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ManualsBrandsSiemens ManualsShort Stroke (BC3)Powermie 599 MT Series SAS Electronic Valve Actuator, 24 Vac or 24 Vdc, Floating Control (3-Position) Technical Instructions
12345
Powermite 599
Technical Instructions
Document No. 155-681
October 2, 2017
MT Series SAS Electronic
Valve Actuator, 24 Vac or 24 Vdc,
Floating Control (3-Position)
SAS81.03U
SAS81.33U
Siemens Industry, Inc.
Description
The Powermite 599 MT Series SAS Electronic Valve Actuator requires a 24 Vac or
24 Vdc supply and receives a floating control signal to provide three-position control.
The actuator controls Powermite 599 Series MT Series terminal unit valves with a
7/32-inch (5.5 mm) stroke.
Features
• Position indicator.
• UL listed for plenum installations.
• Floating control signal input.
• Manual positioning knob with stroke indication allows for repositioning.
• Mechanical spring returns the valve to its normal (fail-safe) position in power-off
conditions (SAS81.33U only).
Application
For use in small to medium HVAC installations with Powermite 599 Series terminal unit
valves with a 7/32-inch (5.5 mm) stroke requiring a minimum of 90 pounds force
(400N). They can be used in liquid and low pressure steam service applications.
Product Number
Table
1
. Ordering Information.
Product Number Actuator Type Actuator Prefix Code
SAS81.03U Non-Spring Return (Fail-in-place) 363
SAS81.33U Spring Return (Fail-safe) 366
Ordering
Information
To order a complete valve plus actuator assembly from the factory, combine the
actuator prefix code with the suffix of the valve product number. See TB251, Powermite
599 Series MT Series Terminal Unit Valve and Actuator Assembly Selection Technical
Bulletin (155-306P25) for selection procedures.
To order an actuator only, use the product number in Table 1.

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