| Вид документа | Бюлетень виробу |
|---|---|
| Виробник | JCI |
| Код документа | av-8020-series-floating-control-actuated-valve-product-technical-bulletin |
| Група обладнання | AV-8020-1001 Floating Control Actuated Valve |
| Сторінок | 8 |
| Мова документа | англійська |
| Розмір файлу | 0.2 МБ |
Текст документа
FANs 977, 1628.3
Product/Technical Bulletin AV-8020
Issue Date 0300
AV-8020 Series Floating Control Actuated Valve
The AV-8020 is an electric actuator/brass valve
combination that furnishes floating control of water flow
in Heating, Ventilating, and Air Conditioning (HVAC)
applications for zone control.
The AV-8020 consists of a motor-driven, force-sensor-
limited electric actuator, factory coupled to a forged
brass flare valve. The non-spring return actuator
features a 22 lb seating force in a compact, easy to
install package. It provides floating control from a
24 VAC signal.
The valve features 1/2 in. flare connections and is
available as a two-way Push-Down-To-Close (PDTC)
or a three-way mixing configuration.
Figure 1: AV-8020-1001
Floating Control Actuated Valve
Features and Benefits
❑ Simplified Setup and Reduces installation costs
Adjustment Procedures
❑ 1/2 in. O.D. SAE 45° Flare Installs with copper tubing (no solder); makes
Connections removal easy for maintenance
❑ Every Valve Tested for Ensures occupant comfort and energy
Tight Initial and Long-Term conservation
Shutoff
❑ Compact Assembly Size Fits most unit vent or baseboard applications
❑ Slotted Stem Valve Provides ease of attachment
❑ Two- and Three-Way Valves Suitable for modulating or mixing applications
© 2000 Johnson Controls, Inc. 1
Part No. 14-624-28, Rev. B www.johnsoncontrols.com
Code No. LIT-977270
O peration
The AV-8020 actuated valve operates on a 24 VAC Field Connections:
White - Common
signal from a compatible controller. The controller Red - Down
sends 24 VAC to either the up (valve stem extended) Black - Up
or the down (valve stem retracted) wire on the
AV-8020. This signal drives the actuator motor causing
the valve stem to move in the desired direction for the Drive
application. Screw
The actuator uses a reversible synchronous motor to Lever
accurately position the valve. The motor can reliably Plate
generate 22 pounds of shutoff force in either the
Drive Down or Drive Up direction.
Once the valve closes, a shutoff force builds up.
A lever within the actuator operates a force sensor that Stem Retainer/
stops the motor when the force reaches 22 pounds. Position Indicator
The constant load at the end of travel ensures tight Manual
Packing Adjustment
valve seat shutoff and compensates for seat wear. Collar Knob
Field calibration of shutoff is not required. The actuator Valve Stem
maintains the shutoff force and its last position even if
power is removed. N.C. Body
Inlet
Note: The valve stem can be positioned manually by Plug
turning the manual adjustment knob shown in
Figure 2. Rotating the knob counterclockwise Outlet
moves the valve stem up.
N.O.
Inlet
Note: The N.C. inlet is not present on a two-way valve.
Figure 2: AV-8020 Components
2 AV-8020 Series Floating Control Actuated Valve Product/Technical Bulletin
D imensions
See Figures 3 and 4 for AV-8020 dimensions.
5 1-1/2
2-9/16 127 38
65
6-5/8
168
1-1/4
32
5/8
16 1
25
1-1/4 3
32 76
Side View Front View
Figure 3: AV-8020 Two-Way PDTC Valve Dimensions, in. (mm)
5 1-1/2
2-9/16 127
65 38
7
178
1-1/2
38
1-1/2
38 3/4
19 1-3/16
30
1-1/4 3
32 76
Side View Front View
Figure 4: AV-8020 Three-Way Mixing Valve Dimensions, in. (mm)
AV-8020 Series Floating Control Actuated Valve Product/Technical Bulletin 3
M ounting, Wiring, and Commissioning
Input lines to the actuator must be wired correctly for
! CAUTION: Equipment Damage Hazard.
the valve to move in the proper direction. Refer to the
specific controller wiring instructions. Refer to the
Disconnect all power supplies
VA-8020 Floating Valve Actuator Product/Technical
before wiring connections are
Bulletin (FAN 977 or 1628.3) for actuator mounting,
made or prior to performing
wiring, and commissioning instructions.
maintenance. Check all wiring
connections before applying
power to the system.
Short-circuited or improperly
connected wires will result in
R epair and Replacement
Field repairs must not be made, except for
permanent damage to the
replacement of the valve packing and the actuator.
equipment.
Contact the nearest Johnson Controls representative,
and specify V-520-650 for the valve packing or
IMPORTANT: Make all wiring connections in VA-8020-1 for the actuator.
accordance with the National
Electrical Code and local
regulations.
4 AV-8020 Series Floating Control Actuated Valve Product/Technical Bulletin
O rdering Information
To order an AV-8020 actuated valve assembly, contact Specify the product code number from Table 1.
the nearest Johnson Controls representative. Refer to Table 2 for accessories available.
Table 1: Actuated Valve Assembly Models and Replacement Valves
Actuated Valve Maximum Maximum Replacement
Product Code Closeoff Pressure Valve Product Valve Style
Cv (Kv) Rating
Number psig (kPa) Code Number
AV-8020-1001 0.5 (0.4) 232 (1598) VB-5239-1730
AV-8020-1002 Two-Way PDTC
1.2 (1.0) 100 (689) VB-5239-1750
AV-8020-1003 2.4 (2.1) 100 (689) VB-5239-1770
AV-8020-1004 0.5 (0.4) 232 (1598) VB-5839-1730
AV-8020-1005 Three-Way Mixing
1.2 (1.0) 100 (689) VB-5839-1750
AV-8020-1006 2.4 (2.1) 100 (689) VB-5839-1770
Table 2: Actuator Accessories
Product Code Number Description
VA-8020-601 Replacement cover only
VA-8020-605* Stem retainer and clip kit
V-520-650 Valve packing
* One kit is included with the VA-8020 actuator. If ordered separately, it must be ordered in multiples of five.
AV-8020 Series Floating Control Actuated Valve Product/Technical Bulletin 5
Notes
6 AV-8020 Series Floating Control Actuated Valve Product/Technical Bulletin
Notes
AV-8020 Series Floating Control Actuated Valve Product/Technical Bulletin 7
S pecifications
Product AV-8020 Series Floating Control Actuated Valve
Power Requirements 20 to 30 VAC at 50/60 Hz, 3.4 VA supply minimum, Class 2
Input Signal 20 to 30 VAC, 50/60 Hz
Input Impedance 250 ohms, nominal
Shutoff Force 22 lb (98 N) minimum
Shutoff Pressure See Table 1.
Valve Body Connections 1/2 in. (15 mm) external SAE flared-end
Valve Stroke and Time 5/16 in. (8 mm) in approximately 90 seconds
Valve Body Rating 232 psig (1598 kPa)
Valve Cv Factor See Table 1.
Valve Flow Characteristic Two-way, equal percentage
Three-way, linear
Ambient Operating 35 to 150°F (2 to 65°C);
Conditions 85°F (30°C) maximum dew point at 90% RH, non-condensing
Ambient Storage -40 to 150°F (-40 to 65°C);
Conditions 85°F (30°C) maximum dew point at 90% RH, non-condensing
Media Temperature Water: 195°F (90°C) maximum
Valve Materials Body: Forged brass
Plug: Brass
Stem: 316 stainless steel
Packing: Synthetic elastomeric ring pack
Dimensions (H x W x D) See Figures 3 and 4.
Shipping Weight 2.6 lb (1.2 kg)
Agency Compliance VA-8020: UL 873 Recognized, File E27734, Guide XAPX2 (Suitable for plenum use)
CSA C22.2 No. 139 Certified, File LR85083, Class 3221 02
The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these
specifications, consult the local Johnson Controls office. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication
or misuse of its products.
Controls Group
507 E. Michigan Street
P.O. Box 423 Printed in U.S.A.
Milwaukee, WI 53201 www.johnsoncontrols.com
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