S9240F2051 MODULATING INTEGRATED FURNACE CONTROL
69-2807—01 2
SPECIFICATIONS
Electrical Ratings
Line Voltage Supply: 97-120 Vac, 58-62 Hz; single phase
(132 Vac and 62 Hz maximum)
Input Voltage: 18-24 Vac (30 Vac maximum)
Input Current: 500 mA (control only)
Current Draw: 0.5 A Input Current plus valve load and
optional 24 VAC humidifier load at 24Vac
Igniter Current: 1.0 A maximum resistive at 120 Vac output
Induced Draft Blower: 33-110 Vac; 45-180 Hz; 1.1 A at
110 Vac 3-phase (full load)
Gas Valve: 1.5 A at 30 Vac; Inrush current 3.0 A at 30 Vac;
Inrush duration 16 ms
Line Voltage Humidifier: 1 A resistive load maximum at
120 Vac
Low Voltage Humidifier (option): 1A resistive at 24 Vac
Electronic Air Cleaner: 1 A resistive load maximum at
120 Vac
Gas Control: Honeywell VK8105R or VR9205R variable firing
rate, 24 Vac valve
Cooling Contactor: Any 24 Vac contactor rated at 1.0 A or
less
Timings
Prepurge: 15 seconds
HSI Warm-up: 20 seconds
Trial for Ignition: 4 seconds
Ignition Stabilization Period: 30 seconds
Flame Failure Response Time: 2 seconds maximum
Gas Valve Sequence Period: 20 seconds
Postpurge: 20 seconds (15 seconds at current fire rate and 5
seconds at 40% fire rate)
Interpurge: 15 seconds
Auto Restart Delay: 60 minutes (after Soft Lockout)
Ignition Trials: Five total; four retries if flame is not sensed on
the first trial
Ignition Recycles: 4 total; 3 recycles if flame lost on first trial
Second Stage Recognition Delay: 30 seconds (only on First
Call for High Fire on a Call for Heat)
Second Stage ON Delay: 7 or 12 minutes - when used with a
single stage thermostat (see Table 5 on page 8); default is
7 minutes
Third Stage ON Delay: 10 minutes - when used with a single
stage thermostat
Fan Delays:
Heat Fan ON Delay: 30 seconds
Heat Fan OFF Delay: 60, 90, 120, or 180 seconds; default
90 seconds; see Table 5 on page 8
Cool Fan ON Delay: 2 seconds plus selected Cooling Pro-
file; see Table 6 on page 9
Cool Fan OFF Delay: selected Cooling Profile; see Table 6
on page 9
Circulator Speeds:
Heat: various settings available; see Table 7 on page 10
Cool: low, medium-low, medium-high, and high speeds
available; see Table 6 on page 9
Fan (Thermostat G terminal): continuous fan CFM is 38%
of the circulator speed that is set by switches 8 and 9 on
DIP switch 2; see Table 6 on page 9.
LED
The 7-segment LED communicates:
• System status
•Error codes
• Enables, via a pushbutton, alternate modes (Idle,
Diagnostic, and Field Test) of operation
Operating
Operating Temperature: -40°F to +175°F (-40°C to +79°C)
Storage Temperature: -40°F to +185°F (-40°C to +85°C)
Relative Humidity: 0% to 95% non condensing
Approvals
CSA
ANSI Z21.20
INSTALLATION
When Installing This Product…
1. Read these instructions carefully. Failure to follow them
could damage the product or cause a hazardous
condition.
2. Check the ratings given in these instructions to make
sure the integrated furnace control is suitable for your
application.
3. Installer must be a trained, experienced service
technician.
4. After installation is complete, check out operation as
provided in these instructions.
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