Antec controls VENTURI FX User manual

VENTURI FX
MANUAL v106

VFX - MANUAL
i | VFX – Manual | AntecControls.com
TABLE OF CONTENTS
INTRODUCTION ...............................................................................................................................................................................1
General..........................................................................................................................................................................................1
Safety Precautions ........................................................................................................................................................................1
Product Overview .........................................................................................................................................................................2
Technical Specifications ................................................................................................................................................................2
Airflow Ranges..............................................................................................................................................................................2
GETTING STARTED WITH THE VENTURI FX (VFX)..........................................................................................................................3
Receiving Inspection .....................................................................................................................................................................3
In the Box......................................................................................................................................................................................3
Construction Options ....................................................................................................................................................................4
INSTALLATION & MOUNTING INSTRUCTIONS..............................................................................................................................6
Installing the Venturi FX (VFX) Valve .............................................................................................................................................6
VALVE ACCESSORIES .....................................................................................................................................................................8
Hot Water Coils (VVHWC).............................................................................................................................................................8
Electric Coils (VVEC)....................................................................................................................................................................10
Silencer (VVSIL)...........................................................................................................................................................................12
Valve Companion Connections (VCT)..........................................................................................................................................13
Valve Installation Tape (VIT) ........................................................................................................................................................16
Valve Actuator .............................................................................................................................................................................17
BALANCING ...................................................................................................................................................................................18
Variable Volume VFX ...................................................................................................................................................................18
TROUBLESHOOTING.....................................................................................................................................................................19
Venturi FX Troubleshooting.........................................................................................................................................................19
Electric Coil Troubleshooting.......................................................................................................................................................19
Replacement Parts......................................................................................................................................................................20
Technical Support........................................................................................................................................................................20

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INTRODUCTION
General
In this manual, you will find information regarding:
•Venturi FX (VFX) specifications
•How to install the VFX with Constant Volume, Variable
Volume, and Two Position Switch
•Detailed description of all options available for each setup
Safety Precautions
1. Installation work and electrical wiring must be done by
qualified person(s) in accordance with all applicable
codes and standards, including fire-rated construction.
2. When cutting or drilling into wall or ceiling, do not
damage electrical wiring and other hidden utilities.
3. Use this unit only in the manner intended by the
manufacturer.
4. Before servicing or cleaning unit, switch power off at
service panel and lock service panel to prevent power
from being switched on accidentally.
5. Protect flammable materials nearby when brazing, use
flame and heat protection barriers where needed.
Always have a fire extinguisher ready.
6. The manufacturer assumes no responsibility for
personal injury or property damage resulting from
improper handling, installation, service or operation of
the product.
Caution to Contractors
VFX Valves are not intended for use as temporary heat or
ventilation sources during building construction. The units
are not designed nor equipped to operate in a dusty
construction environment. Internal parts can become coated
in construction dust, resulting in loss of calibration and
excess wear on the product which in turn can contribute to
reduced life.
This mark indicates an important point for
the proper function of the VFX and any of its
accessories. Pay close attention to all
caution points throughout this manual.
CAUTION
For support and in-depth
training on this product and
other associated system
components, please
contact your local Antec
Controls Representative.
For more information visit
www.AntecControls.com

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Product Overview
The Antec Controls Venturi FX Valve (VFX) is designed specifically for room pressure control in healthcare and laboratory
applications. Paired with the maintenance-free, high accuracy Antec Controls Pressure Transducer (PTX) or the Pace™ Critical
Space Controller (PACE) and an actuator, the VFX achieves precise airflow measurement and control for critical environments.
Technical Specifications
Environmental
(Operating)
50°F to 122°F (10°C to 50°C), 5% to 95% R.H. (non-condensing)
Environmental (Storage)
-22°F to 122°F (-30°C to 50°C), 0% to 95% R.H. (non-condensing)
Valve Body
14 Ga Aluminum
Damper Assembly
Uncoated: Two 24 Ga galvanized steel plates and a Teflon gasket mounted on a zinc plated
steel shaft.
Coated: Two 22 Ga 316 stainless stee plates and a Teflon gasket mounted on a 316 stainless
steel shaft.
Pressure Sensor
316 Stainless Steel Tubes
Airflow Ranges
Unit Size
Airflow Range
Kfactor
Minimum CFM (L/s)
Maximum CFM (L/s)
108
80 (38)
800 (378)
600
110
120 (57)
1300 (614)
975
112
180 (85)
1800 (850)
1400
114
250 (118)
2500 (1180)
1985
212
360 (170)
3600 (1700)
2800
214
500 (236)
5000 (2360)
4000
Flow Calculation
The VFX requires a 0 to 2 in.w.c. transducer to measure flow. Using the differential pressure reading (dP), the flow is calculated
using the following equation:
= ∗√
NOTES:
1. Factory calibrated controls must be selected within the above flow range limits. When setting the flow, the value must be
greater than the minimum setting and within the range limits. Selection of air flow below the listed values is not
recommended. Stability and accuracy may not be acceptable at lower than recommended air flow limits.
2. Please refer to the VFX Product Submittals for all dimensional data.

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GETTING STARTED WITH THE VENTURI FX (VFX)
Receiving Inspection
After unpacking the assembly, check carefully for shipping damage. If any damage is found, report it immediately to the
delivering carrier. Damage may result from improper handling.
In the Box
For each of the available controllers the order includes the following components outlined in this section.
Venturi FX (VFX)
The VFX ships with several different components. The components are outlined in this
section for a single VFX.
Component
Quantity
Description
Valve Body
1, 2 or 3
VFX
NOTE: Dual and Triple VAV valves will be shipped
as a ganged assembly.
Green Pressure
Tubing
1
The low-pressure tubing comes with a length of
tubing factory connected to the controller.
Red Pressure
Tubing
1
The low-pressure tubing comes with a length of
tubing factory connected to the controller.
Actuator
1, 2 or 3
The actuator is factory mounted on the mounting
bracket and shaft.
NOTE: Dual and Triple valves will be shipped with 2
and 3 actuators, respectively.
Controller
1
Single controller.
Do not tamper with the linkage assembly as
the valve is shipped factory calibrated.
Never carry or lift the valve by the damper
shafter, flow measuring stations or the
control enclosure.
CAUTION

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Construction Options
Below is an outline of some of the key options that are available when selecting and ordering Venturi FX (VFX). These options
will affect its available flow range, how the valve is installed and under what system conditions it must operate.
See the VFX Product Submittal on AntecControls.com for Specifications and Dimensions of each option shown below.
Valve Size
The VFX is available in the following size options. The size selected below will be a factor in determining the airflow range of
the valve.
8 inches
Model:
Features:
VFX-108
•Available in Single construction only
10 inches
Model:
Features:
VFX-110, VFX-210
•Available in Single and Dual construction
•Dual construction is provided in a welded ganged unit and no additional field assembly is required
12 inches
Model:
Features:
VFX-112, VFX-212
•Available in Single and Dual construction
•Dual construction is provided in a welded ganged unit and no additional field assembly is required
14 inches
Model:
Features:
VFX-114, VFX-214
•Available in Single and Dual construction
•Dual construction is provided in a welded ganged unit and no additional field assembly is required
Connection Type
The connection type of the valve will determine how the valve is installed in the ductwork. See the Installation Instructions
section for more detail on the installation process.
Slip
Model:
Features:
VV-SL
•VFX does not contain any mounting holes
•Single sizes are designed to slip into nominal sized round ductwork
•Dual, Triple and Quad sizes are designed to slip over rectangular ductwork
NOTE: See the Installing the Venturi FX for detailed installation instructions.
Flanged
Model:
Features:
VV-FL
•VFX comes with pre-welded mounting flange
NOTES:
•See the Installing the Venturi FX for detailed installation instructions.
•See the VV Product Submittal for hole pattern and dimensions.

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Coating
The Venturi FX is available in four different protective coating options depending on the application.
Aluminum
Model:
Features:
VFX-AL
Aluminum valve body with Stainless Steel (SS) internal hardware
NOTE: Can be mounted using sheet metal screws.
Phenolic – Class 1
Model:
Features:
VFX-P1
Phenolic coated valve body with Stainless Steel (SS) internal
hardware
Scratches and holes can compromise the coating
NOTE: Do not use sheet metal screws in valve body.

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INSTALLATION & MOUNTING INSTRUCTIONS
Installing the Venturi FX (VFX) Valve
The instructions below detail general installation of a VFX without the use of any valve accessories. When using accessories
with the VFX, please see the appropriate installation detailed for the accessory being used in the Valve Accessories section.
Before Installation
General Installation Notes
1. Ductwork to be supported within eighteen inches (18”) of the Venturi
FX unless otherwise specified.
2. Access doors are not required.
3. Leave eight inches (8”) of free space in all directions of the controls
enclosure to facilitate future access to the controls.
4. During operation, the blade damper of the VFX may extend past the
discharge of the valve. Ensure that a minimum of three inches (3”) of
duct space is clear of any obstacles from the valve discharge.
5. Maximum screw lengths when installing the VFX are seen is the table
below. If this screw length is exceeded, it may impede the rotation of
the damper shaft.
NOTE: Maximum screw length is based on screw distance of ½ in.
from end of the VFX slip connection.
Valve Size
Maximum Screw Length
108
1/2 in.
110
3/8 in.
112
3/8 in.
114
3/8 in.
Enclosure Orientation
Venturi FX controls enclosures may be rotated 360 degrees around the ductwork.
1. Visually inspect the valve for damage
a. Damage to the flow measuring stations in the valve can be
detrimental to performance
b. Damage to the coating on fume hood valves can lead to corrosion
2. Inspect the tamper proof paint on the actuator to ensure it has not been
removed.
3. Ensure the Specification label for the valve matches the intended
installation location.
Enclosure Orientation
In fume hood applications, or in conditions that may cause condensation inside the
ductwork, the enclosure should not be mounted within +/- 90 degrees from straight down.
Do not screw into Phenolic or Kynar
coated valve bodies. Screws will
compromise its resistance to corrosion.
Warranty will be void if screws are
used, excluding mounting slip
connection multi-body valves.
CAUTION

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Slip-Connection Venturi FX (VFX) Mounting Instructions
The instructions below are detailed for Aluminum VFXs only. Do not use screws for Phenolic coated valves.
Flange-Connection Venturi FX (VFX) Mounting Instructions
STEP 1
Mount the VFX by slipping both the inlet and the discharge one inch (1”) into the
appropriately sized ductwork.
STEP 2
Fasten the VFX to the ductwork using six (6) sheet metal screws per slip connection.
STEP 3
Seal the ductwork using duct sealer.
STEP 1
Align the duct flange holes with the VFX flange holes and fasten using a bolt, lock washer
and nut. Fasten every hole to reduce airflow leakage.
NOTE: It is recommended to use a duct sealant or gasket between the valve flange and the
ductwork flange.
Instructions above are for slip valves without
drawband clamps. For information on
installing slip valves with drawband clamps,
please see the Drawband Clamps.
CAUTION
Instructions above are for flanged valves
without companion flanges. For information
on installing flanged valves with companion
flanges, please see the Companion Flanges.
CAUTION

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VALVE ACCESSORIES
Venturi FX (VFX) can function with a variety of different products to control air temperature, decrease noise and improve ease of
installation.
Valve Accessories and Optional Products provided by
Antec Controls include:
1. Hot Water Coils (VVHWC)
2. Electric Coils (VVEC)
3. Silencer (VVSIL)
4. Valve Companion Connections (VCT)
5. Valve Installation Tape (VIT)
6. Valve Actuator
Hot Water Coils (VVHWC)
Hot Water Coils (VVHWC) are devices installed with VFX that control room environment by heating air moving through the
valve. The VVHWC is designed to optimize heat transfer and access doors are available for upstream installation for convenient
maintenance.
Overview
See the VVHWC Product Submittal on AntecControls.com for specifications and dimensions of the options below.
Options
Standard Capacity Hot Water Coil
Model:
Features:
VVHWC-SC
•22 Gauge zinc-coated steel casing
•One to four row construction
•Aluminum fins spaced at 10 fins per inch
High Capacity Hot Water Coil
Model:
Features:
VVHWC-HC
•22 Gauge zinc-coated steel casing
•One or two row construction
•Aluminum fins spaced at 12 fins per inch
Oversized Standard Capacity Hot Water Coil
Model:
Features:
VVHWC-OSC
•22 Gauge zinc-coated steel casing
•One to four row construction
•Aluminum fins spaced at 10 fins per inch
Oversized High Capacity Hot Water Coil
Model:
Features:
VVHWC-OHC
•22 Gauge zinc-coated steel casing
•One or two row construction
•Aluminum fins spaced at 12 fins per inch
Different types of valve accessories can be
used with the VFX. When using
accessories by Others, ensure the
dimensions and installation are compatible
with the Antec Controls VFX.
CAUTION