LANDIS & GYR SQN 30/31 111A2700 AIR DAMPER SERVOMOTOR ADJUSTMENT
Release lever
The working resistor thermostat must be set to 120 °C, while the safety one to 160 °C. Said adjustments can be slightly
modified following the type of fuel and particular uses.
A - Safety thermostat (160° C).
B - Working thermostat (120° C).
C - Levelling thermostat (130° C).
D - Heavy oil min. temp. thermostat (90° C).
Pocket for thermometer
Pocket for working thermostat
Remove cover to gain access to the adjusting cams. The cams
are to be adjusted through the suitable key provided for.
Description:
I
- Limit switch for air damper "High Flame" position adjustment
(Max. power).
II
- Limit switch "NOT USED".
III - Limit switch for air damper "Low Flame" position adjustment
(Min. power).
IV - Limit switch for 2nd stage's solenoid valve opening release.
NOTE: Cam IV (to allow the 2nd stage's solenoid valve opening) must
be adjusted to an intermediate position between the Low and High
Flame ones (to an angle approximately 5° greater than the low flame
position).
ADJUSTMENT OF FUEL THERMOSTATS
Pocket for levelling thermostat
- 25 -
420010270104 LO/HO-Tron 2.930 / 3.2100 Z
Pocket for safety thermostat
Pocket for min. temp. thermostat
EN