Greentrol Automation GF-A1000-DI Series User manual

GF-A1000-DI, GF-A1001-DI
Quick Installation Guide
Green-Flow Analog Output Measurement Station
Thermal Dispersion Airflow Measurement Technology
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GreenTrol Automation • 156 Holly View Lane., Loris SC 29569 • Toll Free: 877.4GNTROL (446.8765) • Fax: [phone] • Internet: GreenTrol.com
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Installation Guide
GF-A1000-DI Series
Analog Output Airflow/Temperature
Measurement Station
Document: IG_GF-A1000-DI_R1A
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IG-GF-A1000-DI R1A

Green Flow GF-A1000-DI, GF-A1001-DI
INSTALLATION GUIDE –ANALOG OUTPUT THERMAL DISPERSION AIRFLOW
MEASURING DEVICE
2
GreenTrol Automation • 156 Holly View Lane., Loris SC 29569 • Toll Free: 877.4GNTROL (446.8765) • Fax: [phone] • Internet: GreenTrol.com
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LIST OF EFFECTIVE AND CHANGED PAGES
Insert latest changed pages (in bold text); remove and dispose of superseded pages.
Total number of pages in this manual is 1
12
.
Page No Revision * Description of Change Date
1 through 12 ………..R1A ………….Initial Document Release………………………………………………………………………………………………………………...7/1/2020
*R1A indicates an original page without change
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Table of Contents
1INTRODUCTION AND SCOPE................................................................................................................................................................................3
2GF-A1000-DI, GF-A1001-DI INSTALLATION ........................................................................................................................................................3
3GF-A1000-DI/GF-A1001-DI PREPARATION FOR USE .........................................................................................................................................5
4GF-A1000-DI/GF-A1001-DI INTERCONNECTIONS..............................................................................................................................................5
4.1GF-A1000-DI/GF-A1001-DI 24 VAC Power Connections..........................................................................................................................6
4.2GF-A1000-DI/GF-A1001-DI Analog Output Connections ..........................................................................................................................6
4.2.1Converting the GF-A1000-DI/GF-A1001-DI Analog Output for 4-wire Current Loops ...................................................................6
5GF-A1000-DI/GF-A1001-DI ANALOG OUTPUT CONFIGURATION OPTIONS (CONFIG SW1 - SW4)....................................................................6
6GF-A1000-DI/GF-A1001-DI INITIAL START UP / NORMAL OPERATION.......................................................................................................... 10
6.1Converting the Analog Airflow Output Signal from Linear to Volumetric flow - FPM to CFM................................................................ 10
7GF-A1000-DI ADDITIONAL INFORMATION........................................................................................................................................................ 10
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List of Figures
Figure 1. GF-A1000-DI Installation Applications and Orientation ...............................................................................................................................4
Figure 2. GF-A1000-DI/GF-A1001-DI Installation Dimensions ...................................................................................................................................5
Figure 3. Main Circuit Board and Configuration Option Selector Detail .....................................................................................................................7
Figure 4. GF-A1000-DI Single Output Power and Signal Wiring Interconnections .....................................................................................................8
Figure 5. GF-A1001-DI GF-A1000-DI Dual Output Power and Signal Wiring Interconnections .................................................................................9
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List of Tables
Table 1. CONFIG Switch Settings ..................................................................................................................................................................................6
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Green Flow GF-A1000-DI, GF-A1001-DI
INSTALLATION GUIDE –ANALOG OUTPUT THERMAL DISPERSION AIRFLOW
MEASURING DEVICE
3
GreenTrol Automation • 156 Holly View Lane., Loris SC 29569 • Toll Free: 877.4GNTROL (446.8765) • Fax: [phone] • Internet: GreenTrol.com
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1INTRODUCTION AND SCOPE
This Quick Installation Guide provides basic installation information for the instrument installer. Information includes physical
instrument installation, power and output cable connections as well as initial setup of the instrument.
Models covered in this document are include all GF-A100X options as follows:
xSingle (GF-A1000) or Dual (GF-A1001) analog output
xWith or without flow integration
xAluminum or stainless-steel probe material
xProbe length (4 through 10, 12, 14, 16-inch lengths)
x0-10/2-10VDC or 0-5/1-5VDC analog output range
2GF-A1000-DI, GF-A1001-DI INSTALLATION
The GF-A1000-DI instruments are designed for use in small ducts and in VAV terminal box applications in an environment between
-20°F to 120°F (-28.9°C to 48.9°C) where it will not be exposed to rain or snow. The GF-A1000-DI/GF-A1001-DI airflow
measurement station
sensor probes are designed for insertion mounting through one side of the duct or VAV box sidewall. Mount
the instrument in an accessible location to permit set up. Locate the instrument so that the attached instrument cable will reach
the customer provided BAS control interface.
CAUTION
The installed location of the GF-A1000-DI/GF-A1001-DI is critical for proper
performance.
The installed accuracy of the GF-A1000-DI/GF-A1001-DI is ensured in applications
where the maximum inside duct dimension is 16 inches or less. Applications in larger
duct sizes may degrade accuracy. Consult factory for these applications.
Ensure that adequate clearance exists around the duct to permit insertion of the
probe, and to allow clearance for the instrument enclosure.
Insulation that interferes with probe mounting should be temporarily removed prior to
installation. Mounting requires a 0.875 inches (22.2 mm) hole on the insertion side of
the duct or VAV terminal box.
1.Determine where the GF-A1000-DI/GF-A1001-DI airflow measuring station is to be located as indicated on the engineer's
plans.
2.Carefully open the GF-A1000-DI/GF-A1001-DI package and inspect for damage. If damage is noted, immediately file a
claim with carrier.
3.Locate and mark the point on the duct or VAV box where the probe will be inserted, using the GteenTrol Minimum
Placement Guidelines. Figures 1 and 2 show GF-A1000-DI installation detail, probe orientation and dimensions.
4.Using a 0.875 inches (22.2 mm) hole saw, drill the insertion side hole where marked.
5.Place the probe through the mounting hole, making sure that the gasket is seated firmly against the integral mounting
bracket. Ensure that the edge of the GF-A1000-DI/GF-A1001-DI mounting bracket is parallel to the edge of the duct
or VAV terminal
box, and that the airflow arrow printed on it is oriented in the direction of actual airflow. Ensure that
the gasket is firmly seated against the bracket, and then fasten the mounting bracket at the four mounting holes using
appropriate sheet metal screws.
6.Route the GF-A1000-DI/GF-A1001-DI instrument cable to the customer provided BAS interface. The following sections
of this document
describe instrument set up and operation.
IG GF
-
A1000
-
DI
R1A


Green Flow GF-A1000-DI, GF-A1001-DI
INSTALLATION GUIDE –ANALOG OUTPUT THERMAL DISPERSION AIRFLOW
MEASURING DEVICE
4
GreenTrol Automation • 156 Holly View Lane., Loris SC 29569 • Toll Free: 877.4GNTROL (446.8765) • Fax: [phone] • Internet: GreenTrol.com
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Figure 1. GF-A1000-DI Installation Applications and Orientation
IG_GF-A1000-DI
_R1A

Green Flow GF-A1000-DI, GF-A1001-DI
INSTALLATION GUIDE –ANALOG OUTPUT THERMAL DISPERSION AIRFLOW
MEASURING DEVICE
5
GreenTrol Automation • 156 Holly View Lane., Loris SC 29569 • Toll Free: 877.4GNTROL (446.8765) • Fax: [phone] • Internet: GreenTrol.com

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Figure 2. GF-A1000-DI/GF-A1001-DI Installation Dimensions
3GF-A1000-DI/GF-A1001-DI PREPARATION FOR USE
Dual output GF-A1001-DI models provide two separate linear analog outputs with one for measured airflow (or equivalent velocity
pressure) and the other for measured temperature. Single output GF-A1000-DI models provide a single analog output for air-
flow. The airflow analog output can be set for either air flow or equivalent velocity pressure measurement with four field selectable
full scale range options. On the dual output GF-A1001-DI, the temperature output is set for a full scale range of -20 to 120°F (-
28.9 to 48.9°C).
Preparation for use consists of connecting 24VAC input power and analog output signal wires from the GF-A1000-DI/GF-A1001-
DI to the BAS interface, and if required, setting the GF-A1000-DI/GF-A1001-DI analog output CONFIG switch options
(measurement mode, analog output signal type and full scale measurement range options).
4GF-A1000-DI/GF-A1001-DI INTERCONNECTIONS
The GF-A1000-DI/GF-A1001-DI is equipped with plenum rated 18 AWG interconnecting cable for power and analog output
connections with customer equipment. Connect 24 VAC power and analog output to customer interface as outlined in the
following paragraphs. Refer to Figures 3 to 5 and the following GF-A1000-DI/GF-A1001-DI cable color code descriptions:
Red
24 VAC power
Black
* Common GF-A1000-DI '&ͲϭϬϬϭͲ/ Power/Signal Ground (for 24
VAC and for analog output)
White
Airflow Analog output signal
Green
(on GF-A1001-DI dual analog output models only) Temperature Analog output signal
*CAUTION
The GF-A1000-DI/GF-A1001-DI is equipped with a common 24VAC ground and
analog output signal return. EBTRON
strongly recommends that the BAS control
interface be connected to the GF-A1000-DI/GF-A1001-DI analog output using TWO
separate wires (twisted shielded pair) in order to eliminate any potential voltage drop
on the common (from the 24VAC return) that would otherwise cause inaccurate
readings.
CAUTION
To prevent damage to the GF-A1000-DI/GF-A1001-DI, deactivate 24 VAC power
source until all connections to the instrument are completed.
NOTE
The 24 VAC input ground (GND) connection is shared with the analog output signal
ground. If an
isolated output is desired, a dedicated transformer is required to power
the GF-A1000-DI/GF-A1001-DI.
IG_GF-A1000-DI
_R1A

Green Flow GF-A1000-DI, GF-A1001-DI
INSTALLATION GUIDE –ANALOG OUTPUT THERMAL DISPERSION AIRFLOW
MEASURING DEVICE
6
GreenTrol Automation • 156 Holly View Lane., Loris SC 29569 • Toll Free: 877.4GNTROL (446.8765) • Fax: [phone] • Internet: GreenTrol.com
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4.1
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GF-A1000-DI/GF-A1001-DI 24 VAC Power Connections
The GF-A1000-DI '&ͲϭϬϬϭͲ/ requires a power source capable of providing 22.8 to 26.4 VAC at 5 VA.
CAUTION
24 VAC power must be deactivated before making connections to the instrument.
Connect 24VAC power between the red wire and black wire as shown in Figures 4 and 5.
4.2
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GF-A1000-DI/GF-A1001-DI Analog Output Connections
The GF-A1000-DI/GF-A1001-DI provides separate 0-10VDC (or 2-10VDC) analog outputs corresponding to airflow (or equivalent
velocity pressure) and temperature. The outputs are capable of driving 20mA loads. The analog outputs are not isolated from the
input power. The 24VAC input ground connection is shared with the analog signal ground (black wire - GND). If isolated outputs
are required, the GF-A1000-DI/GF-A1001-DI must be powered by a dedicated transformer.
Connect the analog airflow output (white wire), temperature output (green wire on GF-A1001-DI only) and the signal common
(black wire) to the BAS monitor/control interface using shielded twisted pair cable as shown in Figures 4 and 5.
4.2.1
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Converting the GF-A1000-DI/GF-A1001-DI Analog Output for 4-wire Current Loops
The VDC output circuit of the GF-A1000-DI '&ͲϭϬϬϭͲ/ transmitter can drive the input circuit of devices designed to
measure 4-wire current loops with a resistive load 250 ohms.
5GF-A1000-DI/GF-A1001-DI ANALOG OUTPUT CONFIGURATION OPTIONS
(CONFIG SW1 - SW4)
To access the field selectable analog output configuration switches, remove the four retaining screws at each corner
of
the GF-A1000-DI '&ͲϭϬϬϭͲ/ enclosure cover. Configuration selector switches SW1 through SW4 are part of a four-
switch DIP package labeled
CONFIG. Figure 3 shows the GF-A1000-DI '&ͲϭϬϬϭͲ/ main circuit board and the
individual switches for setting the output measurement
mode, analog output voltage range and output full scale
values. Factory default switch settings are all OFF. The table
below shows the CONFIG switch settings and resulting
operation for each of the GF-A1000-DI
'&ͲϭϬϬϭͲ/ model versions.
Table 1. CONFIG Switch Settings
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IG_GF-A1000-DI
_R1A

Green Flow GF-A1000-DI, GF-A1001-DI
INSTALLATION GUIDE –ANALOG OUTPUT THERMAL DISPERSION AIRFLOW
MEASURING DEVICE
7
GreenTrol Automation • 156 Holly View Lane., Loris SC 29569 • Toll Free: 877.4GNTROL (446.8765) • Fax: [phone] • Internet: GreenTrol.com
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Figure 3. Main Circuit Board and Configuration Option Selector Detail
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IG GF-A1000-DI
R1
A

Green Flow GF-A1000-DI, GF-A1001-DI
INSTALLATION GUIDE –ANALOG OUTPUT THERMAL DISPERSION AIRFLOW
MEASURING DEVICE
8
GreenTrol Automation • 156 Holly View Lane., Loris SC 29569 • Toll Free: 877.4GNTROL (446.8765) • Fax: [phone] • Internet: GreenTrol.com
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Figure 4. GF-A1000-DI Single Output Power and Signal Wiring Interconnections
IG_GF-A1000-DI
_R1A

Green Flow GF-A1000-DI, GF-A1001-DI
INSTALLATION GUIDE –ANALOG OUTPUT THERMAL DISPERSION AIRFLOW
MEASURING DEVICE
9
GreenTrol Automation • 156 Holly View Lane., Loris SC 29569 • Toll Free: 877.4GNTROL (446.8765) • Fax: [phone] • Internet: GreenTrol.com
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Figure 5. GF-A1001-DI GF-A1000-DI Dual Output Power and Signal Wiring Interconnections
IG_GF-A1000-DI
_R1A

Green Flow GF-A1000-DI, GF-A1001-DI
INSTALLATION GUIDE –ANALOG OUTPUT THERMAL DISPERSION AIRFLOW
MEASURING DEVICE
10
GreenTrol Automation • 156 Holly View Lane., Loris SC 29569 • Toll Free: 877.4GNTROL (446.8765) • Fax: [phone] • Internet: GreenTrol.com
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6GF-A1000-DI/GF-A1001-DI INITIAL START UP / NORMAL OPERATION
The following procedure is intended for initial startup of the instrument. Following the initial set up, no further user activity is
required during normal operation.
1.Remove the cover to the electronics enclosure by removing the four screws on the cover.
2.Make sure that the 24VAC circuit breaker used to power the GF-A1000-DI/GF-A1001-DI is turned OFF until all wiring is
complete!
3.Confirm 24VAC connection from the power source to the GF-A1000-DI/GF-A1001-DI 24VAC wire (red wire) as
outlined in the GF-A1000-DI
24VAC Power Connections section of this document.
4.Confirm common ground 24VAC and signal ground connection from the power source to the GF-A1000-DI at the black
wire.
5.Confirm GF-A1000-DI/GF-A1001-DI analog airflow (and temperature for GF-A1001-DI) signal output connections at the
white wire (and green
wire for GF-A1001-DI), to the analog input of the BAS as outlined in GF-A1000-DI/GF-A1001-DI
Analog Output Connections section of this document. Note that the ground of the BAS must be at the same voltage
reference as the ground of the GF-A1000-DI/GF-A1001-DI and the
power source.
6.Set the desired analog output options using CONFIG switches SW1 to SW4 as outlined in the GF-A1000-DI/GF-A1001-
DI Analog Output
Option Switch Settings section of this document.
7.Activate the 24VAC power source to power on the GF-A1000-DI/GF-A1001-DI.
8.Following a brief instrument initialization, the green Activity LED will continuously flash ON for 1 second, then OFF
for
1 second. This indicates normal operation. In the event of a sensor fault, the LED will produce longer continuous flashes
ON for 2 seconds, and OFF for 2 seconds.
9.Confirm that the BAS is receiving the analog output signals that indicate instrument airflow (or equivalent velocity
pressure) and temperature.
10.Replace the GF-A1000-DI/GF-A1001-DI electronics enclosure cover and secure with the four screws removed in step 1.
6.1

Converting the Analog Airflow Output Signal from Linear to Volumetric flow - FPM to CFM
The analog airflow output can be converted from velocity (FPM) to an equivalent volumetric flow (CFM) by multiplying the indicated
flow velocity by the free area of the sensor installed location (in square feet). For example, with the GF-A1000-DI/GF-A1001-
DI
installed in a 12 inch round duct, using the 0-10VDC scale and 3,000 FPM full scale output range options; an airflow output
of 5VDC indicates a flow velocity of 1,500 FPM (5VDC is one-half of the 0-10VDC output, corresponding to half of
the 0-3,000
FPM scale; and equals 1,500 FPM). The GF-A1000-DI/GF-A1001-DI installed duct location area in this example is calculated
at
0.785 ft
2
(using Pi x duct radius
2
, or 3.14 x 0.5ft
2
). Multiplying the indicated instrument output of 1,500 FPM by the duct free
area of 0.785 ft
2
yields an equivalent volumetric flow of 1,177.5 CFM.
7GF-A1000-DI ADDITIONAL INFORMATION
For additional information, contact your local Greentrol representative or our Technical Support Team at 877.4GNTROL
(1.877.446.8765).
IG_GF-A1000-DI
_R1A

Green Flow GF-A1000-DI, GF-A1001-DI
INSTALLATION GUIDE –ANALOG OUTPUT THERMAL DISPERSION AIRFLOW
MEASURING DEVICE
11
GreenTrol Automation • 156 Holly View Lane., Loris SC 29569 • Toll Free: 877.4GNTROL (446.8765) • Fax: [phone] • Internet: GreenTrol.com
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