Dwyer ZV2 - Manual (Page 2)

Instructions for Operation and Use
1. Assembly and disassembly of the actuator and valve body fit the
square axis of the valve body with the square hole in the actuator and
insert (make sure that another axis will not touch the actuator). Rotate
the actuator or valve body, make another axis of the valve body aim at
the corresponding hole in the actuator. Use a little force to press the
actuator. Turn the locking key clockwise to lock the actuator into place.
The assembly of the actuator and valve body is finished. When
disassembling, turn the locking key counterclockwise, and use a little
force to pull out the actuator in the opposite direction used during
assembly.
2. 2-way valves are installed as Figure 2 and 3 shows. For high building,
pressure–reducing valve should be installed on branch pipe at ground
floor.
3. 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.
4. Manual operating lever: The valve is unlocked when you press the
manual operating button. Moving the manual lever can make the valve
return. When releasing the button, the valve will be locked again
automatically.
5. When installing a 2-way valve, the flow direction is from end “B” to “A”.
For a normal-open valve, it is from end “A” to “B”. In both situations, the
valve closing direction is opposite.
Electronic Card Setting Diagram
MAINTENANCE
Upon final installation of the Series ZV2 Two-Way Detachable Zone
Valves, no routine maintenance is required. A periodic check of the
system calibration is recommended. The Series ZV2 is not field
serviceable and should be returned if 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
before shipping.
©Copyright 2010 Dwyer Instruments, Inc. Printed in U.S.A. 3/10 FR # RB-443459-20 Rev. 2
W.E. ANDERSON DIV., DWYER
INSTRUMENTS, INC.
P.O. BOX 358 • MICHIGAN CITY, INDIANA 46361 U.S.A.
Phone: 219/879-8000 www.dwyer-inst.com
Fax: 219/872-9057 e-mail: [email protected]
Fig. 4
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