Honeywell S9240F1004

S9240F1004 MODULATING HOT SURFACE IGNITION INTEGRATED FURNACE CONTROL
69-2088—01 4
Table 1. Wiring Connections - Class 2 - Low Voltage.
Terminal Type Connection/Label
Board label
(see Fig. 1) Connects S9240F to:
12-position screw terminal block
(#5 screw)
W1
E7
Thermostat 1st stage heat input
W2 Thermostat 2nd stage heat input
G Thermostat continuous fan input
Y2 Thermostat 2nd stage cool input
Y1 Thermostat 1st stage cool input
C 24 Volt ground (connected to transformer and
chassis ground)
R 24 Volt hot
DH Not used
H - (optional) If used: 24V humidifier output
L Not used
O - (optional) If used: Thermostat signal to heat pump
reversing valve input
DS - (optional) If used: Thermostat Dehumidification or
Harmony Zoning input
4-position screw terminal block
(#5 screw)
Outdoor Sensor
E4
Not used
Discharge Air Sensor
- (optional)
If used: Discharge air sensor
Straight Spade Quick Connect Flame Sense E42 Flame signal input
12-pin connector (male terminals) Main Harness J2 Main valve, pressure switches, rollout, limit,
chassis ground, and 24 Vac
6-pin connector (male terminals) Circulator Motor P79 Motor serial control interface and furnace size
select input
Table 2. Wiring Connections - Class 1 - Line Voltage.
Terminal Type Connection/Label
Board label
(see Fig. 1) Connects S9240F to:
2 pin connector (male terminals) Igniter P77 – HSI Igniter interface
3-pin connector (male terminals) CAI Connector J3 – CAI 3-phase AC power
Straight Spade Quick-connect Humidifier HUM Humidifier 120 Vac output
EAC EAC Electronic air cleaner 120 Vac output
Neutrals E36, E37,
E38, E39,
and E40
Any neutral connector can be used for:
• 120 Vac Input neutral
• Transformer neutral
• Electronic air cleaner neutral
• Circulator neutral
• Humidifier neutral