The Lfl; Control Interface; Installation - Siemens LFL Series Technical Instructions

Control interface

Installation

2/12
Siemens Building Technologies
Indicator dial visible
through front window
The LFL... reset button
is integrated with the front window.
During a lockout condition,
pressing the window resets the LFL...
*
Pressing the window or remote reset
during normal operation will lockout the LFL...
*
Do not hold reset button for more than
10 seconds! (Local or remote) , exceeding
10 seconds will damage control !
Manually press the lockout reset button.
Do NOT use any tools or pointed objects.
Indicator dial provides symbolic information about the program sequence, the type of fault,
and the point in the sequence where the fault occurred.

The LFL...

sequence is
fixed and
cannot be
manually
manipulated.
•
All installation and commissioning work must be performed by qualified personnel.
•
The LFL... must be mounted in an electrical enclosure, typically in the control panel.
•
All wiring must comply with applicable electrical codes standards and regulations.
•
Before performing any wiring to the LFL..., remove and isolate all power.
•
High voltage AC wiring must not be installed in the same conduit
as the flame detector wiring.
•
Maximum 10 A slow external fuse is required.
•
The LFL is not adversely affected by electromagnetic resonance.
•
Ground the LFL... wiring base.
•
Do not open or modify the LFL...
•
When UV flame supervision is used, other sources of radiation, such as halogen
lamps, welding equipment, ignition sparks can produce erroneous flame signals.
Lockout indicator light
visible through front
window
HVAC Products
11.15.2004