Honeywell T8131A Owner's Manual - Page 21

Average Fuel Utilization

Get Honeywell T8131A PDF manuals and user guides View all Honeywell T8131A manuals
Add to My Manuals
Save this manual to your list of manuals

Page 21 highlights

• Electric Furnace-leave at the Warm Air Furnace setting (A- leave in, B-out one turn). NOTE: This thermostat does not have a setting for steam/ gravity air. Cycles would not be long enough for accurate temperature control. IMPORTANT When using a high efficiency furnace such as a 90% or greater AFUE (Average Fuel Utilization Efficiency) unit, adjust screw A out one turn and leave screw B in. THERMOSTAT BACK A B FOR HIGH EFFICIENCY FURNACE (90%+ AFUE) ADJUST: SCREW A-OUT ONE TURN SCREW B-IN FUEL SWITCH - F POSITION FUEL SWITCH F E 21 ADJUST SCREWS THROUGH HOLES TO SELECT OPERATION DESIRED HEATING SYSTEM FUEL SWITCH POSITION WARM AIR A-IN B-IN F FURNACE HOT WATER A-OUT B-IN F BOILER 1 TURN ELECTRIC A-IN B-OUT E FURNACE 1 TURN W Y G C R M9199 69-0887-1

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
21
69-0887—1
•
Electric Furnace—leave at the
Warm Air Furnace setting (A—
leave in, B—out one turn).
NOTE:
This thermostat does not
have a setting for steam/
gravity air. Cycles would
not be long enough for
accurate temperature
control.
IMPORTANT
When using a high
efficiency furnace such as
a 90% or greater AFUE
(Average Fuel Utilization
Efficiency) unit, adjust
screw A out one turn and
leave screw B in.
R
W
Y
G
B
A
THERMOSTAT BACK
M9199
FOR HIGH EFFICIENCY FURNACE (90%+ AFUE)
ADJUST:
SCREW A–OUT ONE TURN
SCREW B–IN
FUEL SWITCH – F POSITION
F
E
FUEL SWITCH
WARM AIR
FURNACE
HOT WATER
BOILER
ELECTRIC
FURNACE
A–IN
A–OUT
1 TURN
A–IN
ADJUST SCREWS THROUGH HOLES
TO SELECT OPERATION DESIRED
B–IN
B–IN
B–OUT
1 TURN
FUEL SWITCH
POSITION
F
F
E
HEATING SYSTEM
C