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VT7607
User Manual
23 pgs1.68 Mb0
Installation Guide
36 pgs1.29 Mb0
User Manual
22 pgs559.94 Kb0

Viconics VT7607 Installation Guide

CONTENTS
Installation 2
Location 2 Installation 2
Theory of operation 3
Features overview 4
Model Chart 5
Network ready 6
Terminal, Identification and Function 6
Wiring 6 Screw terminal arrangement 7
Typical applications 8
Remote humidity sensor accessories 9
Configuring and Status Display Instructions 10
Status display 10
User Interface 12
User configuring instructions menu 12 Local keypad interface 13 Occupied setpoints adjustments 14 Dehumidification process 16
Installer Configuration Parameter Menu 21 Troubleshooting guide 32 Humidity Control 34
Humidity reset 34 High limit humidity sensor 34
Specifications 35 Drawing & Dimensions 36
1 | PIR Ready VT76x7 Series-Installation Guide
INSTALLATION
Remove the security screw on the bottom of Terminal Equipment Controller cover.
Open unit by pulling on the bottom
side of Terminal Equipment Controller (fig. 1).
Remove wiring terminals from sticker. Please read the FCC ID and IC label
installed in the cover upon removal of cover for the wireless products.
Location
1. Should not be installed on an outside wall.
2. Must be installed away from any direct heat source.
3. Should not be installed near an air discharge grill.
4. Should not be affected by direct sun radiation.
5. Nothing should restrict vertical air circulation to the Terminal Equipment Controller.
Installation
1. Swing open the Terminal Equipment Controller PCB to the left by pressing the PCB locking tabs (fig. 2).
2. Pull out cables 6” out from the wall.
3. Wall surface must be flat and clean.
4. Insert cable in the central hole of the base.
5. Align the base and mark the location of the two mounting holes on the wall. Install proper side of base up.
6. Install anchors in the wall.
7. Insert screws in mounting holes on each side of the base (fig. 2).
8. Gently swing back the circuit board on the base and push on it until the tabs lock it.
9. Strip each wire 1/4 inch from end.
10. Insert each wire according to wiring diagram.
2 | PIR Ready VT76x7 Series-Installation Guide
11. Gently push excess wiring back into hole (fig. 3).
If replacing an existing Terminal Equipment Controller, label the wires
before removal of the Terminal Equipment Controller.
Electronic controls are static sensitive devices. Discharge yourself
properly before manipulating and installing the Terminal Equipment Controller.
A short circuit or wrong wiring may permanently damage the Terminal
Equipment Controller or the equipment.
All VT7000 series Terminal Equipment Controllers are designed for use
as operating controls only and are not safety devices. These instruments have undergone rigorous tests and verification prior to shipping to ensure proper and reliable operation in the field. Whenever a control failure could lead to personal injury and/or loss of property, it becomes the responsibility of the user / installer / electrical system designer to incorporate safety devices (such as relays, flow switch, thermal protections, etc…) and/or an alarm system to protect the entire system against such catastrophic failures. Tampering with the devices or unintended application of the devices will result in a void of warranty.
12. Re-Install wiring terminals in their correct locations (fig. 3).
13. Re-install the cover (top side first) and gently push extra wire length back into the hole in the wall.
14. Install security screw.
THEORY OF OPERATION
The VT7600 uses a Viconics 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 Terminal Equipment Controllers.
Fig.2 - On/Off mechanical control vs. PI electronic control.
3 | PIR Ready VT76x7 Series-Installation Guide
Features overview
7 day schedule models, 2 or 4 events
Gas/oil or electric system compatibility for all type of applications Internal RH sensor and remote RH input with humidification and dehumidification
sequence of operation embedded
Remote outdoor sensing capability for added flexibility
- System mode lock out
- Humidity setpoint reset
High limit input to prevent over-humidification Lockable keypads for tamper proofing. No need for Terminal Equipment Controller
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.
Configurable digital input for added flexibility. The input can be configured as the
following:
None: No function will be associated with the input Service: a backlit flashing Service alarm will be displayed on the Terminal
Equipment Controller LCD screen when the input is energized. It can be tied in to the AC unit control card, which provides an alarm in case of malfunction.
Filter: a backlit flashing Filter alarm will be displayed on the Terminal
Equipment Controller LCD screen when the input is energized. It can be tied to a differential pressure switch that monitor filters
Rem NSB: remote NSB timer clock input. Will disable the internal scheduling of
the Terminal Equipment Controller. The scheduling will now be set as per the digital input. The menu part related to scheduling is disabled and no longer accessible. It provides low cost setback operation via occupancy sensor or from a dry contact
RemOVR: temporary occupancy contact. Disables all override menu function of
the Terminal Equipment Controller. . The override function is now controlled by a manual remote momentarily closed contact. When configured in this mode, the input operates in a toggle mode.
With this function enabled it is now possible to toggle between unoccupied &
occupied setpoints for the amount of time set by parameter (TOccTime) temporary occupancy time.
Fan lock: used in conjunction with a local air flow sensor connected to the input.
Locks out the Terminal Equipment Controller heating and cooling action and displays a local alarm if no air flow is detected 10 seconds after the fan (G terminal) is energized.
Configurable 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 scheduling models for lighting, exhaust fan or
fresh air control
6 hour typical reserve time for clock in case of power loss  Built in proportional humidity Terminal Equipment Controller  Proportional humidity high limit when used with the analog input for supply humidity  Automatic humidity setpoint reset when outside air temperature value is used.
4 | PIR Ready VT76x7 Series-Installation Guide
MODEL CHART
5 | PIR Ready VT76x7 Series-Installation Guide
Network ready
Part Number
VT7657B5x00(X)
VT7607B5x00(X)
Schedule
Yes
No
Top left terminal block
Y2 X X
Y1 X X G X X RC X X C X
X
Top right terminal block
RH X X
W1 X X
W2 X X
Bottom terminal block
HUM X X
AUX X X
DEHUM
X X DI X X
HS X X
SCOM X X
OS X X
HL X X
All Viconics VT76x7 series Terminal Equipment Controllers are designed for
stand-alone (Network Ready) operation.
They can be fully integrated into your choice of automation systems using the
available communication adapter options.
If required, stand-alone (Network Ready) Terminal Equipment Controllers can be
field retrofitted with the following communication adapters:
o VCM7607V5000B, Terminal Equipment Controller BACnet™ MS-TP®
communication adapter
o VCM7607V5000E, Terminal Equipment Controller Echelon™
LonTalk® communication adapter
o VCM7000V5000W Terminal Equipment Controller wireless Zigbee™
communication adapter
TERMINAL, IDENTIFICATION AND FUNCTION
Wiring
6 | PIR Ready VT76x7 Series-Installation Guide
Screw terminal arrangement
HM
AU
DH
DI
HS
Scom
OS
HL
Y2
Y1 G RC
C
RH
W1
5 pole left top connector
3 pole left top connector
8 pole bottom connector
W2
Wiring notes: Note 1: If the same power source is used for the heating stages, install jumper across RC &
RH. Maximum current is 2.0 amps.
Note 2: If auxiliary output is used to toggle occupancy of the electronic control card inside
the equipment, configure the relay parameter (Aux cont ) to the N.O. setting. A second relay can be added for additional functionality of the occupancy output.
Note 3: Humidifier output uses a half bridge rectifier. Reference of the control signal is the
common of the power supply of the Terminal Equipment Controller. (Terminal C)
Note 4: Electromechanical contacts are to be used with the digital inputs. Electronic triacs
cannot be used as mean of switching for the input. The switched leg to the input for the input to activate is terminal C (common)
Note 5: The transformer of the unit provides power to the t Terminal Equipment Controller
and the additional loads that will be wired to the Terminal Equipment Controller.
7 | PIR Ready VT76x7 Series-Installation Guide
TYPICAL APPLICATIONS
8 | PIR Ready VT76x7 Series-Installation Guide
Remote humidity sensor accessories
Model no.
Description
VH2020W1000
Wall mounted humidity sensor
VH2020D10000
Duct mounted humidity sensor
Wiring example of remote room
humidity sensor:
Wiring example of duct humidity
sensor:
VH2020W1000, remote wall mounted room humidity
sensor. This sensor can be used for: Remote return or room air humidity sensing
with the sensor mounted on the wall.
VH2020D1000, remote duct mounted humidity sensor c/w junction box. This sensor can be used for: Remote return air humidity sensing with the sensor
mounted on the return air duct.
Supply air humidity sensor used as high limit
protection
VH2020W1000
VH2020W1000
9 | PIR Ready VT76x7 Series-Installation Guide
User menu flow chart:
Sc h e d u l e s e t ? Y/ N
Sy s mo d e s e t ? Y/ N
Cl o c k s e t ? Y/ N
T e mpe r a t s e t ? Y/ N
Sc h e d u l e h ol d Y/ N
Ex i t ? Y/N
Un o c c HT s e t ? Y/ N
° F / ° C s e t ? Y/ N
He a t i n g s e t ? Y/ N
Un o c c CL s e t ? Y/ N
Co o l i n g s e t ? Y/ N
°C °F
Temperature Temperature Temperature Temperature
MEN U
1 2 / 2 4 h r s s e t ? Y/ N
12 / 24
T i me s e t ? Y/ N
Time
Da y s e t ? Y/ N
Day
F a n mo d e s e t ? Y/ N
On Smart Auto
Su n d a y s e t ? Y/ N
Sa t u r d a y s e t ? Y/ N
F r i d a y s e t ? Y/ N
T hu r s d a y s e t ? Y/ N
Wed n e s d a s e t ? Y/ N
T ue s d a y s e t ? Y/ N
Mond a y s e t ? Y/ N
Ex i t ? Y/N
Oc c u p i e d d a y ? Y / N
Oc c u p i e d 1 2 : 0 0 pm
Time
Un o c c up 1 2 : 0 0 pm
Time
Oc c u p i e d d a y ? Y / N
Oc c u p i e d 1 2 : 0 0 pm
Time
Un o c c up 1 2 : 0 0 pm
Time
Oc c u p i e d d a y ? Y / N
Oc c u p i e d 1 2 : 0 0 pm
Time
Un o c c up 1 2 : 0 0 pm
Time
Oc c u p i e d d a y ? Y / N
Oc c u p i e d 1 2 : 0 0 pm
Time
Un o c c up 1 2 : 0 0 pm
Time
Oc c u p i e d d a y ? Y / N
Oc c u p i e d 1 2 : 0 0 pm
Time
Un o c c up 1 2 : 0 0 pm
Time
Oc c u p i e d d a y ? Y / N
Oc c u p i e d 1 2 : 0 0 pm
Time
Un o c c up 1 2 : 0 0 pm
Time
Oc c u p i e d d a y ? Y / N
Oc c u p i e d 1 2 : 0 0 pm
Time
Un o c c up 1 2 : 0 0 pm
Time
Resume Occ Hold Uno Hold
Ex i t ? Y/N
Off Heat Cool Auto
Ov e r r i d e s c h d Y / N
Re s u me s c h d Y / N
If sta tus is: Uno ccupied
If sta tus is: Tem porary O ccupie d Time, Occu pied ho ld or Uno ccupied hold
Hu mi d i f i s e t ? Y/ N
De h u mi d i s e t ? Y/ N
RH% RH%
Hu mi d i t y s e t ? Y/ N
Ex i t ? Y/N
Ex i t ? Y/N
On stand-alone models only
NOTE: Prompts may not all be present depending on model selected
CONFIGURING AND STATUS DISPLAY INSTRUCTIONS
Status display
The Terminal Equipment Controller features a two-line, eight-character display. There is a low level backlight level that is always active and can only be seen at night.
When left unattended, the Terminal Equipment Controller has an auto scrolling display that shows the actual status of the system.
Each item is scrolled one by one with the back lighting in low level mode. Pressing any key will cause the back light to come on to high level.
Manual scroll of each menu item is achieved by pressing the Yes (scroll) key repetitively. The last item viewed will be shown on the display for 30 seconds before returning to automatic scrolling. Temperature is automatically updated when scrolling is held.
10 | PIR Ready VT76x7 Series-Installation Guide
Sequence of auto-scroll status display:
ROOM
TEMP & RH
CLOCK
STATUS
SYSTEM
MODE
SCHEDULE
STATUS
OUTDOOR
TEMPERATURE
ALARMS
x.x °C or °F XX % RH
Monday 12:00 AM
Sys mode auto
Occupied
Outdoor x.x °C or°F
Service
Sys mode off
Occupied hold
Frost ON
Sys mode heat
Unoccup SetClock
Sys mode cool
Filter
Sys mode emergency
Fan lock
Frost ON
Indicates that the heating is energized by the low limit frost protection room temperature setpoint 5.6 °C ( 42 °F )
SetClock
Indicates that the clock needs to be reset. There has been a power failure which has lasted longer than 6 hours
Service
Indicates that there is a service alarm as per one of the configurable digital input ( DI1 or DI2 )
Filter
Indicates that the filters are dirty as per one of the configurable digital input ( DI1 or DI2 )
Fan lock
Indicates that the heating and cooling action are locked out due to a defective fan operation
Outdoor air temperature
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 are automatically disabled.
Alarms
If alarms are detected, they will automatically be displayed at the end of the status
display scroll.
During an alarm message display, the back lit screen will light up at the same time as
the message and shut off during the rest of the status display.
Two alarms maximum can appear at any given time.  The priority for the alarms is as follows:
11 | PIR Ready VT76x7 Series-Installation Guide
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