3
AB-7489-U
Model Numbers
Model VY51_ _J00_ _ is the model for the valve and actuator integrated into a single unit.
The model number label is attached to the yoke. The control signal is indicated on the actuator label and on the wiring
diagram as follows:
•
4 mA DC to 20 mA DC input 4–20 mA
•
2 V DC to 10 V DC input 2–10 V
Base
model
number
Actuator/valve
Actuator
Valve
Description
Control
signal
Rating/
material
Type
Nominal
size/Cv
VY51
Motorized two-way valve with flanged-end connection
4
2 V DC to 10 V DC input with 2 V DC to 10 V DC feedback output
9
4 mA DC to 20 mA DC input with 4 mA DC to 20 mA DC feedback output
F
ANSI Class 125 / A126 Class B
[for water]
G
ANSI Class 125 / A126 Class B
[for steam]
J
NEMA 4X and IEC IP54 protected and standard torque type actuator with
terminal block
00
21
1" / 10 Cv value
22
1" / 16 Cv value
41
1½" / 25 Cv value
42
1½" / 40 Cv value
51
2" / 65 Cv value
61
2½" / 95 Cv value
81
3" / 125 Cv value
Notes:
1. This product has acquired the following UL/cUL certification.
UL60730-1/-2-14, CAN/CSA E60730-1:15 / -2-14:13
Rated impulse voltage : 330 V (Over Voltage Category I), Control pollution degree: 4 (3 for the inside of actuator), Type of action: 1
Use the class 2 power supply.
Provide a circuit protector (8 A max.) such as a fuse or circuit breaker for the power source.
UL50E
Type 4 Enclosure
2. Only the actuator is certified with the UL/cUL above.
CAUTION
After installation, make sure no fluid leaks
from the valve-pipe connections.
Improper piping may cause fluid leakage
outside of the valve.
Do not put a load or weight on this product.
Doing so may damage the product.
Installation and wiring of the actuator must
be performed by personnel qualified to do
instrumentation and electrical work.
Mistakes in installation or wiring may cause
fire or electric shock.
Before wiring, setting, or maintenance, be
sure to turn off the power to this product.
Failure to do so may result in electric shock
or device failure.
All wiring must comply with applicable codes
and ordinances.
Otherwise there is a danger of fire.
CAUTION
Use crimp terminals with insulation for
connections to the product terminals.
Failure to do so may cause short circuit
leading to fire or device failure.
Tighten the terminal screws with the
specified torque.
Insufficient tightening of the terminal screws
may cause fire or overheating.
After wiring, setting, or maintenance, be sure
to reattach the terminal cover.
Failure to do so may result in electric shock.
Do not touch any parts unless instructed to
do so in this manual.
Failure to observe these precautions may
result in burns, because actuator parts reach
a high temperature.
Do not carelessly touch this product when it
is used to control hot water.
Doing so may result in burns, because the
product reaches a high temperature.
