Honeywell MAGICSTAT 3355 Owner's Manual page 20

THERMOSTAT BACK
DISPLAY F
DISPLAY C
FOR HIGH EFFICIENCY FURNACE (90%+ AFUE)
ADJUST: SCREW A–OUT ONE TURN
SCREW B–IN
FUEL SWITCH – F POSITION
F
A C
C–IN
C–OUT
1 TURN
B D
FUEL SWITCH
E
20
ADJUST SCREWS THROUGH HOLES
TO SELECT OPERATION DESIRED
FUEL SWITCH
HEATING SYSTEM
POSITION
WARM AIR A–IN B–IN
FURNACE
HOT WATER A–OUT B–IN
BOILER 1 TURN
ELECTRIC A–IN B–OUT
FURNACE 1 TURN
W Y G
R
F
F
E
Rc
M8796
69-1012