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.
Jumper
W915 - 2-Stage Compressor
W951 - Heat Pump
W914 - Dehumidifier or Harmony III
TEMPERATURE SENSORS – E4
SIDE HOOK (X2)
FOR
PANEL MOUNTING
W1
W2
G
Y2
Y1
E7
C
R
DH
H
L
W914
DEHUM
OR
HARMONY
Fig. 1. Typical wiring connections and component locations for S9240F1004 Integrated Furnace Control
S9240F1004 MODULATING HOT SURFACE IGNITION INTEGRATED FURNACE CONTROL
Table 3. Jumpers.
Board label
(see Fig. 1)
W915
W951
W914
S3
1
P80
W951
W915
J2
HEAT
2-STAGE
MAIN
HARNESS
PUMP
COMPR
(minor components removed for clarity).
UNCUT: Single stage compressor (factory default)
CUT: 2-stage compressor
UNCUT: Compressor heating disabled (factory default)
CUT: Compressor heating enabled
UNCUT: Harmony III and dehumidifying operation disabled
(factory default)
CUT: Harmony III and dehumidifying operation enabled
S2
S1
PUSH BUTTON
LED
EAC
HUM
P79
EAC
HUM
CIRCULATOR
MOTOR
HARNESS
1
FACTORY USE ONLY.
5
Action:
E42 – FLAME SENSE
NEUTRALS
L1
L1
P77
NEUTRALS
HSI
E36, E37, E38, E39, AND E40
J3 – CAI
M28148
69-2088—01
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