmed occupied schedule time is the time at which the system will restart.

On, = progressive recovery active.

The programmed occupied schedule time is the time at which the desired occupied temperature will be attained. The thermostat 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.

Heat Pump models only

In Heating or Auto mode, it is the outside air temperature

value at which the auxiliary heat will be cut off. Above that value, only the heat pump will be used to maintain the heating setpoint

34 to 90 °F ( 1.0 to 32.0 °C ) In Heating, Cooling or Auto mode, it is the outside air

temperature value at which the heat pump operation will be cut off. Below that value, only the auxiliary heat will be used to maintain the heating setpoint

-40 to 30 °F ( -40 to -1.0 °C )

Sets the operation and interaction mode of the heat pump with the auxiliary heat.

Comfort mode. In Heating mode.

If the heat pump is not able to satisfy the heating setpoint, the auxiliary heat will be energized to satisfy the same heating

setpoint. Economy mode. In Heating mode.

If the heat pump is not able to satisfy the heating setpoint, the auxiliary heat will be energized to satisfy only when the temperature has dropped 2.0 °F ( 1.1 °C ) below the heating setpoint. Selecting economy mode will add a deadband between the heatpump & auxiliary heat in heating mode. The actual temperature maintained will be lower than the true heating setpoint to maximize the heat pump operation.

When the outdoor air temperature drops below the low balance point, the deadband will be eliminated and the

auxiliary heat will maintain the true heating setpoint alone.

Economy mode. In Emergency mode. If Emergency heat mode is selected, the setpoint maintained, will be the heating setpoint.

Heat pump reversing valve operation

O will energize the valve in cooling operation. B will energize the valve in heating operation O or B

comp/aux Compressor/auxiliary interlock

Default value = Off

Sets the operation and interaction mode of the heat pump with the auxiliary heat.

Interlock Off. In Heating mode.

If the heat pump is not able to satisfy the heating setpoint, the auxiliary heat will be energized at the same time as the heat pump stage. Typically applies when the air handler heat pump coil is installed before the auxiliary heat. ( all electric systems )

Interlock On. In Heating mode.

If the heat pump is not able to satisfy the heating setpoint, the auxiliary heat will be energized and the heat pump will be cut off. Typically applies when the air handler heat pump coil is installed after the auxiliary heat. ( add on systems ) There is a 2 minute delay to restart the heat pump, when the auxiliary heat is shut down

Off or On

Notes for Heat Pump models: When the outside air sensor is not connected or is shorted, the thermostat bypasses

the heating / cooling lockouts and the low / high balance points. Also Heat Pump model when set in Emergency system mode bypasses heating lockout and permits auxiliary heating whenever a heating demand occurs.

Economizer Model only

Chngstpt Changeover setpoint

In Cooling mode.

The outside air temperature value at which the cooling will be

Default value = 55 °F ( 13.0 °C )

switched over from mechanical ( compressor ) to free cooling ( economizer )

14 to 70 °F ( -10.0 to 21.0 °C )

min pos Minimum position

Default value = 0%

Outside air damper minimum position. Will be active only when fan is on ( G terminal ) and the internal or remote scheduling is in occupied mode. When internal or remote scheduling is in unoccupied mode and/or fan is off, minimum position will be set to 0%

0 to 100 % = 0 to 10 Vdc output range

Outside air percentage

Setting for 0-10 Vdc Actuator

Setting for 2-10 Vdc Actuator

0% 5%

0 to

20%

10% 15% 20% 25% 30%

24%

28% 32% 36% 40% 44%

C mech Mechanical cooling allowed

Default value = Off

In Cooling mode.

Allows the operation of the mechanical cooling if the free cooling ( economizer ) cannot maintain the cooling setpoint.

Off Typically applies when the MS ( mixed air temperature

sensor ) is installed after the mechanical cooling refrigeration coils. In this case, mechanical cooling will never operate at the same time as free cooling.

On Typically applies when the MS ( mixed air temperature

sensor ) is installed before the mechanical cooling refrigeration coils in the mixing plenum. In this case, mechanical cooling is allowed when the free cooling ( economizer operation ) cannot maintain the cooling setpoint.

Off or On

mix stpt Mixed air setpoint

Default value = 55 °F ( 13.0 °C )

Free cooling mixed air setpoint when economizer mode is enabled.

50 to 90 °F ( 10.0 to 32.0 °C )

MS dis Display mixed air temperature

Economizer model only, only if sensor

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

is installed

Troubleshooting guide

All models

Symptom Possible Cause Corrective Action

No display on the thermostat

Absent or incorrect supply voltage

Overloaded power transformer

1. Check power supply voltage between C & RC to be from 19-30 Vac

2. Check for tripped fuse or circuit breaker

Verify that the transformer used is powerful enough (enough VA’s) to supply all controlled devices including the thermostat

Keyboard menu does not access all functions

Temperature setpoints revert to original value after a certain time period

Thermostat will not call for heating

Thermostat will not call for cooling

Keyboard locked Change configuration parameter LOCKOUT to value

“0” to access all levels of the menu

Temporary setpoint option selected

1. The thermostat needs to be in Permanent setpoint mode for the new setpoint to be kept and memory and used all the time

2. Go to the Set temperature menu.

3. The last prompt is setpoint type. Set it to Permanent setpoint

Wrong mode selected Select heating mode Thermostat in Unoccupied mode

Select Occupied Hold in Schedule hold or Override to force the thermostat Occupied heating setpoint

Anticycle delay active Wait, the anticycling period will end and the

equipment will start Heating setpoint is satisfied Raise the Heating setpoint Heating lockout attained 1. Mode is locked out based on outside air

temperature

2. Change configuration parameter H Lock to value 120 °F ( 49 °C ) to by-pass lockout

Wiring error 1. Start the Fan by forcing the Fan ON mode

2. Put a jumper across terminals RH & W1. The heating should come ON. If it does not, verify wiring and check if a jumper is required between RC & RH

Wrong mode selected Select cooling mode Thermostat in Unoccupied mode

Select Occupied Hold in Schedule hold or Override to force the thermostat Occupied cooling setpoint

Anticycle delay active Wait, the anticycling period will end and the

equipment will start Cooling setpoint is satisfied Lower the cooling setpoint Cooling lockout attained 1. Mode is locked out based on outside air

temperature

2. Change configuration parameter C Lock to value 40 °F ( -40 °C ) to by-pass lockout

Wiring error 1. Start the Fan by forcing the Fan ON mode

2. Put a jumper across terminals RC & Y1. The cooling should come ON. If it does not, verify wiring

turn on the fan

Digital display shows missing digits or erratic segments

Wrong mode selected The thermostat will not Wiring error

1. Start the Fan by forcing the Fan ON mode

2. Put a jumper across terminals RC & G. The fan should come ON. If it does not, verify wiring

Defective display Replace thermostat

Troubleshooting guide

Heatpump models

Auxiliary heat does not operate

Wrong mode selected Select emergency heat mode Thermostat in Unoccupied mode

Select Occupied Hold in Schedule hold or Override to force the thermostat Occupied heating setpoint

Anticycle delay active Wait, the anticycling period will end and the

equipment will start Heating setpoint is satisfied Raise the Heating setpoint High Balance point attained 1. Mode is locked out based on outside air

temperature

2. Change configuration parameter High BP to value 90 °F ( 32 °C ) to by-pass lockout

Heating lockout attained 1. Mode is locked out based on outside air

temperature

2. Change configuration parameter H Lock to value 120 °F ( 49 °C ) to by-pass lockout

Wiring error 1. Start the Fan by forcing the Fan ON mode

2. Put a jumper across terminals RH & W1. The heating should come ON. If it does not, verify wiring and check if a jumper is required between RC & RH

Heat pump does not operate in heating mode

Wrong mode selected Select heating mode

Thermostat in Unoccupied mode

Select Occupied Hold in Schedule hold or Override to force the thermostat Occupied heating setpoint

Anticycle delay active Wait, the anticycling period will end and the

equipment will start Heating setpoint is satisfied Raise the Heating setpoint Low Balance point attained 1. Mode is locked out based on outside air

temperature

2. Change configuration parameter Low BP to value 12 °F ( -24 °C ) to by-pass lockout

Heating lockout attained 1. Mode is locked out based on outside air

temperature

2. Change configuration parameter H Lock to value 120 °F ( 49 °C ) to by-pass lockout

Wiring error 1. Start the Fan by forcing the Fan ON mode

2. Put a jumper across terminals RH & W1. The heating should come ON. If it does not, verify wiring and check if a jumper is required between RC & RH

Wrong reversing valve configuration

1. Wrong selection of parameter Re Valve

2. Select O will energize the valve in cooling operation. Valve is normally heat.

3. Select B will energize the valve in heating operation. Valve is normally cool.

Specifications

Thermostat power requirements: 19-30 Vac 50 or 60 Hz; 2 VA ( RC & C ) Class 2

RC to RH jumper 2.0 Amps 48 VA maximum

Operating conditions: 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

Sensor: Local 10 K NTC thermistor

Resolution: ± 0.1 °C ( ± 0.2 °F )

Control accuracy: ± 0.5 ° C ( ± 0.9 °F ) @ 21 °C ( 70 °F ) typical calibrated

Occupied and unoccupied setpoint range

12.0 to 37.5 °C ( 54 to 100 °F )

cooling:

Occupied and unoccupied setpoint range

4.5 °C to 32 °C ( 40 °F to 90 °F )

heating:

Room and outdoor air temperature range -40 °C to 50 °C ( -40 °F to 122 °F )

Proportional band for room temperature control: Factory set, heating and cooling at: 1.1°C ( 2.0°F )

Digital inputs: Relay dry contact only across C terminal to DI1 or DI2

Contact output rating: Each relay output: ( Y1, Y2, G, W1, W2 & AU )

30 Vac, 1 Amp. maximum 30 Vac, 3 Amp. in-rush

Economizer analog output rating:

0 to 10 Vdc into 2KΩ resistance min.

Economizer analog output accuracy: ± 3% typical

Wire gauge 18 gauge maximum, 22 gauge recommended

Dimensions: 4.94” x 3.38” x 1.13” Approximate shipping weight: 0.75 lb ( 0.34 kg ) Agency Approvals all models:

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)

Agency Approvals all models

FCC: Compliant to CFR 47, Part 15, Subpart B, Class A (US) CE: EMC Directive 89/336/EEC (Europe Union) C-Tick: AS/NZS CISPR 22 Compliant (Australia / New Zealand)

Supplier Code Number N10696

Agency Approvals Wireless models

FCC: Compliant to: Part 15, Subpart C

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.

Drawing & dimensions

Vykon and WEEE

The Waste Electrical and Electronic Equipment (WEEE) mark applies only to countries within the European Union (EU) and Norway. Electric/Electronic devices are labeled in accordance with European Directive 2002/96/EC concerning waste electrical and electronic equipment (WEEE). The Directive determines the framework for the return and recycling of used Electric/Electronic devices at the end of life within and throughout the European Union (EU). This label is applied to various products to indicate the product is not to be thrown away, but rather be reclaimed upon the end of the products useful life per this directive. Users of electric and electronic equipment with the WEEE marking per annex IV of the WEEE Directive must not dispose of end of life Electric/Electronic waste as unsorted municipal waste, but rather use the collection framework available to them for the return, recycle and recovery of WEEE and minimize the environmental impact of Electric/Electronic waste due to the presence of hazardous substance. For additional information please go to: www.Vykon.com

Important Notice

instruments have undergone rigorous tests and verifications prior to shipment 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 / installer / electrical system designer to incorporate safety devices ( such as relays, flow switch, thermal protections, etc…) and/or alarm system to protect the entire system against such catastrophic failures. Tampering of the devices or miss application of the device will void warranty.

All VT7600 series controls are for use as operating controls only and are not safety devices. These

Vykon VT7600 Series User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

PAN ID

Channel

DI 1

Default value = None

Frost pr

On or Off

Unocc TM Unoccupied Timer value

2/4event Number of events configuration

Prog rec Progressive recovery enabled

low bp Low balance point

O will energize the valve in cooling operation. B will energize the valve in heating operation O or B

Off or On

Troubleshooting guide