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5.6.3 Replacement of partially filled pipes type
When detector of partially filled pipes type is replaced from LF502 or LF502(FS2 type) to
LF232*F, please be careful to the following points.
• Installing
In the case of replacement from LF502(FS2 type):
The diameter of hole, width of installation metal fittings of LF232, an external size of the
body of converter are the same. In the installation panel processing, the built-in space, a
change is unnecessary.
Because switch of LF232 is the infrared switch, please avoid a place with the following
factor.
◆Factors to impede infrared switch to operate properly
・Intense light such as direct sunlight and reflected sunlight by window glass or metal plate
・Place where brightness changes always such as ON/OFF of lighting
・Dense smoke or steam near the control panel
・ Those attached on the control panel such as rain (dew drop), snow, ice, mud and oil, and
haze due to their attachment
・ Light reflecting object near the control panel, or reflecting object such as metal plate
placed opposing to the control panel
When any of above factors is considered, take a measure for the proper operation of infrared
switch such as to place a cover or to secure a space for at least a person to stand in front of the
control panel.
When unable to avoid above factors, operate the EMF converter removing the factor by
covering the control panel by hand so that light does not shine on it, by cleaning those attached
on the control panel, or by standing in-between the reflecting object and the control panel to
block the light.
Table 5.3 Case specifications comparison list (Partially filled pipes type)
Model LF502 LF502 (FS2 type) LF232*F
Width of installation （W×H） 220×200 74×370
Size of body（W×H×L）（Note） 325×426×264 234.5×370×150
Note: Cable ground, in stallation metal fittings are removed from height.