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Powermite 599
MT Series SSC Electronic
Valve Actuator, 24 Vac/dc
Proportional Control
Description
Features
Application
Product Numbers
Ordering a Valve
Plus Actuator
Assembly
The Powermite 599 MT SSC61U and SSC61.5U electronic valve actuators require a
24 Vac or 24 Vdc supply and a 0 to 10 Vdc control signal. They proportionally control
Powermite 599 MT Series valves with a 7/32-inch (5.5 mm) stroke and a threaded
valve bonnet that fits the actuators.
·
UL listed for plenum installations.
·
Direct-coupled installation without special tools.
·
·
Visual position indication.
The Powermite 599 MT SSC61 series electronic actuators and MT Series valves are
used in closed loop heating and cooling applications. They control hot or chilled water
or steam (<5 psi) for convectors, fan coil units, unit conditioners, radiation, reheat coils,
and similar terminal units. The SSC61 series actuators accept a plenum cable or 3/8-
inch flex conduit connection.
Table 1. Product Numbers.
Actuator
Operating Mode
Non-spring Return
SSC61U
(Fail-in-Place)
Spring Return
SSC61.5U
(Fail-Safe)
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 Technical Bulletin
TB251, Powermite 599 Series MT Series Terminal Unit Valve and Actuator Assembly
Selection (155-306P25) for selection procedures.
To order an actuator only, use the product number.
Technical Instructions
Document No. 155-313P25
Actuator Prefix Code
261
262
EA 599-15
January 12, 2018
Siemens Industry, Inc.
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Summary of Contents for Siemens Powermite 599 MT Series
- Page 1 The Powermite 599 MT SSC61U and SSC61.5U electronic valve actuators require a 24 Vac or 24 Vdc supply and a 0 to 10 Vdc control signal. They proportionally control Powermite 599 MT Series valves with a 7/32-inch (5.5 mm) stroke and a threaded valve bonnet that fits the actuators.
- Page 2 -13°F to 158°F (-25°C to +70°C) Ambient humidity 0 to 90% rh (non-condensing) Media temperature 35°F to 230°F (2°C to 110°C) Wiring Connection Plenum cable or 3/8-inch flex conduit Physical characteristics Weight 0.61 lb (0.27 kg) Dimensions See Figure 7 Page 2 Siemens Industry, Inc.
- Page 3 Figure 5 and Figure 6) on the top of the actuator to the 0 position and verify that the actuator shaft retracts completely. 3. Connect a valve to the actuator, and reapply power. The actuator will return to normal operation. Siemens Industry, Inc. Page 3...
- Page 4 The maximum rating for a Class 2 step-down transformer is 100 VA. Do not power more than 10 actuators by one transformer. (Use 0.5 amp fuse on secondary per actuator.) CAUTION: Terminals must be properly wired for correct function and full life of the actuator. Page 4 Siemens Industry, Inc.
- Page 5 See Figure 5. Figure 5. Manual Override. Start-up Check the wiring and the position indicator (Figure 6). Position Indicator Output Shaft Retracted Extended Figure 6. Top View of Position Indicator (Shown in the 0 Position). Siemens Industry, Inc. Page 5...
- Page 6 Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as design improvements are introduced. Product or company names mentioned herein may be the trademarks of their respective owners. © 2018 Siemens Industry, Inc. Siemens Industry, Inc.
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