Install Instructions

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Copyright © 2004 Honeywell International Inc. • All Rights Reserved 7157 677
INSTALLATION INSTRUCTIONS
62-0200-2
M6435A, M7435F
Spring Return Actuators
FOR CARTRIDGE GLOBE VALVES
INSTALLATION
When Installing this Product...
1. Read these instructions carefully. Failure to follow
them could damage the product or cause a
hazardous condition.
2. Check ratings given in instructions and on the
product to ensure the product is suitable for your
application.
3. Installer must be a trained, experienced service
technician.
4. After installation is complete, check out product
operation as provided in these instructions.
CAUTION
Electrical Shock or Equipment Damage Hazard.
Can shock individuals or short equipment
circuitry.
Disconnect power supply before installation.
IMPORTANT
A low-force (40.5 lb [180 N]) actuator installed
on a valve larger than 3/4 in. cannot operate the
valve.
Location
Select a location where the valve and actuator are
accessible.
Mounting
No tools are required to install the actuators on valves
because they are threaded onto the valve by hand.
CAUTION
Careless Installation Hazard.
Forcibly tightening the mounting connection
can damage the valve and actuator.
Never tighten the connection with a wrench.
Fig. 2 shows the M6435A, M7435F valve position
indicator. To mount the actuator, refer to Fig. 3 through 4:
1. Remove valve protective cover (Fig. 3).
2. Make sure the actuator is in the (factory-supplied)
OPEN position.
3. Screw the actuator connector onto the body of the
valve (Fig. 4).
Fig. 1. Approximate dimensions in in. (mm).
Wiring
Connect the actuator to the controller using the wiring
diagram for the controller. See Fig. 5 for typical hookup to
T6984F.
Use the M7435F with Excel
®
5000/500/100/80
Controllers, T7984, and W7751 controllers. Power the
M7435F from the same transformer as the controller
when using Excel Systems, or T7984 Controllers, when
the common lines from the controller and the actuator are
connected together and the hot side of the 24 Vac power
connection on the transformer is used. See Fig. 6.
Fig. 2. Valve position indicator.
5
(126)
1-5/16
(33)
3-3/16 (81)
M19615
4-1/4 (108)
M19652