Dwyer 3ZV1 User Manual
Series 3ZV1 Three-Way Zone Valves
®
A
B
C
Specifications - Installation and Operating Instructions
Bulletin V-26
3ZV1 Series Zone Valves are ideal for flow control in hot and cold water HVAC
systems. The 3ZV1 is electrically driven to open and spring to close. Units are
available in 1/2˝, 3/4˝, and 1˝ sizes with 24 or 120 VAC power supply. Easy to install
these units are direct replacements for competitor units. Manual override lever is
easily accessible externally. Consult factory for 220 VAC power supply, optional
auxiliary switches, and BSP or sweat connections.
Model
3ZV1022
3ZV1024
3ZV1032
3ZV1034
3ZV1042
3ZV1044
Cv
3.78
3.78
3.78
3.78
8.02
8.02
Size
Supply Voltage
1/2˝
120 VAC
1/2˝
24 VAC
3/4˝
120 VAC
3/4˝
24 VAC
1˝
120 VAC
1˝
24 VAC
Close-off Pressure psi (bar)
22 (1.5)
22 (1.5)
14.5 (1.0)
14.5 (1.0)
10 (.70)
10 (.70)
ize
[in (mm)]
S
A
/2˝
.57 (116)
1
4
/4˝
.69 (119)
3
4
1˝
4.92 (125)
SPECIFICATIONS
Service: Compatible fluids.
Body: 3-way.
Line Size: 1/2˝ to 1˝.
End Connections: Female NPT (optional BSP, sweat connections).
Pressure Limits: Maximum: 300 psi (20.7 bar); Close-off: see model chart.
Temperature Limits: Ambient: 32 to 104°F (0 to 40°C); Process: 32 to 201°F (0
to 94°C).
Wetted Materials: Brass, stainless steel, NBR.
Flow Characteristic: Quick opening.
Power Requirements: 120 VAC or 24 VAC, ±10%, 50/60 Hz. (Optional 220
VAC).
Power Consumption: 6.5 W.
Input: On/off.
Electrical Connection: 22 AWG, 5˝ (127 mm) long.
Cycle Time: Opening time: 11 seconds; Closing time: 5 seconds.
Enclosure Rating: General purpose.
Housing Material: Aluminum.
[in (mm)]
C
.48 (63)
2
.48 (63)
2
2.48 (63)
[in (mm)]
B
.54 (90)
3
.66 (93)
3
3.74 (95)
W.E. ANDERSON DIV.,
DWYER INSTRUMENTS, INC.
P.O. BOX 358 • MICHIGAN CITY, INDIANA 46360 U.S. A.
Phone: 219/879-8000 www.dwyer-inst.com
Fax: 219/872-9057 e-mail: info@dwyermail.com
nstructions for Operation
I
ormally-closed 2-way and diverting 3-way valve are installed as Figure 1, 2 and
N
shows. For high building, pressure –reducing valves should be installed on
3
ranch pipes at ground floor.
b
Note: When the valve is mounted on a horizontal pipe, the angle must be
positioned less than 85°(see Figure 4).
When the valve is mounted on a vertical pipe, prevent from dripping.
anual operating lever: Move the manual operating lever slowly and hold in the
M
etaining notch, and then the valve is in normal-opened position. When the valve is
r
irst powered on, the lever goes back to the automatic position again.
f
ig. 2 Three-way valve
ig. 1 Two-way valve
F
Fig. 3 Three-way valve with box change-over switch
F
AINTENANCE
M
pon final installation of the Series 3ZV1 Three-Way Zone Valves, no routine
U
aintenance is required. A periodic check of the system calibration is
m
ecommended. The Series 3ZV1 is not field serviceable and should be returned if
r
repair is needed (field repair should not be attempted and may void warranty). Be
sure to include a brief description of the problem plus any relevant application
notes. Contact customer service to receive a return good authorization number
efore shipping.
b
Fig. 4
When installing a diverting 3-way valve, end “B” is the supply to the coil, end “A” is
the by-pass. There is no mark for an inlet. End “A” and “B” are marked on the
bottom of the valve.
When the valve has an auxiliary micro switch, the wiring diagram is as follows:
©Copyright 2014 Dwyer Instruments, Inc. Printed in U.S.A. 6/14 FR # R2-443459-10 Rev. 1
W.E. ANDERSON DIV.,
DWYER INSTRUMENTS, INC.
Phone: 219/879-8000 www.dwyer-inst.com
Fax: 219/872-9057 e-mail: info@dwyermail.com
P.O. BOX 358 • MICHIGAN CITY, INDIANA 46360 U.S. A.
Loading...