WTR Series
Introduction / Product Capabilities and Features
L120 Installation & Maintenance Manual 120-11000 A
Introduction
Purpose
This Instruction and Maintenance Manual explains how to install and maintain the L120-10
through 40 actuators. Information on installation, disassembly, lubrication, and parts infor-
mation is provided.
User Safety
Safety notices in this manual detail precautions the user must take to reduce the risk of
personal injury and damage to the equipment. The user must read and be familiar with these
instructions before attempting installation, operation, or maintenance. Failure to observe
these precautions could result in serious bodily injury, damage to the equipment, warranty
void, or operational difficulty.
Safety notices are presented in this manual in three forms:
a WARNING: Refers to personal safety. Alerts the user of potential danger. Failure to
follow warning notices could result in personal injury or death.
CAUTION: Directs the user’s attention to general precautions that if not followed could
result in personal injury and/or equipment damage.
NOTE: Highlights information critical to the user’s understanding of the actuator’s
installation and operation.
Product Capabilities and Features
L120 Series actuators operate without modification in any rising or non-rising stem applica-
tion for linear action valves.
The actuators meet rigid safety requirements. The actuators are available in weatherproof,
explosionproof, and submersible configurations.
The actuators are compatible with a wide range of control options from stand-alone units
with local pushbutton to open standards-based DDC-100 networks with up to 250 actuators.
The actuators are designed with integral control packages including plug-in interconnect
boards that increase control functionality for stand-alone or networked units.
Durable torque overload is provided in both directions of travel.
Initial Inspection and Storage Instructions
a WARNING: Read this Installation and Maintenance Manual carefully and
completely before attempting to store the actuator. Be aware of the electrical hazards.
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