Vykon VT7200 Series Use and care manual

1
PIR Ready VT7200 & VT7300 Series
24 Vac Fan Coil and Zoning Thermostats
For Commercial and Lodging HVAC Applications
LonWorks Integration Manual
September 1, 2010

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VT7200X Series Product Overview
The VT7200 PI thermostat family is specifically designed for zoning
applications.
Typical applications include local hydronic reheat valve control and
pressure dependent VAV with or without local reheat. The product
features a backlit LCD display with dedicated function menu keys for
simple operation. Accurate temperature control is achieved due to the
product’s PI proportional control algorithm, which virtually eliminates
temperature offset associated with traditional, differential-based
thermostats. Models are available for 3 point floating and analog 0 to 10
Vdc control. In addition remote room sensing is available.
They all contain an SPST auxiliary switch that can be used to control
lighting or auxiliary reheat. 3 additional inputs are also provided for
monitoring and / or various advanced functions.
VT73xxX Series Product Overview
The VT7300 PI thermostat family is specifically designed for fan coil
control. The product features a backlit LCD display with dedicated
function menu buttons for simple operation. Accurate temperature
control is achieved due to the product’s PI proportional control algorithm,
which virtually eliminates temperature offset associated with traditional,
differential-based thermostats.
Models are available for On/Off, 3 point floating and analog 0 to 10 Vdc
control and can control up to three fan speeds. Three additional inputs
are also provided for monitoring and / or various advanced functions.
All models feature configurable System and Fan button functions to meet
all possible applications. They all contain an SPST auxiliary switch that can be used to control lighting or
auxiliary reheat.
All devices are also available with Echelon, BACnet MS-TP or Zigbee wireless network adapter.
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 Stand-By and Unoccupied as required by local activity being present or not. This advanced
occupancy functionality provides advantageous energy savings during occupied hours without sacrificing
occupant comfort. All thermostats can be ordered with or without a factory installed PIR cover.
The additional following documents are available :
•VYKONStat PIR Ready VT7200 Series Installation Guide.
•VYKONStat PIR Ready VT7300 Series Installation Guide.
•VYKONStat PIR Application Guide
•VYKONStat PIR Cover Assembly Installation Guide
Fig.1 - VT7200 Series

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Contents
•PID History Revision Table
•Thermostat Objects
•Applicable SNVTs and SCPTs Table Per Model
•Input Network Variables (nvi’s) Description
•Output Network Variables (nvo’s) Description
•Configuration Properties (nci’s) Description
•Integration - Global Commands
•Integration - Graphic User Interface (GUI) Objects
•Integration - Configuration Objects
•Wiring Guide
Overview
Network Configuration
Maximum Number Of Devices
Maximum Cable Length
Terminators
•Network Adapter
•Software Files
•Device Identification
•Tips And Things You Need To Know
•Troubleshooting Section
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 VT7200X & VT73xxX PIR ready thermostats.
Used on current
released thermostat APB / NXE / XIF file names Revision Level Associated PID
PIR Ready VT7200 / VT7300 Series VT72_73_PIR.XIF Rev 3.0 80:00:C5:55:00:04:04:20
This manual information is NOT to be used only with the previously released VT7200X & VT7300X thermostats.
Previously
released thermostat APB / NXE / XIF file names Revision Level Associated PID
Non-RoHS VT7200 / VT7300 Series T7X-FC.XIF Rev 1.0 to 1.3 80:00:C5:55:00:04:04:0B
RoHS VT7200 / VT7300 Series T7X-FCr.XIF Rev 1.0 to 1.3 80:00:C5:55:00:04:04:1B
RoHS PIR VT7200 / VT7300 Series ** T7X-FC-PIR.XIF Rev 2.0 80:00:C5:55:00:04:04:1D

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Thermostat Objects
VT7300 Space Comfort Controller
Object Type #8500
nvoSpaceTemp
SNVT_temp_p
Configuration Properties
Send Heartbeat (mandatory)
Temperature Setpoints (mandatory)
Minimum Send Time (optional)
Receive Heartbeat (optional)
nviSpaceTemp
SNVT_temp_p
Mandatory
Network
Variables
Optional
Network
Variables
Manufacturer
Network
Variables
nvoUnitStatus
SNVT_hvac_status
nvoDischAirTemp
SNVT_temp_p
nvoEffectOccup
SNVT_occupancy
nvoSpaceRH
SNVT_lev_percent
Manufacturer Configuration Properties
Please see the manual for details.
Plug-In for configuration provided.
nviOutdoorTemp
SNVT_temp_p
nvoSCCstatus
SNVT_state_64
nviSetpoint
SNVT_temp_p
nviSpaceRH
SNVT_lev_percent
nviFanSpeedCmd
SNVT_switch
nviAuxHeatEnable
SNVT_switch
nviOccManCmd
SNVT_occupancy
nviApplicMode
SNVT_hvac_mode
nviHeatCool
SNVT_hvac_mode
nviRemLockout
SNVT_count
nviDhumidLCK
SNVT_switch
nviAuxOut
SNVT_switch
nvoTerminalLoad
SNVT_lev_percent

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SNVTs1and SCPTs2Table Per Model
1: SNVTs: Standard Network Variables Types
2: SCPTs: Standard Configuration Parameters Types
No
Sub
Point Name
Snivet Type
Enumeration and
Signature Type
VT7200C5x28E
VT7200F5x28E
VT7300A5x28E VT7300C5x28E VT7350C5x28E VT7305A5x28E VT7305C5x28E VT7355C5x28E
VT7300F5x28E VT7350F5x28E VT7305F5x28E VT7355F5x28E
N/A: Not applicable on this model
0 nviSpaceTemp SNVT_temp_p X X X X X X X X X X X X
1 nviOutdoorTemp SNVT_temp_p X X X X X X X X X X X X
2 nviSetpoint SNVT_temp_p X X X X X X X X X X X X
3 nviSpaceRH SNVT_lev_percent N/A N/A N/A N/A X N/A N/A X N/A X N/A X
4 nviFanSpeedCmd SNVT_switch N/A N/A X X X X X X X X X X
5 nviAuxHeatEnable SNVT_switch X X X X X X X X X X X X
6 nviOccManCmd SNVT_occupancy X X X X X X X X X X X X
7 nviApplicMode SNVT_hvac_mode X X X X X X X X X X X X
8 nviHeatCool SNVT_hvac_mode X X X X X X X X X X X X
9 nviRemLockout UNVT_count X X X X X X X X X X X X
10 nviDhumiLCK SNVT_switch N/A N/A N/A N/A X N/A N/A X N/A X N/A X
11 nviAuxOut SNVT_switch X X X X X X X X X X X X
12 nvoSpaceTemp SNVT_temp_p X X X X X X X X X X X X
13 nvoDischAirTemp SNVT_temp_p X X X X X X X X X X X X
14 nvoSpaceRH SNVT_lev_percent N/A N/A N/A N/A X N/A N/A X N/A X N/A X
15 nvoEffectOccup SNVT_occupancy X X X X X X X X X X X X
16 nvoUnitStatus SNVT_hvac_status X X X X X X X X X X X X
1 mode x x x x x x x x x x x x
2 heat_output_primary x x x x x x x x x x x x
4 cool_output x x x x x x x x x x x x
6 fan_output N/A N/A x x x x x x x x x x
7 in_alarm x x x x x x x x x x x x
17 nvoSccStatus UNVT_thermo_state_fc X X X X X X X X X X X X
Associate with UNVT_thermo_state_fc format file
1 bi1_status True bit index 2 x x x x x x x x x x x x
2 bi2_status True bit index 1 x x x x x x x x x x x x
3 ui3_ status True bit index 0 x x x x x x x x x x x x
4 dehumidification_active True bit index 7 N/A N/A N/A N/A x N/A N/A x N/A x N/A x
5 state_terminal_bo1 True bit index 13 x N/A N/A x x N/A x x N/A N/A N/A N/A
6 state_terminal_bo2 True bit index 12 x N/A x x x x x x N/A N/A N/A N/A
7 state_terminal_bo3 True bit index 15 x N/A x x x x x x N/A N/A N/A N/A
8 state_terminal_bo4 True bit index 14 x N/A N/A x x N/A x x N/A N/A N/A N/A
9 state_terminal_bo5 True bit index 20 x x x x x x x x x x x x
10 fan_low True bit index 21 N/A N/A x x x x x x x x x x
11 fan_med True bit index 22 N/A N/A x x x x x x x x x x
12 fan_high True bit index 23 N/A N/A x x x x x x x x x x
13 window_opened True bit index 24 x x x x x x x x x x x x
14 service_alarm True bit index 28 x x x x x x x x x x x x
15 filter_alarm True bit index 29 x x x x x x x x x x x x
16 local_pir_motion True bit index 39 x x x x x x x x x x x x
18 nvoTerminalLoad SNVT_lev_percent X X X X X X X X X X X X
19 nciSetpoints SNVT_temp_setp X X X X X X X X X X X X
1 occupied_cool x x x x x x x x x x x x
2 standby_cool x x x x x x x x x x x x
3 unoccupied_cool x x x x x x x x x x x x
4 occupied_heat x x x x x x x x x x x x
5 standby_heat x x x x x x x x x x x x
6 unoccupied_heat x x x x x x x x x x x x

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No
Sub
Point Name
Snivet Type
Enumeration and
Signature Type t
VT7200C5x28E
VT7200F5x28E
VT7300A5x28E VT7300C5x28E VT7350C5x28E VT7305A5x28E VT7305C5x28E VT7355C5x28E
VT7300F5x28E VT7350F5x28E VT7305F5x28E VT7355F5x28E
20 nciCfg2FcuZn UNVT_cfg_2_fcu_zn X X X X X X X X X X X X
Associate with UNVT_cfg_2_fcu_zn format file
1 bi1_config Enumeration Set Used:
input_cfg_model_a_t x x x x x x x x x x x x
2 bi2_config Enumeration Set Used:
input_cfg_model_b_t x x x x x x x x x x x x
3 ui3_config Enumeration Set Used:
input_cfg_model_c_t x x x x x x x x x x x x
4 room_humidity_display Enumeration Set Used:
off_on_state_t N/A N/A N/A N/A x N/A N/A x N/A x N/A x
5 dehumidification_setpoint SNVT_lev_percent N/A N/A N/A N/A x N/A N/A x N/A x N/A x
6 dehumumidification_hysterisis SNVT_lev_percent N/A N/A N/A N/A x N/A N/A x N/A x N/A x
7 dehumidification_max_cooling SNVT_lev_percent N/A N/A N/A N/A x N/A N/A x N/A x N/A x
8 calib_room_humidity_sensor SNVT_lev_percent N/A N/A N/A N/A x N/A N/A x N/A x N/A x
22 nciSccModel UNVT_model_info_2 X X X X X X X X X X X X
Associate with UNVT_model_info_2 format file
1 Thermostat Model x x x x x x x x x x x x
2 Thermostat Software Version x x x x x x x x x x x x
23 nciHvacType SNVT_hvac_type X X X X X X X X X X X X
24 nciSndHrtBt SNVT_time_sec X X X X X X X X X X X X
25 nciMinOuttM SNVT_time_sec X X X X X X X X X X X X
26 nciRcvHrtBt SNVT_time_sec X X X X X X X X X X X X
27 nciMajVer SCPT_maj_ver X X X X X X X X X X X X
28 nciMinVer SCPT_min_ver X X X X X X X X X X X X

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No
Sub
Point Name
Snivet Type
Enumeration and
Signature Type t
VT7200C5x28E
VT7200F5x28E
VT7300A5x28E VT7300C5x28E VT7350C5x28E VT7305A5x28E VT7305C5x28E VT7355C5x28E
VT7300F5x28E VT7350F5x28E VT7305F5x28E VT7355F5x28E
21 nciCfg1FcuZn UNVT_cfg_1_fcu_zn X X X X X X X X X X X X
Associate with UNVT_cfg1_fcu_zn format file
1 password Unsigned-Long x x x x x x x x x x x x
2 control_type Enumeration Set Used:
clrl_type_t x N/A N/A x x N/A x x N/A N/A N/A N/A
3 floating_actuator_time Unsigned-Short x N/A x x x x x x N/A N/A N/A N/A
4 cycles_per_hour Unsigned-Short N/A N/A x x x x x x N/A N/A N/A N/A
5 reverse_or_direct_acting_output Enumeration Set Used:
da_ra_type_t N/A x N/A N/A N/A N/A N/A N/A x x x x
6 menu_scroll Enumeration Set Used:
scroll_type_t x x x x x x x x x x x x
7 auto_mode Enumeration Set Used:
off_on_state_t N/A N/A x x x x x x x x x x
8 temperature_scale Enumeration Set Used:
temp_unit_t x x x x x x x x x x x x
9 pipe_number_main_out_config Enumeration Set Used:
pipe_system_t x x x x x x x x x x x x
10 sequence_of_operation Enumeration Set Used:
seq_operation_t x x x x x x x x x x x x
11 fan_menu_sequence Enumeration Set Used:
fan_sequence_t N/A N/A x x x x x x x x x x
12 heat_maximum_setpoint SNVT_temp_p x x x x x x x x x x x x
13 cool_minimum_setpoint SNVT_temp_p x x x x x x x x x x x x
14 calib_room_sensor SNVT_temp_diff_p x x x x x x x x x x x x
15 deadband Unsigned-Short x x x x x x x x x x x x
16 setpoint_type Enumeration Set Used:
permanent_temporary_t x x x x x x x x x x x x
17 setpoint_function Enumeration Set Used:
setpts_func_t N/A N/A x x x x x x x x x x
18 temporary_occ_time Unsigned-Short x x x x x x x x x x x x
19 proportional_band Unsigned-Short x x x x x x x x x x x x
20 aux_contact_config Enumeration Set Used:
aux_contact_model_a_t x x x x x x x x x x x x
21 reheat_time_base Enumeration Set Used:
reheat_option_t x x x x x x x x x x x x
22 fan_mode Enumeration Set Used:
fan_mode_t N/A N/A x x x x x x x x x x
23 auto_fan Enumeration Set Used:
auto_fan_t N/A N/A x x x x x x x x x N/A
24 pir_standby_time Unsigned-Short x x x x x x x x x x x x
25 pir_unoccupied_time Unsigned-Short x x x x x x x x x x x x
22 nciSccModel UNVT_model_number X X X X X X X X X X X X
1 Thermostat Model x x x x x x x x x x x x
2 Software Version x x x x x x x x x x x x
23 nciHvacType SNVT_hvac_type X X X X X X X X X X X X
24 nciSndHrtBt SNVT_time_sec X X X X X X X X X X X X
25 nciMinOuttM SNVT_time_sec X X X X X X X X X X X X
26 nciRcvHrtBt SNVT_time_sec X X X X X X X X X X X X
27 nciMajVer SCPT_maj_ver X X X X X X X X X X X X
28 nciMinVer SCPT_min_ver X X X X X X X X X X X X

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Input Network Variables (nvi’s) Description
Parameter Variable Name Function
Room
Temperature network input SNVT_temp_p
nviSpaceTemp
¾This input network variable provides a network remote temperature
value to the thermostat. When linked of written to, the internal
temperature reading (internal sensor) is no longer used.
¾Valid Range: 40 to 122°F (-40 to 50°C)
¾Default Null (release) Value: 621.81°F (327.67°C or 0x7FFF)
¾This network variable is subject to the Receive HeartBeat Time,
nviRcvHrtBt.
Outdoor Air
Temperature network input SNVT_temp_p
nviOutdoorTemp
¾This input network variable provides outdoor air temperature
information to the thermostat from a network value temperature
value. The device will automatically display the value on its display
when linked.
¾Valid Range: 40 to 122°F (-40 to 50°C)
¾Default Null (release) Value: 621.81°F (327.67°C or 0x7FFF)
Occupied
Cool & Heat
Setpoints
network Input
SNVT_temp_p
nviSetpoint
¾This input network variable is used to allow the occupied
temperature setpoints only to be changed via the network from a
single analog value. (Note: the Stand-By and Unoccupied setpoints
are not changed). The corresponding heating and cooling values
are derived from the minimum deadband configuration value
¾Default Null Value: 621.81°F (327.67°C or 0x7FFF)
¾Ex. If the minimum deadband configuration value = 2 °F and
nviSetpoint = 70°F.
•The resulting Occupied heating setpoint will equal 69 °F which is
derived from 70 °F minus ½ the minimum deadband configuration
value of 2 °F
•The resulting Occupied cooling setpoint will equal 71 °F which is
derived from 70 °F plus ½ the minimum deadband configuration
value of 2 °F
Room
Humidity network input SNVT_lev_percent
nviSpaceRH
¾This input network variable is the measured room humidity in
percent monitored by the thermostat.
¾Valid Range: 5 to 90%
¾Default Null Value: +163.835 (0x7FFF)
¾This network variable is subject to the Receive HeartBeat Time,
nviRcvHrtBt

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Parameter Variable Name Function
¾This input network variable is used to connect an external fan
speed switch to the node or to allow any supervisory device to
override the fan speed controlled by the node’s control algorithm.
¾This input is used in conjunction with FanMenu bit in nciGenOpts.
¾Default Null Value: AUTO (state = 0xFF)
¾Valid Range:
Fan
Menu
Value
State Value Equivalent
Percent Requested Speed
0 N/A N/A Off - Not Used
1 0 0% Off - Not Used
1 1 to 66 0.5 to 33% Low
1 67 to 133 33.5 to 66.5% Medium
1 134 to 200 67 to 100% High
1 201 to 255 100% 3 – Not Used
0
0xFF N/A N/A Auto – Not Used
0 n/ N/A Off – Not Used
1 0 0% Off – Not Used
1 0 to 100 0.5 to 50% Low
1 101 to 200 50.5 to 100% High
1 201 to 255 100% 2 – Not Used
1
0xFF N/A N/A Auto – Not Used
0 N/A N/A Off - Not Used
1 0 0% Off - Not Used
1 1 to 66 0.5 to 33% Low
1 67 to 133 33.5 to 66.5% Medium
1 134 to 200 67 to 100% High
1 201 to 255 100% 3 – Not Used
2
0xFF N/A N/A Auto
0 n/ N/A Off – Not Used
1 0 0% Off – Not Used
1 0 to 100 0.5 to 50% Low
1 101 to 200 50.5 to 100% High
1 201 to 255 100% 2 – Not Used
3
0xFF N/A N/A Auto
0 n/ N/A Off – Not Used
1 0 0% Off – Not Used
1 1 to 200 0.5 to 100% On (High)
1 201 to 255 100% On – Not Used
Fan Mode network input
SNVT_switch
nviFanSpeedCmd
4
0xFF N/A N/A Auto
¾This input network variable is used to enable or disable the
auxiliary heat stage.
¾This input is used in conjunction with nviHeatCool and SeqOper.
¾Default Null Value: AUTO (state = 0xFF)
¾Set value to 100% for both On & Off state
¾Valid Range:
State Value Auxiliary Heat Operation
0 N/A Disabled – Not Used
1 0 % Disabled
1 1 to 99% Partially Enabled – Not Used
1 100% Enabled
Sequence of
Operation network input SNVT_switch
nviAuxHeatEnable1
See note 1 below
0xFF N/A Enabled (invalid)

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Parameter Variable Name Function
¾This input network variable is used to command the Space
Comfort Controller into different occupancy modes. It is typically
set by a supervisory node to remotely control the occupancy
modes to override the local occupancy routines of the thermostat.
¾Default Null Value: OC_NUL = 0xFF
¾Valid Range:
0 = OC_OCCUPIED *
1 = OC_UNOCCUPIED )
2 = OC_BYPASS – Not Used
3 = OC_STANDY – Not Used
Occupancy
Command network input SNVT_occupancy
nviOccManCmd
0xFF = OC_NUL (Release to internal occupancy)**
* OC_OCCUPIED and OC_UNOCCUPIED commands will
always have full authority over the local occupancy routines
of the thermostat may they be a local input or a PIR cover.
** OC_NUL command will release the thermostat to use its
own internal occupancy routine driven from one of the digital
input or a PIR cover installed on board.
¾This network variable input is used to coordinate the Space
Comfort Controller with any node that may need to control the
heat/cool changeover of the unit.
¾This input is used in conjunction with nviHeatCool and SeqOper.
¾Default Null Value: HVAC_AUTO.
¾This network variable is subject to the receive heartbeat time,
nciRcvHrtBt
¾Valid Range:
0 = HVAC_AUTO
1 = HVAC_HEAT
2 = HVAC_MRNG_WRMUP – Not Used
3 = HVAC_COOL
4 = HVAC_NIGHT_PURGE – Not Used
5 = HVAC_PRE_COOL – Not Used
6 = HVAC_OFF
7 = HVAC_TEST – Not Used
8 = HVAC_EMERG_HEAT – Not Used
9 = HVAC_FAN_ONLY – Not Used
12 = HVAC_MAX_HEAT – Not Used
13 = HVAC_ECONOMY – Not Used
14 = HVAC_DEHUMID – Not Used)
15 = HVAC_CALIBRATE – Not Used)
System Mode network input
SNVT_hvac_mode
nviApplicMode
0xFF = HVAC_NUL – Not Used

11
Parameter Variable Name Function
¾This network variable input is used to coordinate the Space
Comfort Controller with any node that may need to control the
heat/cool changeover of the unit. This input is overridden by
nviApplicMode, unless nviApplicMode is HVAC_AUTO. If
nviApplicMode is HVAC_AUTO, then nviHeatCool determines the
effective mode of the unit.
¾Default Null Value: HVAC_AUTO.
¾This network variable is subject to the receive heartbeat time,
nciRcvHrtBt
¾Valid Range:
0 = HVAC_AUTO
1 = HVAC_HEAT
2 = HVAC_MRNG_WRMUP – Not Used
3 = HVAC_COOL
4 = HVAC_NIGHT_PURGE – Not Used
5 = HVAC_PRE_COOL – Not Used
6 = HVAC_OFF
7 = HVAC_TEST – Not Used
8 = HVAC_EMERG_HEAT – Not Used
9 = HVAC_FAN_ONLY – Not Used
12 = HVAC_MAX_HEAT – Not Used
Sequence of
operation network input SNVT_hvac_mode
nviHeatCool1
See note 1 below 0xFF = HVAC_NUL – Not Used
¾This network variable input is used to enable or disable user
access to thermostat
¾Default Null Value: Level 0.
¾Valid Range:
Level Occupied
Temperature
Setpoints
System
Mode
Settings
Fan Mode
Settings Unoccupied Override
0 Yes access Yes access Yes access Yes access
1 Yes access Yes access Yes access No access
2 Yes access No access No access Yes access
3 Yes access No access No access No access
4 No access No access No access Yes access
Remote
Lockout network input SNVT_count
nviRemLockout
5 No access No access No access No access
¾This network variable input is used to enable or disable
dehumidification
¾Default Null Value: Dehumidification not allowed
¾Set value to 100% for both On & Off state
¾Valid Range:
State =0 = Dehumidification not allowed
(Thermostat’s default value)
Dehumidificati
on Lockout network input SNVT_switch
nviDhumiLCK
State = 1 = Dehumidification allowed
¾This network variable input is used remotely command the
Auxiliary Output (BO5).
NOTE Auxiliary Contact configuration NEEDS to be set to 5 for this
function to operate ( 5 = Output to follow secondary network
occupancy command )
¾Set value to 100% for both On & Off state
¾Default Null Value: Auxiliary contact Off
¾Valid Range:
State = 0 = Auxiliary contact Off (Thermostat’s default value)
Auxiliary
Contact
Remote
Control
network input
SNVT_switch
nviAuxOut
State = 1 = Auxiliary contact On

12
Output Network Variables (nvo’s) Description
All output network variables will be updated no faster than the Minimum Send Time (nciMinOutTm) configuration
value.
An output network variable will be transmitted immediately when its value has changed significantly
(manufacturer’s defined). 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.
Parameter Variable Name Function
Room
Temperature network output SNVT_temp_p
nvoSpaceTemp
¾This output network variable is used to monitor the effective space
temperature sensor that the Space Comfort Controller is using for
control. This output echoes the value of the input.
¾Valid Range: 14 to 122°F (-10 to 50°C)
¾The value 621.07°F (327.67°C or 0x7FFF) will be sent as an
invalid value in case of a sensor failure.
Supply
Temperature network output SNVT_temp_p
nvoDischAirTemp
¾This output network variable is used to monitor the temperature of
the air that leaves the Space Comfort Controller
NOTE: UI3 needs to be configured to (SS) Supply air sensor
monitoring
¾Valid Range: -40 to 122°F (-40 to 50°C)
¾The value 621.81°F (327.67°C or 0x7FFF)will be sent as an invalid
value in case of a sensor failure.
Room
Humidity network output SNVT_lev_percent
nvoSpaceRH
¾This output network variable indicates the space humidity in
percent.
¾Valid Range: 0 to 100%.
¾The value 0x7FFF = +163.835% will be set as an invalid value to
indicate a humidity sensor failure.
¾This output network variable is used to indicate the actual
occupancy mode of the unit. This information is typically reported
to a supervisory controller or provided to another Space Comfort
Controller to coordinate the operation of multiple units
¾Valid Range:
0 = OC_OCCUPIED
1 = OC_UNOCCUPIED
2 = OC_BYPASS1
Effective
Occupancy network output SNVT_occupancy
nvoEffectOccup
3 = OC_STANDBY
Note 1: OC_BYPASS can be initiated by either nviOccManCmd or a
local input. NvoEffectOccup will only be in OC_BYPASS for the
duration of the ToccTime (nciGenOpts), until reinitiated by either a
transition of the local input or an update to nviOccManCmd.
¾This output network variable is available to report the Space
Comfort Controller status. It combines the operating mode, the
capacity of heating and cooling used and an indication if any
alarms are present in the object.
Sub Name Valid Value
01 mode HVAC_AUTO
HVAC_HEAT
HVAC_MRNG_WRMUP – Not Used
HVAC_COOL
HVAC_NIGHT_PURGE – Not Used
HVAC_PRE_COOL – Not Used
HVAC_HVAC_OFF
HVAC_HVAC_TEST – Not Used
Unit Status
network
output
SNVT_hvac_status
nvoUnitStatus
HVAC_HVAC_EMERG_HEAT – Not Used

13
Parameter Variable Name Function
Sub Name Valid Value
HVAC_FAN_ONLY – Not Used
HVAC_MAX_HEAT – Not Used
02: heat_output
_primary 0-100%, 0x7FFF (Invalid)
03 heat_output
_secondary Not Used
04 cool_output: 0-100%, 0x7FFF (Invalid)
05 econ_output
Not Used
06 fan_output 0-100%, 0x7FFF (Invalid)
07 In_alarm 0 (No alarms)
1 (Alarm On)
Unit Status
network
output
SNVT_hvac_status
nvoUnitStatus
0x7FF (Alarming disabled) – Not Used
¾This network variable output is used to report the Space Comfort
Controller inputs’ and outputs’ status.
Sub Name Valid value True Bit Index
01 bi1 status 0 = activated
1 = not activated 2
02 bi2 status 0 = activated
1 = not activated 1
03 ui3 status 0 = activated
1 = not activated 0
04 dehumidification
active 0 = Off 1 = On 7
05 state terminal bo1 0 = Off
1 = On 13
06 state terminal bo2 0 = Off
1 = On 12
07 state terminal bo3 0 = Off
1 = On 15
08 state terminal bo4 0 = Off
1 = On 14
09 state terminal bo5 0 = Off
1 = On 20
10 fan low 0 = Off
1 = On 21
11 fan med 0 = Off
1 = On 22
12 fan high 0 = Off
1 = On 23
13 window opened 0 = No alarm
1 = Alarm on 24
14 service alarm 0 = No alarm
1 = Alarm on 28
15 filter alarm 0 = No alarm
1 = Alarm on 29
Thermostat’s
I/O status network output UNVT_thermo_
state_fc
nvoSccStatus
16 local pir motion 0 = No motion
1 = Motion 39
Heating/
Cooling
demand
network output
SNVT_lev_percent
nvoTerminalLoad
¾This output indicates the current heat/cool energy demand of the
unit. Positive values indicate that cooling energy is in use by the
space comfort controller, while negative values indicate that
heating energy is in use by the space comfort controller.
¾Valid Range: -100% to 100%

14
Configuration Properties (nci’s) Description
Parameter Variable Name Function
¾This configuration property defines the space temperature
setpoints for various heat, cool and occupancy modes.
¾Valid Range and Default values:
Sub Name Valid Range Default value
01 occupied_cool 54 to 100°F
(12 to 37.5°C) 75°F (24.0°C)
02 standby_cool 54 to 100°F
(12 to 37.5°C) 78°F (25.5°C)
03 unoccupied_cool 54 to 100°F
(12 to 37.5°C) 80°F (26.5°C)
04 occupied_heat 40 to 90°F
(4.5 to 32°C) 72°F (22.0°C)
05 standby_heat 40 to 90°F
(4.5 to 32°C) 69°F (20.5°C)
Temperature
Setpoints network input config
SNVT_temp_setpt
nciSetPts
06 unoccupied_heat 40 to 90°F
(4.5 to 32°C) 62°F (16.5°C)
¾This configuration property defines the space humidity parameters
and their settings.
¾Valid Range and Default values:
Sub Name Valid Range Default value
01 bi1 config 0 = None
1 = Rem NSB
2 = Motion NO
3 = Motion NC
4 = Window
0 = None
02 bi2 config 0 = None
1 = Door Dry
2 = Override
3 = Filter
4 = Service
0 = None
03 ui3 config 0 = None
1 = COC/NH
2 = COC/NC
3 = COS
4 = SS
0 = None
04 room humidity display 0 = Not active
1 = Active 0 = Not active
05 dehumidification
setpoint 30 to 100% RH 50% RH
06 dehumidification
hysterisys 2 to 20% RH 5% RH
07 dehumidification max
cooling 20 to 100% RH 100% RH
RH Model
Options network input config
UNVT_cfg_2_fcu_zn
NciCfg2FcuZn
08 calib room humidity
sensor -15 to +15% RH 0% RH

15
Parameter Variable Name Function
¾This configuration property defines the thermostat’s common
configuration parameters and their settings.
¾Valid Range and Default values:
Sub Name Valid Range Default value
01 password 0 to 1000 0
02 control type 0 = On/Off Control
1 = Floating Control 0 = On/Off Control
03 floating actuator time 0.5 to 9 minutes (0.5
increments) 1.5 minutes
04 cycles per hour 3, 4, 5, 6, 7 and 8
CPH 4 CPH
05 reverse or direct acting
output 0 = Direct Acting (DA) 1 = Reverse Acting
(RA)
0 = Direct
Acting (DA)
06 temperature scale 0 = °C
1 = °F °F
07 auto mode 0 = Not Active
1 = Active 1 = Active
08 temperature scale 0 = °C
1 = °F °F
09 pipes number main out
config 2 = 2 pipe 4 = 4 pipe 4 pipe
10 sequence of operation
0 = Cooling Only 1 = Heating Only
2 = Cooling & Reheat
3 = Heating & Reheat
4 = Cooling/Heating 4
pipes
5 = Cooling /Heating
4 pipes & Reheat
1 = Heating
Only
11 fan menu 0 = Low-Med-High
1 = Low-High
2 = Low-Med-High-
Auto
3 = Low-High-Auto
4 = On-Auto
4 = On-Auto
12 heat maximum
setpoint 40 to 90°F (4.5 to 32°C) 90°F (32°C)
13 cool minimum
setpoint 54 to 100°F (12 to 37.5°C) 54°F (12°C)
14 calib room sensor ± 5°F (±2.5°C) 0°C
15 deadband 2, 3, 4 or 5 °F
(1 to 2.5°C) 2°F (1°C)
16 setpoint type 0 = Permanent
1 = Temporary 0
17 setpoint function 0 = Dual Setpoints
1 = Attached
Setpoints
0 = Dual
Setpoints
Thermostat
Common
Configuration
Parameters
network input config
UNVT_cfg_1_fcu_zn
nciCfg1FcuZn
18 temporary occ time 0, 1, 2, 3, up to 24
hours 2 hours

16
Parameter Variable Name Function
¾This configuration property defines the thermostat’s common
configuration parameters and their settings.
¾Valid Range and Default values:
Thermostat
Common
Configuration
Parameters
network input config
UNVT_cfg_1_fcu_zn
nciCfg1FcuZn Sub Name Valid Range Default value
19 proportional band 3 to 10 F 3 F
20 aux contact config 0 = Aux Contact used
for reheat
1 = Aux NO with
occupancy
2 = Aux NC with
occupancy
3 = Aux NO with
occupancy & Fan
On
4 = Aux NC with
occupancy & Fan
On
5 = Remote control
nviAuxOut
0
21 reheat time base 0 = 15 minutes
1 = 10 seconds 0
22 fan mode 0 = Low
1 = Med
2 = High
3 = Auto
4 = On
Depending on
Fan Menu
Selected
23 auto fan 0 = Auto Speed
1 = Auto Speed and
Auto Demand
0 = Auto
Speed
24 pir stand-by timer 0.5 to 24.0 Hours 0.5 Hours
25 pir unoccupied timer 0.0 to 24.0 Hours 0.0 Hours

17
Parameter Variable Name Function
¾This configuration property defines model number and software
version of the thermostat
¾Valid Range and Default values:
Sub Name Valid Range Default value
01 Thermostat
Model 60 = VT7200C 61 = VT7200F
41 = VT7300A
42 = VT7305A
43 = VT7350C
44 = VT7300C
45 = VT7355C
46 = VT7305C
47 = VT7350F
48 = VT7300F
49 = VT7355F
50 = VT7305F
Depend on model
being used
Thermostat’s
model number network input config UNVT_model_info_2
nciSccModel
02 Software
Version Unsigned short Thermostat dependent
¾This configuration property helps the user identify the type of
equipment being monitored.
¾Valid Range:
Sub Identifier Name
HVAC Unit-
Type Identifier network input config SNVT_hvac_type
nciHvacType
0
1
2
3
4
5
6
7
8
9
HVT_GENERIC – Not Used
HVT_FAN_COIL
HVT_VAV – Not Used
HVT_HEAT_PUMP– Not Used
HVT_ROOFTOP – Not Used
HVT_UNIT_VENT – Not Used
HVT_CHIL_CEIL – Not Used
HVT_RADIATOR – Not Used
HVT_AHU – Not Used
HVT_SLF_CONT – Not Used
Generic
Fan Coil
Variable Air Volume Terminal
Heat Pump
Rooftop Unit
Unit Ventilator
Chilled Ceiling
Radiator
Air Handling Unit
Self-Contained Unit
Maximum
Send Time network input config
SNVT_time_sec
nciSendHrtBt
¾This configuration property defines the maximum period of that
expires before the specified network variable outputs will
automatically be updated
¾Valid Range: 0 sec. to 6553.4 sec.. Setting nciSendHrtBt to 0
disables the Send Heartbeat mechanism.
¾Default Null Value : 0.0 sec (no automatic update)
Minimum
Send Time network input config SNVT_time_sec
nciMinOutTm
¾This configuration property defines the minimum period of time
between automatic network variable outputs transmissions.
¾Valid Range: 0 sec. to 6553.4 sec.. Setting nciRcvHrtBt to 0
disables the Minimum Send Time mechanism.
¾Default Null Value : 0.0 sec (no minimum send time)
Minimum
Receive Time network input config SNVT_time_sec
nciRcvHrtBt
¾This configuration property is used to control the maximum time
that elapses after the last update to a specified network variable
input before the Space Comfort Controller starts to use its default
values.
¾Valid Range: 0 sec. to 6553.4 sec.. Setting nciRcvHrtBt to 0
disables the Receive Heartbeat mechanism.
¾Default Null Value : 0.0 sec (no failure detected)
Hardware or
Software
revisions
network input config
SCPT_maj_ver
nciMajVer
¾This configuration property defines the major module hardware
and software revisions.
¾Valid Range: 0 to 255
Hardware or
Software
revisions
network input config
SCPT_min_ver
nciMinVer
¾This configuration property defines the minor module hardware
and software revisions.
¾Valid Range: 0 to 255

18
Note 1:
How to use nviHeatCool, nviAuxHeatEnable and SeqOpera (Sequence of Operation) variables:
Current
nviHeatCool NviAuxHeat Enable =
Enabled
NviAuxHeat
Enable =
Disabled
Current SeqOpera If nviHeatCool
changed to: New SeqOpera
2 Pipe Application
3 = HVAC_COOL X 0 = Cooling Only 1= HVAC_HEAT 1 = Heating Only
3 = HVAC_COOL X 2 = Cooling & Reheat 1= HVAC_HEAT 3 = Heating & Reheat
1 = HVAC_HEAT X 1 = Heating Only 3= HVAC_COOL 1 = Cooling Only
1 = HVAC_HEAT X 3 = Heating & Reheat 3= HVAC_COOL 2 = Cooling & Reheat
4 Pipe Application
3 = HVAC_COOL X 0 = Cooling Only 0= HVAC_AUTO
1= HVAC_HEAT 4 = Cool/Heat 4 Pipes 1 = Heating Only
3 = HVAC_COOL X 2 = Cooling & Reheat 0= HVAC_AUTO
1= HVAC_HEAT 5 = Cool/Heat 4P & Reheat 3 = Heating & Reheat
1 = HVAC_HEAT X 1 = Heating Only 0= HVAC_AUTO
3= HVAC_COOL 4 = Cool/Heat 4 pipes 1 = Cooling Only
1 = HVAC_HEAT X 3 = Heating & Reheat 0= HVAC_AUTO
3= HVAC_COOL 5 = Cool/Heat 4P & Reheat 2 = Cooling & Reheat
0 = HVAC_AUTO X 4 = Cool/Heat 4 Pipes 1= HVAC_HEAT
3= HVAC_COOL 1 = Heating Only 0 = Cooling Only
0 = HVAC_AUTO X
5 = Cool/Heat 4P &
Reheat 1= HVAC_HEAT 3= HVAC_COOL 3 = Heating & Reheat 2 = Cooling & Reheat

19
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 VT7300 series tstat

20
VT7200X Integration – Graphic User Interface (GUI) objects
The following objects should be typically used in a GUI:
¾nvoSpaceTemp;
¾occupied_heat (nciSetpts);
¾unoccupied_heat (nciSetpts);
¾occupied_cool (nciSetpts);
¾unoccupied_cool (nciSetpts);
¾nvoOutdoorTemp
¾nvoDischAirTemp
¾nvoEffectOccup;
¾heat_output_primary (nvoUnitStatus)
¾cool_output (nvoUnitStatus)
¾nvoTerminalLoad
¾ServiceAlarm (nvoSccStatus)
¾FilterAlarm (nvoSccStatus)
¾WindowOpened (nvoSccStatus)
Graphical User Interface (GUI) example of a zoning thermostat