Installation guide

ManualsBrandsVykon ManualsConsumer electronicsVT7600 Series

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 di

ital in

uts ⇒ Adds functionalit

• Smart fan o

eration ⇒ Saves ener

durin

ht mode

• Uni

ue confi

uration ke

with

assword

rotection ⇒ Minimizes

arameter tam

erin

• Lockable ke

ad ⇒ Tam

roof, no need for thermostat

uards

• 6 hour reserve time for clock ⇒ No need to re

ram da

/time after

ower shorta

• Remote room and outdoor tem

erature senso

⇒ Increase flexibilit

and functionalit

• Auxiliar

out

ut ⇒ Can be used for li

htin

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)

⇒ Can be used for all types of establishments

• Economizer out

ut 0-10 Vdc economizer models onl

⇒ Excellent retrofit o

ortunities

Summary of content (25 pages)

PAGE 1
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.
PAGE 2
• 3 Heat/2 Cool (on heat pump models only) ⇒ Support single and two stages heat pump with one auxiliary heat stage
PAGE 3
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.
PAGE 4
Installation • • • • Remove security screw on the bottom of thermostat cover. Open up by pulling on the bottom side of thermostat. Remove Assembly and remove wiring terminals from sticker. (Fig. 3) Please note the FCC ID and IC label installed in the cover upon removal of cover for the wireless products. A) 12345- Location: Should not be installed on an outside wall. Must be installed away from any heat source. Should not be installed near an air discharge grill.
PAGE 5
Wiring identification & screw terminal arrangement Multistage Part Number Programmable 1H / 1C VT7656B VT7605B VT7652B VT7600B VT7652A Yes No Yes No Yes Heat Pump VT7600A Part Number No Top left terminal block Programmable VT7652H VT7600H Yes No Top left terminal block Y2 X X X X Y2 X Y1 X X X X X X Y1 X 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
PAGE 6
Detailed wiring diagrams for selected models Thermostat Terminals -VT7656B5x00 VT7656B5X28(X) 2 Heat / 2 Cool / Economizer / Programmable Y2 Y1 G RC C RH W1 W2 EC AU DI1 DI2 RS Y1 Cool Stage 2 G RC C RH Digital Input #2 W1 W2 Heat Stage 1 Fan OS MS Digital Input #1 Jumper J1 See note 1 (previous page) Y2 Scom Cool Stage 1 AU EC DI1 DI2 0-10 Vdc Heat Stage 2 24V RS Scom OS MS Remote Mixed Air Sensor Remote Room Sensor Com Auxiliary Output Remote Outdoor Sensor 24 Va
PAGE 7
Remote sensor accessories Model no. S3010W1028 S3020W1028 S2020E1028 S2060A1028 S2000D1028 Description Wall mounted temperature sensor Wall mounted temperature sensor with override button and occupancy status LED Outdoor temperature sensor Averaging temperature sensor Duct mounted temperature sensor Remote mount temperature sensors use 10K NTC thermistors.
PAGE 8
Temperature vs resistance chart for 10 Kohm NTC thermistor (R25°C = 10KΩ±3% - B25/85°C = 3975K±1.5%) ºC ºF ºF ºF Kohm ºC S3010W1028 remote wall mounted temperature sensor, dip switch location Kohm ºC Kohm ºC Kohm ºC ºF 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.
PAGE 9
User menu flow chart: NOTE: Prompts may not all be present depending on model selected MENU If status is: Unoccupied Override schd Y/N If status is: Temporary Occupied Time, Temperat set? Y/N Sys mode set? Y/N off emergenc heat cool auto Fan mode set? Y/N Cancel ovrd Y/N Appears on stand-alone models only Clock set? Y/N Schedule set? Y/N On Smart Auto Resume Occ Hold Uno Hold Time set? Y/N Cooling set? Y/N Temperature Heating set? Y/N Temperature Exit? Y/N Unocc CL set? Y/N Temperatu
PAGE 10
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 RoomTemp x.
PAGE 11
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.
PAGE 12
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).
PAGE 13
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 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.
PAGE 14
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.
PAGE 15
H) Clock/Day Settings Clock set Y/N This section of the menu permits the user to set the time and day. Time setting Time set? Y/N Time 0:00 No next → Yes down ↓ Use ▲▼ To set value Day setting Day set? Y/N Day Monday No next → Yes down ↓ Use ▲▼ To set value Time format setting 12/24hrs set? Y/N 12/24hrs 12 hrs No = exit Yes down ↓ Use ▲▼ To set value J) Schedule hold Schedule hold Y/N This menu • • • • • This menu will only appear on stand-alone thermostat, e.i.
PAGE 16
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.
PAGE 17
Channel Channel selection Conditional parameter to Wireless models (VT76xxX5x28W) Default value = 10 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 Range is: 10 to 26 This parameter (Channel) is used to link specific thermostats to a specific Vykon JACE with wireless network adapter.
PAGE 18
lockout Keypad lockout levels 0 = No lock 1 = Low level 2 = High level Default value = 0 No lock Level 0 1 2 pwr del Resume/ Override scheduling Permanent Occupied and Unoccupied Setpoints Temporary setpoints using arrows System mode setting Fan mode setting Schedules setting Clock setting Permanent hold Resume sched Y/N RoomTemp set Y/N Up key (▲) Down key (▼) Sys mode set Y/N Fan mode set Y/N Schedule set Y/N Clock set Y/N Schedule hold Y/N Yes access Yes access Yes access Yes a
PAGE 19
Heat cph cool cph Deadband fan cont fan del ToccTime cal RS cal OS H stage 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.
PAGE 20
C stage Or HP stage H lock C lock Unocc TM Number of cooling stages 2 stages model only Default value = 2 stages For heat pump models, HP stage selects the number of compressor stages Outside air temperature heating lockout Default value = 120 °F ( 49 °C ) Outside air temperature mechanical cooling lockout. Default value = -40 °F ( -40 °C ) Unoccupied Timer value Default 0.
PAGE 21
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 low bp Comf/eco re valve 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.
PAGE 22
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.
PAGE 23
Troubleshooting guide All models Symptom No display on the thermostat Possible Cause Absent or incorrect supply voltage Overloaded power transformer Corrective Action 1. Check power supply voltage between C & RC to be from 19-30 Vac 2.
PAGE 24
Troubleshooting guide Heatpump models Auxiliary heat does not operate Wrong mode selected Thermostat in Unoccupied mode Anticycle delay active Heating setpoint is satisfied High Balance point attained Heating lockout attained Wiring error Heat pump does not operate in heating mode Select emergency heat mode Select Occupied Hold in Schedule hold or Override to force the thermostat Occupied heating setpoint Wait, the anticycling period will end and the equipment will start Raise the Heating setpoint
PAGE 25
Specifications Thermostat power requirements: Operating conditions: Storage conditions: Sensor: Resolution: Control accuracy: Occupied and unoccupied setpoint range cooling: Occupied and unoccupied setpoint range heating: Room and outdoor air temperature range Proportional band for room temperature control: Digital inputs: Contact output rating: 19-30 Vac 50 or 60 Hz; 2 VA ( RC & C ) Class 2 RC to RH jumper 2.0 Amps 48 VA maximum 0 °C to 50 °C ( 32 °F to 122 °F ) 0% to 95% R.H.