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Viconics PIR Ready7 VT76x7 Series Integration Manual

Programmable & non-programmable thermostats for commercial hvac applications; for lonworks
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PIR Ready7 VT76x7 Series
Programmable & Non-Programmable Thermostats
For Commercial HVAC Applications
LonWorks Integration Manual
ITG-VT760x7-PIR-LON-E01
(028-6007 R1 - Issue Date: May 30, 2008)
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Summary of Contents for Viconics PIR Ready7 VT76x7 Series

  • Page 1 PIR Ready7 VT76x7 Series Programmable & Non-Programmable Thermostats For Commercial HVAC Applications LonWorks Integration Manual ITG-VT760x7-PIR-LON-E01 (028-6007 R1 - Issue Date: May 30, 2008)

  • Page 2: Table Of Contents

    The thermostats are also compatible with the new Viconics PIR cover accessories. Thermostats equipped with a PIR cover provide advanced active occupancy logic, which will automatically switch occupancy levels from Occupied to Stand-By and Unoccupied as required by local activity being present or not.

  • Page 3: Pid History Revision Table

    PID History Revision Table XIF, APB and NXE File Names and Corresponding PIDs. This manual information is to be used only with the current released VT76x7 PIR ready thermostats. Used on current APB / NXE / XIF file Revision Level Associated PID released thermostat names...

  • Page 4: Snvts And Scpts Table Per Model

    SNVTs and SCPTs Table Per Model Snivet Type Point Name Enumeration and Signature Type nviSpaceTemp SNVT_temp_p nviOutdoorTemp SNVT_temp_p nviOccManCmd SNVT_occupancy nviApplicMode SNVT_hvac_mode nviSetpoint SNVT_temp_p nviTimeSet SNVT_time_stamp nciDaySched[0] UNVT_day_sched nciDaySched[1] UNVT_day_sched nciDaySched[2] UNVT_day_sched nciDaySched[3] UNVT_day_sched nciDaySched[4] UNVT_day_sched nciDaySched[5] UNVT_day_sched nciDaySched[6] UNVT_day_sched nciSetPts SNVT_temp_setpt occupied_cool...
  • Page 5 Snivet Type Point Name Enumeration and Signature Type nciCfg3RtuHp UNVT_cfg_3_rtu_rh Associate with UNVT_cfg_3_rtu_rh format file di_config Enumeration Set Used: input_cfg_model_d_t aux_contact_config Enumeration Set Used: aux_contact_cfg_t number_of_events Enumeration Set Used: nb_of_events_t progressive_recovery Enumeration Set Used: off_on_state_t number_of_heating_stages Unsigned-Short number_of_cooling_stages Unsigned-Short rh_frontal_display Enumeration Set Used: off_on_state_t humid_low_reset_temp...
  • Page 6 Snivet Type Point Name Enumeration and Signature Type nvoRHStatus UNVT_rh_status Associate with UNVT_rh_status format file local_humidity_level SNVT_lev_percent supply_humidity_level SNVT_lev_percent effective_reset_humid_setpoint SNVT_lev_percent pi_humid_demand_output SNVT_lev_percent dehumid_output_active Enumeration Set Used: off_on_state_t nvoEffectSetpt SNVT_temp_p nvoSetpoint SNVT_temp_p nciSndHrtBt SNVT_time_sec nciMinOutTm SNVT_time_sec nciRcvHrtBt SNVT_time_sec nciMajVer SCPT_maj_ver nciMinVer SCPT_min_ver...

  • Page 7: Input Network Variables (Nvi's) Description

    Input Network Variables (nvi’s) Description Parameter Variable Name Function Room network input This input network variable provides a network remote Temperature SNVT_temp_p temperature value to the thermostat. If a valid value is present, nviSpaceTemp the internal temperature reading (internal sensor) is no longer used.
  • Page 8 Parameter Variable Name Function Occupied network Input This input network variable is used to allow the occupied Cool & Heat SNVT_temp_p temperature setpoints only to be changed via the network from a Setpoints nviSetpoint single analog value. (Note: the Unoccupied setpoints are not changed).

  • Page 9: Output Network Variables (Nvo's) Description

    Output Network Variables (nvo’s) Description All output network variables will be updated no faster than the Minimum Send Time (nciMinOutTm) configuration value, if used. An output network variable will be transmitted immediately when its value has changed significantly. Additionally, this variable will also be transmitted as a heartbeat output on a regular basis as dictated by the Maximum Send Time (nciSndHrtBt) configuration value.
  • Page 10 Parameter Variable Name Function Occupancy network output This output network variable is used to indicate the actual SNVT_occupancy occupancy mode of the unit. This information is typically reported nvoEffectOccup to a supervisory controller or provided to another Space Comfort Controller to coordinate the operation of multiple units Valid Range: 0 = OC_OCCUPIED 1 = OC_UNOCCUPIED...
  • Page 11 Parameter Variable Name Function Thermostat’s network output This network variable output is used to report the Space Comfort I/O status UNVT_rh_status humidity function’s status nvoRHStatus Name Valid value local humidity level 0 to 100% RH supply humidity level 0 to 100% RH effective reset humid setpoint 0 to 100% RH pi humid demand output...

  • Page 12: Configuration Properties (Nci's) Description

    Configuration properties (nci’s) Description Parameter Variable Name Function Schedule network input config This configuration property defines the schedule for every day of UNVT_day_sched the week (from Monday to Sunday or from day 0 to day 6). This nciDay_Sched[x] nci is linked with the nvoEffectOccup variable. x = 0 to 6 2 or 4 events can entered depending on the nb_of_events variable.
  • Page 13 Parameter Variable Name Function fan mode 0 = On 0 = On 1 = Auto 2 = Smart fan control 0 = Off 1 = On 1 = On fan delay 0 = Off 0 = Off 1 = On keypad lockout 0 = No_Lockout No_Lockout...
  • Page 14 Parameter Variable Name Function HVAC Unit- network input config This configuration property helps the user identify the type of Type SNVT_hvac_type equipment being monitored. Identifier nciHvacType Valid Range: Value Identifier Name HVT_GENERIC – Not Used Generic HVT_FAN_COIL Fan Coil HVT_VAV – Not Used Variable Air Volume Terminal HVT_HEAT_PUMP Heat Pump...

  • Page 15: Integration - Global Commands

    Integration – Global Commands The following figure shows which objects from the thermostat can be monitored and commanded from the BAS front-end. Figure 1: Global commands from a BAS front-end to a VT76x7 series tstat...

  • Page 16: Integration - Graphic User Interface (Gui) Objects

    Integration – Graphic User Interface (GUI) Objects The following objects should be typically used in a GUI: nvoSpaceTemp occupied_heat (nciSetpts); unoccupied_heat (nciSetpts); occupied_cool (nciSetpts); unoccupied_cool (nciSetpts); nvoOutdoorTemp nvoEffectOccup heat_output_primary (nvoUnitStatus) cool_output (nvoUnitStatus) fan (nvoSccStatus) cool_1 (nvoSccStatus) cool_2 (nvoSccStatus) heat_1 (nvoSccStatus) heat_2 (nvoSccStatus) Local_RH_level (nvoRHStatus) supply_RH (nvoRHStatus)

  • Page 17: Wiring Guide

    78000 bits per second Network segment length varies depending on wire type. Table 1: Summary of Specifications for a Viconics’ EIA-485 Network Network Configuration The Echelon network is designed to support free topology wiring and will accommodate bus, star, loop or any of these topologies.

  • Page 18: Maximum Number Of Devices

    Maximum Number Of Devices Up to 64 transceivers are allowed per network segment. If your network requires more than 64 transceivers a repeater is then required to extend your network...

  • Page 19: Maximum Cable Length

    Maximum Cable Length The maximum length of a chain is related to its transmission speed. Using proper cable, Echelon supports a baud rate of 78 kilobits per second for distances up to 1600-ft (500 m) in free topology and 8800 ft (2700 m) in bus topology with double terminations. If you require a maximum network length of more than 1600-ft (500 m) or 8800 ft (2700 m), then a repeater is required to extend the network.

  • Page 20: Network Adapter

    • Please note that all release notes for the XIF, APB & NXE software files will be included under the following folder name on your hard drive: C:\LonWorks\Import\Viconics. The name of the file is: VT7xxxReadme.txt Plug-Ins File: Plug-Ins simplify start-up, maintenance, configuration and reduce the installation effort.

  • Page 21: Device Identification

    Device Identification An Echelon device has a unique mechanism to identify itself, the Neuron ID, which is obtained during commissioning. There are two ways of getting the Neuron ID: with a Service Pin or manually. Service PIN The Service PIN is used to identify the device at commissioning. By pressing simultaneously the “Yes” button and the “No”...

  • Page 22: Tips And Things You Need To Know

    The heartbeat parameter of a Tridium front-end should be set at the slowest configuration possible so that nviTimeStamp updates correctly; With any LNS Tools, nviTimeStamp should be set to refresh everyday or on power-up; Viconics recommend to use the provided Viconics format files as stipulated in the snivet per model table view Troubleshooting Section...

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