Lennox LHT Series Service Manual page 19

Adjust relay amp setting according to value given on the blower motor nameplate. Proper relay amp setting equals
Use small slotted screwdriver to adjust control mode from automatic reset (A) to manual reset (H).
Control must be in the manual reset mode (H) to perform a test. Press the red test button. Green trip indicator
should pop out. Press the blue reset screw to reset the relay.
SIEMENS OVERLOAD RELAY
FACTORY SET AUTO MODE
motor nameplate FLA X service factor of 1.15 X .95.
FIGURE 6
Compressor Detail
B1, B2
FIGURE 7
Page 19
BLUE RESET BUTTON IN
(Turn clockwise to H for
manual reset)
GREEN TRIP INDICATOR
(Flush with surface -- not tripped;
Above surface -- tripped)
TON
AMP ADJUSTMENT DIAL