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ManualsBrandsSiemens ManualsControl ValvesSFA Series 2-Position Normally Closed Electronic Valve Actuator (24 Vac)
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599 Series Zone Valves
SFA/SFP Electronic Valve Actuator
2-Position Control
Installation Instructions
Document No. 129-335
June 22, 2005
EA0961R1
Product Description
The SF Series actuator requires a 24 Vac, 120 Vac, 208 Vac,
or 277 Vac Class-2 supply signal to control Siemens Zone
Valves with a 1/10-inch (2.5 mm) stroke.
Warning/Caution Notations
WARNING:
Personal injury or loss of life
may occur if you do not follow
a procedure as specified.
CAUTION:
Equipment damage, or loss of
data may occur if you do not
follow a procedure as
specified.
Product Numbers
Actuator
Model
Power
Supply
Actuator
Code
SFP71U 24 Vac 243
SFP11U 120 Vac 241
SFP277U/25 277 Vac – *
Normally
Open
SFP208U/25 208 Vac – *
SFA71U 24 Vac 242
SFA11U 120 Vac 240
SFA208U/25 208 Vac – *
Normally
Closed
SFA277U/25 277 Vac – *
* Actuator only with 2.5-meter cable, not available
as an assembly.
Contents
One actuator
Required Tools
• Small flat-blade screwdriver
• Wire stripper
Estimated Installation Time
20 minutes
EA0959R1
Figure 1. Acceptable Mounting Positions.
The vertical position is recommended for mounting.
Prerequisites
WARNING:
1. If mounting the actuator to a valve already
in line:
• Close the shut-off valves in the piping
(upstream first, then downstream).
Or
• Switch off the pump to allow the
differential pressure in the valve to
drop.
2. Disconnect the controller power before
replacing the actuator.
Installation
Mounting the SFP Actuator to a Valve
1. Place the actuator on the valve and firmly hand-tighten the
coupling piece.
2. Connect the wires. See Wiring.
Mounting the SFA Actuator on a Valve
CAUTION:
The black actuator attachment support ring
must be in place on top of the valve bonnet
before installing the actuator.
If the support ring is not in place, damage to
the actuator connection may result.
1. Rotate the manual override lever and latch.
2. Place the actuator on the valve and firmly hand-tighten
the coupling piece.
CAUTION:
Failure to fully rotate the manual override
handle before hand tightening will hinder
proper valve close off.
3. Release manual override handle.
4. Connect the wires. See Wiring.
Item Number 129-335, Rev. 015 Page 1 of 4

Summary of content (4 pages)