Siemens SSB81U User Manual

Powermite 599 Series
Technical Instructions
Document No. 155-195P25
EA 599-13
December 18, 2003
MZ Series SSB Electronic Valve
Actuator
24 Vac 3-position (Floating) Control
EA0579R2
Description
The Powermite 599 MZ Series SSB electronic valve actuator requires a 24 Vac supply
floating control signal to provide three-position control. This actuator is designed to
work with Powermite 599 MZ Series zone control valves with a 7/32-inch (5.5 mm)
stroke and a threaded valve bonnet that fits the actuator.
Features
• UL listed for plenum installations.
• Direct-coupled installation without tools.
• Manual override
• Visual position indication.
Application
For use in heating and cooling HVAC applications with Powermite 599 MZ Series
valves that need 45 lb. (200N) nominal force. They can be used in liquid and steam
service applications.
Product Number
SSB81U Actuator prefix code 254
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 Technical Bulletin
TB 252 (155-307P25) for selection procedures.
To order an actuator only, use the product number.
Warning/Caution Notations
WARNING:
Personal injury or loss of life may occur if you do not perform
a procedure as specified.
CAUTION:
Equipment damage may occur if you do not follow procedure
as specified.
Siemens Building Technologies, Inc.

Siemens SSB81U Specifications

General

Manufacturer	Siemens
Model	SSB81U
Product Type	Controller
Ambient Temperature	-10°C to +55°C
Operating temperature	-10°C to +55°C

Summary

Powermite 599 Series Actuator Overview

Description

Details the Powermite 599 MZ Series SSB electronic valve actuator and its function.

Features

Highlights key features like UL listing, direct-coupled installation, manual override, and visual indication.

Application

Specifies use in HVAC applications with Powermite 599 MZ Series valves for heating and cooling.

Ordering Information

Provides guidance on how to order complete assemblies or individual actuators.

Warning and Caution Notations

Details safety warnings regarding personal injury and equipment damage.

Technical Specifications

Power Supply

Details operating voltage, frequency, and power consumption for the actuator.

Function Specifications

Lists running time, nominal stroke, and nominal force for the actuator.

Agency Certifications

States UL and CUL certifications for safety and standards compliance.

Ambient and Temperature Conditions

Defines operating, transport, storage, and medium temperature ranges.

Miscellaneous Specifications

Provides dimensions and weight details for the actuator unit.

Accessory and Service Kits

Lists available accessories and service parts for maintenance and upgrades.

Operation and Installation

Actuator Operation

Explains how control signals extend or retract the actuator output shaft.

Mounting and Installation

Provides guidance on mounting positions and cable attachment for plenum installations.

Wiring

Details power supply requirements and terminal connections for the actuator.

Manual Override and Wiring Details

Manual Override

Instructions for manually positioning the actuator shaft using the override knob.

Terminal Connections Table

Details standard symbols, functions, and terminal connections for wiring.

Start-Up, Troubleshooting, and Dimensions

Start-Up

Procedure for checking wiring and position indication before operation.

Troubleshooting

Guidance on checking wiring for proper connections if the actuator is inoperative.

Dimensions and Service Envelope

Provides physical dimensions and recommended access space for installation.