Leslie Controls Unfired Steam Generator LVSG SERIES User Manual
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Level control type 
There are two types of level controllers, either one of which 
may be supplied with Unfired Steam Generator. First type is a 
4 ball float assembly type mounted in a stainless steel body 
with a shape as shown below. This is TYPE [0]. second type 
is a one ball float type with multiple switches in a cast iron 
body with a shape as shown below. This is TYPE [1].  
 
Type 0 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Type 1 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
It is extremely important that type of level control supplied 
and type listed in solid state controller be same. Generator 
is factory shipped with matched types. 
1.
Press NEXT key 7 times and following screen will 
appear: 
Screen 8 
LEVEL CONTROL 
 
2.
Press SELECT key and screen will read:
Screen 8 
LEVEL CONTROL 
TYPE [XXX] 
3.
Verify that type listed on screen and type supplied on 
Unfired Steam Generator are same. IF AND ONLY IF 
type of level control is different than screen setting should 
screen setting be changed. To change screen setting press 
NEXT key to scroll through two types 
4.
If both types match press SELECT key to place setting im 
memory and return to home screen. 
 
Initial Settings 
 Initial settings are for factory use only and can not be 
accessed 
 
Diagnostics 
Are used for factory testing and are not field useable. To go to 
“home” screen press Alarm Silence. 
Screen 10 
 PRESSURE SENSOR 
 
About 
This screen lists version of controller. When contacting 
factory about controller be sure to mention version. 
1.
 Press NEXT key 10 times and following screen will 
appear: 
Screen 11 
 ABOUT 
 
2.
Press SELECT key and screen will read:
Screen 11 
 ABOUT 
LESLIE VER [XXX] 
 
3.
Be sure to note version when contacting factory.
4.
Press SELECT key to return to home screen.
 
Quit screen 
This screen is only used to return to home screen. 
1.
 Press NEXT key eleven times and following screen will 
appear: 
Screen 12 
 QUIT 
2.
Press select key and program will return to home screen.
Note: After 60 seconds in any screen “home” screen will be 
displayed 
 
 
 
 
